add shipping label generation and email functionality

mailer.js

@@ -7,9 +7,10 @@ const path = require('path');
  * Sends a premium custom email with the PDF attachment.
  * @param {string} toEmail - The recipient's email address
  * @param {Object} orderData - The Shopify order payload
- * @param {Buffer} pdfBuffer - The PDF data buffer
+ * @param {Buffer} pdfBuffer - The invoice PDF data buffer
+ * @param {Buffer} [shippingLabelBuffer] - Optional shipping label PDF buffer
  */
-const sendEmailWithAttachment = async (toEmail, orderData, pdfBuffer) => {
+const sendEmailWithAttachment = async (toEmail, orderData, pdfBuffer, shippingLabelBuffer = null) => {
     const transporter = nodemailer.createTransport({
         host: process.env.SMTP_HOST,
         port: Number(process.env.SMTP_PORT) || 465,
@@ -209,8 +210,8 @@ const sendEmailWithAttachment = async (toEmail, orderData, pdfBuffer) => {
     </html>
     `;
 
-    // Build attachments array - always include PDF, add logo as CID inline if it exists
+    // --- Customer attachments: Invoice PDF only ---
-    const attachments = [
+    const customerAttachments = [
         {
             filename: `Invoice_${orderNumber}.pdf`,
             content: pdfBuffer,
@@ -219,26 +220,65 @@ const sendEmailWithAttachment = async (toEmail, orderData, pdfBuffer) => {
     ];
 
     if (logoExists) {
-        attachments.push({
+        customerAttachments.push({
             filename: 'logo.png',
             path: localLogoPath,
-            cid: 'store_logo'  // Referenced in HTML as src="cid:store_logo"
+            cid: 'store_logo'
         });
     }
 
-    const mailOptions = {
+    // --- Seller attachments: Invoice PDF + Shipping Label PDF ---
-        from: `"${process.env.SHOP_NAME || 'Your Store'}" <${process.env.SMTP_FROM_EMAIL}>`,
+    const sellerAttachments = [
-        to: toEmail,
+        {
-        subject: `Invoice for your order #${orderNumber}`,
+            filename: `Invoice_${orderNumber}.pdf`,
-        text: `Thank you for your order! Attached is the invoice for order #${orderNumber}.`,
+            content: pdfBuffer,
-        html: htmlTemplate,
+            contentType: 'application/pdf'
-        attachments
+        }
-    };
+    ];
+
+    if (shippingLabelBuffer) {
+        sellerAttachments.push({
+            filename: `ShippingLabel_${orderNumber}.pdf`,
+            content: shippingLabelBuffer,
+            contentType: 'application/pdf'
+        });
+    }
+
+    if (logoExists) {
+        sellerAttachments.push({
+            filename: 'logo.png',
+            path: localLogoPath,
+            cid: 'store_logo'
+        });
+    }
 
     try {
-        const info = await transporter.sendMail(mailOptions);
+        // 1. Send to customer (Invoice only)
-        console.log(`Email sent: ${info.messageId}`);
+        const customerMail = await transporter.sendMail({
-        return info;
+            from: `"${process.env.SHOP_NAME || 'Your Store'}" <${process.env.SMTP_FROM_EMAIL}>`,
+            to: toEmail,
+            subject: `Invoice for your order #${orderNumber}`,
+            text: `Thank you for your order! Attached is the invoice for order #${orderNumber}.`,
+            html: htmlTemplate,
+            attachments: customerAttachments
+        });
+        console.log(`Customer email sent: ${customerMail.messageId}`);
+
+        // 2. Send to seller (Invoice + Shipping Label)
+        const sellerEmail = process.env.SELLER_EMAIL;
+        if (sellerEmail) {
+            const sellerMail = await transporter.sendMail({
+                from: `"${process.env.SHOP_NAME || 'Your Store'}" <${process.env.SMTP_FROM_EMAIL}>`,
+                to: sellerEmail,
+                subject: `[NEW ORDER] #${orderNumber} - Invoice & Shipping Label`,
+                text: `New order #${orderNumber} received. Invoice and Shipping Label attached.`,
+                html: htmlTemplate,
+                attachments: sellerAttachments
+            });
+            console.log(`Seller email sent: ${sellerMail.messageId}`);
+        }
+
+        return customerMail;
     } catch (error) {
         console.error('Error sending email:', error);
         throw error;

send-label-test.js

@@ -0,0 +1,80 @@
+require('dotenv').config({ override: true });
+const nodemailer = require('nodemailer');
+const { generateShippingLabelPDF } = require('./shippingLabelGenerator');
+
+async function sendTestShippingLabelEmail() {
+    try {
+        console.log('Generating dummy Shipping Label...');
+        const dummyOrder = {
+            name: '#9999',
+            order_number: 9999,
+            created_at: new Date().toISOString(),
+            currency: 'INR',
+            subtotal_price: '660.00',
+            total_tax: '0.00',
+            total_price: '660.00',
+            gateway: 'Request Quote',
+            shipping_lines: [{ title: 'Delhivery Courier' }],
+            billing_address: {
+                first_name: 'Alagu', last_name: 'Raj',
+                address1: 'South Street', address2: 'Near Temple',
+                city: 'Tuticorin', province: 'Tamil Nadu', zip: '628304',
+                country: 'India', phone: '7871207631'
+            },
+            shipping_address: {
+                first_name: 'Alagu', last_name: 'Raj',
+                address1: 'South Street', address2: 'Near Temple',
+                city: 'Tuticorin', province: 'Tamil Nadu', zip: '628304',
+                country: 'India', phone: '7871207631'
+            },
+            email: process.env.SMTP_USER,
+            line_items: [
+                { name: 'Flat Bangle 4 Cut - Each Box', quantity: 1, price: '130.00', image_url: 'https://picsum.photos/200' },
+                { name: 'Glue Stick pencil - 1 piece', quantity: 3, price: '35.00', image_url: 'https://picsum.photos/200' },
+                { name: 'E-8000 - 50ML - 1 Piece', quantity: 2, price: '60.00', image_url: 'https://picsum.photos/200' }
+            ]
+        };
+
+        const shippingLabelBuffer = await generateShippingLabelPDF(dummyOrder);
+        console.log('Shipping Label PDF generated successfully.');
+        const fs = require('fs');
+        fs.writeFileSync('shipping-label-test.pdf', shippingLabelBuffer);
+        console.log('Saved shipping-label-test.pdf to disk.');
+
+        const transporter = nodemailer.createTransport({
+            host: process.env.SMTP_HOST,
+            port: Number(process.env.SMTP_PORT) || 465,
+            secure: process.env.SMTP_SECURE === 'true',
+            auth: {
+                user: process.env.SMTP_USER,
+                pass: process.env.SMTP_PASS,
+            },
+            tls: {
+                rejectUnauthorized: false
+            }
+        });
+
+        const targetEmail = process.env.SMTP_USER;
+        console.log(`Sending email with shipping label attached to ${targetEmail}...`);
+
+        const mailInfo = await transporter.sendMail({
+            from: `"${process.env.SHOP_NAME || 'Your Store'}" <${process.env.SMTP_FROM_EMAIL}>`,
+            to: targetEmail,
+            subject: `Test Shipping Label - Order #9999`,
+            text: `Hello, this is a test email with the generated Shipping Label PDF attached.`,
+            attachments: [
+                {
+                    filename: `ShippingLabel_9999.pdf`,
+                    content: shippingLabelBuffer,
+                    contentType: 'application/pdf'
+                }
+            ]
+        });
+
+        console.log(`Success! Test email sent: ${mailInfo.messageId}`);
+    } catch (error) {
+        console.error('Error sending test shipping label email:', error);
+    }
+}
+
+sendTestShippingLabelEmail();

server.js

@@ -3,6 +3,7 @@ const express = require('express');
 const cors = require('cors');
 const crypto = require('crypto');
 const { generateInvoicePDF } = require('./pdfGenerator');
+const { generateShippingLabelPDF } = require('./shippingLabelGenerator');
 const { sendEmailWithAttachment } = require('./mailer');
 
 const app = express();
@@ -105,10 +106,13 @@ app.post('/webhooks/orders/create', verifyShopifyWebhook, async (req, res) => {
             }));
         }
 
-        // 1. Generate the PDF invoice
+        // 1. Generate the PDF invoice and shipping label in parallel
-        const pdfBuffer = await generateInvoicePDF(orderData);
+        const [pdfBuffer, shippingLabelBuffer] = await Promise.all([
+            generateInvoicePDF(orderData),
+            generateShippingLabelPDF(orderData)
+        ]);
 
-        // 2. Send the email with the attached PDF
+        // 2. Send the email with the attached PDFs
         const customerEmail = orderData.email || orderData.contact_email;
         if (!customerEmail) {
             const errorMsg = `[${new Date().toISOString()}] Order ${orderData.order_number} has no email address associated.\n`;
@@ -119,7 +123,8 @@ app.post('/webhooks/orders/create', verifyShopifyWebhook, async (req, res) => {
         await sendEmailWithAttachment(
             customerEmail,
             orderData,
-            pdfBuffer
+            pdfBuffer,
+            shippingLabelBuffer
         );
 
         const successMsg = `[${new Date().toISOString()}] Successfully processed and sent email for Order ${orderData.order_number}\n`;

shippingLabelGenerator.js

@@ -0,0 +1,254 @@
+const PDFDocument = require('pdfkit');
+const fs = require('fs');
+const path = require('path');
+
+/**
+ * Helper to draw a clean, structured mock barcode
+ */
+function drawBarcode(doc, x, y, width, height, text) {
+    doc.save();
+    let currentX = x;
+    const endX = x + width;
+
+    // Draw barcode bars
+    while (currentX < endX) {
+        // Vary the bar width and spacing to make it look like a real barcode
+        const isWide = Math.random() > 0.6;
+        const lineWidth = isWide ? 2.2 : 0.9;
+        const spacing = Math.random() > 0.4 ? 1.5 : 2.5;
+        
+        if (currentX + lineWidth > endX) break;
+        
+        doc.rect(currentX, y, lineWidth, height - 16).fill('#000000');
+        currentX += lineWidth + spacing;
+    }
+
+    // Barcode number text below bars (with extra vertical gap and letter spacing)
+    doc.fontSize(8.5)
+       .font('Helvetica-Bold')
+       .fillColor('#000000')
+       .text(text, x, y + height - 11, { width: width, align: 'center', characterSpacing: 1.5 });
+
+    doc.restore();
+}
+
+/**
+ * Helper to adjust order number using ORDER_NUMBER_OFFSET
+ */
+const getAdjustedOrderNumber = (orderNumberOrName) => {
+    if (!orderNumberOrName) return '';
+    const offset = parseInt(process.env.ORDER_NUMBER_OFFSET, 10) || 0;
+    const str = orderNumberOrName.toString();
+    const matches = str.match(/\d+/);
+    if (!matches) return str;
+    const num = parseInt(matches[0], 10);
+    return (num + offset).toString();
+};
+
+/**
+ * Generates a professional 4x6 inch shipping label PDF.
+ * @param {Object} orderData - The Shopify order payload
+ * @returns {Promise<Buffer>} - A promise that resolves to a Buffer containing the PDF data
+ */
+const generateShippingLabelPDF = async (orderData) => {
+    return new Promise(async (resolve, reject) => {
+        try {
+            // 4x6 inch = 288 x 432 points (1 inch = 72 points)
+            const doc = new PDFDocument({
+                margin: 0,
+                size: [288, 432]
+            });
+
+            let buffers = [];
+            doc.on('data', buffers.push.bind(buffers));
+            doc.on('end', () => resolve(Buffer.concat(buffers)));
+
+            const W = 288;
+            const H = 432;
+            const PAD = 16;
+
+            // --- BACKGROUND ---
+            doc.rect(0, 0, W, H).fill('#ffffff');
+
+            // --- OUTER BORDER (Thicker, professional frame) ---
+            doc.rect(6, 6, W - 12, H - 12)
+               .lineWidth(2)
+               .strokeColor('#1e293b')
+               .stroke();
+
+            // ============================================================
+            // SECTION 1: HEADER STRIP (FROM shop info)
+            // ============================================================
+            const headerY = 6;
+            const headerH = 58;
+            doc.rect(6, headerY, W - 12, headerH).fill('#1e293b');
+
+            // Load local logo if it exists
+            const localLogoPath = path.join(__dirname, 'logo.png');
+            let logoLoaded = false;
+            if (fs.existsSync(localLogoPath)) {
+                try {
+                    doc.image(localLogoPath, PAD, headerY + 9, { height: 40 });
+                    logoLoaded = true;
+                } catch (e) { /* silent fail */ }
+            }
+
+            // Shop name text (right side of header)
+            doc.fontSize(12.5)
+               .font('Helvetica-Bold')
+               .fillColor('#ffffff')
+               .text('RAY AARI SHOP', logoLoaded ? 95 : PAD, headerY + 13, { width: W - (logoLoaded ? 111 : PAD * 2) });
+
+            doc.fontSize(7.5)
+               .font('Helvetica')
+               .fillColor('#cbd5e1')
+               .text('Sivanatham Salai, Arappalayam Cross Rd,', logoLoaded ? 95 : PAD, headerY + 28, { width: W - (logoLoaded ? 111 : PAD * 2) })
+               .text('Madurai 625016, Tamil Nadu, India | Ph: 9994333548', logoLoaded ? 95 : PAD, headerY + 38, { width: W - (logoLoaded ? 111 : PAD * 2) });
+
+            // ============================================================
+            // SECTION 2: ORDER INFO STRIP (Left-Right Aligned)
+            // ============================================================
+            const orderStripY = headerY + headerH;
+            const orderStripH = 30;
+            doc.rect(6, orderStripY, W - 12, orderStripH).fill('#f1f5f9');
+
+            const orderNumber = getAdjustedOrderNumber(orderData.order_number || orderData.name);
+            const orderDate = new Date(orderData.created_at || Date.now()).toLocaleDateString('en-GB');
+            const shippingMethod = orderData.shipping_lines?.[0]?.title || 'Standard Courier';
+
+            // Order Number on Left
+            doc.fontSize(9.5)
+               .font('Helvetica-Bold')
+               .fillColor('#0f172a')
+               .text(`ORDER: #${orderNumber}`, PAD, orderStripY + 10);
+
+            // Date | Courier Method on Right
+            doc.fontSize(8)
+               .font('Helvetica-Bold')
+               .fillColor('#475569')
+               .text(`${orderDate}  |  ${shippingMethod}`, PAD, orderStripY + 11, { width: W - PAD * 2, align: 'right' });
+
+            // ============================================================
+            // SECTION 3: SHIP TO SECTION
+            // ============================================================
+            const shipToLabelY = orderStripY + orderStripH;
+            const shipToLabelH = 18;
+            doc.rect(6, shipToLabelY, W - 12, shipToLabelH).fill('#0f172a');
+            
+            doc.fontSize(8.5)
+               .font('Helvetica-Bold')
+               .fillColor('#ffffff')
+               .text('SHIP TO', PAD, shipToLabelY + 5, { width: W - PAD * 2, align: 'center' });
+
+            // ============================================================
+            // SECTION 4: CUSTOMER ADDRESS (Clean typesetting)
+            // ============================================================
+            const addressStartY = shipToLabelY + shipToLabelH + 12;
+            const shipping = orderData.shipping_address || orderData.billing_address || {};
+
+            const toName = `${shipping.first_name || ''} ${shipping.last_name || ''}`.trim() || 'Customer';
+            const toPhone = shipping.phone || orderData.phone || orderData.billing_address?.phone || '';
+            const toAddr1 = shipping.address1 || '';
+            const toAddr2 = shipping.address2 || '';
+            const toCity = shipping.city || '';
+            const toProvince = shipping.province || '';
+            const toZip = shipping.zip || '';
+            const toCountry = shipping.country || 'India';
+
+            // Customer Name
+            doc.fontSize(14)
+               .font('Helvetica-Bold')
+               .fillColor('#0f172a')
+               .text(toName, PAD, addressStartY, { width: W - PAD * 2 });
+
+            let currentY = addressStartY + 18;
+
+            // Customer Phone (Clean phone icon fallback)
+            if (toPhone) {
+                doc.fontSize(9.5)
+                   .font('Helvetica-Bold')
+                   .fillColor('#0f172a')
+                   .text(`Phone: ${toPhone}`, PAD, currentY, { width: W - PAD * 2 });
+                currentY += 14;
+            }
+
+            // Customer Address lines combined with consistent spacing
+            const addressParts = [];
+            if (toAddr1) addressParts.push(toAddr1);
+            if (toAddr2) addressParts.push(toAddr2);
+            
+            if (toCity || toProvince || toZip) {
+                const parts = [];
+                if (toCity) parts.push(toCity);
+                if (toProvince) parts.push(toProvince);
+                const cityState = parts.join(', ');
+                addressParts.push(cityState + (toZip ? ' - ' + toZip : ''));
+            }
+            addressParts.push(toCountry);
+
+            const addressText = addressParts.join('\n');
+
+            doc.fontSize(9.5)
+               .font('Helvetica')
+               .fillColor('#334155')
+               .text(addressText, PAD, currentY, { width: W - PAD * 2, lineGap: 3.5 });
+
+            // Calculate height of the address block to dynamically place the separator
+            const addressHeight = doc.heightOfString(addressText, { width: W - PAD * 2, lineGap: 3.5 });
+            currentY += addressHeight + 10;
+
+            // Ensure the separator doesn't overflow if address is short or long
+            const minSeparatorY = 250;
+            const sepY = Math.max(currentY, minSeparatorY);
+
+            // ============================================================
+            // SECTION 5: HORIZONTAL SEPARATOR
+            // ============================================================
+            doc.moveTo(PAD, sepY)
+               .lineTo(W - PAD, sepY)
+               .lineWidth(1)
+               .strokeColor('#cbd5e1')
+               .stroke();
+
+            // ============================================================
+            // SECTION 6: FROM ADDRESS (Ray Aari Shop - Return address)
+            // ============================================================
+            const fromY = sepY + 10;
+            
+            doc.fontSize(7.5)
+               .font('Helvetica-Bold')
+               .fillColor('#64748b')
+               .text('FROM / SENDER:', PAD, fromY);
+
+            doc.fontSize(9)
+               .font('Helvetica-Bold')
+               .fillColor('#1e293b')
+               .text('Ray Aari Shop', PAD, fromY + 12);
+
+            const shopAddressText = [
+                'Sivanatham Salai, Arappalayam Cross Rd, Near Madura Coats pvt',
+                'Madurai 625016, Tamil Nadu, India  |  Ph: 9994333548'
+            ].join('\n');
+
+            doc.fontSize(7.5)
+               .font('Helvetica')
+               .fillColor('#475569')
+               .text(shopAddressText, PAD, fromY + 24, { width: W - PAD * 2, lineGap: 2 });
+
+            // ============================================================
+            // SECTION 7: BARCODE STRIP (Locked to Bottom)
+            // ============================================================
+            const barcodeAreaY = H - 75;
+            doc.rect(6, barcodeAreaY, W - 12, 1).fill('#cbd5e1');
+
+            const barcodeText = `RA${orderNumber}IN`;
+            drawBarcode(doc, PAD + 15, barcodeAreaY + 12, W - PAD * 2 - 30, 52, barcodeText);
+
+            doc.end();
+        } catch (error) {
+            reject(error);
+        }
+    });
+};
+
+module.exports = { generateShippingLabelPDF };