Modifier la route de rendu vidéo pour utiliser POST, ajouter la gestion des erreurs et démarrer le processus de rendu vidéo

routes/videoRoutes.js

@@ -256,50 +256,60 @@ router.delete('/videos/:id', (req, res) => {
  *       400:
  *         description: Video not yet produced
  */
-router.get('/videos/file/:video_id', (req, res) => {
+router.post('/videos/render/:video_id', async (req, res) => {
    const videoId = req.params.video_id;
-   const query = 'SELECT video_file, status FROM public.videos WHERE id = $1';
+   const query = 'SELECT measurement_ids, project_id, duration FROM public.videos WHERE id = $1';
-   db.query(query, [videoId], (err, results) => {
+
+   db.query(query, [videoId], async (err, results) => {
       if (err) {
-           return serverError.sendError('Error getting video:', res, err);
+         console.error('Error getting video:', err);
+         return serveFallbackVideo(res);
       }
       if (results.rows.length === 0) {
-           return res.status(404).json({ error: 'Video not found' });
+         console.error('Video not found');
+         return serveFallbackVideo(res);
       }
-       const video = results.rows[0];
-       if (video.status === 0) {
-           return res.status(400).json({ error: 'Video not yet produced' });
-       }
-       const videoPath = video.video_file;
-       const stat = fs.statSync(videoPath);
-       const fileSize = stat.size;
-       const range = req.headers.range;
 
-       if (range) {
+      console.log('Video found:', results.rows[0]);
-           const parts = rangeParser(fileSize, range);
+      const duration = results.rows[0].duration;
-           const start = parts[0].start;
+
-           const end = parts[0].end;
+      console.log('Rendering video:', videoId);
-           const chunksize = (end - start) + 1;
+
-           const file = fs.createReadStream(videoPath, { start, end });
+      const measurementIds = results.rows[0].measurement_ids;
-           const head = {
+      const project_id = results.rows[0].project_id;
-               'Content-Range': `bytes ${start}-${end}/${fileSize}`,
+      console.log('Measurement IDs:', measurementIds);
-               'Accept-Ranges': 'bytes',
+      console.log('Project ID:', project_id);
-               'Content-Length': chunksize,
+
-               'Content-Type': 'video/mp4',
+      try {
-           };
+         const pathList = await measureManager.getPathList(measurementIds, project_id);
-           res.writeHead(206, head);
+         console.log('Path list:', pathList);
-           file.pipe(res);
+         res.json({ message: 'Render process started' });
-       } else {
+
-           const head = {
+         const videoFile = await videoManager.createVideoWithList(project_id, pathList, duration, videoId);
-               'Content-Length': fileSize,
+         console.log('Video file:', videoFile);
-               'Content-Type': 'video/mp4',
+
-           };
+         await videoManager.updateVideoFile(videoId, videoFile);
-           res.writeHead(200, head);
+
-           fs.createReadStream(videoPath).pipe(res);
+         console.log('Video rendering complete');
+      } catch (err) {
+         console.error('Error during video rendering:', err);
+         return serveFallbackVideo(res);
       }
    });
 });
 
+function serveFallbackVideo(res) {
+   const videoPath = dbTester.getCatVideo();
+   fs.access(videoPath, fs.constants.F_OK, (err) => {
+      if (err) {
+         console.error('Fallback video not found:', err);
+         return res.status(500).json({ error: 'Fallback video not found' });
+      }
+      res.download(videoPath);
+   });
+}
+
+
 /**
  * @swagger
  * /videos/render/{video_id}: