From 8be4ce99e1238b06592af146f00520ca02dce1fe Mon Sep 17 00:00:00 2001 From: 3dtours Date: Sat, 25 Jul 2026 10:55:46 +0700 Subject: [PATCH] fix: tempo track height 40px fixed + clamp selection >= 0 - TempoTrackLane canvas height fixed to 40px, wrapper h-10 shrink-0 overflow-hidden - selLeft/selRight clamped to Math.max(0, ...) - rulerAnchorRef/setSelectionStart/setSelectionEnd clamped >= 0 --- app/static/js/app.jsx | 27 +++++++++++++++------------ app/static/js/app.precompiled.js | 8 ++++---- wiki.md | 6 ++++++ 3 files changed, 25 insertions(+), 16 deletions(-) diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx index aca1930..8325976 100644 --- a/app/static/js/app.jsx +++ b/app/static/js/app.jsx @@ -1292,7 +1292,7 @@ const TempoTrackLane = ({ const ctx = canvas.getContext('2d'); const dpr = window.devicePixelRatio || 1; const scrollLeftVal = scrollLeft || 0; - const height = canvas.parentElement ? canvas.parentElement.clientHeight : 40; + const height = 40; canvas.width = Math.min(Math.round(drawWidth * dpr), 32768); canvas.height = Math.min(Math.round(height * dpr), 32768); ctx.scale(dpr, dpr); @@ -8676,17 +8676,17 @@ const App = () => { const playheadLeftPos = useMemo(() => (currentTime + leadInMargin) * zoom, [currentTime, zoom, leadInMargin]); const selLeft = useMemo(() => { if (selectionMode === 'local' && localSelectionStart !== null && localSelectionEnd !== null) { - return Math.min(localSelectionStart, localSelectionEnd); + return Math.max(0, Math.min(localSelectionStart, localSelectionEnd)); } if (selectionStart === null || selectionEnd === null) return null; - return Math.min(selectionStart, selectionEnd); + return Math.max(0, Math.min(selectionStart, selectionEnd)); }, [selectionStart, selectionEnd, selectionMode, localSelectionStart, localSelectionEnd]); const selRight = useMemo(() => { if (selectionMode === 'local' && localSelectionStart !== null && localSelectionEnd !== null) { - return Math.max(localSelectionStart, localSelectionEnd); + return Math.max(0, Math.max(localSelectionStart, localSelectionEnd)); } if (selectionStart === null || selectionEnd === null) return null; - return Math.max(selectionStart, selectionEnd); + return Math.max(0, Math.max(selectionStart, selectionEnd)); }, [selectionStart, selectionEnd, selectionMode, localSelectionStart, localSelectionEnd]); const dspSelectionStats = useMemo(() => { @@ -10032,14 +10032,14 @@ const App = () => { e.stopPropagation(); // Shift+click on ruler: lock existing anchor (or currentTime fallback) and extend global selection const anchor = rulerAnchorRef.current !== null && rulerAnchorRef.current !== undefined ? rulerAnchorRef.current : selectionStart !== null && selectionStart !== undefined ? selectionStart : currentTime; - const selS = Math.min(anchor, time); - const selE = Math.max(anchor, time); + const selS = Math.max(0, Math.min(anchor, time)); + const selE = Math.max(0, Math.max(anchor, time)); setSelectionStart(selS); setSelectionEnd(selE); } else { - rulerAnchorRef.current = time; - setSelectionStart(time); - setSelectionEnd(time); + rulerAnchorRef.current = Math.max(0, time); + setSelectionStart(Math.max(0, time)); + setSelectionEnd(Math.max(0, time)); } handlePlayheadSet(time); }; @@ -14960,7 +14960,10 @@ const App = () => { onRulerMouseDown: handleRulerMouseDown, scrollLeft: scrollLeft, canvasRedrawCount: canvasRedrawCount - }), /*#__PURE__*/React.createElement(TempoTrackLane, { + }), /*#__PURE__*/React.createElement("div", { + className: "h-10 shrink-0 relative overflow-hidden", + style: { height: '40px' } + }, /*#__PURE__*/React.createElement(TempoTrackLane, { bpm: parseInt(bpm) || 120, zoom: zoom, timelineWidth: timelineWidth, @@ -14970,7 +14973,7 @@ const App = () => { onRulerMouseDown: handleRulerMouseDown, scrollLeft: scrollLeft, canvasRedrawCount: canvasRedrawCount - }), selectionMode === 'global' && selLeft !== null && selRight !== null && selRight > selLeft && /*#__PURE__*/React.createElement("div", { + })), selectionMode === 'global' && selLeft !== null && selRight !== null && selRight > selLeft && /*#__PURE__*/React.createElement("div", { className: "absolute inset-0 pointer-events-none z-20", style: { left: `${selLeft * zoom}px`, diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index 423382d..e6c98cf 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -58,7 +58,7 @@ if(e.ctrlKey){if(onClearLocalSelection)onClearLocalSelection();if(onSetSelection const dblSecItems=track.sections||[];let dblSecHit=null;for(const sec of dblSecItems){if(time>=sec.start&&time=midi.startTime&&timetime>=c.startTime&&time{e.preventDefault();e.stopPropagation();onSelectTrack(track.id);const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,x/zoom-leadInMargin);// Detect section under cursor const secList=track.sections||[];let hitSectionId=null;for(const sec of secList){if(time>=sec.start&&time{const canvasRef=useRef(null);const RULER_HEIGHT=40;const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const height=RULER_HEIGHT;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle='#242424';ctx.fillRect(0,0,drawWidth,height);ctx.strokeStyle='rgba(255,255,255,0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(0,height-0.5);ctx.lineTo(drawWidth,height-0.5);ctx.stroke();const PADDING_LEFT=8/zoom;const tStart=scrollLeftVal/zoom-PADDING_LEFT;const tEnd=(scrollLeftVal+drawWidth)/zoom+PADDING_LEFT;const CLIP_BUFFER=400;// Draw time duration labels with drag-selection markers -const minTimePx=60;const rawSecInt=Math.max(1,Math.ceil(minTimePx/zoom));const timePowers=[1,2,5,10,30,60];let secInterval=timePowers.find(p=>p>=rawSecInt)||120;if(secInterval*zoomdrawWidth+CLIP_BUFFER)continue;ctx.strokeStyle='rgba(255, 180, 100, 0.12)';ctx.lineWidth=0.8;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();ctx.strokeStyle='rgba(255, 180, 100, 0.3)';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,10);ctx.stroke();ctx.fillStyle='rgba(255, 180, 100, 0.7)';ctx.font='bold 11px monospace';ctx.textAlign='center';ctx.fillText(formatTimeSimple(t),localX,24);}},[bpm,zoom,timelineWidth,viewportWidth,scrollLeft,canvasRedrawCount]);return React.createElement(React.Fragment,null,React.createElement("div",{key:"virtual-spacer-ruler",style:{width:`${timelineWidth}px`,height:'1px',pointerEvents:'none'}}),React.createElement("canvas",{ref:canvasRef,style:{position:'sticky',left:0,imageRendering:'pixelated'},className:"cursor-crosshair",onMouseDown:e=>{const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,x/zoom);if(e.shiftKey){e.preventDefault();e.stopPropagation();}if(onRulerMouseDown)onRulerMouseDown(e);else onPlayheadSet(time,e.shiftKey);}}));};const TempoTrackLane=({bpm,zoom,timelineWidth,viewportWidth,onPlayheadSet,snapValue,onRulerMouseDown,scrollLeft,canvasRedrawCount,leadInMargin:propLeadIn})=>{const canvasRef=useRef(null);const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const height=canvas.parentElement?canvas.parentElement.clientHeight:40;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle='#1a1a2e';ctx.fillRect(0,0,drawWidth,height);const beatDuration=60/bpm;const barDuration=beatDuration*4;const leadIn=propLeadIn!==undefined?propLeadIn:0;const CLIP_BUFFER=Math.max(400,barDuration*zoom+200);const PADDING_LEFT=8/zoom;const tStart=(scrollLeftVal-leadIn*zoom)/zoom-PADDING_LEFT;const tEnd=(scrollLeftVal+drawWidth-leadIn*zoom)/zoom+PADDING_LEFT;const firstBeat=Math.floor(tStart/beatDuration)*beatDuration;for(let t=firstBeat;t<=tEnd;t+=beatDuration){const beatNum=Math.floor(t/beatDuration)+1;const isBar=beatNum%4===1;const localX=(t-tStart)*zoom;if(localX<-CLIP_BUFFER||localX>drawWidth+CLIP_BUFFER)continue;if(isBar){ctx.strokeStyle='rgba(255, 255, 255, 0.3)';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();ctx.fillStyle='rgba(255, 255, 255, 0.7)';ctx.font='bold 9px Inter, sans-serif';ctx.textAlign='left';ctx.fillText(`${Math.floor((beatNum-1)/4)}`,localX+3,11);}else{ctx.strokeStyle='rgba(255, 255, 255, 0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();}ctx.fillStyle='rgba(255, 255, 255, 0.35)';ctx.font='7px Inter, sans-serif';const bar=Math.floor((beatNum-1)/4);const beat=(beatNum-1)%4+1;ctx.fillText(`${bar}:${beat}`,localX+2,height-3);}// Draw snap sub-ticks at the bottom +const minTimePx=60;const rawSecInt=Math.max(1,Math.ceil(minTimePx/zoom));const timePowers=[1,2,5,10,30,60];let secInterval=timePowers.find(p=>p>=rawSecInt)||120;if(secInterval*zoomdrawWidth+CLIP_BUFFER)continue;ctx.strokeStyle='rgba(255, 180, 100, 0.12)';ctx.lineWidth=0.8;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();ctx.strokeStyle='rgba(255, 180, 100, 0.3)';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,10);ctx.stroke();ctx.fillStyle='rgba(255, 180, 100, 0.7)';ctx.font='bold 11px monospace';ctx.textAlign='center';ctx.fillText(formatTimeSimple(t),localX,24);}},[bpm,zoom,timelineWidth,viewportWidth,scrollLeft,canvasRedrawCount]);return React.createElement(React.Fragment,null,React.createElement("div",{key:"virtual-spacer-ruler",style:{width:`${timelineWidth}px`,height:'1px',pointerEvents:'none'}}),React.createElement("canvas",{ref:canvasRef,style:{position:'sticky',left:0,imageRendering:'pixelated'},className:"cursor-crosshair",onMouseDown:e=>{const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,x/zoom);if(e.shiftKey){e.preventDefault();e.stopPropagation();}if(onRulerMouseDown)onRulerMouseDown(e);else onPlayheadSet(time,e.shiftKey);}}));};const TempoTrackLane=({bpm,zoom,timelineWidth,viewportWidth,onPlayheadSet,snapValue,onRulerMouseDown,scrollLeft,canvasRedrawCount,leadInMargin:propLeadIn})=>{const canvasRef=useRef(null);const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const height=40;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle='#1a1a2e';ctx.fillRect(0,0,drawWidth,height);const beatDuration=60/bpm;const barDuration=beatDuration*4;const leadIn=propLeadIn!==undefined?propLeadIn:0;const CLIP_BUFFER=Math.max(400,barDuration*zoom+200);const PADDING_LEFT=8/zoom;const tStart=(scrollLeftVal-leadIn*zoom)/zoom-PADDING_LEFT;const tEnd=(scrollLeftVal+drawWidth-leadIn*zoom)/zoom+PADDING_LEFT;const firstBeat=Math.floor(tStart/beatDuration)*beatDuration;for(let t=firstBeat;t<=tEnd;t+=beatDuration){const beatNum=Math.floor(t/beatDuration)+1;const isBar=beatNum%4===1;const localX=(t-tStart)*zoom;if(localX<-CLIP_BUFFER||localX>drawWidth+CLIP_BUFFER)continue;if(isBar){ctx.strokeStyle='rgba(255, 255, 255, 0.3)';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();ctx.fillStyle='rgba(255, 255, 255, 0.7)';ctx.font='bold 9px Inter, sans-serif';ctx.textAlign='left';ctx.fillText(`${Math.floor((beatNum-1)/4)}`,localX+3,11);}else{ctx.strokeStyle='rgba(255, 255, 255, 0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();}ctx.fillStyle='rgba(255, 255, 255, 0.35)';ctx.font='7px Inter, sans-serif';const bar=Math.floor((beatNum-1)/4);const beat=(beatNum-1)%4+1;ctx.fillText(`${bar}:${beat}`,localX+2,height-3);}// Draw snap sub-ticks at the bottom if(snapValue&&snapValue!=='free'){ctx.strokeStyle='rgba(255, 255, 255, 0.15)';ctx.lineWidth=0.8;let divisor=1;if(snapValue==='4')divisor=4;else if(snapValue==='1')divisor=1;else if(snapValue==='1/2')divisor=0.5;else if(snapValue==='1/4')divisor=0.25;else if(snapValue==='1/8')divisor=0.125;else if(snapValue==='1/16')divisor=0.0625;else if(snapValue==='1/32')divisor=0.03125;const snapInterval=beatDuration*divisor;if(snapInterval*zoom>=4){const firstSnap=Math.floor(tStart/snapInterval)*snapInterval;for(let t=firstSnap;t<=tEnd;t+=snapInterval){const onBeat=Math.abs(t/beatDuration-Math.round(t/beatDuration))<0.001;if(!onBeat){const localX=(t-tStart)*zoom;ctx.beginPath();ctx.moveTo(localX,height-6);ctx.lineTo(localX,height);ctx.stroke();}}}}// Draw time duration labels (restored from original time ruler) const minTimePx=60;const rawSecInterval=Math.max(1,Math.ceil(minTimePx/zoom));const timePowers=[1,2,5,10,30,60];let secInterval=timePowers.find(p=>p>=rawSecInterval)||120;if(secInterval*zoomdrawWidth+CLIP_BUFFER)continue;ctx.strokeStyle='rgba(255, 180, 100, 0.15)';ctx.lineWidth=0.8;ctx.beginPath();ctx.moveTo(localX,16);ctx.lineTo(localX,height);ctx.stroke();ctx.fillStyle='rgba(255, 180, 100, 0.5)';ctx.font='8px monospace';ctx.textAlign='center';ctx.fillText(formatTimeSimple(t),localX,12);}ctx.fillStyle='rgba(255, 255, 255, 0.35)';ctx.font='bold 10px Inter, sans-serif';ctx.textAlign='right';ctx.fillText(`${bpm} BPM`,drawWidth-6,12);},[bpm,zoom,timelineWidth,viewportWidth,snapValue,scrollLeft,canvasRedrawCount,propLeadIn]);return/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{key:"virtual-spacer-tempo",style:{width:`${timelineWidth}px`,height:'1px',pointerEvents:'none'}}),/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,style:{position:'sticky',left:0,imageRendering:'pixelated'},className:"cursor-crosshair",onMouseDown:e=>{const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,x/zoom);if(e.shiftKey){e.preventDefault();e.stopPropagation();}if(onRulerMouseDown){onRulerMouseDown(e);}else{onPlayheadSet(time,e.shiftKey);}}}));};// ── Sub-Tab Waveform Component (LOOP_EDITOR_2.md §1.2 & SUB_EDITOR.md) ── const SubTabWaveform=({buffer,subTabId,activeTab,currentTime,selectionStart,selectionEnd,onSelectRange,onPlayheadSet,onContextMenu,activeTool,zoom,timelineWidth,color,name,speed=1.0,onSpeedChange,volumeNodes=[],panningNodes=[],fadeInLen=0,fadeOutLen=0,graphMode=null,onUpdateNodes,onUpdateFade,onModeToggle,selectedNodeTime,setSelectedNodeTime,channelInfo=null})=>{const canvasRef=useRef(null);const isStretchingRef=useRef(false);const stretchStartRef=useRef({mouseX:0,originalDuration:0,originalSpeed:1.0});const subTabAnchorRef=useRef(null);const isStereo=channelInfo?channelInfo.isStereo:buffer&&buffer.numberOfChannels>=2;const channelLabel=channelInfo?channelInfo.label:isStereo?'STEREO':'MONO';// Mono: force volume mode (panning not applicable) @@ -243,7 +243,7 @@ const ctx=getAudioContext();const clipBuffer=ctx.createBuffer(1,len,sr);clipBuff const newLen=data.length-len;const newBuffer=ctx.createBuffer(1,newLen,sr);const newData=newBuffer.getChannelData(0);let idx=0;for(let i=0;ip.map(tr=>tr.id===selectedTrackId?{...tr,buffer:newBuffer}:tr));const afterSnap=captureTrackSnapshot(selectedTrackId);pushAction('CUT',selectedTrackId,beforeSnap,afterSnap);showToast('Cut selection to clipboard.','info');return;}}// No selection: cut entire track (copy + delete) handleCopyTrack();handleDeleteTrack();};const handleDeleteTrack=()=>{const tid=selectedTrackId;const sessionTab=sessionTabs.find(s=>s.id===activeTab);if(sessionTab){updateActiveTracks(prev=>prev.filter(t=>t.id!==tid));setSelectedTrackId(activeTracks.filter(t=>t.id!==tid)[0]?.id||'1');}else{const curTracks=tracks;const track=curTracks.find(t=>t.id===tid);if(track&&track.sections&&track.sections.length>0){showToast('Không thể xoá track chứa Section item.','warning');return;}setTracks(p=>p.filter(t=>t.id!==tid));setSelectedTrackId(curTracks.filter(t=>t.id!==tid)[0]?.id||'1');}showToast('Deleted track.','info');};// ── Server Health Check ── const[viewportWidth,setViewportWidth]=useState(1200);useEffect(()=>{if(!timelineWrapperNode)return;const observer=new ResizeObserver(entries=>{for(let entry of entries){setViewportWidth(entry.contentRect.width);}});observer.observe(timelineWrapperNode);return()=>observer.disconnect();},[timelineWrapperNode]);useEffect(()=>{fetch(API_BASE_URL).then(r=>{if(r.ok)setServerStatus('connected');else setServerStatus('error');}).catch(()=>setServerStatus('offline'));},[]);// ── Computed Values ── -const leadInMargin=0;const leadInMarginRef=useRef(0);leadInMarginRef.current=0;const maxDuration=useMemo(()=>{const secPerBar=60.0/(parseInt(bpm)||120)*4;const cur=activeTracks;let max=10;cur.forEach(t=>{const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default',buffer:t.buffer,startTime:t.startTime||0,name:t.name,speed:t.speed||1.0}]:[];clips.forEach(c=>{if(c.buffer){const cStart=c.startTime||0;const cDur=c.buffer.duration/(c.speed||1.0);max=Math.max(max,cStart+cDur);}});(t.midiItems||[]).forEach(m=>{max=Math.max(max,(m.startTime||0)+(m.duration||4));});(t.sections||[]).forEach(s=>{max=Math.max(max,(s.start||0)+(s.duration||4));});});if(recordingState==='RECORDING'||recordingState==='COUNT_IN'){max=Math.max(max,currentTime+60);}max+=secPerBar*12+scrollBufferExtra;return max;},[activeTracks,recordingState,currentTime,bpm,scrollBufferExtra]);const maxDurationRef=useRef(maxDuration);maxDurationRef.current=maxDuration;const minZoom=useMemo(()=>{return viewportWidth/maxDuration;},[viewportWidth,maxDuration]);const timelineWidth=useMemo(()=>{return Math.max(zoom*(maxDuration+leadInMargin),viewportWidth);},[zoom,maxDuration,viewportWidth,leadInMargin]);useEffect(()=>{if(zoom(currentTime+leadInMargin)*zoom,[currentTime,zoom,leadInMargin]);const selLeft=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.min(localSelectionStart,localSelectionEnd);}if(selectionStart===null||selectionEnd===null)return null;return Math.min(selectionStart,selectionEnd);},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const selRight=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(localSelectionStart,localSelectionEnd);}if(selectionStart===null||selectionEnd===null)return null;return Math.max(selectionStart,selectionEnd);},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const dspSelectionStats=useMemo(()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track)return null;const numChannels=track.buffer?track.buffer.numberOfChannels||1:0;if(selLeft===null||selRight===null||selRight<=selLeft||!track.buffer){return{trackName:track.name,channels:numChannels,timeRange:'Chưa chọn vùng',peakVolume:'N/A'};}const buffer=track.buffer;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(selLeft*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(selRight*sampleRate)));let maxVal=0;for(let c=0;cmaxVal)maxVal=val;}}let peakDb='N/A';if(maxVal>0){const db=20*Math.log10(maxVal);peakDb=db.toFixed(2)+' dB';}else{peakDb='-∞ dB';}return{trackName:track.name,channels:numChannels,timeRange:`${selLeft.toFixed(2)}s - ${selRight.toFixed(2)}s (${(selRight-selLeft).toFixed(2)}s)`,peakVolume:peakDb};},[tracks,selectedTrackId,selLeft,selRight]);// ── Toast helper ── +const leadInMargin=0;const leadInMarginRef=useRef(0);leadInMarginRef.current=0;const maxDuration=useMemo(()=>{const secPerBar=60.0/(parseInt(bpm)||120)*4;const cur=activeTracks;let max=10;cur.forEach(t=>{const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default',buffer:t.buffer,startTime:t.startTime||0,name:t.name,speed:t.speed||1.0}]:[];clips.forEach(c=>{if(c.buffer){const cStart=c.startTime||0;const cDur=c.buffer.duration/(c.speed||1.0);max=Math.max(max,cStart+cDur);}});(t.midiItems||[]).forEach(m=>{max=Math.max(max,(m.startTime||0)+(m.duration||4));});(t.sections||[]).forEach(s=>{max=Math.max(max,(s.start||0)+(s.duration||4));});});if(recordingState==='RECORDING'||recordingState==='COUNT_IN'){max=Math.max(max,currentTime+60);}max+=secPerBar*12+scrollBufferExtra;return max;},[activeTracks,recordingState,currentTime,bpm,scrollBufferExtra]);const maxDurationRef=useRef(maxDuration);maxDurationRef.current=maxDuration;const minZoom=useMemo(()=>{return viewportWidth/maxDuration;},[viewportWidth,maxDuration]);const timelineWidth=useMemo(()=>{return Math.max(zoom*(maxDuration+leadInMargin),viewportWidth);},[zoom,maxDuration,viewportWidth,leadInMargin]);useEffect(()=>{if(zoom(currentTime+leadInMargin)*zoom,[currentTime,zoom,leadInMargin]);const selLeft=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(0,Math.min(localSelectionStart,localSelectionEnd));}if(selectionStart===null||selectionEnd===null)return null;return Math.max(0,Math.min(selectionStart,selectionEnd));},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const selRight=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(0,Math.max(localSelectionStart,localSelectionEnd));}if(selectionStart===null||selectionEnd===null)return null;return Math.max(0,Math.max(selectionStart,selectionEnd));},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const dspSelectionStats=useMemo(()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track)return null;const numChannels=track.buffer?track.buffer.numberOfChannels||1:0;if(selLeft===null||selRight===null||selRight<=selLeft||!track.buffer){return{trackName:track.name,channels:numChannels,timeRange:'Chưa chọn vùng',peakVolume:'N/A'};}const buffer=track.buffer;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(selLeft*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(selRight*sampleRate)));let maxVal=0;for(let c=0;cmaxVal)maxVal=val;}}let peakDb='N/A';if(maxVal>0){const db=20*Math.log10(maxVal);peakDb=db.toFixed(2)+' dB';}else{peakDb='-∞ dB';}return{trackName:track.name,channels:numChannels,timeRange:`${selLeft.toFixed(2)}s - ${selRight.toFixed(2)}s (${(selRight-selLeft).toFixed(2)}s)`,peakVolume:peakDb};},[tracks,selectedTrackId,selLeft,selRight]);// ── Toast helper ── const showToast=(text,type='info',actionText=null,onActionClick=null)=>{if(toastTimeoutRef.current)clearTimeout(toastTimeoutRef.current);setToastMessage({text,type,actionText,onActionClick});toastTimeoutRef.current=setTimeout(()=>setToastMessage(null),actionText?8000:3500);};window.showToast=showToast;// ── Server-side upload ── const uploadToServer=async(file,trackId)=>{const formData=new FormData();formData.append('file',file);try{const resp=await fetch(`${API_AUDIO}/upload`,{method:'POST',body:formData});if(!resp.ok)throw new Error(`Upload failed: ${resp.status}`);const data=await resp.json();serverFileIdMap[trackId]=data.file_id;return data;}catch(err){console.warn('Server upload failed, using client-side only:',err.message);return null;}};// ── Server-side waveform loading ── const loadServerWaveform=async fileId=>{try{const resp=await fetch(`${API_AUDIO}/waveform/${fileId}?num_peaks=800`);if(!resp.ok)return null;return await resp.json();}catch{return null;}};// ── Check Celery task result ── @@ -286,7 +286,7 @@ console.log(`[DevLog] [MIDI Rec Sync] Temp Item ID: ${midiRec.tempMidiItemId}, D const handlePlayheadSet=(time,shiftKey)=>{localSelectionAnchorRef.current=time;if(isPlaying){// Click during playback: seek to position and continue playing setCurrentTime(time);stopAllPlayback();setTimeout(()=>{startOffsetTimeRef.current=time;startAudioTimeRef.current=getAudioContext().currentTime;startTrackPlayback(time);setIsPlaying(true);},50);}else{// Normal click: just set playhead setCurrentTime(time);}};const clearLocalSelection=()=>{setSelectionMode(null);setLocalSelectionTrackId(null);setLocalSelectionStart(null);setLocalSelectionEnd(null);};const handleRulerMouseDown=e=>{if(e.ctrlKey){e.preventDefault();e.stopPropagation();clearLocalSelection();setSelectionMode(null);setSelectionStart(null);setSelectionEnd(null);return;}const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const rawTime=Math.max(0,mouseX/zoom-leadInMargin);const time=snapValue!=='free'?snapTime(rawTime,snapValue,bpm):rawTime;clearLocalSelection();setSelectionMode('global');rulerDragStartRef.current=time;isDraggingRulerRef.current=true;if(e.shiftKey){e.preventDefault();e.stopPropagation();// Shift+click on ruler: lock existing anchor (or currentTime fallback) and extend global selection -const anchor=rulerAnchorRef.current!==null&&rulerAnchorRef.current!==undefined?rulerAnchorRef.current:selectionStart!==null&&selectionStart!==undefined?selectionStart:currentTime;const selS=Math.min(anchor,time);const selE=Math.max(anchor,time);setSelectionStart(selS);setSelectionEnd(selE);}else{rulerAnchorRef.current=time;setSelectionStart(time);setSelectionEnd(time);}handlePlayheadSet(time);};// Global Ruler mousemove is tracked via document listener set up in useEffect +const anchor=rulerAnchorRef.current!==null&&rulerAnchorRef.current!==undefined?rulerAnchorRef.current:selectionStart!==null&&selectionStart!==undefined?selectionStart:currentTime;const selS=Math.max(0,Math.min(anchor,time));const selE=Math.max(0,Math.max(anchor,time));setSelectionStart(selS);setSelectionEnd(selE);}else{rulerAnchorRef.current=Math.max(0,time);setSelectionStart(Math.max(0,time));setSelectionEnd(Math.max(0,time));}handlePlayheadSet(time);};// Global Ruler mousemove is tracked via document listener set up in useEffect useEffect(()=>{const handleMouseMove=e=>{if(!isDraggingRulerRef.current)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const rawTime=Math.max(0,Math.min(maxDuration,mouseX/zoom-leadInMarginRef.current));const time=snapValueRef.current!=='free'?snapTime(rawTime,snapValueRef.current,bpmRef.current):rawTime;const anchor=rulerAnchorRef.current??rulerDragStartRef.current??time;setSelectionStart(Math.min(anchor,time));setSelectionEnd(Math.max(anchor,time));};const handleMouseUp=()=>{if(isDraggingRulerRef.current){isDraggingRulerRef.current=false;rulerDragStartRef.current=null;}};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,maxDuration]);// ── Track Lane Local Selection Drag ── const localDragInProgressRef=useRef(false);const localDragTrackRef=useRef(null);const localDragStartTimeRef=useRef(0);const localSelectionAnchorRef=useRef(null);const handleTrackLaneMouseDown=(trackId,time)=>{setSelectedTrackId(trackId);clearLocalSelection();localSelectionAnchorRef.current=time;setSelectionMode('local');setLocalSelectionTrackId(trackId);setLocalSelectionStart(time);setLocalSelectionEnd(time);setSelectionStart(time);setSelectionEnd(time);localDragInProgressRef.current=true;localDragTrackRef.current=trackId;localDragStartTimeRef.current=time;};// Document-level mousemove/mouseup for local selection drag useEffect(()=>{const handleMouseMove=e=>{if(!localDragInProgressRef.current)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=Math.max(0,Math.min(maxDuration,mouseX/zoom));const anchor=localSelectionAnchorRef.current??localDragStartTimeRef.current;const selS=Math.min(anchor,time);const selE=Math.max(anchor,time);setLocalSelectionStart(selS);setLocalSelectionEnd(selE);setSelectionStart(selS);setSelectionEnd(selE);};const handleMouseUp=()=>{if(localDragInProgressRef.current){localDragInProgressRef.current=false;localDragTrackRef.current=null;localDragStartTimeRef.current=0;}};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,maxDuration]);const draggedClipRef=useRef(null);draggedClipRef.current=draggedClip;const hoveredTrackIdRef=useRef(null);hoveredTrackIdRef.current=hoveredTrackId;const captureTrackSnapshotRef=useRef(null);captureTrackSnapshotRef.current=captureTrackSnapshot;const draggedSectionItemRef=useRef(null);draggedSectionItemRef.current=draggedSectionItem;const resizedSectionItemRef=useRef(null);resizedSectionItemRef.current=resizedSectionItem;let clipSeqCounter=0;const nextClipId=()=>`clip_${Date.now()}_${++clipSeqCounter}`;const handleClipDragStart=(trackId,clipId,clickOffset,isDuplicate=false)=>{const curTracks=activeTracksRef.current||activeTracks;const track=curTracks.find(t=>t.id===trackId);if(!track)return;const existingClips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];const clip=existingClips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+track.id);if(!clip)return;const beforeSnap=captureTrackSnapshot(trackId);if(isDuplicate){const cloneId=nextClipId();const clone={...clip,id:cloneId,startTime:clip.startTime||0,name:clip.name+' (Copy)'};updateActiveTracks(prev=>prev.map(t=>{if(t.id===trackId){const newClips=[...existingClips,clone];return{...t,clips:newClips,buffer:newClips[0].buffer,startTime:newClips[0].startTime,name:newClips[0].name};}return t;}));setDraggedClip({trackId,clipId:cloneId,clickOffset,buffer:clip.buffer,name:clip.name+' (Copy)',beforeSnap,isDuplicate:false});return;}if(!track.clips||track.clips.length===0){updateActiveTracks(prev=>prev.map(t=>{if(t.id===trackId){return{...t,clips:existingClips};}return t;}));}setDraggedClip({trackId,clipId:clip.id,clickOffset,buffer:clip.buffer,name:clip.name,beforeSnap,isDuplicate:false});};const stretchedClipRef=useRef(null);stretchedClipRef.current=stretchedClip;const handleClipStretchStart=(trackId,clipId,clickTime)=>{const curTracks=activeTracksRef.current||activeTracks;const track=curTracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];const clip=clips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+trackId);if(!clip||!clip.buffer)return;const beforeSnap=captureTrackSnapshot(trackId);if(!track.clips||track.clips.length===0){updateActiveTracks(prev=>prev.map(t=>t.id===trackId?{...t,clips}:t));}setStretchedClip({trackId,clipId:clip.id==='default'?'default_'+trackId:clip.id,originalDuration:clip.buffer.duration,startTime:clip.startTime,originalSpeed:clip.speed||1.0,beforeSnap});};const handleSelectionEdgeDragStart=(e,trackId,side)=>{const startX=e.clientX;const initialLeft=Math.min(localSelectionStart,localSelectionEnd);const initialRight=Math.max(localSelectionStart,localSelectionEnd);const handleMouseMove=moveEvent=>{const deltaX=moveEvent.clientX-startX;const deltaSec=deltaX/zoom;if(side==='left'){const newLeft=Math.max(0,Math.min(initialRight-0.05,initialLeft+deltaSec));setLocalSelectionStart(newLeft);setLocalSelectionEnd(initialRight);}else{const newRight=Math.max(initialLeft+0.05,Math.min(maxDuration,initialRight+deltaSec));setLocalSelectionStart(initialLeft);setLocalSelectionEnd(newRight);}};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleTrackResizeMouseDown=(e,trackId)=>{e.preventDefault();e.stopPropagation();const startY=e.clientY;const track=tracks.find(t=>t.id===trackId);const startHeight=track?track.height||140:140;const handleMouseMove=moveEvent=>{const deltaY=moveEvent.clientY-startY;const newHeight=Math.max(110,Math.min(300,startHeight+deltaY));setTracks(prev=>prev.map(t=>t.id===trackId?{...t,height:newHeight}:t));};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const deleteTrack=trackId=>{const sessionTab=sessionTabs.find(s=>s.id===activeTab);const trackList=sessionTab?sessionTab.tracks:tracks;const track=trackList.find(t=>t.id===trackId);if(!track)return;const hasClips=track.clips&&track.clips.length>0||!!track.buffer;const hasMidi=track.midiItems&&track.midiItems.length>0;const hasSections=track.sections&&track.sections.length>0;const isTrackEmpty=!hasClips&&!hasMidi&&!hasSections;if(!isTrackEmpty){showToast('Không thể xoá track chứa dữ liệu. Vui lòng xoá hết các item trước khi xoá track.','warning');return;}if(sessionTab){updateActiveTracks(prev=>{const filtered=prev.filter(t=>t.id!==trackId);if(filtered.length>0)setSelectedTrackId(filtered[0].id);return filtered;});}else{const beforeSnap=captureTrackSnapshot(trackId);setTracks(prev=>{const filtered=prev.filter(t=>t.id!==trackId);if(filtered.length>0)setSelectedTrackId(filtered[0].id);return filtered;});}showToast('Đã xóa track.','info');};// Shared auto-scroll: when mouse near right edge, scroll container right @@ -371,5 +371,5 @@ const handleSplitTrackAtTime=(trackId,clipId,time)=>{const track=tracks.find(t=> const handleGlueTracks=()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track){showToast('Vui lòng chọn một track để thực hiện gộp (glue).','warning');return;}const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length<2){showToast('Cần ít nhất 2 clip trên track này để gộp (glue).','warning');return;}const beforeSnap=captureTrackSnapshot(track.id);const ctx=getAudioContext();const sr=clips[0].buffer.sampleRate;let minStart=Infinity;let maxEnd=-Infinity;clips.forEach(c=>{const start=c.startTime||0;const end=start+c.buffer.duration;minStart=Math.min(minStart,start);maxEnd=Math.max(maxEnd,end);});const newDur=maxEnd-minStart;const newBuffer=ctx.createBuffer(1,Math.ceil(newDur*sr),sr);const newData=newBuffer.getChannelData(0);clips.forEach(c=>{const data=c.buffer.getChannelData(0);const offset=Math.floor(((c.startTime||0)-minStart)*sr);for(let i=0;imaxPeak)maxPeak=abs;}if(maxPeak>1.0){for(let i=0;iprev.map(t=>{if(t.id===track.id){return{...t,clips:[mergedClip],buffer:newBuffer,startTime:minStart,name:mergedClip.name};}return t;}));setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('GLUE',track.id,beforeSnap,afterSnap);},50);showToast(`Đã gộp ${clips.length} clips thành công.`,'success');};// ── DAW Command Registration for AI (28_AI_PANEL.md §1 & §2) ── useEffect(()=>{if(typeof window.DAWCommandDispatcher==='undefined')return;const api={createTrack:args=>{const name=args.name||`AI_Track_${Date.now()}`;const type=args.type||'audio';const newId=addNewTrack();if(name&&name!==`AI_Track_${Date.now()}`){updateTrackName(newId,name);}return{success:true,trackId:newId,name};},deleteTrack:args=>{const tid=args.track_id||selectedTrackId;if(!tid)return{success:false,error:'No track_id provided'};deleteTrack(tid);return{success:true,trackId:tid};},addClip:args=>{const trackId=args.track_id||selectedTrackId;const barDur=60/parseInt(bpm||120)*4;let startTime;if(args.start_time!==undefined&&args.start_time!==null)startTime=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)startTime=args.start_bar*barDur;else startTime=currentTime;const track=tracks.find(t=>t.id===trackId);if(!track)return{success:false,error:'Track not found'};const ctx=getAudioContext();const sr=44100;let duration;if(args.duration_seconds!==undefined&&args.duration_seconds!==null)duration=args.duration_seconds;else if(args.length_bars!==undefined&&args.length_bars!==null)duration=args.length_bars*barDur;else duration=2;const buffer=ctx.createBuffer(1,Math.floor(sr*duration),sr);const data=buffer.getChannelData(0);for(let i=0;iprev.map(t=>{if(t.id!==trackId)return t;const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];return{...t,clips:[...clips,{id:clipId,buffer,startTime,name:args.name||'AI Clip'}],buffer:clips.length>0?clips[0].buffer:buffer,startTime:clips.length>0?clips[0].startTime:startTime,name:clips.length>0?clips[0].name:args.name||t.name};}));return{success:true,clipId,trackId};},removeClip:args=>{const trackId=args.track_id||selectedTrackId;const clipId=args.clip_id;setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const updatedClips=(t.clips||[]).filter(c=>c.id!==clipId);return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer||null,startTime:updatedClips[0]?.startTime||0,name:updatedClips[0]?.name||t.name};}));return{success:true};},setTrackVolume:args=>{const trackId=args.track_id||selectedTrackId;const vol=args.volume_db??args.volume??0;updateTrackVolumeDb(trackId,parseFloat(vol));return{success:true,trackId,volumeDb:vol};},setTrackPan:args=>{const trackId=args.track_id||selectedTrackId;const pan=args.pan??0;updateTrackPan(trackId,parseInt(pan));return{success:true,trackId,pan};},toggleMute:args=>{const trackId=args.track_id||selectedTrackId;toggleTrackMute(trackId);const track=tracks.find(t=>t.id===trackId);return{success:true,trackId,muted:track?track.muted:null};},toggleSolo:args=>{const trackId=args.track_id||selectedTrackId;toggleTrackSoloEvaluate(trackId);const track=tracks.find(t=>t.id===trackId);return{success:true,trackId,solo:track?track.solo:null};},processAudioDsp:args=>{const trackId=args.track_id||selectedTrackId;const action=args.action;const params=args.params||{};const track=tracks.find(t=>t.id===trackId);if(!track||!track.buffer)return{success:false,error:'Track has no audio buffer'};if(action==='normalize'){const channelData=track.buffer.getChannelData(0);let maxVal=0;for(let i=0;i0){const gain=1.0/maxVal;for(let i=0;i{const newLen=Math.round(data.length*r);const out=new Float32Array(newLen);for(let i=0;iprev.map(t=>t.id===trackId?{...t,buffer:newBuffer}:t));return{success:true,action:'pitch_shift',semitones};}return{success:false,error:`Unknown action: ${action}`};},renameTrack:args=>{const tid=args.track_id||selectedTrackId;const name=args.name;if(!tid)return{success:false,error:'No track_id provided'};if(!name)return{success:false,error:'No name provided'};updateTrackName(tid,name);return{success:true,trackId:tid,name};},setSelection:args=>{const barDur=60/parseInt(bpm||120)*4;let start,end;if(args.start_time!==undefined&&args.start_time!==null)start=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)start=args.start_bar*barDur;else start=currentTime;if(args.end_time!==undefined&&args.end_time!==null)end=args.end_time;else if(args.length_bars!==undefined&&args.length_bars!==null)end=start+args.length_bars*barDur;else if(args.end_bar!==undefined&&args.end_bar!==null)end=args.end_bar*barDur;else end=start+barDur;clearLocalSelection();setSelectionMode('global');setSelectionStart(start);setSelectionEnd(end);selectionRef.current={start,end};return{success:true,start:parseFloat(start.toFixed(3)),end:parseFloat(end.toFixed(3)),length:parseFloat((end-start).toFixed(3))};},cutAudio:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;const tid=args.track_id||currentSelTrackId;const track=currentTracks.find(t=>t.id===String(tid));if(!track)return{success:false,error:'Track not found'};if(!track.buffer)return{success:false,error:'Track has no audio buffer'};const barDur=60/parseInt(bpm||120)*4;const sel=selectionRef.current;let rawStart,rawEnd;if(args.start_time!==undefined&&args.start_time!==null)rawStart=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)rawStart=args.start_bar*barDur;else if(sel.start!==null)rawStart=sel.start;else rawStart=currentTime;if(args.end_time!==undefined&&args.end_time!==null)rawEnd=args.end_time;else if(args.end_bar!==undefined&&args.end_bar!==null)rawEnd=args.end_bar*barDur;else if(args.length_bars!==undefined&&args.length_bars!==null)rawEnd=rawStart+args.length_bars*barDur;else if(sel.end!==null&&sel.end>rawStart)rawEnd=sel.end;else return{success:false,error:'No end position provided. Provide end_time, end_bar, or length_bars.'};if(rawEnd<=rawStart)return{success:false,error:'End position must be after start position.'};const buffer=track.buffer;const ctx=getAudioContext();const snap=args.snap_silence!==false;const loopStart=snap?findZeroCrossing(buffer,rawStart):rawStart;const loopEnd=snap?findZeroCrossing(buffer,rawEnd):rawEnd;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(loopStart*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(loopEnd*sampleRate)));const sliceLength=endSample-startSample;if(sliceLength<=100)return{success:false,error:'Selection too short or invalid'};const numChannels=buffer.numberOfChannels||1;const slicedBuffer=ctx.createBuffer(numChannels,sliceLength,sampleRate);for(let c=0;ct.id===tid);const nextTracks=[...currentTracks];if(idx!==-1){nextTracks.splice(idx+1,0,newTrack);}else{nextTracks.push(newTrack);}if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;window.DAWCommandDispatcher.currentSelectedTrackId=newId;window.DAWCommandDispatcher.lastCutSourceTrackId=tid;window.DAWCommandDispatcher.lastCutNewTrackId=newId;}setTracks(nextTracks);setSelectedTrackId(newId);selectionRef.current={start:0,end:slicedBuffer.duration};clearLocalSelection();setSelectionMode('global');setSelectionStart(0);setSelectionEnd(slicedBuffer.duration);setTimeout(()=>lucide.createIcons(),200);return{success:true,trackId:newId,trackName:cutName,cutStart:parseFloat(loopStart.toFixed(3)),cutEnd:parseFloat(loopEnd.toFixed(3)),duration:parseFloat(slicedBuffer.duration.toFixed(3))};},scanTrack:args=>{const tid=args.track_id||selectedTrackId;const track=tracks.find(t=>t.id===tid);if(!track)return{success:false,error:'Track not found'};if(!track.buffer)return{success:false,error:'Track has no audio buffer. Load audio first.'};const buffer=track.buffer;const data=buffer.getChannelData(0);const sr=buffer.sampleRate;const channels=buffer.numberOfChannels;const duration=buffer.duration;const totalSamples=buffer.length;const windowSize=Math.min(sr*3,data.length);let detectedBPM=0;if(windowSize>sr){let maxCorr=0;for(let lag=Math.floor(sr*0.3);lag<=Math.floor(sr*2.0);lag++){let corr=0;const step=4;for(let i=0;imaxCorr){maxCorr=corr;detectedBPM=60/(lag/sr);}}}detectedBPM=Math.round(Math.min(300,Math.max(30,detectedBPM)));if(args.set_tempo!==false&&detectedBPM>0){setBpm(String(detectedBPM));}const bitDepth=16;const bitrate=Math.round(sr*channels*bitDepth/1000);return{success:true,trackId:tid,trackName:track.name,bpm:detectedBPM,sampleRate:sr,channels,duration:parseFloat(duration.toFixed(3)),totalSamples,bitDepth,bitrateKbps:bitrate,hasAudio:true};},setBpm:args=>{const bpmVal=args.bpm||args.tempo||120;setBpm(String(bpmVal));return{success:true,bpm:bpmVal};},setPlayhead:args=>{const barDur=60/parseInt(bpm||120)*4;let time;if(args.time!==undefined&&args.time!==null)time=args.time;else if(args.bar!==undefined&&args.bar!==null)time=args.bar*barDur;else time=0;handlePlayheadSet(time);return{success:true,time:parseFloat(time.toFixed(3))};},exportAudio:async args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let tid=args.track_id;if(tid&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(tid)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+tid===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){tid=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!tid)tid=currentSelTrackId;const track=tid&¤tTracks.find(t=>t.id===String(tid)||t.id==='track_'+tid);if(!track)return{success:false,error:'No track found'};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0&&(!track.midiItems||track.midiItems.length===0))return{success:false,error:'Track has no audio clips'};const beatsPerSec=parseFloat(bpm||120)/60;const totalDuration=Math.max(clips.length>0?Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration/(c.speed||1.0):0))):0,...(track.midiItems||[]).map(m=>(m.startTime||0)+(m.duration||4)),...(track.sections||[]).map(s=>(s.start||0)+(s.duration||4)));const barDur=60/parseInt(bpm||120)*4;const sel=selectionRef.current;let rawStart,rawEnd;if(args.start_time!==undefined)rawStart=args.start_time;else if(args.start_bar!==undefined)rawStart=args.start_bar*barDur;else if(sel.start!==null)rawStart=sel.start;else rawStart=0;if(args.end_time!==undefined)rawEnd=args.end_time;else if(args.length_bars!==undefined)rawEnd=(rawStart||0)+args.length_bars*barDur;else if(args.end_bar!==undefined)rawEnd=args.end_bar*barDur;else if(sel.end!==null&&sel.end>rawStart)rawEnd=sel.end;else rawEnd=totalDuration;if(rawEnd<=rawStart)return{success:false,error:'Export range is empty or invalid.'};const ctx=getAudioContext();const sr=parseInt(args.sample_rate||'44100');const firstBuffer=clips.find(c=>c.buffer)?.buffer;const numCh=args.channels==='mono'?1:firstBuffer?firstBuffer.numberOfChannels:2;const bd=parseInt(args.bit_depth||'16');const fmt=args.format||'wav';const renderLength=rawEnd-rawStart;const offlineCtx=new OfflineAudioContext(numCh,Math.ceil(sr*renderLength),sr);clips.forEach(clip=>{if(!clip.buffer)return;const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(clipEnd<=rawStart||clipStart>=rawEnd)return;const source=offlineCtx.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(offlineCtx.destination);if(rawStart{for(let i=0;i>8&0xFF);vw.setUint8(ofs+2,v24>>16&0xFF);}ofs+=bps;}}const blob=new Blob([fileBuf],{type:'audio/wav'});const localUrl=URL.createObjectURL(blob);const targetFilename=`export_${Date.now()}.${fmt}`;const triggerDownload=(downloadUrl,finalFilename)=>{if(window.DAWCommandDispatcher?.isExecutingAI){showToast(`Xuất nhạc thành công (${fmt.toUpperCase()})!`,"success","Tải về",()=>{const a=document.createElement('a');a.href=downloadUrl;a.download=finalFilename;a.click();if(downloadUrl.startsWith('blob:')){URL.revokeObjectURL(downloadUrl);}});}else{const a=document.createElement('a');a.href=downloadUrl;a.download=finalFilename;a.click();showToast("Xuất bản âm thanh hoàn tất!","success");if(downloadUrl.startsWith('blob:')){URL.revokeObjectURL(downloadUrl);}}};if((fmt==='mp3'||fmt==='ogg')&&serverStatus==='connected'){try{const file=new File([blob],`export_ai.wav`,{type:'audio/wav'});const formData=new FormData();formData.append('file',file);const uploadResp=await fetch(`${API_AUDIO}/upload`,{method:'POST',body:formData});if(!uploadResp.ok)throw new Error("Upload failed");const uploadData=await uploadResp.json();const uploadId=uploadData.file_id;const exportResp=await fetch(`${API_AUDIO}/export`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({file_id:uploadId,format:fmt,sample_rate:sr,bit_depth:bd})});if(!exportResp.ok)throw new Error("Export failed");const exportData=await exportResp.json();const result=await pollTaskResult(exportData.task_id,20);if(result.success){const downloadUrl=`${API_AUDIO}/download/${result.output_file_id}`;triggerDownload(downloadUrl,targetFilename);}else{throw new Error(result.error||'Server encoding failed');}}catch(transcodeErr){showToast(`Lỗi chuyển đổi: ${transcodeErr.message}. Tải về dạng WAV thay thế.`,"warning");triggerDownload(localUrl,`export_${Date.now()}.wav`);}}else{const finalFilename=fmt==='wav'?`export_${Date.now()}.wav`:`export_${Date.now()}.wav`;if(fmt!=='wav'){showToast("Đang ngoại tuyến. Tải về định dạng WAV thay thế.","warning");}triggerDownload(localUrl,finalFilename);}return{success:true,trackId:tid,range:parseFloat((rawEnd-rawStart).toFixed(3))+'s',format:fmt,channels:numCh===1?'mono':'stereo'};},selectItem:args=>{if(args.select_all){setSelectedTrackId(null);clearLocalSelection();setSelectionMode('global');setSelectionStart(0);const maxDur=tracks.reduce((max,t)=>{const dur=t.buffer?t.buffer.duration:0;const clips=t.clips||[];const clipMax=clips.reduce((m,c)=>Math.max(m,(c.startTime||0)+(c.buffer?c.buffer.duration:0)),0);return Math.max(max,dur,clipMax);},0);setSelectionEnd(Math.max(maxDur,currentTime+10));return{success:true,selection:'all',duration:parseFloat(Math.max(maxDur,currentTime+10).toFixed(3))};}const tid=args.track_id||selectedTrackId;const track=tracks.find(t=>t.id===tid);if(!track)return{success:false,error:`Track ${tid} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,name:track.name,buffer:track.buffer,startTime:track.startTime||0}]:[];if(args.item_name){const match=clips.find(c=>c.name&&c.name.toLowerCase().includes(args.item_name.toLowerCase()));if(!match)return{success:false,error:`No clip matching "${args.item_name}" on track ${track.name}`};setSelectedTrackId(tid);clearLocalSelection();setSelectionMode('global');const start=match.startTime||0;const end=start+(match.buffer?match.buffer.duration:2);setSelectionStart(start);setSelectionEnd(end);return{success:true,trackId:tid,trackName:track.name,clipId:match.id,clipName:match.name,start:parseFloat(start.toFixed(3)),end:parseFloat(end.toFixed(3))};}setSelectedTrackId(tid);clearLocalSelection();setSelectionMode('global');const trackEnd=track.buffer?track.buffer.duration:clips.length>0?Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration:0))):4;setSelectionStart(0);setSelectionEnd(trackEnd);return{success:true,trackId:tid,trackName:track.name,duration:parseFloat(trackEnd.toFixed(3))};},addMarker:args=>{const trackId=args.track_id||selectedTrackId;const time=args.time??currentTime;const track=tracks.find(t=>t.id===trackId);if(!track)return{success:false,error:'Track not found'};setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,markers:[...(t.markers||[]),{id:'ai_marker_'+Date.now(),time,label:args.label||'AI Marker'}]};}));return{success:true,trackId,time};},fadeIn:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let trackIdRaw=args.track_id;if(trackIdRaw&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(trackIdRaw)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+trackIdRaw===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){trackIdRaw=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!trackIdRaw)trackIdRaw=currentSelTrackId;const track=currentTracks.find(t=>t.id===String(trackIdRaw)||t.id==='track_'+trackIdRaw);if(!track)return{success:false,error:`Track ${trackIdRaw} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'No clips on track'};let clip=null;if(args.clip_id){clip=clips.find(c=>c.id===args.clip_id);}else if(args.clip_index!==undefined){const idx=parseInt(args.clip_index);const realIdx=idx>0?idx-1:0;clip=clips[realIdx]||clips[0];}else{clip=clips[0];}if(!clip||!clip.buffer)return{success:false,error:'Clip has no audio buffer'};const duration=parseFloat(args.duration_seconds||3);const buffer=clip.buffer;const sr=buffer.sampleRate;const numChannels=buffer.numberOfChannels;const length=buffer.length;const ctx=getAudioContext();const newBuffer=ctx.createBuffer(numChannels,length,sr);for(let c=0;c{if(t.id!==track.id)return t;const existingClips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];const updatedClips=existingClips.map(c=>{if(c.id===clip.id||clip.id.startsWith('default_')&&c.id==='default'){return{...c,buffer:newBuffer};}return c;});const mainBuffer=updatedClips[0]?.buffer||t.buffer;return{...t,clips:updatedClips,buffer:mainBuffer};});if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;}setTracks(nextTracks);setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('AI_FADE_IN',track.id,beforeSnap,afterSnap);},50);return{success:true,trackId:track.id,clipId:clip.id,duration_seconds:duration};},fadeOut:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let trackIdRaw=args.track_id;if(trackIdRaw&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(trackIdRaw)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+trackIdRaw===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){trackIdRaw=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!trackIdRaw)trackIdRaw=currentSelTrackId;const track=currentTracks.find(t=>t.id===String(trackIdRaw)||t.id==='track_'+trackIdRaw);if(!track)return{success:false,error:`Track ${trackIdRaw} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'No clips on track'};let clip=null;if(args.clip_id){clip=clips.find(c=>c.id===args.clip_id);}else if(args.clip_index!==undefined){const idx=parseInt(args.clip_index);const realIdx=idx>0?idx-1:0;clip=clips[realIdx]||clips[0];}else{clip=clips[0];}if(!clip||!clip.buffer)return{success:false,error:'Clip has no audio buffer'};const duration=parseFloat(args.duration_seconds||3);const buffer=clip.buffer;const sr=buffer.sampleRate;const numChannels=buffer.numberOfChannels;const length=buffer.length;const ctx=getAudioContext();const newBuffer=ctx.createBuffer(numChannels,length,sr);for(let c=0;c{if(t.id!==track.id)return t;const existingClips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];const updatedClips=existingClips.map(c=>{if(c.id===clip.id||clip.id.startsWith('default_')&&c.id==='default'){return{...c,buffer:newBuffer};}return c;});const mainBuffer=updatedClips[0]?.buffer||t.buffer;return{...t,clips:updatedClips,buffer:mainBuffer};});if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;}setTracks(nextTracks);setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('AI_FADE_OUT',track.id,beforeSnap,afterSnap);},50);return{success:true,trackId:track.id,clipId:clip.id,duration_seconds:duration};},generateMultitrackMidi:args=>{const{composition_title,bpm:aiBpm,total_bars,tracks:aiTracks}=args;if(aiBpm){setBpm(aiBpm.toString());}const bpmVal=aiBpm||parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;const secondsPerBar=secondsPerBeat*4;const durationSec=total_bars*secondsPerBar;updateActiveTracks(prev=>{let updatedTracks=[...prev];aiTracks.forEach(aiTrack=>{let targetTrack=updatedTracks.find(t=>t.name.toLowerCase()===aiTrack.track_name.toLowerCase());if(!targetTrack){const newId=(updatedTracks.length+1).toString();const colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309'];const selectColor=colors[updatedTracks.length%colors.length];targetTrack={id:newId,name:aiTrack.track_name,type:'MIDI',volumeDb:0,pan:0,muted:false,solo:false,color:selectColor,markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}};updatedTracks.push(targetTrack);}const itemStartTimeSec=currentTime;const newMidiItem={id:'item_ai_'+Date.now()+'_'+Math.random().toString(36).substr(2,5),name:`${composition_title||'AI Theme'} - ${aiTrack.track_name}`,startTime:itemStartTimeSec,duration:durationSec,notes:aiTrack.notes.map((note,index)=>({id:`note_ai_${Date.now()}_${index}`,pitch:note.pitch,start_beat:note.start_beat,duration_beats:note.duration_beats,velocity:note.velocity||0.8,pan:0.0}))};targetTrack.midiItems=[...(targetTrack.midiItems||[]),newMidiItem];});return updatedTracks;});showToast(`Đã nạp ${aiTracks.length} tracks MIDI thế hệ AI!`,'success');return{success:true};},createMidiItem:args=>{const trackId=args.track_id||selectedTrackId;if(!trackId)return{success:false,error:'No track_id provided'};const secondsPerBar=60.0/(parseInt(bpm)||120)*4;const startBar=args.start_bar!==undefined?parseFloat(args.start_bar):0;const lengthBars=args.length_bars!==undefined?parseFloat(args.length_bars):4;const midiItem={id:`midi_${Date.now()}_${Math.random().toString(36).substr(2,5)}`,name:'MIDI Item',startTime:startBar*secondsPerBar,duration:lengthBars*secondsPerBar,notes:[],color:'#a78bfa'};updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId&&t.id!=='track_'+trackId)return t;return{...t,midiItems:[...(t.midiItems||[]),midiItem]};}));return{success:true,itemId:midiItem.id,trackId};},modifyMidiNotes:args=>{const itemId=args.item_id;if(!itemId)return{success:false,error:'No item_id provided'};const noteNameToMidi=name=>{if(typeof name==='number')return name;if(!name||typeof name!=='string')return 60;const match=name.match(/^([A-Ga-g]#?|b?)(-?\d+)$/);if(!match){const num=parseInt(name);return isNaN(num)?60:num;}const noteNames={'c':0,'c#':1,'db':1,'d':2,'d#':3,'eb':3,'e':4,'f':5,'f#':6,'gb':6,'g':7,'g#':8,'ab':8,'a':9,'a#':10,'bb':10,'b':11};const key=match[1].toLowerCase();const octave=parseInt(match[2]);const base=noteNames[key]!==undefined?noteNames[key]:0;return(octave+1)*12+base;};const newNotes=(args.notes||[]).map((n,index)=>({id:`note_mod_${Date.now()}_${index}`,pitch:noteNameToMidi(n.pitch),start_beat:parseFloat(n.start_time||0),duration_beats:parseFloat(n.duration||1),velocity:n.velocity!==undefined?n.velocity/127.0:0.8,pan:0.0}));updateActiveTracks(prev=>prev.map(t=>{const items=t.midiItems||[];const exists=items.some(m=>m.id===itemId);if(!exists)return t;return{...t,midiItems:items.map(m=>m.id===itemId?{...m,notes:newNotes}:m)};}));return{success:true,itemId};}};window.DAWCommandDispatcher.registerDAWCommands(api);},[tracks,selectedTrackId,currentTime,bpm]);// ── Save AI config to localStorage ── useEffect(()=>{localStorage.setItem('ai_base_url',aiConfig.baseUrl);localStorage.setItem('ai_api_key',aiConfig.apiKey);localStorage.setItem('ai_model',aiConfig.model);},[aiConfig]);// ── Auto-save user preferences (panel state, provider) ── -const 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Wrapper `h-10 shrink-0 overflow-hidden` để không đẩy track lanes lệch TCP. Clamp selLeft/selRight/ruler handlers >= 0 để selection không vào vùng âm. +- **Các file ảnh hưởng:** `app/static/js/app.jsx`, `app/static/js/app.precompiled.js` +- **Ghi chú/Test (nếu có):** `npm run build` — build passes. +--- + ### [2026-07-25 10:44] Task: Zero lead-in, time ruler + tempo track split layout - **Tóm tắt thay đổi:** Xóa leadInMargin (về 0) — time 0 tại mép trái, chỉ còn 8px PADDING_LEFT. TimelineRuler đơn giản thành time-only ruler (40px, chỉ hiển thị time labels). Thêm TempoTrackLane ngay dưới (40px, bars/beats/BPM). Selection overlay top từ 48→80px. Đồng bộ WaveformLane PADDING_LEFT=8/zoom. - **Các file ảnh hưởng:** `app/static/js/app.jsx`, `app/static/js/app.precompiled.js`