450 lines
18 KiB
TypeScript
450 lines
18 KiB
TypeScript
import PDFDocument from 'pdfkit'
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import crypto from 'crypto'
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import { getChineseFont } from './font.js'
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const HMAC_SECRET = process.env.HMAC_SECRET || 'newapi-dashboard-default-secret-key-change-in-production'
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const DASHBOARD_URL = process.env.DASHBOARD_URL || 'https://www.lamclod.cn'
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interface BillingReportData {
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siteName: string
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siteUrl: string
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userId: number
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username: string
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group: string
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startDate: string
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endDate: string
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totalQuota: number
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totalRequests: number
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modelSummary: { model: string; quota: number; count: number }[]
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topups: {
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create_time: number
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amount: number
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money: number
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payment_method: string
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status: string
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trade_no: string
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}[]
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logs: {
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created_at: number
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type: number
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model_name: string
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token_name: string
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group: string
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is_stream: boolean
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quota: number
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prompt_tokens: number
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completion_tokens: number
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use_time: number
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ip: string
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request_id: string
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other: string
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}[]
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}
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export function generateHmacSignature(data: {
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userId: number; startDate: string; endDate: string;
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totalQuota: number; totalRecords: number; generatedAt: string;
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}): string {
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const signStr = `${data.userId}|${data.startDate}|${data.endDate}|${data.totalQuota}|${data.totalRecords}|${data.generatedAt}`
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return crypto.createHmac('sha256', HMAC_SECRET).update(signStr).digest('hex')
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}
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export function verifyHmacSignature(data: {
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userId: number; startDate: string; endDate: string;
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totalQuota: number; totalRecords: number; generatedAt: string; signature: string;
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}): boolean {
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const expected = generateHmacSignature(data)
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return crypto.timingSafeEqual(Buffer.from(expected), Buffer.from(data.signature))
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}
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function fmtTime(ts: number): string {
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return new Date(ts * 1000).toLocaleString('zh-CN', {
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timeZone: 'Asia/Shanghai', year: 'numeric', month: '2-digit', day: '2-digit',
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hour: '2-digit', minute: '2-digit', second: '2-digit', hour12: false,
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})
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}
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function q2usd(q: number, d = 2): string { return (q / 500000).toFixed(d) }
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function parseOther(other: string | any): any {
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if (!other) return {}
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if (typeof other === 'object') return other
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try { return JSON.parse(other) } catch { return {} }
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}
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const BLUE = '#1a4b8c'
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const BLUE_LIGHT = '#e9eff8'
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const BLUE_MID = '#3a7bd5'
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const GRAY = '#666666'
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const GRAY_LIGHT = '#f6f7f9'
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const BLACK = '#1a1a1a'
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const MARGIN = 50
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const PAGE_W = 595.28 // A4
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const CONTENT_W = PAGE_W - MARGIN * 2
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// Draw watermark on existing page via switchToPage (final pass only)
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function drawWatermarkOnPage(doc: PDFKit.PDFDocument, text: string) {
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doc.save()
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doc.opacity(0.03)
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doc.font(getChineseFont()).fontSize(9).fillColor('#999999')
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const label = `${text} ${text} ${text}`
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for (let row = 0; row < 6; row++) {
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doc.text(label, MARGIN, 120 + row * 100, { width: CONTENT_W, align: 'center', lineBreak: false })
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}
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doc.restore()
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}
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function hline(doc: PDFKit.PDFDocument, y: number, color = '#dddddd') {
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doc.save().moveTo(MARGIN, y).lineTo(MARGIN + CONTENT_W, y).strokeColor(color).lineWidth(0.5).stroke().restore()
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}
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function rect(doc: PDFKit.PDFDocument, x: number, y: number, w: number, h: number, color: string) {
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doc.save().rect(x, y, w, h).fill(color).restore()
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}
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function footer(doc: PDFKit.PDFDocument, site: string) {
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hline(doc, 778, '#cccccc')
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doc.font(getChineseFont()).fontSize(6.5).fillColor('#aaaaaa')
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doc.text(`${site} - API 使用账单报告`, MARGIN, 782, { width: CONTENT_W * 0.6, lineBreak: false })
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}
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export function generateBillingPDF(data: BillingReportData): Promise<Buffer> {
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return new Promise((resolve, reject) => {
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const doc = new PDFDocument({ size: 'A4', margin: MARGIN, bufferPages: true })
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const chunks: Buffer[] = []
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doc.on('data', (c: Buffer) => chunks.push(c))
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doc.on('end', () => resolve(Buffer.concat(chunks)))
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doc.on('error', reject)
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// Register Chinese font as default
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doc.font(getChineseFont())
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const now = new Date()
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const generatedAt = now.toISOString()
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const generatedLocal = now.toLocaleString('zh-CN', { timeZone: 'Asia/Shanghai', hour12: false })
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const reportId = 'RPT-' + crypto.createHash('md5').update(`${data.userId}-${generatedAt}`).digest('hex').substring(0, 12).toUpperCase()
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const totalUsd = q2usd(data.totalQuota)
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const days = Math.max(1, Math.ceil((new Date(data.endDate).getTime() - new Date(data.startDate).getTime()) / 86400000))
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// ===== PAGE 1: COVER =====
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rect(doc, 0, 0, PAGE_W, 100, BLUE)
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doc.fontSize(22).fillColor('#ffffff').text(data.siteName, MARGIN, 28, { width: CONTENT_W, align: 'center' })
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doc.fontSize(11).fillColor('#c0d0e8').text('API 使用账单报告', MARGIN, 58, { width: CONTENT_W, align: 'center' })
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doc.fontSize(7.5).fillColor('#8fabc8').text(reportId, MARGIN, 78, { width: CONTENT_W, align: 'center' })
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// Report info section
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let y = 120
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doc.fontSize(12).fillColor(BLUE).text('报告信息', MARGIN, y)
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hline(doc, y + 18, BLUE)
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y += 28
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const info: [string, string][] = [
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['报告周期', `${data.startDate} ~ ${data.endDate} (${days} 天)`],
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['用户 ID', String(data.userId)],
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['用户名', data.username],
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['用户组', data.group],
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['站点地址', data.siteUrl],
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['生成时间', generatedLocal],
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['报告编号', reportId],
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]
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for (const [k, v] of info) {
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doc.fontSize(9).fillColor(GRAY).text(k, MARGIN + 10, y, { width: 100, lineBreak: false })
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doc.fontSize(9).fillColor(BLACK).text(v, MARGIN + 120, y, { width: CONTENT_W - 130, lineBreak: false })
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y += 18
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}
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// Summary boxes
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y += 15
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doc.fontSize(12).fillColor(BLUE).text('概览', MARGIN, y)
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hline(doc, y + 18, BLUE)
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y += 28
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const boxW = (CONTENT_W - 20) / 3
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const boxes = [
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{ title: '总消耗', val: `$ ${totalUsd}`, sub: `${data.totalQuota.toLocaleString()} 额度`, accent: BLUE },
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{ title: '总请求数', val: data.totalRequests.toLocaleString(), sub: `${data.modelSummary.length} 个模型`, accent: '#0a7c50' },
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{ title: '平均单价', val: `$ ${data.totalRequests > 0 ? q2usd(Math.round(data.totalQuota / data.totalRequests), 4) : '0'}`, sub: `共 ${days} 天`, accent: '#b45309' },
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]
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for (let i = 0; i < 3; i++) {
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const bx = MARGIN + i * (boxW + 10)
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rect(doc, bx, y, boxW, 60, GRAY_LIGHT)
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rect(doc, bx, y, 3, 60, boxes[i].accent)
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doc.fontSize(7.5).fillColor(GRAY).text(boxes[i].title, bx + 12, y + 8, { width: boxW - 20, lineBreak: false })
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doc.fontSize(15).fillColor(boxes[i].accent).text(boxes[i].val, bx + 12, y + 22, { width: boxW - 20, lineBreak: false })
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doc.fontSize(7).fillColor('#aaaaaa').text(boxes[i].sub, bx + 12, y + 44, { width: boxW - 20, lineBreak: false })
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}
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// Disclaimer
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y += 80
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hline(doc, y)
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y += 8
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doc.fontSize(7).fillColor('#aaaaaa')
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doc.text('本报告由系统自动生成，包含 HMAC-SHA256 数字签名用于完整性验证。', MARGIN, y, { width: CONTENT_W })
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doc.text(`验证接口: POST ${DASHBOARD_URL}/api/billing/verify`, MARGIN, y + 12, { width: CONTENT_W })
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footer(doc, data.siteName)
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// ===== PAGE 2: FINANCIAL SUMMARY =====
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doc.addPage()
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rect(doc, MARGIN, MARGIN, CONTENT_W, 25, BLUE)
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doc.fontSize(11).fillColor('#ffffff').text('财务汇总 - 按模型消耗统计', MARGIN + 12, MARGIN + 7)
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y = MARGIN + 40
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// Total line
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rect(doc, MARGIN, y, CONTENT_W, 46, BLUE_LIGHT)
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doc.fontSize(9).fillColor(BLUE).text('总消耗:', MARGIN + 10, y + 6)
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doc.fontSize(14).fillColor(BLUE).text(`$ ${totalUsd} USD`, MARGIN + 10, y + 17, { continued: false })
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doc.fontSize(7.5).fillColor(GRAY).text(
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`${data.totalQuota.toLocaleString()} 额度 | ${data.totalRequests.toLocaleString()} 次请求`,
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MARGIN + 10, y + 36, { width: CONTENT_W - 20, lineBreak: false }
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)
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y += 56
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// Model table header
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const mc = { n: MARGIN + 5, m: MARGIN + 35, req: MARGIN + 215, quota: MARGIN + 290, usd: MARGIN + 370, pct: MARGIN + 430 }
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rect(doc, MARGIN, y, CONTENT_W, 16, BLUE)
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doc.fontSize(7).fillColor('#ffffff')
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doc.text('#', mc.n, y + 4, { width: 25, lineBreak: false })
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doc.text('模型', mc.m, y + 4, { width: 175, lineBreak: false })
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doc.text('请求数', mc.req, y + 4, { width: 70, lineBreak: false })
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doc.text('额度', mc.quota, y + 4, { width: 75, lineBreak: false })
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doc.text('费用 (USD)', mc.usd, y + 4, { width: 55, lineBreak: false })
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doc.text('占比', mc.pct, y + 4, { width: 60, lineBreak: false })
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y += 18
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for (let i = 0; i < data.modelSummary.length; i++) {
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if (y > 740) {
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footer(doc, data.siteName)
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doc.addPage()
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y = MARGIN + 10
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}
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const m = data.modelSummary[i]
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const pct = data.totalQuota > 0 ? (m.quota / data.totalQuota * 100) : 0
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if (i % 2 === 0) rect(doc, MARGIN, y - 1, CONTENT_W, 14, GRAY_LIGHT)
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doc.fontSize(6.5).fillColor(BLACK)
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doc.text(String(i + 1), mc.n, y + 2, { width: 25, lineBreak: false })
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doc.text(m.model, mc.m, y + 2, { width: 175, lineBreak: false })
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doc.text(m.count.toLocaleString(), mc.req, y + 2, { width: 70, lineBreak: false })
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doc.text(m.quota.toLocaleString(), mc.quota, y + 2, { width: 75, lineBreak: false })
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doc.text(q2usd(m.quota), mc.usd, y + 2, { width: 55, lineBreak: false })
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const barW = 40
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rect(doc, mc.pct, y + 1, barW, 8, '#e0e0e0')
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rect(doc, mc.pct, y + 1, Math.max(1, barW * pct / 100), 8, BLUE_MID)
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doc.fontSize(5.5).fillColor(GRAY).text(`${pct.toFixed(1)}%`, mc.pct + barW + 3, y + 2, { width: 25, lineBreak: false })
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y += 14
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}
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// Total row
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hline(doc, y, BLUE)
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y += 4
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doc.fontSize(7).fillColor(BLUE)
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doc.text('合计', mc.m, y, { width: 175, lineBreak: false })
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doc.text(data.totalRequests.toLocaleString(), mc.req, y, { width: 70, lineBreak: false })
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doc.text(data.totalQuota.toLocaleString(), mc.quota, y, { width: 75, lineBreak: false })
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doc.text(`$ ${totalUsd}`, mc.usd, y, { width: 55, lineBreak: false })
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doc.text('100%', mc.pct, y, { width: 60, lineBreak: false })
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footer(doc, data.siteName)
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// ===== TOPUP RECORDS =====
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if (data.topups.length > 0) {
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doc.addPage()
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rect(doc, MARGIN, MARGIN, CONTENT_W, 25, BLUE)
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doc.fontSize(11).fillColor('#ffffff').text(`充值记录 (共 ${data.topups.length.toLocaleString()} 条)`, MARGIN + 12, MARGIN + 7)
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y = MARGIN + 35
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const successTopups = data.topups.filter(t => t.status === 'success')
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const totalTopupAmount = successTopups.reduce((s, t) => s + (t.amount || 0), 0)
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const totalTopupMoney = successTopups.reduce((s, t) => s + (t.money || 0), 0)
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rect(doc, MARGIN, y, CONTENT_W, 22, BLUE_LIGHT)
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doc.fontSize(8).fillColor(BLUE).text(
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`充值成功: $ ${totalTopupAmount.toFixed(2)} USD | ¥ ${totalTopupMoney.toFixed(2)} CNY | ${successTopups.length} 笔交易`,
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MARGIN + 10, y + 6, { width: CONTENT_W - 20, lineBreak: false }
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)
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y += 30
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const tc = {
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time: MARGIN + 5,
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amount: MARGIN + 110,
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money: MARGIN + 185,
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method: MARGIN + 260,
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status: MARGIN + 320,
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trade: MARGIN + 360,
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}
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function drawTopupHeader() {
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rect(doc, MARGIN, y, CONTENT_W, 16, BLUE)
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doc.fontSize(7).fillColor('#ffffff')
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doc.text('时间', tc.time, y + 4, { width: 100, lineBreak: false })
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doc.text('充值金额 (USD)', tc.amount, y + 4, { width: 70, lineBreak: false })
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doc.text('支付金额 (CNY)', tc.money, y + 4, { width: 70, lineBreak: false })
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doc.text('支付方式', tc.method, y + 4, { width: 55, lineBreak: false })
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doc.text('状态', tc.status, y + 4, { width: 35, lineBreak: false })
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doc.text('订单号', tc.trade, y + 4, { width: 135, lineBreak: false })
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y += 18
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}
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drawTopupHeader()
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for (let i = 0; i < data.topups.length; i++) {
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if (y > 760) {
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footer(doc, data.siteName)
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doc.addPage()
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y = MARGIN + 5
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drawTopupHeader()
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}
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const t = data.topups[i]
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if (i % 2 === 0) rect(doc, MARGIN, y - 1, CONTENT_W, 13, GRAY_LIGHT)
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doc.fontSize(6.5).fillColor(BLACK)
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doc.text(fmtTime(t.create_time), tc.time, y + 2, { width: 100, lineBreak: false })
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doc.text(`$ ${(t.amount || 0).toFixed(2)}`, tc.amount, y + 2, { width: 70, lineBreak: false })
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doc.text(`¥ ${(t.money || 0).toFixed(2)}`, tc.money, y + 2, { width: 70, lineBreak: false })
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doc.text(t.payment_method || '-', tc.method, y + 2, { width: 55, lineBreak: false })
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const statusMap: Record<string, string> = { success: '成功', pending: '待支付', expired: '已过期' }
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doc.text(statusMap[t.status] || t.status || '-', tc.status, y + 2, { width: 35, lineBreak: false })
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doc.text(t.trade_no || '-', tc.trade, y + 2, { width: 135, lineBreak: false })
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y += 13
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}
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footer(doc, data.siteName)
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}
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// ===== DETAIL RECORDS =====
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doc.addPage()
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rect(doc, MARGIN, MARGIN, CONTENT_W, 25, BLUE)
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doc.fontSize(11).fillColor('#ffffff').text(`调用明细 (共 ${data.logs.length.toLocaleString()} 条)`, MARGIN + 12, MARGIN + 7)
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y = MARGIN + 35
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// Column layout: 时间 | 令牌 | 分组 | 类型 | 模型 | 流式 | 用时/首字 | 输入(命中/创建) | 输出 | 花费 | 详情
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const typeMap: Record<number, string> = { 1: '充值', 2: '消费', 3: '管理', 4: '系统' }
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const dc = [
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{ x: MARGIN + 2, w: 68, label: '时间' },
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{ x: MARGIN + 70, w: 34, label: '令牌' },
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{ x: MARGIN + 104, w: 28, label: '分组' },
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{ x: MARGIN + 132, w: 22, label: '类型' },
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{ x: MARGIN + 154, w: 68, label: '模型' },
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{ x: MARGIN + 222, w: 18, label: '流式' },
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{ x: MARGIN + 240, w: 40, label: '用时/首字' },
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{ x: MARGIN + 280, w: 58, label: '输入(命中/创建)' },
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{ x: MARGIN + 338, w: 28, label: '输出' },
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{ x: MARGIN + 366, w: 36, label: '花费' },
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{ x: MARGIN + 402, w: 93, label: '详情' },
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]
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function drawDetailHeader() {
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rect(doc, MARGIN, y, CONTENT_W, 14, BLUE)
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doc.fontSize(4.5).fillColor('#ffffff')
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for (const c of dc) doc.text(c.label, c.x, y + 3, { width: c.w, lineBreak: false })
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y += 16
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}
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drawDetailHeader()
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for (let i = 0; i < data.logs.length; i++) {
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if (y > 760) {
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footer(doc, data.siteName)
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doc.addPage()
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y = MARGIN + 5
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drawDetailHeader()
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}
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const log = data.logs[i]
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const other = parseOther(log.other)
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const cacheHit = other.cache_tokens || 0
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const cacheCreate = other.cache_creation_tokens || 0
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const frt = other.frt || 0
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if (i % 2 === 0) rect(doc, MARGIN, y - 1, CONTENT_W, 12, GRAY_LIGHT)
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doc.fontSize(4.5).fillColor(BLACK)
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doc.text(fmtTime(log.created_at), dc[0].x, y + 1, { width: dc[0].w, lineBreak: false })
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doc.text(log.token_name || '-', dc[1].x, y + 1, { width: dc[1].w, lineBreak: false })
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doc.text(log.group || '-', dc[2].x, y + 1, { width: dc[2].w, lineBreak: false })
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doc.text(typeMap[log.type] || String(log.type || '-'), dc[3].x, y + 1, { width: dc[3].w, lineBreak: false })
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doc.text(log.model_name || '-', dc[4].x, y + 1, { width: dc[4].w, lineBreak: false })
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doc.text(log.is_stream ? '是' : '否', dc[5].x, y + 1, { width: dc[5].w, lineBreak: false })
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const timing = `${log.use_time || 0}s${frt ? '/' + Math.round(frt) + 'ms' : ''}`
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doc.text(timing, dc[6].x, y + 1, { width: dc[6].w, lineBreak: false })
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// 输入(命中/创建): e.g. "1234(500/100)"
|
|
let inputStr = String(log.prompt_tokens || 0)
|
|
if (cacheHit > 0 || cacheCreate > 0) {
|
|
inputStr += `(${cacheHit}/${cacheCreate})`
|
|
}
|
|
doc.text(inputStr, dc[7].x, y + 1, { width: dc[7].w, lineBreak: false })
|
|
doc.text(String(log.completion_tokens || 0), dc[8].x, y + 1, { width: dc[8].w, lineBreak: false })
|
|
doc.text('$' + q2usd(log.quota || 0, 4), dc[9].x, y + 1, { width: dc[9].w, lineBreak: false })
|
|
doc.text(log.request_id || '-', dc[10].x, y + 1, { width: dc[10].w, lineBreak: false })
|
|
y += 12
|
|
}
|
|
|
|
footer(doc, data.siteName)
|
|
|
|
// ===== LAST PAGE: SIGNATURE =====
|
|
doc.addPage()
|
|
|
|
rect(doc, MARGIN, MARGIN, CONTENT_W, 25, BLUE)
|
|
doc.fontSize(11).fillColor('#ffffff').text('报告验证与数字签名', MARGIN + 12, MARGIN + 7)
|
|
|
|
y = MARGIN + 40
|
|
|
|
const signature = generateHmacSignature({
|
|
userId: data.userId, startDate: data.startDate, endDate: data.endDate,
|
|
totalQuota: data.totalQuota, totalRecords: data.logs.length, generatedAt,
|
|
})
|
|
|
|
rect(doc, MARGIN, y, CONTENT_W, 130, GRAY_LIGHT)
|
|
y += 10
|
|
const sigRows: [string, string][] = [
|
|
['报告编号', reportId],
|
|
['生成时间', generatedLocal],
|
|
['记录总数', data.logs.length.toLocaleString()],
|
|
['总额度', `${data.totalQuota.toLocaleString()} ( $ ${totalUsd} USD )`],
|
|
['算法', 'HMAC-SHA256'],
|
|
['签名', signature],
|
|
]
|
|
for (const [k, v] of sigRows) {
|
|
doc.fontSize(8).fillColor(GRAY).text(k, MARGIN + 12, y, { width: 100, lineBreak: false })
|
|
const isSig = k === '签名'
|
|
doc.fontSize(isSig ? 6.5 : 8).fillColor(isSig ? BLUE : BLACK)
|
|
.text(v, MARGIN + 120, y, { width: CONTENT_W - 140, lineBreak: false })
|
|
y += 18
|
|
}
|
|
|
|
y += 20
|
|
doc.fontSize(9).fillColor(BLUE).text('验证说明', MARGIN, y)
|
|
hline(doc, y + 14, BLUE)
|
|
y += 22
|
|
|
|
const instructions = [
|
|
'本报告由系统自动生成，包含数字签名用于完整性验证。',
|
|
'验证方式: 将签名数据提交至 POST /api/billing/verify 接口。',
|
|
'任何对报告数据的修改都将导致签名验证失败。',
|
|
'本文件仅供财务审计用途。',
|
|
]
|
|
for (let i = 0; i < instructions.length; i++) {
|
|
doc.fontSize(7.5).fillColor(GRAY).text(`${i + 1}. ${instructions[i]}`, MARGIN + 5, y, { width: CONTENT_W - 10 })
|
|
y += 14
|
|
}
|
|
|
|
y += 15
|
|
rect(doc, MARGIN, y, CONTENT_W, 25, '#fff7e0')
|
|
rect(doc, MARGIN, y, 3, 25, '#b45309')
|
|
doc.fontSize(7).fillColor('#b45309')
|
|
doc.text(`由 ${data.siteName} Dashboard 生成 | ${DASHBOARD_URL} | ${generatedLocal}`, MARGIN + 12, y + 8, { width: CONTENT_W - 20, lineBreak: false })
|
|
|
|
footer(doc, data.siteName)
|
|
|
|
// Final pass: draw watermarks + page numbers on all pages
|
|
const total = doc.bufferedPageRange().count
|
|
for (let i = 0; i < total; i++) {
|
|
doc.switchToPage(i)
|
|
drawWatermarkOnPage(doc, data.siteName)
|
|
doc.font(getChineseFont()).fontSize(6.5).fillColor('#aaaaaa')
|
|
doc.text(`${i + 1} / ${total}`, MARGIN + CONTENT_W - 50, 782, { width: 50, align: 'right', lineBreak: false })
|
|
}
|
|
|
|
doc.end()
|
|
})
|
|
}
|