vital changes to the processing of the generation off a new appointment

Web/modules/database/termine.py

@@ -38,7 +38,7 @@ def _active_record_query(extra_query=None):
     return base_query
 
 
-def add(date_start: str, date_end: str, time_span: list, slots: int, slot_lenght: int, user: str, mail: list=[], note:str="", calendar_enabled: bool=False, title: str="", custom_fields: list = ()):
+def add(date_start: str, date_end: str, time_span: list, slots: int, slot_lenght: int, user: str, mail: list=[], note:str="", calendar_enabled: bool=False, title: str="", custom_fields: list = (), clients_p_slot: int=1):
     try:
         client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
         db = _get_tenant_db(client)
@@ -56,7 +56,8 @@ def add(date_start: str, date_end: str, time_span: list, slots: int, slot_lenght
             'title': title,
             'custom_fields': custom_fields, 
             'calendar_enabled': bool(calendar_enabled),
-            'slots_booked': [], # -> [(start_time, name,(custom1, custom2,...)), ...]the list gets there indexes as the slot 1-defined so is can be counted without an extra variable
+            'clients_per_slot': clients_p_slot,
+            'slots_booked': [], # -> [(start_time, (names),(custom1, custom2,...)), ...]the list gets there indexes as the slot 1-defined so is can be counted without an extra variable
             'Created': datetime.datetime.now(),
             'LastUpdated': datetime.datetime.now()
         }

Web/modules/terminplaner/backend_server.py

@@ -198,7 +198,7 @@ def build_client_slot_ics(appointment_id: str, slot_start: str, client_name: str
     return '\r\n'.join(ics_lines)
 
 
-def new(date_start: str, date_end: str, time_span: list, slots, slot_length, user: str, mail: list=None, note:str="", calendar_enabled: bool=False, title: str="", custom_fields: list = ()) -> dict:
+def new(date_start: str, date_end: str, time_span: list, slots, slot_length, user: str, mail: list=None, note:str="", calendar_enabled: bool=False, title: str="", custom_fields: list = (), client_per_slot: int=1) -> dict:
     """
     Generates a link for the executive to send to his clients to book a time Slot
     """
@@ -220,7 +220,7 @@ def new(date_start: str, date_end: str, time_span: list, slots, slot_length, use
     normalized_time_span = _normalize_time_span(time_span)
     normalized_mail = _normalize_mail_list(mail or [])
     
-    id = termin.add(date_start, date_end, normalized_time_span, slots_int, slot_length_int, user, normalized_mail, note, calendar_enabled=calendar_enabled, title=title, custom_fields=custom_fields)
+    id = termin.add(date_start, date_end, normalized_time_span, slots_int, slot_length_int, user, normalized_mail, note, calendar_enabled=calendar_enabled, title=title, custom_fields=custom_fields, clients_p_slot=client_per_slot)
     id_str = str(id)
     tenant_id = _current_tenant_id()
 
@@ -259,7 +259,7 @@ def new(date_start: str, date_end: str, time_span: list, slots, slot_length, use
     }
     
         
-def book_slot(id, date_start_time, name, custom:list=()):
+def book_slot(id, date_start_time, name, custom: tuple = ()):
     try:
         item = termin.get_item(id)
         if not item:
@@ -269,18 +269,32 @@ def book_slot(id, date_start_time, name, custom:list=()):
         if not isinstance(slots, list):
             slots = []
 
+        # 1. Check overall total booking capacity 
         capacity = int(item.get('slots', 0) or 0)
         if capacity and len(slots) >= capacity:
             return False
 
+        # 2. Prevent the exact same user from double-booking the exact same slot
         for existing in slots:
             if isinstance(existing, (list, tuple)) and len(existing) >= 2:
                 if existing[0] == date_start_time and existing[1] == name:
                     return False
 
+        # 3. Check concurrent capacity for this specific time slot
+        clients_per_slot = int(item.get('clients_per_slot', 1) or 1)
+        bookings_at_time = sum(
+            1 for existing in slots 
+            if isinstance(existing, (list, tuple)) and len(existing) > 0 and existing[0] == date_start_time
+        )
+        
+        if bookings_at_time >= clients_per_slot:
+            return False
+
+        # Append the new booking successfully
         slots.append((date_start_time, name, custom))
         success = termin.update(id, slots)
         return bool(success)
+        
     except Exception as e:
         print(f"Error booking slot: {e}")
         return False
@@ -331,32 +345,46 @@ def get_available(id):
         date_end = termin_range.get('date_end')
         time_span = termin_range.get('time_span', [])
         
+        # Safe integer parsing without heavy try-except blocks
         try:
             total_slots = int(termin_range.get('slots', 0) or 0)
-        except Exception:
+        except (ValueError, TypeError):
             total_slots = 0
 
+        # Support both spellings gracefully
+        raw_length = termin_range.get('slot_length') or termin_range.get('slot_lenght') or 0
         try:
-            slot_length = int(termin_range.get('slot_length') or termin_range.get('slot_lenght') or 0)
+            slot_length = int(raw_length)
-        except Exception:
+        except (ValueError, TypeError):
-            slot_length = termin_range.get('slot_length') or termin_range.get('slot_lenght')
+            slot_length = raw_length
 
+        clients_per_slot = int(termin_range.get('clients_per_slot', 1) or 1)
         booked = termin_range.get('slots_booked', []) or []
 
+        # Normalize the bookings list safely
         normalized = []
+        bookings_by_time = {}  # Tracks how many people are in each specific time slot
+        
         for s in booked:
             if isinstance(s, (list, tuple)) and len(s) >= 2:
-                normalized.append({'start': s[0], 'name': s[1]})
+                slot_time = s[0]
+                item = {'start': slot_time, 'name': s[1]}
             elif isinstance(s, dict):
-                normalized.append(s)
+                slot_time = s.get('start')
+                item = s
             else:
-                normalized.append({'value': s})
+                slot_time = str(s)
+                item = {'value': s}
+                
+            normalized.append(item)
+            
+            # Count concurrent bookings per timestamp
+            if slot_time:
+                bookings_by_time[slot_time] = bookings_by_time.get(slot_time, 0) + 1
 
+        # Calculate remaining total capacity safely
         slots_used = len(normalized)
-        try:
+        slots_left = max(0, total_slots - slots_used)
-            slots_left = max(0, int(total_slots) - slots_used)
-        except Exception:
-            slots_left = max(0, slots_used - slots_used)
 
         return {
             'date_start': date_start,
@@ -365,8 +393,10 @@ def get_available(id):
             'slot_length': slot_length,
             'slot_lenght': slot_length,
             'slots_total': total_slots,
+            'clients_per_slot': clients_per_slot,
             'slots_booked': normalized,
             'slots_left': slots_left,
+            'bookings_by_time': bookings_by_time
         }
     except Exception as e:
         print(f"Error getting available slots: {e}")

Web/modules/terminplaner/blueprint.py

@@ -4,6 +4,9 @@ import Web.modules.terminplaner.backend_server as appointment_service
 import Web.modules.database.settings as cfg
 import Web.modules.database.termine as termin
 import Web.modules.database.user as us
+import csv
+import io
+from flask import make_response, flash, redirect, url_for, session
 
 # Create a blueprint instance
 appoint_bp = Blueprint('terminplaner', __name__)
@@ -34,6 +37,66 @@ def _current_tenant_id():
         pass
     return str(session.get('tenant_id', '') or '').strip()
 
+@appoint_bp.route('/client/<appointment_id>/export_csv')
+def export_csv(appointment_id):
+    """
+    Generiert einen CSV-Export aller Buchungen für den Ersteller.
+    """
+    # 1. Berechtigungsprüfung (analog zur Client-Route)
+    current_user = str(session.get('username', '') or '').strip()
+    appointment_item = termin.get_item(appointment_id) or {}
+    appointment_owner = str(appointment_item.get('user', '') or '').strip()
+    
+    can_view = False
+    if current_user:
+        try:
+            can_view = bool(us.check_admin(current_user) or current_user == appointment_owner)
+        except Exception:
+            can_view = bool(current_user == appointment_owner)
+            
+    if not can_view:
+        flash('Nicht autorisiert für diesen Export.', 'error')
+        return redirect(url_for('terminplaner.client', appointment_id=appointment_id))
+
+    custom_fields = appointment_item.get('custom_fields', [])
+    bookings = appointment_item.get('slots_booked', []) or []
+
+    # 2. CSV im Speicher erstellen
+    si = io.StringIO()
+    # Wir nutzen ein Semikolon als Trennzeichen – das öffnet Excel im deutschsprachigen Raum direkt fehlerfrei
+    cw = csv.writer(si, delimiter=';', quoting=csv.QUOTE_MINIMAL)
+    
+    # Tabellenkopf schreiben
+    headers = ['Zeitpunkt', 'Name'] + list(custom_fields)
+    cw.writerow(headers)
+    
+    # Datenzeilen schreiben
+    for booking in bookings:
+        if isinstance(booking, (list, tuple)):
+            row = [booking[0], booking[1]]
+            
+            # Antworten holen und sicherstellen, dass Lücken (falls vorhanden) mit Leerstrings gefüllt werden
+            answers = booking[2] if len(booking) > 2 else []
+            for i in range(len(custom_fields)):
+                if i < len(answers):
+                    row.append(answers[i])
+                else:
+                    row.append('')
+            cw.writerow(row)
+
+    # 3. Response vorbereiten und UTF-8-BOM für Excel mitsenden
+    response_content = si.getvalue()
+    output = make_response(response_content)
+    
+    output.data = b'\xef\xbb\xbf' + output.data
+    
+    # Dateiname generieren
+    title_slug = appointment_item.get('title', 'export').replace(' ', '_')
+    output.headers["Content-Disposition"] = f"attachment; filename=buchungen_{title_slug}.csv"
+    output.headers["Content-Type"] = "text/csv; charset=utf-8"
+    
+    return output
+
 @appoint_bp.route('/client/<appointment_id>', methods=['POST', 'GET'])
 def client(appointment_id):
     """
@@ -51,9 +114,9 @@ def client(appointment_id):
     appointment_item = termin.get_item(appointment_id) or {}
     appointment_owner = str(appointment_item.get('user', '') or '').strip()
     
-    # Extract the custom fields defined by the appointment owner
     custom_fields = appointment_item.get('custom_fields', [])
 
+    # Permissions check
     can_view_booking_names = False
     if current_user:
         try:
@@ -61,6 +124,7 @@ def client(appointment_id):
         except Exception:
             can_view_booking_names = bool(current_user == appointment_owner)
 
+    # Sanitize data for public/client view
     available_for_view = dict(available)
     if not can_view_booking_names:
         sanitized_bookings = []
@@ -76,21 +140,19 @@ def client(appointment_id):
     if request.method == 'POST':
         action = request.form.get('action', 'book')
 
-        # Fall 1: ADMIN/AUTOR storniert einen Termin
+        # Case 1: Admin/Owner cancels a booking
         if action == 'delete' and can_view_booking_names:
             slot_time = request.form.get('slot_time')
             client_name = request.form.get('target_client_name')
             
-            # Aktuelle Buchungen direkt aus dem DB-Item holen
             current_slots = appointment_item.get('slots_booked', []) or []
             
-            # Filtere den zu löschenden Slot heraus (Prüfung auf Zeit und Name)
+            # Keep everything EXCEPT the item targeted for deletion
             updated_slots = [
                 slot for slot in current_slots 
                 if not (isinstance(slot, (list, tuple)) and slot[0] == slot_time and slot[1] == client_name)
             ]
             
-            # In DB schreiben via deiner existierenden termin.update() Funktion
             if termin.update(appointment_id, updated_slots):
                 flash('Buchung wurde erfolgreich gelöscht.', 'success')
             else:
@@ -98,11 +160,11 @@ def client(appointment_id):
                 
             return redirect(url_for('terminplaner.client', appointment_id=appointment_id, tenant=_current_tenant_id() or None))
 
-        # Fall 2: NORMALER CLIENT bucht einen Termin
+        # Case 2: Client books a slot
         elif action == 'book':
             start_daytime = request.form.get('start_day_time')
             username = request.form.get('client_name')
-            custom_answers = request.form.getlist('custom_answers')
+            custom_answers = tuple(request.form.getlist('custom_answers'))  # Cast to tuple for DB safety
 
             if not start_daytime or not username:
                 flash('Bitte Name und gewünschte Uhrzeit angeben.', 'error')
@@ -127,7 +189,7 @@ def client(appointment_id):
                     )
                 )
 
-            flash('Der Termin konnte nicht gespeichert werden.', 'error')
+            flash('Der Termin konnte nicht gespeichert werden. Eventuell ist der Slot bereits voll.', 'error')
 
     return render_template(
         'termin_client.html',
@@ -136,7 +198,8 @@ def client(appointment_id):
         current_user=session.get('username', ''),
         tenant_id=_current_tenant_id(),
         can_view_booking_names=can_view_booking_names,
-        custom_fields=custom_fields
+        custom_fields=custom_fields,
+        appointment_item=appointment_item
     )
 
 
@@ -188,7 +251,7 @@ def delete_appointment(appointment_id):
 @appoint_bp.route('/configure', methods=['GET', 'POST'])
 def configure():
     """
-    Route for authenticated persons to configure a new appointment for them
+    Route for authenticated persons to configure a new appointment schedule
     """
     guard = _require_module_enabled()
     if guard:
@@ -209,6 +272,11 @@ def configure():
         add_to_calendar = request.form.get('add_to_calendar') == 'on'
         title = request.form.get('title', '').strip()
         custom = request.form.getlist('custom_fields')
+        
+        try:
+            clients_p_slot = int(request.form.get('clients_per_slot', 1))
+        except (ValueError, TypeError):
+            clients_p_slot = 1
 
         if not start or not end or not time or not slots_amount or not slot_length or not title:
             flash('Bitte alle Pflichtfelder ausfüllen.', 'error')
@@ -219,28 +287,54 @@ def configure():
                 email_service_enabled=cfg.EMAIL_ENABLED,
             )
 
-        # Variablen im Funktionsaufruf aktualisiert
+        # Call the database service function (standardized to match your underlying code)
-        result = appointment_service.new(start, end, time, slots_amount, slot_length, session["username"], mail, note, calendar_enabled=add_to_calendar, title=title, custom_fields=custom)
+        inserted_id = appointment_service.new(
+            date_start=start, 
+            date_end=end, 
+            time_span=time, 
+            slots=slots_amount, 
+            slot_length=slot_length, 
+            user=session["username"], 
+            mail=mail, 
+            note=note, 
+            calendar_enabled=add_to_calendar, 
+            title=title, 
+            custom_fields=custom,
+            clients_per_slot=clients_p_slot
+        )
+
+        if not inserted_id:
+            flash('Fehler beim Erstellen des Terminplans.', 'error')
+            return redirect(url_for('terminplaner.configure'))
+
+        # Resolve the URL string here using Flask's native url_for instead of relying on the database layer
+        generated_link = url_for(
+            'terminplaner.client', 
+            appointment_id=str(inserted_id), 
+            tenant=_current_tenant_id() or None, 
+            _external=True
+        )
+
         flash('Der Terminplan wurde angelegt.', 'success')
         return render_template(
             'termin_configure.html',
             school_periods=cfg.SCHOOL_PERIODS,
-            generated_link=result['link'],
+            generated_link=generated_link,
-            calendar_link=result.get('calendar_link'),
+            calendar_link=None, # Update with calendar service link generation if needed
             add_to_calendar=add_to_calendar,
             email_service_enabled=cfg.EMAIL_ENABLED,
             title=title,
         )
-    elif request.method == "GET":
+
-        return render_template(
+    return render_template(
-            'termin_configure.html',
+        'termin_configure.html',
-            school_periods=cfg.SCHOOL_PERIODS,
+        school_periods=cfg.SCHOOL_PERIODS,
-            generated_link=None,
+        generated_link=None,
-            calendar_link=None,
+        calendar_link=None,
-            add_to_calendar=False,
+        add_to_calendar=False,
-            email_service_enabled=cfg.EMAIL_ENABLED,
+        email_service_enabled=cfg.EMAIL_ENABLED,
-            title=None,
+        title=None,
-        )
+    )
 
 
 @appoint_bp.route('/calendar/<appointment_id>.ics', methods=['GET'])

Web/templates/termin_client.html

@@ -97,16 +97,26 @@
                         <div class="card-body p-4 p-md-5 bg-white">
                             
                             {% if can_view_booking_names %}
+                                <!-- ADMIN / AUTOREN ANSICHT -->
                                 <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center gap-3 mb-4">
                                     <div>
                                         <h2 class="h4 fw-bold mb-0">Eingegangene Buchungen</h2>
                                         <div class="text-muted small">Verwalten Sie die Termine Ihrer Klienten</div>
                                     </div>
-                                    <span class="badge bg-primary rounded-pill fs-6 px-3 align-self-start align-self-md-center">
+                                    <div class="d-flex gap-2 align-self-start align-self-md-center">
-                                        {{ available.slots_total - available.slots_left }} von {{ available.slots_total }} belegt
+                                        <!-- Neuer CSV Export Button -->
-                                    </span>
+                                        <a href="{{ url_for('terminplaner.export_csv', appointment_id=appointment_id) }}" class="btn btn-outline-success rounded-3 d-inline-flex align-items-center gap-2">
+                                            <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-download" viewBox="0 0 16 16">
+                                                <path d="M.5 9.9a.5.5 0 0 1 .5.5v2.5a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v2.5a.5.5 0 0 1 1 0v2.5a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2v2.5a.5.5 0 0 1 .5-.5"/>
+                                                <path d="M7.646 11.854a.5.5 0 0 0 .708 0l3-3a.5.5 0 0 0-.708-.708L8.5 10.293V1.5a.5.5 0 0 0-1 0v8.793L5.354 8.146a.5.5 0 1 0-.708.708z"/>
+                                            </svg>
+                                            Excel / CSV Export
+                                        </a>
+                                        <span class="badge bg-primary rounded-pill fs-6 px-3 d-flex align-items-center">
+                                            {{ available.slots_total - available.slots_left }} von {{ available.slots_total }} belegt
+                                        </span>
+                                    </div>
                                 </div>
-
                                 <div class="bg-light p-3 rounded-3 mb-4">
                                     <div class="row g-2 align-items-center">
                                         <div class="col-12 col-md-8">
@@ -126,6 +136,7 @@
                                             <tr>
                                                 <th scope="col" class="py-3">Zeitpunkt</th>
                                                 <th scope="col" class="py-3">Name</th>
+                                                <!-- Spaltenüberschriften für Custom Fields -->
                                                 {% for field_label in custom_fields %}
                                                 <th scope="col" class="py-3">{{ field_label }}</th>
                                                 {% endfor %}
@@ -133,58 +144,45 @@
                                             </tr>
                                         </thead>
                                         <tbody id="booking-table-body">
-                                            {% for booking in available.slots_booked %}
+                                            {# Wir loopen jetzt über die rohen DB-Daten statt über die beschnittene Service-Funktion #}
-                                                <tr>
+                                            {% for booking in appointment_item.get('slots_booked', []) %}
-                                                    <td class="fw-semibold text-primary py-3 text-nowrap">
+                                            <tr>
-                                                        {% if booking is mapping %}
+                                                <!-- 1. ZEITPUNKT -->
-                                                            {{ booking.start }}
+                                                <td class="fw-semibold text-primary py-3 text-nowrap">
+                                                    {{ booking[0] }}
+                                                </td>
+                                            
+                                                <!-- 2. CLIENT NAME -->
+                                                <td>
+                                                    <span class="fw-bold text-dark">{{ booking[1] }}</span>
+                                                </td>
+
+                                                <!-- 3. CUSTOM FIELDS (Präziser Index-Abgleich gegen Spaltenkopf) -->
+                                                {% for field in custom_fields %}
+                                                    <td>
+                                                        {# Prüft ob für dieses Feld eine Antwort am exakt gleichen Index existiert #}
+                                                        {% if booking|length > 2 and booking[2] and booking[2]|length > loop.index0 %}
+                                                            {% set answer = booking[2][loop.index0] %}
+                                                            {{ answer if answer else '<span class="text-muted small">-</span>'|safe }}
                                                         {% else %}
-                                                            {{ booking[0] }}
+                                                            <span class="text-muted small">-</span>
                                                         {% endif %}
                                                     </td>
+                                                {% endfor %}
                                                 
-                                                    <td>
+                                                <!-- 4. AKTION (LÖSCHEN) -->
-                                                        <span class="fw-bold text-dark">
+                                                <td class="text-end">
-                                                            {% if booking is mapping %}
+                                                    <form method="post" action="{{ url_for('terminplaner.client', appointment_id=appointment_id, tenant=tenant_id) }}" onsubmit="return confirm('Möchten Sie diesen Termin wirklich löschen?');" class="d-inline">
-                                                                {{ booking.name }}
+                                                        <input type="hidden" name="action" value="delete">
-                                                            {% else %}
+                                                        <input type="hidden" name="slot_time" value="{{ booking[0] }}">
-                                                                {{ booking[1] }}
+                                                        <input type="hidden" name="target_client_name" value="{{ booking[1] }}">
-                                                            {% endif %}
+
-                                                        </span>
+                                                        <button type="submit" class="btn btn-sm btn-outline-danger px-3 rounded-3">
-                                                    </td>
+                                                            Löschen
-                                                    
+                                                        </button>
-                                                    {% set answers = none %}
+                                                    </form>
-                                                    {% if booking is mapping %}
+                                                </td>
-                                                        {# Versucht alle gängigen Bezeichnungen für das Antwort-Array zu treffen #}
+                                            </tr>
-                                                        {% set answers = booking.custom or booking.custom_fields or booking.custom_answers %}
-                                                    {% elif booking|length > 2 %}
-                                                        {% set answers = booking[2] %}
-                                                    {% endif %}
-                                                    
-                                                    {% if answers %}
-                                                        {% for answer in answers %}
-                                                        <td>{{ answer if answer else '<span class="text-muted small">-</span>'|safe }}</td>
-                                                        {% endfor %}
-                                                    {% else %}
-                                                        {# Fallback: Zeige Striche, wenn keine Antworten da sind #}
-                                                        {% for field in custom_fields %}
-                                                        <td><span class="text-muted small">-</span></td>
-                                                        {% endfor %}
-                                                    {% endif %}
-                                                    
-                                                    <td class="text-end">
-                                                        <form method="post" action="{{ url_for('terminplaner.client', appointment_id=appointment_id, tenant=tenant_id) }}" onsubmit="return confirm('Möchten Sie diesen Termin wirklich löschen?');" class="d-inline">
-                                                            <input type="hidden" name="action" value="delete">
-                                                            
-                                                            <input type="hidden" name="slot_time" value="{% if booking is mapping %}{{ booking.start }}{% else %}{{ booking[0] }}{% endif %}">
-                                                            <input type="hidden" name="target_client_name" value="{% if booking is mapping %}{{ booking.name }}{% else %}{{ booking[1] }}{% endif %}">
-                                                            
-                                                            <button type="submit" class="btn btn-sm btn-outline-danger px-3 rounded-3">
-                                                                Löschen
-                                                            </button>
-                                                        </form>
-                                                    </td>
-                                                </tr>
                                             {% endfor %}
                                         </tbody>
                                     </table>
@@ -324,6 +322,7 @@ document.addEventListener('DOMContentLoaded', function () {
     (function () {
         const available = {{ available|tojson }};
         const appointmentId = {{ appointment_id|tojson }};
+        const canViewBookingNames = {{ can_view_booking_names|tojson }}; // Injected from Flask
         const slider = document.getElementById('day-slider');
         const sliderLabel = document.getElementById('day-slider-label');
         const sliderWrap = slider ? slider.closest('.day-slider-wrap') : null;
@@ -337,10 +336,10 @@ document.addEventListener('DOMContentLoaded', function () {
         const confirmBookingWithIcsBtn = document.getElementById('confirm-booking-with-ics');
         const modal = modalEl ? new bootstrap.Modal(modalEl) : null;
 
-        const slotLength = Number.parseInt(available.slot_lenght, 10) || 45;
+        // Fallback for both spellings of slot length
-        const bookedStarts = new Set((available.slots_booked || []).map(function (entry) {
+        const slotLength = Number.parseInt(available.slot_length || available.slot_lenght, 10) || 45;
-            return String(entry.start || '').trim();
+        const clientsPerSlot = Number.parseInt(available.clients_per_slot, 10) || 1;
-        }).filter(Boolean));
+        const bookingsByTime = available.bookings_by_time || {};
 
         function formatDateForInput(dateObj) {
             const y = dateObj.getFullYear();
@@ -404,6 +403,8 @@ document.addEventListener('DOMContentLoaded', function () {
             return null;
         }
 
+        const fullyBookedSlots = [];
+
         function buildCandidateSlots() {
             const slots = [];
             const allowedDates = dateRangeInclusive(String(available.date_start || ''), String(available.date_end || ''));
@@ -411,9 +412,7 @@ document.addEventListener('DOMContentLoaded', function () {
 
             spans.forEach(function (entry) {
                 const parsed = parseTimeSpanEntry(entry);
-                if (!parsed) {
+                if (!parsed) return;
-                    return;
-                }
 
                 const targetDates = parsed.date ? [parsed.date] : allowedDates;
                 targetDates.forEach(function (date) {
@@ -426,10 +425,19 @@ document.addEventListener('DOMContentLoaded', function () {
                     let cursor = new Date(from);
                     while (addMinutes(cursor, slotLength) <= to) {
                         const slotStart = formatDateForInput(cursor);
-                        if (!bookedStarts.has(slotStart)) {
+                        const currentBookingsCount = bookingsByTime[slotStart] || 0;
+                        
+                        // Check if the current individual timestamp still has capacity left
+                        if (currentBookingsCount < clientsPerSlot) {
                             slots.push({
                                 start: slotStart,
                                 end: formatDateForInput(addMinutes(cursor, slotLength)),
+                                bookingsCount: currentBookingsCount
+                            });
+                        } else {
+                            fullyBookedSlots.push({
+                                start: slotStart,
+                                end: formatDateForInput(addMinutes(cursor, slotLength))
                             });
                         }
                         cursor = addMinutes(cursor, slotLength);
@@ -444,27 +452,8 @@ document.addEventListener('DOMContentLoaded', function () {
         const slotStartSet = new Set(candidateSlots.map(function (slot) { return slot.start; }));
         const allDays = dateRangeInclusive(String(available.date_start || ''), String(available.date_end || ''));
 
-        // Show the requested UI time window from 08:15 to 20:00 and highlight available slots
+        let slotMinTime = '08:00:00';
-        let slotMinTime = '08:15:00';
         let slotMaxTime = '20:00:00';
-        if (candidateSlots.length > 0) {
-            const starts = candidateSlots.map(function (slot) {
-                return new Date(slot.start.replace(' ', 'T') + ':00');
-            }).filter(function (d) { return !Number.isNaN(d.getTime()); });
-            const ends = candidateSlots.map(function (slot) {
-                return new Date(slot.end.replace(' ', 'T') + ':00');
-            }).filter(function (d) { return !Number.isNaN(d.getTime()); });
-
-            // Keep the computed min/max for gap calculations below
-            var computedMinStart = null;
-            var computedMaxEnd = null;
-            if (starts.length > 0 && ends.length > 0) {
-                computedMinStart = starts[0];
-                computedMaxEnd = ends[0];
-                starts.forEach(function (d) { if (d < computedMinStart) computedMinStart = d; });
-                ends.forEach(function (d) { if (d > computedMaxEnd) computedMaxEnd = d; });
-            }
-        }
 
         const visibleStart = allDays[0] || String(available.date_start || '');
         const visibleEndExclusive = allDays.length > 0
@@ -499,14 +488,8 @@ document.addEventListener('DOMContentLoaded', function () {
             slotMinTime: slotMinTime,
             slotMaxTime: slotMaxTime,
             nowIndicator: true,
-            validRange: {
+            validRange: { start: visibleStart, end: visibleEndExclusive },
-                start: visibleStart,
+            visibleRange: { start: visibleStart, end: visibleEndExclusive },
-                end: visibleEndExclusive,
-            },
-            visibleRange: {
-                start: visibleStart,
-                end: visibleEndExclusive,
-            },
             headerToolbar: {
                 left: '',
                 center: 'title',
@@ -514,28 +497,22 @@ document.addEventListener('DOMContentLoaded', function () {
             },
             events: [],
             eventDrop: function (info) {
-                if (info.event.id !== 'selected-slot') {
+                if (info.event.id !== 'selected-slot') return;
-                    return;
-                }
                 const droppedStart = formatDateForInput(info.event.start);
                 if (!slotStartSet.has(droppedStart)) {
                     info.revert();
-                    window.alert('Dieser Zeitpunkt ist nicht als freier Slot verfügbar.');
+                    window.alert('Dieser Zeitpunkt ist ausgebucht oder nicht verfügbar.');
                     return;
                 }
                 applySelectedSlot(droppedStart);
             },
             eventClick: function (info) {
                 const slotType = info.event.extendedProps ? info.event.extendedProps.slotType : '';
-                if (slotType !== 'free') {
+                if (slotType !== 'free') return;
-                    return;
-                }
                 applySelectedSlot(info.event.extendedProps.slotStart || '');
             }
         });
 
-        // No background greying: show full calendar skeleton and only mark possible slots
-
         function updateSliderLabel() {
             const dateList = dateRangeInclusive(String(available.date_start || ''), String(available.date_end || ''));
             const idx = Number.parseInt(slider.value, 10) || 0;
@@ -554,9 +531,7 @@ document.addEventListener('DOMContentLoaded', function () {
                 selectedEvent = null;
             }
 
-            if (!selectedSlot) {
+            if (!selectedSlot) return;
-                return;
-            }
 
             const start = new Date(selectedSlot.replace(' ', 'T') + ':00');
             const end = addMinutes(start, slotLength);
@@ -575,13 +550,9 @@ document.addEventListener('DOMContentLoaded', function () {
         function getIcsDownloadUrl() {
             const base = {{ url_for('terminplaner.client_slot_calendar_export', appointment_id=appointment_id, tenant=tenant_id)|tojson }};
             const url = new URL(base, window.location.origin);
-            if (selectedSlot) {
+            if (selectedSlot) url.searchParams.set('start', selectedSlot);
-                url.searchParams.set('start', selectedSlot);
-            }
             const name = String(clientNameInput.value || '').trim();
-            if (name) {
+            if (name) url.searchParams.set('name', name);
-                url.searchParams.set('name', name);
-            }
             return url.toString();
         }
 
@@ -592,14 +563,19 @@ document.addEventListener('DOMContentLoaded', function () {
             }
         }
 
-        // No background gaps: keep full skeleton/grid visible
+        // Render Active/Available Slots with Live Seat Counts
-
-        // Add candidate free slots (blue)
         candidateSlots.forEach(function (slot) {
             const start = new Date(slot.start.replace(' ', 'T') + ':00');
             const end = new Date(slot.end.replace(' ', 'T') + ':00');
+            
+            let displayTitle = 'Freier Slot';
+            if (clientsPerSlot > 1) {
+                const remainingSeats = clientsPerSlot - slot.bookingsCount;
+                displayTitle += ' (' + remainingSeats + '/' + clientsPerSlot + ' frei)';
+            }
+
             calendar.addEvent({
-                title: 'Freier Slot',
+                title: displayTitle,
                 start: start,
                 end: end,
                 color: '#0d6efd',
@@ -612,46 +588,54 @@ document.addEventListener('DOMContentLoaded', function () {
             });
         });
 
-        (available.slots_booked || []).forEach(function (booking) {
+        // Client View Optimization: Render solid red events ONLY if a slot is 100% full
-            const startStr = String(booking.start || '').trim();
+        fullyBookedSlots.forEach(function (slot) {
-            if (!startStr) {
+            const start = new Date(slot.start.replace(' ', 'T') + ':00');
-                return;
+            const end = new Date(slot.end.replace(' ', 'T') + ':00');
-            }
-            const start = new Date(startStr.replace(' ', 'T') + ':00');
-            const end = addMinutes(start, slotLength);
             calendar.addEvent({
-                title: 'Gebucht' + (booking.name ? ' - ' + booking.name : ''),
+                title: 'Ausgebucht',
                 start: start,
                 end: end,
                 color: '#dc3545',
                 editable: false,
-                display: 'block',
+                display: 'block'
             });
         });
 
+        // Admin Management View: Render detailed name blocks exclusively for management interaction
+        if (canViewBookingNames) {
+            (available.slots_booked || []).forEach(function (booking) {
+                const startStr = String(booking.start || '').trim();
+                if (!startStr) return;
+                const start = new Date(startStr.replace(' ', 'T') + ':00');
+                const end = addMinutes(start, slotLength);
+                calendar.addEvent({
+                    title: 'Belegt: ' + (booking.name || 'Anonym'),
+                    start: start,
+                    end: end,
+                    color: '#9e9e9e',
+                    editable: false,
+                    display: 'block',
+                });
+            });
+        }
+
+        // Event Listeners and Setup
         form.addEventListener('submit', function (ev) {
             if (!selectedSlotInput.value) {
                 ev.preventDefault();
                 window.alert('Bitte zuerst im Kalender einen freien Slot auswählen.');
                 return;
             }
-
+            if (allowImmediateSubmit) return;
-            if (allowImmediateSubmit) {
-                return;
-            }
-
             ev.preventDefault();
-            if (modal) {
+            if (modal) modal.show();
-                modal.show();
-            }
         });
 
         if (confirmBookingOnlyBtn) {
             confirmBookingOnlyBtn.addEventListener('click', function () {
                 allowImmediateSubmit = true;
-                if (modal) {
+                if (modal) modal.hide();
-                    modal.hide();
-                }
                 form.submit();
             });
         }
@@ -659,13 +643,9 @@ document.addEventListener('DOMContentLoaded', function () {
         if (confirmBookingWithIcsBtn) {
             confirmBookingWithIcsBtn.addEventListener('click', function () {
                 const icsUrl = confirmBookingWithIcsBtn.getAttribute('data-ics-url') || getIcsDownloadUrl();
-                if (icsUrl) {
+                if (icsUrl) window.open(icsUrl, '_blank');
-                    window.open(icsUrl, '_blank');
-                }
                 allowImmediateSubmit = true;
-                if (modal) {
+                if (modal) modal.hide();
-                    modal.hide();
-                }
                 form.submit();
             });
         }
@@ -686,10 +666,8 @@ document.addEventListener('DOMContentLoaded', function () {
         slider.addEventListener('input', function () {
             const idx = Number.parseInt(slider.value, 10) || 0;
             updateSliderLabel();
-            if (allDays[idx]) {
+            if (allDays[idx] && calendar.view.type === 'timeGridDay') {
-                if (calendar.view.type === 'timeGridDay') {
+                calendar.gotoDate(allDays[idx]);
-                    calendar.gotoDate(allDays[idx]);
-                }
             }
         });
 

Web/templates/termin_configure.html

@@ -70,6 +70,10 @@
                                 <label for="slot_length" class="form-label fw-semibold">Slot-Länge in Minuten</label>
                                 <input type="number" id="slot_length" name="slot_length" class="form-control form-control-lg" min="1" value="45">
                             </div>
+                            <div>
+                                <label class="form-label fw-semibold text-primary">Nutzer pro Slot</label>
+                                <input type="number" id="clients_per_slot" name="clients_per_slot" value="1">
+                            </div>
                             <div class="col-12 col-md-6">
                                 <label class="form-label fw-semibold text-primary">Automatisch berechnete Slots</label>
                                 <div id="slots_amounts_display" class="form-control form-control-lg bg-primary-subtle text-primary fw-bold d-flex align-items-center">0</div>
@@ -149,6 +153,7 @@
     const defaultPauseEndInput = document.getElementById('default_pause_end');
     
     const slotLengthInput = document.getElementById('slot_length');
+    const clientsperslot = document.getElementById('clients_per_slot')
     const slotsAmountsInput = document.getElementById('slots_amounts');
     const slotsAmountsDisplay = document.getElementById('slots_amounts_display'); // Neu: Anzeige-Element
 
@@ -198,16 +203,31 @@
         if (slotsAmountsDisplay) slotsAmountsDisplay.innerText = totalSlots + " Slots gesamt";
     }
 
+    // Helper utility in case your timeToMinutes handler doesn't catch empty strings safely
+    function safeTimeToMinutes(timeString) {
+        if (!timeString || typeof timeString !== 'string' || !timeString.includes(':')) {
+            return 0; // Return 0 instead of NaN for empty or missing values
+        }
+        const parts = timeString.split(':');
+        const hours = parseInt(parts[0], 10);
+        const minutes = parseInt(parts[1], 10);
+        if (isNaN(hours) || isNaN(minutes)) return 0;
+        return (hours * 60) + minutes;
+    }
+
     // Berechnet die Slots basierend auf den konfigurierten Zeiten & Pausen
     function calculateSlots() {
-        if (!slotLengthInput || !slotsAmountsInput) return;
+        if (!slotLengthInput || !slotsAmountsInput || !clientsperslot) return;
-        
+
         const slotLength = parseInt(slotLengthInput.value, 10);
         if (isNaN(slotLength) || slotLength <= 0) {
             updateSlotsDisplay(0);
             return;
         }
 
+        // FIX 1: Make sure we parse the input VALUE, defaulting to 1 if empty or invalid
+        const multiplier = parseInt(clientsperslot.value, 10) || 1;
+
         let totalSlots = 0;
         const rows = Array.from(daysContainer.querySelectorAll('[data-day-row]'));
 
@@ -219,19 +239,20 @@
 
             if (!startTime || !endTime) return;
 
-            const startMins = timeToMinutes(startTime);
+            // Using safety parsing to prevent missing values from generating NaN
-            const endMins = timeToMinutes(endTime);
+            const startMins = safeTimeToMinutes(startTime);
-            const pauseStartMins = timeToMinutes(pauseStart);
+            const endMins = safeTimeToMinutes(endTime);
-            const pauseEndMins = timeToMinutes(pauseEnd);
+            const pauseStartMins = safeTimeToMinutes(pauseStart);
+            const pauseEndMins = safeTimeToMinutes(pauseEnd);
 
-            if (endMins <= startMins) return; // Ungültige Zeit
+            if (isNaN(startMins) || isNaN(endMins) || endMins <= startMins) return;
 
             // Wenn eine gültige Pause innerhalb der Start/Endzeit existiert
             if (pauseStartMins > 0 && pauseEndMins > 0 && pauseStartMins < pauseEndMins && pauseStartMins > startMins && pauseStartMins < endMins) {
                 // Segment 1 (Vor der Pause)
                 const segment1 = pauseStartMins - startMins;
                 totalSlots += Math.floor(segment1 / slotLength);
-                
+
                 // Segment 2 (Nach der Pause)
                 const effectivePauseEnd = Math.min(pauseEndMins, endMins);
                 const segment2 = endMins - effectivePauseEnd;
@@ -244,7 +265,11 @@
             }
         });
 
-        updateSlotsDisplay(totalSlots);
+        // FIX 2: Multiply by our safely parsed input value scalar
+        const totalSlotscomplete = totalSlots * multiplier;
+
+        // Safety check: if anything went wrong anyway, fallback to 0 instead of displaying NaN
+        updateSlotsDisplay(isNaN(totalSlotscomplete) ? 0 : totalSlotscomplete);
     }
 
     // Synchronisiert das Textfeld und fügt den Break-Cut hinzu
@@ -363,33 +388,33 @@
 
     document.addEventListener('DOMContentLoaded', function () {
         const container = document.getElementById('custom-fields-container');
-        
+
         // Monitor inputs inside the container using event delegation
         container.addEventListener('input', function (event) {
             // Only trigger if the user is typing inside our dynamic inputs
             if (event.target.classList.contains('custom-dynamic-input')) {
                 const allInputs = container.querySelectorAll('.custom-dynamic-input');
                 const lastInput = allInputs[allInputs.length - 1];
-            
+
                 // If the user typed something into the absolute last input field, spawn a new one
                 if (lastInput.value.trim() !== '') {
                     createNewFieldRow(container);
                 }
             }
         });
-    
+
         // Helper function to generate and append a clean new input row
         function createNewFieldRow(targetContainer) {
             const rowDiv = document.createElement('div');
             rowDiv.className = 'mb-3 custom-field-row';
-            
+
             rowDiv.innerHTML = `
                 <input type="text" 
                        name="custom_fields" 
                        class="form-control form-control-lg custom-dynamic-input" 
                        placeholder="Nächstes Zusatzfeld...">
             `;
-            
+
             targetContainer.appendChild(rowDiv);
         }
     });
@@ -409,6 +434,10 @@
         slotLengthInput.addEventListener('input', calculateSlots);
         slotLengthInput.addEventListener('change', calculateSlots);
     }
+    if (clientsperslot) {
+        clientsperslot.addEventListener('input', calculateSlots);
+        clientsperslot.addEventListener('change', calculateSlots);
+    }
 
     if (startDateInput.value && endDateInput.value) {
         renderRows();