519 lines
17 KiB
PHP
519 lines
17 KiB
PHP
<?php
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namespace app\Service;
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use app\Model\UsedCar;
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use app\Model\UsedCarPdfLog;
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use app\Model\User;
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use Mpdf\Mpdf;
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/**
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* PDF生成服务
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* 用于生成二手车相关的PDF文档
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*/
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class PdfService
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{
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/**
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* 语言映射
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*/
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private const LANGUAGES = [
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'zh' => '中文',
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'en' => '英语',
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'ru' => '俄语',
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'es' => '西班牙语',
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'fr' => '法语',
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];
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/**
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* 货币符号映射
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*/
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private const CURRENCIES = [
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'CNY' => '¥',
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'USD' => '$',
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'RUB' => '₽',
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'AED' => 'د.إ',
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'EUR' => '€',
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];
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/**
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* 生成二手车PDF
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*
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* @param int $usedCarId 二手车ID
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* @param int $userId 用户ID
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* @param float $price 价格（用于PDF显示）
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* @param string $lang 语言代码
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* @param string $currency 货币代码
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* @param string $tradeTerm 贸易条款
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* @return string PDF文件名
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* @throws \Exception
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*/
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public function generateUsedCarPdf(int $usedCarId, int $userId, float $price, string $lang = 'zh', string $currency = 'CNY', string $tradeTerm = ''): string
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{
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// 验证参数
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if (!isset(self::LANGUAGES[$lang])) {
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throw new \Exception('不支持的语言: ' . $lang);
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}
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if (!isset(self::CURRENCIES[$currency])) {
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throw new \Exception('不支持的货币: ' . $currency);
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}
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// 获取车辆信息
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$car = UsedCar::with('user')->findOrFail($usedCarId);
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// 检查权限
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if ($car->user_id !== $userId) {
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throw new \Exception('无权生成此车辆的PDF');
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}
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// 获取用户信息
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$user = $car->user ?? User::findOrFail($userId);
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// 准备PDF数据
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$pdfData = $this->preparePdfData($car, $price, $lang, $currency, $tradeTerm, $user);
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// 生成PDF
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$pdfFileName = $this->renderPdf($pdfData, $car, $user, $lang);
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// 更新车辆记录
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$car->pdf_src = $pdfFileName;
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$car->save();
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// 记录PDF生成日志
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UsedCarPdfLog::create([
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'user_id' => $userId,
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'used_car_id' => $usedCarId,
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'price_snapshot' => (int)($price * 100), // 转换为分
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'pdf_path' => $pdfFileName,
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]);
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// 清理临时文件
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$this->cleanupTempFiles();
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return $pdfFileName;
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}
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/**
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* 准备PDF数据
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*/
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private function preparePdfData(UsedCar $car, float $price, string $lang, string $currency, string $tradeTerm, User $user): array
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{
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// 获取字段翻译
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$field = $this->getFieldTranslations($lang);
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$field['currency'] = self::CURRENCIES[$currency];
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// 获取名片翻译
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$contactField = $this->getContactTranslations($lang);
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// 构建车辆名称
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$productName = trim(($car->crawl_brand ?? '') . ' ' . ($car->crawl_series ?? '') . ' ' . ($car->crawl_year ?? '') . '款 ' . ($car->crawl_title ?? $car->product_name));
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// 处理图片 - 下载到本地
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$images = [];
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$imageDir = runtime_path('pdf/images/');
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if (!is_dir($imageDir)) {
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mkdir($imageDir, 0755, true);
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}
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if (!empty($car->images)) {
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$imageUrls = explode(',', $car->images);
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$crawlService = new UsedCarCrawlService();
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$downloadedImages = $crawlService->downloadImages($imageUrls, $imageDir);
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foreach ($downloadedImages as $localPath) {
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if ($localPath && file_exists($localPath)) {
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$images[] = $localPath;
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}
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}
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}
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// 处理附件PDF
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$attachments = [];
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if (!empty($car->attachment)) {
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$attachmentData = json_decode($car->attachment, true);
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if (is_array($attachmentData)) {
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$attachmentDir = runtime_path('pdf/attachment/');
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if (!is_dir($attachmentDir)) {
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mkdir($attachmentDir, 0755, true);
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}
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foreach ($attachmentData as $attachment) {
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$src = $attachment['src'] ?? '';
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if (str_ends_with(strtolower($src), '.pdf')) {
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// 下载PDF附件
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$localPath = $this->downloadAttachment($src, $attachmentDir);
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if ($localPath && file_exists($localPath)) {
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$attachments[] = $localPath;
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}
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}
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}
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}
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}
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// 处理社交二维码
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$socialCode = '';
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if (!empty($user->social_code)) {
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$socialCodePath = $this->downloadSocialCode($user->social_code);
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if ($socialCodePath && file_exists($socialCodePath)) {
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$socialCode = $socialCodePath;
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}
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}
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return [
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'car' => [
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'product_name' => $productName,
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'price' => $price,
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'trade' => $tradeTerm,
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'plate_time' => $car->plate_time ?? '',
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'displacement' => $car->displacement ?? '',
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'mileage' => $car->mileage ?? 0,
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'power' => $car->power ?? '',
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'body_color' => $car->body_color ?? '',
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'condition_desc' => $car->condition_desc ?? '',
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'images' => $images,
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'attachment' => $attachments,
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'created_at' => $car->created_at ? $car->created_at->format('Y-m-d H:i:s') : '',
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],
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'user' => [
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'name' => $user->name ?? '',
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'name_en' => $user->name_en ?? $user->name ?? '',
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'email' => $user->email ?? '',
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'phone' => $user->phone ?? '',
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'whatsapp' => $user->whatsapp ?? '',
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'social' => !empty($user->social_code),
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'social_code' => $socialCode,
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],
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'field' => $field,
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'contact_field' => $contactField,
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'lang' => $lang,
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];
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}
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/**
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* 渲染PDF
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*/
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private function renderPdf(array $pdfData, UsedCar $car, User $user, string $lang): string
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{
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// 创建临时目录
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$tempDir = runtime_path('pdf/temp/');
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if (!is_dir($tempDir)) {
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mkdir($tempDir, 0755, true);
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}
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// 初始化mPDF
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$mpdf = new Mpdf([
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'mode' => 'utf-8',
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'format' => 'A4-L', // 横向
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'margin_top' => 10,
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'margin_bottom' => 10,
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'margin_left' => 10,
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'margin_right' => 10,
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'tempDir' => $tempDir,
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'default_font' => 'sun-exta',
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]);
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// 设置水印
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$watermarkText = $pdfData['user']['name_en'] ?? $pdfData['user']['name'];
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if (!empty($watermarkText)) {
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$mpdf->SetWatermarkText($watermarkText, 0.08);
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$mpdf->showWatermarkText = true;
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}
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// 渲染车辆详情页面
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ob_start();
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$carTpl = runtime_path('pdf/templates/usedCar.stub');
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extract([
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'car' => $pdfData['car'],
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'field' => $pdfData['field'],
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]);
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include $carTpl;
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$carHtml = ob_get_clean();
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$mpdf->WriteHTML($carHtml);
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// 追加附件PDF
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foreach ($pdfData['car']['attachment'] as $attachmentPdf) {
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$this->appendPdf($mpdf, $attachmentPdf);
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}
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// 添加名片页面
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$mpdf->AddPage();
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ob_start();
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$cardTpl = runtime_path('pdf/templates/contactCard.stub');
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extract([
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'user' => $pdfData['user'],
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'contactField' => $pdfData['contact_field'],
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]);
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include $cardTpl;
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$cardHtml = ob_get_clean();
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$mpdf->WriteHTML($cardHtml);
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// 生成PDF文件
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$pdfDir = runtime_path('pdf/');
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if (!is_dir($pdfDir)) {
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mkdir($pdfDir, 0755, true);
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}
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$pdfFileName = 'usedcar-' . $car->code . '-' . $car->id . '-' . $lang . '-' . substr(time(), -6) . '.pdf';
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$pdfPath = $pdfDir . '/' . $pdfFileName;
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$mpdf->Output($pdfPath, \Mpdf\Output\Destination::FILE);
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return $pdfFileName;
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}
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/**
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* 追加PDF到现有文档
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*/
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private function appendPdf(Mpdf $mpdf, string $pdfPath): void
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{
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if (!file_exists($pdfPath)) {
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return;
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}
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try {
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$pageCount = $mpdf->SetSourceFile($pdfPath);
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for ($i = 1; $i <= $pageCount; $i++) {
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$tplId = $mpdf->ImportPage($i);
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$size = $mpdf->getTemplateSize($tplId);
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$mpdf->AddPageByArray([
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'orientation' => $size['orientation'],
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'sheet-size' => [$size['width'], $size['height']]
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]);
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$mpdf->UseTemplate($tplId);
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}
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} catch (\Exception $e) {
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error_log('追加PDF失败: ' . $e->getMessage());
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}
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}
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/**
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* 下载附件
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*/
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private function downloadAttachment(string $url, string $saveDir): ?string
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{
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$filename = md5($url) . '.pdf';
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$savePath = $saveDir . $filename;
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if (file_exists($savePath)) {
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return $savePath;
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}
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try {
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$content = file_get_contents($url);
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if ($content !== false) {
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file_put_contents($savePath, $content);
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return $savePath;
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}
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} catch (\Exception $e) {
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error_log('下载附件失败: ' . $e->getMessage());
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}
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return null;
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}
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/**
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* 下载社交二维码
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*/
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private function downloadSocialCode(string $url): ?string
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{
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$saveDir = runtime_path('pdf/qrcode/');
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if (!is_dir($saveDir)) {
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mkdir($saveDir, 0755, true);
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}
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$filename = md5($url) . '.jpg';
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$savePath = $saveDir . $filename;
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if (file_exists($savePath)) {
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return $savePath;
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}
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try {
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$content = file_get_contents($url);
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if ($content !== false) {
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file_put_contents($savePath, $content);
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return $savePath;
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}
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} catch (\Exception $e) {
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error_log('下载二维码失败: ' . $e->getMessage());
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}
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return null;
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}
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/**
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* 清理临时文件
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*/
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private function cleanupTempFiles(): void
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{
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// 清理图片
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$imageDir = runtime_path('pdf/images/');
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if (is_dir($imageDir)) {
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array_map('unlink', glob($imageDir . '*.jpg') ?: []);
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array_map('unlink', glob($imageDir . '*.png') ?: []);
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}
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// 清理附件
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$attachmentDir = runtime_path('pdf/attachment/');
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if (is_dir($attachmentDir)) {
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array_map('unlink', glob($attachmentDir . '*.pdf') ?: []);
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}
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// 清理二维码
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$qrcodeDir = runtime_path('pdf/qrcode/');
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if (is_dir($qrcodeDir)) {
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array_map('unlink', glob($qrcodeDir . '*.jpg') ?: []);
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array_map('unlink', glob($qrcodeDir . '*.png') ?: []);
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}
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}
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/**
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* 获取字段翻译
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*/
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private function getFieldTranslations(string $lang): array
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{
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$translations = [
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'zh' => [
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'price' => '车价',
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'source_place' => '车源地',
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'plate_time' => '上牌时间',
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'displacement' => '排量',
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'mileage' => '里程',
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'power' => '马力',
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'body_color' => '车身颜色',
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'created_at' => '创建时间',
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'condition_desc' => '车况介绍',
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'images' => '产品图',
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'trade' => '贸易条款',
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],
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'en' => [
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'price' => 'Price',
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'source_place' => 'Vehicle Location',
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'plate_time' => 'Registration Date',
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'displacement' => 'Engine Displacement',
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'mileage' => 'Mileage',
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'power' => 'Horsepower',
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'body_color' => 'Body Color',
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'created_at' => 'Created At',
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'condition_desc' => 'Vehicle Condition',
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'images' => 'Product Image',
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'trade' => 'Trade Terms',
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],
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'ru' => [
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'price' => 'Цена',
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'source_place' => 'Местонахождение автомобиля',
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'plate_time' => 'Дата регистрации',
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'displacement' => 'Объём двигателя',
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'mileage' => 'Пробег',
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'power' => 'Мощность',
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'body_color' => 'Цвет кузова',
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'created_at' => 'Дата создания',
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'condition_desc' => 'Состояние автомобиля',
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'images' => 'Фотографии',
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'trade' => 'Условия торговли',
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],
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'es' => [
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'price' => 'Precio',
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'source_place' => 'Ubicación del vehículo',
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'plate_time' => 'Fecha de matriculación',
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'displacement' => 'Cilindrada',
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'mileage' => 'Kilometraje',
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'power' => 'Potencia',
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'body_color' => 'Color de la carrocería',
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'created_at' => 'Fecha de creación',
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'condition_desc' => 'Estado del vehículo',
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'images' => 'Imagen del producto',
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'trade' => 'Condiciones de comercio',
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],
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'fr' => [
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'price' => 'Prix',
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'source_place' => 'Emplacement du véhicule',
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'plate_time' => 'Date d\'immatriculation',
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'displacement' => 'Cylindrée',
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'mileage' => 'Kilométrage',
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'power' => 'Puissance',
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'body_color' => 'Couleur de la carrosserie',
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'created_at' => 'Date de création',
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'condition_desc' => 'État du véhicule',
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'images' => 'Image du produit',
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'trade' => 'Conditions commerciales',
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],
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];
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return $translations[$lang] ?? $translations['zh'];
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}
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/**
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* 获取名片翻译
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*/
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private function getContactTranslations(string $lang): array
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{
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$translations = [
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'zh' => [
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'title' => '联系人名片',
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'name' => '姓名',
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'email' => '邮箱',
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'phone' => '电话',
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'code' => '二维码',
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'left' => '扫码即可联系本人',
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'right' => '本资料随PDF自动生成',
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],
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'en' => [
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'title' => 'Contact Name Card',
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'name' => 'Name',
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'email' => 'Email',
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'phone' => 'Phone',
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'code' => 'QR Code',
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'left' => 'Scan the code to contact me',
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'right' => 'This information is automatically generated with the PDF',
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],
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'ru' => [
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'title' => 'Контактная карточка',
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'name' => 'Имя',
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'email' => 'Электронная почта',
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'phone' => 'Телефон',
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'code' => 'QR-код',
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'left' => 'Код позволяет связаться с самим собой.',
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'right' => 'Эта информация автоматически генерируется с помощью PDF',
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],
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'es' => [
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'title' => 'Tarjeta de visita de contacto',
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'name' => 'Nombre',
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'email' => 'Correo electrónico',
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'phone' => 'Teléfono',
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'code' => 'Código QR',
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'left' => 'Escanee el código para contactarme.',
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'right' => 'Esta información se genera automáticamente con PDF',
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],
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'fr' => [
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'title' => 'Carte de visite de contact',
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'name' => 'Nom',
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'email' => 'E-mail',
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'phone' => 'Téléphone',
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'code' => 'Code QR',
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'left' => 'Scannez le code pour me contacter',
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'right' => 'Ces informations sont générées automatiquement avec le PDF',
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],
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];
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return $translations[$lang] ?? $translations['zh'];
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}
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/**
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* 获取PDF文件路径
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*/
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public function getPdfPath(string $pdfFileName): string
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{
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return runtime_path('pdf/' . $pdfFileName);
|
|
}
|
|
|
|
/**
|
|
* 检查PDF文件是否存在
|
|
*/
|
|
public function pdfExists(string $pdfFileName): bool
|
|
{
|
|
return file_exists($this->getPdfPath($pdfFileName));
|
|
}
|
|
}
|