修复问题2

public/js/main.js

@@ -465,10 +465,12 @@ document.addEventListener('DOMContentLoaded', () => {
                 showTranscodePhase();
             }, 600);
         } else if (status === 'transcoding') {
+            hasDownloadCompleted = true;
+            if (!isStreamActive) {
                 if (transcodingOverlay) transcodingOverlay.classList.remove('hidden');
                 if (videoPlayer) videoPlayer.classList.add('hidden');
-            hasDownloadCompleted = true;
                 showTranscodePhase();
+            }
             const percent = Math.min(Math.max(Math.round(progress.percent || 0), 0), 100);
             updateTranscodeProgressBar(percent);
             transcodeProgressText.textContent = `${percent}%`;
@@ -482,9 +484,11 @@ document.addEventListener('DOMContentLoaded', () => {
                 statTime.textContent = progress.timemark ? `${progress.timemark}` : '';
             }
         } else if (status === 'finished') {
-            if (transcodingOverlay) transcodingOverlay.classList.remove('hidden');
             hasDownloadCompleted = true;
+            if (!isStreamActive) {
+                if (transcodingOverlay) transcodingOverlay.classList.remove('hidden');
                 showTranscodePhase();
+            }
             updateTranscodeProgressBar(100);
             transcodeProgressText.textContent = '100%';
             transcodeProgressFill.style.width = '100%';
@@ -1241,6 +1245,7 @@ document.addEventListener('DOMContentLoaded', () => {
         stopPolling();
         resetPhases();
         handleProgress({ status: 'downloading', percent: 0, downloadedBytes: 0, totalBytes: 0 });
+        startPolling();
         seekOffset = 0;
         videoDuration = 0;
         isStreamActive = false;
@@ -1300,6 +1305,7 @@ document.addEventListener('DOMContentLoaded', () => {
             videoPlayer.pause();
             videoPlayer.removeAttribute('src');
             videoPlayer.load();
+            stopPolling();
             hideSeekBar();
             hideCustomControls();
             resetSubtitleTracks();
@@ -1329,6 +1335,35 @@ document.addEventListener('DOMContentLoaded', () => {
         }
     };
 
+    const pollProgress = async () => {
+        if (!currentVideoKey) return;
+        try {
+            const res = await fetch(`/api/progress?key=${encodeURIComponent(currentVideoKey)}`);
+            if (!res.ok) return;
+            const data = await res.json();
+            if (data?.progress) {
+                handleProgress(data.progress);
+                if (typeof data.progress.duration === 'number' && data.progress.duration > 0) {
+                    videoDuration = data.progress.duration;
+                    if (seekTotalTime) seekTotalTime.textContent = formatTime(videoDuration);
+                }
+                if (['finished', 'failed', 'cancelled'].includes(data.progress.status)) {
+                    stopPolling();
+                }
+            }
+        } catch (error) {
+            console.error('Progress polling failed:', error);
+        }
+    };
+
+    const startPolling = () => {
+        stopPolling();
+        currentPollInterval = setInterval(() => {
+            pollProgress();
+        }, 500);
+        pollProgress();
+    };
+
     const playMp4Stream = (url) => {
         transcodingOverlay.classList.add('hidden');
         videoPlayer.classList.remove('hidden');

server.js

@@ -803,6 +803,22 @@ app.post('/api/stop-transcode', (req, res) => {
     }
 });
 
+app.get('/api/progress', (req, res) => {
+    try {
+        const key = typeof req.query.key === 'string' ? req.query.key.trim() : '';
+        if (!key) {
+            return res.status(400).json({ error: 'Video key is required' });
+        }
+
+        const progressKey = getProgressKey(key);
+        const progress = progressMap[progressKey] || null;
+        res.json({ progress });
+    } catch (error) {
+        console.error('Error fetching progress:', error);
+        res.status(500).json({ error: 'Failed to fetch progress', detail: error.message });
+    }
+});
+
 app.get('/api/stream', async (req, res) => {
     const bucket = req.query.bucket;
     const key = req.query.key;