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import { ORDER_STATUS_LABELS } from '@dukang/shared-types';
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import ExcelJS from 'exceljs';
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import * as fs from 'fs';
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import * as path from 'path';
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import PDFDocument from 'pdfkit';
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const EXPORT_HEADERS = [
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'订单号',
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'下单时间',
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'状态',
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'商品',
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'规格',
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'数量',
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'实付',
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'好客权益',
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'收货人',
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'手机',
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'收货地址',
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] as const;
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export type OrderExportRow = {
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orderNo: string;
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createdAt: string;
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status: string;
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productName: string;
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productSpec: string;
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quantity: number;
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payAmount: number;
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benefitBrief: string;
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receiverName: string;
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receiverPhone: string;
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address: string;
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};
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function formatBenefitBrief(order: {
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benefitAmount?: { toString(): string } | number | null;
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benefitCoupon?: {
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totalAmount?: { toString(): string } | number;
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usedAmount?: { toString(): string } | number;
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balance?: { toString(): string } | number;
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} | null;
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}): string {
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const coupon = order.benefitCoupon;
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if (coupon) {
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return `总额¥${Number(coupon.totalAmount).toFixed(2)} / 已用¥${Number(coupon.usedAmount).toFixed(2)} / 余¥${Number(coupon.balance).toFixed(2)}`;
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}
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if (order.benefitAmount != null) return `¥${Number(order.benefitAmount).toFixed(2)}`;
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return '';
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}
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export function formatExportDateTime(value?: Date | null): string {
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if (!value) return '';
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return value.toISOString().slice(0, 19).replace('T', ' ');
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}
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export function mapOrderToExportRow(order: {
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orderNo: string;
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createdAt: Date;
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status: string;
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productName: string;
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productSpec: string;
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quantity: number;
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payAmount: { toString(): string } | number;
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benefitAmount?: { toString(): string } | number | null;
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receiverName: string;
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receiverPhone: string;
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receiverProvince: string;
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receiverCity: string;
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receiverDistrict: string;
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receiverAddress: string;
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benefitCoupon?: {
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totalAmount?: { toString(): string } | number;
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usedAmount?: { toString(): string } | number;
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balance?: { toString(): string } | number;
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} | null;
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deliveryType?: string;
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}): OrderExportRow {
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const isOnSite =
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order.deliveryType === 'ON_SITE_PICKUP' ||
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order.receiverAddress === '现场取货' ||
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order.receiverAddress === '现场提货' ||
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(order.receiverProvince === '现场' && order.receiverCity === '现场');
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const address = isOnSite
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? '现场取货'
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: `${order.receiverProvince}${order.receiverCity}${order.receiverDistrict}${order.receiverAddress}`;
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return {
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orderNo: order.orderNo,
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createdAt: formatExportDateTime(order.createdAt),
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status: ORDER_STATUS_LABELS[order.status] || order.status,
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productName: order.productName,
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productSpec: order.productSpec,
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quantity: order.quantity,
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payAmount: Number(order.payAmount),
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benefitBrief: formatBenefitBrief(order),
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receiverName: order.receiverName,
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receiverPhone: order.receiverPhone,
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address,
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};
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}
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export function rowToCells(row: OrderExportRow): string[] {
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return [
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row.orderNo,
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row.createdAt,
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row.status,
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row.productName,
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row.productSpec,
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String(row.quantity),
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row.payAmount.toFixed(2),
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row.benefitBrief,
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row.receiverName,
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row.receiverPhone,
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row.address,
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];
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}
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function resolvePdfFontPath(): string {
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const candidates = [
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process.env.EXPORT_PDF_FONT_PATH,
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path.join(process.cwd(), 'assets', 'fonts', 'NotoSansSC-Regular.otf'),
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path.join(process.cwd(), 'assets', 'fonts', 'simhei.ttf'),
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path.join(process.cwd(), 'assets', 'fonts', 'msyh.ttc'),
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path.join(process.cwd(), 'dist', 'assets', 'fonts', 'simhei.ttf'),
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'/usr/share/fonts/truetype/noto/NotoSansCJK-Regular.ttc',
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'/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc',
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'C:\\Windows\\Fonts\\simhei.ttf',
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'C:\\Windows\\Fonts\\msyh.ttc',
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].filter(Boolean) as string[];
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for (const candidate of candidates) {
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if (fs.existsSync(candidate)) return candidate;
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}
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throw new Error('未找到可用于 PDF 的中文字体，请将字体文件放到 server/dukang-api/assets/fonts/');
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}
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export async function buildOrdersXlsx(rows: OrderExportRow[]): Promise<Buffer> {
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const workbook = new ExcelJS.Workbook();
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const sheet = workbook.addWorksheet('订单');
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sheet.addRow([...EXPORT_HEADERS]);
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for (const row of rows) {
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sheet.addRow(rowToCells(row));
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}
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sheet.columns.forEach((col) => {
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col.width = 16;
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});
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sheet.getColumn(4).width = 22;
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sheet.getColumn(8).width = 36;
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sheet.getColumn(11).width = 36;
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const buffer = await workbook.xlsx.writeBuffer();
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return Buffer.from(buffer);
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}
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export async function buildOrdersPdf(rows: OrderExportRow[]): Promise<Buffer> {
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const fontPath = resolvePdfFontPath();
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const chunks: Buffer[] = [];
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return new Promise((resolve, reject) => {
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const doc = new PDFDocument({
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size: 'A4',
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layout: 'landscape',
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margin: 24,
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bufferPages: true,
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});
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doc.on('data', (chunk) => chunks.push(chunk as Buffer));
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doc.on('end', () => resolve(Buffer.concat(chunks)));
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doc.on('error', reject);
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doc.registerFont('zh', fontPath);
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doc.font('zh');
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const pageWidth = doc.page.width - doc.page.margins.left - doc.page.margins.right;
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const colWidths = [72, 78, 48, 88, 64, 32, 48, 110, 48, 72, 120];
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const scale = pageWidth / colWidths.reduce((sum, w) => sum + w, 0);
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const widths = colWidths.map((w) => w * scale);
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const rowHeight = 28;
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const fontSize = 7;
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let y = doc.page.margins.top;
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const drawRow = (cells: string[], isHeader = false) => {
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let x = doc.page.margins.left;
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const height = isHeader ? 24 : rowHeight;
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if (y + height > doc.page.height - doc.page.margins.bottom) {
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doc.addPage({ size: 'A4', layout: 'landscape', margin: 24 });
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y = doc.page.margins.top;
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}
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doc.fontSize(isHeader ? 8 : fontSize);
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cells.forEach((cell, index) => {
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doc.rect(x, y, widths[index], height).stroke('#dddddd');
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doc.text(cell || '', x + 2, y + 4, {
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width: widths[index] - 4,
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height: height - 6,
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lineBreak: true,
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});
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x += widths[index];
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});
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y += height;
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};
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drawRow([...EXPORT_HEADERS], true);
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for (const row of rows) {
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drawRow(rowToCells(row));
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}
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doc.end();
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});
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}
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export function buildExportFilename(format: 'xlsx' | 'pdf', count: number): string {
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const stamp = new Date().toISOString().slice(0, 10);
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return `订单导出_${stamp}_${count}条.${format}`;
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}
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