Error fixing and debugging implementation.

- Implement /student_card_class_barcode_download route to filter student cards by class
- Dynamically extract unique class names from the database for frontend selection
- Update student_cards_admin.html to replace the text input with a class selection dropdown

.github/workflows/release-docker.yml

@@ -4,17 +4,20 @@ on:
   push:
     tags:
       - "v*"
+    branches:
+      - main
   workflow_dispatch:
     inputs:
-      bump:
+      release_type:
-        description: "Version bump type (major stays fixed from latest release)"
+        description: "Release type"
         required: false
         default: "patch"
         type: choice
         options:
-          - patch
-          - minor
           - major
+          - minor
+          - patch
+          - dev
 
 permissions:
   contents: write
@@ -38,12 +41,70 @@ jobs:
           REPO: ${{ gitea.repository }}
           EVENT_NAME: ${{ gitea.event_name }}
           REF_NAME: ${{ gitea.ref_name }}
-          BUMP_TYPE: ${{ gitea.event.inputs.bump || 'patch' }}
+          RELEASE_TYPE: ${{ gitea.event.inputs.release_type || 'patch' }}
           DOCKER_API_VERSION: '1.44'
         run: |
-          if [ "$EVENT_NAME" = "push" ] && [ -n "$REF_NAME" ]; then
+          latest_stable_tag() {
+            local releases_file="$1"
+            python3 -c "import json, sys; releases = json.load(open(sys.argv[1], encoding='utf-8')); print(next((release.get('tag_name', '').strip() for release in releases if not release.get('prerelease') and not release.get('draft')), ''))" "$releases_file"
+          }
+
+          next_dev_suffix() {
+            local releases_file="$1"
+            local base_tag="$2"
+            python3 -c "import json, re, sys; releases_path, base_tag = sys.argv[1], sys.argv[2].strip(); pattern = re.compile(r'^' + re.escape(base_tag) + r'-dev\\.(\\d+)$'); releases = json.load(open(releases_path, encoding='utf-8')); highest = max([int(match.group(1)) for release in releases for match in [pattern.match(release.get('tag_name', '').strip())] if match], default=0); print(highest + 1)" "$releases_file" "$base_tag"
+          }
+
+          make_dev_tag() {
+            local releases_file="$1"
+            local stable_tag="$2"
+            local major minor patch next_suffix
+
+            if [[ "$stable_tag" =~ ^v([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
+              major=${BASH_REMATCH[1]}
+              minor=${BASH_REMATCH[2]}
+              patch=${BASH_REMATCH[3]}
+            else
+              major=0
+              minor=8
+              patch=31
+            fi
+
+            patch=$((patch + 1))
+            next_suffix="$(next_dev_suffix "$releases_file" "v${major}.${minor}.${patch}")"
+            printf 'v%s.%s.%s-dev.%s' "$major" "$minor" "$patch" "$next_suffix"
+          }
+
+          releases_file="$(mktemp)"
+          trap 'rm -f "${releases_file:-}"' EXIT
+
+          if [ "$EVENT_NAME" = "push" ] && [ "$REF_NAME" = "main" ]; then
+            prerelease=true
+            if ! curl -fsSL -H "Authorization: Bearer $GH_TOKEN" -H "Accept: application/json" "https://git.invario-software.eu/api/v1/repos/$REPO/releases" -o "$releases_file"; then
+              echo "Error: could not fetch release list"
+              exit 1
+            fi
+            latest_tag="$(latest_stable_tag "$releases_file")"
+            if [ -z "$latest_tag" ]; then
+              latest_tag="v0.8.31"
+            fi
+            TAG="$(make_dev_tag "$releases_file" "$latest_tag")"
+          elif [ "$EVENT_NAME" = "workflow_dispatch" ] && [ "$RELEASE_TYPE" = "dev" ]; then
+            prerelease=true
+            if ! curl -fsSL -H "Authorization: Bearer $GH_TOKEN" -H "Accept: application/json" "https://git.invario-software.eu/api/v1/repos/$REPO/releases" -o "$releases_file"; then
+              echo "Error: could not fetch release list"
+              exit 1
+            fi
+            latest_tag="$(latest_stable_tag "$releases_file")"
+            if [ -z "$latest_tag" ]; then
+              latest_tag="v0.8.31"
+            fi
+            TAG="$(make_dev_tag "$releases_file" "$latest_tag")"
+          elif [ "$EVENT_NAME" = "push" ] && [ -n "$REF_NAME" ]; then
+            prerelease=false
             TAG="$REF_NAME"
           else
+            prerelease=false
             latest_tag="v0.8.31"
             if meta_json=$(curl -fsSL -H "Authorization: Bearer $GH_TOKEN" -H "Accept: application/json" "https://git.invario-software.eu/api/v1/repos/$REPO/releases/latest" 2>/dev/null); then
               tag_name=$(printf "%s" "$meta_json" | sed -n 's/.*"tag_name"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p' | head -n1)
@@ -60,9 +121,9 @@ jobs:
               major=0; minor=8; patch=31
             fi
 
-            if [ "${BUMP_TYPE:-}" = "major" ]; then
+            if [ "${RELEASE_TYPE:-}" = "major" ]; then
               major=$((major + 1)); minor=0; patch=0
-            elif [ "${BUMP_TYPE:-}" = "minor" ]; then
+            elif [ "${RELEASE_TYPE:-}" = "minor" ]; then
               minor=$((minor + 1)); patch=0
             else
               patch=$((patch + 1))
@@ -109,6 +170,7 @@ jobs:
           echo "tag=$TAG" >> "$GITHUB_OUTPUT"
           echo "image=$IMAGE" >> "$GITHUB_OUTPUT"
           echo "lower_repo=$LOWER_REPO" >> "$GITHUB_OUTPUT"
+          echo "prerelease=$prerelease" >> "$GITHUB_OUTPUT"
 
       - name: Ensure Docker CLI is available and up to date
         run: |
@@ -148,6 +210,7 @@ jobs:
           password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Build and push release image
+        if: steps.meta.outputs.prerelease != 'true'
         uses: docker/build-push-action@v6
         with:
           context: .
@@ -157,6 +220,16 @@ jobs:
             ${{ steps.meta.outputs.image }}
             git.invario-software.eu/${{ steps.meta.outputs.lower_repo }}:latest
 
+      - name: Build and push prerelease image
+        if: steps.meta.outputs.prerelease == 'true'
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ${{ steps.meta.outputs.image }}
+
       - name: Create release-only docker bundle
         run: |
             mkdir -p release-bundle
@@ -253,5 +326,6 @@ jobs:
         uses: https://gitea.com/actions/gitea-release-action@v1
         with:
           tag_name: ${{ steps.meta.outputs.tag }}
+          prerelease: ${{ steps.meta.outputs.prerelease }}
           files: |
             inventarsystem-docker-bundle.tar.gz

Web/modules/database/items.py

@@ -20,12 +20,31 @@ Collection Structure:
 """
 from bson.objectid import ObjectId
 from bson.errors import InvalidId
+import uuid
 import datetime
 import Web.modules.database.settings as cfg
 from Web.modules.database.settings import MongoClient
 import Web.modules.inventarsystem.data_protection as dp
+import logging
 
 
+def is_library_item(item):
+    """
+    Ermittelt zuverlässig, ob ein Objekt zur Bibliothek gehört.
+    Gibt True zurück, wenn ItemType ein Medientyp ist (Buch, Schulbuch, CD, DVD etc.)
+    ODER wenn is_library explizit True ist.
+    """
+    if not item:
+        return False
+
+    # 1. Prüfe zuerst den Medientyp (ItemType)
+    item_type = str(item.get('ItemType', '') or '').strip().lower()
+    if item_type and item_type not in ['other', 'general', 'none', 'null']:
+        return True
+
+    # 2. Falls ItemType 'other' ist, prüfe das is_library Flag
+    return bool(item.get('is_library', False))
+
 def safe_decrypt_user(encrypted_user):
     """
     Safely decrypt an encrypted username string.
@@ -250,7 +269,10 @@ def get_group_item_ids(id):
 
 
 def update_item(id, name, ort, beschreibung, images, verfuegbar, filter1, filter2, filter3,
-                ansch_jahr, ansch_kost, code_4, reservierbar, isbn=None, item_type='general'):
+                ansch_jahr, ansch_kost, code_4, reservierbar, isbn="", item_type='other', library_category=""):
+    """
+    Aktualisiert ein Objekt in MongoDB und setzt is_library korrekt basierend auf dem Medientyp.
+    """
     try:
         client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
         db = client[cfg.MONGODB_DB]
@@ -258,29 +280,35 @@ def update_item(id, name, ort, beschreibung, images, verfuegbar, filter1, filter
 
         old_item = items.find_one({'_id': ObjectId(id)})
         if not old_item:
+            client.close()
             return False
 
         series_group_id = old_item.get('SeriesGroupId')
 
+        # is_library automatisch anhand des neuen item_type bestimmen
+        is_lib = is_library_item({'ItemType': item_type})
+
         shared_update = {
             'Name': name,
             'Ort': ort,
             'Beschreibung': beschreibung,
-            'Images': images,
+            'Images': images if isinstance(images, list) else [],
-            'Filter': filter1,
+            'Filter': filter1 if isinstance(filter1, list) else [],
-            'Filter2': filter2,
+            'Filter2': filter2 if isinstance(filter2, list) else [],
-            'Filter3': filter3,
+            'Filter3': filter3 if isinstance(filter3, list) else [],
             'Anschaffungsjahr': ansch_jahr,
             'Anschaffungskosten': ansch_kost,
-            'Reservierbar': reservierbar,
+            'Reservierbar': bool(reservierbar),
-            'ISBN': isbn,
+            'ISBN': str(isbn) if isbn else '',
             'ItemType': item_type,
-            'Verfuegbar': verfuegbar,
+            'is_library': is_lib,
+            'library_category': library_category,
+            'Verfuegbar': bool(verfuegbar),
             'LastUpdated': datetime.datetime.now()
         }
 
         specific_update = shared_update.copy()
-        specific_update['Code_4'] = code_4
+        specific_update['Code_4'] = str(code_4) if code_4 else ''
 
         items.update_one({'_id': ObjectId(id)}, {'$set': specific_update})
 
@@ -1148,3 +1176,254 @@ def get_current_status(item_id, decrypt=True):
     except Exception as e:
         print(f"Error retrieving current status for item {item_id}: {e}")
         return None
+
+def sync_group_codes(primary_obj_id, base_code, individual_codes_list):
+    """
+    Synchronisiert die Barcodes einer Gruppe im korrekten Schema
+    (angelehnt an das 'Augenmodell groß'-Vorbild).
+    """
+    if not base_code:
+        return False
+
+    # Alle Ziel-Codes zusammenführen (Basis-Code an erster Stelle)
+    all_target_codes = [base_code]
+    for c in individual_codes_list:
+        if c and c not in all_target_codes:
+            all_target_codes.append(c)
+
+    item_count = len(all_target_codes)
+
+    try:
+        client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
+        db = client[cfg.MONGODB_DB]
+        items = db['items']
+
+        primary_item = items.find_one({'_id': ObjectId(primary_obj_id)})
+        if not primary_item:
+            client.close()
+            return False
+
+        group_id = primary_item.get('SeriesGroupId')
+
+        # Wenn es mehr als 1 Item gibt und noch keine Gruppe existiert -> Neue GroupID erzeugen
+        if not group_id and item_count > 1:
+            group_id = str(uuid.uuid4())
+
+        # Wenn es nun eine Gruppe gibt (item_count > 1)
+        if item_count > 1:
+            # 1. Haupt-Item (Parent) aktualisieren
+            items.update_one(
+                {'_id': primary_item['_id']},
+                {'$set': {
+                    'Code_4': base_code,
+                    'SeriesGroupId': group_id,
+                    'SeriesCount': item_count,
+                    'SeriesPosition': 1,
+                    'IsGroupedSubItem': False,
+                    'ParentItemId': None
+                }}
+            )
+
+            # Bestehende Gruppenmitglieder laden
+            existing_items = list(items.find({'SeriesGroupId': group_id}))
+            existing_map = {it.get('Code_4'): it for it in existing_items if
+                            it.get('Code_4') and str(it['_id']) != str(primary_item['_id'])}
+
+            # Alle verbleibenden Sub-Codes ab Position 2 abarbeiten
+            processed_sub_ids = []
+            for idx, code in enumerate(all_target_codes[1:], start=2):
+                if code in existing_map:
+                    # Existiert bereits in der Gruppe -> Nur Position und Count aktualisieren
+                    sub_item = existing_map[code]
+                    processed_sub_ids.append(sub_item['_id'])
+                    items.update_one(
+                        {'_id': sub_item['_id']},
+                        {'$set': {
+                            'SeriesCount': item_count,
+                            'SeriesPosition': idx,
+                            'IsGroupedSubItem': True,
+                            'ParentItemId': str(primary_item['_id'])
+                        }}
+                    )
+                else:
+                    # Neu hinzukommender Code -> Als Klon (Sub-Item) erstellen
+                    new_sub = primary_item.copy()
+                    if '_id' in new_sub:
+                        del new_sub['_id']
+
+                    new_sub.update({
+                        'Code_4': code,
+                        'SeriesGroupId': group_id,
+                        'SeriesCount': item_count,
+                        'SeriesPosition': idx,
+                        'IsGroupedSubItem': True,
+                        'ParentItemId': str(primary_item['_id']),
+                        'LastUpdated': primary_item.get('LastUpdated')
+                    })
+                    inserted_res = items.insert_one(new_sub)
+                    processed_sub_ids.append(inserted_res.inserted_id)
+
+            # Nicht mehr benötigte Sub-Items aus dieser Gruppe entfernen
+            for code, sub_item in existing_map.items():
+                if sub_item['_id'] not in processed_sub_ids:
+                    items.delete_one({'_id': sub_item['_id']})
+
+        else:
+            # Fall: Nur 1 einziges Item (keine Gruppe / Gruppe aufgelöst)
+            # Eventuelle alte Sub-Items dieser Gruppe löschen
+            if group_id:
+                items.delete_many({
+                    'SeriesGroupId': group_id,
+                    '_id': {'$ne': primary_item['_id']}
+                })
+
+            items.update_one(
+                {'_id': primary_item['_id']},
+                {'$set': {
+                    'Code_4': base_code,
+                    'SeriesGroupId': None,
+                    'SeriesCount': 1,
+                    'SeriesPosition': 1,
+                    'IsGroupedSubItem': False,
+                    'ParentItemId': None
+                }}
+            )
+
+        client.close()
+        return True
+    except Exception as e:
+        print(f"Error syncing group codes: {e}")
+        return False
+
+
+logging.basicConfig(level=logging.INFO, format='%(levelname)s: %(message)s')
+
+
+def cleanup_orphaned_images(fs, dry_run=True):
+    """
+    Finds images in GridFS that are no longer referenced by any item
+    and optionally deletes them.
+
+    Supported item fields:
+        - book_cover_image
+        - image
+        - images
+
+    The fields are expected to contain GridFS file ObjectIds.
+
+    :param fs: GridFS instance, e.g. gridfs.GridFS(db)
+    :param dry_run: If True, only reports what would be deleted.
+                    If False, actually deletes the files.
+    """
+
+    logging.info("Starte Cleanup-Skript...")
+
+    client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
+
+    try:
+        db = client[cfg.MONGODB_DB]
+        items_collection = db["items"]
+
+        referenced_files = set()
+
+        for item in items_collection.find(
+            {},
+            {
+                "Images": 1
+            }
+        ):
+            images = item.get("Images")
+
+            if isinstance(images, list):
+                for img in images:
+                    if img:
+                        referenced_files.add(img)
+
+        referenced_files.discard(None)
+
+        logging.info(
+            f"{len(referenced_files)} referenzierte GridFS-Dateien gefunden."
+        )
+
+        orphaned_files = []
+
+        for grid_file in fs.find():
+            file_id = grid_file._id
+            filename = grid_file.filename or ""
+
+            if not filename.lower().endswith(
+                (".jpg", ".jpeg", ".png", ".gif", ".webp")
+            ):
+                continue
+
+            if file_id not in referenced_files:
+                orphaned_files.append(
+                    {
+                        "_id": file_id,
+                        "filename": filename,
+                        "upload_date": grid_file.upload_date,
+                    }
+                )
+
+        logging.info(
+            f"Gefundene verwaiste Bilder: {len(orphaned_files)}"
+        )
+
+        if dry_run:
+            logging.info(
+                "--- DRY RUN AKTIV - Es wird nichts gelöscht ---"
+            )
+
+            for file in orphaned_files:
+                logging.info(
+                    f"Würde löschen: "
+                    f"{file['filename']} "
+                    f"(ID: {file['_id']}, "
+                    f"Hochgeladen: {file['upload_date']})"
+                )
+
+            logging.info(
+                "--- Setze dry_run=False, um physisch zu löschen ---"
+            )
+
+        else:
+            logging.warning("--- LÖSCHVORGANG AKTIV ---")
+
+            deleted_count = 0
+            failed_count = 0
+
+            for file in orphaned_files:
+                try:
+                    fs.delete(file["_id"])
+
+                    deleted_count += 1
+
+                    logging.info(
+                        f"Gelöscht: {file['filename']} "
+                        f"(ID: {file['_id']})"
+                    )
+
+                except Exception as e:
+                    failed_count += 1
+
+                    logging.error(
+                        f"Fehler beim Löschen von "
+                        f"{file['filename']} "
+                        f"(ID: {file['_id']}): {e}"
+                    )
+
+            logging.info(
+                f"Cleanup beendet. "
+                f"{deleted_count} Bilder gelöscht, "
+                f"{failed_count} Fehler."
+            )
+
+        return {
+            "status": "success",
+            "referenced_count": len(referenced_files),
+            "orphaned_count": len(orphaned_files),
+            "dry_run": dry_run,
+        }
+
+    finally:
+        client.close()

Web/modules/database/user.py

@@ -211,6 +211,7 @@ PERMISSION_PRESETS = {
         },
         'pages': {
             'home': True,
+            'home_admin': True,
             'tutorial_page': True,
             'my_borrowed_items': True,
             'notifications_view': True,
@@ -369,10 +370,10 @@ def update_user_permissions(username, preset_key, action_permissions=None, page_
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db = _get_tenant_db(client)
     users = db['users']
-    result = users.update_one({'Username': dp.encrypt_text(username)}, {'$set': update_data})
+    result = users.update_one({'Username': username}, {'$set': update_data})
 
     if result.matched_count == 0:
-        result = users.update_one({'username': dp.encrypt_text(username)}, {'$set': update_data})
+        result = users.update_one({'username': username}, {'$set': update_data})
 
     client.close()
     return result.matched_count > 0
@@ -384,7 +385,7 @@ def get_favorites(username):
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db = _get_tenant_db(client)
     users = db['users']
-    user = users.find_one({'Username': dp.encrypt_text(username)}) or users.find_one({'username': dp.encrypt_text(username)})
+    user = users.find_one({'Username': username}) or users.find_one({'username': username})
     client.close()
     if not user:
         return []
@@ -399,7 +400,7 @@ def add_favorite(username, item_id):
         db = _get_tenant_db(client)
         users = db['users']
         users.update_one(
-            {'$or': [{'Username': dp.encrypt_text(username)}, {'username': dp.encrypt_text(username)}]},
+            {'$or': [{'Username': username}, {'username': username}]},
             {'$addToSet': {'favorites': ObjectId(item_id)}}
         )
         client.close()
@@ -414,7 +415,7 @@ def remove_favorite(username, item_id):
         db = _get_tenant_db(client)
         users = db['users']
         users.update_one(
-            {'$or': [{'Username': dp.encrypt_text(username)}, {'username': dp.encrypt_text(username)}]},
+            {'$or': [{'Username': username}, {'username': username}]},
             {'$pull': {'favorites': ObjectId(item_id)}}
         )
         client.close()
@@ -496,7 +497,7 @@ def check_nm_pwd(username, password):
         db = client[db_name]
         users = db['users']
 
-        query = {'$or': [{'Username': dp.encrypt_text(username)}, {'username': dp.encrypt_text(username)}]}
+        query = {'$or': [{'Username': username}, {'username': username}]}
         user_record = users.find_one(query)
 
         if user_record is None:
@@ -507,8 +508,6 @@ def check_nm_pwd(username, password):
                     default_users = client[cfg.MONGODB_DB]['users']
                     user_record_fallback = default_users.find_one(
                         {'$or': [
-                            {'Username': dp.encrypt_text(username)},
-                            {'username': dp.encrypt_text(username)},
                             {'Username': username},
                             {'username': username},
                         ]}
@@ -650,7 +649,7 @@ def add_user(
         safe_last_name = last_name.strip() if last_name else ''
 
         user_doc = {
-            'Username': dp.encrypt_text(username),
+            'Username': username,
             'Password': hashing(password),
             'Admin': (permission_preset == "full_access"),
             'active_ausleihung': None,
@@ -711,9 +710,9 @@ def make_admin(username):
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db = _get_tenant_db(client)
     users = db['users']
-    result = users.update_one({'Username': dp.encrypt_text(username)}, {'$set': {'Admin': True}})
+    result = users.update_one({'Username': username}, {'$set': {'Admin': True}})
     if result.matched_count == 0:
-        result = users.update_one({'username': dp.encrypt_text(username)}, {'$set': {'Admin': True}})
+        result = users.update_one({'username': username}, {'$set': {'Admin': True}})
     client.close()
     return result.matched_count > 0
 
@@ -723,9 +722,9 @@ def remove_admin(username):
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db = _get_tenant_db(client)
     users = db['users']
-    result = users.update_one({'Username': dp.encrypt_text(username)}, {'$set': {'Admin': False}})
+    result = users.update_one({'Username': username}, {'$set': {'Admin': False}})
     if result.matched_count == 0:
-        result = users.update_one({'username': dp.encrypt_text(username)}, {'$set': {'Admin': False}})
+        result = users.update_one({'username': username}, {'$set': {'Admin': False}})
     client.close()
     return result.matched_count > 0
 
@@ -737,7 +736,7 @@ def get_user(username):
         def find_in_db(database_name):
             db = client[database_name]
             users = db['users']
-            return users.find_one({'Username': dp.encrypt_text(username)}) or users.find_one({'username': dp.encrypt_text(username)}) or users.find_one({'username': username}) or users.find_one({'Username': username})
+            return users.find_one({'Username': username}) or users.find_one({'username': username}) or users.find_one({'username': username}) or users.find_one({'Username': username})
 
         tenant_db, tenant_id = _resolve_request_tenant_db()
         if tenant_db:
@@ -773,12 +772,12 @@ def update_active_ausleihung(username, id_item, ausleihung):
     users = db['users']
 
     result = users.update_one(
-        {'Username': dp.encrypt_text(username)},
+        {'Username': username},
         {'$set': {'active_ausleihung': {'Item': id_item, 'Ausleihung': ausleihung}}}
     )
     if result.matched_count == 0:
         users.update_one(
-            {'username': dp.encrypt_text(username)},
+            {'username': username},
             {'$set': {'active_ausleihung': {'Item': id_item, 'Ausleihung': ausleihung}}}
         )
     client.close()
@@ -791,7 +790,7 @@ def get_active_ausleihung(username):
     db = _get_tenant_db(client)
     users = db['users']
 
-    user = users.find_one({'Username': dp.encrypt_text(username)}) or users.find_one({'username': dp.encrypt_text(username)})
+    user = users.find_one({'Username': username}) or users.find_one({'username': username})
     client.close()
 
     if not user:
@@ -806,7 +805,7 @@ def has_active_borrowing(username):
         db = _get_tenant_db(client)
         users = db['users']
 
-        user = users.find_one({'username': dp.encrypt_text(username)}) or users.find_one({'Username': dp.encrypt_text(username)})
+        user = users.find_one({'username': username}) or users.find_one({'Username': username})
         client.close()
 
         if not user:
@@ -823,9 +822,9 @@ def delete_user(username):
     db = _get_tenant_db(client)
     users = db['users']
 
-    result = users.delete_one({'username': dp.encrypt_text(username)})
+    result = users.delete_one({'username': username})
     if result.deleted_count == 0:
-        result = users.delete_one({'Username': dp.encrypt_text(username)})
+        result = users.delete_one({'Username': username})
 
     client.close()
     return result.deleted_count > 0
@@ -840,9 +839,9 @@ def update_active_borrowing(username, item_id, status):
 
         update_data = {'$set': {'active_borrowing': status, 'borrowed_item': item_id if status else None}}
 
-        result = users.update_one({'username': dp.encrypt_text(username)}, update_data)
+        result = users.update_one({'username': username}, update_data)
         if result.matched_count == 0:
-            result = users.update_one({'Username': dp.encrypt_text(username)}, update_data)
+            result = users.update_one({'Username': username}, update_data)
 
         client.close()
         return result.modified_count > 0
@@ -856,7 +855,7 @@ def get_name(username):
     db = _get_tenant_db(client)
     users = db['users']
 
-    user = users.find_one({'Username': dp.encrypt_text(username)}) or users.find_one({'username': dp.encrypt_text(username)})
+    user = users.find_one({'Username': username}) or users.find_one({'username': username})
     client.close()
 
     if not user or not user.get("name"):
@@ -871,7 +870,7 @@ def get_last_name(username):
     db = _get_tenant_db(client)
     users = db['users']
 
-    user = users.find_one({'Username': dp.encrypt_text(username)}) or users.find_one({'username': dp.encrypt_text(username)})
+    user = users.find_one({'Username': username}) or users.find_one({'username': username})
     client.close()
 
     if not user or not user.get("last_name"):
@@ -906,12 +905,12 @@ def update_password(username, new_password):
         hashed_password = hashing(new_password)
 
         result = users.update_one(
-            {'Username': dp.encrypt_text(username)},
+            {'Username': username},
             {'$set': {'Password': hashed_password}}
         )
         if result.matched_count == 0:
             result = users.update_one(
-                {'username': dp.encrypt_text(username)},
+                {'username': username},
                 {'$set': {'Password': hashed_password}}
             )
 
@@ -933,12 +932,12 @@ def update_user_name(username, name, last_name):
         safe_last_name = dp.encrypt_text(last_name.strip()) if last_name else ''
 
         result = users.update_one(
-            {'Username': dp.encrypt_text(username)},
+            {'Username': username},
             {'$set': {'name': safe_name, 'last_name': safe_last_name}}
         )
         if result.matched_count == 0:
             result = users.update_one(
-                {'username': dp.encrypt_text(username)},
+                {'username': username},
                 {'$set': {'name': safe_name, 'last_name': safe_last_name}}
             )
 

Web/templates/edit_item_functions.html

@@ -1,288 +0,0 @@
-<!--
-   Copyright 2025-2026 AIIrondev
-
-   Licensed under the Inventarsystem EULA (Endbenutzer-Lizenzvertrag).
-   See Legal/LICENSE for the full license text.
-   Unauthorized commercial use, SaaS hosting, or removal of branding is prohibited.
-   For commercial licensing inquiries: https://github.com/AIIrondev
--->
-<!-- Edit Item Functions -->
-<script>
-    // Function to check if a file is a video
-    function isVideoFile(filename) {
-        const videoExtensions = ['.mp4', '.mov', '.avi', '.mkv', '.webm', '.flv', '.m4v', '.3gp'];
-        const extension = filename.toLowerCase().substring(filename.lastIndexOf('.'));
-        return videoExtensions.includes(extension);
-    }
-
-    // Load location options for edit modal
-    function loadLocationOptions() {
-        fetch('/get_predefined_locations')
-            .then(response => response.json())
-            .then(data => {
-                const ortSelect = document.getElementById('edit-location');
-                if (ortSelect) {
-                    // Clear existing options except the first one
-                    while (ortSelect.children.length > 1) {
-                        ortSelect.removeChild(ortSelect.lastChild);
-                    }
-                    
-                    // Add new options - data.locations contains the array
-                    data.locations.forEach(location => {
-                        const option = document.createElement('option');
-                        option.value = location;
-                        option.textContent = location;
-                        ortSelect.appendChild(option);
-                    });
-                }
-            })
-            .catch(error => {
-                console.error('Error loading location options:', error);
-            });
-    }
-
-    // Edit modal functions
-    function openEditModal(itemId) {
-        if (typeof openEditModalFromServer === 'function') {
-            openEditModalFromServer(itemId);
-            return;
-        }
-
-        // Find the item data from allItems array
-        const item = allItems.find(i => i._id === itemId);
-        if (!item) {
-            console.error('Item not found:', itemId);
-            return;
-        }
-
-        // Populate the edit form with current item data
-        document.getElementById('edit-item-id').value = item._id;
-        document.getElementById('edit-name').value = item.Name || '';
-        document.getElementById('edit-description').value = item.Beschreibung || '';
-        document.getElementById('edit-code4').value = item.Code_4 || '';
-        document.getElementById('edit-year').value = item.Anschaffungsjahr || '';
-        document.getElementById('edit-cost').value = item.Anschaffungskosten || '';
-
-        // Set reservable status (default to true if undefined)
-        const reservierbarCheckbox = document.getElementById('edit-reservierbar');
-        if (reservierbarCheckbox) {
-            reservierbarCheckbox.checked = item.Reservierbar !== false;
-        }
-
-        // Load location options
-        loadLocationOptions();
-
-        // Set the current location
-        setTimeout(() => {
-            const locationSelect = document.getElementById('edit-location');
-            if (locationSelect && item.Ort) {
-                locationSelect.value = item.Ort;
-            }
-        }, 100);
-
-        // Handle filter arrays - set current values
-        const filter1Array = Array.isArray(item.Filter) ? item.Filter : (item.Filter ? [item.Filter] : []);
-        const filter2Array = Array.isArray(item.Filter2) ? item.Filter2 : (item.Filter2 ? [item.Filter2] : []);
-        const filter3Array = Array.isArray(item.Filter3) ? item.Filter3 : (item.Filter3 ? [item.Filter3] : []);
-
-        // Set filter dropdowns (up to 4 each)
-        for (let i = 1; i <= 4; i++) {
-            // Filter 1
-            const filter1Select = document.getElementById(`edit-filter1-${i}`);
-            if (filter1Select) {
-                filter1Select.value = filter1Array[i-1] || '';
-            }
-            
-            // Filter 2
-            const filter2Select = document.getElementById(`edit-filter2-${i}`);
-            if (filter2Select) {
-                filter2Select.value = filter2Array[i-1] || '';
-            }
-            
-            // Filter 3
-            const filter3Select = document.getElementById(`edit-filter3-${i}`);
-            if (filter3Select) {
-                filter3Select.value = filter3Array[i-1] || '';
-            }
-        }
-
-        // Populate existing images
-        populateExistingImages(item.Images || []);
-
-        // Show the modal
-        document.getElementById('edit-modal').style.display = 'block';
-    }
-
-    function closeEditModal() {
-        document.getElementById('edit-modal').style.display = 'none';
-    }
-    
-    // Function to add new location (for edit modal)
-    function addNewLocation(prefix) {
-        // Use different input IDs based on whether we're in edit mode
-        const inputId = prefix === 'edit' ? 'edit-new-location-input' : 'new-location-input';
-        const selectId = prefix === 'edit' ? 'edit-location' : 'ort';
-        
-        const newLocationInput = document.getElementById(inputId);
-        const newLocation = newLocationInput.value.trim();
-        
-        if (!newLocation) {
-            alert('Bitte geben Sie einen Ort ein.');
-            return;
-        }
-        
-        // Add to dropdown
-        const ortSelect = document.getElementById(selectId);
-        const option = document.createElement('option');
-        option.value = newLocation;
-        option.textContent = newLocation;
-        ortSelect.appendChild(option);
-        ortSelect.value = newLocation;
-        
-        // Hide the input field
-        document.getElementById(prefix + '-new-location-container').style.display = 'none';
-        newLocationInput.value = '';
-        
-        // Save to server
-        fetch('/add_location_value', {
-            method: 'POST',
-            headers: {
-                'Content-Type': 'application/x-www-form-urlencoded',
-            },
-            body: 'value=' + encodeURIComponent(newLocation)
-        })
-        .then(response => response.json())
-        .then(data => {
-            if (!data.success) {
-                console.warn('Failed to save location to server:', data.error);
-            }
-        })
-        .catch(error => {
-            console.error('Error saving location:', error);
-        });
-    }
-    
-    // Function to cancel adding a new location
-    function cancelAddLocation(prefix) {
-        const containerId = prefix === 'edit' ? 'edit-new-location-container' : 'new-location-container';
-        const inputId = prefix === 'edit' ? 'edit-new-location-input' : 'new-location-input';
-        document.getElementById(containerId).style.display = 'none';
-        document.getElementById(inputId).value = '';
-    }
-
-    // Function to populate existing images in edit modal
-    function populateExistingImages(images) {
-        const previewContainer = document.getElementById('edit-image-preview-container');
-        if (!previewContainer) return;
-        
-        previewContainer.innerHTML = '';
-        
-        if (!images || images.length === 0) {
-            previewContainer.innerHTML = '<p>Keine Bilder vorhanden</p>';
-            return;
-        }
-        
-        images.forEach((imageName, index) => {
-            const preview = document.createElement('div');
-            preview.className = 'image-preview-item';
-            
-            const isVideo = isVideoFile(imageName);
-            const mediaHtml = isVideo 
-                ? `<video src="/uploads/${imageName}" style="max-width: 150px; max-height: 150px; object-fit: cover;" controls preload="metadata"></video>`
-                : `<img src="/uploads/${imageName}" alt="Image ${index + 1}" style="max-width: 150px; max-height: 150px; object-fit: cover;">`;
-            
-            preview.innerHTML = `
-                ${mediaHtml}
-                <div class="image-controls">
-                    <button type="button" onclick="removeExistingImage('${imageName}', this)" style="background: #dc3545; color: white; border: none; padding: 5px 10px; border-radius: 3px; cursor: pointer; margin-left: 10px;">Entfernen</button>
-                </div>
-            `;
-            previewContainer.appendChild(preview);
-            
-            // Add hidden input for the image
-            const hiddenInput = document.createElement('input');
-            hiddenInput.type = 'hidden';
-            hiddenInput.name = 'existing_images';
-            hiddenInput.value = imageName;
-            previewContainer.appendChild(hiddenInput);
-        });
-    }
-    
-    // Function to remove an existing image
-    function removeExistingImage(imageName, button) {
-        try {
-            // First, determine context - are we in edit mode or main view?
-            const inEditMode = !!document.getElementById('edit-item-form');
-            
-            // Always remove the preview element (works in both contexts)
-            const previewItem = button.closest('.image-preview-item');
-            if (previewItem) {
-                previewItem.remove();
-            }
-            
-            // If we're in edit mode, handle form inputs
-            if (inEditMode) {
-                // Find and remove the corresponding hidden input in the edit form
-                const editForm = document.getElementById('edit-item-form');
-                
-                if (editForm) {
-                    // Remove from existing images
-                    const existingInputs = editForm.querySelectorAll('input[name="existing_images"]');
-                    existingInputs.forEach(input => {
-                        if (input.value === imageName) {
-                            input.remove();
-                        }
-                    });
-                    
-                    // Add to removed images
-                    const removedInput = document.createElement('input');
-                    removedInput.type = 'hidden';
-                    removedInput.name = 'removed_images';
-                    removedInput.value = imageName;
-                    editForm.appendChild(removedInput);
-                }
-            } else {
-                // In main view, we may need different logic
-                console.log(`Image ${imageName} removed from display in main view`);
-                // Add any main view specific handling here
-            }
-        } catch (error) {
-            console.error(`Error in removeExistingImage: ${error.message}`);
-        }
-    }
-    
-    // Validate file types for image uploads
-    document.addEventListener('DOMContentLoaded', function() {
-        // Check if we're in the edit item context
-        if (!document.getElementById('edit-item-form')) {
-            console.log('Edit item form not found, skipping edit item functions initialization');
-            return; // Exit early if we're not in the edit item context
-        }
-        
-        const imageInput = document.getElementById('edit-new-images');
-        const previewContainer = document.getElementById('edit-image-preview-container');
-        
-        if (imageInput) {
-            imageInput.addEventListener('change', function(e) {
-                // Validate file types before preview
-                const allowedTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/gif',
-                                    'video/mp4', 'video/quicktime', 'video/x-msvideo', 'video/x-matroska',
-                                    'video/webm', 'video/x-flv', 'video/mp4', 'video/3gpp'];
-                const files = this.files;
-                let hasInvalidFile = false;
-                
-                for (let i = 0; i < files.length; i++) {
-                    if (!allowedTypes.includes(files[i].type)) {
-                        hasInvalidFile = true;
-                        // Clear the file input to prevent submission
-                        this.value = '';
-                        alert('Fehler: Datei "' + files[i].name + '" hat ein nicht unterstütztes Format. Erlaubte Formate: JPG, JPEG, PNG, GIF, MP4, MOV, AVI, MKV, WEBM, FLV, M4V, 3GP');
-                        return; // Stop processing
-                    }
-                }
-                
-                // Continue with regular preview handling...
-            });
-        }
-    });
-</script>

Web/templates/edit_library.html

@@ -0,0 +1,509 @@
+<!--
+   Copyright 2025-2026 AIIrondev
+   Licensed under the Inventarsystem EULA.
+-->
+{% extends "base.html" %}
+
+{% block title %}{{ page_title|default('Artikel bearbeiten') }} - Inventarsystem{% endblock %}
+
+{% block content %}
+<style>
+    .edit-container {
+        max-width: 800px;
+        margin: 0 auto;
+        padding: 20px;
+        background-color: var(--ui-surface);
+        border-radius: 8px;
+        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+    }
+
+    .edit-form h1 {
+        color: var(--ui-text);
+        margin-bottom: 30px;
+        text-align: center;
+        font-size: 2em;
+    }
+
+    .form-group {
+        margin-bottom: 20px;
+    }
+
+    .form-group label {
+        display: block;
+        margin-bottom: 5px;
+        font-weight: bold;
+        color: var(--ui-text);
+    }
+
+    .form-group input,
+    .form-group select,
+    .form-group textarea {
+        width: 100%;
+        padding: 10px;
+        border: 1px solid #ddd;
+        border-radius: 4px;
+        font-size: 16px;
+        box-sizing: border-box;
+    }
+
+    .form-group textarea {
+        height: 100px;
+        resize: vertical;
+    }
+
+    .filter-inputs {
+        background-color: var(--ui-surface-soft);
+        padding: 20px;
+        border-radius: 5px;
+        margin: 20px 0;
+    }
+
+    .filter-inputs h3 {
+        color: var(--ui-text);
+        margin-bottom: 15px;
+        font-size: 1.2em;
+    }
+
+    .multi-filter {
+        display: grid;
+        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+        gap: 15px;
+    }
+
+    .filter-dropdown-select {
+        width: 100%;
+        padding: 8px;
+        border: 1px solid #ddd;
+        border-radius: 4px;
+        background-color: white;
+    }
+
+    .isbn-input-group {
+        display: flex;
+        gap: 10px;
+        align-items: center;
+    }
+
+    .isbn-input-group input {
+        flex: 1;
+    }
+
+    .fetch-isbn-button {
+        background-color: #007bff;
+        color: white;
+        border: none;
+        padding: 8px 12px;
+        border-radius: 4px;
+        cursor: pointer;
+        white-space: nowrap;
+        transition: background-color 0.2s ease;
+    }
+
+    .fetch-isbn-button:hover {
+        background-color: #0056b3;
+    }
+
+    /* Scanner Elements */
+    #code4-scanner video, #code4-scanner canvas,
+    #isbn-scanner video, #isbn-scanner canvas {
+        width: 100%;
+        max-width: 640px;
+        height: auto;
+        border-radius: 5px;
+        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+    }
+
+    #code4-scanner canvas, #isbn-scanner canvas {
+        position: absolute;
+        top: 0;
+        left: 0;
+    }
+
+    #code4-scanner, #isbn-scanner {
+        position: relative;
+        overflow: hidden;
+    }
+
+    /* Image Management */
+    .existing-images-grid {
+        display: flex;
+        flex-wrap: wrap;
+        gap: 15px;
+        margin-top: 10px;
+    }
+
+    .existing-image-card {
+        border: 1px solid #ddd;
+        border-radius: 5px;
+        padding: 8px;
+        text-align: center;
+        background: #fff;
+        width: 120px;
+    }
+
+    .existing-image-card img {
+        width: 100%;
+        height: 100px;
+        object-fit: cover;
+        border-radius: 4px;
+    }
+
+    .existing-image-card label {
+        font-size: 0.8em;
+        margin-top: 5px;
+        cursor: pointer;
+        font-weight: normal;
+    }
+
+    .add-new-btn {
+        background-color: #007bff;
+        color: white;
+        border: none;
+        padding: 5px 10px;
+        border-radius: 3px;
+        cursor: pointer;
+        margin-top: 5px;
+        font-size: 12px;
+    }
+
+    .submit-button {
+        background-color: #28a745;
+        color: white;
+        border: none;
+        padding: 15px 30px;
+        border-radius: 5px;
+        font-size: 18px;
+        font-weight: bold;
+        cursor: pointer;
+        width: 100%;
+        margin-top: 20px;
+        transition: background-color 0.2s ease;
+    }
+
+    .submit-button:hover {
+        background-color: #218838;
+    }
+
+    .edit-new-location-container {
+        display: none;
+        margin-top: 10px;
+    }
+</style>
+
+<div class="edit-container">
+    <div class="edit-form">
+        <h1>{{ page_title|default('Artikel bearbeiten') }}</h1>
+        <form method="POST" action="{{ url_for('item_edit', id=item._id) }}" enctype="multipart/form-data">
+            <input type="hidden" name="item_id" value="{{ item._id }}">
+
+            {% if show_library_features %}
+            <!-- ================= LIBRARY SPECIFIC FIELDS ================= -->
+            <div class="form-group">
+                <label for="isbn">ISBN / Barcode:</label>
+                <div class="isbn-input-group">
+                    <input type="text" id="isbn" name="isbn" value="{{ item.ISBN|default('') }}" placeholder="ISBN oder Barcode eingeben...">
+                    <button type="button" id="scan-isbn-btn" class="fetch-isbn-button">Barcode scannen</button>
+                    <button type="button" class="fetch-isbn-button" onclick="fetchBookInfo('edit')">Informationen abrufen</button>
+                </div>
+                <div id="isbn-scanner" style="width:100%; max-width:520px; display:none; margin-top:10px;"></div>
+                <small id="isbn-scan-status" style="display:block; color:#666; margin-top:6px;"></small>
+                <div id="book-info-container"></div>
+            </div>
+
+            <div class="filter-inputs" style="margin-bottom: 20px;">
+                <h3>Medientyp</h3>
+                <div class="form-group">
+                    <select name="item_type_input" id="item_type_input">
+                        <option value="Buch" {% if item.ItemType == 'Buch' %}selected{% endif %}>Buch</option>
+                        <option value="Schulbuch" {% if item.ItemType == 'Schulbuch' %}selected{% endif %}>Schulbuch</option>
+                        <option value="CD" {% if item.ItemType == 'CD' %}selected{% endif %}>CD</option>
+                        <option value="DVD" {% if item.ItemType == 'DVD' %}selected{% endif %}>DVD</option>
+                        <option value="Sonstiges" {% if item.ItemType == 'Sonstiges' %}selected{% endif %}>Sonstiges</option>
+                    </select>
+                </div>
+                <h3>Bibliotheks-Kategorie:</h3>
+                <div class="form-group">
+                    <input type="text" name="library_category" id="library_category" value="{{ item.library_category|default('') }}" placeholder="z.B. Belletristik, Sachbücher, etc.">
+                </div>
+            </div>
+            {% endif %}
+
+            <!-- ================= COMMON CORE FIELDS ================= -->
+            <div class="form-group">
+                <label for="name">Name / Titel:</label>
+                <input type="text" id="name" name="name" value="{{ item.Name|default('') }}" required>
+            </div>
+
+            <div class="form-group">
+                <label for="ort">Ort / Standort:</label>
+                <select id="ort" name="ort" data-selected="{{ item.Ort|default('') }}" required>
+                    <option value="">-- Bitte Ort auswählen --</option>
+                    {% if item.Ort %}
+                    <option value="{{ item.Ort }}" selected>{{ item.Ort }}</option>
+                    {% endif %}
+                </select>
+                <button type="button" class="add-new-btn" id="add-new-location-btn">Neuen Ort hinzufügen</button>
+                <div id="new-location-container" class="edit-new-location-container">
+                    <input type="text" id="new-location-input" placeholder="Neuen Ort eingeben">
+                    <button type="button" onclick="addNewLocation()">Hinzufügen</button>
+                    <button type="button" onclick="cancelAddLocation()">Abbrechen</button>
+                </div>
+            </div>
+
+            <div class="form-group">
+                <label for="beschreibung">Beschreibung:</label>
+                <textarea id="beschreibung" name="beschreibung" required>{{ item.Beschreibung|default('') }}</textarea>
+            </div>
+
+            <div class="form-group" id="primary_code_group">
+                <label for="code_4">Basis-Code (Haupt-Barcode)</label>
+                <div style="display: flex; gap: 10px;">
+                    <input type="text" id="code_4" name="code_4" class="form-control" value="{{ item.Code_4|default('') }}" required>
+                    <button type="button" id="scan-code4-btn" class="fetch-isbn-button">Barcode scannen</button>
+                </div>
+                <div id="code4-scanner" style="display:none; margin-top: 10px;"></div>
+                <small id="code4-scan-status" class="form-text text-muted"></small>
+            </div>
+
+            <div class="form-group" id="individual_codes_group">
+                <label for="individual_codes">Weitere Einzelcodes der Gruppe (je Zeile ein Code)</label>
+                <textarea id="individual_codes" name="individual_codes" rows="4" class="form-control" placeholder="z.B.&#10;ABC-001&#10;ABC-002">{{ item.IndividualCodes|default('') }}</textarea>
+                <small style="display:block; color:#666; margin-top: 5px;">Der Basis-Code steht oben. Alle weiteren Gruppenmitglieder werden hier untereinander aufgeführt.</small>
+            </div>
+
+            {% if not show_library_features %}
+            <!-- ================= SYSTEM FILTERS 1-3 (INVENTORY / OTHER ITEMS ONLY) ================= -->
+            <div class="filter-inputs">
+                <h3>Unterrichtsfach (Filter 1):</h3>
+                <div class="multi-filter">
+                    {% for idx in range(4) %}
+                    <div class="form-group">
+                        <label for="filter1-{{ idx + 1 }}">Wert {{ idx + 1 }}:</label>
+                        <select id="filter1-{{ idx + 1 }}" name="filter" class="filter-dropdown-select" data-selected="{{ item.Filter[idx] if item.Filter and item.Filter|length > idx else '' }}">
+                            <option value="">-- Optional --</option>
+                        </select>
+                    </div>
+                    {% endfor %}
+                </div>
+
+                <h3>Jahrgangsstufe (Filter 2):</h3>
+                <div class="multi-filter">
+                    {% for idx in range(4) %}
+                    <div class="form-group">
+                        <label for="filter2-{{ idx + 1 }}">Wert {{ idx + 1 }}:</label>
+                        <select id="filter2-{{ idx + 1 }}" name="filter2" class="filter-dropdown-select" data-selected="{{ item.Filter2[idx] if item.Filter2 and item.Filter2|length > idx else '' }}">
+                            <option value="">-- Optional --</option>
+                        </select>
+                    </div>
+                    {% endfor %}
+                </div>
+
+                <h3>Schlagwort (Filter 3):</h3>
+                <div class="multi-filter">
+                    {% for idx in range(4) %}
+                    <div class="form-group">
+                        <label for="filter3-{{ idx + 1 }}">Wert {{ idx + 1 }}:</label>
+                        <input type="text" id="filter3-{{ idx + 1 }}" name="filter3" value="{{ item.Filter3[idx] if item.Filter3 and item.Filter3|length > idx else '' }}">
+                    </div>
+                    {% endfor %}
+                </div>
+            </div>
+            {% endif %}
+
+            <!-- ================= DATES & FINANCIALS ================= -->
+            <div class="form-group">
+                <label for="anschaffungsjahr">Anschaffungsjahr:</label>
+                <input type="date" id="anschaffungsjahr" name="anschaffungsjahr" value="{{ item.Anschaffungsjahr|default('') }}">
+            </div>
+            <div class="form-group">
+                <label for="anschaffungskosten">Anschaffungskosten (€):</label>
+                <input type="text" id="anschaffungskosten" name="anschaffungskosten" value="{{ item.Anschaffungskosten|default('') }}">
+            </div>
+
+            {% if not show_library_features %}
+            <!-- ================= INVENTORY IMAGE MANAGEMENT ================= -->
+            <div class="form-group">
+                <label>Bestehende Bilder behalten:</label>
+                {% if item.Images and item.Images|length > 0 %}
+                <div class="existing-images-grid">
+                    {% for img in item.Images %}
+                    <div class="existing-image-card">
+                        <img src="{{ url_for('uploaded_file', filename=img) }}" alt="Bild">
+                        <label>
+                            <input type="checkbox" name="existing_images" value="{{ img }}" checked>
+                            Behalten
+                        </label>
+                    </div>
+                    {% endfor %}
+                </div>
+                {% else %}
+                <p style="color:#777; font-size:0.9em;">Keine Bilder vorhanden.</p>
+                {% endif %}
+
+                <label for="images" style="margin-top:15px;">Neue Bilder/Videos hinzufügen:</label>
+                <input type="file" id="images" name="images" accept=".jpg, .jpeg, .png, .gif, .mp4, .mov, .avi, .mkv, .webm" multiple>
+            </div>
+            {% endif %}
+
+            <div class="form-group">
+                <label for="reservierbar" style="display:inline-block; width:auto; margin-right:10px;">Reservierbar:</label>
+                <input type="checkbox" id="reservierbar" name="reservierbar" style="width:auto;" {% if item.Reservierbar %}checked{% endif %}>
+            </div>
+
+            <button type="submit" class="submit-button">Änderungen speichern</button>
+        </form>
+    </div>
+</div>
+
+<script src="https://cdn.jsdelivr.net/npm/@ericblade/quagga2/dist/quagga.js"></script>
+<script>
+    let scannerRunning = false;
+    let activeScannerCallback = null;
+    let code4LastScanned = '';
+    let code4LastScannedAt = 0;
+
+    function loadAndSelectFilterValues(filterNumber) {
+        fetch(`/get_predefined_filter_values/${filterNumber}`)
+            .then(res => res.json())
+            .then(data => {
+                for (let i = 1; i <= 4; i++) {
+                    const select = document.getElementById(`filter${filterNumber}-${i}`);
+                    if (!select) continue;
+
+                    const selectedValue = select.getAttribute('data-selected') || '';
+
+                    data.values.forEach(val => {
+                        if (!val || String(val).trim() === '') return;
+                        const opt = document.createElement('option');
+                        opt.value = val;
+                        opt.textContent = val;
+                        select.appendChild(opt);
+                    });
+
+                    if (selectedValue && !Array.from(select.options).some(o => o.value === selectedValue)) {
+                        const customOpt = document.createElement('option');
+                        customOpt.value = selectedValue;
+                        customOpt.textContent = selectedValue;
+                        select.appendChild(customOpt);
+                    }
+
+                    select.value = selectedValue;
+                }
+            })
+            .catch(err => console.error(`Error loading Filter ${filterNumber}:`, err));
+    }
+
+    function loadLocationOptions() {
+        fetch('/get_predefined_locations')
+            .then(res => res.json())
+            .then(data => {
+                const select = document.getElementById('ort');
+                if (!select) return;
+                const currentVal = select.getAttribute('data-selected') || select.value;
+
+                data.locations.forEach(loc => {
+                    if (!Array.from(select.options).some(o => o.value === loc)) {
+                        const opt = document.createElement('option');
+                        opt.value = loc;
+                        opt.textContent = loc;
+                        select.appendChild(opt);
+                    }
+                });
+
+                select.value = currentVal;
+            })
+            .catch(err => console.error('Error loading locations:', err));
+    }
+
+    function addNewLocation() {
+        const input = document.getElementById('new-location-input');
+        const val = input.value.trim();
+        if (!val) return;
+        const select = document.getElementById('ort');
+        const opt = document.createElement('option');
+        opt.value = val;
+        opt.textContent = val;
+        opt.selected = true;
+        select.appendChild(opt);
+        document.getElementById('new-location-container').style.display = 'none';
+        input.value = '';
+    }
+
+    function cancelAddLocation() {
+        document.getElementById('new-location-container').style.display = 'none';
+        document.getElementById('new-location-input').value = '';
+    }
+
+    function runEngineInitialization(targetSelector, activeCallback, completionMsg, errorStatusSetter) {
+        if (scannerRunning) { Quagga.stop(); scannerRunning = false; }
+        activeScannerCallback = activeCallback;
+
+        Quagga.init({
+            inputStream: { name: "Live", type: "LiveStream", target: document.querySelector(targetSelector), constraints: { width: 640, height: 480, facingMode: "environment" } },
+            decoder: { readers: ["code_128_reader", "ean_reader", "code_39_reader", "upc_reader"] }
+        }, function(err) {
+            if (err) { errorStatusSetter("Kamera-Fehler.", true); return; }
+            Quagga.start(); scannerRunning = true; errorStatusSetter(completionMsg, false);
+        });
+    }
+
+    function killScannerHardware() {
+        if (!scannerRunning) return;
+        Quagga.stop(); scannerRunning = false; activeScannerCallback = null;
+    }
+
+    Quagga.onDetected(function(data) {
+        if (!data || !data.codeResult || !data.codeResult.code) return;
+        if (typeof activeScannerCallback === "function") activeScannerCallback(String(data.codeResult.code).trim());
+    });
+
+    function startCode4Scanner() {
+        const scannerBox = document.getElementById('code4-scanner');
+        const scanBtn = document.getElementById('scan-code4-btn');
+        const baseField = document.getElementById('code_4');
+        const indArea = document.getElementById('individual_codes');
+
+        if (scannerBox.style.display !== 'none') {
+            killScannerHardware(); scannerBox.style.display = 'none'; scanBtn.textContent = 'Barcode scannen'; return;
+        }
+
+        scannerBox.style.display = 'block'; scanBtn.textContent = 'Scanner stoppen';
+        runEngineInitialization('#code4-scanner', function(decodedText) {
+            const now = Date.now();
+            if (decodedText === code4LastScanned && (now - code4LastScannedAt) < 1500) return;
+            code4LastScanned = decodedText; code4LastScannedAt = now;
+
+            killScannerHardware(); scannerBox.style.display = 'none'; scanBtn.textContent = 'Barcode scannen';
+
+            if (!baseField.value.trim()) {
+                baseField.value = decodedText;
+            } else {
+                let codes = indArea.value.split('\n').map(c => c.trim()).filter(c => c);
+                if (!codes.includes(decodedText) && baseField.value.trim() !== decodedText) {
+                    codes.push(decodedText);
+                    indArea.value = codes.join('\n');
+                }
+            }
+        }, 'Scanner läuft...', msg => { document.getElementById('code4-scan-status').textContent = msg; });
+    }
+
+    document.addEventListener('DOMContentLoaded', function() {
+        loadLocationOptions();
+
+        // Load Filter options if elements exist on page
+        if (document.getElementById('filter1-1')) {
+            loadAndSelectFilterValues(1);
+            loadAndSelectFilterValues(2);
+        }
+
+        const scanCodeBtn = document.getElementById('scan-code4-btn');
+        if (scanCodeBtn) scanCodeBtn.addEventListener('click', startCode4Scanner);
+
+        const addLocBtn = document.getElementById('add-new-location-btn');
+        if (addLocBtn) addLocBtn.addEventListener('click', () => {
+            const c = document.getElementById('new-location-container');
+            c.style.display = c.style.display === 'none' ? 'block' : 'none';
+        });
+    });
+</script>
+{% endblock %}

Web/templates/library.html

@@ -1,752 +0,0 @@
-{% extends "base.html" %}
-
-{% block title %}Bibliothek - {{ APP_VERSION }}{% endblock %}
-
-{% block content %}
-<div class="content-container">
-    <!-- Header Section -->
-    <div class="header-section">
-        <div class="header-title-group">
-            <h1>📚 Bibliothek</h1>
-            <p class="subtitle">Bücher, CDs und weitere Medien</p>
-        </div>
-    </div>
-
-    <!-- Search & Filter Section -->
-    <div class="search-filter-section">
-        <input type="text" id="searchInput" placeholder="Nach Titel, Autor, ISBN suchen..." class="search-input">
-        
-        <div class="filter-group" id="filterGroup">
-            <button class="filter-btn" id="filterBtn" aria-expanded="false" aria-label="Filter öffnen">
-                🔍 Filter <span class="filter-arrow">▼</span>
-            </button>
-            <div class="filter-dropdown" id="filterDropdown" style="display: none;">
-                <div class="filter-section">
-                    <h4>Medientyp</h4>
-                    <div class="filter-options">
-                        <label><input type="checkbox" class="filter-checkbox" data-filter="type" value="book"> Buch</label>
-                        <label><input type="checkbox" class="filter-checkbox" data-filter="type" value="cd"> CD/DVD</label>
-                        <label><input type="checkbox" class="filter-checkbox" data-filter="type" value="other"> Sonstige</label>
-                    </div>
-                </div>
-                <div class="filter-section">
-                    <h4>Status</h4>
-                    <div class="filter-options">
-                        <label><input type="checkbox" class="filter-checkbox" data-filter="status" value="available"> Verfügbar</label>
-                        <label><input type="checkbox" class="filter-checkbox" data-filter="status" value="borrowed"> Ausgeliehen</label>
-                        <label><input type="checkbox" class="filter-checkbox" data-filter="status" value="reserved"> Reserviert</label>
-                    </div>
-                </div>
-                <button id="clearFiltersBtn" class="button">Filter zurücksetzen</button>
-            </div>
-        </div>
-
-        <!-- Barcode Scanner -->
-        <button id="scannerBtn" class="scan-button" aria-expanded="false" aria-label="Scanner öffnen">
-            📱 Scanner <span class="scanner-arrow">▼</span>
-        </button>
-    </div>
-
-    <!-- Scanner Panel -->
-    <div id="qrContainer" class="qr-container" style="display: none;">
-        <div id="qr-reader" style="width: auto; height: 300px;"></div>
-        <span id="qr-result" style="display: none;"></span>
-    </div>
-
-    <!-- Table Header (only in table mode) -->
-    <div class="library-table-wrapper">
-    <div class="table-header" id="tableHeader" style="display: none;">
-        <div class="table-row">
-            <div class="table-cell title-cell">Titel</div>
-            <div class="table-cell author-cell">Autor/Künstler</div>
-            <div class="table-cell isbn-cell">ISBN/Code</div>
-            <div class="table-cell type-cell">Typ</div>
-            <div class="table-cell status-cell">Status</div>
-            <div class="table-cell actions-cell">Aktionen</div>
-        </div>
-    </div>
-
-    <!-- Items Container -->
-    <div id="itemsContainer" class="items-container">
-        {% if library_items %}
-            {% for item in library_items %}
-                <div class="item-card library-item" data-item-id="{{ item._id }}" data-type="{{ item.get('ItemType', 'book') }}" data-status="{{ 'borrowed' if item.get('Verfuegbar') == False else 'available' }}">
-                    <!-- Card Mode View -->
-                    <div class="item-content card-mode">
-                        <div class="item-image-wrapper">
-                            {% if item.get('Image') %}
-                                <img src="/uploads/{{ item.Image }}" alt="{{ item.Name }}" class="item-image">
-                            {% else %}
-                                <div class="placeholder-image">📚</div>
-                            {% endif %}
-                        </div>
-                        
-                        <div class="item-details">
-                            <h3 class="item-name">{{ item.Name }}</h3>
-                            
-                            {% if item.get('Author') %}
-                                <p class="item-author">Von: {{ item.Author }}</p>
-                            {% endif %}
-                            
-                            {% if item.get('ISBN') %}
-                                <p class="item-isbn">ISBN: {{ item.ISBN }}</p>
-                            {% endif %}
-                            
-                            <div class="item-meta">
-                                <span class="item-type">{{ item.get('ItemType', 'Medium') }}</span>
-                                <span class="item-status {% if item.get('Verfuegbar') == False %}borrowed{% else %}available{% endif %}">
-                                    {% if item.get('Verfuegbar') == False %}Ausgeliehen{% else %}Verfügbar{% endif %}
-                                </span>
-                            </div>
-                        </div>
-                    </div>
-
-                    <!-- Table Mode View -->
-                    <div class="item-content table-mode" style="display: none;">
-                        <div class="table-row">
-                            <div class="table-cell title-cell">
-                                <span class="descriptor">Titel:</span>
-                                <span class="value">{{ item.Name }}</span>
-                            </div>
-                            <div class="table-cell author-cell">
-                                <span class="descriptor">Autor:</span>
-                                <span class="value">{{ item.get('Author', '—') }}</span>
-                            </div>
-                            <div class="table-cell isbn-cell">
-                                <span class="descriptor">ISBN:</span>
-                                <span class="value">{{ item.get('ISBN', '—') }}</span>
-                            </div>
-                            <div class="table-cell type-cell">
-                                <span class="descriptor">Typ:</span>
-                                <span class="value">{{ item.get('ItemType', 'Medium') }}</span>
-                            </div>
-                            <div class="table-cell status-cell">
-                                <span class="descriptor">Status:</span>
-                                <span class="value {% if item.get('Verfuegbar') == False %}borrowed{% else %}available{% endif %}">
-                                    {% if item.get('Verfuegbar') == False %}Ausgeliehen{% else %}Verfügbar{% endif %}
-                                </span>
-                            </div>
-                            <div class="table-cell actions-cell">
-                                <button class="action-button details-btn" data-item-id="{{ item._id }}">Details</button>
-                            </div>
-                        </div>
-                    </div>
-
-                    <!-- Action Buttons (Card Mode) -->
-                    <div class="item-actions card-mode" style="display: flex;">
-                        <button class="action-button details-btn" data-item-id="{{ item._id }}">Details</button>
-                        {% if item.get('Verfuegbar') == True %}
-                            <button class="action-button borrow-btn" data-item-id="{{ item._id }}">Ausleihen</button>
-                        {% else %}
-                            <button class="action-button return-btn" data-item-id="{{ item._id }}" disabled>Ausgeliehen</button>
-                        {% endif %}
-                    </div>
-                </div>
-            {% endfor %}
-        {% else %}
-            <div class="empty-state">
-                <p>Keine Bibliotheks-Medien gefunden</p>
-            </div>
-        {% endif %}
-    </div>
-    </div>
-</div>
-
-<!-- Detail Modal -->
-<div id="detailModal" class="modal" style="display: none;">
-    <div class="modal-content">
-        <button class="modal-close" aria-label="Schließen">✕</button>
-        
-        <div class="modal-body" id="modalBody">
-            <!-- Filled by JavaScript -->
-        </div>
-    </div>
-</div>
-
-<!-- Borrow Modal -->
-<div id="borrowModal" class="modal" style="display: none;">
-    <div class="modal-content">
-        <h2>Ausleihen</h2>
-        <form id="borrowForm">
-            <input type="hidden" id="borrowItemId" name="item_id">
-            
-            <div class="form-group">
-                <label for="studentIdInput">Schülerausweis-ID (optional):</label>
-                <input type="text" id="studentIdInput" name="student_id" placeholder="Ausweis scannen oder eingeben" class="form-input">
-            </div>
-            
-            <div class="form-group">
-                <label for="borrowDaysInput">Ausleih-Dauer (Tage):</label>
-                <input type="number" id="borrowDaysInput" name="borrow_days" min="1" max="365" class="form-input" value="14">
-            </div>
-            
-            <div class="form-actions">
-                <button type="submit" class="button primary-button">Ausleihen</button>
-                <button type="button" class="button cancel-button" onclick="document.getElementById('borrowModal').style.display='none'">Abbrechen</button>
-            </div>
-        </form>
-    </div>
-</div>
-<script src="https://cdn.jsdelivr.net/npm/@ericblade/quagga2/dist/quagga.js"></script>
-<script>
-// View mode persistence
-const LIBRARY_VIEW_MODE_KEY = 'inventarLibraryViewMode';
-const MOBILE_LIBRARY_MAX_WIDTH = 900;
-const MOBILE_LIBRARY_MIN_ITEMS = 24;
-
-function isMobileViewport() {
-    return window.matchMedia(`(max-width: ${MOBILE_LIBRARY_MAX_WIDTH}px)`).matches;
-}
-
-function setViewMode(mode) {
-    localStorage.setItem(LIBRARY_VIEW_MODE_KEY, mode);
-    const container = document.getElementById('itemsContainer');
-    const tableHeader = document.getElementById('tableHeader');
-    const renderedItems = Array.from(container.querySelectorAll('.item-card'));
-    const virtualizationState = window.mobileLibraryVirtualizationState || null;
-    const detachedItems = virtualizationState && virtualizationState.active && Array.isArray(virtualizationState.items)
-        ? virtualizationState.items.filter(item => !container.contains(item))
-        : [];
-    const items = [...renderedItems, ...detachedItems.filter(item => !container.contains(item))];
-    
-    items.forEach(item => {
-        const cardContent = item.querySelector('.item-content.card-mode');
-        const cardActions = item.querySelector('.item-actions.card-mode');
-        const tableContent = item.querySelector('.item-content.table-mode');
-        
-        if (mode === 'table') {
-            if (cardContent) cardContent.style.display = 'none';
-            if (cardActions) cardActions.style.display = 'none';
-            if (tableContent) tableContent.style.display = 'block';
-        } else {
-            if (cardContent) cardContent.style.display = 'flex';
-            if (cardActions) cardActions.style.display = 'flex';
-            if (tableContent) tableContent.style.display = 'none';
-        }
-    });
-    
-    tableHeader.style.display = mode === 'table' ? 'block' : 'none';
-    
-    document.getElementById('viewModeToggle').classList.toggle('open', mode === 'table');
-}
-
-function initMobileWindowedLibraryLoading() {
-    const container = document.getElementById('itemsContainer');
-    if (!container) {
-        return;
-    }
-
-    if (!window.mobileLibraryVirtualizationState) {
-        window.mobileLibraryVirtualizationState = {
-            active: false,
-            items: [],
-            topSpacer: null,
-            bottomSpacer: null,
-            averageItemHeight: Math.max(Math.round(window.innerHeight * 0.35), 230),
-            lastStart: -1,
-            lastEnd: -1,
-            framePending: false,
-            scrollListener: null,
-            resizeListener: null,
-            initialized: false
-        };
-    }
-    const state = window.mobileLibraryVirtualizationState;
-
-    function restoreAllImages() {
-        state.items.forEach(item => {
-            const image = item.querySelector('img.item-image');
-            if (!image) {
-                return;
-            }
-
-            const originalSrc = image.dataset.mobileSrc || '';
-            if (!image.getAttribute('src') && originalSrc) {
-                image.setAttribute('src', originalSrc);
-            }
-        });
-    }
-
-    function updateImageMemory(startIndex, endIndex) {
-        const imageBuffer = 4;
-        state.items.forEach((item, index) => {
-            const image = item.querySelector('img.item-image');
-            if (!image) {
-                return;
-            }
-
-            if (!image.dataset.mobileSrc) {
-                image.dataset.mobileSrc = image.getAttribute('src') || '';
-            }
-            image.loading = 'lazy';
-            image.decoding = 'async';
-
-            const shouldKeepLoaded = index >= startIndex - imageBuffer && index < endIndex + imageBuffer;
-            if (shouldKeepLoaded) {
-                if (!image.getAttribute('src') && image.dataset.mobileSrc) {
-                    image.setAttribute('src', image.dataset.mobileSrc);
-                }
-                return;
-            }
-
-            if (image.getAttribute('src')) {
-                image.removeAttribute('src');
-            }
-        });
-    }
-
-    function renderVisibleWindow() {
-        if (!state.active || !state.topSpacer || !state.bottomSpacer) {
-            return;
-        }
-
-        const viewportHeight = window.innerHeight || 800;
-        const scrollTop = window.scrollY || window.pageYOffset || 0;
-        const renderBuffer = viewportHeight * 1.5;
-
-        let startIndex = Math.max(0, Math.floor((scrollTop - renderBuffer) / state.averageItemHeight));
-        let endIndex = Math.min(state.items.length, Math.ceil((scrollTop + viewportHeight + renderBuffer) / state.averageItemHeight));
-
-        if (endIndex - startIndex < 14) {
-            endIndex = Math.min(state.items.length, startIndex + 14);
-        }
-
-        if (startIndex === state.lastStart && endIndex === state.lastEnd) {
-            return;
-        }
-
-        state.lastStart = startIndex;
-        state.lastEnd = endIndex;
-
-        while (state.topSpacer.nextSibling && state.topSpacer.nextSibling !== state.bottomSpacer) {
-            state.topSpacer.nextSibling.remove();
-        }
-
-        const fragment = document.createDocumentFragment();
-        for (let index = startIndex; index < endIndex; index += 1) {
-            fragment.appendChild(state.items[index]);
-        }
-        container.insertBefore(fragment, state.bottomSpacer);
-
-        let measuredHeightSum = 0;
-        let measuredCount = 0;
-        for (let index = startIndex; index < endIndex; index += 1) {
-            const height = state.items[index].getBoundingClientRect().height;
-            if (height > 0) {
-                measuredHeightSum += height;
-                measuredCount += 1;
-            }
-        }
-
-        if (measuredCount > 0) {
-            const measuredAverage = measuredHeightSum / measuredCount;
-            state.averageItemHeight = Math.round((state.averageItemHeight * 3 + measuredAverage) / 4);
-        }
-
-        state.topSpacer.style.height = `${Math.max(0, startIndex * state.averageItemHeight)}px`;
-        state.bottomSpacer.style.height = `${Math.max(0, (state.items.length - endIndex) * state.averageItemHeight)}px`;
-        updateImageMemory(startIndex, endIndex);
-    }
-
-    function scheduleWindowRender() {
-        if (!state.active || state.framePending) {
-            return;
-        }
-        state.framePending = true;
-        requestAnimationFrame(() => {
-            state.framePending = false;
-            renderVisibleWindow();
-        });
-    }
-
-    function activateVirtualization() {
-        if (state.active) {
-            return;
-        }
-
-        if (!Array.isArray(state.items) || state.items.length === 0) {
-            state.items = Array.from(container.querySelectorAll('.library-item'));
-        }
-        if (state.items.length <= MOBILE_LIBRARY_MIN_ITEMS) {
-            return;
-        }
-
-        state.topSpacer = document.createElement('div');
-        state.topSpacer.className = 'mobile-window-spacer top';
-        state.bottomSpacer = document.createElement('div');
-        state.bottomSpacer.className = 'mobile-window-spacer bottom';
-
-        state.items.forEach(item => item.remove());
-        container.appendChild(state.topSpacer);
-        container.appendChild(state.bottomSpacer);
-
-        state.lastStart = -1;
-        state.lastEnd = -1;
-        state.framePending = false;
-        state.active = true;
-
-        if (!state.scrollListener) {
-            state.scrollListener = () => scheduleWindowRender();
-            window.addEventListener('scroll', state.scrollListener, { passive: true });
-        }
-
-        scheduleWindowRender();
-    }
-
-    function deactivateVirtualization() {
-        if (!state.active) {
-            if (!Array.isArray(state.items) || state.items.length === 0) {
-                state.items = Array.from(container.querySelectorAll('.library-item'));
-            }
-            return;
-        }
-
-        if (state.scrollListener) {
-            window.removeEventListener('scroll', state.scrollListener);
-            state.scrollListener = null;
-        }
-
-        if (state.topSpacer && state.topSpacer.parentNode === container) {
-            state.topSpacer.remove();
-        }
-        if (state.bottomSpacer && state.bottomSpacer.parentNode === container) {
-            state.bottomSpacer.remove();
-        }
-
-        const fragment = document.createDocumentFragment();
-        state.items.forEach(item => fragment.appendChild(item));
-        container.appendChild(fragment);
-
-        restoreAllImages();
-
-        state.topSpacer = null;
-        state.bottomSpacer = null;
-        state.lastStart = -1;
-        state.lastEnd = -1;
-        state.framePending = false;
-        state.active = false;
-
-        const currentMode = localStorage.getItem(LIBRARY_VIEW_MODE_KEY) || 'card';
-        setViewMode(currentMode);
-    }
-
-    function syncVirtualizationWithViewport() {
-        if (!Array.isArray(state.items) || state.items.length === 0) {
-            state.items = Array.from(container.querySelectorAll('.library-item'));
-        }
-
-        const shouldVirtualize = isMobileViewport() && state.items.length > MOBILE_LIBRARY_MIN_ITEMS;
-        if (shouldVirtualize) {
-            activateVirtualization();
-            scheduleWindowRender();
-        } else {
-            deactivateVirtualization();
-        }
-    }
-
-    if (!state.initialized) {
-        state.resizeListener = () => syncVirtualizationWithViewport();
-        window.addEventListener('resize', state.resizeListener, { passive: true });
-        state.initialized = true;
-    }
-
-    syncVirtualizationWithViewport();
-}
-
-// Initialize view mode
-document.addEventListener('DOMContentLoaded', function() {
-    const savedMode = localStorage.getItem(LIBRARY_VIEW_MODE_KEY) || 'card';
-    setViewMode(savedMode);
-    
-    document.getElementById('viewModeToggle').addEventListener('click', function() {
-        const currentMode = localStorage.getItem(LIBRARY_VIEW_MODE_KEY) || 'card';
-        const newMode = currentMode === 'card' ? 'table' : 'card';
-        setViewMode(newMode);
-    });
-    
-    // Details button handlers
-    document.querySelectorAll('.details-btn').forEach(btn => {
-        btn.addEventListener('click', function(e) {
-            e.preventDefault();
-            const itemId = this.dataset.itemId;
-            fetch(`/get_item_details/${itemId}`)
-                .then(r => r.json())
-                .then(data => {
-                    if (data.success) {
-                        displayLibraryItemDetail(data.item);
-                        document.getElementById('detailModal').style.display = 'flex';
-                    }
-                });
-        });
-    });
-    
-    // Borrow button handlers
-    document.querySelectorAll('.borrow-btn').forEach(btn => {
-        btn.addEventListener('click', function() {
-            document.getElementById('borrowItemId').value = this.dataset.itemId;
-            document.getElementById('borrowModal').style.display = 'flex';
-        });
-    });
-    
-    // Borrow form submit
-    document.getElementById('borrowForm').addEventListener('submit', function(e) {
-        e.preventDefault();
-        const itemId = document.getElementById('borrowItemId').value;
-        const studentId = document.getElementById('studentIdInput').value || null;
-        const borrowDays = document.getElementById('borrowDaysInput').value || 14;
-        
-        fetch('/borrow_item', {
-            method: 'POST',
-            headers: {'Content-Type': 'application/json'},
-            body: JSON.stringify({
-                item_id: itemId,
-                student_id: studentId,
-                borrow_days: borrowDays
-            })
-        })
-        .then(r => r.json())
-        .then(data => {
-            if (data.success) {
-                alert('Erfolgreich ausgeliehen!');
-                location.reload();
-            } else {
-                alert('Fehler: ' + data.message);
-            }
-        });
-    });
-    
-    // Modal close handlers
-    document.querySelectorAll('.modal-close').forEach(btn => {
-        btn.addEventListener('click', function() {
-            this.closest('.modal').style.display = 'none';
-        });
-    });
-    
-    // Close modals on outside click
-    document.querySelectorAll('.modal').forEach(modal => {
-        modal.addEventListener('click', function(e) {
-            if (e.target === this) this.style.display = 'none';
-        });
-    });
-
-    initMobileWindowedLibraryLoading();
-});
-
-function displayLibraryItemDetail(item) {
-    const modalBody = document.getElementById('modalBody');
-    const returnBtn = item.Verfuegbar === false ? `<button class="action-button return-btn" onclick="returnItem('${item._id}')">Zurückgeben</button>` : '';
-    const borrowBtn = item.Verfuegbar === true ? `<button class="action-button borrow-btn" onclick="openBorrowModal('${item._id}')">Ausleihen</button>` : '';
-    
-    modalBody.innerHTML = `
-        <h2>${item.Name}</h2>
-        <div class="detail-content">
-            ${item.Image ? `<img src="/uploads/${item.Image}" alt="${item.Name}" style="max-width: 200px; margin-bottom: 20px;">` : ''}
-            <p><strong>Autor:</strong> ${item.Author || '—'}</p>
-            <p><strong>ISBN:</strong> ${item.ISBN || '—'}</p>
-            <p><strong>Typ:</strong> ${item.ItemType || 'Medium'}</p>
-            <p><strong>Status:</strong> ${item.Verfuegbar === false ? 'Ausgeliehen' : 'Verfügbar'}</p>
-            ${item.User ? `<p><strong>Ausgeliehen von:</strong> ${item.User}</p>` : ''}
-            ${item.Beschreibung ? `<p><strong>Beschreibung:</strong> ${item.Beschreibung}</p>` : ''}
-            <div class="modal-actions">
-                ${borrowBtn}
-                ${returnBtn}
-            </div>
-        </div>
-    `;
-}
-
-function openBorrowModal(itemId) {
-    document.getElementById('borrowItemId').value = itemId;
-    document.getElementById('borrowModal').style.display = 'flex';
-    document.getElementById('detailModal').style.display = 'none';
-}
-
-function returnItem(itemId) {
-    if (confirm('Wirklich zurückgeben?')) {
-        fetch('/return_item', {
-            method: 'POST',
-            headers: {'Content-Type': 'application/json'},
-            body: JSON.stringify({item_id: itemId})
-        })
-        .then(r => r.json())
-        .then(data => {
-            if (data.success) {
-                alert('Erfolgreich zurückgegeben!');
-                location.reload();
-            }
-        });
-    }
-}
-
-// Filter dropdown toggle with auto-close
-function closeAllFilters() {
-    document.querySelectorAll('.filter-dropdown').forEach(d => d.style.display = 'none');
-    document.getElementById('filterBtn').setAttribute('aria-expanded', 'false');
-    document.getElementById('filterBtn').classList.remove('open');
-}
-
-document.getElementById('filterBtn').addEventListener('click', function(e) {
-    e.stopPropagation();
-    const dropdown = document.getElementById('filterDropdown');
-    const isOpen = dropdown.style.display !== 'none';
-    closeAllFilters();
-    if (!isOpen) {
-        dropdown.style.display = 'block';
-        this.setAttribute('aria-expanded', 'true');
-        this.classList.add('open');
-    }
-});
-
-document.addEventListener('click', closeAllFilters);
-document.getElementById('filterDropdown').addEventListener('click', e => e.stopPropagation());
-
-// Clear filters
-document.getElementById('clearFiltersBtn').addEventListener('click', function() {
-    document.querySelectorAll('.filter-checkbox').forEach(c => c.checked = false);
-    closeAllFilters();
-});
-
-// Scanner toggle
-// Scanner state tracking
-let isScanning = false; 
-
-document.getElementById('scannerBtn').addEventListener('click', function(e) {
-    e.stopPropagation();
-    const container = document.getElementById('qrContainer');
-    const isOpen = container.style.display !== 'none';
-    const btn = this;
-    
-    if (isOpen) {
-        // Close the scanner
-        container.style.display = 'none';
-        Quagga.stop();
-        isScanning = false;
-        
-        btn.classList.remove('open');
-        btn.setAttribute('aria-expanded', 'false');
-    } else {
-        // Open the scanner
-        container.style.display = 'block';
-        btn.classList.add('open');
-        btn.setAttribute('aria-expanded', 'true');
-        
-        Quagga.init({
-            inputStream: {
-                name: "Live",
-                type: "LiveStream",
-                // Targets the element where the video stream will inject
-                target: document.querySelector('#qr-reader'), 
-                constraints: {
-                    width: 640,
-                    height: 480,
-                    facingMode: "environment" // Forces back camera
-                },
-            },
-            decoder: {
-                // Optimized for 1D barcodes (e.g., student IDs, member cards)
-                readers: ["code_128_reader", "ean_reader", "code_39_reader", "upc_reader"]
-            } 
-        }, function(err) {
-            if (err) {
-                console.error("Initialization error:", err);
-                alert("Kamera konnte nicht gestartet werden.");
-                return;
-            }
-            Quagga.start();
-            isScanning = true;
-        });
-    }
-});
-
-// Single Quagga event listener for successful scans
-Quagga.onDetected(function(data) {
-    const decodedText = data.codeResult.code;
-    const studentId = String(decodedText || '').trim();
-    
-    // Stop scanning immediately to prevent multiple triggers
-    Quagga.stop();
-    isScanning = false;
-    
-    // Reset UI states to closed
-    const container = document.getElementById('qrContainer');
-    const btn = document.getElementById('scannerBtn');
-    if (container) container.style.display = 'none';
-    if (btn) {
-        btn.classList.remove('open');
-        btn.setAttribute('aria-expanded', 'false');
-    }
-    
-    // Route the scanned data to your input
-    document.getElementById('studentIdInput').value = studentId;
-    alert('Ausweis gescannt: ' + studentId);
-});
-</script>
-
-<style>
-.library-item .item-image-wrapper {
-    width: 120px;
-    height: 160px;
-    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-    border-radius: 8px;
-    overflow: hidden;
-    flex-shrink: 0;
-}
-
-.library-item .placeholder-image {
-    width: 100%;
-    height: 100%;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    font-size: 48px;
-    color: white;
-}
-
-.library-item .item-author {
-    font-size: 0.9rem;
-    color: #666;
-    margin: 4px 0;
-}
-
-.library-item .item-isbn {
-    font-size: 0.85rem;
-    color: #999;
-    font-family: monospace;
-    margin: 4px 0;
-}
-
-.library-item .item-type {
-    display: inline-block;
-    background: #e8f0fe;
-    color: #1967d2;
-    padding: 2px 8px;
-    border-radius: 4px;
-    font-size: 0.8rem;
-}
-
-.library-item .item-status.available {
-    background: #e6f4ea;
-    color: #137333;
-}
-
-.library-item .item-status.borrowed {
-    background: #fce8e6;
-    color: #b3261e;
-}
-
-/* Mobile: allow horizontal scrolling for table-mode views */
-@media (max-width: 900px) {
-    .library-table-wrapper {
-        overflow-x: auto;
-        -webkit-overflow-scrolling: touch;
-        width: 100%;
-    }
-    .library-table-wrapper .table-row {
-        min-width: 720px; /* allow table to have intrinsic width and be scrolled */
-    }
-    .table-header, .item-content.table-mode {
-        display: block; /* keep rows stacked but allow horizontal scroll */
-    }
-}
-</style>
-{% endblock %}

Web/templates/main_admin.html

@@ -819,7 +819,7 @@
         flex: 0 0 auto;
     }
 
-    .ausleihen, .edit-button, .delete-button, .details-button, .duplicate-button, .schedule-button, .damage-button {
+    .ausleihen, .edit-button, .delete-button, .details-button,  .schedule-button, .damage-button {
         padding: 10px 18px;
         border: none;
         border-radius: 5px;
@@ -942,27 +942,6 @@
         box-shadow: 0 2px 4px rgba(23, 162, 184, 0.3);
     }
 
-    /* Duplicate Button */
-    .duplicate-button {
-        background-color: #6f42c1;
-        color: white;
-        border: 2px solid #6f42c1;
-    }
-
-    .duplicate-button:hover {
-        background-color: #5a32a3;
-        border-color: #4e2a8e;
-        transform: translateY(-1px);
-        box-shadow: 0 4px 8px rgba(111, 66, 193, 0.3);
-        color: white;
-        text-decoration: none;
-    }
-
-    .duplicate-button:active {
-        transform: translateY(0);
-        box-shadow: 0 2px 4px rgba(111, 66, 193, 0.3);
-    }
-
     .damage-button {
         background-color: #fd7e14;
         color: white;
@@ -1645,7 +1624,7 @@
             gap: 10px !important;
         }
         
-        .ausleihen, .edit-button, .delete-button, .details-button, .duplicate-button, .schedule-button {
+        .ausleihen, .edit-button, .delete-button, .details-button, .schedule-button {
             width: 100% !important;
             min-height: 44px !important;
             padding: 12px 20px !important;
@@ -1777,7 +1756,7 @@
             justify-content: flex-start;
         }
         
-        .ausleihen, .edit-button, .delete-button, .details-button, .duplicate-button, .schedule-button {
+        .ausleihen, .edit-button, .delete-button, .details-button, .schedule-button {
             padding: 10px 20px;
             font-size: 0.9rem;
             min-width: 110px;
@@ -1790,7 +1769,7 @@
                 gap: 8px;
             }
             
-            .ausleihen, .edit-button, .delete-button, .details-button, .duplicate-button, .schedule-button {
+            .ausleihen, .edit-button, .delete-button, .details-button, .schedule-button {
                 padding: 8px 16px;
                 font-size: 0.85rem;
                 min-width: 95px;
@@ -1808,7 +1787,7 @@
             gap: 15px;
         }
         
-        .ausleihen, .edit-button, .delete-button, .details-button, .duplicate-button, .schedule-button {
+        .ausleihen, .edit-button, .delete-button, .details-button, .schedule-button {
             padding: 12px 24px;
             font-size: 1rem;
             min-width: 120px;
@@ -1951,11 +1930,6 @@
         display: none;
     }
 
-    /* Edit new location container */
-    .edit-new-location-container {
-        display: none;
-        margin-top: 10px;
-    }
 
     /* Modal dialog styling */
     .modal-dialog-white {
@@ -1969,11 +1943,6 @@
         margin-top: 10px;
     }
 
-    /* Element text colors for better visibility */
-    .edit-button, .duplicate-button, .generate-qr-button {
-        color: var(--ui-title) !important;
-    }
-    
     /* Standardized button styles across the application */
     .search-button, .scan-button, .filter-toggle, .clear-filter, 
     .add-new-btn, .popup-close-button, .prev-image-button, .next-image-button,
@@ -1990,7 +1959,7 @@
     }
     
     /* Standardize form and document buttons */
-    .save-button, .cancel-button, .remove-book-cover-button, .remove-duplicate-image-button,
+    .save-button, .cancel-button, .remove-book-cover-button,
     .import-book-button, .fetch-isbn-button, .nav-back-button {
         display: inline-flex;
         align-items: center;
@@ -2474,187 +2443,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
             </div>
         </div>
     </div>
-
-    <!-- Add the edit modal form -->
-    {% if current_permissions.actions.get('can_edit', False) %}
-    <div id="edit-modal" class="item-modal">
-        <div class="modal-content">
-            <span class="close-modal" onclick="closeEditModal()">&times;</span>
-            <h2>Objekt bearbeiten</h2>
-            <form id="edit-item-form" method="POST" enctype="multipart/form-data">
-                <input type="hidden" id="edit-item-id" name="id">
-                <div class="form-row">
-                    <div class="form-group">
-                        <label for="edit-name">Name:</label>
-                        <input type="text" id="edit-name" name="name" required>
-                    </div>
-                    <div class="form-group">
-                        <label for="edit-location">Ort:</label>
-                        <select id="edit-location" name="ort" required>
-                            <option value="">-- Bitte Ort auswählen --</option>
-                            <!-- Options will be loaded by JavaScript -->
-                        </select>
-                        <button type="button" class="add-new-btn" id="edit-add-new-location-btn">
-                            Neuen Ort hinzufügen
-                        </button>
-                        <div id="edit-new-location-container" class="edit-new-location-container">
-                            <input type="text" id="edit-new-location-input" placeholder="Neuen Ort eingeben">
-                            <button type="button" onclick="addNewLocation('edit')">Hinzufügen</button>
-                            <button type="button" onclick="cancelAddLocation('edit')">Abbrechen</button>
-                        </div>
-                    </div>
-                </div>
-                <div class="form-group">
-                    <label for="edit-description">Beschreibung:</label>
-                    <textarea id="edit-description" name="beschreibung" required></textarea>
-                </div>
-                
-                <!-- Updated filter inputs for edit form with dropdowns -->
-                <div class="filter-inputs">
-                    <h3>Unterrichtsfach:</h3>
-                    <div class="multi-filter">
-                        <div class="form-group">
-                            <label for="edit-filter1-1">Wert 1:</label>
-                            <select id="edit-filter1-1" name="filter" class="filter-dropdown-select">
-                                <option value="">-- Bitte auswählen --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter1-2">Wert 2:</label>
-                            <select id="edit-filter1-2" name="filter" class="filter-dropdown-select">
-                                <option value="">-- Optional --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter1-3">Wert 3:</label>
-                            <select id="edit-filter1-3" name="filter" class="filter-dropdown-select">
-                                <option value="">-- Optional --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter1-4">Wert 4:</label>
-                            <select id="edit-filter1-4" name="filter" class="filter-dropdown-select">
-                                <option value="">-- Optional --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                    </div>
-                    
-                    <h3>Jahrgangsstufe:</h3>
-                    <div class="multi-filter">
-                        <div class="form-group">
-                            <label for="edit-filter2-1">Wert 1:</label>
-                            <select id="edit-filter2-1" name="filter2" class="filter-dropdown-select">
-                                <option value="">-- Bitte auswählen --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter2-2">Wert 2:</label>
-                            <select id="edit-filter2-2" name="filter2" class="filter-dropdown-select">
-                                <option value="">-- Optional --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter2-3">Wert 3:</label>
-                            <select id="edit-filter2-3" name="filter2" class="filter-dropdown-select">
-                                <option value="">-- Optional --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter2-4">Wert 4:</label>
-                            <select id="edit-filter2-4" name="filter2" class="filter-dropdown-select">
-                                <option value="">-- Optional --</option>
-                                <!-- Options will be loaded by JavaScript -->
-                            </select>
-                        </div>
-                    </div>
-                    
-                    <h3>Schlagwort:</h3>
-                    <div class="multi-filter">
-                        <div class="form-group">
-                            <label for="edit-filter3-1">Wert 1:</label>
-                            <input type="text" id="edit-filter3-1" name="filter3">
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter3-2">Wert 2:</label>
-                            <input type="text" id="edit-filter3-2" name="filter3">
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter3-3">Wert 3:</label>
-                            <input type="text" id="edit-filter3-3" name="filter3">
-                        </div>
-                        <div class="form-group">
-                            <label for="edit-filter3-4">Wert 4:</label>
-                            <input type="text" id="edit-filter3-4" name="filter3">
-                        </div>
-                    </div>
-                </div>
-                
-                <div class="form-group">
-                    <label for="edit-year">Anschaffungsjahr:</label>
-                    <input type="date" id="edit-year" name="anschaffungsjahr">
-                </div>
-                <div class="form-group">
-                    <label for="edit-cost">Anschaffungskosten (€):</label>
-                    <input id="edit-cost" name="anschaffungskosten">
-                </div>
-                <div class="form-group">
-                    <label for="edit-code4">Code:</label>
-                    <div style="display:flex; gap:8px; align-items:center; flex-wrap:wrap;">
-                        <input id="edit-code4" name="code_4">
-                        <button type="button" class="fetch-isbn-button" id="scan-edit-code-btn">Barcode scannen</button>
-                    </div>
-                </div>
-                
-                <div class="form-group">
-                    <label for="edit-reservierbar" style="display:inline-block; width:auto; margin-right:10px;">Reservierbar:</label>
-                    <input type="checkbox" id="edit-reservierbar" name="reservierbar" style="width:auto;">
-                    <small style="display:block; color:#666;">Wenn deaktiviert, kann der Artikel nicht im Voraus reserviert werden.</small>
-                </div>
-
-                <!-- New section for managing images -->
-                <div class="form-group">
-                    <label>Vorhandene Bilder:</label>
-                    <div id="edit-existing-images" class="existing-images-container">
-                        <!-- Existing images will be added here dynamically -->
-                    </div>
-                </div>
-                
-                <div class="form-group">
-                    <label for="edit-new-images">
-                        <span>Neue Bilder/Videos hinzufügen:</span>
-                        <span>(Bilder/Videos werden vom Original übernommen)</span>
-                    </label>
-                    <input type="file" id="edit-new-images" name="new_images" accept=".jpg, .jpeg, .png, .gif, .mp4, .mov, .avi, .mkv, .webm, .flv, .m4v, .3gp" multiple>
-                    <div class="allowed-formats">Erlaubte Formate: JPG, JPEG, PNG, GIF, MP4, MOV, AVI, MKV, WEBM, FLV, M4V, 3GP</div>
-                    <!-- Add image preview container -->
-                    <div class="image-preview-container" id="edit-image-preview-container"></div>
-                </div>
-                
-                <div class="form-group">
-                    <label for="edit-isbn">ISBN:</label>
-                    <div class="isbn-input-group">
-                        <input type="text" id="edit-isbn" name="isbn" placeholder="ISBN eingeben...">
-                        <button type="button" class="fetch-isbn-button" id="scan-edit-isbn-btn">ISBN scannen</button>
-                        <button type="button" class="fetch-isbn-button" onclick="fetchBookInfo('edit')">Buchinformationen abrufen</button>
-                    </div>
-                    <div id="edit-book-info-container" class="book-info-container"></div>
-                </div>
-                
-                <div class="form-actions">
-                    <button type="submit" class="save-button">Speichern</button>
-                    <button type="button" class="cancel-button" onclick="closeEditModal()">Abbrechen</button>
-                </div>
-            </form>
-        </div>
-    </div>
-    {% endif %}
 </div>
 
 <!-- Schedule Appointment Modal -->
@@ -2889,58 +2677,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
         }
     });
 
-    function scanIntoEditCode() {
-        const qrReader = document.getElementById('qr-reader');
-        const editCodeInput = document.getElementById('edit-code4');
-        const scanEditBtn = document.getElementById('scan-edit-code-btn');
-        if (!qrReader || !editCodeInput || !scanEditBtn) {
-            return;
-        }
-
-        // Toggle close if it's already running
-        if (isScanning && qrReader.style.display !== 'none') {
-            stopScanner();
-            scanEditBtn.textContent = 'Barcode scannen';
-            return;
-        }
-
-        scanEditBtn.textContent = 'Scanner schließen';
-
-        // Start scanner with custom logic mapping to the Code input field
-        startScanner(function(decodedText) {
-            editCodeInput.value = decodedText;
-            validateCodeField(editCodeInput, document.getElementById('edit-item-id')?.value || null);
-            scanEditBtn.textContent = 'Barcode scannen';
-        });
-    }
-
-    function scanIntoEditIsbn() {
-        const qrReader = document.getElementById('qr-reader');
-        const editIsbnInput = document.getElementById('edit-isbn');
-        const scanIsbnBtn = document.getElementById('scan-edit-isbn-btn');
-        if (!qrReader || !editIsbnInput || !scanIsbnBtn) {
-            return;
-        }
-
-        // Toggle close if it's already running
-        if (isScanning && qrReader.style.display !== 'none') {
-            stopScanner();
-            scanIsbnBtn.textContent = 'ISBN scannen';
-            return;
-        }
-
-        scanIsbnBtn.textContent = 'Scanner schließen';
-
-        // Start scanner with custom logic mapping to the ISBN input field
-        startScanner(function(decodedText) {
-            editIsbnInput.value = decodedText;
-            scanIsbnBtn.textContent = 'ISBN scannen';
-            if (typeof fetchBookInfo === 'function') {
-                fetchBookInfo('edit');
-            }
-        });
-    }
-
     function rebuildFilter3Options() {
         if (!allItems) return;
         
@@ -3325,20 +3061,10 @@ document.addEventListener('DOMContentLoaded', ()=>{
         loadPredefinedFilterValues(2);
         loadPredefinedFilterValues(3);
 
-        // Set up edit form submission
-        setupEditFormSubmission();
         
         // Set up schedule form submission
         setupScheduleFormSubmission();
 
-        // Set up add new location buttons
-        const editAddLocationBtn = document.getElementById('edit-add-new-location-btn');
-        if (editAddLocationBtn) {
-            editAddLocationBtn.addEventListener('click', function() {
-                const container = document.getElementById('edit-new-location-container');
-                container.style.display = container.style.display === 'none' ? 'block' : 'none';
-            });
-        }
         
         // Find and attach event listener to all logout links
         const logoutLinks = document.querySelectorAll('a[href*="logout"]');
@@ -3391,35 +3117,11 @@ document.addEventListener('DOMContentLoaded', ()=>{
         // Close modals when clicking outside
         window.onclick = function(event) {
             const itemModal = document.getElementById('item-modal');
-            const editModal = document.getElementById('edit-modal');
             
             if (event.target === itemModal) {
                 itemModal.style.display = 'none';
             }
-            if (event.target === editModal) {
-                editModal.style.display = 'none';
-            }
         };
-
-        // Set up code validation for edit form
-        const editCodeField = document.getElementById('edit-code4');
-        if (editCodeField) {
-            editCodeField.addEventListener('blur', function() {
-                const itemIdField = document.getElementById('edit-item-id');
-                const excludeId = itemIdField ? itemIdField.value : null;
-                validateCodeField(this, excludeId);
-            });
-        }
-
-        const scanEditCodeBtn = document.getElementById('scan-edit-code-btn');
-        if (scanEditCodeBtn) {
-            scanEditCodeBtn.addEventListener('click', scanIntoEditCode);
-        }
-
-        const scanEditIsbnBtn = document.getElementById('scan-edit-isbn-btn');
-        if (scanEditIsbnBtn) {
-            scanEditIsbnBtn.addEventListener('click', scanIntoEditIsbn);
-        }
     });
 
     // Function to load items from server
@@ -3742,9 +3444,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
                                 {% if current_permissions.actions.get('can_edit', False) %}
                                 <button class="edit-button" onclick="openEditModalForSelectedUnit('${item._id}', 'specific-item-card-${item._id}')">Bearbeiten</button>
                                 {% endif %}
-                                {% if current_permissions.actions.get('can_insert', False) %}
-                                <button class="duplicate-button" onclick="duplicateItem('${item._id}')">Duplizieren</button>
-                                {% endif %}
                                 {% if current_permissions.pages.get('admin_school_settings', False) %}
                                 ${canScheduleItem ? `<button class="schedule-button" onclick="openScheduleModal('${item._id}')">Reservieren</button>` : ''}
                                 {% endif %}
@@ -4171,162 +3870,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
             });
     }
 
-    function openEditModalForSelectedUnit(defaultItemId, selectId) {
-        let targetItemId = defaultItemId;
-
-        try {
-            const selectedUnit = selectId ? document.getElementById(selectId) : null;
-            if (selectedUnit && selectedUnit.value) {
-                targetItemId = selectedUnit.value;
-            }
-        } catch (e) {
-            // Keep default item id as fallback.
-        }
-
-        openEditModalFromServer(targetItemId);
-    }
-
-    function closeEditModal() {
-        const editModal = document.getElementById('edit-modal');
-        if (editModal) {
-            editModal.style.display = 'none';
-        }
-    }
-
-    function openEditModalFromServer(itemId) {
-        const editModal = document.getElementById('edit-modal');
-        if (!editModal) {
-            console.error('Edit modal nicht gefunden');
-            return;
-        }
-
-        console.log('DEBUG: openEditModal called with itemId:', itemId);
-
-        // Fetch the item data from the backend
-        fetch(`/get_item/${itemId}`)
-            .then(response => {
-                console.log('DEBUG: Response status:', response.status);
-                if (!response.ok) throw new Error(`HTTP ${response.status}`);
-                return response.json();
-            })
-            .then(data => {
-                console.log('DEBUG: Fetched data:', data);
-                // Backend returns the item directly or wrapped in error/success
-                const item = data.error ? null : (data.item || data);
-                
-                console.log('DEBUG: Parsed item:', item);
-                
-                if (!item || !item._id) {
-                    console.error('DEBUG: Item not found or invalid');
-                    alert('Item nicht gefunden');
-                    return;
-                }
-
-                // Fill in the form fields with the item data
-                document.getElementById('edit-item-id').value = item._id || '';
-                document.getElementById('edit-name').value = item.Name || '';
-                document.getElementById('edit-location').value = item.Ort || '';
-                document.getElementById('edit-description').value = item.Beschreibung || '';
-                document.getElementById('edit-year').value = item.Anschaffungsjahr || '';
-                document.getElementById('edit-cost').value = item.Anschaffungskosten || '';
-                document.getElementById('edit-code4').value = item.Code_4 || '';
-                document.getElementById('edit-isbn').value = item.ISBN || '';
-                document.getElementById('edit-reservierbar').checked = item.Reservierbar !== false;
-
-                // Fill in filter 1 (Unterrichtsfach)
-                const filter1Array = Array.isArray(item.Filter) ? item.Filter : (item.Filter ? [item.Filter] : []);
-                document.getElementById('edit-filter1-1').value = filter1Array[0] || '';
-                document.getElementById('edit-filter1-2').value = filter1Array[1] || '';
-                document.getElementById('edit-filter1-3').value = filter1Array[2] || '';
-                document.getElementById('edit-filter1-4').value = filter1Array[3] || '';
-
-                // Fill in filter 2 (Jahrgangsstufe)
-                const filter2Array = Array.isArray(item.Filter2) ? item.Filter2 : (item.Filter2 ? [item.Filter2] : []);
-                document.getElementById('edit-filter2-1').value = filter2Array[0] || '';
-                document.getElementById('edit-filter2-2').value = filter2Array[1] || '';
-                document.getElementById('edit-filter2-3').value = filter2Array[2] || '';
-                document.getElementById('edit-filter2-4').value = filter2Array[3] || '';
-
-                // Fill in filter 3 (Schlagwort)
-                const filter3Array = Array.isArray(item.Filter3) ? item.Filter3 : (item.Filter3 ? [item.Filter3] : []);
-                document.getElementById('edit-filter3-1').value = filter3Array[0] || '';
-                document.getElementById('edit-filter3-2').value = filter3Array[1] || '';
-                document.getElementById('edit-filter3-3').value = filter3Array[2] || '';
-                document.getElementById('edit-filter3-4').value = filter3Array[3] || '';
-
-                // Display existing images
-                const existingImagesContainer = document.getElementById('edit-existing-images');
-                const editForm = document.getElementById('edit-item-form');
-                existingImagesContainer.innerHTML = '';
-                if (editForm) {
-                    editForm.querySelectorAll('input[name="existing_images"], input[name="removed_images"]').forEach(input => input.remove());
-                }
-                if (item.Images && Array.isArray(item.Images)) {
-                    item.Images.forEach((image, index) => {
-                        const isVideo = isVideoFile(image);
-                        const imageDiv = document.createElement('div');
-                        imageDiv.className = 'existing-image-item';
-                        imageDiv.style.marginBottom = '10px';
-
-                        const thumbnailInfo = item.ThumbnailInfo && item.ThumbnailInfo[index];
-                        const imageSrc = thumbnailInfo && thumbnailInfo.has_preview ? 
-                            thumbnailInfo.preview_url : 
-                            (image.startsWith('/uploads/') || image.startsWith('http') ? 
-                                image : 
-                                `{{ url_for('uploaded_file', filename='') }}${image}`);
-
-                        const row = document.createElement('div');
-                        row.style.display = 'flex';
-                        row.style.gap = '8px';
-                        row.style.alignItems = 'center';
-
-                        if (isVideo) {
-                            const video = document.createElement('video');
-                            video.src = imageSrc;
-                            video.style.maxWidth = '100px';
-                            video.style.maxHeight = '100px';
-                            video.style.objectFit = 'contain';
-                            video.controls = true;
-                            row.appendChild(video);
-                        } else {
-                            const img = document.createElement('img');
-                            img.src = imageSrc;
-                            img.style.maxWidth = '100px';
-                            img.style.maxHeight = '100px';
-                            img.style.objectFit = 'contain';
-                            img.alt = `Existierendes Bild ${index + 1}`;
-                            row.appendChild(img);
-                        }
-
-                        const deleteButton = document.createElement('button');
-                        deleteButton.type = 'button';
-                        deleteButton.className = 'delete-image-button';
-                        deleteButton.textContent = 'Löschen';
-                        deleteButton.addEventListener('click', () => removeExistingImage(image, deleteButton));
-                        row.appendChild(deleteButton);
-
-                        imageDiv.appendChild(row);
-                        existingImagesContainer.appendChild(imageDiv);
-
-                        if (editForm) {
-                            const hiddenInput = document.createElement('input');
-                            hiddenInput.type = 'hidden';
-                            hiddenInput.name = 'existing_images';
-                            hiddenInput.value = image;
-                            editForm.appendChild(hiddenInput);
-                        }
-                    });
-                }
-
-                // Display the modal
-                editModal.style.display = 'block';
-            })
-            .catch(error => {
-                console.error('Fehler beim Laden des Items:', error);
-                alert('Fehler beim Laden des Items');
-            });
-    }
-
     function escapeHtml(value) {
         return String(value ?? '').replace(/[&<>'"]/g, (char) => {
             const map = {
@@ -4677,7 +4220,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
                     : `<button class="ausleihen disabled-button" disabled>Ausgeliehen</button>`
                 }
                 <button class="edit-button" onclick="openEditModalForSelectedUnit('${item._id}', 'specific-item-modal-${item._id}')">Bearbeiten</button>
-                <button class="duplicate-button" onclick="duplicateItem('${item._id}')">Duplizieren</button>
                 ${damageReports && damageReports.length > 0 ? `<button class="damage-button" onclick="markDamageAsRepaired('${item._id}')">Repariert</button>` : `<button class="damage-button" onclick="registerDamage('${item._id}')">Schaden melden</button>`}
                 ${canScheduleItem ? `<button class="schedule-button" onclick="openScheduleModal('${item._id}')">Reservieren</button>` : ''}
                 <form method="POST" action="/delete_item/${item._id}" style="display:inline;" onsubmit="return confirm('Sind Sie sicher?')">
@@ -4687,6 +4229,8 @@ document.addEventListener('DOMContentLoaded', ()=>{
             </div>
         `;
 
+
+
         modal.style.display = 'block';
         
         const closeButton = modal.querySelector('.close-modal');
@@ -4923,6 +4467,13 @@ document.addEventListener('DOMContentLoaded', ()=>{
         });
     }
 
+    function openEditModalForSelectedUnit(itemId, selectId) {
+    const select = document.getElementById(selectId);
+    const targetId = (select && select.value) ? select.value : itemId;
+    // Leitet auf die Bearbeiten-Seite weiter und übergibt die aktuelle URL für den Redirect nach dem Speichern
+    window.location.href = `/item_edit/${targetId}`;
+    }
+
     function changeModalImage(direction) {
         const currentIndex = window.currentModalImageIndex;
         const total = window.totalModalImages;
@@ -5349,8 +4900,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
         });
     }
 
-    // Load location options for edit modal
-    // Edit-related functions moved to edit_item_functions.html
 
     // Schedule modal functions
     function openScheduleModal(itemId) {
@@ -5470,99 +5019,6 @@ document.addEventListener('DOMContentLoaded', ()=>{
         }
     }
 
-    // Setup edit form submission
-    function setupEditFormSubmission() {
-        const editForm = document.getElementById('edit-item-form');
-        if (editForm) {
-            editForm.addEventListener('submit', function(e) {
-                e.preventDefault();
-                
-                const itemId = document.getElementById('edit-item-id').value;
-                const formData = new FormData(this);
-                
-                fetch(`/edit_item/${itemId}`, {
-                    method: 'POST',
-                    body: formData
-                })
-                .then(response => {
-                    if (response.ok) {
-                        closeEditModal();
-                        // Reload items to show updated information
-                        loadItems();
-                        // Show success message
-                        const successMsg = document.createElement('div');
-                        successMsg.className = 'alert alert-success';
-                        successMsg.textContent = 'Item wurde erfolgreich aktualisiert!';
-                        successMsg.style.position = 'fixed';
-                        successMsg.style.top = '20px';
-                        successMsg.style.right = '20px';
-                        successMsg.style.zIndex = '9999';
-                        document.body.appendChild(successMsg);
-                        setTimeout(() => {
-                            if (successMsg.parentNode) {
-                                successMsg.parentNode.removeChild(successMsg);
-                            }
-                        }, 3000);
-                    } else {
-                        alert('Fehler beim Aktualisieren des Items');
-                    }
-                })
-                .catch(error => {
-                    console.error('Error updating item:', error);
-                    alert('Fehler beim Aktualisieren des Items');
-                });
-            });
-        }
-    }
-
-    // Duplication function
-    function duplicateItem(itemId) {
-        // Show loading indicator
-        const loadingDiv = document.createElement('div');
-        loadingDiv.innerHTML = `
-            <div style="position: fixed; top: 0; left: 0; width: 100%; height: 100%; 
-                        background: rgba(0,0,0,0.5); z-index: 10000; display: flex; 
-                        align-items: center; justify-content: center;">
-                <div class="modal-dialog-white">
-                    <div>Element wird dupliziert...</div>
-                    <div class="modal-content-margin">
-                        <div class="spinner"></div>
-                    </div>
-                </div>
-            </div>
-        `;
-        document.body.appendChild(loadingDiv);
-
-        // Create form data for the duplicate_item request
-        const formData = new FormData();
-        formData.append('original_item_id', itemId);
-
-        // Send duplication request to get item data
-        fetch('/duplicate_item', {
-            method: 'POST',
-            body: formData
-        })
-        .then(response => response.json())
-        .then(data => {
-            document.body.removeChild(loadingDiv);
-            
-            if (data.success) {
-                // Store duplication data in sessionStorage for the upload page
-                sessionStorage.setItem('duplicateItemData', JSON.stringify(data.item_data));
-                
-                // Redirect to upload admin page
-                window.location.href = '/upload_admin?duplicate=true';
-            } else {
-                alert('Fehler beim Duplizieren: ' + (data.message || 'Unbekannter Fehler'));
-            }
-        })
-        .catch(error => {
-            document.body.removeChild(loadingDiv);
-            console.error('Error duplicating item:', error);
-            alert('Fehler beim Duplizieren des Elements. Bitte versuchen Sie es erneut.');
-        });
-    }
-
     // Helper functions for appointment display
     function formatAppointmentDate(dateString) {
         if (!dateString) return '';
@@ -5632,10 +5088,62 @@ document.addEventListener('DOMContentLoaded', ()=>{
         futureAppointments.sort((a, b) => new Date(a.date) - new Date(b.date));
         return futureAppointments[0];
     }
-</script>
 
-<!-- Include edit item functions -->
+    // Load location options
-{% include "edit_item_functions.html" %}
+    function loadLocationOptions() {
+        fetch('/get_predefined_locations')
+            .then(response => response.json())
+            .then(data => {
+                const ortSelect = document.getElementById('ort');
+                if (ortSelect) {
+                    // Clear existing options except the first one
+                    while (ortSelect.children.length > 1) {
+                        ortSelect.removeChild(ortSelect.lastChild);
+                    }
+
+                    // Add new options - data.locations contains the array
+                    data.locations.forEach(location => {
+                        const option = document.createElement('option');
+                        option.value = location;
+                        option.textContent = location;
+                        ortSelect.appendChild(option);
+                    });
+                }
+            })
+            .catch(error => {
+                console.error('Error loading location options:', error);
+            });
+    }
+
+    // Function to add new location
+    function addNewLocation() {
+        const newLocationInput = document.getElementById('new-location-input');
+        const newLocation = newLocationInput.value.trim();
+
+        if (!newLocation) {
+            alert('Bitte geben Sie einen Ort ein.');
+            return;
+        }
+
+        // Add to dropdown
+        const ortSelect = document.getElementById('ort');
+        const option = document.createElement('option');
+        option.value = newLocation;
+        option.textContent = newLocation;
+        option.selected = true;
+        ortSelect.appendChild(option);
+
+        // Hide the input container
+        document.getElementById('new-location-container').style.display = 'none';
+        newLocationInput.value = '';
+    }
+
+    // Function to cancel adding new location
+    function cancelAddLocation() {
+        document.getElementById('new-location-container').style.display = 'none';
+        document.getElementById('new-location-input').value = '';
+    }
+</script>
 
 <!-- Include reset item functions -->
 {% include "reset_item_functions.html" %}
@@ -5864,16 +5372,4 @@ document.addEventListener('DOMContentLoaded', ()=>{
     }
 }
 </style>
-
-{% if open_item %}
-<script>
-    document.addEventListener("DOMContentLoaded", function() {
-        if (typeof openEditModalFromServer === 'function') {
-            setTimeout(function() {
-                openEditModalFromServer('{{ open_item }}');
-            }, 500);
-        }
-    });
-</script>
-{% endif %}
 {% endblock %}

Web/templates/manage_filters.html

@@ -19,7 +19,7 @@
         <div class="col-md-4">
             <div class="card mb-4">
                 <div class="card-header">
-                    <h2 class="card-title h5 mb-0">{{ filter_names.get('1', 'Fach/Kategorie') }} (Filter 1)</h2>
+                    <h2 class="card-title h5 mb-0">{{ filter_names.get('1', 'Jahrgang') }} (Filter 1)</h2>
                 </div>
                 <div class="card-body">
                     <form method="POST" action="{{ url_for('add_filter_value', filter_num=1) }}" class="mb-4">
@@ -67,7 +67,7 @@
         <div class="col-md-4">
             <div class="card mb-4">
                 <div class="card-header">
-                    <h2 class="card-title h5 mb-0">{{ filter_names.get('2', 'System/Bereich') }} (Filter 2)</h2>
+                    <h2 class="card-title h5 mb-0">{{ filter_names.get('2', 'Fach') }} (Filter 2)</h2>
                 </div>
                 <div class="card-body">
                     <form method="POST" action="{{ url_for('add_filter_value', filter_num=2) }}" class="mb-4">
@@ -110,54 +110,6 @@
                 </div>
             </div>
         </div>
-
-        <!-- Filter 3 -->
-        <div class="col-md-4">
-            <div class="card mb-4">
-                <div class="card-header">
-                    <h2 class="card-title h5 mb-0">{{ filter_names.get('3', 'Typ/Art') }} (Filter 3)</h2>
-                </div>
-                <div class="card-body">
-                    <form method="POST" action="{{ url_for('add_filter_value', filter_num=3) }}" class="mb-4">
-                        <div class="input-group">
-                            <input type="text" name="value" class="form-control" placeholder="Neuer Wert..." required>
-                            <button type="submit" class="btn btn-primary">Hinzufügen</button>
-                        </div>
-                    </form>
-                    
-                    <h5 class="mb-3">Vorhandene Werte</h5>
-                    {% if filter3_values %}
-                    <div class="list-group">
-                        {% for value in filter3_values %}
-                        <div class="list-group-item">
-                            <div class="d-flex justify-content-between align-items-center mb-2">
-                                <span>{{ value }}</span>
-                                <div>
-                                    <button type="button" class="btn btn-sm btn-secondary me-1" onclick="toggleEdit('edit-3-{{ loop.index }}')">Bearbeiten</button>
-                                    <form method="POST" action="{{ url_for('remove_filter_value', filter_num=3, value=value) }}" class="d-inline">
-                                        <button type="submit" class="btn btn-sm btn-danger"
-                                                onclick="return confirm('Sind Sie sicher, dass Sie den Wert \"' + '{{ value }}'.replace(/'/g, '\\\'') + '\" löschen möchten?');">
-                                            Entfernen
-                                        </button>
-                                    </form>
-                                </div>
-                            </div>
-                            <form id="edit-3-{{ loop.index }}" method="POST" action="{{ url_for('edit_filter_value', filter_num=3, old_value=value) }}" style="display: none;" class="mt-2">
-                                <div class="input-group input-group-sm">
-                                    <input type="text" name="new_value" class="form-control" value="{{ value }}" required>
-                                    <button type="submit" class="btn btn-primary" onclick="return confirm('Tipp: Das Ändern des Namens aktualisiert auch alle Einträge in der Datenbank, die diesen Filter verwenden. Fortfahren?');">Speichern</button>
-                                    <button type="button" class="btn btn-secondary" onclick="toggleEdit('edit-3-{{ loop.index }}')">Abbrechen</button>
-                                </div>
-                            </form>
-                        </div>
-                        {% endfor %}
-                    </div>
-                    {% else %}
-                    <div class="alert alert-info">Keine Werte definiert.</div>
-                    {% endif %}
-                </div>
-            </div>
-        </div>
     </div>
     
     <div class="alert alert-warning">

Web/templates/register.html

@@ -6,7 +6,7 @@
 <div class="container">
     <div class="header-section">
         <h1>Neuen Benutzer registrieren</h1>
-        <p class="subtitle">Erstellen Sie ein neues Benutzerkonto und legen Sie Zugriffsrechte fest</p>
+        <p class="subtitle">Erstellen Sie ein neues Benutzerkonto oder importieren Sie mehrere Benutzer per CSV</p>
     </div>
 
     <div class="flash-container">
@@ -23,7 +23,43 @@
     </div>
 
     <div class="content">
+        <!-- 1. CSV BULK IMPORT CARD -->
+        <div class="form-card" style="margin-bottom: 2rem; border-top: 4px solid #059669;">
+            <div class="card-header" style="margin-bottom: 1rem;">
+                <h2>Massenregistrierung via CSV</h2>
+                <p class="subtitle" style="color: #4b5563;">
+                    Laden Sie eine CSV-Datei hoch (Format: <code>Vorname, Nachname</code>).
+                    Benutzernamen und sichere Passwörter werden serverseitig generiert. Nach dem Upload erhalten Sie direkt ein PDF mit Zugangsdaten (2 pro Seite zum Ausschneiden).
+                </p>
+            </div>
+
+            <form method="POST" action="{{ url_for('register_csv') }}" enctype="multipart/form-data">
+                <div class="form-group">
+                    <label for="permission-preset-csv">Berechtigungs-Preset für alle CSV-Benutzer</label>
+                    <select id="permission-preset-csv" name="permission_preset" class="form-select" style="margin-bottom: 1rem;">
+                        {% for preset_key, preset in permission_presets.items() %}
+                        <option value="{{ preset_key }}">{{ preset.label }}</option>
+                        {% endfor %}
+                    </select>
+
+                    <label for="csv_file">CSV-Datei auswählen</label>
+                    <div class="input-container">
+                        <span class="input-icon">📄</span>
+                        <input type="file" id="csv_file" name="csv_file" accept=".csv" required style="padding: 10px;">
+                    </div>
+                </div>
+
+                <div class="form-group form-actions" style="margin-top: 1.5rem;">
+                    <button type="submit" class="action-button" style="background-color: #059669; color: white;">
+                        📥 CSV Importieren & Zugangsdaten-PDF Herunterladen
+                    </button>
+                </div>
+            </form>
+        </div>
+
+        <!-- 2. SINGLE USER REGISTRATION CARD -->
         <div class="form-card">
+            <h2>Einzelnen Benutzer registrieren</h2>
             <form method="POST" action="{{ url_for('register') }}">
 
                 <div class="form-group">
@@ -32,11 +68,13 @@
                         <span class="input-icon">👤</span>
                         <input type="text" id="name" name="name" placeholder="Geben Sie den Vornamen ein" required onchange="generateUsername()" oninput="generateUsername()">
                     </div>
+
                     <label for="last-name">Nachname</label>
                     <div class="input-container">
                         <span class="input-icon">👤</span>
                         <input type="text" id="last-name" name="last-name" placeholder="Geben Sie den Nachnamen ein" required onchange="generateUsername()" oninput="generateUsername()">
                     </div>
+
                     <label for="username">Benutzername <span style="color: #9ca3af;">(Vorschau - wird serverseitig finalisiert)</span></label>
                     <div class="input-container">
                         <span class="input-icon">👤</span>
@@ -61,16 +99,17 @@
                     <div class="input-wrapper">
                         <div class="input-container">
                             <span class="input-icon">🔒</span>
-                            <!-- HTML5 Pattern blockiert unsichere Passwörter vor dem Absenden -->
                             <input
+                                   type="password"
                                    id="password"
                                    name="password"
                                    placeholder="Geben Sie ein sicheres Passwort ein"
                                    required
                                    pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9]).{12,}">
+                            <button type="button" id="toggle-pw-btn" class="toggle-pw-btn" onclick="togglePasswordVisibility()" style="background:none; border:none; cursor:pointer; padding-right:10px;">👁️</button>
                         </div>
                     </div>
-                    <div class="pw-actions">
+                    <div class="pw-actions" style="margin-top: 8px;">
                         <button type="button" class="btn-secondary" onclick="generateSecurePassword()">Passwort generieren</button>
                     </div>
                 </div>
@@ -120,323 +159,6 @@
     </div>
 </div>
 
-<style>
-:root {
-    --primary-color: #3498db;
-    --primary-dark: #2980b9;
-    --success-color: #2ecc71;
-    --error-color: #e74c3c;
-    --text-color: var(--ui-text);
-    --light-bg: #f9f9f9;
-    --border-radius: 8px;
-    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
-    --transition: all 0.3s ease;
-}
-
-body {
-    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-    background-color: var(--light-bg);
-    margin: 0;
-    padding: 0;
-    color: var(--text-color);
-    line-height: 1.6;
-}
-
-.container {
-    max-width: 800px;
-    margin: 2rem auto;
-    padding: 0 1.5rem;
-}
-
-.header-section {
-    text-align: center;
-    margin-bottom: 2rem;
-    padding-bottom: 1.5rem;
-    border-bottom: 1px solid #eee;
-}
-
-.header-section h1 {
-    font-size: 2.5rem;
-    margin-bottom: 0.5rem;
-    color: var(--primary-color);
-}
-
-.subtitle {
-    font-size: 1.1rem;
-    color: #777;
-    margin-top: 0;
-}
-
-.content {
-    background-color: var(--ui-surface);
-    padding: 2rem;
-    border-radius: var(--border-radius);
-    box-shadow: var(--shadow);
-    margin-bottom: 2rem;
-}
-
-.form-card {
-    max-width: 500px;
-    margin: 0 auto;
-}
-
-.form-group {
-    margin-bottom: 1.5rem;
-}
-
-.form-group label {
-    display: block;
-    margin-bottom: 0.5rem;
-    font-weight: 500;
-    color: var(--primary-dark);
-}
-
-.input-container {
-    position: relative;
-}
-
-.input-icon {
-    position: absolute;
-    left: 1rem;
-    top: 50%;
-    transform: translateY(-50%);
-    color: #aaa;
-    font-size: 1.2rem;
-}
-
-input[type="text"],
-input[type="password"],
-.form-select {
-    width: 100%;
-    padding: 0.8rem 1rem 0.8rem 3rem;
-    border: 1px solid #ddd;
-    border-radius: var(--border-radius);
-    font-size: 1rem;
-    transition: var(--transition);
-    box-sizing: border-box;
-}
-
-input[type="text"]:focus,
-input[type="password"]:focus,
-.form-select:focus {
-    border-color: var(--primary-color);
-    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
-    outline: none;
-}
-
-.form-select {
-    padding-left: 1rem;
-}
-
-input::placeholder {
-    color: #aaa;
-}
-
-.form-actions {
-    margin-top: 2rem;
-}
-
-.action-button {
-    background-color: var(--primary-color);
-    color: white;
-    border: none;
-    padding: 0.8rem 1.5rem;
-    border-radius: 30px;
-    cursor: pointer;
-    font-weight: 600;
-    transition: var(--transition);
-    width: 100%;
-    font-size: 1rem;
-}
-
-.action-button:hover {
-    background-color: var(--primary-dark);
-    transform: translateY(-2px);
-    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
-}
-
-.register-button {
-    background-color: var(--success-color);
-}
-
-.register-button:hover {
-    background-color: #27ae60;
-}
-
-.flash-container {
-    margin-bottom: 1.5rem;
-}
-
-.flash {
-    display: flex;
-    align-items: center;
-    padding: 1rem;
-    margin-bottom: 1rem;
-    border-radius: var(--border-radius);
-    animation: fadeIn 0.3s ease-in-out;
-}
-
-.flash-icon {
-    margin-right: 0.8rem;
-    font-size: 1.2rem;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    width: 24px;
-    height: 24px;
-    border-radius: 50%;
-    background-color: rgba(255, 255, 255, 0.3);
-}
-
-.flash.success {
-    background-color: #d4edda;
-    color: #155724;
-    border-left: 4px solid var(--success-color);
-}
-
-.flash.error {
-    background-color: #f8d7da;
-    color: #721c24;
-    border-left: 4px solid var(--error-color);
-}
-
-@keyframes fadeIn {
-    from { opacity: 0; transform: translateY(-10px); }
-    to { opacity: 1; transform: translateY(0); }
-}
-
-@media (max-width: 768px) {
-    .container {
-        padding: 0 1rem;
-        margin: 1rem auto;
-    }
-    
-    .content {
-        padding: 1.5rem;
-    }
-    
-    .header-section h1 {
-        font-size: 2rem;
-    }
-}
-
-.password-rules {
-    margin-bottom: 10px;
-    padding: 10px 12px;
-    border: 1px solid #e5e7eb;
-    border-radius: 8px;
-    background: var(--ui-surface-soft);
-}
-
-.password-rules-title {
-    margin: 0 0 8px;
-    font-weight: 700;
-    color: #1f2937;
-    font-size: 0.92rem;
-}
-
-.password-rules ul {
-    list-style: none;
-    margin: 0;
-    padding: 0;
-}
-
-.pw-rule {
-    position: relative;
-    padding-left: 22px;
-    margin: 5px 0;
-    color: #b91c1c;
-    font-size: 0.9rem;
-}
-
-.pw-rule::before {
-    content: '✗';
-    position: absolute;
-    left: 0;
-    top: 0;
-    font-weight: 700;
-}
-
-.pw-rule.ok {
-    color: #166534;
-}
-
-.pw-rule.ok::before {
-    content: '✓';
-}
-
-.anonymize-hint {
-    margin-top: 10px;
-    margin-bottom: 0;
-    background: #f0f9ff;
-    border: 1px solid #bae6fd;
-    border-radius: 8px;
-    padding: 10px 12px;
-    color: #0c4a6e;
-    font-size: 0.92rem;
-}
-
-.permission-panels {
-    display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
-    gap: 12px;
-}
-
-.permission-panel {
-    border: 1px solid #d1d5db;
-    border-radius: 8px;
-    padding: 10px;
-    background: var(--ui-surface-soft);
-}
-
-.permission-panel h4 {
-    margin: 0 0 8px;
-    font-size: 1rem;
-    color: #1f2937;
-}
-
-.permission-check {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    margin: 4px 0;
-    color: #1f2937;
-}
-
-/* Neue Styles für die Passwort-Erweiterungen */
-.pw-actions {
-    display: flex;
-    gap: 8px;
-    margin-top: 8px;
-}
-
-.btn-secondary {
-    padding: 8px 12px;
-    border: 1px solid #d1d5db;
-    background-color: #f3f4f6;
-    border-radius: 4px;
-    cursor: pointer;
-    font-size: 0.9em;
-    transition: background-color 0.2s;
-}
-
-.btn-secondary:hover {
-    background-color: #e5e7eb;
-}
-
-.input-wrapper {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    width: 100%;
-}
-
-.input-wrapper .input-container {
-    flex-grow: 1;
-    margin: 0;
-}
-</style>
-
 <script>
 // Hilfsfunktion: Umlaute auflösen und Sonderzeichen entfernen
 function cleanNameForUsername(text) {
@@ -504,9 +226,10 @@ function generateSecurePassword() {
     const pwField = document.getElementById('password');
     pwField.value = password;
 
-    // Automatisch sichtbar machen, damit der User es kopieren kann
+    // Automatisch sichtbar machen
     pwField.type = 'text';
-    document.getElementById('toggle-pw-btn').textContent = '🙈';
+    const toggleBtn = document.getElementById('toggle-pw-btn');
+    if (toggleBtn) toggleBtn.textContent = '🙈';
 
     updatePasswordRules();
 }
@@ -517,10 +240,10 @@ function togglePasswordVisibility() {
     const toggleBtn = document.getElementById('toggle-pw-btn');
     if (pwField.type === "password") {
         pwField.type = "text";
-        toggleBtn.textContent = '🙈';
+        if (toggleBtn) toggleBtn.textContent = '🙈';
     } else {
         pwField.type = "password";
-        toggleBtn.textContent = '👁️';
+        if (toggleBtn) toggleBtn.textContent = '👁️';
     }
 }
 
@@ -592,4 +315,409 @@ document.addEventListener('DOMContentLoaded', function () {
     }
 });
 </script>
+
+<style>
+:root {
+    --primary-color: #3498db;
+    --primary-dark: #2980b9;
+    --success-color: #2ecc71;
+    --success-dark: #27ae60;
+    --csv-color: #059669;
+    --csv-dark: #047857;
+    --error-color: #e74c3c;
+    --text-color: var(--ui-text, #1f2937);
+    --light-bg: #f9f9f9;
+    --border-radius: 8px;
+    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
+    --transition: all 0.3s ease;
+}
+
+body {
+    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+    background-color: var(--light-bg);
+    margin: 0;
+    padding: 0;
+    color: var(--text-color);
+    line-height: 1.6;
+}
+
+.container {
+    max-width: 800px;
+    margin: 2rem auto;
+    padding: 0 1.5rem;
+}
+
+.header-section {
+    text-align: center;
+    margin-bottom: 2rem;
+    padding-bottom: 1.5rem;
+    border-bottom: 1px solid #eee;
+}
+
+.header-section h1 {
+    font-size: 2.5rem;
+    margin-bottom: 0.5rem;
+    color: var(--primary-color);
+}
+
+.subtitle {
+    font-size: 1.05rem;
+    color: #6b7280;
+    margin-top: 0;
+}
+
+.content {
+    background-color: var(--ui-surface, #ffffff);
+    padding: 2rem;
+    border-radius: var(--border-radius);
+    box-shadow: var(--shadow);
+    margin-bottom: 2rem;
+}
+
+/* Karten-Layout für Einzel- & Massenregistrierung */
+.form-card {
+    max-width: 620px;
+    margin: 0 auto 2.5rem auto;
+    padding: 1.5rem;
+    background: var(--ui-surface-soft, #f9fafb);
+    border: 1px solid #e5e7eb;
+    border-radius: var(--border-radius);
+}
+
+.form-card:last-child {
+    margin-bottom: 0;
+}
+
+.form-card h2 {
+    font-size: 1.4rem;
+    margin-top: 0;
+    margin-bottom: 0.5rem;
+    color: #111827;
+}
+
+.form-group {
+    margin-bottom: 1.25rem;
+}
+
+.form-group label {
+    display: block;
+    margin-bottom: 0.4rem;
+    font-weight: 600;
+    font-size: 0.95rem;
+    color: #374151;
+}
+
+.input-container {
+    position: relative;
+    width: 100%;
+}
+
+.input-icon {
+    position: absolute;
+    left: 1rem;
+    top: 50%;
+    transform: translateY(-50%);
+    color: #9ca3af;
+    font-size: 1.1rem;
+    pointer-events: none;
+    z-index: 1;
+}
+
+/* Eingabefelder & Selects */
+input[type="text"],
+input[type="password"],
+input[type="file"],
+.form-select {
+    width: 100%;
+    padding: 0.75rem 1rem 0.75rem 2.8rem;
+    border: 1px solid #d1d5db;
+    border-radius: var(--border-radius);
+    font-size: 0.95rem;
+    background-color: #ffffff;
+    transition: var(--transition);
+    box-sizing: border-box;
+}
+
+input[type="text"]:focus,
+input[type="password"]:focus,
+input[type="file"]:focus,
+.form-select:focus {
+    border-color: var(--primary-color);
+    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
+    outline: none;
+}
+
+.form-select {
+    padding-left: 1rem;
+    cursor: pointer;
+}
+
+/* Stylings für den CSV-Datei-Upload */
+input[type="file"] {
+    padding-left: 2.8rem;
+    cursor: pointer;
+}
+
+input[type="file"]::file-selector-button {
+    padding: 0.35rem 0.75rem;
+    border-radius: 4px;
+    border: 1px solid #d1d5db;
+    background: #f3f4f6;
+    color: #374151;
+    cursor: pointer;
+    margin-right: 12px;
+    font-weight: 500;
+    transition: var(--transition);
+}
+
+input[type="file"]::file-selector-button:hover {
+    background: #e5e7eb;
+}
+
+input::placeholder {
+    color: #9ca3af;
+}
+
+code {
+    background: #e0f2fe;
+    color: #0369a1;
+    padding: 2px 6px;
+    border-radius: 4px;
+    font-family: monospace;
+    font-size: 0.9em;
+}
+
+/* Buttons */
+.form-actions {
+    margin-top: 1.5rem;
+}
+
+.action-button {
+    background-color: var(--primary-color);
+    color: white;
+    border: none;
+    padding: 0.8rem 1.5rem;
+    border-radius: var(--border-radius);
+    cursor: pointer;
+    font-weight: 600;
+    transition: var(--transition);
+    width: 100%;
+    font-size: 1rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+}
+
+.action-button:hover {
+    background-color: var(--primary-dark);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+}
+
+.register-button {
+    background-color: var(--success-color);
+}
+
+.register-button:hover {
+    background-color: var(--success-dark);
+}
+
+/* Toggle-Button für Passwort-Auge */
+.input-wrapper {
+    position: relative;
+    width: 100%;
+}
+
+.toggle-pw-btn {
+    position: absolute;
+    right: 0.75rem;
+    top: 50%;
+    transform: translateY(-50%);
+    background: none;
+    border: none;
+    cursor: pointer;
+    font-size: 1.1rem;
+    padding: 4px;
+    z-index: 2;
+    opacity: 0.7;
+    transition: opacity 0.2s;
+}
+
+.toggle-pw-btn:hover {
+    opacity: 1;
+}
+
+/* Passwort-Regeln Box */
+.password-rules {
+    margin-bottom: 10px;
+    padding: 10px 12px;
+    border: 1px solid #e5e7eb;
+    border-radius: 8px;
+    background: #ffffff;
+}
+
+.password-rules-title {
+    margin: 0 0 6px;
+    font-weight: 700;
+    color: #1f2937;
+    font-size: 0.88rem;
+}
+
+.password-rules ul {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+}
+
+.pw-rule {
+    position: relative;
+    padding-left: 20px;
+    margin: 4px 0;
+    color: #dc2626;
+    font-size: 0.85rem;
+}
+
+.pw-rule::before {
+    content: '✗';
+    position: absolute;
+    left: 0;
+    top: 0;
+    font-weight: 700;
+}
+
+.pw-rule.ok {
+    color: #166534;
+}
+
+.pw-rule.ok::before {
+    content: '✓';
+}
+
+.pw-actions {
+    display: flex;
+    gap: 8px;
+    margin-top: 8px;
+}
+
+.btn-secondary {
+    padding: 6px 12px;
+    border: 1px solid #d1d5db;
+    background-color: #ffffff;
+    color: #374151;
+    border-radius: 6px;
+    cursor: pointer;
+    font-size: 0.88rem;
+    font-weight: 500;
+    transition: var(--transition);
+}
+
+.btn-secondary:hover {
+    background-color: #f3f4f6;
+    border-color: #9ca3af;
+}
+
+/* Hinweise & Rechte-Panels */
+.anonymize-hint {
+    margin-top: 8px;
+    margin-bottom: 0;
+    background: #f0f9ff;
+    border: 1px solid #bae6fd;
+    border-radius: 6px;
+    padding: 8px 12px;
+    color: #0369a1;
+    font-size: 0.88rem;
+}
+
+.permission-panels {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+    gap: 12px;
+}
+
+.permission-panel {
+    border: 1px solid #d1d5db;
+    border-radius: 8px;
+    padding: 12px;
+    background: #ffffff;
+}
+
+.permission-panel h4 {
+    margin: 0 0 8px;
+    font-size: 0.95rem;
+    color: #1f2937;
+}
+
+.permission-check {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    margin: 6px 0;
+    color: #374151;
+    font-size: 0.9rem;
+    cursor: pointer;
+}
+
+/* Flash Nachrichten */
+.flash-container {
+    margin-bottom: 1.5rem;
+}
+
+.flash {
+    display: flex;
+    align-items: center;
+    padding: 0.9rem 1rem;
+    margin-bottom: 1rem;
+    border-radius: var(--border-radius);
+    animation: fadeIn 0.3s ease-in-out;
+}
+
+.flash-icon {
+    margin-right: 0.8rem;
+    font-size: 1rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 22px;
+    height: 22px;
+    border-radius: 50%;
+    background-color: rgba(255, 255, 255, 0.4);
+}
+
+.flash.success {
+    background-color: #d1fae5;
+    color: #065f46;
+    border-left: 4px solid var(--csv-color);
+}
+
+.flash.error {
+    background-color: #fee2e2;
+    color: #991b1b;
+    border-left: 4px solid var(--error-color);
+}
+
+@keyframes fadeIn {
+    from { opacity: 0; transform: translateY(-8px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+@media (max-width: 768px) {
+    .container {
+        padding: 0 0.75rem;
+        margin: 1rem auto;
+    }
+
+    .content {
+        padding: 1rem;
+    }
+
+    .form-card {
+        padding: 1rem;
+    }
+
+    .header-section h1 {
+        font-size: 1.8rem;
+    }
+}
+</style>
 {% endblock %}

Web/templates/student_card_barcode_print.html

@@ -11,7 +11,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Schülerausweis - Barcode PDF Download</title>
+    <title>Bibliotheksausweis - Barcode PDF Download</title>
     <style>
         * {
             margin: 0;
@@ -123,7 +123,7 @@
 <body>
     <div class="container">
         <div class="icon">📇</div>
-        <h1>Schülerausweis-Download</h1>
+        <h1>Bibliotheksausweis-Download</h1>
         <p>Generieren Sie eine PDF mit Barcodes aller Bibliotheksausweise zum direkten Drucken</p>
 
         <div class="info-box">

Web/templates/student_cards_admin.html

@@ -232,6 +232,16 @@
             <h1>📚 Bibliotheksausweise (Bibliothek)</h1>
         </div>
         <div class="export-buttons">
+            <form method="GET" action="{{ url_for('student_card_class_barcode_download') }}" style="display: inline-flex; gap: 5px; align-items: center; background: white; padding: 2px; border-radius: 4px; border: 1px solid #ddd;">
+                <select name="class_name" required style="border: none; padding: 8px; outline: none; font-size: 14px; background: transparent; cursor: pointer;">
+                    <option value="" disabled selected>-- Klasse wählen --</option>
+                    {% for cls in available_classes %}
+                        <option value="{{ cls }}">{{ cls }}</option>
+                    {% endfor %}
+                </select>
+                <button type="submit" class="btn-print" style="background: #17a2b8; padding: 8px 12px; margin: 0;">📤 PDF</button>
+            </form>
+
             <a href="{{ url_for('student_card_barcode_download') }}" class="btn-print" style="background: #28a745;">📥 Alle Ausweise (PDF)</a>
             <a href="{{ url_for('library_admin') }}" class="btn btn-primary">← Zur Bibliotheks-Upload</a>
         </div>
@@ -249,7 +259,7 @@
 
     <!-- Add/Edit Form -->
     <div class="student-card-form">
-        <h2>{% if edit_mode %}Ausweis bearbeiten{% else %}Neuer Schülerausweis{% endif %}</h2>
+        <h2>{% if edit_mode %}Ausweis bearbeiten{% else %}Neuer Bibliotheksausweis{% endif %}</h2>
         
         <form method="POST" action="{{ url_for('student_cards_admin') }}">
             {% if edit_mode %}
@@ -283,9 +293,15 @@
                 </div>
                 <div class="form-group">
                     <label for="class_name">Klasse</label>
-                    <input type="text" id="class_name" name="class_name"
+                    <input type="text" id="class_name" name="class_name" list="class_list"
                            value="{{ form_data.get('class_name', '') }}"
-                           placeholder="z.B. 10A">
+                           placeholder="z.B. 10A (Tippen oder Auswählen)">
+
+                    <datalist id="class_list">
+                        {% for cls in available_classes %}
+                            <option value="{{ cls }}">
+                        {% endfor %}
+                    </datalist>
                 </div>
             </div>
 

Web/templates/upload_admin.html

@@ -11,59 +11,6 @@
 {% block title %}{{ page_title|default('Artikel hochladen') }} - Inventarsystem{% endblock %}
 
 {% block content %}
-{% if duplicate_data and duplicate_data.images %}
-<!-- Hidden server-side values for duplication, will be processed by JavaScript -->
-<div id="server-duplicate-data" 
-     data-name="{{ duplicate_data.name|default('') }}"
-     data-description="{{ duplicate_data.description|default('') }}"
-     data-location="{{ duplicate_data.location|default('') }}"
-     data-room="{{ duplicate_data.room|default('') }}"
-     data-year="{{ duplicate_data.year|default('') }}"
-     data-cost="{{ duplicate_data.cost|default('') }}"
-     data-images="{{ duplicate_data.images|tojson|safe }}"
-     data-filter1="{{ duplicate_data.filter1|tojson|safe if duplicate_data.filter1 else '[]' }}"
-     data-filter2="{{ duplicate_data.filter2|tojson|safe if duplicate_data.filter2 else '[]' }}"
-     data-filter3="{{ duplicate_data.filter3|tojson|safe if duplicate_data.filter3 else '[]' }}"
-     data-original-id="{{ duplicate_data.original_id|default('') }}"
-     style="display:none;">
-</div>
-<script>
-    // Pre-initialize duplicate data from server
-    var serverDuplicateData = null;
-    const dataElement = document.getElementById('server-duplicate-data');
-    if (dataElement) {
-        // Safely parse JSON arrays with error handling
-        function safeJsonParse(jsonStr, defaultValue = []) {
-            try {
-                if (!jsonStr) return defaultValue;
-                return JSON.parse(jsonStr);
-            } catch (e) {
-                console.error("Error parsing JSON:", e, "Value was:", jsonStr);
-                return defaultValue;
-            }
-        }
-        
-        // Get images data and log it for debugging
-        const imagesData = dataElement.getAttribute('data-images') || "[]";
-        console.log("Raw images data attribute:", imagesData);
-        
-        serverDuplicateData = {
-            name: dataElement.getAttribute('data-name') || "",
-            description: dataElement.getAttribute('data-description') || "",
-            location: dataElement.getAttribute('data-location') || "",
-            room: dataElement.getAttribute('data-room') || "",
-            year: dataElement.getAttribute('data-year') || "",
-            cost: dataElement.getAttribute('data-cost') || "",
-            images: safeJsonParse(imagesData),
-            filter1: safeJsonParse(dataElement.getAttribute('data-filter1')),
-            filter2: safeJsonParse(dataElement.getAttribute('data-filter2')),
-            filter3: safeJsonParse(dataElement.getAttribute('data-filter3')),
-            original_id: dataElement.getAttribute('data-original-id') || ""
-        };
-        console.log("Server-provided duplicate data:", serverDuplicateData);
-    }
-</script>
-{% endif %}
 
 <style>
     /* Book information display styles */
@@ -296,38 +243,11 @@
         color: #721c24 !important;
     }
 
-    /* Duplicate code popup styling */
-    .popup-overlay {
-        position: fixed;
-        top: 0;
-        left: 0;
-        width: 100%;
-        height: 100%;
-        background-color: rgba(0, 0, 0, 0.6);
-        z-index: 10000;
-        display: flex;
-        justify-content: center;
-        align-items: center;
-        animation: overlayFadeIn 0.3s ease;
-    }
-
     @keyframes overlayFadeIn {
         from { opacity: 0; }
         to { opacity: 1; }
     }
 
-    .duplicate-code-popup {
-        background-color: white;
-        padding: 30px;
-        border-radius: 8px;
-        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
-        max-width: 500px;
-        width: 90%;
-        text-align: center;
-        position: relative;
-        animation: popupSlideIn 0.3s ease;
-    }
-
     @keyframes popupSlideIn {
         from { 
             opacity: 0; 
@@ -761,6 +681,21 @@
         <h1>{{ page_title|default('Artikel hochladen') }}</h1>
         <form method="POST" action="{{ url_for('upload_item') }}" enctype="multipart/form-data">
             <input type="hidden" name="upload_mode" value="{{ upload_mode|default('item') }}">
+
+            {% if show_library_features %}
+            <div class="form-group">
+                <label for="isbn">ISBN/Barcode (für Bild-Suche):</label>
+                <div class="isbn-input-group">
+                    <input type="text" id="isbn" name="isbn" placeholder="ISBN oder Barcode eingeben..." required>
+                    <button type="button" id="scan-isbn-btn" class="fetch-isbn-button">Barcode scannen</button>
+                    <button type="button" class="fetch-isbn-button" onclick="fetchBookInfo('upload')">Informationen abrufen</button>
+                </div>
+                <div id="isbn-scanner" style="width:100%; max-width:520px; display:none; margin-top:10px;"></div>
+                <small id="isbn-scan-status" style="display:block; color:#666; margin-top:6px;">Scannen oder manuell eingeben. Gültige ISBNs helfen beim Abruf von Buchdaten, andere Codes werden trotzdem akzeptiert.</small>
+                <div id="book-info-container" class="book-info-container"></div>
+            </div>
+            {% endif %}
+
             <div class="form-group">
                 <label for="name">Name:</label>
                 <input type="text" id="name" name="name" required>
@@ -785,6 +720,43 @@
                 <textarea id="beschreibung" name="beschreibung" required></textarea>
             </div>
 
+            <div class="form-group">
+                <label for="scan_mode">Erfassungs-Modus:</label>
+                <select id="scan_mode" name="scan_mode" class="form-control" onchange="toggleScanMode()">
+                    <option value="single">Einzel-Code (Scanner stoppt nach 1 Scan) ↓ </option>
+                    <option value="continuous">Fortlaufend scannen (Mehrere Codes nacheinander)</option>
+                    <option value="range">Code-Bereich generieren (z.B. ABC-001 bis ABC-010)</option>
+                </select>
+            </div>
+
+            <div id="range_generator_group" class="form-group" style="display:none; background: #f9f9f9; padding: 15px; border-radius: 5px; border: 1px solid #ddd; margin-bottom: 15px;">
+                <label style="font-weight: bold;">Code-Bereich automatisch generieren:</label>
+                <div style="display: flex; gap: 10px; margin-bottom: 10px; align-items: center;">
+                    <input type="text" id="range_prefix" placeholder="Präfix optional (z.B. IT-)" class="form-control" style="flex: 2;">
+                    <input type="number" id="range_start" placeholder="Start (z.B. 1)" class="form-control" style="flex: 1;">
+                    <span style="font-weight: bold;">bis</span>
+                    <input type="text" id="range_end" placeholder="Ende (z.B. 020)" class="form-control" style="flex: 1;">
+                </div>
+                <small style="display:block; color:#666; margin-bottom: 10px;">Tipp: Der Präfix ist optional. Die Anzahl der Ziffern im "Ende"-Feld bestimmt die führenden Nullen (z.B. Ende "050" macht aus Start "1" einen "001").</small>
+                <button type="button" class="btn btn-secondary" onclick="generateCodeRange()">Bereich generieren & einfügen</button>
+            </div>
+
+            <div class="form-group" id="primary_code_group">
+                <label for="code_4">Basis-Code</label>
+                <div style="display: flex; gap: 10px;">
+                    <input type="text" id="code_4" name="code_4" class="form-control" placeholder="Haupt-Barcode" required>
+                    <button type="button" id="scan-code4-btn" class="btn btn-primary">Barcode scannen</button>
+                </div>
+                <div id="code4-scanner" style="display:none; margin-top: 10px;"></div>
+                <small id="code4-scan-status" class="form-text text-muted"></small>
+            </div>
+
+            <div class="form-group" id="individual_codes_group">
+                <label for="individual_codes">Weitere Einzelcodes (je Zeile ein Code)</label>
+                <textarea id="individual_codes" name="individual_codes" rows="6" placeholder="z.B.&#10;ABC-001&#10;ABC-002" class="form-control"></textarea>
+                <small style="display:block; color:#666; margin-top: 5px;">Bei Anzahl > 1 können hier individuelle Codes pro Item gesetzt werden. Der Scanner setzt immer zuerst den Basis-Code im Feld oben; weitere Einzelcodes werden hier angehängt.</small>
+            </div>
+
             {% if show_library_features %}
             <!-- Library Mode: Single Customizable Filter -->
             <div class="filter-inputs">
@@ -800,9 +772,9 @@
                     </select>
                     <small style="display:block; color:#666;">Wählen Sie einen Medientyp aus zur Klassifizierung.</small>
                 </div>
-                <h3>Kategorie/Typ:</h3>
+                <h3>Kategorie/Typ/Fach:</h3>
                 <div class="form-group">
-                    <input type="text" name="library_category" id="library_category" placeholder="z.B. Belletristik, Sachbücher, Nachschlagewerke, etc.">
+                    <input type="text" name="library_category" id="library_category" placeholder="z.B. Belletristik, Sachbücher, Nachschlagewerke, etc. (optional)">
                     <small style="display:block; color:#666;">Geben Sie hier eine beliebige Kategorie ein zur freien Klassifizierung.</small>
                 </div>
             </div>
@@ -864,7 +836,7 @@
                             <!-- Options will be loaded by JavaScript -->
                         </select>
                     </div>
-                    <div class="formupload_admin-group">
+                    <div class="form-group">
                         <label for="filter2-4">Wert 4:</label>
                         <select id="filter2-4" name="filter2" class="filter-dropdown-select">
                             <option value="">-- Optional --</option>
@@ -902,71 +874,24 @@
                 <label for="anschaffungskosten">Anschaffungskosten (€)</label>
                 <input id="anschaffungskosten" name="anschaffungskosten">
             </div>
+
+
             <div class="form-group">
-                <label for="scan_mode">Erfassungs-Modus:</label>
+                <label>Buchcover (automatisch):</label>
-                <select id="scan_mode" name="scan_mode" class="form-control" onchange="toggleScanMode()">
+                <div id="book-cover-preview-container"></div>
-                    <option value="single">Einzel-Code (Scanner stoppt nach 1 Scan)</option>
-                    <option value="continuous">Fortlaufend scannen (Mehrere Codes nacheinander)</option>
-                    <option value="range">Code-Bereich generieren (z.B. ABC-001 bis ABC-010)</option>
-                </select>
             </div>
-
+            <div class="form-group">
-            <div id="range_generator_group" class="form-group" style="display:none; background: #f9f9f9; padding: 15px; border-radius: 5px; border: 1px solid #ddd; margin-bottom: 15px;">
+                <label for="images"> Bilder hinzufügen:</label>
-                <label style="font-weight: bold;">Code-Bereich automatisch generieren:</label>
+                <input type="file" id="images" name="images" accept=".jpg, .jpeg, .png, .gif" multiple>
-                <div style="display: flex; gap: 10px; margin-bottom: 10px; align-items: center;">
+                <div class="allowed-formats">Erlaubte Formate: JPG, JPEG, PNG, GIF</div>
-                    <input type="text" id="range_prefix" placeholder="Präfix (z.B. IT-)" class="form-control" style="flex: 2;">
-                    <input type="number" id="range_start" placeholder="Start (z.B. 1)" class="form-control" style="flex: 1;">
-                    <span style="font-weight: bold;">bis</span>
-                    <input type="text" id="range_end" placeholder="Ende (z.B. 020)" class="form-control" style="flex: 1;">
-                </div>
-                <small style="display:block; color:#666; margin-bottom: 10px;">Tipp: Die Anzahl der Ziffern im "Ende"-Feld bestimmt die führenden Nullen (z.B. Ende "050" macht aus Start "1" einen "001").</small>
-                <button type="button" class="btn btn-secondary" onclick="generateCodeRange()">Bereich generieren & einfügen</button>
-            </div>
-
-            <div class="form-group" id="primary_code_group">
-                <label for="code_4">Basis-Code</label>
-                <div style="display: flex; gap: 10px;">
-                    <input type="text" id="code_4" name="code_4" class="form-control" placeholder="Haupt-Barcode" required>
-                    <button type="button" id="scan-code4-btn" class="btn btn-primary">Barcode scannen</button>
-                </div>
-                <div id="code4-scanner" style="display:none; margin-top: 10px;"></div>
-                <small id="code4-scan-status" class="form-text text-muted"></small>
-            </div>
-
-            <div class="form-group" id="individual_codes_group">
-                <label for="individual_codes">Weitere Einzelcodes (je Zeile ein Code)</label>
-                <textarea id="individual_codes" name="individual_codes" rows="6" placeholder="z.B.&#10;ABC-001&#10;ABC-002" class="form-control"></textarea>
-                <small style="display:block; color:#666; margin-top: 5px;">Bei Anzahl > 1 können hier individuelle Codes pro Item gesetzt werden. Der Scanner setzt immer zuerst den Basis-Code im Feld oben; weitere Einzelcodes werden hier angehängt.</small>
-            </div>
-            <!-- Image upload (hidden for library mode) -->
-            <div class="form-group" {% if show_library_features %}style="display:none;"{% endif %}>
-                <label for="images">Bilder/Videos:</label>
-                <input type="file" id="images" name="images" accept=".jpg, .jpeg, .png, .gif, .mp4, .mov, .avi, .mkv, .webm, .flv, .m4v, .3gp" multiple>
-                <div class="allowed-formats">Erlaubte Formate: JPG, JPEG, PNG, GIF, MP4, MOV, AVI, MKV, WEBM, FLV, M4V, 3GP</div>
-                <!-- Add image preview area -->
                 <div class="image-preview-container" id="image-preview-container"></div>
             </div>
 
-            <!-- ISBN fields (library page only) -->
-            {% if show_library_features %}
-            <div class="form-group">
-                <label for="isbn">ISBN/Barcode (für Bild-Suche):</label>
-                <div class="isbn-input-group">
-                    <input type="text" id="isbn" name="isbn" placeholder="ISBN oder Barcode eingeben..." required>
-                    <button type="button" id="scan-isbn-btn" class="fetch-isbn-button">Barcode scannen</button>
-                    <button type="button" class="fetch-isbn-button" onclick="fetchBookInfo('upload')">Informationen abrufen</button>
-                </div>
-                <div id="isbn-scanner" style="width:100%; max-width:520px; display:none; margin-top:10px;"></div>
-                <small id="isbn-scan-status" style="display:block; color:#666; margin-top:6px;">Scannen oder manuell eingeben. Gültige ISBNs helfen beim Abruf von Buchdaten, andere Codes werden trotzdem akzeptiert.</small>
-                <div id="book-info-container" class="book-info-container"></div>
-            </div>
-            
             <div class="form-group">
                 <label for="reservierbar" style="display:inline-block; width:auto; margin-right:10px;">Reservierbar:</label>
                 <input type="checkbox" id="reservierbar" name="reservierbar" style="width:auto;">
                 <small style="display:block; color:#666;">Wenn deaktiviert, kann der Artikel nicht im Voraus reserviert werden (Sofort-Ausleihe bleibt möglich).</small>
             </div>
-            {% endif %}
 
             <button type="submit" class="submit-button">{{ 'Bücher hochladen' if show_library_features else 'Artikel hochladen' }}</button>
         </form>
@@ -1023,6 +948,90 @@
 <script>
     const libraryModuleEnabled = {{ 'true' if library_module_enabled else 'false' }};
 
+    function getFocusableFormFields(form) {
+        if (!form) return [];
+        return Array.from(form.querySelectorAll('input, select, textarea, button'))
+            .filter((element) => {
+                if (element.disabled || element.getAttribute('aria-hidden') === 'true') return false;
+                const style = window.getComputedStyle(element);
+                if (style.display === 'none' || style.visibility === 'hidden') return false;
+                const tagName = element.tagName.toLowerCase();
+                const type = (element.type || '').toLowerCase();
+                return tagName !== 'button' || type !== 'button';
+            });
+    }
+
+    function focusNextFormField(currentField) {
+        const form = currentField && currentField.form ? currentField.form : null;
+        const fields = getFocusableFormFields(form || document);
+        const currentIndex = fields.indexOf(currentField);
+
+        if (currentIndex >= 0) {
+            for (let i = currentIndex + 1; i < fields.length; i++) {
+                const nextField = fields[i];
+                const nextStyle = window.getComputedStyle(nextField);
+                if (nextStyle.display !== 'none' && nextStyle.visibility !== 'hidden') {
+                    nextField.focus();
+                    if (nextField.tagName.toLowerCase() === 'select') {
+                        nextField.click();
+                    }
+                    return true;
+                }
+            }
+        }
+
+        if (form) {
+            const submitButton = form.querySelector('button[type="submit"]');
+            if (submitButton) {
+                submitButton.focus();
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    function handleIsbnLookupFromScanner() {
+        const isbnField = document.getElementById('isbn');
+        if (!isbnField) return false;
+
+        const normalizedIsbn = typeof normalizeIsbnClient === 'function' ? normalizeIsbnClient(isbnField.value) : isbnField.value.trim();
+        if (!normalizedIsbn) return false;
+
+        if (typeof updateIsbnLiveValidation === 'function') {
+            updateIsbnLiveValidation();
+        }
+
+        if (typeof fetchBookInfo === 'function') {
+            fetchBookInfo('upload');
+        }
+
+        return true;
+    }
+
+    document.addEventListener('DOMContentLoaded', function () {
+        document.querySelectorAll('form').forEach(function (form) {
+            form.addEventListener('keydown', function (event) {
+                const target = event.target;
+                if (event.key !== 'Enter') return;
+                if (!target || target.tagName === 'TEXTAREA' && !event.shiftKey) return;
+                const tagName = target.tagName.toLowerCase();
+                const type = (target.type || '').toLowerCase();
+                if (!['input', 'select', 'textarea'].includes(tagName)) return;
+                if (['button', 'submit', 'reset', 'file', 'checkbox', 'radio', 'hidden'].includes(type)) return;
+
+                event.preventDefault();
+
+                if (target.id === 'isbn' || target.name === 'isbn') {
+                    handleIsbnLookupFromScanner();
+                    return;
+                }
+
+                focusNextFormField(target);
+            });
+        });
+    });
+
     // Function to check if a file is a video
     function isVideoFile(filename) {
         const videoExtensions = ['.mp4', '.mov', '.avi', '.mkv', '.webm', '.flv', '.m4v', '.3gp'];
@@ -1194,7 +1203,7 @@
         let generatedCodes = [];
         for (let i = start; i <= end; i++) {
             let numStr = i.toString().padStart(paddingLength, '0');
-            generatedCodes.push(`${prefix}${numStr}`);
+            generatedCodes.push(prefix ? `${prefix}${numStr}` : numStr);
         }
 
         const codeField = document.getElementById('code_4');
@@ -1384,11 +1393,33 @@
             scanModeSelect.addEventListener('change', toggleScanMode);
         }
 
-        // 4. ISBN Live-Validierung
+        // 4. ISBN Live-Validierung und automatische Abfrage nach Scan/Enter
         const isbnInput = document.getElementById('isbn');
-        if (isbnInput && typeof updateIsbnLiveValidation === 'function') {
+        if (isbnInput) {
+            if (typeof updateIsbnLiveValidation === 'function') {
                 isbnInput.addEventListener('input', updateIsbnLiveValidation);
             }
+
+            let isbnLookupTimer = null;
+            isbnInput.addEventListener('input', function () {
+                clearTimeout(isbnLookupTimer);
+                const normalizedIsbn = typeof normalizeIsbnClient === 'function' ? normalizeIsbnClient(isbnInput.value) : isbnInput.value.trim();
+                if (normalizedIsbn) {
+                    isbnLookupTimer = setTimeout(function () {
+                        handleIsbnLookupFromScanner();
+                    }, 250);
+                }
+            });
+
+            isbnInput.addEventListener('change', function () {
+                if (typeof normalizeIsbnClient === 'function') {
+                    const normalizedIsbn = normalizeIsbnClient(isbnInput.value);
+                    if (normalizedIsbn) {
+                        handleIsbnLookupFromScanner();
+                    }
+                }
+            });
+        }
     });
     // Load predefined filter values for dropdowns
     function loadPredefinedFilterValues(filterNumber) {
@@ -1640,23 +1671,24 @@
         }, 3000);
     }
 
-    // Function to download book cover image
     function downloadBookCover(imageUrl) {
         if (!imageUrl) {
             console.log('No image URL provided');
             return;
         }
 
-        // Show loading indicator for image download
+        const coverPreviewContainer = document.getElementById('book-cover-preview-container');
-        const imagePreviewContainer = document.getElementById('image-preview-container');
+
-        if (imagePreviewContainer) {
+        if (!coverPreviewContainer) {
+            console.error('Error: "book-cover-preview-container" not found in the DOM.');
+            return;
+        }
+
         const loadingDiv = document.createElement('div');
         loadingDiv.className = 'image-loading';
         loadingDiv.innerHTML = '<div class="loading-spinner">Buchcover wird heruntergeladen...</div>';
-            imagePreviewContainer.appendChild(loadingDiv);
+        coverPreviewContainer.appendChild(loadingDiv);
-        }
 
-        // Download the image via backend
         fetch('/download_book_cover', {
             method: 'POST',
             headers: {
@@ -1666,76 +1698,61 @@
         })
             .then(response => response.json())
             .then(data => {
-            // Remove loading indicator
+                const currentLoadingDiv = coverPreviewContainer.querySelector('.image-loading');
-            const loadingDiv = imagePreviewContainer?.querySelector('.image-loading');
+                if (currentLoadingDiv) {
-            if (loadingDiv) {
+                    currentLoadingDiv.remove();
-                loadingDiv.remove();
                 }
 
                 if (data.success) {
-                // Create a preview of the downloaded image
+                    coverPreviewContainer.innerHTML = '';
+
                     const imagePreview = document.createElement('div');
                     imagePreview.className = 'book-cover-preview';
                     imagePreview.innerHTML = `
                 <div class="preview-item">
-                        <img src="{{ url_for('uploaded_file', filename='') }}${data.filename}" 
+                    <img src="/uploads/${data.filename}"
-                             alt="Buchcover" class="book-cover-thumbnail">
+                         alt="Buchcover" class="book-cover-thumbnail" style="max-width: 150px; border-radius: 4px;">
-                        <p class="book-cover-caption">Buchcover automatisch heruntergeladen</p>
+                    <p class="book-cover-caption" style="font-size: 0.9em; color: #555;">Buchcover automatisch heruntergeladen</p>
                     <input type="hidden" name="book_cover_image" value="${data.filename}">
                     <button type="button" onclick="removeBookCover(this)"
-                                class="remove-book-cover-button">
+                            class="remove-book-cover-button btn btn-sm btn-danger">
                         Entfernen
                     </button>
                 </div>
             `;
 
-                if (imagePreviewContainer) {
+                    coverPreviewContainer.appendChild(imagePreview);
-                    imagePreviewContainer.appendChild(imagePreview);
-                }
-                
                     console.log('Book cover downloaded successfully:', data.filename);
                 } else {
                     console.error('Failed to download book cover:', data.error);
-                // Show error message to user
+                    showCoverError(coverPreviewContainer, 'Fehler beim Herunterladen des Buchcovers: ' + data.error);
-                if (imagePreviewContainer) {
-                    const errorDiv = document.createElement('div');
-                    errorDiv.className = 'error-message';
-                    errorDiv.textContent = 'Fehler beim Herunterladen des Buchcovers: ' + data.error;
-                    errorDiv.style.fontSize = '0.8em';
-                    errorDiv.style.padding = '5px';
-                    errorDiv.style.marginTop = '5px';
-                    imagePreviewContainer.appendChild(errorDiv);
-                    
-                    // Remove error message after 5 seconds
-                    setTimeout(() => errorDiv.remove(), 5000);
-                }
                 }
             })
             .catch(error => {
                 console.error('Error downloading book cover:', error);
-            // Remove loading indicator
+
-            const loadingDiv = imagePreviewContainer?.querySelector('.image-loading');
+                const currentLoadingDiv = coverPreviewContainer.querySelector('.image-loading');
-            if (loadingDiv) {
+                if (currentLoadingDiv) {
-                loadingDiv.remove();
+                    currentLoadingDiv.remove();
                 }
 
-            // Show error message
+                showCoverError(coverPreviewContainer, 'Netzwerkfehler beim Herunterladen des Buchcovers');
-            if (imagePreviewContainer) {
-                const errorDiv = document.createElement('div');
-                errorDiv.className = 'error-message';
-                errorDiv.textContent = 'Netzwerkfehler beim Herunterladen des Buchcovers';
-                errorDiv.style.fontSize = '0.8em';
-                errorDiv.style.padding = '5px';
-                errorDiv.style.marginTop = '5px';
-                imagePreviewContainer.appendChild(errorDiv);
-                
-                // Remove error message after 5 seconds
-                setTimeout(() => errorDiv.remove(), 5000);
-            }
             });
     }
 
-    // Function to remove downloaded book cover
+    function showCoverError(container, message) {
+        const errorDiv = document.createElement('div');
+        errorDiv.className = 'error-message';
+        errorDiv.textContent = message;
+        errorDiv.style.fontSize = '0.8em';
+        errorDiv.style.color = 'red';
+        errorDiv.style.padding = '5px';
+        errorDiv.style.marginTop = '5px';
+        container.appendChild(errorDiv);
+
+        setTimeout(() => errorDiv.remove(), 5000);
+    }
+
     function removeBookCover(button) {
         const previewItem = button.closest('.preview-item');
         if (previewItem) {
@@ -1743,7 +1760,6 @@
         }
     }
 
-    // Code validation functions
     function checkCodeUnique(code, excludeId, callback) {
         if (!code || code.trim() === '') {
             callback(true);
@@ -1835,21 +1851,18 @@
 
                 const files = e.target.files;
 
-                // Validate file types before preview
+                // Validate file types before preview (Strictly Images)
-                const allowedTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/gif', 
+                const allowedTypes = ['image/jpeg', 'image/jpg', 'image/png', 'image/gif'];
-                                    'video/mp4', 'video/quicktime', 'video/x-msvideo', 'video/x-matroska', 
-                                    'video/webm', 'video/x-flv', 'video/mp4', 'video/3gpp'];
-                let hasInvalidFile = false;
 
                 for (let i = 0; i < files.length; i++) {
                     if (!allowedTypes.includes(files[i].type)) {
-                        hasInvalidFile = true;
                         // Clear the file input to prevent submission
                         imageInput.value = '';
-                        previewContainer.innerHTML = '<div class="error-message">Fehler: Datei "' + files[i].name + '" hat ein nicht unterstütztes Format. Erlaubte Formate: JPG, JPEG, PNG, GIF, MP4, MOV, AVI, MKV, WEBM, FLV, M4V, 3GP</div>';
+                        previewContainer.innerHTML = '<div class="error-message">Fehler: Datei "' + files[i].name + '" hat ein nicht unterstütztes Format. Erlaubte Formate: JPG, JPEG, PNG, GIF</div>';
                         return; // Stop processing
                     }
                 }
+
                 for (let i = 0; i < files.length; i++) {
                     const file = files[i];
                     if (file.type.startsWith('image/')) {
@@ -1864,17 +1877,6 @@
                             previewContainer.appendChild(preview);
                         };
                         reader.readAsDataURL(file);
-                    } else if (file.type.startsWith('video/')) {
-                        const preview = document.createElement('div');
-                        preview.className = 'image-preview video-preview';
-                        preview.innerHTML = `
-                            <div class="video-placeholder">
-                                <div class="video-icon">🎥</div>
-                                <div class="video-name">${file.name}</div>
-                            </div>
-                            <button type="button" class="remove-image" onclick="removeImagePreview(this, ${i})">×</button>
-                        `;
-                        previewContainer.appendChild(preview);
                     }
                 }
             });
@@ -1940,34 +1942,6 @@
                 }
             });
         }
-        
-        // Handle duplication data if available (from sessionStorage or server)
-        if (typeof prefillFormWithDuplicateData === 'function') {
-            setTimeout(() => {
-                prefillFormWithDuplicateData();
-            }, 500); // Wait for all dropdowns to load
-        }
     });
-
-    // Initialize duplication data - handle both server-side and sessionStorage data
-    let duplicateData = null;
-    
-    // First check if serverDuplicateData is defined by the script above
-    if (typeof serverDuplicateData !== 'undefined' && serverDuplicateData) {
-        console.log("Using server-provided duplicateData:", serverDuplicateData);
-        duplicateData = serverDuplicateData;
-        
-        // Ensure images is properly handled as an array
-        if (duplicateData.images) {
-            if (typeof duplicateData.images === 'string') {
-                try {
-                    duplicateData.images = JSON.parse(duplicateData.images);
-                } catch (e) {
-                    console.error("Error parsing duplicate images array:", e);
-                }
-            }
-            console.log("Parsed duplicate images successfully.");
-        }
-    }
 </script>
 {% endblock %}

Web/templates/user_del.html

@@ -17,15 +17,11 @@
     <div class="user-management-container">
         <h2>Benutzer</h2>
 
-        <form method="POST" action="{{ url_for('admin_anonymize_names') }}" class="mb-3">
+        <div class="mb-3">
-            <button
+            <a href="{{ url_for('register') }}" class="btn btn-success">
-                type="submit"
+                Neuen Benutzer registrieren
-                class="btn btn-outline-danger"
+            </a>
-                onclick="return confirm('Sollen alle gespeicherten Klarnamen dauerhaft in Synonym-Kuerzel umgewandelt werden?')"
+        </div>
-            >
-                Gespeicherte Namen anonymisieren
-            </button>
-        </form>
 
         <div class="filter-bar mb-3">
             <div class="row g-2 align-items-end">

manage-tenant.sh

@@ -12,6 +12,250 @@ fi
 # Resolve script directory so config paths are deterministic even when called via sudo
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 CONFIG_FILE="$SCRIPT_DIR/config.json"
+NGINX_DOMAIN_BASE="${INVENTAR_TENANT_DOMAIN_BASE:-invario-software.de}"
+NGINX_PROXY_HOST="${INVENTAR_NGINX_PROXY_HOST:-172.17.0.1}"
+NGINX_SITES_AVAILABLE="${INVENTAR_NGINX_SITES_AVAILABLE:-/etc/nginx/sites-available}"
+NGINX_SITES_ENABLED="${INVENTAR_NGINX_SITES_ENABLED:-/etc/nginx/sites-enabled}"
+NGINX_SITE_PREFIX="${INVENTAR_NGINX_SITE_PREFIX:-inventarsystem}"
+CERTBOT_EMAIL="${INVENTAR_CERTBOT_EMAIL:-}"
+
+tenant_domain() {
+    printf '%s.%s' "$1" "$NGINX_DOMAIN_BASE"
+}
+
+tenant_nginx_site_path() {
+    printf '%s/%s-%s.conf' "$NGINX_SITES_AVAILABLE" "$NGINX_SITE_PREFIX" "$1"
+}
+
+tenant_nginx_enabled_path() {
+    printf '%s/%s-%s.conf' "$NGINX_SITES_ENABLED" "$NGINX_SITE_PREFIX" "$1"
+}
+
+run_host_command() {
+    if [ "$(id -u)" -eq 0 ]; then
+        "$@"
+    elif command -v sudo >/dev/null 2>&1; then
+        sudo "$@"
+    else
+        return 127
+    fi
+}
+
+reload_host_nginx() {
+    if command -v nginx >/dev/null 2>&1 || command -v sudo >/dev/null 2>&1; then
+        if ! run_host_command nginx -t; then
+            echo "Warning: nginx configuration test failed; skipping reload."
+            return 1
+        fi
+
+        if command -v systemctl >/dev/null 2>&1; then
+            if ! run_host_command systemctl reload nginx; then
+                echo "Warning: systemctl reload nginx failed."
+                return 1
+            fi
+        else
+            if ! run_host_command nginx -s reload; then
+                echo "Warning: nginx reload failed."
+                return 1
+            fi
+        fi
+    fi
+}
+
+write_tenant_nginx_config() {
+    local tenant_id="$1"
+    local port="$2"
+    local domain site_path enabled_path
+
+    domain="$(tenant_domain "$tenant_id")"
+    site_path="$(tenant_nginx_site_path "$tenant_id")"
+    enabled_path="$(tenant_nginx_enabled_path "$tenant_id")"
+
+    if [ -z "$port" ]; then
+        echo "Warning: No port configured for tenant '$tenant_id'; skipping nginx vhost creation."
+        return 0
+    fi
+
+    if ! run_host_command mkdir -p "$NGINX_SITES_AVAILABLE" "$NGINX_SITES_ENABLED"; then
+        echo "Warning: Unable to prepare nginx site directories; skipping reverse-proxy setup."
+        return 0
+    fi
+
+    local have_cert=false
+
+    if [ -f "/etc/letsencrypt/live/$domain/fullchain.pem" ] && [ -f "/etc/letsencrypt/live/$domain/privkey.pem" ]; then
+        have_cert=true
+    else
+        if [ "$(id -u)" -eq 0 ]; then
+            cat > "$site_path" <<EOF
+# ==========================================
+#  INVENTARSYSTEM ($tenant_id)
+# ==========================================
+server {
+    listen 80;
+    listen [::]:80;
+    server_name $domain;
+    client_max_body_size 100M;
+
+    location / {
+        proxy_pass http://$NGINX_PROXY_HOST:$port;
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+    }
+}
+EOF
+        else
+            sudo tee "$site_path" >/dev/null <<EOF
+# ==========================================
+#  INVENTARSYSTEM ($tenant_id)
+# ==========================================
+server {
+    listen 80;
+    listen [::]:80;
+    server_name $domain;
+    client_max_body_size 100M;
+
+    location / {
+        proxy_pass http://$NGINX_PROXY_HOST:$port;
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+    }
+}
+EOF
+        fi
+
+        if ! run_host_command ln -sfn "$site_path" "$enabled_path"; then
+            echo "Warning: Could not enable nginx site for tenant '$tenant_id'."
+            return 1
+        fi
+
+        if ! reload_host_nginx; then
+            echo "Warning: Initial nginx reload failed for tenant '$tenant_id'."
+        fi
+
+        if command -v certbot >/dev/null 2>&1 || command -v sudo >/dev/null 2>&1; then
+            local certbot_args=(certbot --nginx --non-interactive --agree-tos -d "$domain")
+            if [ -n "$CERTBOT_EMAIL" ]; then
+                certbot_args+=(--email "$CERTBOT_EMAIL")
+            else
+                certbot_args+=(--register-unsafely-without-email)
+            fi
+
+            if ! run_host_command "${certbot_args[@]}"; then
+                echo "Warning: certbot failed for tenant '$tenant_id'; keeping HTTP-only vhost for now."
+                return 1
+            fi
+
+            have_cert=true
+        fi
+    fi
+
+    if [ "$have_cert" != true ]; then
+        echo "Warning: No TLS certificate available for tenant '$tenant_id'; leaving HTTP-only nginx config in place."
+        return 1
+    fi
+
+    if [ "$(id -u)" -eq 0 ]; then
+        cat > "$site_path" <<EOF
+# ==========================================
+#  INVENTARSYSTEM ($tenant_id)
+# ==========================================
+server {
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    server_name $domain;
+    client_max_body_size 100M;
+
+    ssl_certificate /etc/letsencrypt/live/$domain/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/$domain/privkey.pem;
+
+    location / {
+        proxy_pass http://$NGINX_PROXY_HOST:$port;
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+    }
+}
+
+# Gezielte HTTP zu HTTPS Weiterleitung für $tenant_id
+server {
+    listen 80;
+    listen [::]:80;
+    server_name $domain;
+    return 301 https://$domain\$request_uri;
+}
+EOF
+    else
+        sudo tee "$site_path" >/dev/null <<EOF
+# ==========================================
+#  INVENTARSYSTEM ($tenant_id)
+# ==========================================
+server {
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    server_name $domain;
+    client_max_body_size 100M;
+
+    ssl_certificate /etc/letsencrypt/live/$domain/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/$domain/privkey.pem;
+
+    location / {
+        proxy_pass http://$NGINX_PROXY_HOST:$port;
+        proxy_set_header Host \$host;
+        proxy_set_header X-Real-IP \$remote_addr;
+        proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto \$scheme;
+    }
+}
+
+# Gezielte HTTP zu HTTPS Weiterleitung für $tenant_id
+server {
+    listen 80;
+    listen [::]:80;
+    server_name $domain;
+    return 301 https://$domain\$request_uri;
+}
+EOF
+    fi
+
+    if ! run_host_command ln -sfn "$site_path" "$enabled_path"; then
+        echo "Warning: Could not enable nginx site for tenant '$tenant_id'."
+        return 1
+    fi
+
+    if ! reload_host_nginx; then
+        echo "Warning: nginx reload after tenant '$tenant_id' configuration update failed."
+        return 1
+    fi
+}
+
+remove_tenant_nginx_config() {
+    local tenant_id="$1"
+    local domain site_path enabled_path
+
+    domain="$(tenant_domain "$tenant_id")"
+    site_path="$(tenant_nginx_site_path "$tenant_id")"
+    enabled_path="$(tenant_nginx_enabled_path "$tenant_id")"
+
+    if [ -f "$enabled_path" ] || [ -L "$enabled_path" ]; then
+        run_host_command rm -f "$enabled_path" || true
+    fi
+
+    if [ -f "$site_path" ]; then
+        run_host_command rm -f "$site_path" || true
+    fi
+
+    if command -v certbot >/dev/null 2>&1 || command -v sudo >/dev/null 2>&1; then
+        run_host_command certbot delete --cert-name "$domain" --non-interactive >/dev/null 2>&1 || true
+    fi
+
+    reload_host_nginx || true
+}
 
 ensure_runtime_config_json() {
     local config_path backup_path
@@ -505,15 +749,18 @@ ${YELLOW}Nutzung:${RESET} $0 <befehl> [tenant_id] [optionen]
 
 ${BLUE}${BOLD}VERFÜGBARE BEFEHLE:${RESET}
   ${GREEN}add${RESET} <tenant_id> [port]
-    Legt einen neuen Tenant an, registriert den Port und initialisiert 
+        Legt einen neuen Tenant an, registriert den Port, richtet den nginx-Host
+        für ${YELLOW}<tenant_id>.invario-software.de${RESET} ein und initialisiert
         die MongoDB-Datenbank mit einem Standard-Admin (${YELLOW}admin / admin123${RESET}).
 
   ${GREEN}trial${RESET} <tenant_id> [port] [tage]
     Erstellt einen temporären Test-Tenant. Standardlaufzeit: 7 Tage.
-    Läuft automatisch ab und löscht sich selbst.
+        Läuft automatisch ab, löscht sich selbst und bekommt die gleiche nginx/
+        Certbot-Anbindung wie ein normaler Tenant.
 
   ${GREEN}remove${RESET} [-y|--yes] <tenant_id>
-    Löscht einen Tenant, seine Konfiguration, Ports und die Datenbank.
+        Löscht einen Tenant, seine Konfiguration, Ports, nginx-VHost und das
+        zugehörige Let's-Encrypt-Zertifikat sowie die Datenbank.
     Nutze ${RED}-y${RESET}, um die Bestätigungsabfrage zu überspringen.
 
   ${GREEN}restart-tenant${RESET} <tenant_id>
@@ -574,11 +821,16 @@ case "$COMMAND" in
             register_tenant_port "$TENANT_ID" "$PORT_ARG"
             update_runtime_ports "$PORT_ARG"
             sync_tenant_port_map
+            if ! write_tenant_nginx_config "$TENANT_ID" "$PORT_ARG"; then
+                echo "Warning: nginx/certbot provisioning for '$TENANT_ID' could not be completed automatically."
+            fi
             if [ -n "$(docker ps -qf 'name=app' | head -n 1)" ]; then
                 restart_app_container
             fi
         fi
 
+        
+
         echo "Adding new tenant '$TENANT_ID'..."
         echo "Initializing database for $TENANT_ID..."
         initialize_tenant_database "$TENANT_ID" "standard"
@@ -603,6 +855,9 @@ case "$COMMAND" in
             register_tenant_port "$TENANT_ID" "$PORT_ARG"
             update_runtime_ports "$PORT_ARG"
             sync_tenant_port_map
+            if ! write_tenant_nginx_config "$TENANT_ID" "$PORT_ARG"; then
+                echo "Warning: nginx/certbot provisioning for trial tenant '$TENANT_ID' could not be completed automatically."
+            fi
         fi
 
         write_trial_tenant_config "$TENANT_ID" "$PORT_ARG" "$DAYS_ARG"
@@ -682,6 +937,7 @@ case "$COMMAND" in
         if [ -n "$port_to_remove" ]; then
             remove_runtime_port "$port_to_remove"
         fi
+        remove_tenant_nginx_config "$TENANT_ID"
         sync_tenant_port_map
         if [ -n "$(docker ps -qf 'name=app' | head -n 1)" ]; then
             restart_app_container

update.sh

@@ -9,13 +9,13 @@ LOG_DIR="$PROJECT_DIR/logs"
 LOG_FILE="$LOG_DIR/update.log"
 STATE_FILE="$PROJECT_DIR/.release-version"
 REPO_SLUG="Invario/Inventarsystem"
-API_URL="https://git.invario-software.eu/api/v1/repos/$REPO_SLUG/releases/latest"
+API_BASE_URL="https://git.invario-software.eu/api/v1/repos/$REPO_SLUG"
 BUNDLE_ASSET="inventarsystem-docker-bundle.tar.gz"
 ENV_FILE="$PROJECT_DIR/.docker-build.env"
 APP_IMAGE_REPO="git.invario-software.eu/invario/inventarsystem"
 COMPOSE_FILE="docker-compose-multitenant.yml"
 MIN_ROOT_FREE_MB="${INVENTAR_MIN_ROOT_FREE_MB:-2048}"
-MODE="release"
+MODE="stable"
 
 mkdir -p "$LOG_DIR"
 chmod 777 "$LOG_DIR" 2>/dev/null || true
@@ -119,6 +119,7 @@ usage() {
 Usage: $0 [options]
 
 Options:
+  -dev               Install the latest prerelease build
   --multitenant      Use docker-compose-multitenant.yml (default)
   -h, --help         Show this help message
 EOF
@@ -127,6 +128,10 @@ EOF
 parse_args() {
     while [[ $# -gt 0 ]]; do
         case "$1" in
+            -dev)
+                MODE="development"
+                shift
+                ;;
             --multitenant)
                 COMPOSE_FILE="docker-compose-multitenant.yml"
                 shift
@@ -179,7 +184,8 @@ create_backup() {
 
 fetch_release_metadata() {
     local meta_file="$1"
-    curl -fsSL "$API_URL" -o "$meta_file"
+    local endpoint="${2:-latest}"
+    curl -fsSL "$API_BASE_URL/releases/$endpoint" -o "$meta_file"
 }
 
 parse_latest_tag() {
@@ -207,6 +213,124 @@ for asset in data.get('assets', []):
 PY
 }
 
+parse_release_tag() {
+    local meta_file="$1"
+    python3 - <<'PY' "$meta_file"
+import json, sys
+with open(sys.argv[1], 'r', encoding='utf-8') as f:
+    data = json.load(f)
+print(data.get('tag_name', '').strip())
+PY
+}
+
+strip_prerelease_suffix() {
+    local tag="$1"
+    python3 - <<'PY' "$tag"
+import re, sys
+tag = sys.argv[1].strip()
+match = re.match(r'^(v\d+\.\d+\.\d+)', tag)
+print(match.group(1) if match else tag)
+PY
+}
+
+compare_semver_tags() {
+    local left_tag="$1"
+    local right_tag="$2"
+    python3 - <<'PY' "$left_tag" "$right_tag"
+import re, sys
+
+def parse(tag):
+    match = re.match(r'^v(\d+)\.(\d+)\.(\d+)', tag.strip())
+    if not match:
+        return None
+    return tuple(int(part) for part in match.groups())
+
+left = parse(sys.argv[1])
+right = parse(sys.argv[2])
+if left is None or right is None:
+    print('unknown')
+elif left > right:
+    print('gt')
+elif left < right:
+    print('lt')
+else:
+    print('eq')
+PY
+}
+
+parse_prerelease_flag() {
+    local meta_file="$1"
+    python3 - <<'PY' "$meta_file"
+import json, sys
+with open(sys.argv[1], 'r', encoding='utf-8') as f:
+    data = json.load(f)
+print('true' if data.get('prerelease') else 'false')
+PY
+}
+
+latest_stable_release() {
+    local meta_file="$1"
+    local releases_file="$2"
+    local release_count=0
+
+    if ! curl -fsSL "$API_BASE_URL/releases" -o "$releases_file"; then
+        return 1
+    fi
+
+    if ! python3 - <<'PY' "$releases_file" "$meta_file"
+import json, sys
+releases_path, target_path = sys.argv[1], sys.argv[2]
+with open(releases_path, 'r', encoding='utf-8') as f:
+    releases = json.load(f)
+for release in releases:
+    if not release.get('prerelease') and not release.get('draft'):
+        with open(target_path, 'w', encoding='utf-8') as out:
+            json.dump(release, out)
+        raise SystemExit(0)
+raise SystemExit(1)
+PY
+    then
+        return 1
+    fi
+    return 0
+}
+
+latest_prerelease() {
+    local meta_file="$1"
+    local releases_file="$2"
+
+    if ! curl -fsSL "$API_BASE_URL/releases" -o "$releases_file"; then
+        return 1
+    fi
+
+    if ! python3 - <<'PY' "$releases_file" "$meta_file"
+import json, sys
+releases_path, target_path = sys.argv[1], sys.argv[2]
+with open(releases_path, 'r', encoding='utf-8') as f:
+    releases = json.load(f)
+for release in releases:
+    if release.get('prerelease') and not release.get('draft'):
+        with open(target_path, 'w', encoding='utf-8') as out:
+            json.dump(release, out)
+        raise SystemExit(0)
+raise SystemExit(1)
+PY
+    then
+        return 1
+    fi
+    return 0
+}
+
+fetch_latest_release_bundle() {
+    local release_meta="$1"
+    local bundle_url
+    bundle_url="$(parse_asset_url "$release_meta" "$BUNDLE_ASSET")"
+    if [ -z "$bundle_url" ]; then
+        return 1
+    fi
+    printf '%s' "$bundle_url"
+}
+
 refresh_runtime_scripts_from_main() {
     local start_url stop_url restart_url update_url
     start_url="https://git.invario-software.eu/$REPO_SLUG/raw/branch/main/start.sh"
@@ -368,12 +492,66 @@ main() {
     archive_logs
     create_backup
 
-    # If user requested a development install, perform a simple dev deploy flow
+    # If user requested a development install, deploy the latest prerelease.
     if [ "$MODE" = "development" ]; then
         log_message "Requested development install"
-        local tag="dev"
+        local tag meta_file releases_file stable_meta_file stable_tag prerelease_tag prerelease_base_tag bundle_url app_image compose_path
-        local app_image="$APP_IMAGE_REPO:$tag"
+        local tmp_dir
-        local compose_path="$PROJECT_DIR/$COMPOSE_FILE"
+
+        tmp_dir="$(mktemp -d)"
+        meta_file="$tmp_dir/prerelease.json"
+        stable_meta_file="$tmp_dir/stable.json"
+        releases_file="$tmp_dir/releases.json"
+        trap 'rm -rf "${tmp_dir:-}"' EXIT
+
+        if ! fetch_release_metadata "$stable_meta_file" "latest"; then
+            log_message "ERROR: Could not fetch latest stable release metadata"
+            exit 1
+        fi
+
+        stable_tag="$(parse_release_tag "$stable_meta_file")"
+        if [ -z "$stable_tag" ]; then
+            log_message "ERROR: Could not determine latest stable release tag"
+            exit 1
+        fi
+
+        if latest_prerelease "$meta_file" "$releases_file"; then
+            prerelease_tag="$(parse_release_tag "$meta_file")"
+            prerelease_base_tag="$(strip_prerelease_suffix "$prerelease_tag")"
+        else
+            prerelease_tag=""
+            prerelease_base_tag=""
+        fi
+
+        if [ -n "$prerelease_tag" ]; then
+            case "$(compare_semver_tags "$stable_tag" "$prerelease_base_tag")" in
+                gt|eq)
+                    log_message "Latest stable release ($stable_tag) supersedes prerelease ($prerelease_tag); using stable release"
+                    tag="$stable_tag"
+                    meta_file="$stable_meta_file"
+                    ;;
+                lt)
+                    tag="$prerelease_tag"
+                    ;;
+                *)
+                    log_message "WARNING: Could not compare stable and prerelease versions; preferring prerelease when available"
+                    tag="$prerelease_tag"
+                    ;;
+            esac
+        else
+            log_message "No prerelease found; falling back to stable release $stable_tag"
+            tag="$stable_tag"
+            meta_file="$stable_meta_file"
+        fi
+
+        bundle_url="$(fetch_latest_release_bundle "$meta_file")"
+        if [ -z "$bundle_url" ]; then
+            log_message "ERROR: Release asset not found: $BUNDLE_ASSET"
+            exit 1
+        fi
+
+        app_image="$APP_IMAGE_REPO:$tag"
+        compose_path="$PROJECT_DIR/$COMPOSE_FILE"
 
         if [ ! -f "$compose_path" ]; then
             log_message "ERROR: compose file not found: $compose_path"
@@ -399,6 +577,9 @@ EOF
             exit 1
         fi
 
+        download_and_extract_bundle "$bundle_url" "$tmp_dir"
+        refresh_runtime_scripts_from_main
+
         # Bring up stack
         docker compose -f "$compose_path" --env-file "$ENV_FILE" pull mongodb redis >> "$LOG_FILE" 2>&1 || true
         docker compose -f "$compose_path" --env-file "$ENV_FILE" up -d --remove-orphans >> "$LOG_FILE" 2>&1
@@ -409,7 +590,7 @@ EOF
         fi
 
         echo "$tag" > "$STATE_FILE"
-        log_message "Development update completed successfully"
+        log_message "Development update completed successfully to prerelease $tag"
         exit 0
     fi
 
@@ -419,8 +600,8 @@ EOF
 
     trap 'rm -rf "${tmp_dir:-}"' EXIT
 
-    log_message "Checking latest Gitea release for $REPO_SLUG..."
+    log_message "Checking latest stable Gitea release for $REPO_SLUG..."
-    if ! fetch_release_metadata "$meta_file"; then
+    if ! fetch_release_metadata "$meta_file" "latest"; then
         log_message "WARNING: Could not fetch release metadata. Falling back to self-healing start path."
         if INVENTAR_SETUP_CRON=0 bash "$PROJECT_DIR/start.sh" >> "$LOG_FILE" 2>&1; then
             if verify_stack_health; then
@@ -436,7 +617,7 @@ EOF
         exit 0
     fi
 
-    latest_tag="$(parse_latest_tag "$meta_file")"
+    latest_tag="$(parse_release_tag "$meta_file")"
     if [ -z "$latest_tag" ]; then
         log_message "WARNING: Could not determine latest release tag. Falling back to self-healing start path."
         if INVENTAR_SETUP_CRON=0 bash "$PROJECT_DIR/start.sh" >> "$LOG_FILE" 2>&1; then