335 lines
15 KiB
TypeScript
335 lines
15 KiB
TypeScript
import puppeteer from 'puppeteer';
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import { WorkflowRequest } from '@models/WorkflowRequest';
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import { ClaimInvoice } from '@models/ClaimInvoice';
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import { DealerClaimDetails } from '@models/DealerClaimDetails';
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import { DealerProposalDetails } from '@models/DealerProposalDetails';
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import { DealerCompletionExpense } from '@models/DealerCompletionExpense';
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import { ClaimInvoiceItem } from '@models/ClaimInvoiceItem';
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import { ActivityType } from '@models/ActivityType';
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import { amountToWords } from '@utils/currencyUtils';
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import { findDealerLocally } from './dealer.service';
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import path from 'path';
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import fs from 'fs';
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import logger from '@utils/logger';
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import dayjs from 'dayjs';
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export class PdfService {
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constructor() { }
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async generateInvoicePdf(requestId: string): Promise<Buffer> {
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const browser = await puppeteer.launch({
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headless: true,
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args: ['--no-sandbox', '--disable-setuid-sandbox']
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});
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try {
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const page = await browser.newPage();
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const request = await WorkflowRequest.findByPk(requestId);
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const invoice = await ClaimInvoice.findOne({ where: { requestId } });
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const claimDetails = await DealerClaimDetails.findOne({ where: { requestId } });
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const proposalDetails = await DealerProposalDetails.findOne({ where: { requestId } });
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const completionExpenses = await DealerCompletionExpense.findAll({
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where: { requestId },
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order: [['createdAt', 'ASC']]
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});
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const invoiceItems = await ClaimInvoiceItem.findAll({
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where: { requestId },
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order: [['slNo', 'ASC']]
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});
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const dealer = await findDealerLocally(claimDetails?.dealerCode, claimDetails?.dealerEmail);
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// Resolve taxationType
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let taxationType = 'GST';
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if (claimDetails?.activityType) {
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const activity = await ActivityType.findOne({ where: { title: claimDetails?.activityType } });
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taxationType = activity?.taxationType || (claimDetails.activityType.toLowerCase().includes('non') ? 'Non GST' : 'GST');
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}
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if (!request || !invoice) {
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throw new Error('Request or Invoice not found');
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}
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const htmlContent = this.getInvoiceHtmlTemplate({
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request,
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invoice,
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claimDetails,
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proposalDetails,
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completionExpenses,
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invoiceItems,
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dealer,
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taxationType
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});
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await page.setContent(htmlContent, { waitUntil: 'networkidle0' });
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const pdfBuffer = Buffer.from(await page.pdf({
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format: 'A4',
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printBackground: true,
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margin: { top: '20px', bottom: '20px', left: '20px', right: '20px' }
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}));
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return pdfBuffer;
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} catch (error) {
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logger.error(`[PdfService] Error generating PDF for request ${requestId}:`, error);
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throw error;
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} finally {
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await browser.close();
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}
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}
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private getInvoiceHtmlTemplate(data: any): string {
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const { request, invoice, dealer, claimDetails, completionExpenses = [], invoiceItems = [], taxationType } = data;
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const qrImage = invoice.qrImage ? `data:image/png;base64,${invoice.qrImage}` : '';
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const logoUrl = `{{LOGO_URL}}`;
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const isNonGst = taxationType === 'Non GST' || taxationType === 'Non-GST';
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let tableRows = '';
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if (invoiceItems && invoiceItems.length > 0) {
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// Use persisted invoice items (matches PWC payload exactly)
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tableRows = invoiceItems.map((item: any) => `
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<tr>
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<td>${item.slNo}</td>
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<td>${item.description}</td>
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${!isNonGst ? `<td>${item.hsnCd}</td>` : ''}
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<td>${Number(item.assAmt).toFixed(2)}</td>
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<td>0.00</td>
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<td>${item.unit}</td>
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${!isNonGst ? `<td>${Number(item.assAmt).toFixed(2)}</td>` : ''}
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${!isNonGst ? `
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<td>${Number(item.igstAmt) > 0 ? Number(item.gstRt).toFixed(2) : '0.00'}</td>
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<td>${Number(item.igstAmt).toFixed(2)}</td>
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<td>${Number(item.cgstAmt) > 0 ? (Number(item.gstRt) / 2).toFixed(2) : '0.00'}</td>
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<td>${Number(item.cgstAmt).toFixed(2)}</td>
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<td>${Number(item.sgstAmt) > 0 ? (Number(item.gstRt) / 2).toFixed(2) : '0.00'}</td>
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<td>${Number(item.sgstAmt).toFixed(2)}</td>
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` : ''}
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<td>${Number(isNonGst ? item.assAmt : item.totItemVal).toFixed(2)}</td>
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</tr>
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`).join('');
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} else if (completionExpenses.length > 0) {
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// Group expenses by HSN/SAC and GST Rate for clubbed display
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const grouped: Record<string, any> = {};
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completionExpenses.forEach((item: any) => {
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const hsn = item.hsnCode || 'N/A';
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const rate = Number(item.gstRate || 0);
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const key = isNonGst ? 'NON_GST' : `${hsn}_${rate}`;
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if (!grouped[key]) {
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grouped[key] = {
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hsn,
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rate,
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description: item.description || 'Expense',
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amount: 0,
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igstRate: item.igstRate || 0,
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igstAmt: 0,
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cgstRate: item.cgstRate || 0,
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cgstAmt: 0,
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sgstRate: item.sgstRate || 0,
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sgstAmt: 0,
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totalAmt: 0
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};
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}
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const qty = Number(item.quantity || 1);
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grouped[key].amount += Number(item.amount || 0) * qty;
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grouped[key].igstAmt += Number(item.igstAmt || 0);
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grouped[key].cgstAmt += Number(item.cgstAmt || 0);
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grouped[key].sgstAmt += Number(item.sgstAmt || 0);
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grouped[key].totalAmt += Number(item.totalAmt || 0);
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});
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tableRows = Object.values(grouped).map((item: any) => `
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<tr>
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<td>EXPENSE</td>
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<td>${item.description}</td>
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${!isNonGst ? `<td>${item.hsn}</td>` : ''}
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<td>${Number(item.amount).toFixed(2)}</td>
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<td>0.00</td>
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<td>EA</td>
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${!isNonGst ? `<td>${Number(item.amount).toFixed(2)}</td>` : ''}
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${!isNonGst ? `
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<td>${Number(item.igstRate || 0).toFixed(2)}</td>
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<td>${Number(item.igstAmt || 0).toFixed(2)}</td>
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<td>${Number(item.cgstRate || 0).toFixed(2)}</td>
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<td>${Number(item.cgstAmt || 0).toFixed(2)}</td>
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<td>${Number(item.sgstRate || 0).toFixed(2)}</td>
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<td>${Number(item.sgstAmt || 0).toFixed(2)}</td>
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` : ''}
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<td>${Number(isNonGst ? item.amount : item.totalAmt).toFixed(2)}</td>
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</tr>
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`).join('');
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} else {
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tableRows = `
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<tr>
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<td>CLAIM</td>
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<td>${request.title || 'Warranty Claim'}</td>
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${!isNonGst ? '<td>998881</td>' : ''}
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<td>${Number(invoice.taxableValue || invoice.amount || 0).toFixed(2)}</td>
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<td>0.00</td>
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<td>EA</td>
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${!isNonGst ? `<td>${Number(invoice.taxableValue || invoice.amount || 0).toFixed(2)}</td>` : ''}
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${!isNonGst ? `
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<td>${invoice.igstTotal > 0 ? (Number(invoice.igstTotal) / Number(invoice.taxableValue || invoice.amount || 1) * 100).toFixed(2) : '0.00'}</td>
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<td>${Number(invoice.igstTotal || 0).toFixed(2)}</td>
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<td>${invoice.cgstTotal > 0 ? (Number(invoice.cgstTotal) / Number(invoice.taxableValue || invoice.amount || 1) * 100).toFixed(2) : '0.00'}</td>
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<td>${Number(invoice.cgstTotal || 0).toFixed(2)}</td>
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<td>${invoice.sgstTotal > 0 ? (Number(invoice.sgstTotal) / Number(invoice.taxableValue || invoice.amount || 1) * 100).toFixed(2) : '0.00'}</td>
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<td>${Number(invoice.sgstTotal || 0).toFixed(2)}</td>
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` : ''}
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<td>${Number(isNonGst ? (invoice.taxableValue || invoice.amount) : invoice.amount || 0).toFixed(2)}</td>
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</tr>
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`;
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}
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let totalTaxable = 0;
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let totalTax = 0;
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let grandTotal = 0;
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if (invoiceItems && invoiceItems.length > 0) {
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invoiceItems.forEach((item: any) => {
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totalTaxable += Number(item.assAmt || 0);
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if (!isNonGst) {
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totalTax += Number(item.igstAmt || 0) + Number(item.cgstAmt || 0) + Number(item.sgstAmt || 0);
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grandTotal += Number(item.totItemVal || 0);
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} else {
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grandTotal += Number(item.assAmt || 0);
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}
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});
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} else if (completionExpenses.length > 0) {
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completionExpenses.forEach((item: any) => {
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const qty = Number(item.quantity || 1);
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const baseAmt = Number(item.amount || 0) * qty;
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totalTaxable += baseAmt;
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if (!isNonGst) {
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const taxAmt = Number(item.igstAmt || 0) + Number(item.cgstAmt || 0) + Number(item.sgstAmt || 0);
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totalTax += taxAmt;
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grandTotal += (baseAmt + taxAmt);
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} else {
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grandTotal += baseAmt;
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}
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});
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} else {
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totalTaxable = Number(invoice.taxableValue || invoice.amount || 0);
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if (!isNonGst) {
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totalTax = Number(invoice.igstTotal || 0) + Number(invoice.cgstTotal || 0) + Number(invoice.sgstTotal || 0);
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grandTotal = Number(invoice.amount || 0);
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} else {
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grandTotal = totalTaxable;
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}
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}
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const totalValueInWords = amountToWords(grandTotal);
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const totalTaxInWords = amountToWords(totalTax);
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return `
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body { font-family: Arial, sans-serif; margin: 0; padding: 20px; color: #333; }
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.header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
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.logo { height: 40px; }
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.qr-code { width: 150px; height: 150px; }
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.irn-details { font-size: 11px; margin-top: 10px; }
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.irn-details div { margin-bottom: 4px; }
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.title { text-align: center; font-size: 24px; font-weight: bold; margin: 30px 0; border-top: 1px solid #ccc; padding-top: 20px; }
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.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 30px; font-size: 12px; }
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.info-section h3 { font-size: 14px; margin-bottom: 10px; }
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.info-row { display: flex; margin-bottom: 5px; }
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.info-label { width: 120px; font-weight: bold; }
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.info-value { flex: 1; }
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table { width: 100%; border-collapse: collapse; margin-top: 20px; font-size: 10px; }
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th, td { border: 1px solid #333; padding: 6px; text-align: left; }
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th { background-color: #f2f2f2; }
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.totals { margin-top: 20px; width: 300px; margin-left: auto; font-size: 12px; }
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.totals-row { display: flex; justify-content: space-between; padding: 5px 0; }
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.totals-row.grand-total { border-top: 2px solid #333; font-weight: bold; margin-top: 10px; }
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.words { margin-top: 30px; font-size: 11px; font-style: italic; }
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.footer { margin-top: 60px; text-align: right; font-size: 12px; }
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.signature { margin-top: 40px; border-top: 1px solid #333; width: 200px; margin-left: auto; text-align: center; padding-top: 5px; }
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</style>
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</head>
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<body>
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<div class="header">
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<div>
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<img src="${logoUrl}" class="logo" />
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<div class="irn-details">
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${invoice.irn ? `<div><strong>IRN No :</strong> ${invoice.irn}</div>` : ''}
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${invoice.ackNo ? `<div><strong>Ack No :</strong> ${invoice.ackNo}</div>` : ''}
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${invoice.ackDate ? `<div><strong>Ack Date & Time :</strong> ${dayjs(invoice.ackDate).format('YYYY-MM-DD HH:mm:ss')}</div>` : ''}
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</div>
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</div>
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${qrImage ? `<img src="${qrImage}" class="qr-code" />` : ''}
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</div>
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<div class="title">${isNonGst ? 'CLAIM INVOICE' : 'CLAIM TAX INVOICE'}</div>
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<div class="info-grid">
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<div class="info-section">
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<div class="info-row"><div class="info-label">Customer Name</div><div class="info-value">Royal Enfield</div></div>
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<div class="info-row"><div class="info-label">Customer GSTIN</div><div class="info-value">33AAACE3882D1ZZ</div></div>
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<div class="info-row"><div class="info-label">Customer Address</div><div class="info-value">State Highway 48, Vallam Industrial Corridor, Vallakottai Chennai, Tamil Nadu - 631604</div></div>
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</div>
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<div class="info-section">
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<div class="info-row"><div class="info-label">Dealer</div><div class="info-value">${dealer?.dealerName || claimDetails?.dealerName || 'N/A'}</div></div>
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<div class="info-row"><div class="info-label">Store</div><div class="info-value">${dealer?.dealerName || claimDetails?.dealerName || 'N/A'}</div></div>
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<div class="info-row"><div class="info-label">Supplier GSTIN</div><div class="info-value">${dealer?.gstin || 'N/A'}</div></div>
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<br/>
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<div class="info-row"><div class="info-label">POS</div><div class="info-value">${invoice.placeOfSupply || dealer?.state || 'Test State'}</div></div>
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<div class="info-row"><div class="info-label">Claim Request Number</div><div class="info-value">${request.requestNumber || 'N/A'}</div></div>
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<div class="info-row"><div class="info-label">Claim Invoice No.</div><div class="info-value">${invoice.invoiceNumber || 'N/A'}</div></div>
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<div class="info-row"><div class="info-label">Claim Invoice Date</div><div class="info-value">${invoice.invoiceDate ? dayjs(invoice.invoiceDate).format('DD-MM-YYYY') : dayjs().format('DD-MM-YYYY')}</div></div>
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<div class="info-row"><div class="info-label">Last Approval Date</div><div class="info-value">${invoice.generatedAt ? dayjs(invoice.generatedAt).format('DD-MM-YYYY') : dayjs().format('DD-MM-YYYY')}</div></div>
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</div>
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</div>
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<table>
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<thead>
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<tr>
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<th>Part</th>
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<th>Description</th>
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${!isNonGst ? '<th>HSN/SAC</th>' : ''}
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<th>${isNonGst ? 'Amount' : 'Base Amount'}</th>
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<th>Disc</th>
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<th>UOM</th>
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${!isNonGst ? '<th>Taxable Value</th>' : ''}
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${!isNonGst ? `
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<th>IGST %</th>
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<th>IGST</th>
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<th>CGST %</th>
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<th>CGST</th>
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<th>SGST %</th>
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<th>SGST</th>
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` : ''}
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<th>Total</th>
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</tr>
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</thead>
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<tbody>
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${tableRows}
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</tbody>
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</table>
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<div class="totals">
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<div class="totals-row"><span>${isNonGst ? 'TOTAL AMOUNT' : 'TAXABLE TOTAL'}:</span><span>${totalTaxable.toFixed(2)}</span></div>
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${!isNonGst ? `<div class="totals-row"><span>TOTAL TAX:</span><span>${totalTax.toFixed(2)}</span></div>` : ''}
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<div class="totals-row grand-total"><span>GRAND TOTAL:</span><span>${grandTotal.toFixed(2)}</span></div>
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</div>
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<div class="words">
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<div><strong>TOTAL VALUE IN WORDS:</strong> Rupees ${totalValueInWords}</div>
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${!isNonGst ? `<div><strong>TOTAL TAX IN WORDS:</strong> Rupees ${totalTaxInWords}</div>` : ''}
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</div>
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<div class="footer">
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<p>For ${dealer?.name || 'Authorised Dealer'}</p>
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<div class="signature">Authorised signatory</div>
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</div>
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</body>
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</html>
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`;
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}
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}
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export const pdfService = new PdfService();
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