{% extends "base.html" %}

{% block head %}
<style>
#label-preview {
    background: #fafafa;
    position: relative;
    overflow: hidden;
}

/* Inserted custom CSS from user */
.card.scan-table-card table.print-module-table.scan-table thead th {
    border-bottom: 2px solid #dee2e6 !important;
    background-color: #f8f9fa !important;
    padding: 0.25rem 0.4rem !important;
    text-align: left !important;
    font-weight: 600 !important;
    font-size: 10px !important;
    line-height: 1.2 !important;
}

/* Enhanced table styling */
.card.scan-table-card table.print-module-table.scan-table {
    width: 100% !important;
    border-collapse: collapse !important;
}

.card.scan-table-card table.print-module-table.scan-table tbody tr:hover td {
    background-color: #f8f9fa !important;
    cursor: pointer !important;
}

.card.scan-table-card table.print-module-table.scan-table tbody tr.selected td {
    background-color: #007bff !important;
    color: white !important;
}
</style>
{% endblock %}

{% block content %}
<div class="scan-container" style="display: flex; flex-direction: row; gap: 20px; width: 100%; align-items: flex-start;">
    <!-- Label Preview Card -->
    <div class="card scan-form-card" style="display: flex; flex-direction: column; justify-content: flex-start; align-items: center; min-height: 480px; width: 330px; flex-shrink: 0; position: relative;">
        <div class="label-view-title" style="width: 100%; text-align: center; padding: 18px 0 0 0; font-size: 18px; font-weight: bold; letter-spacing: 0.5px;">Label View</div>
        <div id="label-preview" style="border: 1px solid #ddd; padding: 10px; position: relative; background: #fafafa; width: 301px; height: 434.7px;">
            <!-- Label content rectangle -->
            <div id="label-content" style="position: absolute; top: 65.7px; left: 11.34px; width: 227.4px; height: 321.3px; border: 2px solid #333; background: white;">
                <!-- Top row content: Company name -->
                <div style="position: absolute; top: 0; left: 0; right: 0; height: 32.13px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 12px; color: #000; z-index: 10;">
                    INNOFA RROMANIA SRL
                </div>

                <!-- Row 2 content: Customer Name -->
                <div id="customer-name-row" style="position: absolute; top: 32.13px; left: 0; right: 0; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 11px; color: #000;">
                    <!-- Customer name will be populated here -->
                </div>

                <!-- Horizontal dividing lines for 9 rows (row 6 is double height) -->
                <div style="position: absolute; top: 32.13px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 64.26px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 96.39px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 128.52px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <div style="position: absolute; top: 160.65px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <!-- Row 6 is double height for Description -->
                <div style="position: absolute; top: 224.91px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <!-- Row 7 for Size -->
                <div style="position: absolute; top: 257.04px; left: 0; right: 0; height: 1px; background: #999;"></div>
                <!-- Row 8 for Article Code -->
                <div style="position: absolute; top: 289.17px; left: 0; right: 0; height: 1px; background: #999;"></div>

                <!-- Vertical dividing line starting from row 3 to bottom at 40% width -->
                <div style="position: absolute; left: 90.96px; top: 64.26px; width: 1px; height: 257.04px; background: #999;"></div>

                <!-- Row 3 content: Quantity ordered -->
                <div style="position: absolute; top: 64.26px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Quantity ordered
                </div>
                <div id="quantity-ordered-value" style="position: absolute; top: 64.26px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: bold; color: #000;">
                    <!-- Quantity value will be populated here -->
                </div>

                <!-- Row 4 content: Customer order -->
                <div style="position: absolute; top: 96.39px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Customer order
                </div>
                <div id="client-order-info" style="position: absolute; top: 96.39px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Client order info will be populated here -->
                </div>

                <!-- Row 5 content: Delivery date -->
                <div style="position: absolute; top: 128.52px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Delivery date
                </div>
                <div id="delivery-date-value" style="position: absolute; top: 128.52px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Delivery date value will be populated here -->
                </div>

                <!-- Row 6 content: Description (double height row) -->
                <div style="position: absolute; top: 160.65px; left: 0; width: 90.96px; height: 64.26px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Description
                </div>
                <div id="description-value" style="position: absolute; top: 160.65px; left: 90.96px; width: 136.44px; height: 64.26px; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: bold; color: #000; text-align: center; line-height: 1.2; padding: 2px; overflow: hidden; word-wrap: break-word;">
                    <!-- Description value will be populated here -->
                </div>

                <!-- Row 7 content: Size -->
                <div style="position: absolute; top: 224.91px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Size
                </div>
                <div id="size-value" style="position: absolute; top: 224.91px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Size value will be populated here -->
                </div>

                <!-- Row 8 content: Article Code -->
                <div style="position: absolute; top: 257.04px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Article Code
                </div>
                <div id="article-code-value" style="position: absolute; top: 257.04px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Article code value will be populated here -->
                </div>

                <!-- Row 9 content: Prod Order (final row) -->
                <div style="position: absolute; top: 289.17px; left: 0; width: 90.96px; height: 32.13px; display: flex; align-items: center; padding-left: 5px; font-size: 10px; color: #000;">
                    Prod Order
                </div>
                <div id="prod-order-value" style="position: absolute; top: 289.17px; left: 90.96px; width: 136.44px; height: 32.13px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold; color: #000;">
                    <!-- Prod order value will be populated here -->
                </div>
            </div>
            
            <!-- Barcode Frame - positioned 10px below rectangle with 2mm side margins -->
            <div id="barcode-frame" style="position: absolute; top: 395px; left: 7.56px; width: 295.44px; height: 50px; background: white; display: flex; flex-direction: column; align-items: center; justify-content: center;">
                <!-- Code 128 Barcode representation -->
                <div id="barcode-display" style="width: 100%; height: 45px; background: linear-gradient(90deg, #000 1px, transparent 1px, transparent 2px, #000 2px, transparent 3px, #000 4px, transparent 5px, #000 6px, transparent 7px, #000 8px, transparent 9px, #000 10px, transparent 11px, #000 12px, transparent 13px); background-size: 15px 100%; background-repeat: repeat-x;">
                </div>
                <!-- Barcode text below the bars -->
                <div id="barcode-text" style="font-size: 8px; font-family: 'Courier New', monospace; margin-top: 2px; text-align: center; font-weight: bold;">
                    <!-- Barcode text will be populated here -->
                </div>
            </div>
            
            <!-- Vertical Barcode Frame - positioned on the right side of the label -->
            <div id="vertical-barcode-frame" style="position: absolute; top: 70px; left: 245px; width: 50px; height: 309.96px; background: white; display: flex; flex-direction: column; align-items: center; justify-content: center;">
                <!-- Vertical Code 128 Barcode representation -->
                <div id="vertical-barcode-display" style="width: 50px; height: 280px; background: linear-gradient(0deg, #000 1px, transparent 1px, transparent 2px, #000 2px, transparent 3px, #000 4px, transparent 5px, #000 6px, transparent 7px, #000 8px, transparent 9px, #000 10px, transparent 11px, #000 12px, transparent 13px); background-size: 100% 15px; background-repeat: repeat-y;">
                </div>
                <!-- Vertical barcode text -->
                <div id="vertical-barcode-text" style="font-size: 6px; font-family: 'Courier New', monospace; margin-top: 5px; text-align: center; font-weight: bold; writing-mode: vertical-rl; text-orientation: mixed;">
                    <!-- Vertical barcode text will be populated here -->
                </div>
            </div>
        </div>
        </div>
        
        <button id="print-label-btn" class="btn btn-success" style="margin-top: 15px;">Generate PDF</button>
    </div>

    <!-- Data Preview Card -->
    <div class="card scan-table-card" style="min-height: 700px; width: calc(100% - 350px); margin: 0;">
        <h3>Data Preview (Unprinted Orders)</h3>
        <button id="check-db-btn" class="btn btn-primary mb-3">Check Database</button>
        <div class="report-table-container">
            <table class="scan-table print-module-table">
                <thead>
                    <tr>
                        <th>ID</th>
                        <th>Comanda Productie</th>
                        <th>Cod Articol</th>
                        <th>Descr. Com. Prod</th>
                        <th>Cantitate</th>
                        <th>Data Livrare</th>
                        <th>Dimensiune</th>
                        <th>Com. Achiz. Client</th>
                        <th>Nr. Linie</th>
                        <th>Customer Name</th>
                        <th>Customer Art. Nr.</th>
                        <th>Open Order</th>
                        <th>Line</th>
                        <th>Printed</th>
                        <th>Created</th>
                    </tr>
                </thead>
                <tbody id="unprinted-orders-table">
                    <!-- Data will be dynamically loaded here -->
                </tbody>
            </table>
        </div>
    </div>
</div>

<script>
document.getElementById('check-db-btn').addEventListener('click', function() {
    const button = this;
    button.textContent = 'Loading...';
    button.disabled = true;

    fetch('/get_unprinted_orders')
        .then(response => {
            if (response.status === 403) {
                return response.json().then(errorData => {
                    throw new Error(`Access Denied: ${errorData.error}`);
                });
            } else if (!response.ok) {
                return response.text().then(text => {
                    throw new Error(`HTTP ${response.status}: ${text}`);
                });
            }
            return response.json();
        })
        .then(data => {
            console.log('Received data:', data);
            const tbody = document.getElementById('unprinted-orders-table');
            tbody.innerHTML = '';
            data.forEach((order, index) => {
                const tr = document.createElement('tr');
                tr.dataset.orderId = order.id;
                tr.dataset.orderIndex = index;
                tr.style.cursor = 'pointer';
                tr.innerHTML = `
                    <td style="font-size: 9px;">${order.id}</td>
                    <td style="font-size: 9px;"><strong>${order.comanda_productie}</strong></td>
                    <td style="font-size: 9px;">${order.cod_articol || '-'}</td>
                    <td style="font-size: 9px;">${order.descr_com_prod}</td>
                    <td style="text-align: right; font-weight: 600; font-size: 9px;">${order.cantitate}</td>
                    <td style="text-align: center; font-size: 9px;">
                        ${order.data_livrare ? new Date(order.data_livrare).toLocaleDateString() : '-'}
                    </td>
                    <td style="text-align: center; font-size: 9px;">${order.dimensiune || '-'}</td>
                    <td style="font-size: 9px;">${order.com_achiz_client || '-'}</td>
                    <td style="text-align: right; font-size: 9px;">${order.nr_linie_com_client || '-'}</td>
                    <td style="font-size: 9px;">${order.customer_name || '-'}</td>
                    <td style="font-size: 9px;">${order.customer_article_number || '-'}</td>
                    <td style="font-size: 9px;">${order.open_for_order || '-'}</td>
                    <td style="text-align: right; font-size: 9px;">${order.line_number || '-'}</td>
                    <td style="text-align: center; font-size: 9px;">
                        ${order.printed_labels == 1 ? 
                            '<span style="color: #28a745; font-weight: bold;">✓ Yes</span>' : 
                            '<span style="color: #dc3545;">✗ No</span>'}
                    </td>
                    <td style="font-size: 9px; color: #6c757d;">
                        ${order.created_at ? new Date(order.created_at).toLocaleString() : '-'}
                    </td>
                `;
                
                // Add click event for row selection
                tr.addEventListener('click', function() {
                    console.log('Row clicked:', order.id);
                    
                    // Remove selection from other rows
                    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 = '';
                        });
                    });
                    
                    // Select this row
                    this.classList.add('selected');
                    
                    // Force visual selection with inline styles
                    const cells = this.querySelectorAll('td');
                    cells.forEach(cell => {
                        cell.style.backgroundColor = '#007bff';
                        cell.style.color = 'white';
                    });
                    
                    // Update label preview with selected order data
                    updateLabelPreview(order);
                });
                
                tbody.appendChild(tr);
            });
            
            // Update the label preview with first row by default
            if (data.length > 0) {
                updateLabelPreview(data[0]);
                
                // Initialize PDF generation functionality
                addPDFGenerationHandler();
                
                // Auto-select first row
                setTimeout(() => {
                    const firstRow = document.querySelector('.print-module-table tbody tr');
                    if (firstRow) {
                        firstRow.classList.add('selected');
                        const cells = firstRow.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '#007bff';
                            cell.style.color = 'white';
                        });
                    }
                }, 100);
            }
        })
        .catch(error => console.error('Error fetching orders:', error))
        .finally(() => {
            button.textContent = 'Check Database';
            button.disabled = false;
        });
});

// Function to update label preview with selected order data
function updateLabelPreview(order) {
    const customerName = order.customer_name || 'N/A';
    document.getElementById('customer-name-row').textContent = customerName;
    
    // Update quantity ordered value
    const quantity = order.cantitate || '0';
    document.getElementById('quantity-ordered-value').textContent = quantity;
    
    // Update client order info (Com.Achiz.Client - Nr. Linie)
    const comAchizClient = order.com_achiz_client || '';
    const nrLinie = order.nr_linie_com_client || '';
    const clientOrderInfo = comAchizClient && nrLinie ? `${comAchizClient}-${nrLinie}` : 'N/A';
    document.getElementById('client-order-info').textContent = clientOrderInfo;
    
    // Update vertical barcode with client order info or default
    const verticalBarcodeData = clientOrderInfo !== 'N/A' ? clientOrderInfo : '000000-00';
    document.getElementById('vertical-barcode-text').textContent = verticalBarcodeData;
    
    // Update delivery date (using data_livrare column)
    const deliveryDate = order.data_livrare ? new Date(order.data_livrare).toLocaleDateString() : 'N/A';
    document.getElementById('delivery-date-value').textContent = deliveryDate;
    
    // Update size (using dimensiune column)
    const size = order.dimensiune || 'N/A';
    document.getElementById('size-value').textContent = size;
    
    // Update description (Descr. Com. Prod)
    const description = order.descr_com_prod || 'N/A';
    document.getElementById('description-value').textContent = description;
    
    // Update article code (using customer_article_number column)
    const articleCode = order.customer_article_number || 'N/A';
    document.getElementById('article-code-value').textContent = articleCode;
    
    // Update prod order (comanda_productie - cantitate)
    const comandaProductie = order.comanda_productie || '';
    const cantitate = order.cantitate || '';
    const prodOrder = comandaProductie && cantitate ? `${comandaProductie}-${cantitate}` : 'N/A';
    document.getElementById('prod-order-value').textContent = prodOrder;
    
    // Update barcode with the same prod order data
    document.getElementById('barcode-text').textContent = prodOrder;
}

// PDF Generation System - No printer setup needed
// Labels are generated as PDF files for universal compatibility
function addPDFGenerationHandler() {
    const printButton = document.getElementById('print-label-btn');
    
    if (printButton) {
        // Update button text and appearance for PDF generation
        printButton.innerHTML = '📄 Generate PDF Labels';
        printButton.title = 'Generate PDF with multiple labels based on quantity';
        
        printButton.addEventListener('click', function(e) {
            e.preventDefault();
            
            // Get selected order
            const selectedRow = document.querySelector('.print-module-table tbody tr.selected');
            if (!selectedRow) {
                alert('Please select an order first from the table below.');
                return;
            }
            
            const orderId = selectedRow.dataset.orderId;
            const quantityCell = selectedRow.querySelector('td:nth-child(5)'); // Cantitate column
            const quantity = quantityCell ? parseInt(quantityCell.textContent) : 1;
            const prodOrderCell = selectedRow.querySelector('td:nth-child(2)'); // Comanda Productie column
            const prodOrder = prodOrderCell ? prodOrderCell.textContent.trim() : 'N/A';
            
            if (!orderId) {
                alert('Could not determine order ID. Please refresh and try again.');
                return;
            }
            
            // Show loading state
            const originalText = this.textContent;
            this.textContent = 'Generating PDF...';
            this.disabled = true;
            
            console.log(`Generating PDF for order ${orderId} with ${quantity} labels`);
            
            // Always use paper-saving mode (optimized for thermal label printers)
            const paperSavingMode = 'true';
            
            console.log(`Using paper-saving mode for optimal label printing`);
            
            // Generate PDF with paper-saving mode enabled
            fetch(`/generate_labels_pdf/${orderId}/${paperSavingMode}`, {
                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 => {
                // Create blob URL for PDF
                const url = window.URL.createObjectURL(blob);
                
                // Create download link for PDF
                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);
                
                // Also open PDF in new tab for printing
                const printWindow = window.open(url, '_blank');
                if (printWindow) {
                    printWindow.focus();
                    
                    // Wait for PDF to load, then show print dialog and cleanup
                    setTimeout(() => {
                        printWindow.print();
                        
                        // Clean up blob URL after print dialog is shown
                        setTimeout(() => {
                            window.URL.revokeObjectURL(url);
                        }, 2000);
                    }, 1500);
                } else {
                    // If popup was blocked, clean up immediately
                    setTimeout(() => {
                        window.URL.revokeObjectURL(url);
                    }, 1000);
                }
                
                // Show success message
                alert(`✅ PDF generated successfully!\n📊 Order: ${prodOrder}\n📦 Labels: ${quantity} pieces\n\nThe PDF has been downloaded and opened for printing.\n\n📋 The order has been marked as printed and removed from the unprinted orders list.`);
                
                // Refresh the orders table to reflect printed status
                // This will automatically hide the printed order from the unprinted orders list
                setTimeout(() => {
                    refreshUnprintedOrdersTable();
                }, 1000);
            })
            .catch(error => {
                console.error('Error generating PDF:', error);
                alert('❌ Failed to generate PDF labels. Error: ' + error.message);
            })
            .finally(() => {
                // Reset button state
                this.textContent = originalText;
                this.disabled = false;
            });
        });
    }
}

// Function to refresh the unprinted orders table
function refreshUnprintedOrdersTable() {
    console.log('Refreshing unprinted orders table...');
    const button = document.getElementById('check-db-btn');
    
    // Show refreshing state
    const originalText = button.textContent;
    button.textContent = 'Refreshing...';
    button.disabled = true;
    
    fetch('/get_unprinted_orders')
        .then(response => {
            if (response.status === 403) {
                return response.json().then(errorData => {
                    throw new Error(`Access Denied: ${errorData.error}`);
                });
            } else if (!response.ok) {
                return response.text().then(text => {
                    throw new Error(`HTTP ${response.status}: ${text}`);
                });
            }
            return response.json();
        })
        .then(data => {
            console.log('Refreshed data:', data);
            const tbody = document.getElementById('unprinted-orders-table');
            tbody.innerHTML = '';
            
            if (data.length === 0) {
                // No unprinted orders left
                tbody.innerHTML = '<tr><td colspan="15" style="text-align: center; padding: 20px; color: #28a745;"><strong>✅ All orders have been printed!</strong><br><small>No unprinted orders remaining.</small></td></tr>';
                
                // Clear label preview
                clearLabelPreview();
            } else {
                // Populate table with remaining unprinted orders
                data.forEach((order, index) => {
                    const tr = document.createElement('tr');
                    tr.dataset.orderId = order.id;
                    tr.dataset.orderIndex = index;
                    tr.style.cursor = 'pointer';
                    tr.innerHTML = `
                        <td style="font-size: 9px;">${order.id}</td>
                        <td style="font-size: 9px;"><strong>${order.comanda_productie}</strong></td>
                        <td style="font-size: 9px;">${order.cod_articol || '-'}</td>
                        <td style="font-size: 9px;">${order.descr_com_prod}</td>
                        <td style="text-align: right; font-weight: 600; font-size: 9px;">${order.cantitate}</td>
                        <td style="text-align: center; font-size: 9px;">
                            ${order.data_livrare ? new Date(order.data_livrare).toLocaleDateString() : '-'}
                        </td>
                        <td style="text-align: center; font-size: 9px;">${order.dimensiune || '-'}</td>
                        <td style="font-size: 9px;">${order.com_achiz_client || '-'}</td>
                        <td style="text-align: right; font-size: 9px;">${order.nr_linie_com_client || '-'}</td>
                        <td style="font-size: 9px;">${order.customer_name || '-'}</td>
                        <td style="font-size: 9px;">${order.customer_article_number || '-'}</td>
                        <td style="font-size: 9px;">${order.open_for_order || '-'}</td>
                        <td style="text-align: right; font-size: 9px;">${order.line_number || '-'}</td>
                        <td style="text-align: center; font-size: 9px;">
                            ${order.printed_labels == 1 ? 
                                '<span style="color: #28a745; font-weight: bold;">✓ Yes</span>' : 
                                '<span style="color: #dc3545;">✗ No</span>'}
                        </td>
                        <td style="font-size: 9px; color: #6c757d;">
                            ${order.created_at ? new Date(order.created_at).toLocaleString() : '-'}
                        </td>
                    `;
                    
                    // Add click event for row selection
                    tr.addEventListener('click', function() {
                        console.log('Row clicked:', order.id);
                        
                        // Remove selection from other rows
                        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 = '';
                            });
                        });
                        
                        // Select this row
                        this.classList.add('selected');
                        
                        // Force visual selection with inline styles
                        const cells = this.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '#007bff';
                            cell.style.color = 'white';
                        });
                        
                        // Update label preview with selected order data
                        updateLabelPreview(order);
                    });
                    
                    tbody.appendChild(tr);
                });
                
                // Auto-select first row
                setTimeout(() => {
                    const firstRow = document.querySelector('.print-module-table tbody tr');
                    if (firstRow && !firstRow.querySelector('td[colspan]')) { // Don't select if it's the "no data" row
                        firstRow.classList.add('selected');
                        const cells = firstRow.querySelectorAll('td');
                        cells.forEach(cell => {
                            cell.style.backgroundColor = '#007bff';
                            cell.style.color = 'white';
                        });
                        updateLabelPreview(data[0]);
                    }
                }, 100);
            }
        })
        .catch(error => {
            console.error('Error refreshing orders:', error);
            const tbody = document.getElementById('unprinted-orders-table');
            tbody.innerHTML = '<tr><td colspan="15" style="text-align: center; padding: 20px; color: #dc3545;"><strong>❌ Failed to refresh data</strong><br><small>' + error.message + '</small></td></tr>';
        })
        .finally(() => {
            button.textContent = originalText;
            button.disabled = false;
        });
}

// Function to clear label preview when no orders are available
function clearLabelPreview() {
    document.getElementById('customer-name-row').textContent = 'No orders available';
    document.getElementById('quantity-ordered-value').textContent = '0';
    document.getElementById('client-order-info').textContent = 'N/A';
    document.getElementById('delivery-date-value').textContent = 'N/A';
    document.getElementById('size-value').textContent = 'N/A';
    document.getElementById('description-value').textContent = 'N/A';
    document.getElementById('article-code-value').textContent = 'N/A';
    document.getElementById('prod-order-value').textContent = 'N/A';
    document.getElementById('barcode-text').textContent = 'N/A';
    document.getElementById('vertical-barcode-text').textContent = '000000-00';
}

document.getElementById('print-label-btn').addEventListener('click', function() {
    console.log('Generate PDF logic here');
});
</script>
{% endblock %}