Files
Inventarsystem/Web/templates/upload_batch.html
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HTML

<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Batch Upload - CSV & Bilder</title>
<style>
:root {
--primary-color: #4a90e2;
--background-color: #f4f7f6;
--text-color: #333;
--border-radius: 8px;
}
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: var(--background-color);
color: var(--text-color);
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
margin: 0;
padding: 20px;
box-sizing: border-box;
}
.upload-container {
background: white;
padding: 2rem;
border-radius: var(--border-radius);
box-shadow: 0 4px 6px rgba(0,0,0,0.1);
width: 100%;
max-width: 500px;
}
h2 {
margin-top: 0;
color: var(--primary-color);
text-align: center;
}
.form-group {
margin-bottom: 1.5rem;
}
label {
display: block;
font-weight: 600;
margin-bottom: 0.5rem;
}
input[type="file"] {
display: block;
width: 100%;
padding: 0.5rem;
border: 1px dashed #ccc;
border-radius: var(--border-radius);
background: #fafafa;
cursor: pointer;
box-sizing: border-box;
}
.btn-submit {
width: 100%;
padding: 0.75rem;
background-color: var(--primary-color);
color: white;
border: none;
border-radius: var(--border-radius);
font-size: 1rem;
font-weight: 600;
cursor: pointer;
transition: background-color 0.3s ease;
}
.btn-submit:hover {
background-color: #357abd;
}
.btn-submit:disabled {
background-color: #a0c4e8;
cursor: not-allowed;
}
/* Fortschritts- und Log-Bereich */
#uploadProgress {
margin-top: 2rem;
display: none;
}
#progressText {
font-size: 1rem;
margin-bottom: 0.5rem;
color: var(--primary-color);
text-align: center;
}
progress {
width: 100%;
height: 20px;
border-radius: var(--border-radius);
}
#logList {
margin-top: 1rem;
padding: 10px;
font-size: 0.85rem;
color: #555;
max-height: 150px;
overflow-y: auto;
background: #fafafa;
border: 1px solid #ddd;
border-radius: var(--border-radius);
list-style-type: none;
}
#logList li {
margin-bottom: 5px;
padding-bottom: 5px;
border-bottom: 1px solid #eee;
}
#logList li:last-child {
border-bottom: none;
margin-bottom: 0;
padding-bottom: 0;
}
</style>
</head>
<body>
<div class="upload-container">
<h2>Inventar Batch Upload</h2>
<!-- ID auf "batchUploadForm" geändert, damit das JS es findet -->
<form id="batchUploadForm">
<div class="form-group">
<label for="csv_file">1. items.csv Datei auswählen</label>
<input type="file" id="csv_file" name="csv_file" accept=".csv" required>
</div>
<div class="form-group">
<label for="images">2. Bilder auswählen</label>
<input type="file" id="images" name="images" accept="image/*" multiple required>
<small style="color: #666; display: block; margin-top: 5px;">Du kannst mehrere Bilder markieren (Strg/Cmd gedrückt halten).</small>
</div>
<!-- ID auf "uploadBtn" geändert -->
<button type="submit" id="uploadBtn" class="btn-submit">Daten hochladen</button>
</form>
<!-- Fehlender Container für den Fortschrittsbalken und Logs hinzugefügt -->
<div id="uploadProgress">
<div id="progressText">Starte Upload...</div>
<progress id="progressBar" value="0" max="100"></progress>
<ul id="logList"></ul>
</div>
</div>
<script>
document.getElementById('batchUploadForm').addEventListener('submit', async function(e) {
e.preventDefault();
const csvInput = document.getElementById('csv_file');
const imageInput = document.getElementById('images');
const uploadBtn = document.getElementById('uploadBtn');
const progressContainer = document.getElementById('uploadProgress');
const progressBar = document.getElementById('progressBar');
const progressText = document.getElementById('progressText');
const logList = document.getElementById('logList');
if (!csvInput.files.length) {
alert("Bitte wähle eine CSV-Datei aus.");
return;
}
uploadBtn.disabled = true;
progressContainer.style.display = 'block';
logList.innerHTML = '';
const log = (msg) => {
const li = document.createElement('li');
li.textContent = msg;
logList.appendChild(li);
logList.scrollTop = logList.scrollHeight; // Auto-scroll
};
const csvFile = csvInput.files[0];
const allImages = Array.from(imageInput.files);
const BATCH_SIZE = 50;
try {
// 1. CSV-Datei lesen
const csvText = await csvFile.text();
// 2. CSV in Zeilen aufteilen
let rows = csvText.split(/\r?\n/).filter(row => row.trim().length > 0);
if (rows.length <= 1) {
throw new Error("CSV-Datei ist leer oder enthält nur Kopfzeilen.");
}
const header = rows[0];
let dataRows = rows.slice(1);
// 3. Client-seitige Deduplizierung (Entfernt exakte Duplikat-Zeilen)
const uniqueRowsSet = new Set();
const uniqueDataRows = [];
let duplicateCount = 0;
for (const row of dataRows) {
if (uniqueRowsSet.has(row)) {
duplicateCount++;
} else {
uniqueRowsSet.add(row);
uniqueDataRows.push(row);
}
}
log(`${uniqueDataRows.length} einzigartige Einträge gefunden. ${duplicateCount} Duplikate entfernt.`);
// Den Index der "Images" Spalte finden
const headers = header.split(',');
const imagesColIndex = headers.findIndex(h => h.trim().replace(/['"]/g, '') === 'Images');
// 4. In Batches (Häppchen) aufteilen
const batches = [];
for (let i = 0; i < uniqueDataRows.length; i += BATCH_SIZE) {
batches.push(uniqueDataRows.slice(i, i + BATCH_SIZE));
}
progressBar.max = batches.length;
progressBar.value = 0;
// 5. Batches nacheinander hochladen
for (let b = 0; b < batches.length; b++) {
const batchRows = batches[b];
progressText.textContent = `Lade Batch ${b + 1} von ${batches.length} hoch...`;
log(`Bereite Batch ${b + 1} vor (${batchRows.length} Artikel)...`);
// CSV für diesen Batch neu zusammensetzen
const batchCsvText = [header, ...batchRows].join('\n');
const batchCsvBlob = new Blob([batchCsvText], { type: 'text/csv' });
// Benötigte Bilder für diesen Batch extrahieren
const requiredImageNames = new Set();
if (imagesColIndex !== -1) {
batchRows.forEach(row => {
const cols = row.split(',');
if (cols[imagesColIndex]) {
try {
let imgStr = cols[imagesColIndex].trim().replace(/^"|"$/g, '').replace(/'/g, '"');
if (imgStr.startsWith('[') && imgStr.endsWith(']')) {
const parsedImages = JSON.parse(imgStr);
parsedImages.forEach(img => requiredImageNames.add(img));
}
} catch (err) {
console.warn("Konnte Bild-Array nicht parsen in Zeile:", row);
}
}
});
}
// Bilder auf die für diesen Batch benötigten filtern
const batchImages = allImages.filter(img => requiredImageNames.has(img.name));
// FormData zusammenbauen
const formData = new FormData();
formData.append('csv_file', batchCsvBlob, `batch_${b+1}.csv`);
batchImages.forEach(img => {
formData.append('images', img);
});
// An Server senden
try {
const response = await fetch('/upload_csv_batch', {
method: 'POST',
body: formData
});
const result = await response.json();
if (!response.ok || !result.success) {
throw new Error(result.message || `Server antwortete mit Status ${response.status}`);
}
log(`Batch ${b + 1} erfolgreich: ${result.message}`);
} catch (batchErr) {
log(`Fehler in Batch ${b + 1}: ${batchErr.message}`);
alert(`Upload wurde bei Batch ${b + 1} aufgrund eines Fehlers abgebrochen. Prüfe die Logs.`);
break; // Stoppt weitere Uploads, wenn einer fehlschlägt
}
progressBar.value = b + 1;
}
progressText.textContent = "Upload-Vorgang abgeschlossen!";
uploadBtn.disabled = false;
} catch (error) {
alert("Fehler bei der Verarbeitung des Uploads: " + error.message);
log("Fehler: " + error.message);
uploadBtn.disabled = false;
}
});
</script>
</body>
</html>