adding backup/restore

core/migrations/0035_remove_heldsale_customer_remove_heldsale_notes_and_more.py

@@ -0,0 +1,50 @@
+# Generated by Django 5.2.7 on 2026-02-11 08:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0034_systemsetting_favicon'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='heldsale',
+            name='customer',
+        ),
+        migrations.RemoveField(
+            model_name='heldsale',
+            name='notes',
+        ),
+        migrations.RemoveField(
+            model_name='heldsale',
+            name='total_amount',
+        ),
+        migrations.AddField(
+            model_name='heldsale',
+            name='customer_name',
+            field=models.CharField(blank=True, max_length=200, verbose_name='Customer Name'),
+        ),
+        migrations.AddField(
+            model_name='heldsale',
+            name='note',
+            field=models.TextField(blank=True, verbose_name='Note'),
+        ),
+        migrations.AlterField(
+            model_name='customer',
+            name='phone',
+            field=models.CharField(blank=True, default='968', max_length=20, verbose_name='Phone'),
+        ),
+        migrations.AlterField(
+            model_name='heldsale',
+            name='cart_data',
+            field=models.TextField(verbose_name='Cart Data'),
+        ),
+        migrations.AlterField(
+            model_name='supplier',
+            name='phone',
+            field=models.CharField(blank=True, default='968', max_length=20, verbose_name='Phone'),
+        ),
+    ]

core/models.py

@@ -61,7 +61,7 @@ class LoyaltyTier(models.Model):
 
 class Customer(models.Model):
     name = models.CharField(_("Name"), max_length=200)
-    phone = models.CharField(_("Phone"), max_length=20, blank=True)
+    phone = models.CharField(_("Phone"), max_length=20, blank=True, default='968')
     email = models.EmailField(_("Email"), blank=True)
     address = models.TextField(_("Address"), blank=True)
     loyalty_points = models.DecimalField(_("Loyalty Points"), max_digits=15, decimal_places=2, default=0)
@@ -96,7 +96,7 @@ class LoyaltyTransaction(models.Model):
 class Supplier(models.Model):
     name = models.CharField(_("Name"), max_length=200)
     contact_person = models.CharField(_("Contact Person"), max_length=200, blank=True)
-    phone = models.CharField(_("Phone"), max_length=20, blank=True)
+    phone = models.CharField(_("Phone"), max_length=20, blank=True, default='968')
     # created_at = models.DateTimeField(auto_now_add=True) <-- Removed to fix DB mismatch
 
     def __str__(self):

core/templates/core/index.html

@@ -12,9 +12,6 @@
             <p class="text-muted small mb-0">{% trans "Welcome back! Here's what's happening with your business today." %}</p>
         </div>
         <div class="col-auto">
-            <a href="{% url 'fix_db' %}" class="btn btn-warning shadow-sm me-2" target="_blank">
-                <i class="bi bi-tools me-2"></i> {% trans "Fix Database" %}
-            </a>
             <a href="{% url 'invoice_create' %}" class="btn btn-primary shadow-sm">
                 <i class="bi bi-plus-lg me-2"></i> {% trans "New Sale" %}
             </a>

core/templates/core/invoice_detail.html

@@ -21,7 +21,7 @@
                 </button>
             </div>
             {% endif %}
-            <button onclick="downloadPDF()" class="btn btn-outline-primary rounded-3 px-4">
+            <button onclick="location.href='{% url 'download_invoice_pdf' sale.id %}'" class="btn btn-outline-primary rounded-3 px-4">
                 <i class="bi bi-file-earmark-pdf me-2"></i>{% trans "Download PDF" %} / تحميل PDF
             </button>
             <button onclick="window.print()" class="btn btn-primary rounded-3 px-4 shadow-sm">
@@ -248,59 +248,7 @@
     </div>
 </div>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
 <script>
-function getCompactStyle() {
-    const style = document.createElement('style');
-    style.id = 'temp-pdf-style';
-    style.textContent = `
-        /* Cairo loaded in base.html */
-        #invoice-card {
-            font-family: 'Cairo', sans-serif !important;
-            padding: 20px !important;
-            direction: rtl;
-        }
-        #invoice-card * {
-            font-family: 'Cairo', sans-serif !important;
-        }
-        
-        /* Compact overrides */
-        .p-5 { padding: 10px !important; }
-        .mb-5 { margin-bottom: 10px !important; }
-        .mx-5 { margin-left: 0 !important; margin-right: 0 !important; }
-        .h1, h1 { font-size: 22px !important; margin-bottom: 5px !important; }
-        .h3, h3 { font-size: 18px !important; }
-        .h5, h5 { font-size: 14px !important; }
-        .table th, .table td { padding: 4px 8px !important; font-size: 11px !important; }
-        .small { font-size: 10px !important; }
-        img { max-height: 50px !important; margin-bottom: 10px !important; }
-        .badge { padding: 2px 8px !important; font-size: 10px !important; }
-    `;
-    return style;
-}
-
-async function downloadPDF() {
-    const element = document.getElementById('invoice-card');
-    const style = getCompactStyle();
-    document.head.appendChild(style);
-    
-    // Wait for fonts
-    await document.fonts.ready;
-    await new Promise(resolve => setTimeout(resolve, 500));
-
-    const opt = {
-        margin:       [10, 10, 10, 10],
-        filename:     'Invoice_{{ sale.invoice_number|default:sale.id }}.pdf',
-        image:        { type: 'jpeg', quality: 0.98 },
-        html2canvas:  { scale: 2, useCORS: true, letterRendering: false },
-        jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-    };
-    
-    html2pdf().set(opt).from(element).save().then(() => {
-        style.remove();
-    });
-}
-
 async function sendWhatsAppDirect() {
     const phone = document.getElementById('whatsappPhoneDirect').value;
     const spinner = document.getElementById('whatsappSpinnerDirect');
@@ -314,26 +262,7 @@ async function sendWhatsAppDirect() {
     spinner.classList.remove('d-none');
     btn.disabled = true;
 
-    const element = document.getElementById('invoice-card');
-    const style = getCompactStyle();
-    document.head.appendChild(style);
-    
-    // Wait for fonts
-    await document.fonts.ready;
-    await new Promise(resolve => setTimeout(resolve, 500));
-
     try {
-        const opt = {
-            margin:       [10, 10, 10, 10],
-            filename:     'Invoice_{{ sale.invoice_number|default:sale.id }}.pdf',
-            image:        { type: 'jpeg', quality: 0.98 },
-            html2canvas:  { scale: 2, useCORS: true, letterRendering: false },
-            jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-        };
-        
-        // Generate PDF as base64
-        const pdfBlob = await html2pdf().set(opt).from(element).outputPdf('datauristring');
-        
         const response = await fetch("{% url 'send_invoice_whatsapp' %}", {
             method: 'POST',
             headers: {
@@ -342,8 +271,7 @@ async function sendWhatsAppDirect() {
             },
             body: JSON.stringify({
                 sale_id: {{ sale.id }},
-                phone: phone,
-                pdf_data: pdfBlob
+                phone: phone
             })
         });
 
@@ -360,10 +288,10 @@ async function sendWhatsAppDirect() {
     } finally {
         spinner.classList.add('d-none');
         btn.disabled = false;
-        style.remove();
     }
 }
 
+
 <style>
 @media print {
     @page { 

core/templates/core/invoices.html

@@ -240,7 +240,6 @@
     </div>
 </div>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
 <script>
 function openWhatsAppModal(saleId, phone, invoiceNum) {
     document.getElementById('waSaleId').value = saleId;
@@ -263,93 +262,8 @@ async function sendWhatsAppFromList() {
     btn.disabled = true;
     spinner.classList.remove('d-none');
     
-    // Create a temporary container for the invoice
-    const tempContainer = document.createElement('div');
-    tempContainer.style.position = 'absolute';
-    tempContainer.style.left = '-9999px';
-    tempContainer.style.top = '0';
-    tempContainer.style.width = '790px'; // Slightly less than A4 width to prevent overflow
-    document.body.appendChild(tempContainer);
-
     try {
-        // 1. Fetch the invoice detail page
-        const invoiceResponse = await fetch(`/invoices/${saleId}/`);
-        const invoiceHtml = await invoiceResponse.text();
-        
-        // 2. Parse and extract the invoice card and styles
-        const parser = new DOMParser();
-        const doc = parser.parseFromString(invoiceHtml, 'text/html');
-        const invoiceCard = doc.getElementById('invoice-card');
-        const styles = doc.querySelectorAll('style');
-        
-        if (!invoiceCard) {
-            throw new Error("Could not load invoice template");
-        }
-        
-        // Append styles to head temporarily
-        const addedStyles = [];
-        
-        // Force Cairo Font for Arabic support AND compact styles for single page
-        const customStyle = document.createElement('style');
-        customStyle.textContent = `
-            /* Cairo is already loaded in base.html, just apply it */
-            #invoice-card {
-                font-family: 'Cairo', sans-serif !important;
-                padding: 20px !important;
-                background: white !important;
-                direction: rtl; /* Force RTL for better Arabic support in canvas */
-            }
-            #invoice-card * {
-                font-family: 'Cairo', sans-serif !important;
-            }
-            
-            /* Compact overrides */
-            .p-5 { padding: 10px !important; }
-            .mb-5 { margin-bottom: 10px !important; }
-            .mx-5 { margin-left: 0 !important; margin-right: 0 !important; }
-            .h1, h1 { font-size: 22px !important; margin-bottom: 5px !important; }
-            .h3, h3 { font-size: 18px !important; }
-            .h5, h5 { font-size: 14px !important; }
-            .table td, .table th { padding: 4px 8px !important; font-size: 11px !important; }
-            .small { font-size: 10px !important; }
-            img { max-height: 50px !important; margin-bottom: 10px !important; }
-            .badge { padding: 2px 8px !important; font-size: 10px !important; }
-        `;
-        document.head.appendChild(customStyle);
-        addedStyles.push(customStyle);
-
-        styles.forEach(style => {
-            const newStyle = document.createElement('style');
-            newStyle.textContent = style.textContent;
-            document.head.appendChild(newStyle);
-            addedStyles.push(newStyle);
-        });
-        
-        // Clean up for PDF (remove buttons/non-printable if any leaked)
-        const noPrint = invoiceCard.querySelectorAll('.d-print-none');
-        noPrint.forEach(el => el.remove());
-        
-        tempContainer.appendChild(invoiceCard);
-        
-        // Wait for fonts and layout
-        await document.fonts.ready;
-        await new Promise(resolve => setTimeout(resolve, 800)); // Give browser time to render ligatures
-        
-        // 3. Generate PDF
-        const opt = {
-            margin:       [10, 10, 10, 10], // Top, Left, Bottom, Right margins in mm
-            filename:     `Invoice_${saleId}.pdf`,
-            image:        { type: 'jpeg', quality: 0.98 },
-            html2canvas:  { scale: 2, useCORS: true, letterRendering: false }, // letterRendering: false fixes Arabic
-            jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-        };
-        
-        const pdfBlob = await html2pdf().set(opt).from(invoiceCard).outputPdf('datauristring');
-        
-        // Remove temporary styles
-        addedStyles.forEach(style => style.remove());
-        
-        // 4. Send to Backend
+        // Call Backend API to generate and send PDF
         const response = await fetch("{% url 'send_invoice_whatsapp' %}", {
             method: 'POST',
             headers: {
@@ -358,8 +272,7 @@ async function sendWhatsAppFromList() {
             },
             body: JSON.stringify({ 
                 sale_id: saleId, 
-                phone: phone,
-                pdf_data: pdfBlob
+                phone: phone
             })
         });
         
@@ -376,12 +289,11 @@ async function sendWhatsAppFromList() {
             alert('{% trans "WhatsApp Error:" %} ' + data.error + '\n\n{% trans "Please check your System Settings > WhatsApp Gateway configuration." %}');
         }
     } catch (e) {
-        alert("{% trans 'An error occurred while generating or sending the invoice.' %}");
+        alert("{% trans 'An error occurred while sending the invoice.' %}");
         console.error(e);
     } finally {
         btn.disabled = false;
         spinner.classList.add('d-none');
-        document.body.removeChild(tempContainer);
     }
 }
 </script>

core/templates/core/lpo_detail.html

@@ -19,7 +19,7 @@
                 </button>
             </form>
             {% endif %}
-            <button onclick="downloadPDF()" class="btn btn-outline-primary rounded-3 px-4">
+            <button onclick="location.href='{% url 'download_lpo_pdf' order.id %}'" class="btn btn-outline-primary rounded-3 px-4">
                 <i class="bi bi-file-earmark-pdf me-2"></i>{% trans "Download PDF" %} / تحميل PDF
             </button>
             <button onclick="window.print()" class="btn btn-primary rounded-3 px-4 shadow-sm">
@@ -167,58 +167,6 @@
     </div>
 </div>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
-<script>
-function getCompactStyle() {
-    const style = document.createElement('style');
-    style.id = 'temp-pdf-style';
-    style.textContent = `
-        /* Cairo loaded in base.html */
-        #order-card {
-            font-family: 'Cairo', sans-serif !important;
-            padding: 20px !important;
-            direction: rtl;
-        }
-        #order-card * {
-            font-family: 'Cairo', sans-serif !important;
-        }
-        
-        /* Compact overrides */
-        .p-5 { padding: 10px !important; }
-        .mb-5 { margin-bottom: 10px !important; }
-        .mx-5 { margin-left: 0 !important; margin-right: 0 !important; }
-        .h1, h1 { font-size: 22px !important; margin-bottom: 5px !important; }
-        .h3, h3 { font-size: 18px !important; }
-        .h5, h5 { font-size: 14px !important; }
-        .table th, .table td { padding: 4px 8px !important; font-size: 11px !important; }
-        .small { font-size: 10px !important; }
-        img { max-height: 50px !important; margin-bottom: 10px !important; }
-        .badge { padding: 2px 8px !important; font-size: 10px !important; }
-    `;
-    return style;
-}
-
-async function downloadPDF() {
-    const element = document.getElementById('order-card');
-    const style = getCompactStyle();
-    document.head.appendChild(style);
-
-    // Wait for fonts
-    await document.fonts.ready;
-    await new Promise(resolve => setTimeout(resolve, 500));
-
-    const opt = {
-        margin:       [10, 10, 10, 10],
-        filename:     'LPO_{{ order.lpo_number|default:order.id }}.pdf',
-        image:        { type: 'jpeg', quality: 0.98 },
-        html2canvas:  { scale: 2, useCORS: true, letterRendering: false },
-        jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-    };
-    html2pdf().set(opt).from(element).save().then(() => {
-        style.remove();
-    });
-}
-</script>
 
 <style>
 @media print {

core/templates/core/lpo_list.html

@@ -160,7 +160,6 @@
     </div>
 </div>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
 <script>
 function openWhatsAppModal(lpoId, phone, lpoNum) {
     document.getElementById('waLpoId').value = lpoId;
@@ -183,93 +182,8 @@ async function sendWhatsAppFromList() {
     btn.disabled = true;
     spinner.classList.remove('d-none');
     
-    // Create a temporary container
-    const tempContainer = document.createElement('div');
-    tempContainer.style.position = 'absolute';
-    tempContainer.style.left = '-9999px';
-    tempContainer.style.top = '0';
-    tempContainer.style.width = '790px'; // Compact width
-    document.body.appendChild(tempContainer);
-
     try {
-        // 1. Fetch detail page
-        const response = await fetch(`/lpo/${lpoId}/`);
-        const html = await response.text();
-        
-        // 2. Parse
-        const parser = new DOMParser();
-        const doc = parser.parseFromString(html, 'text/html');
-        const card = doc.getElementById('order-card'); // ID in lpo_detail.html
-        const styles = doc.querySelectorAll('style');
-        
-        if (!card) {
-            throw new Error("Could not load LPO template");
-        }
-        
-        // Append styles
-        const addedStyles = [];
-        
-        // Force Cairo Font and Compact Styles
-        const customStyle = document.createElement('style');
-        customStyle.textContent = `
-            /* Cairo loaded in base.html */
-            #order-card {
-                font-family: 'Cairo', sans-serif !important;
-                padding: 20px !important;
-                background: white !important;
-                direction: rtl;
-            }
-            #order-card * {
-                font-family: 'Cairo', sans-serif !important;
-            }
-            
-             /* Compact overrides */
-            .p-5 { padding: 10px !important; }
-            .mb-5 { margin-bottom: 10px !important; }
-            .mx-5 { margin-left: 0 !important; margin-right: 0 !important; }
-            .h1, h1 { font-size: 22px !important; margin-bottom: 5px !important; }
-            .h3, h3 { font-size: 18px !important; }
-            .h5, h5 { font-size: 14px !important; }
-            .table td, .table th { padding: 4px 8px !important; font-size: 11px !important; }
-            .small { font-size: 10px !important; }
-            img { max-height: 50px !important; margin-bottom: 10px !important; }
-            .badge { padding: 2px 8px !important; font-size: 10px !important; }
-        `;
-        document.head.appendChild(customStyle);
-        addedStyles.push(customStyle);
-        
-        styles.forEach(style => {
-            const newStyle = document.createElement('style');
-            newStyle.textContent = style.textContent;
-            document.head.appendChild(newStyle);
-            addedStyles.push(newStyle);
-        });
-        
-        // Clean up
-        const noPrint = card.querySelectorAll('.d-print-none');
-        noPrint.forEach(el => el.remove());
-        
-        tempContainer.appendChild(card);
-        
-        // Wait for fonts and layout
-        await document.fonts.ready;
-        await new Promise(resolve => setTimeout(resolve, 800));
-
-        // 3. Generate PDF
-        const opt = {
-            margin:       [10, 10, 10, 10],
-            filename:     `LPO_${lpoId}.pdf`,
-            image:        { type: 'jpeg', quality: 0.98 },
-            html2canvas:  { scale: 2, useCORS: true, letterRendering: false },
-            jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-        };
-        
-        const pdfBlob = await html2pdf().set(opt).from(card).outputPdf('datauristring');
-        
-        // Remove styles
-        addedStyles.forEach(style => style.remove());
-        
-        // 4. Send to Backend
+        // Call Backend API to generate and send PDF
         const apiResponse = await fetch("{% url 'send_lpo_whatsapp' %}", {
             method: 'POST',
             headers: {
@@ -278,8 +192,7 @@ async function sendWhatsAppFromList() {
             },
             body: JSON.stringify({ 
                 lpo_id: lpoId, 
-                phone: phone,
-                pdf_data: pdfBlob
+                phone: phone
             })
         });
         
@@ -292,16 +205,17 @@ async function sendWhatsAppFromList() {
             if (modalInstance) {
                 modalInstance.hide();
             }
+            // Reload to update status if needed
+            window.location.reload();
         } else {
             alert('{% trans "WhatsApp Error:" %} ' + data.error + '\n\n{% trans "Please check your System Settings > WhatsApp Gateway configuration." %}');
         }
     } catch (e) {
-        alert("{% trans 'An error occurred while generating or sending the LPO.' %}");
+        alert("{% trans 'An error occurred while sending the LPO.' %}");
         console.error(e);
     } finally {
         btn.disabled = false;
         spinner.classList.add('d-none');
-        document.body.removeChild(tempContainer);
     }
 }
 </script>

core/templates/core/quotation_detail.html

@@ -16,7 +16,7 @@
                 <i class="bi bi-arrow-right-circle me-2"></i>{% trans "Convert to Invoice" %} / تحويل إلى فاتورة
             </button>
             {% endif %}
-            <button onclick="downloadPDF()" class="btn btn-outline-primary rounded-3 px-4">
+            <button onclick="location.href='{% url 'download_quotation_pdf' quotation.id %}'" class="btn btn-outline-primary rounded-3 px-4">
                 <i class="bi bi-file-earmark-pdf me-2"></i>{% trans "Download PDF" %} / تحميل PDF
             </button>
             <button onclick="window.print()" class="btn btn-primary rounded-3 px-4 shadow-sm">
@@ -211,59 +211,6 @@
     </div>
 </div>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
-<script>
-function getCompactStyle() {
-    const style = document.createElement('style');
-    style.id = 'temp-pdf-style';
-    style.textContent = `
-        /* Cairo loaded in base.html */
-        #quotation-card {
-            font-family: 'Cairo', sans-serif !important;
-            padding: 20px !important;
-            direction: rtl;
-        }
-        #quotation-card * {
-            font-family: 'Cairo', sans-serif !important;
-        }
-        
-        /* Compact overrides */
-        .p-5 { padding: 10px !important; }
-        .mb-5 { margin-bottom: 10px !important; }
-        .mx-5 { margin-left: 0 !important; margin-right: 0 !important; }
-        .h1, h1 { font-size: 22px !important; margin-bottom: 5px !important; }
-        .h3, h3 { font-size: 18px !important; }
-        .h5, h5 { font-size: 14px !important; }
-        .table th, .table td { padding: 4px 8px !important; font-size: 11px !important; }
-        .small { font-size: 10px !important; }
-        img { max-height: 50px !important; margin-bottom: 10px !important; }
-        .badge { padding: 2px 8px !important; font-size: 10px !important; }
-    `;
-    return style;
-}
-
-async function downloadPDF() {
-    const element = document.getElementById('quotation-card');
-    const style = getCompactStyle();
-    document.head.appendChild(style);
-
-    // Wait for fonts
-    await document.fonts.ready;
-    await new Promise(resolve => setTimeout(resolve, 500));
-
-    const opt = {
-        margin:       [10, 10, 10, 10],
-        filename:     'Quotation_{{ quotation.quotation_number|default:quotation.id }}.pdf',
-        image:        { type: 'jpeg', quality: 0.98 },
-        html2canvas:  { scale: 2, useCORS: true, letterRendering: false },
-        jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-    };
-    
-    html2pdf().set(opt).from(element).save().then(() => {
-        style.remove();
-    });
-}
-</script>
 
 <style>
 @media print {

core/templates/core/quotations.html

@@ -175,7 +175,6 @@
     </div>
 </div>
 
-<script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.10.1/html2pdf.bundle.min.js"></script>
 <script>
 function openWhatsAppModal(quotationId, phone, quotationNum) {
     document.getElementById('waQuotationId').value = quotationId;
@@ -198,93 +197,8 @@ async function sendWhatsAppFromList() {
     btn.disabled = true;
     spinner.classList.remove('d-none');
     
-    // Create a temporary container for the quotation
-    const tempContainer = document.createElement('div');
-    tempContainer.style.position = 'absolute';
-    tempContainer.style.left = '-9999px';
-    tempContainer.style.top = '0';
-    tempContainer.style.width = '790px'; // Slightly less than A4
-    document.body.appendChild(tempContainer);
-
     try {
-        // 1. Fetch the quotation detail page
-        const quotationResponse = await fetch(`/quotations/${quotationId}/`);
-        const quotationHtml = await quotationResponse.text();
-        
-        // 2. Parse and extract the quotation card and styles
-        const parser = new DOMParser();
-        const doc = parser.parseFromString(quotationHtml, 'text/html');
-        const quotationCard = doc.getElementById('quotation-card');
-        const styles = doc.querySelectorAll('style');
-        
-        if (!quotationCard) {
-            throw new Error("Could not load quotation template");
-        }
-        
-        // Append styles to head temporarily
-        const addedStyles = [];
-        
-        // Force Cairo Font and Compact Styles
-        const customStyle = document.createElement('style');
-        customStyle.textContent = `
-            /* Cairo loaded in base.html */
-            #quotation-card {
-                font-family: 'Cairo', sans-serif !important;
-                padding: 20px !important;
-                background: white !important;
-                direction: rtl;
-            }
-            #quotation-card * {
-                font-family: 'Cairo', sans-serif !important;
-            }
-            
-             /* Compact overrides */
-            .p-5 { padding: 10px !important; }
-            .mb-5 { margin-bottom: 10px !important; }
-            .mx-5 { margin-left: 0 !important; margin-right: 0 !important; }
-            .h1, h1 { font-size: 22px !important; margin-bottom: 5px !important; }
-            .h3, h3 { font-size: 18px !important; }
-            .h5, h5 { font-size: 14px !important; }
-            .table td, .table th { padding: 4px 8px !important; font-size: 11px !important; }
-            .small { font-size: 10px !important; }
-            img { max-height: 50px !important; margin-bottom: 10px !important; }
-            .badge { padding: 2px 8px !important; font-size: 10px !important; }
-        `;
-        document.head.appendChild(customStyle);
-        addedStyles.push(customStyle);
-        
-        styles.forEach(style => {
-            const newStyle = document.createElement('style');
-            newStyle.textContent = style.textContent;
-            document.head.appendChild(newStyle);
-            addedStyles.push(newStyle);
-        });
-        
-        // Clean up for PDF (remove buttons/non-printable if any leaked)
-        const noPrint = quotationCard.querySelectorAll('.d-print-none');
-        noPrint.forEach(el => el.remove());
-        
-        tempContainer.appendChild(quotationCard);
-        
-        // Wait for fonts and layout
-        await document.fonts.ready;
-        await new Promise(resolve => setTimeout(resolve, 800));
-
-        // 3. Generate PDF
-        const opt = {
-            margin:       [10, 10, 10, 10],
-            filename:     `Quotation_${quotationId}.pdf`,
-            image:        { type: 'jpeg', quality: 0.98 },
-            html2canvas:  { scale: 2, useCORS: true, letterRendering: false },
-            jsPDF:        { unit: 'mm', format: 'a4', orientation: 'portrait' }
-        };
-        
-        const pdfBlob = await html2pdf().set(opt).from(quotationCard).outputPdf('datauristring');
-        
-        // Remove temporary styles
-        addedStyles.forEach(style => style.remove());
-        
-        // 4. Send to Backend
+        // Call Backend API to generate and send PDF
         const response = await fetch("{% url 'send_quotation_whatsapp' %}", {
             method: 'POST',
             headers: {
@@ -293,8 +207,7 @@ async function sendWhatsAppFromList() {
             },
             body: JSON.stringify({ 
                 quotation_id: quotationId, 
-                phone: phone,
-                pdf_data: pdfBlob
+                phone: phone
             })
         });
         
@@ -311,12 +224,11 @@ async function sendWhatsAppFromList() {
             alert('{% trans "WhatsApp Error:" %} ' + data.error + '\n\n{% trans "Please check your System Settings > WhatsApp Gateway configuration." %}');
         }
     } catch (e) {
-        alert("{% trans 'An error occurred while generating or sending the quotation.' %}");
+        alert("{% trans 'An error occurred while sending the quotation.' %}");
         console.error(e);
     } finally {
         btn.disabled = false;
         spinner.classList.add('d-none');
-        document.body.removeChild(tempContainer);
     }
 }
 </script>

core/templates/core/settings.html

@@ -61,6 +61,11 @@
                 <i class="bi bi-whatsapp me-2"></i>{% trans "WhatsApp Gateway" %}
             </button>
         </li>
+        <li class="nav-item" role="presentation">
+            <button class="nav-link fw-bold px-4" id="database-tab" data-bs-toggle="pill" data-bs-target="#database" type="button" role="tab">
+                <i class="bi bi-database me-2"></i>{% trans "Database" %}
+            </button>
+        </li>
     </ul>
 
     <div class="tab-content" id="settingsTabsContent">
@@ -531,6 +536,48 @@
                 </div>
             </div>
         </div>
+        <!-- Database Tab -->
+        <div class="tab-pane fade" id="database" role="tabpanel">
+            <div class="row">
+                <div class="col-lg-6">
+                    <div class="card shadow-sm border-0 glassmorphism mb-4">
+                        <div class="card-header bg-transparent border-0 py-3">
+                            <h5 class="card-title mb-0 fw-bold">{% trans "Backup Database" %}</h5>
+                        </div>
+                        <div class="card-body">
+                            <p class="text-muted">{% trans "Download a full SQL dump of your database. Keep this file safe." %}</p>
+                            <a href="{% url 'backup_database' %}" class="btn btn-primary w-100">
+                                <i class="bi bi-download me-2"></i> {% trans "Download Backup (.sql)" %}
+                            </a>
+                        </div>
+                    </div>
+                </div>
+                
+                <div class="col-lg-6">
+                    <div class="card shadow-sm border-0 glassmorphism mb-4">
+                        <div class="card-header bg-transparent border-0 py-3">
+                            <h5 class="card-title mb-0 fw-bold text-danger">{% trans "Restore Database" %}</h5>
+                        </div>
+                        <div class="card-body">
+                            <div class="alert alert-warning">
+                                <i class="bi bi-exclamation-triangle-fill me-2"></i>
+                                <strong>{% trans "Warning:" %}</strong> {% trans "Restoring will OVERWRITE all current data. This cannot be undone." %}
+                            </div>
+                            <form action="{% url 'restore_database' %}" method="post" enctype="multipart/form-data" onsubmit="return confirm('{% trans "Are you sure? This will wipe the current database!" %}');">
+                                {% csrf_token %}
+                                <div class="mb-3">
+                                    <label class="form-label">{% trans "Select Backup File (.sql)" %}</label>
+                                    <input type="file" name="backup_file" class="form-control" accept=".sql" required>
+                                </div>
+                                <button type="submit" class="btn btn-danger w-100">
+                                    <i class="bi bi-upload me-2"></i> {% trans "Restore Database" %}
+                                </button>
+                            </form>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
     </div>
 </div>
 

core/templates/pdf/base_pdf.html

@@ -0,0 +1,52 @@
+{% load static %}
+<!DOCTYPE html>
+<html lang="ar" dir="rtl">
+<head>
+    <meta charset="UTF-8">
+    <title>{% block title %}Document{% endblock %}</title>
+    <style>
+        /* Use system fonts that support Arabic */
+        @font-face {
+            font-family: 'Noto Sans Arabic';
+            src: local('Noto Sans Arabic'), local('NotoSansArabic-Regular');
+        }
+        
+        body {
+            font-family: 'Noto Sans Arabic', 'Arial', sans-serif !important;
+            font-size: 12px;
+        }
+        h1, h2, h3, h4, h5, h6 {
+            font-family: 'Noto Sans Arabic', 'Arial', sans-serif !important;
+            font-weight: bold;
+        }
+        @page {
+            size: A4;
+            margin: 1cm;
+            @bottom-center {
+                content: "Page " counter(page) " of " counter(pages);
+                font-family: 'Noto Sans Arabic', 'Arial', sans-serif;
+                font-size: 10px;
+            }
+        }
+        table {
+            width: 100%;
+            table-layout: fixed;
+            word-wrap: break-word;
+        }
+        .badge {
+            color: black !important;
+            border: 1px solid #ccc;
+            background: transparent !important;
+        }
+        /* WeasyPrint specific fixes */
+        img {
+            max-width: 100%;
+        }
+    </style>
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.rtl.min.css">
+    {% block extra_css %}{% endblock %}
+</head>
+<body>
+    {% block content %}{% endblock %}
+</body>
+</html>

core/templates/pdf/invoice_pdf.html

@@ -0,0 +1,108 @@
+{% extends "pdf/base_pdf.html" %}
+{% load i18n %}
+
+{% block title %}{% trans "Invoice" %} #{{ sale.invoice_number|default:sale.id }}{% endblock %}
+
+{% block content %}
+<div class="container-fluid">
+    <div class="row mb-4">
+        <div class="col-6">
+            {% if settings.logo %}
+                <img src="{{ settings.logo.url }}" alt="Logo" style="max-height: 80px;" class="mb-3">
+            {% else %}
+                <h3 class="text-primary fw-bold">{{ settings.business_name }}</h3>
+            {% endif %}
+            <div class="small text-muted">
+                <div>{{ settings.address }}</div>
+                <div>{{ settings.phone }}</div>
+                <div>{{ settings.email }}</div>
+                {% if settings.vat_number %}
+                    <div>{% trans "VAT" %}: {{ settings.vat_number }}</div>
+                {% endif %}
+            </div>
+        </div>
+        <div class="col-6 text-end">
+            <h1 class="text-muted text-uppercase mb-3">{% trans "Tax Invoice" %} / فاتورة ضريبية</h1>
+            <div class="mb-2"><strong>{% trans "Invoice #" %} / رقم الفاتورة:</strong> {{ sale.invoice_number|default:sale.id }}</div>
+            <div class="mb-2"><strong>{% trans "Date" %} / التاريخ:</strong> {{ sale.created_at|date:"Y-m-d H:i" }}</div>
+        </div>
+    </div>
+
+    <div class="row mb-4 border-top border-bottom py-3">
+        <div class="col-6">
+            <h6 class="text-uppercase text-muted fw-bold">{% trans "Bill To" %} / العميل</h6>
+            <h5 class="fw-bold">{{ sale.customer.name|default:"Guest" }}</h5>
+            {% if sale.customer.phone %}<div>{{ sale.customer.phone }}</div>{% endif %}
+            {% if sale.customer.address %}<div>{{ sale.customer.address }}</div>{% endif %}
+        </div>
+        <div class="col-6 text-end">
+            <span class="badge rounded-pill px-3 py-2">{{ sale.get_status_display }}</span>
+        </div>
+    </div>
+
+    <table class="table table-striped table-sm">
+        <thead>
+            <tr class="table-light">
+                <th style="width: 40%">{% trans "Item" %} / الصنف</th>
+                <th class="text-center">{% trans "Price" %} / السعر</th>
+                <th class="text-center">{% trans "Qty" %} / الكمية</th>
+                <th class="text-end">{% trans "Total" %} / المجموع</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for item in sale.items.all %}
+            <tr>
+                <td>
+                    <div class="fw-bold">{{ item.product.name_ar }}</div>
+                    <div class="small text-muted">{{ item.product.name_en }}</div>
+                </td>
+                <td class="text-center">{{ item.unit_price|floatformat:3 }}</td>
+                <td class="text-center">{{ item.quantity|floatformat:2 }}</td>
+                <td class="text-end">{{ item.line_total|floatformat:3 }}</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+        <tfoot>
+            <tr>
+                <td colspan="2"></td>
+                <td class="text-center fw-bold">{% trans "Subtotal" %} / المجموع الفرعي</td>
+                <td class="text-end fw-bold">{{ sale.subtotal|floatformat:3 }}</td>
+            </tr>
+            {% if sale.discount > 0 %}
+            <tr>
+                <td colspan="2"></td>
+                <td class="text-center fw-bold text-danger">{% trans "Discount" %} / الخصم</td>
+                <td class="text-end fw-bold text-danger">-{{ sale.discount|floatformat:3 }}</td>
+            </tr>
+            {% endif %}
+            {% if sale.vat_amount > 0 %}
+            <tr>
+                <td colspan="2"></td>
+                <td class="text-center fw-bold">{% trans "VAT" %} / الضريبة</td>
+                <td class="text-end fw-bold">{{ sale.vat_amount|floatformat:3 }}</td>
+            </tr>
+            {% endif %}
+            <tr class="bg-light">
+                <td colspan="2"></td>
+                <td class="text-center fw-bold h6">{% trans "Total" %} / الإجمالي</td>
+                <td class="text-end fw-bold h6">{{ sale.total_amount|floatformat:3 }} {{ settings.currency_symbol }}</td>
+            </tr>
+             <tr>
+                <td colspan="2"></td>
+                <td class="text-center fw-bold">{% trans "Paid" %} / المدفوع</td>
+                <td class="text-end fw-bold">{{ sale.paid_amount|floatformat:3 }}</td>
+            </tr>
+        </tfoot>
+    </table>
+
+    {% if amount_in_words %}
+    <div class="mb-4 p-2 bg-light rounded border">
+        <strong>{% trans "Amount in Words" %} / المبلغ بالحروف:</strong> {{ amount_in_words }}
+    </div>
+    {% endif %}
+    
+    <div class="text-center text-muted small mt-5 pt-3 border-top">
+        {% trans "Generated by" %} {{ settings.business_name }}
+    </div>
+</div>
+{% endblock %}

core/templates/pdf/lpo_pdf.html

@@ -0,0 +1,88 @@
+{% extends "pdf/base_pdf.html" %}
+{% load i18n %}
+
+{% block title %}{% trans "Purchase Order" %} #{{ lpo.lpo_number|default:lpo.id }}{% endblock %}
+
+{% block content %}
+<div class="container-fluid">
+    <div class="row mb-4">
+        <div class="col-6">
+            {% if settings.logo %}
+                <img src="{{ settings.logo.url }}" alt="Logo" style="max-height: 80px;" class="mb-3">
+            {% else %}
+                <h3 class="text-primary fw-bold">{{ settings.business_name }}</h3>
+            {% endif %}
+            <div class="small text-muted">
+                <div>{{ settings.address }}</div>
+                <div>{{ settings.phone }}</div>
+                <div>{{ settings.email }}</div>
+            </div>
+        </div>
+        <div class="col-6 text-end">
+            <h1 class="text-muted text-uppercase mb-3">{% trans "Purchase Order" %} / طلب شراء</h1>
+            <div class="mb-2"><strong>{% trans "LPO #" %} / رقم الطلب:</strong> {{ lpo.lpo_number|default:lpo.id }}</div>
+            <div class="mb-2"><strong>{% trans "Date" %} / التاريخ:</strong> {{ lpo.created_at|date:"Y-m-d" }}</div>
+            <div class="mb-2"><strong>{% trans "Expected" %} / المتوقع:</strong> {{ lpo.expected_date|date:"Y-m-d"|default:"-" }}</div>
+        </div>
+    </div>
+
+    <div class="row mb-4 border-top border-bottom py-3">
+        <div class="col-6">
+            <h6 class="text-uppercase text-muted fw-bold">{% trans "Vendor" %} / المورد</h6>
+            <h5 class="fw-bold">{{ lpo.supplier.name }}</h5>
+            {% if lpo.supplier.phone %}<div>{{ lpo.supplier.phone }}</div>{% endif %}
+        </div>
+        <div class="col-6 text-end">
+            <span class="badge rounded-pill px-3 py-2">{{ lpo.get_status_display }}</span>
+        </div>
+    </div>
+
+    <table class="table table-striped table-sm">
+        <thead>
+            <tr class="table-light">
+                <th style="width: 40%">{% trans "Item" %} / الصنف</th>
+                <th class="text-center">{% trans "Cost" %} / التكلفة</th>
+                <th class="text-center">{% trans "Qty" %} / الكمية</th>
+                <th class="text-end">{% trans "Total" %} / المجموع</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for item in lpo.items.all %}
+            <tr>
+                <td>
+                    <div class="fw-bold">{{ item.product.name_ar }}</div>
+                    <div class="small text-muted">{{ item.product.name_en }}</div>
+                </td>
+                <td class="text-center">{{ item.cost_price|floatformat:3 }}</td>
+                <td class="text-center">{{ item.quantity|floatformat:2 }}</td>
+                <td class="text-end">{{ item.line_total|floatformat:3 }}</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+        <tfoot>
+            <tr class="bg-light">
+                <td colspan="2"></td>
+                <td class="text-center fw-bold h6">{% trans "Total" %} / الإجمالي</td>
+                <td class="text-end fw-bold h6">{{ lpo.total_amount|floatformat:3 }} {{ settings.currency_symbol }}</td>
+            </tr>
+        </tfoot>
+    </table>
+
+    {% if amount_in_words %}
+    <div class="mb-4 p-2 bg-light rounded border">
+        <strong>{% trans "Amount in Words" %} / المبلغ بالحروف:</strong> {{ amount_in_words }}
+    </div>
+    {% endif %}
+
+    {% if lpo.notes %}
+    <div class="mb-4">
+        <h6 class="text-uppercase text-muted fw-bold">{% trans "Notes" %} / ملاحظات</h6>
+        <div class="small">{{ lpo.notes }}</div>
+    </div>
+    {% endif %}
+
+    <div class="text-center text-muted small mt-5 pt-3 border-top">
+        {% trans "Generated by" %} {{ settings.business_name }}
+    </div>
+</div>
+{% endblock %}

core/templates/pdf/quotation_pdf.html

@@ -0,0 +1,129 @@
+{% extends "pdf/base_pdf.html" %}
+{% load i18n %}
+
+{% block title %}{% trans "Quotation" %} #{{ quotation.quotation_number|default:quotation.id }}{% endblock %}
+
+{% block content %}
+<div class="container-fluid">
+    <!-- Header -->
+    <div class="row mb-4">
+        <!-- Company Info (Right in RTL) -->
+        <div class="col-6">
+            {% if settings.logo %}
+                <img src="{{ settings.logo.url }}" alt="Logo" style="max-height: 80px;" class="mb-3">
+            {% else %}
+                <h3 class="text-primary fw-bold">{{ settings.business_name }}</h3>
+            {% endif %}
+            <div class="small text-muted">
+                <div>{{ settings.address }}</div>
+                <div>{{ settings.phone }}</div>
+                <div>{{ settings.email }}</div>
+                {% if settings.vat_number %}
+                    <div>{% trans "VAT" %}: {{ settings.vat_number }}</div>
+                {% endif %}
+            </div>
+        </div>
+        <!-- Doc Info (Left in RTL) -->
+        <div class="col-6 text-end">
+            <h1 class="text-muted text-uppercase mb-3">{% trans "Quotation" %} / عرض سعر</h1>
+            <div class="mb-2">
+                <strong>{% trans "Quotation #" %} / رقم العرض:</strong> {{ quotation.quotation_number|default:quotation.id }}
+            </div>
+            <div class="mb-2">
+                <strong>{% trans "Date" %} / التاريخ:</strong> {{ quotation.created_at|date:"Y-m-d" }}
+            </div>
+            <div class="mb-2">
+                <strong>{% trans "Valid Until" %} / سارٍ حتى:</strong> {{ quotation.valid_until|date:"Y-m-d"|default:"-" }}
+            </div>
+        </div>
+    </div>
+
+    <!-- Customer & Status -->
+    <div class="row mb-4 border-top border-bottom py-3">
+        <div class="col-6">
+            <h6 class="text-uppercase text-muted fw-bold">{% trans "Bill To" %} / العميل</h6>
+            <h5 class="fw-bold">{{ quotation.customer.name|default:"Guest" }}</h5>
+            {% if quotation.customer.phone %}
+                <div>{{ quotation.customer.phone }}</div>
+            {% endif %}
+            {% if quotation.customer.address %}
+                <div>{{ quotation.customer.address }}</div>
+            {% endif %}
+        </div>
+        <div class="col-6 text-end">
+             <!-- Status badge text -->
+             <span class="badge rounded-pill px-3 py-2">
+                 {% if quotation.status == 'converted' %}{% trans "Converted" %} / محول لفاتورة
+                 {% elif quotation.status == 'accepted' %}{% trans "Accepted" %} / مقبول
+                 {% elif quotation.status == 'rejected' %}{% trans "Rejected" %} / مرفوض
+                 {% else %}{% trans "Open" %} / مفتوح
+                 {% endif %}
+             </span>
+        </div>
+    </div>
+
+    <!-- Table -->
+    <table class="table table-striped table-sm">
+        <thead>
+            <tr class="table-light">
+                <th style="width: 40%">{% trans "Item" %} / الصنف</th>
+                <th class="text-center">{% trans "Price" %} / السعر</th>
+                <th class="text-center">{% trans "Qty" %} / الكمية</th>
+                <th class="text-end">{% trans "Total" %} / المجموع</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for item in quotation.items.all %}
+            <tr>
+                <td>
+                    <div class="fw-bold">{{ item.product.name_ar }}</div>
+                    <div class="small text-muted">{{ item.product.name_en }}</div>
+                </td>
+                <td class="text-center">{{ item.unit_price|floatformat:3 }}</td>
+                <td class="text-center">{{ item.quantity|floatformat:2 }}</td>
+                <td class="text-end">{{ item.line_total|floatformat:3 }}</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+        <tfoot>
+             <tr>
+                <td colspan="2"></td>
+                <td class="text-center fw-bold">{% trans "Subtotal" %} / المجموع الفرعي</td>
+                <td class="text-end fw-bold">{{ quotation.total_amount|add:quotation.discount|floatformat:3 }}</td>
+            </tr>
+            {% if quotation.discount > 0 %}
+            <tr>
+                <td colspan="2"></td>
+                <td class="text-center fw-bold text-danger">{% trans "Discount" %} / الخصم</td>
+                <td class="text-end fw-bold text-danger">-{{ quotation.discount|floatformat:3 }}</td>
+            </tr>
+            {% endif %}
+            <tr class="bg-light">
+                <td colspan="2"></td>
+                <td class="text-center fw-bold h6">{% trans "Total" %} / الإجمالي</td>
+                <td class="text-end fw-bold h6">{{ quotation.total_amount|floatformat:3 }} {{ settings.currency_symbol }}</td>
+            </tr>
+        </tfoot>
+    </table>
+
+    <!-- Amount in Words -->
+    {% if amount_in_words %}
+    <div class="mb-4 p-2 bg-light rounded border">
+        <strong>{% trans "Amount in Words" %} / المبلغ بالحروف:</strong> {{ amount_in_words }}
+    </div>
+    {% endif %}
+
+    <!-- Terms -->
+    {% if quotation.terms_and_conditions %}
+    <div class="mb-4">
+        <h6 class="text-uppercase text-muted fw-bold">{% trans "Terms & Conditions" %} / الشروط والأحكام</h6>
+        <div class="small" style="white-space: pre-line;">{{ quotation.terms_and_conditions }}</div>
+    </div>
+    {% endif %}
+
+    <!-- Footer -->
+    <div class="text-center text-muted small mt-5 pt-3 border-top">
+        {% trans "Generated by" %} {{ settings.business_name }}
+    </div>
+</div>
+{% endblock %}

core/urls.py

@@ -163,4 +163,8 @@ urlpatterns = [
     path('sessions/start/', views.start_session, name='start_session'),
     path('sessions/close/', views.close_session, name='close_session'),
     path('sessions/<int:pk>/', views.session_detail, name='session_detail'),
+    
+    # Database Backup/Restore
+    path('settings/backup/', views.backup_database, name='backup_database'),
+    path('settings/restore/', views.restore_database, name='restore_database'),
 ]

core/views.py

@@ -3,7 +3,8 @@ from django.contrib import messages
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth import update_session_auth_hash
 from django.urls import reverse
-from django.http import JsonResponse, HttpResponse
+from django.http import JsonResponse, HttpResponse, FileResponse
+import subprocess
 from django.core.paginator import Paginator
 from django.db import transaction
 from django.db.models import Sum, Q, Count, F
@@ -36,6 +37,8 @@ from .forms import (
 )
 from .utils import number_to_words_en, send_whatsapp_message, send_whatsapp_document
 from .views_import import *
+from weasyprint import HTML
+from django.template.loader import render_to_string
 
 logger = logging.getLogger(__name__)
 
@@ -1379,22 +1382,56 @@ def test_whatsapp_connection(request):
         logger.error(f"WhatsApp Test Error: {e}")
         return JsonResponse({'success': False, 'error': str(e)})
 
+# --- PDF & WhatsApp Helpers ---
+
+def get_pdf_context(obj, doc_type):
+    settings = SystemSetting.objects.first()
+    if not settings:
+        settings = SystemSetting.objects.create()
+    
+    amount = 0
+    if doc_type == 'quotation':
+        amount = obj.total_amount
+    elif doc_type == 'invoice':
+        amount = obj.total_amount
+    elif doc_type == 'lpo':
+        amount = obj.total_amount
+        
+    return {
+        doc_type: obj,
+        'sale' if doc_type == 'invoice' else doc_type: obj,
+        'settings': settings,
+        'site_settings': settings,
+        'amount_in_words': number_to_words_en(amount)
+    }
+
+def generate_pdf_file(template, context, request):
+    html_string = render_to_string(template, context, request=request)
+    base_url = request.build_absolute_uri('/')
+    return HTML(string=html_string, base_url=base_url).write_pdf()
+
+@login_required
+def download_invoice_pdf(request, pk):
+    sale = get_object_or_404(Sale, pk=pk)
+    context = get_pdf_context(sale, 'invoice')
+    pdf = generate_pdf_file('pdf/invoice_pdf.html', context, request)
+    response = HttpResponse(pdf, content_type='application/pdf')
+    response['Content-Disposition'] = f'attachment; filename="Invoice_{sale.invoice_number or sale.id}.pdf"'
+    return response
+
 @login_required
 def send_invoice_whatsapp(request):
     if request.method != 'POST':
         return JsonResponse({'success': False, 'error': 'Method not allowed'})
     
     try:
-        # Handle JSON payload
+        # Simple JSON handling
         data = json.loads(request.body)
         sale_id = data.get('sale_id')
         phone = data.get('phone')
-        pdf_data = data.get('pdf_data') # Base64 string
     except json.JSONDecodeError:
-        # Fallback to Form Data
         sale_id = request.POST.get('sale_id')
         phone = request.POST.get('phone')
-        pdf_data = None
     
     if not sale_id:
         return JsonResponse({'success': False, 'error': 'Sale ID missing'})
@@ -1408,71 +1445,56 @@ def send_invoice_whatsapp(request):
              return JsonResponse({'success': False, 'error': 'Phone number missing'})
     
     try:
-        # If PDF data is present, save and send document
-        if pdf_data:
-            # Remove header if present (data:application/pdf;base64,)
-            if ',' in pdf_data:
-                pdf_data = pdf_data.split(',')[1]
+        # Generate PDF Server-Side
+        context = get_pdf_context(sale, 'invoice')
+        pdf_bytes = generate_pdf_file('pdf/invoice_pdf.html', context, request)
         
-            file_data = base64.b64decode(pdf_data)
-            dir_path = os.path.join(django_settings.MEDIA_ROOT, 'temp_invoices')
-            os.makedirs(dir_path, exist_ok=True)
+        # Save to temp
+        dir_path = os.path.join(django_settings.MEDIA_ROOT, 'temp_invoices')
+        os.makedirs(dir_path, exist_ok=True)
+        filename = f"invoice_{sale.id}_{int(timezone.now().timestamp())}.pdf"
+        file_path = os.path.join(dir_path, filename)
         
-            filename = f"invoice_{sale.id}_{int(timezone.now().timestamp())}.pdf"
-            file_path = os.path.join(dir_path, filename)
+        with open(file_path, 'wb') as f:
+            f.write(pdf_bytes)
             
-            with open(file_path, 'wb') as f:
-                f.write(file_data)
+        file_url = request.build_absolute_uri(django_settings.MEDIA_URL + 'temp_invoices/' + filename)
         
-            # Construct URL
-            file_url = request.build_absolute_uri(django_settings.MEDIA_URL + 'temp_invoices/' + filename)
-            
-            success, response_msg = send_whatsapp_document(phone, file_url, caption=f"Invoice #{sale.invoice_number or sale.id}")
-            
-        else:
-            # Fallback to Text Link
-            receipt_url = request.build_absolute_uri(reverse('sale_receipt', args=[sale.pk]))
-            
-            message = (
-                f"Hello {sale.customer.name if sale.customer else 'Guest'},\n"
-                f"Here is your invoice #{sale.invoice_number or sale.id}.\n"
-                f"Total: {sale.total_amount}\n"
-                f"View Invoice: {receipt_url}\n"
-                f"Thank you for your business!"
-            )
-            
-            success, response_msg = send_whatsapp_message(phone, message)
+        success, response_msg = send_whatsapp_document(phone, file_url, caption=f"Invoice #{sale.invoice_number or sale.id}")
         
         if success:
              return JsonResponse({'success': True, 'message': response_msg})
         else:
-             # Enhanced Error Handling
              error_msg = str(response_msg)
              if "Access denied" in error_msg and "IP" in error_msg:
                   error_msg += " <br><b>Action Required:</b> Go to Wablas Dashboard > Security and whitelist the IP shown in this error."
-             
              return JsonResponse({'success': False, 'error': error_msg})
              
     except Exception as e:
         logger.error(f"WhatsApp Error: {e}")
         return JsonResponse({'success': False, 'error': str(e)})
 
+@login_required
+def download_quotation_pdf(request, pk):
+    quotation = get_object_or_404(Quotation, pk=pk)
+    context = get_pdf_context(quotation, 'quotation')
+    pdf = generate_pdf_file('pdf/quotation_pdf.html', context, request)
+    response = HttpResponse(pdf, content_type='application/pdf')
+    response['Content-Disposition'] = f'attachment; filename="Quotation_{quotation.quotation_number or quotation.id}.pdf"'
+    return response
+
 @login_required
 def send_quotation_whatsapp(request):
     if request.method != 'POST':
         return JsonResponse({'success': False, 'error': 'Method not allowed'})
     
     try:
-        # Handle JSON payload
         data = json.loads(request.body)
         quotation_id = data.get('quotation_id')
         phone = data.get('phone')
-        pdf_data = data.get('pdf_data') # Base64 string
     except json.JSONDecodeError:
-        # Fallback to Form Data
         quotation_id = request.POST.get('quotation_id')
         phone = request.POST.get('phone')
-        pdf_data = None
     
     if not quotation_id:
         return JsonResponse({'success': False, 'error': 'Quotation ID missing'})
@@ -1486,54 +1508,42 @@ def send_quotation_whatsapp(request):
              return JsonResponse({'success': False, 'error': 'Phone number missing'})
     
     try:
-        # If PDF data is present, save and send document
-        if pdf_data:
-            # Remove header if present (data:application/pdf;base64,)
-            if ',' in pdf_data:
-                pdf_data = pdf_data.split(',')[1]
+        context = get_pdf_context(quotation, 'quotation')
+        pdf_bytes = generate_pdf_file('pdf/quotation_pdf.html', context, request)
         
-            file_data = base64.b64decode(pdf_data)
-            dir_path = os.path.join(django_settings.MEDIA_ROOT, 'temp_quotations')
-            os.makedirs(dir_path, exist_ok=True)
+        dir_path = os.path.join(django_settings.MEDIA_ROOT, 'temp_quotations')
+        os.makedirs(dir_path, exist_ok=True)
+        filename = f"quotation_{quotation.id}_{int(timezone.now().timestamp())}.pdf"
+        file_path = os.path.join(dir_path, filename)
         
-            filename = f"quotation_{quotation.id}_{int(timezone.now().timestamp())}.pdf"
-            file_path = os.path.join(dir_path, filename)
+        with open(file_path, 'wb') as f:
+            f.write(pdf_bytes)
             
-            with open(file_path, 'wb') as f:
-                f.write(file_data)
+        file_url = request.build_absolute_uri(django_settings.MEDIA_URL + 'temp_quotations/' + filename)
         
-            # Construct URL
-            file_url = request.build_absolute_uri(django_settings.MEDIA_URL + 'temp_quotations/' + filename)
-            
-            success, response_msg = send_whatsapp_document(phone, file_url, caption=f"Quotation #{quotation.quotation_number or quotation.id}")
-            
-        else:
-            # Fallback to Text Link
-            # Note: You might need a public view for quotation if you want to send a link
-            # For now, we assume PDF is the primary method
-            message = (
-                f"Hello {quotation.customer.name if quotation.customer else 'Guest'},\n"
-                f"Here is your quotation #{quotation.quotation_number or quotation.id}.\n"
-                f"Total: {quotation.total_amount}\n"
-                f"Thank you!"
-            )
-            
-            success, response_msg = send_whatsapp_message(phone, message)
+        success, response_msg = send_whatsapp_document(phone, file_url, caption=f"Quotation #{quotation.quotation_number or quotation.id}")
         
         if success:
              return JsonResponse({'success': True, 'message': response_msg})
         else:
-             # Enhanced Error Handling
              error_msg = str(response_msg)
              if "Access denied" in error_msg and "IP" in error_msg:
                   error_msg += " <br><b>Action Required:</b> Go to Wablas Dashboard > Security and whitelist the IP shown in this error."
-             
              return JsonResponse({'success': False, 'error': error_msg})
              
     except Exception as e:
         logger.error(f"WhatsApp Error: {e}")
         return JsonResponse({'success': False, 'error': str(e)})
 
+@login_required
+def download_lpo_pdf(request, pk):
+    lpo = get_object_or_404(PurchaseOrder, pk=pk)
+    context = get_pdf_context(lpo, 'lpo')
+    pdf = generate_pdf_file('pdf/lpo_pdf.html', context, request)
+    response = HttpResponse(pdf, content_type='application/pdf')
+    response['Content-Disposition'] = f'attachment; filename="LPO_{lpo.lpo_number or lpo.id}.pdf"'
+    return response
+
 @login_required
 def send_lpo_whatsapp(request):
     if request.method != 'POST':
@@ -1543,11 +1553,9 @@ def send_lpo_whatsapp(request):
         data = json.loads(request.body)
         lpo_id = data.get('lpo_id')
         phone = data.get('phone')
-        pdf_data = data.get('pdf_data')
     except json.JSONDecodeError:
         lpo_id = request.POST.get('lpo_id')
         phone = request.POST.get('phone')
-        pdf_data = None
     
     if not lpo_id:
         return JsonResponse({'success': False, 'error': 'LPO ID missing'})
@@ -1561,30 +1569,24 @@ def send_lpo_whatsapp(request):
              return JsonResponse({'success': False, 'error': 'Phone number missing'})
     
     try:
-        if pdf_data:
-            if ',' in pdf_data:
-                pdf_data = pdf_data.split(',')[1]
+        context = get_pdf_context(lpo, 'lpo')
+        pdf_bytes = generate_pdf_file('pdf/lpo_pdf.html', context, request)
         
-            file_data = base64.b64decode(pdf_data)
-            dir_path = os.path.join(django_settings.MEDIA_ROOT, 'temp_lpos')
-            os.makedirs(dir_path, exist_ok=True)
+        dir_path = os.path.join(django_settings.MEDIA_ROOT, 'temp_lpos')
+        os.makedirs(dir_path, exist_ok=True)
+        filename = f"lpo_{lpo.id}_{int(timezone.now().timestamp())}.pdf"
+        file_path = os.path.join(dir_path, filename)
         
-            filename = f"lpo_{lpo.id}_{int(timezone.now().timestamp())}.pdf"
-            file_path = os.path.join(dir_path, filename)
+        with open(file_path, 'wb') as f:
+            f.write(pdf_bytes)
             
-            with open(file_path, 'wb') as f:
-                f.write(file_data)
+        file_url = request.build_absolute_uri(django_settings.MEDIA_URL + 'temp_lpos/' + filename)
         
-            file_url = request.build_absolute_uri(django_settings.MEDIA_URL + 'temp_lpos/' + filename)
+        success, response_msg = send_whatsapp_document(phone, file_url, caption=f"LPO #{lpo.lpo_number or lpo.id}")
         
-            success, response_msg = send_whatsapp_document(phone, file_url, caption=f"LPO #{lpo.lpo_number or lpo.id}")
-            
-            if success and lpo.status == 'draft':
-                lpo.status = 'sent'
-                lpo.save()
-            
-        else:
-            success, response_msg = send_whatsapp_message(phone, f"Here is LPO #{lpo.lpo_number or lpo.id}")
+        if success and lpo.status == 'draft':
+            lpo.status = 'sent'
+            lpo.save()
         
         if success:
              return JsonResponse({'success': True, 'message': response_msg})
@@ -2043,3 +2045,72 @@ def recall_held_sale_api(request, pk):
 @login_required
 def delete_held_sale_api(request, pk):
     return JsonResponse({'success': True})
+@login_required
+def backup_database(request):
+    if not request.user.is_superuser:
+        messages.error(request, _("You are not authorized to perform this action."))
+        return redirect('settings')
+
+    db_settings = django_settings.DATABASES['default']
+    db_name = db_settings['NAME']
+    db_user = db_settings['USER']
+    db_password = db_settings['PASSWORD']
+    db_host = db_settings['HOST']
+    
+    filename = f"backup_{db_name}_{timezone.now().strftime('%Y%m%d_%H%M%S')}.sql"
+    file_path = os.path.join(django_settings.BASE_DIR, 'tmp', filename)
+    os.makedirs(os.path.dirname(file_path), exist_ok=True)
+    
+    # Use mysqldump
+    command = f"mysqldump -h {db_host} -u {db_user} -p'{db_password}' {db_name} > {file_path}"
+    
+    try:
+        subprocess.check_call(command, shell=True)
+        response = FileResponse(open(file_path, 'rb'), content_type='application/sql')
+        response['Content-Disposition'] = f'attachment; filename="{filename}"'
+        return response
+    except Exception as e:
+        messages.error(request, f"Backup failed: {str(e)}")
+        return redirect('settings')
+
+@login_required
+def restore_database(request):
+    if not request.user.is_superuser:
+        messages.error(request, _("You are not authorized to perform this action."))
+        return redirect('settings')
+
+    if request.method == 'POST' and request.FILES.get('backup_file'):
+        backup_file = request.FILES['backup_file']
+        
+        # Security check: Ensure it's a sql file
+        if not backup_file.name.endswith('.sql'):
+             messages.error(request, _("Invalid file format. Please upload a .sql file."))
+             return redirect('settings')
+
+        db_settings = django_settings.DATABASES['default']
+        db_name = db_settings['NAME']
+        db_user = db_settings['USER']
+        db_password = db_settings['PASSWORD']
+        db_host = db_settings['HOST']
+
+        # Save uploaded file temporarily
+        temp_path = os.path.join(django_settings.BASE_DIR, 'tmp', 'restore.sql')
+        os.makedirs(os.path.dirname(temp_path), exist_ok=True)
+        
+        with open(temp_path, 'wb+') as destination:
+            for chunk in backup_file.chunks():
+                destination.write(chunk)
+        
+        # Use mysql to restore
+        command = f"mysql -h {db_host} -u {db_user} -p'{db_password}' {db_name} < {temp_path}"
+        
+        try:
+            subprocess.check_call(command, shell=True)
+            messages.success(request, _("Database restored successfully!"))
+        except Exception as e:
+            messages.error(request, f"Restore failed: {str(e)}")
+        finally:
+            if os.path.exists(temp_path):
+                os.remove(temp_path)
+                
+    return redirect('settings')

requirements.txt

@@ -4,3 +4,4 @@ python-dotenv==1.1.1
 gunicorn==21.2.0
 requests
 openpyxl
+WeasyPrint