fix(export): offline export nhan MIDI-only tracks qua midi cache - filter khong loai track khong co buffer

app/static/js/app.jsx

@@ -28023,12 +28023,12 @@ const App = () => {
       }
       exportTracks = [{ ...selTrack, buffer: clipBuf, startTime: 0, clips: [{ id: 'export_clip', buffer: clipBuf, startTime: 0, name: selTrack.name }] }];
     } else if (src === 'track_mix') {
-      const sel = tracks.filter(t => t.buffer && !t.muted);
+      const sel = tracks.filter(t => !t.muted && (t.buffer || (t.midiItems && t.midiItems.length > 0)));
       const selTrk = selectedTrackId ? sel.filter(t => t.id === selectedTrackId) : sel;
       if (selTrk.length === 0) { showToast("Track được chọn không có dữ liệu.", "warning"); return; }
       exportTracks = selTrk;
     } else {
-      exportTracks = tracks.filter(t => t.buffer && !t.muted);
+      exportTracks = tracks.filter(t => !t.muted && (t.buffer || (t.midiItems && t.midiItems.length > 0)));
     }
     if (exportTracks.length === 0) {
       showToast("Không tìm thấy dữ liệu âm thanh hợp lệ để xuất.", "warning");

app/static/js/app.precompiled.js

@@ -2116,7 +2116,7 @@ const triggerWavExport=async()=>{// Stop transport ngay khi bắt đầu export
 try{if(typeof stopAllPlayback==='function')stopAllPlayback();}catch(e){}try{if(window.SonicSF&&window.SonicSF.stopAllNotes)window.SonicSF.stopAllNotes();}catch(e){}// Realtime UNCHECKED → export OFFLINE thuần (server-side nếu connected, fallback client).
 // MIDI không render được trong OfflineAudioContext: nếu project có MIDI items mà
 // cache preview chưa đủ → file xuất có thể thiếu âm MIDI. Cảnh báo, vẫn xuất offline.
-const allT=activeTracksRef.current&&activeTracksRef.current.length?activeTracksRef.current:tracks;const hasMidiItems=allT.some(t=>t.midiItems&&t.midiItems.length>0)||(sessionTabs||[]).some(s=>(s.tracks||[]).some(t=>t.midiItems&&t.midiItems.length>0));if(hasMidiItems){const midiTracks=allT.filter(t=>t.midiItems&&t.midiItems.length>0);let needDur=1.0;midiTracks.forEach(t=>{(t.midiItems||[]).forEach(m=>{if(m.endTime)needDur=Math.max(needDur,m.endTime);else if(m.startTime)needDur=Math.max(needDur,m.startTime+(m.duration||8));});});const cacheHasEnergy=c=>{if(!c)return false;const chunks=c.chunks||[];for(let i=0;i<chunks.length;i++){const ch=chunks[i];for(let j=0;j<ch.length;j++){if(Math.abs(ch[j])>0.0005)return true;}}return false;};const cacheOK=midiTracks.length>0&&midiTracks.every(t=>{const c=midiCacheRef.current[t.id];return c&&c.chunks.length>0&&c.duration>=needDur-0.3&&cacheHasEnergy(c);});if(!cacheOK){showToast("Project có MIDI items chưa đủ cache preview — file offline có thể thiếu âm MIDI. Bật Realtime để bounce trung thực.","warning");}}let exportTracks;let clipStart=0;let clipEnd=0;const src=exportSettings.source;if(src==='active_clip'||src==='clip_selection'){const selTrack=selectedTrackId?tracks.find(t=>t.id===selectedTrackId):null;if(!selTrack||!selTrack.buffer){showToast("Không có clip nào được chọn.","warning");return;}let rangeStart=selectionStart;let rangeEnd=selectionEnd;if(rangeStart===null||rangeEnd===null||rangeEnd<=rangeStart){rangeStart=0;rangeEnd=selTrack.buffer.duration;}const ctx=getAudioContext();const numCh=selTrack.buffer.numberOfChannels||1;const sr=selTrack.buffer.sampleRate;const startSample=Math.max(0,Math.floor(rangeStart*sr));const endSample=Math.min(selTrack.buffer.length,Math.floor(rangeEnd*sr));const len=endSample-startSample;if(len<=100){showToast("Vùng chọn quá ngắn hoặc không có dữ liệu.","warning");return;}const clipBuf=ctx.createBuffer(numCh,len,sr);for(let ch=0;ch<numCh;ch++){clipBuf.copyToChannel(selTrack.buffer.getChannelData(ch).subarray(startSample,endSample),ch);}exportTracks=[{...selTrack,buffer:clipBuf,startTime:0,clips:[{id:'export_clip',buffer:clipBuf,startTime:0,name:selTrack.name}]}];}else if(src==='track_mix'){const sel=tracks.filter(t=>t.buffer&&!t.muted);const selTrk=selectedTrackId?sel.filter(t=>t.id===selectedTrackId):sel;if(selTrk.length===0){showToast("Track được chọn không có dữ liệu.","warning");return;}exportTracks=selTrk;}else{exportTracks=tracks.filter(t=>t.buffer&&!t.muted);}if(exportTracks.length===0){showToast("Không tìm thấy dữ liệu âm thanh hợp lệ để xuất.","warning");return;}// LOOP export (BIG_PHASE_3 Phase 2): cắt chính xác vùng loop — bắt đầu từ
+const allT=activeTracksRef.current&&activeTracksRef.current.length?activeTracksRef.current:tracks;const hasMidiItems=allT.some(t=>t.midiItems&&t.midiItems.length>0)||(sessionTabs||[]).some(s=>(s.tracks||[]).some(t=>t.midiItems&&t.midiItems.length>0));if(hasMidiItems){const midiTracks=allT.filter(t=>t.midiItems&&t.midiItems.length>0);let needDur=1.0;midiTracks.forEach(t=>{(t.midiItems||[]).forEach(m=>{if(m.endTime)needDur=Math.max(needDur,m.endTime);else if(m.startTime)needDur=Math.max(needDur,m.startTime+(m.duration||8));});});const cacheHasEnergy=c=>{if(!c)return false;const chunks=c.chunks||[];for(let i=0;i<chunks.length;i++){const ch=chunks[i];for(let j=0;j<ch.length;j++){if(Math.abs(ch[j])>0.0005)return true;}}return false;};const cacheOK=midiTracks.length>0&&midiTracks.every(t=>{const c=midiCacheRef.current[t.id];return c&&c.chunks.length>0&&c.duration>=needDur-0.3&&cacheHasEnergy(c);});if(!cacheOK){showToast("Project có MIDI items chưa đủ cache preview — file offline có thể thiếu âm MIDI. Bật Realtime để bounce trung thực.","warning");}}let exportTracks;let clipStart=0;let clipEnd=0;const src=exportSettings.source;if(src==='active_clip'||src==='clip_selection'){const selTrack=selectedTrackId?tracks.find(t=>t.id===selectedTrackId):null;if(!selTrack||!selTrack.buffer){showToast("Không có clip nào được chọn.","warning");return;}let rangeStart=selectionStart;let rangeEnd=selectionEnd;if(rangeStart===null||rangeEnd===null||rangeEnd<=rangeStart){rangeStart=0;rangeEnd=selTrack.buffer.duration;}const ctx=getAudioContext();const numCh=selTrack.buffer.numberOfChannels||1;const sr=selTrack.buffer.sampleRate;const startSample=Math.max(0,Math.floor(rangeStart*sr));const endSample=Math.min(selTrack.buffer.length,Math.floor(rangeEnd*sr));const len=endSample-startSample;if(len<=100){showToast("Vùng chọn quá ngắn hoặc không có dữ liệu.","warning");return;}const clipBuf=ctx.createBuffer(numCh,len,sr);for(let ch=0;ch<numCh;ch++){clipBuf.copyToChannel(selTrack.buffer.getChannelData(ch).subarray(startSample,endSample),ch);}exportTracks=[{...selTrack,buffer:clipBuf,startTime:0,clips:[{id:'export_clip',buffer:clipBuf,startTime:0,name:selTrack.name}]}];}else if(src==='track_mix'){const sel=tracks.filter(t=>!t.muted&&(t.buffer||t.midiItems&&t.midiItems.length>0));const selTrk=selectedTrackId?sel.filter(t=>t.id===selectedTrackId):sel;if(selTrk.length===0){showToast("Track được chọn không có dữ liệu.","warning");return;}exportTracks=selTrk;}else{exportTracks=tracks.filter(t=>!t.muted&&(t.buffer||t.midiItems&&t.midiItems.length>0));}if(exportTracks.length===0){showToast("Không tìm thấy dữ liệu âm thanh hợp lệ để xuất.","warning");return;}// LOOP export (BIG_PHASE_3 Phase 2): cắt chính xác vùng loop — bắt đầu từ
 // selection (nếu có) hoặc playhead, độ dài = loopBars * secondsPerBar.
 // Không fade in/out, không kéo đuôi (cắt cứng tại biên).
 let loopStart=0,loopDur=0;if(exportSettings.loop){const loopSecPerBar=60.0/(parseFloat(bpm)||120)*4;loopStart=selectionStart!==null&&selectionEnd!==null&&selectionEnd>selectionStart?selectionStart:currentTime;loopDur=Math.max(0.1,(exportSettings.loopBars||4)*loopSecPerBar);const lctx=getAudioContext();exportTracks=exportTracks.map(t=>{if(!t.buffer)return null;const ls=Math.max(0,Math.floor(loopStart*lctx.sampleRate));const le=Math.min(t.buffer.length,Math.ceil((loopStart+loopDur)*lctx.sampleRate));if(le<=ls)return null;const buf=lctx.createBuffer(t.buffer.numberOfChannels,le-ls,t.buffer.sampleRate);for(let ch=0;ch<t.buffer.numberOfChannels;ch++){buf.copyToChannel(t.buffer.getChannelData(ch).subarray(ls,le),ch);}return{...t,buffer:buf,startTime:0,clips:[{id:'export_loop_clip',buffer:buf,startTime:0,name:t.name,speed:1}]};}).filter(Boolean);if(exportTracks.length===0){showToast("Vùng loop không có dữ liệu âm thanh.","warning");return;}}// Check if all active tracks have server file IDs