99 lines
3.2 KiB
JavaScript
99 lines
3.2 KiB
JavaScript
import { NextResponse } from 'next/server';
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import { getProjectPath } from '@/lib/db/base';
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import { importImagesFromDirectories } from '@/lib/services/images';
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import fs from 'fs/promises';
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import path from 'path';
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import { savePdfAsImages } from '@/lib/util/file';
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// PDF 转图片并导入
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export async function POST(request, { params }) {
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let tempPdfPath = null;
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let tempImagesDir = null;
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try {
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const { projectId } = params;
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const formData = await request.formData();
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const pdfFile = formData.get('file');
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if (!pdfFile) {
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return NextResponse.json({ error: '请选择 PDF 文件' }, { status: 400 });
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}
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if (!pdfFile.name.toLowerCase().endsWith('.pdf')) {
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return NextResponse.json({ error: '只支持 PDF 文件' }, { status: 400 });
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}
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const projectPath = await getProjectPath(projectId);
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const tempDir = path.join(projectPath, 'temp');
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await fs.mkdir(tempDir, { recursive: true });
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// 1. 保存 PDF 到临时目录
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tempPdfPath = path.join(tempDir, `temp_${Date.now()}_${pdfFile.name}`);
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const pdfBuffer = Buffer.from(await pdfFile.arrayBuffer());
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await fs.writeFile(tempPdfPath, pdfBuffer);
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// 2. 创建临时图片目录
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tempImagesDir = path.join(tempDir, `pdf_images_${Date.now()}`);
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await fs.mkdir(tempImagesDir, { recursive: true });
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// 3. 调用 pdf2md-js 转换 PDF 为图片
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console.log('开始转换 PDF 为图片...');
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const imagePaths = await savePdfAsImages(tempPdfPath, tempImagesDir, 3);
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console.log('PDF 转换完成，生成图片数量:', imagePaths.length);
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if (!imagePaths || imagePaths.length === 0) {
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throw new Error('PDF 转换失败，未生成图片');
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}
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// 4. 直接调用服务层导入图片
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const importResult = await importImagesFromDirectories(projectId, [tempImagesDir]);
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// 5. 清理临时文件
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try {
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if (tempPdfPath) {
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await fs.unlink(tempPdfPath);
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}
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if (tempImagesDir) {
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const tempImages = await fs.readdir(tempImagesDir);
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for (const img of tempImages) {
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await fs.unlink(path.join(tempImagesDir, img));
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}
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await fs.rmdir(tempImagesDir);
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}
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const tempDirContents = await fs.readdir(tempDir);
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if (tempDirContents.length === 0) {
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await fs.rmdir(tempDir);
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}
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} catch (cleanupErr) {
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console.warn('清理临时文件失败:', cleanupErr);
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}
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return NextResponse.json({
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success: true,
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count: importResult.count,
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images: importResult.images,
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pdfName: pdfFile.name
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});
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} catch (error) {
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console.error('Failed to convert PDF:', error);
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// 清理临时文件
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try {
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if (tempPdfPath) {
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await fs.unlink(tempPdfPath).catch(() => {});
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}
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if (tempImagesDir) {
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const tempImages = await fs.readdir(tempImagesDir).catch(() => []);
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for (const img of tempImages) {
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await fs.unlink(path.join(tempImagesDir, img)).catch(() => {});
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}
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await fs.rmdir(tempImagesDir).catch(() => {});
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}
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} catch (cleanupErr) {
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console.warn('清理临时文件失败:', cleanupErr);
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}
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return NextResponse.json({ error: error.message || 'Failed to convert PDF' }, { status: 500 });
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}
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}
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