fitlien-services/functions/src/payments/phonepe/invoice/invoiceService.ts
Allen T J 815e15b5ae
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Deploy FitLien services to Dev / Deploy to Dev (push) Failing after 3m6s
phonepe (#32)
Co-authored-by: AllenTJ7 <163137620+AllenTJ7@users.noreply.github.com>
Reviewed-on: #32
2025-05-20 08:47:28 +00:00

444 lines
14 KiB
TypeScript

import { getAdmin, getLogger } from "../../../shared/config";
import * as fs from 'fs';
import * as os from 'os';
import * as path from 'path';
import { format } from 'date-fns';
import { sendEmailWithAttachmentUtil } from "../../../utils/emailService";
const pdfMake = require('pdfmake/build/pdfmake');
const pdfFonts = require('pdfmake/build/vfs_fonts');
pdfMake.vfs = pdfFonts.pdfMake ? pdfFonts.pdfMake.vfs : pdfFonts.vfs;
const admin = getAdmin();
const logger = getLogger();
export interface InvoiceData {
invoiceNumber: string;
businessName: string;
address: string;
gstNumber?: string;
customerName: string;
phoneNumber: string;
email: string;
planName: string;
amount: number;
transactionId: string;
paymentDate: Date;
paymentMethod: string;
}
export interface EmailOptions {
recipientEmail: string;
recipientName?: string;
subject?: string;
customHtml?: string;
additionalData?: {
gymName?: string;
planName?: string;
amount?: number;
transactionId?: string;
paymentDate?: Date;
paymentMethod?: string;
};
}
export class InvoiceService {
async generateInvoice(data: InvoiceData): Promise<string> {
try {
const tempFilePath = path.join(os.tmpdir(), `invoice_${data.invoiceNumber}.pdf`);
const hasGst = data.gstNumber && data.gstNumber.length > 0;
const baseAmount = hasGst ? data.amount / 1.18 : data.amount;
const sgst = hasGst ? baseAmount * 0.09 : 0;
const cgst = hasGst ? baseAmount * 0.09 : 0;
const formattedDate = format(data.paymentDate, 'dd/MM/yyyy');
const docDefinition: any = {
content: [
{
columns: [
[
{ text: data.businessName, style: 'businessName' },
{ text: data.address, style: 'businessAddress' },
hasGst ? { text: `GSTIN: ${data.gstNumber}`, style: 'businessDetails' } : {}
],
[
{ text: 'RECEIPT', style: 'invoiceTitle', alignment: 'right' },
{ text: `Receipt #: ${data.invoiceNumber}`, style: 'invoiceDetails', alignment: 'right' },
{ text: `Date: ${formattedDate}`, style: 'invoiceDetails', alignment: 'right' }
]
]
},
{ canvas: [{ type: 'line', x1: 0, y1: 5, x2: 515, y2: 5, lineWidth: 0.5 }] },
{ text: '', margin: [0, 10] },
{
style: 'customerBox',
table: {
widths: ['*'],
body: [
[
{
stack: [
{ text: 'Receipt To:', style: 'customerTitle' },
{ text: data.customerName, style: 'customerDetails' },
{ text: `Phone: ${data.phoneNumber}`, style: 'customerDetails' },
{ text: `Email: ${data.email}`, style: 'customerDetails' }
],
margin: [10, 10]
}
]
]
},
layout: 'lightHorizontalLines'
},
{ text: '', margin: [0, 10] },
{
table: {
headerRows: 1,
widths: [30, '*', 80, 100],
body: [
[
{ text: 'No.', style: 'tableHeader', alignment: 'center' },
{ text: 'Description', style: 'tableHeader' },
{ text: 'HSN/SAC', style: 'tableHeader', alignment: 'center' },
{ text: 'Amount (INR)', style: 'tableHeader', alignment: 'right' }
],
[
{ text: '1', alignment: 'center' },
{ text: `${data.planName} Subscription` },
{ text: '999723', alignment: 'center' },
{ text: baseAmount.toFixed(2), alignment: 'right' }
]
]
}
},
{ text: '', margin: [0, 10] },
{
columns: [
{ width: '*', text: '' },
{
width: 'auto',
table: {
widths: [100, 100],
body: hasGst ? [
[
{ text: 'Taxable Amount:', alignment: 'right' },
{ text: `${baseAmount.toFixed(2)} INR`, alignment: 'right' }
],
[
{ text: 'SGST (9%):', alignment: 'right' },
{ text: `${sgst.toFixed(2)} INR`, alignment: 'right' }
],
[
{ text: 'CGST (9%):', alignment: 'right' },
{ text: `${cgst.toFixed(2)} INR`, alignment: 'right' }
],
[
{ text: 'Total Amount:', style: 'totalAmount', alignment: 'right' },
{ text: `${data.amount.toFixed(2)} INR`, style: 'totalAmount', alignment: 'right' }
]
] : [
[
{ text: 'Total Amount:', style: 'totalAmount', alignment: 'right' },
{ text: `${data.amount.toFixed(2)} INR`, style: 'totalAmount', alignment: 'right' }
]
]
},
layout: {
hLineWidth: function(i: number, node: any) {
return (i === node.table.body.length - 1) ? 0.5 : 0;
},
vLineWidth: function() { return 0; }
}
}
]
},
{ text: '', margin: [0, 20] },
{
style: 'paymentBox',
table: {
widths: ['*'],
body: [
[
{
stack: [
{ text: 'Payment Information:', style: 'paymentTitle' },
{ text: `Transaction ID: ${data.transactionId}`, style: 'paymentDetails' },
{ text: `Payment Method: ${data.paymentMethod}`, style: 'paymentDetails' },
{ text: `Payment Date: ${formattedDate}`, style: 'paymentDetails' }
],
margin: [10, 10]
}
]
]
},
layout: 'lightHorizontalLines'
},
{ text: '', margin: [0, 20] },
{ text: 'Thank you for your business!', style: 'footer', alignment: 'center' },
{ text: 'This is a computer-generated receipt and does not require a signature.', style: 'disclaimer', alignment: 'center' }
],
styles: {
businessName: {
fontSize: 20,
bold: true,
margin: [0, 0, 0, 5]
},
businessAddress: {
fontSize: 12,
margin: [0, 0, 0, 5]
},
businessDetails: {
fontSize: 12
},
invoiceTitle: {
fontSize: 24,
bold: true
},
invoiceDetails: {
fontSize: 12,
margin: [0, 5, 0, 0]
},
customerBox: {
margin: [0, 10, 0, 10]
},
customerTitle: {
fontSize: 12,
bold: true,
margin: [0, 0, 0, 5]
},
customerDetails: {
fontSize: 12,
margin: [0, 2, 0, 0]
},
tableHeader: {
fontSize: 12,
bold: true,
margin: [0, 5, 0, 5]
},
totalAmount: {
fontSize: 12,
bold: true
},
paymentBox: {
margin: [0, 10, 0, 10]
},
paymentTitle: {
fontSize: 12,
bold: true,
margin: [0, 0, 0, 5]
},
paymentDetails: {
fontSize: 12,
margin: [0, 2, 0, 0]
},
footer: {
fontSize: 12,
italics: true,
margin: [0, 0, 0, 5]
},
disclaimer: {
fontSize: 10
}
},
defaultStyle: {
font: 'Helvetica'
}
};
const pdfDoc = pdfMake.createPdf(docDefinition);
await new Promise<void>((resolve, reject) => {
pdfDoc.getBuffer((buffer: Buffer) => {
fs.writeFile(tempFilePath, buffer, (err) => {
if (err) reject(err);
else resolve();
});
});
});
const invoicePath = `invoices/${data.invoiceNumber}.pdf`;
const bucket = admin.storage().bucket();
await bucket.upload(tempFilePath, {
destination: invoicePath,
metadata: {
contentType: 'application/pdf',
},
});
fs.unlinkSync(tempFilePath);
return invoicePath;
} catch (error: any) {
logger.error('Error generating invoice:', error);
throw new Error(`Failed to generate invoice: ${error.message}`);
}
}
async getInvoiceDownloadUrl(invoicePath: string): Promise<string> {
try {
const bucket = admin.storage().bucket();
const file = bucket.file(invoicePath);
const expirationMs = 7 * 24 * 60 * 60 * 1000;
const [signedUrl] = await file.getSignedUrl({
action: 'read',
expires: Date.now() + expirationMs,
responseDisposition: `attachment; filename="${path.basename(invoicePath)}"`,
});
return signedUrl;
} catch (error: any) {
logger.error('Error getting invoice download URL:', error);
throw new Error(`Failed to get invoice download URL: ${error.message}`);
}
}
async updateInvoicePath(membershipId: string, paymentId: string, invoicePath: string): Promise<boolean> {
try {
const membershipPaymentsRef = admin.firestore()
.collection('membership_payments')
.doc(membershipId);
const docSnapshot = await membershipPaymentsRef.get();
if (!docSnapshot.exists) {
logger.error(`No membership payments found for membershipId: ${membershipId}`);
return false;
}
const data = docSnapshot.data();
const paymentsData = data?.payments || [];
let found = false;
for (let i = 0; i < paymentsData.length; i++) {
if (paymentsData[i].referenceNumber === paymentId ||
paymentsData[i].transactionId === paymentId) {
paymentsData[i].invoicePath = invoicePath;
found = true;
break;
}
}
if (!found) {
logger.error(`No payment found with ID: ${paymentId} in membership: ${membershipId}`);
return false;
}
await membershipPaymentsRef.update({
'payments': paymentsData,
'updatedAt': admin.firestore.FieldValue.serverTimestamp(),
});
logger.info(`Successfully updated invoice path for payment: ${paymentId}`);
return true;
} catch (error: any) {
logger.error('Error updating payment with invoice path:', error);
return false;
}
}
async sendInvoiceEmail(invoicePath: string, emailOptions: EmailOptions): Promise<boolean> {
try {
const downloadUrl = await this.getInvoiceDownloadUrl(invoicePath);
const formattedDate = emailOptions.additionalData?.paymentDate
? new Date(emailOptions.additionalData.paymentDate).toLocaleDateString('en-GB')
: new Date().toLocaleDateString('en-GB');
const emailHtml = emailOptions.customHtml || `
<html>
<body>
<h2>Thank you for your payment</h2>
<p>Dear ${emailOptions.recipientName || 'Valued Customer'},</p>
<p>Thank you for your payment. Your membership has been successfully activated.</p>
<p>Please find attached your invoice for the payment.</p>
<p>Membership Details:</p>
<ul>
<li>Gym: ${emailOptions.additionalData?.gymName || 'Fitlien'}</li>
<li>Plan: ${emailOptions.additionalData?.planName || 'Membership'}</li>
<li>Amount: ₹${emailOptions.additionalData?.amount || '0'}</li>
<li>Transaction ID: ${emailOptions.additionalData?.transactionId || 'N/A'}</li>
<li>Date: ${formattedDate}</li>
<li>Payment Method: ${emailOptions.additionalData?.paymentMethod || 'Online'}</li>
</ul>
<p>If you have any questions, please contact us.</p>
<p>Regards,<br>Fitlien Team</p>
</body>
</html>
`;
await sendEmailWithAttachmentUtil(
emailOptions.recipientEmail,
emailOptions.subject || 'Your Fitlien Membership Invoice',
emailHtml,
downloadUrl,
`Invoice_${path.basename(invoicePath)}`
);
logger.info(`Invoice email sent to ${emailOptions.recipientEmail}`);
return true;
} catch (error: any) {
logger.error('Error sending invoice email:', error);
return false;
}
}
async processInvoice(
membershipId: string,
paymentId: string,
invoiceData: InvoiceData,
emailOptions?: EmailOptions
): Promise<{
success: boolean;
invoicePath?: string;
downloadUrl?: string;
emailSent: boolean;
error?: string;
}> {
try {
const invoicePath = await this.generateInvoice(invoiceData);
const updateSuccess = await this.updateInvoicePath(membershipId, paymentId, invoicePath);
if (!updateSuccess) {
return {
success: false,
invoicePath,
emailSent: false,
error: 'Failed to update payment with invoice path'
};
}
const downloadUrl = await this.getInvoiceDownloadUrl(invoicePath);
let emailSent = false;
if (emailOptions && emailOptions.recipientEmail) {
emailSent = await this.sendInvoiceEmail(invoicePath, emailOptions);
}
return {
success: true,
invoicePath,
downloadUrl,
emailSent
};
} catch (error: any) {
logger.error('Error processing invoice:', error);
return {
success: false,
emailSent: false,
error: error.message
};
}
}
}