updated printing solutions

py_app/app/routes.py

@@ -29,7 +29,13 @@ warehouse_bp = Blueprint('warehouse', __name__)
 
 def format_cell_data(cell):
     """Helper function to format cell data, especially dates and times"""
+    # Import date and datetime at the top of the function
+    from datetime import datetime, date
+    
     if isinstance(cell, datetime):
+        # Format datetime as dd/mm/yyyy
+        return cell.strftime('%d/%m/%Y')
+    elif isinstance(cell, date):
         # Format date as dd/mm/yyyy
         return cell.strftime('%d/%m/%Y')
     elif isinstance(cell, timedelta):
@@ -38,9 +44,18 @@ def format_cell_data(cell):
         hours, remainder = divmod(total_seconds, 3600)
         minutes, seconds = divmod(remainder, 60)
         return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
-    elif hasattr(cell, 'date'):  # Handle date objects
-        # Format date as dd/mm/yyyy
-        return cell.strftime('%d/%m/%Y')
+    elif isinstance(cell, str):
+        # Handle string dates in yyyy-mm-dd or yyyy-mm-dd HH:MM:SS
+        import re
+        match = re.match(r'^(\d{4})-(\d{2})-(\d{2})(.*)$', cell)
+        if match:
+            year, month, day, rest = match.groups()
+            formatted = f"{day}/{month}/{year}"
+            if rest.strip():
+                # If there is a time part, keep it after the date
+                formatted += rest
+            return formatted
+        return cell
     else:
         return cell
 
@@ -262,7 +277,9 @@ def scan():
             ORDER BY Id DESC
             LIMIT 15
         """)
-        scan_data = cursor.fetchall()
+        raw_scan_data = cursor.fetchall()
+        # Apply formatting to scan data for consistent date display
+        scan_data = [[format_cell_data(cell) for cell in row] for row in raw_scan_data]
         conn.close()
     except mariadb.Error as e:
         print(f"Error fetching scan data: {e}")
@@ -2393,6 +2410,11 @@ def import_locations_csv():
     from app.warehouse import import_locations_csv_handler
     return import_locations_csv_handler()
 
+@warehouse_bp.route('/generate_location_label_pdf', methods=['POST'])
+def generate_location_label_pdf():
+    from app.warehouse import generate_location_label_pdf
+    return generate_location_label_pdf()
+
 
 # NOTE for frontend/extension developers:
 # To print labels, call the Chrome extension and pass the PDF URL:

py_app/app/templates/base.html

@@ -26,7 +26,7 @@
             </div>
             <div class="right-header">
                 <button id="theme-toggle" class="theme-toggle">Change to dark theme</button>
-                {% if request.endpoint in ['main.upload_data', 'main.print_module', 'main.label_templates', 'main.create_template'] %}
+                {% if request.endpoint in ['main.upload_data', 'main.upload_orders', 'main.print_module', 'main.label_templates', 'main.create_template', 'main.print_lost_labels', 'main.view_orders'] %}
                     <a href="{{ url_for('main.etichete') }}" class="btn go-to-main-etichete-btn">Main Page Etichete</a>
                 {% endif %}
                 <a href="{{ url_for('main.dashboard') }}" class="btn go-to-dashboard-btn">Go to Dashboard</a>

py_app/app/templates/create_locations.html

@@ -1,5 +1,57 @@
 {% extends "base.html" %}
 {% block title %}Create Warehouse Locations{% endblock %}
+
+{% block head %}
+<style>
+/* Barcode label preview */
+#barcode-label-preview {
+    width: 4cm;
+    height: 8cm;
+    border: 2px solid #333;
+    background: white;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    margin: 10px auto;
+    position: relative;
+}
+
+#barcode-label-preview .location-text {
+    font-size: 12px;
+    font-weight: bold;
+    text-align: center;
+    margin-bottom: 10px;
+}
+
+#barcode-label-preview #location-barcode {
+    max-width: 90%;
+    max-height: 60%;
+}
+
+.print-section {
+    margin-top: 24px;
+    padding: 16px;
+    border: 1px solid #ddd;
+    border-radius: 5px;
+    background-color: #f9f9f9;
+}
+
+.location-row.selected {
+    background-color: #007bff !important;
+    color: white !important;
+}
+
+.location-row {
+    cursor: pointer;
+}
+
+.location-row:hover {
+    background-color: #f8f9fa;
+}
+</style>
+{% endblock %}
+
 {% block content %}
 <div class="scan-container">
     <!-- Add Warehouse Location Card -->
@@ -25,6 +77,38 @@
                 <a href="{{ url_for('warehouse.import_locations_csv') }}" class="btn" style="padding: 4px 12px; font-size: 0.95em;">Go to Import Page</a>
             </div>
         </div>
+        
+        <!-- Print Barcode Section -->
+        <div class="print-section">
+            <h3 style="font-size: 1.1em; margin-bottom: 12px;">Print Location Barcode</h3>
+            
+            <!-- Label Preview -->
+            <div id="barcode-label-preview">
+                <div class="location-text">
+                    <div id="location-code-display">Select a location</div>
+                </div>
+                <canvas id="location-barcode" style="display: none;"></canvas>
+                <div id="barcode-placeholder" style="color: #999; font-style: italic;">No location selected</div>
+            </div>
+            
+            <!-- Print Controls -->
+            <div style="text-align: center; margin-top: 15px;">
+                <div style="margin-bottom: 10px;">
+                    <label for="printer-select" style="font-size: 11px; font-weight: 600;">Select Printer:</label>
+                    <select id="printer-select" class="form-control form-control-sm" style="width: 200px; margin: 5px auto; font-size: 11px;">
+                        <option value="">Loading printers...</option>
+                    </select>
+                </div>
+                <button id="print-barcode-btn" class="btn btn-success" style="font-size: 12px; padding: 6px 20px;" disabled>
+                    🖨️ Print Location Barcode
+                </button>
+                <button onclick="testQZConnection()" class="btn btn-info" style="font-size: 11px; padding: 4px 12px; margin-left: 8px;">
+                    🔧 Test QZ Tray
+                </button>
+                <div id="print-status" style="margin-top: 8px; font-size: 11px;"></div>
+            </div>
+        </div>
+        
         <!-- Delete Location Area -->
         {% if session['role'] in ['administrator', 'management'] %}
         <div style="margin-top: 32px; padding: 12px; border-top: 1px solid #eee;">
@@ -45,7 +129,10 @@
     <!-- Locations Table Card -->
     <div class="card scan-table-card">
         <h3>Warehouse Locations</h3>
-        <table class="scan-table">
+        <div id="location-selection-hint" style="margin-bottom: 10px; font-size: 11px; color: #666; text-align: center;">
+            Click on a row to select a location for printing
+        </div>
+        <table class="scan-table" id="locations-table">
             <thead>
                 <tr>
                     <th>ID</th>
@@ -56,7 +143,7 @@
             </thead>
             <tbody>
                 {% for loc in locations %}
-                <tr>
+                <tr class="location-row" data-location-code="{{ loc[1] }}">
                     <td>{{ loc[0] }}</td>
                     <td>{{ loc[1] }}</td>
                     <td>{{ loc[2] }}</td>
@@ -67,4 +154,356 @@
         </table>
     </div>
 </div>
+
+<!-- Include required JS libraries -->
+<script src="{{ url_for('static', filename='JsBarcode.all.min.js') }}"></script>
+<script src="{{ url_for('static', filename='qz-tray.js') }}"></script>
+<script src="{{ url_for('static', filename='html2canvas.min.js') }}"></script>
+
+<script>
+// Simplified notification system (matching print module)
+function showNotification(message, type = 'info') {
+    const existingNotifications = document.querySelectorAll('.notification');
+    existingNotifications.forEach(n => n.remove());
+    
+    const notification = document.createElement('div');
+    notification.className = `notification alert alert-${type === 'error' ? 'danger' : type === 'success' ? 'success' : type === 'warning' ? 'warning' : 'info'}`;
+    notification.style.cssText = `
+        position: fixed;
+        top: 20px;
+        right: 20px;
+        z-index: 9999;
+        max-width: 450px;
+        padding: 15px;
+        border-radius: 5px;
+        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
+    `;
+    
+    const formattedMessage = message.replace(/\n/g, '<br>');
+    
+    notification.innerHTML = `
+        <div style="display: flex; align-items: flex-start; justify-content: space-between;">
+            <span style="flex: 1; padding-right: 10px; white-space: pre-wrap; font-family: monospace; font-size: 12px;">${formattedMessage}</span>
+            <button type="button" onclick="this.parentElement.parentElement.remove()" style="background: none; border: none; font-size: 20px; cursor: pointer; flex-shrink: 0;">&times;</button>
+        </div>
+    `;
+    
+    document.body.appendChild(notification);
+    
+    const timeout = type === 'error' ? 15000 : 5000;
+    setTimeout(() => {
+        if (notification.parentNode) {
+            notification.remove();
+        }
+    }, timeout);
+}
+
+let selectedLocationCode = null;
+let qzTray = null;
+let availablePrinters = [];
+
+// Initialize QZ Tray connection (matching print module implementation)
+async function initializeQZTray() {
+    try {
+        console.log('🔍 Checking for QZ Tray...');
+        
+        // Check if QZ Tray library is loaded
+        if (typeof qz === 'undefined') {
+            console.error('❌ QZ Tray library not loaded');
+            const errorMsg = '❌ QZ Tray Library Not Loaded\n\n' +
+                           'The QZ Tray JavaScript library failed to load.\n' +
+                           'Check the browser console for errors and refresh the page.\n\n' +
+                           'Path: /static/qz-tray.js';
+            document.getElementById('print-status').textContent = 'Library Error';
+            showNotification(errorMsg, 'error');
+            return false;
+        }
+        
+        console.log('✅ QZ Tray library loaded');
+        console.log('🔒 Using patched qz-tray.js for pairing-key authentication...');
+        
+        console.log('🔌 Attempting to connect to QZ Tray on client PC...');
+
+        // Set connection closed callback
+        qz.websocket.setClosedCallbacks(function() {
+            console.warn('⚠️ QZ Tray connection closed');
+            document.getElementById('print-status').textContent = 'QZ Tray Disconnected';
+        });
+
+        // Connect to QZ Tray running on client PC
+        console.log('⏳ Connecting...');
+        await qz.websocket.connect();
+        qzTray = qz;
+        
+        const version = await qz.api.getVersion();
+        console.log('✅ QZ Tray connected successfully');
+        console.log('📋 QZ Tray Version:', version);
+        
+        document.getElementById('print-status').textContent = 'QZ Tray Connected';
+        
+        // Load printers
+        await loadQZTrayPrinters();
+        
+        return true;
+        
+    } catch (error) {
+        console.error('❌ QZ Tray connection failed:', error);
+        
+        let errorMsg = '❌ QZ Tray Connection Failed\n\n';
+        let statusText = 'Connection Failed';
+        
+        if (error.message && error.message.includes('certificate')) {
+            errorMsg += '🔒 Certificate Trust Required\n\n';
+            errorMsg += 'QZ Tray requires you to trust its certificate:\n';
+            errorMsg += '1. Open: https://localhost:8182\n';
+            errorMsg += '2. Accept/Trust the security certificate\n';
+            errorMsg += '3. Refresh this page and try again\n\n';
+            errorMsg += '🔍 This is normal and safe for QZ Tray';
+            statusText = 'Certificate Error';
+        } else {
+            errorMsg += '⚠️ Troubleshooting:\n';
+            errorMsg += '1. Make sure QZ Tray is running\n';
+            errorMsg += '2. Check firewall settings\n';
+            errorMsg += '3. Try restarting QZ Tray\n';
+            errorMsg += '4. Restart your browser\n\n';
+            errorMsg += 'Error: ' + error.message;
+        }
+        
+        document.getElementById('print-status').textContent = statusText;
+        showNotification(errorMsg, 'error');
+        return false;
+    }
+}
+
+// Load available printers from QZ Tray (matching print module)
+async function loadQZTrayPrinters() {
+    try {
+        if (!qzTray) return;
+        
+        const printers = await qzTray.printers.find();
+        availablePrinters = printers;
+        
+        const printerSelect = document.getElementById('printer-select');
+        printerSelect.innerHTML = '<option value="">Select a printer...</option>';
+        
+        printers.forEach(printer => {
+            const option = document.createElement('option');
+            option.value = printer;
+            option.textContent = printer;
+            printerSelect.appendChild(option);
+        });
+        
+        console.log(`📄 Found ${printers.length} printers:`, printers);
+        
+        // Auto-select first thermal printer if available
+        const thermalPrinter = printers.find(p => 
+            p.toLowerCase().includes('thermal') || 
+            p.toLowerCase().includes('label') ||
+            p.toLowerCase().includes('zebra') ||
+            p.toLowerCase().includes('epson')
+        );
+        
+        if (thermalPrinter) {
+            printerSelect.value = thermalPrinter;
+            console.log('🏷️ Auto-selected thermal printer:', thermalPrinter);
+        } else if (printers.length > 0) {
+            printerSelect.value = printers[0];
+            console.log('🖨️ Auto-selected first printer:', printers[0]);
+        }
+        
+        showNotification(`✅ Found ${printers.length} printer(s)`, 'success');
+        
+    } catch (error) {
+        console.error('Error loading printers:', error);
+        document.getElementById('printer-select').innerHTML = '<option value="">Failed to load printers</option>';
+        showNotification('⚠️ Failed to load printers: ' + error.message, 'warning');
+    }
+}
+
+// Generate barcode for location
+function generateLocationBarcode(locationCode) {
+    const canvas = document.getElementById('location-barcode');
+    const placeholder = document.getElementById('barcode-placeholder');
+    
+    if (locationCode) {
+        try {
+            JsBarcode(canvas, locationCode, {
+                format: "CODE128",
+                width: 2,
+                height: 80,
+                displayValue: true,
+                fontSize: 12,
+                margin: 5
+            });
+            canvas.style.display = 'block';
+            placeholder.style.display = 'none';
+        } catch (error) {
+            console.error('Error generating barcode:', error);
+            canvas.style.display = 'none';
+            placeholder.style.display = 'block';
+            placeholder.textContent = 'Barcode generation failed';
+        }
+    } else {
+        canvas.style.display = 'none';
+        placeholder.style.display = 'block';
+        placeholder.textContent = 'No location selected';
+    }
+}
+
+// Handle location row selection
+document.addEventListener('DOMContentLoaded', function() {
+    const locationRows = document.querySelectorAll('.location-row');
+    const locationCodeDisplay = document.getElementById('location-code-display');
+    const printButton = document.getElementById('print-barcode-btn');
+    
+    locationRows.forEach(row => {
+        row.addEventListener('click', function() {
+            // Remove selection from other rows
+            locationRows.forEach(r => r.classList.remove('selected'));
+            
+            // Select this row
+            this.classList.add('selected');
+            
+            // Get location code
+            selectedLocationCode = this.dataset.locationCode;
+            
+            // Update display
+            locationCodeDisplay.textContent = selectedLocationCode;
+            
+            // Generate barcode
+            generateLocationBarcode(selectedLocationCode);
+            
+            // Enable print button
+            printButton.disabled = false;
+            
+            showNotification(`📍 Selected location: ${selectedLocationCode}`, 'info');
+        });
+    });
+    
+    // Initialize QZ Tray
+    initializeQZTray();
+});
+
+// Print barcode function with enhanced QZ Tray support
+async function printLocationBarcode() {
+    if (!selectedLocationCode) {
+        showNotification('❌ Please select a location first', 'error');
+        return;
+    }
+    
+    const selectedPrinter = document.getElementById('printer-select').value;
+    if (!selectedPrinter) {
+        showNotification('❌ Please select a printer', 'error');
+        return;
+    }
+    
+    const printButton = document.getElementById('print-barcode-btn');
+    const printStatus = document.getElementById('print-status');
+    
+    try {
+        printButton.disabled = true;
+        printStatus.textContent = 'Generating label...';
+        
+        // Generate PDF for the 4x8cm label
+        const response = await fetch('/generate_location_label_pdf', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify({
+                location_code: selectedLocationCode
+            })
+        });
+        
+        if (!response.ok) {
+            throw new Error('Failed to generate PDF');
+        }
+        
+        const pdfBlob = await response.blob();
+        const pdfArrayBuffer = await pdfBlob.arrayBuffer();
+        const pdfBase64 = btoa(String.fromCharCode(...new Uint8Array(pdfArrayBuffer)));
+        
+        printStatus.textContent = 'Sending to printer...';
+        
+        // Configure QZ Tray for PDF printing with 4x8cm size
+        const config = qzTray.configs.create(selectedPrinter, {
+            size: { width: 4, height: 8, units: 'cm' },
+            margins: { top: 0, right: 0, bottom: 0, left: 0 },
+            orientation: 'portrait'
+        });
+        
+        const data = [{
+            type: 'pdf',
+            format: 'base64',
+            data: pdfBase64
+        }];
+        
+        await qzTray.print(config, data);
+        
+        printStatus.textContent = 'Label printed successfully!';
+        showNotification(`✅ Location barcode printed successfully!\n📍 Location: ${selectedLocationCode}\n🖨️ Printer: ${selectedPrinter}`, 'success');
+        
+        setTimeout(() => {
+            printStatus.textContent = '';
+        }, 3000);
+        
+    } catch (error) {
+        console.error('Print error:', error);
+        printStatus.textContent = 'Print failed: ' + error.message;
+        showNotification('❌ Print failed: ' + error.message, 'error');
+    } finally {
+        printButton.disabled = false;
+    }
+}
+
+// Add event listener for print button
+document.getElementById('print-barcode-btn').addEventListener('click', printLocationBarcode);
+
+// Test QZ Tray connection function (for debugging)
+async function testQZConnection() {
+    console.log('🔍 ========== QZ TRAY CONNECTION TEST ==========');
+    
+    const printStatus = document.getElementById('print-status');
+    const originalStatus = printStatus.textContent;
+    printStatus.textContent = 'Testing QZ Tray...';
+    
+    let testResults = [];
+    
+    try {
+        // Test 1: Check if library is loaded
+        if (typeof qz === 'undefined') {
+            testResults.push('❌ Test 1: Library NOT loaded');
+            throw new Error('QZ Tray library not loaded');
+        }
+        testResults.push('✅ Test 1: Library loaded successfully');
+        
+        // Test 2: Test connection
+        if (!qzTray) {
+            await initializeQZTray();
+        }
+        testResults.push('✅ Test 2: Connection successful');
+        
+        // Test 3: Test printer discovery
+        await loadQZTrayPrinters();
+        testResults.push(`✅ Test 3: Found ${availablePrinters.length} printers`);
+        
+        const resultMsg = 'QZ Tray Connection Test Results:\n\n' + testResults.join('\n');
+        showNotification(resultMsg, 'success');
+        printStatus.textContent = 'Test completed successfully';
+        
+    } catch (error) {
+        testResults.push(`❌ Test failed: ${error.message}`);
+        const resultMsg = 'QZ Tray Connection Test Results:\n\n' + testResults.join('\n');
+        showNotification(resultMsg, 'error');
+        printStatus.textContent = 'Test failed';
+    }
+    
+    setTimeout(() => {
+        printStatus.textContent = originalStatus;
+    }, 3000);
+}
+
+// Add test button functionality (for debugging - can be removed in production)
+console.log('🔧 QZ Tray test function available: testQZConnection()');
+</script>
 {% endblock %}

py_app/app/templates/print_lost_labels.html

@@ -125,8 +125,27 @@ table.view-orders-table.scan-table tbody tr.selected td {
     background-color: #6c757d;
     cursor: not-allowed;
 }
+
+/* Force barcode SVG elements to be black */
+#barcode-display rect,
+#vertical-barcode-display rect {
+    fill: #000000 !important;
+    stroke: #000000 !important;
+}
+
+#barcode-display path,
+#vertical-barcode-display path {
+    fill: #000000 !important;
+    stroke: #000000 !important;
+}
+
+/* Ensure barcode frames have proper contrast */
+#barcode-frame,
+#vertical-barcode-frame {
+    background: #ffffff !important;
+    border: 1px solid #ddd;
+}
 </style>
-<script src="https://cdn.jsdelivr.net/npm/jsbarcode@3.11.5/dist/JsBarcode.all.min.js"></script>
 {% endblock %}
 
 {% block content %}
@@ -194,7 +213,69 @@ table.view-orders-table.scan-table tbody tr.selected td {
                     <div id="vertical-barcode-text" style="position: absolute; bottom: -15px; font-size: 7px; font-family: 'Courier New', monospace; text-align: center; font-weight: bold; width: 100%;"></div>
                 </div>
             </div>
-            <!-- Print Options removed as requested -->
+            <!-- Print Options (copied from print_module.html) -->
+            <div style="width: 100%; margin-top: 20px;">
+                <!-- Print Method Selection -->
+                <div style="margin-bottom: 15px;" role="group" aria-labelledby="print-method-label">
+                    <div id="print-method-label" style="font-size: 12px; font-weight: 600; color: #495057; margin-bottom: 8px;">
+                        📄 Print Method:
+                    </div>
+                    <div class="form-check" style="margin-bottom: 6px;">
+                        <input class="form-check-input" type="radio" name="printMethod" id="qzTrayPrint" value="qztray" checked>
+                        <label class="form-check-label" for="qzTrayPrint" style="font-size: 11px; line-height: 1.2;">
+                            <strong>🖨️ Direct Print</strong> <span id="qztray-status" class="badge badge-success" style="font-size: 9px; padding: 2px 6px;">Ready</span>
+                        </label>
+                    </div>
+                    <div class="form-check" id="pdf-option-container" style="display: none; margin-bottom: 6px;">
+                        <input class="form-check-input" type="radio" name="printMethod" id="pdfGenerate" value="pdf">
+                        <label class="form-check-label" for="pdfGenerate" style="font-size: 11px; line-height: 1.2;">
+                            <strong>📄 PDF Export</strong> <span class="text-muted" style="font-size: 10px;">(fallback)</span>
+                        </label>
+                    </div>
+                </div>
+                <!-- Printer Selection for QZ Tray (Compact) -->
+                <div id="qztray-printer-selection" style="margin-bottom: 10px;">
+                    <label for="qztray-printer-select" style="font-size: 11px; font-weight: 600; color: #495057; margin-bottom: 3px; display: block;">
+                        Printer:
+                    </label>
+                    <select id="qztray-printer-select" class="form-control form-control-sm" style="font-size: 11px; padding: 3px 6px;">
+                        <option value="">Loading...</option>
+                    </select>
+                </div>
+                <!-- Labels Range Selection -->
+                <div style="margin-bottom: 15px;">
+                    <label for="labels-range-input" style="font-size: 11px; font-weight: 600; color: #495057; margin-bottom: 3px; display: block;">
+                        Select Labels Range:
+                    </label>
+                    <input type="text" id="labels-range-input" class="form-control form-control-sm" 
+                           placeholder="e.g., 003 or 003-007" 
+                           style="font-size: 11px; padding: 3px 6px; text-align: center;">
+                    <div style="font-size: 9px; color: #6c757d; margin-top: 2px; text-align: center;">
+                        Single: "005" | Range: "003-007" | Leave empty for all
+                    </div>
+                </div>
+                <!-- Print Button -->
+                <div style="width: 100%; text-align: center; margin-bottom: 10px;">
+                    <button id="print-label-btn" class="btn btn-success" style="font-size: 13px; padding: 8px 24px; border-radius: 5px; font-weight: 600;">
+                        🖨️ Print Labels
+                    </button>
+                </div>
+                <!-- Print Information -->
+                <div style="width: 100%; text-align: center; color: #6c757d; font-size: 10px; line-height: 1.3;">
+                    <small>(e.g., CP00000711-001, 002, ...)</small>
+                </div>
+                <!-- QZ Tray Installation Info - Simplified -->
+                <div id="qztray-info" style="width: 100%; margin-top: 15px; padding-top: 15px; border-top: 1px solid #e9ecef;">
+                    <div style="background: #f8f9fa; border: 1px solid #dee2e6; border-radius: 6px; padding: 10px; text-align: center;">
+                        <div style="font-size: 10px; color: #495057; margin-bottom: 8px;">
+                            QZ Tray is required for direct printing
+                        </div>
+                        <a href="https://filebrowser.moto-adv.com/filebrowser/api/public/dl/Fk0ZaiEY/QP_Tray/qz-tray-2.2.6-SNAPSHOT-x86_64.exe?token=TJ7gSu3CRcWWQuyFLoZv5I8j4diDjP47DDqWRtM0oKAx-2_orj1stfKPJsuuqKR9mE2GQNm1jlZ0BPR7lfZ3gHmu56SkY9fC5AJlC9n_80oX643ojlGc-U7XVb1SDd0w" class="btn btn-outline-secondary btn-sm" style="font-size: 10px; padding: 4px 16px;">
+                            📥 Download QZ Tray
+                        </a>
+                    </div>
+                </div>
+            </div>
         </div>
         <!-- Orders Table Card (right, with load button and notification system) -->
         <div class="card scan-table-card" style="min-height: 700px; width: calc(100% - 350px); margin: 0;">
@@ -231,11 +312,23 @@ table.view-orders-table.scan-table tbody tr.selected td {
     </div>
 </div>
 
+<!-- JavaScript Libraries -->
+<!-- JsBarcode library for real barcode generation -->
+<script src="{{ url_for('static', filename='JsBarcode.all.min.js') }}"></script>
+<!-- Add html2canvas library for capturing preview as image -->
+<script src="{{ url_for('static', filename='html2canvas.min.js') }}"></script>
+<!-- PATCHED QZ Tray library - works with custom server using pairing key authentication -->
+<script src="{{ url_for('static', filename='qz-tray.js') }}"></script>
 <script>
+
 // Store all orders data for searching
 const allOrders = {{ orders|tojson|safe }};
 let selectedOrderData = null;
 
+// QZ Tray Integration
+let qzTray = null;
+let availablePrinters = [];
+
 function searchOrder() {
     const searchValue = document.getElementById('search-input').value.trim().toLowerCase();
     if (!searchValue) {
@@ -274,13 +367,26 @@ function fetchMatchingOrders() {
     }
     matchingOrders.forEach((order, idx) => {
         const tr = document.createElement('tr');
+        // Format data_livrare as DD/MM/YYYY if possible
+        let dataLivrareFormatted = '-';
+        if (order.data_livrare) {
+            const d = new Date(order.data_livrare);
+            if (!isNaN(d)) {
+                const day = String(d.getDate()).padStart(2, '0');
+                const month = String(d.getMonth() + 1).padStart(2, '0');
+                const year = d.getFullYear();
+                dataLivrareFormatted = `${day}/${month}/${year}`;
+            } else {
+                dataLivrareFormatted = order.data_livrare;
+            }
+        }
         tr.innerHTML = `
             <td>${order.id}</td>
             <td><strong>${order.comanda_productie}</strong></td>
             <td>${order.cod_articol || '-'}</td>
             <td>${order.descr_com_prod}</td>
             <td style="text-align: right; font-weight: 600;">${order.cantitate}</td>
-            <td style="text-align: center;">${order.data_livrare || '-'}</td>
+            <td style="text-align: center;">${dataLivrareFormatted}</td>
             <td style="text-align: center;">${order.dimensiune || '-'}</td>
             <td>${order.com_achiz_client || '-'}</td>
             <td style="text-align: right;">${order.nr_linie_com_client || '-'}</td>
@@ -292,12 +398,296 @@ function fetchMatchingOrders() {
             <td style="font-size: 11px; color: #6c757d;">${order.created_at || '-'}</td>
             <td>1</td>
         `;
+        tr.addEventListener('click', function() {
+            document.querySelectorAll('.print-module-table tbody tr').forEach(row => {
+                row.classList.remove('selected');
+                const cells = row.querySelectorAll('td');
+                cells.forEach(cell => {
+                    cell.style.backgroundColor = '';
+                    cell.style.color = '';
+                });
+            });
+            this.classList.add('selected');
+            const cells = this.querySelectorAll('td');
+            cells.forEach(cell => {
+                cell.style.backgroundColor = '#007bff';
+                cell.style.color = 'white';
+            });
+            updatePreviewCard(order);
+        });
         tbody.appendChild(tr);
         // Update preview card with the first matching order
         if (idx === 0) updatePreviewCard(order);
     });
 }
 
+// QZ Tray and Print Button Logic (copied/adapted from print_module.html)
+async function initializeQZTray() {
+    try {
+        if (typeof qz === 'undefined') {
+            document.getElementById('qztray-status').textContent = 'Library Error';
+            document.getElementById('qztray-status').className = 'badge badge-danger';
+            return false;
+        }
+        qz.websocket.setClosedCallbacks(function() {
+            document.getElementById('qztray-status').textContent = 'Disconnected';
+            document.getElementById('qztray-status').className = 'badge badge-warning';
+        });
+        await qz.websocket.connect();
+        qzTray = qz;
+        const version = await qz.api.getVersion();
+        document.getElementById('qztray-status').textContent = 'Ready';
+        document.getElementById('qztray-status').className = 'badge badge-success';
+        document.getElementById('qztray-printer-selection').style.display = 'block';
+        document.getElementById('pdf-option-container').style.display = 'none';
+        await loadQZTrayPrinters();
+        return true;
+    } catch (error) {
+        document.getElementById('qztray-status').textContent = 'Not Connected';
+        document.getElementById('qztray-status').className = 'badge badge-danger';
+        document.getElementById('qztray-printer-selection').style.display = 'none';
+        document.getElementById('pdf-option-container').style.display = 'block';
+        document.getElementById('pdfGenerate').checked = true;
+        document.getElementById('qzTrayPrint').disabled = true;
+        return false;
+    }
+}
+
+async function loadQZTrayPrinters() {
+    try {
+        if (!qzTray) return;
+        const printers = await qzTray.printers.find();
+        availablePrinters = printers;
+        const printerSelect = document.getElementById('qztray-printer-select');
+        printerSelect.innerHTML = '<option value="">Select a printer...</option>';
+        printers.forEach(printer => {
+            const option = document.createElement('option');
+            option.value = printer;
+            option.textContent = printer;
+            printerSelect.appendChild(option);
+        });
+        const thermalPrinter = printers.find(p => 
+            p.toLowerCase().includes('thermal') || 
+            p.toLowerCase().includes('label') ||
+            p.toLowerCase().includes('zebra') ||
+            p.toLowerCase().includes('epson')
+        );
+        if (thermalPrinter) {
+            printerSelect.value = thermalPrinter;
+        }
+    } catch (error) {}
+}
+
+// Print Button Handler
+document.addEventListener('DOMContentLoaded', function() {
+    setTimeout(initializeQZTray, 1000);
+    document.getElementById('print-label-btn').addEventListener('click', async function(e) {
+        e.preventDefault();
+        const selectedRow = document.querySelector('.print-module-table tbody tr.selected');
+        if (!selectedRow) {
+            alert('Please select an order first from the table below.');
+            return;
+        }
+        const printMethod = document.querySelector('input[name="printMethod"]:checked').value;
+        if (printMethod === 'qztray') {
+            await handleQZTrayPrint(selectedRow);
+        } else {
+            handlePDFGeneration(selectedRow);
+        }
+    });
+    document.querySelectorAll('input[name="printMethod"]').forEach(radio => {
+        radio.addEventListener('change', updatePrintMethodUI);
+    });
+    updatePrintMethodUI();
+});
+
+function updatePrintMethodUI() {
+    const printMethod = document.querySelector('input[name="printMethod"]:checked').value;
+    const printerSelection = document.getElementById('qztray-printer-selection');
+    const printButton = document.getElementById('print-label-btn');
+    if (printMethod === 'qztray') {
+        printButton.textContent = '🖨️ Print Labels';
+        printButton.className = 'btn btn-primary';
+    } else {
+        printerSelection.style.display = 'none';
+        printButton.textContent = '📄 Generate PDF';
+        printButton.className = 'btn btn-success';
+    }
+}
+
+async function handleQZTrayPrint(selectedRow) {
+    try {
+        if (!qzTray) {
+            await initializeQZTray();
+            if (!qzTray) throw new Error('QZ Tray not available');
+        }
+        const selectedPrinter = document.getElementById('qztray-printer-select').value;
+        if (!selectedPrinter) {
+            alert('Please select a printer first');
+            return;
+        }
+        const cells = selectedRow.querySelectorAll('td');
+        const orderData = {
+            id: cells[0].textContent,
+            comanda_productie: cells[1].textContent.trim(),
+            cod_articol: cells[2].textContent.trim(),
+            descr_com_prod: cells[3].textContent.trim(),
+            cantitate: parseInt(cells[4].textContent.trim()),
+            data_livrare: cells[5].textContent.trim(),
+            dimensiune: cells[6].textContent.trim(),
+            com_achiz_client: cells[7].textContent.trim(),
+            nr_linie_com_client: cells[8].textContent.trim(),
+            customer_name: cells[9].textContent.trim()
+        };
+        
+        // Parse labels range input
+        const labelsRangeInput = document.getElementById('labels-range-input').value.trim();
+        let labelNumbers = [];
+        
+        if (labelsRangeInput) {
+            if (labelsRangeInput.includes('-')) {
+                // Range format: "003-007"
+                const rangeParts = labelsRangeInput.split('-');
+                if (rangeParts.length === 2) {
+                    const start = parseInt(rangeParts[0]);
+                    const end = parseInt(rangeParts[1]);
+                    if (!isNaN(start) && !isNaN(end) && start > 0 && end >= start && end <= orderData.cantitate) {
+                        for (let i = start; i <= end; i++) {
+                            labelNumbers.push(i);
+                        }
+                    } else {
+                        alert(`Invalid range. Please use format "001-${String(orderData.cantitate).padStart(3, '0')}" or single number.`);
+                        return;
+                    }
+                } else {
+                    alert('Invalid range format. Use "003-007" format.');
+                    return;
+                }
+            } else {
+                // Single number format: "005"
+                const singleNumber = parseInt(labelsRangeInput);
+                if (!isNaN(singleNumber) && singleNumber > 0 && singleNumber <= orderData.cantitate) {
+                    labelNumbers.push(singleNumber);
+                } else {
+                    alert(`Invalid label number. Please use 1-${orderData.cantitate}.`);
+                    return;
+                }
+            }
+        } else {
+            // No range specified, print all labels (original behavior)
+            for (let i = 1; i <= orderData.cantitate; i++) {
+                labelNumbers.push(i);
+            }
+        }
+        
+        // Print the specified labels
+        for (let i = 0; i < labelNumbers.length; i++) {
+            const labelNumber = labelNumbers[i];
+            await generatePDFAndPrint(selectedPrinter, orderData, labelNumber, orderData.cantitate);
+            if (i < labelNumbers.length - 1) await new Promise(resolve => setTimeout(resolve, 500));
+        }
+        
+        // Show success message
+        const rangeText = labelsRangeInput ? 
+            (labelNumbers.length === 1 ? `label ${String(labelNumbers[0]).padStart(3, '0')}` : 
+             `labels ${String(labelNumbers[0]).padStart(3, '0')}-${String(labelNumbers[labelNumbers.length-1]).padStart(3, '0')}`) :
+            `all ${orderData.cantitate} labels`;
+        alert(`Successfully printed ${rangeText} for order ${orderData.comanda_productie}`);
+        
+    } catch (error) {
+        alert('QZ Tray print error: ' + error.message);
+    }
+}
+
+async function generatePDFAndPrint(selectedPrinter, orderData, pieceNumber, totalPieces) {
+    try {
+        const pdfData = {
+            ...orderData,
+            quantity: 1,
+            piece_number: pieceNumber,
+            total_pieces: totalPieces
+        };
+        const response = await fetch('/generate_label_pdf', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify(pdfData)
+        });
+        if (!response.ok) throw new Error('Failed to generate PDF');
+        const pdfBlob = await response.blob();
+        const pdfBase64 = await new Promise((resolve, reject) => {
+            const reader = new FileReader();
+            reader.onloadend = () => resolve(reader.result.split(',')[1]);
+            reader.onerror = reject;
+            reader.readAsDataURL(pdfBlob);
+        });
+        const config = qz.configs.create(selectedPrinter, {
+            scaleContent: false,
+            rasterize: false,
+            size: { width: 80, height: 100 },
+            units: 'mm',
+            margins: { top: 0, right: 0, bottom: 0, left: 0 }
+        });
+        const data = [{ type: 'pdf', format: 'base64', data: pdfBase64 }];
+        await qz.print(config, data);
+    } catch (error) {
+        throw error;
+    }
+}
+
+function handlePDFGeneration(selectedRow) {
+    // Check if labels range is specified
+    const labelsRangeInput = document.getElementById('labels-range-input').value.trim();
+    if (labelsRangeInput) {
+        alert('PDF generation currently supports printing all labels only. Please use QZ Tray for custom label ranges, or leave the range field empty for PDF generation.');
+        return;
+    }
+    
+    const orderId = selectedRow.querySelector('td').textContent;
+    const quantityCell = selectedRow.querySelector('td:nth-child(5)');
+    const quantity = quantityCell ? parseInt(quantityCell.textContent) : 1;
+    const prodOrderCell = selectedRow.querySelector('td:nth-child(2)');
+    const prodOrder = prodOrderCell ? prodOrderCell.textContent.trim() : 'N/A';
+    const button = document.getElementById('print-label-btn');
+    const originalText = button.textContent;
+    button.textContent = 'Generating PDF...';
+    button.disabled = true;
+    fetch(`/generate_labels_pdf/${orderId}/true`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' }
+    })
+    .then(response => {
+        if (!response.ok) throw new Error(`HTTP error! status: ${response.status}`);
+        return response.blob();
+    })
+    .then(blob => {
+        const url = window.URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = `labels_${prodOrder}_${quantity}pcs.pdf`;
+        document.body.appendChild(a);
+        a.click();
+        document.body.removeChild(a);
+        const printWindow = window.open(url, '_blank');
+        if (printWindow) {
+            printWindow.focus();
+            setTimeout(() => {
+                printWindow.print();
+                setTimeout(() => { window.URL.revokeObjectURL(url); }, 2000);
+            }, 1500);
+        } else {
+            setTimeout(() => { window.URL.revokeObjectURL(url); }, 1000);
+        }
+        setTimeout(() => {}, 1000);
+    })
+    .catch(error => {
+        alert('Failed to generate PDF labels. Error: ' + error.message);
+    })
+    .finally(() => {
+        button.textContent = originalText;
+        button.disabled = false;
+    });
+}
+
 // Update the preview card with order data (as in print_module.html)
 function updatePreviewCard(order) {
     function set(id, value) {
@@ -325,21 +715,128 @@ function updatePreviewCard(order) {
     set('customer-name-row', order.customer_name || '');
     set('quantity-ordered-value', order.cantitate || '');
     set('client-order-info', (order.com_achiz_client && order.nr_linie_com_client) ? `${order.com_achiz_client}-${order.nr_linie_com_client}` : '');
-    set('delivery-date-value', order.data_livrare || '');
+    // Format delivery date as DD/MM/YYYY
+    let deliveryDateFormatted = '';
+    if (order.data_livrare) {
+        const d = new Date(order.data_livrare);
+        if (!isNaN(d)) {
+            const day = String(d.getDate()).padStart(2, '0');
+            const month = String(d.getMonth() + 1).padStart(2, '0');
+            const year = d.getFullYear();
+            deliveryDateFormatted = `${day}/${month}/${year}`;
+        } else {
+            deliveryDateFormatted = order.data_livrare;
+        }
+    }
+    set('delivery-date-value', deliveryDateFormatted);
     set('description-value', order.descr_com_prod || '');
     set('size-value', order.dimensiune || '');
     set('article-code-value', order.cod_articol || '');
     set('prod-order-value', (order.comanda_productie && order.cantitate) ? `${order.comanda_productie}-${order.cantitate}` : '');
     set('barcode-text', order.comanda_productie ? `${order.comanda_productie}/001` : '');
     set('vertical-barcode-text', (order.com_achiz_client && order.nr_linie_com_client) ? `${order.com_achiz_client}/${order.nr_linie_com_client}` : '');
-    // Generate barcodes if JsBarcode is available
-    if (typeof JsBarcode !== 'undefined') {
+    // Generate barcodes if JsBarcode is available (with debugging like print_module.html)
+    const horizontalBarcodeData = order.comanda_productie ? `${order.comanda_productie}/001` : 'N/A';
+    const verticalBarcodeData = (order.com_achiz_client && order.nr_linie_com_client) ? `${order.com_achiz_client}/${order.nr_linie_com_client}` : '000000/00';
+    
+    console.log('🔍 BARCODE DEBUG - Order data:', order);
+    console.log('🔍 Attempting to generate horizontal barcode:', horizontalBarcodeData);
+    console.log('🔍 JsBarcode available?', typeof JsBarcode !== 'undefined');
+    console.log('🔍 JsBarcode object:', typeof JsBarcode !== 'undefined' ? JsBarcode : 'undefined');
+    
+    // Function to generate barcodes (can be called after library loads)
+    const generateBarcodes = () => {
+        if (horizontalBarcodeData !== 'N/A' && typeof JsBarcode !== 'undefined') {
             try {
-            JsBarcode("#barcode-display", order.comanda_productie ? `${order.comanda_productie}/001` : ' ', { format: "CODE128", width: 2, height: 40, displayValue: false, margin: 2 });
-        } catch (e) {}
+                const barcodeElement = document.querySelector("#barcode-display");
+                console.log('🔍 Horizontal barcode element:', barcodeElement);
+                console.log('🔍 Element innerHTML before:', barcodeElement ? barcodeElement.innerHTML : 'null');
+                
+                JsBarcode("#barcode-display", horizontalBarcodeData, {
+                    format: "CODE128",
+                    width: 2,
+                    height: 40,
+                    displayValue: false,
+                    margin: 2,
+                    lineColor: "#000000",
+                    background: "#ffffff"
+                });
+                
+                console.log('🔍 Element innerHTML after:', barcodeElement ? barcodeElement.innerHTML : 'null');
+                console.log('✅ Horizontal barcode generated successfully');
+                
+                // Force black color on all barcode elements
+                const barcodeSvg = document.getElementById('barcode-display');
+                if (barcodeSvg) {
+                    console.log('🔍 SVG elements found:', barcodeSvg.querySelectorAll('rect, path').length);
+                    barcodeSvg.querySelectorAll('rect').forEach((r, i) => { 
+                        console.log(`🔍 Setting rect ${i} to black`);
+                        r.setAttribute('fill', '#000000'); 
+                        r.setAttribute('stroke', '#000000'); 
+                    });
+                    barcodeSvg.querySelectorAll('path').forEach((p, i) => { 
+                        console.log(`🔍 Setting path ${i} to black`);
+                        p.setAttribute('fill', '#000000'); 
+                        p.setAttribute('stroke', '#000000'); 
+                    });
+                }
+            } catch (e) {
+                console.error('❌ Failed to generate horizontal barcode:', e);
+            }
+        } else {
+            console.warn('⚠️ Skipping horizontal barcode generation:', 
+                horizontalBarcodeData === 'N/A' ? 'No data' : 'JsBarcode not loaded');
+        }
+        
+        // Generate vertical barcode visual using JsBarcode (will be rotated by CSS)
+        console.log('🔍 Attempting to generate vertical barcode:', verticalBarcodeData);
+        
+        if (verticalBarcodeData !== '000000/00' && typeof JsBarcode !== 'undefined') {
             try {
-            JsBarcode("#vertical-barcode-display", (order.com_achiz_client && order.nr_linie_com_client) ? `${order.com_achiz_client}/${order.nr_linie_com_client}` : ' ', { format: "CODE128", width: 1.5, height: 35, displayValue: false, margin: 2 });
-        } catch (e) {}
+                const verticalElement = document.querySelector("#vertical-barcode-display");
+                console.log('🔍 Vertical barcode element:', verticalElement);
+                
+                JsBarcode("#vertical-barcode-display", verticalBarcodeData, {
+                    format: "CODE128",
+                    width: 1.5,
+                    height: 35,
+                    displayValue: false,
+                    margin: 2,
+                    lineColor: "#000000",
+                    background: "#ffffff"
+                });
+                console.log('✅ Vertical barcode generated successfully');
+                
+                // Force black color on all vertical barcode elements
+                const vbarcodeSvg = document.getElementById('vertical-barcode-display');
+                if (vbarcodeSvg) {
+                    vbarcodeSvg.querySelectorAll('rect').forEach(r => { 
+                        r.setAttribute('fill', '#000000'); 
+                        r.setAttribute('stroke', '#000000'); 
+                    });
+                    vbarcodeSvg.querySelectorAll('path').forEach(p => { 
+                        p.setAttribute('fill', '#000000'); 
+                        p.setAttribute('stroke', '#000000'); 
+                    });
+                }
+            } catch (e) {
+                console.error('❌ Failed to generate vertical barcode:', e);
+            }
+        } else {
+            console.warn('⚠️ Skipping vertical barcode generation:', 
+                verticalBarcodeData === '000000/00' ? 'Default value' : 'JsBarcode not loaded');
+        }
+    };
+    
+    // Try to generate immediately
+    generateBarcodes();
+    
+    // If JsBarcode is not loaded, wait a bit and try again (for CDN fallback)
+    if (typeof JsBarcode === 'undefined') {
+        setTimeout(() => {
+            console.log('🔍 Retry after 1s - JsBarcode available?', typeof JsBarcode !== 'undefined');
+            generateBarcodes();
+        }, 1000);
     }
 }
 

py_app/app/templates/print_module.html

@@ -257,9 +257,9 @@
 
 <!-- JavaScript Libraries -->
 <!-- JsBarcode library for real barcode generation -->
-<script src="https://cdn.jsdelivr.net/npm/jsbarcode@3.11.5/dist/JsBarcode.all.min.js"></script>
+<script src="{{ url_for('static', filename='JsBarcode.all.min.js') }}"></script>
 <!-- Add html2canvas library for capturing preview as image -->
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
+<script src="{{ url_for('static', filename='html2canvas.min.js') }}"></script>
 <!-- PATCHED QZ Tray library - works with custom server using pairing key authentication -->
 <script src="{{ url_for('static', filename='qz-tray.js') }}"></script>
 <!-- Original CDN version (disabled): <script src="https://cdn.jsdelivr.net/npm/qz-tray@2.2.4/qz-tray.js"></script> -->

py_app/app/warehouse.py

@@ -1,6 +1,11 @@
 import mariadb
-from flask import current_app, request, render_template, session, redirect, url_for
+from flask import current_app, request, render_template, session, redirect, url_for, jsonify, make_response
 import csv, os, tempfile
+from reportlab.lib.pagesizes import letter
+from reportlab.pdfgen import canvas
+from reportlab.lib.units import cm
+from reportlab.graphics.barcode import code128
+import io
 
 def get_db_connection():
     settings_file = current_app.instance_path + '/external_server.conf'
@@ -148,3 +153,68 @@ def import_locations_csv_handler():
     elif 'csv_locations' in session:
         locations = session['csv_locations']
     return render_template('import_locations_csv.html', report=report, locations=locations)
+
+def generate_location_label_pdf():
+    """Generate PDF for location barcode label (8x4cm)"""
+    try:
+        data = request.get_json()
+        location_code = data.get('location_code', '')
+        
+        if not location_code:
+            return jsonify({'error': 'Location code is required'}), 400
+        
+        # Create PDF in memory
+        buffer = io.BytesIO()
+        
+        # Create PDF with 8x4cm page size (width x height)
+        page_width = 8 * cm
+        page_height = 4 * cm
+        
+        c = canvas.Canvas(buffer, pagesize=(page_width, page_height))
+        
+        # Generate Code128 barcode
+        barcode = code128.Code128(location_code, barWidth=1.0, humanReadable=False)
+        
+        # Calculate the desired barcode dimensions (fill most of the label)
+        desired_barcode_width = 7 * cm  # Almost full width
+        desired_barcode_height = 2.5 * cm  # Most of the height
+        
+        # Calculate scaling factor to fit the desired width
+        scale = desired_barcode_width / barcode.width
+        
+        # Calculate actual dimensions after scaling
+        actual_width = barcode.width * scale
+        actual_height = barcode.height * scale
+        
+        # Center the barcode on the label
+        barcode_x = (page_width - actual_width) / 2
+        barcode_y = (page_height - actual_height) / 2 + 0.3 * cm  # Slightly above center for text space
+        
+        # Draw barcode with scaling
+        c.saveState()
+        c.translate(barcode_x, barcode_y)
+        c.scale(scale, scale)
+        barcode.drawOn(c, 0, 0)
+        c.restoreState()
+        
+        # Add location code text below barcode
+        c.setFont("Helvetica-Bold", 10)
+        text_width = c.stringWidth(location_code, "Helvetica-Bold", 10)
+        text_x = (page_width - text_width) / 2
+        text_y = barcode_y - 0.5 * cm  # Below the barcode
+        c.drawString(text_x, text_y, location_code)
+        
+        # Finalize PDF
+        c.save()
+        
+        # Prepare response
+        buffer.seek(0)
+        response = make_response(buffer.getvalue())
+        response.headers['Content-Type'] = 'application/pdf'
+        response.headers['Content-Disposition'] = f'inline; filename=location_{location_code}_label.pdf'
+        
+        return response
+        
+    except Exception as e:
+        print(f"Error generating location label PDF: {e}")
+        return jsonify({'error': str(e)}), 500