diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index 1a9c362..7402ca1 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -114,8 +114,8 @@ let working=[...merged];let dragIdx=working.findIndex(n=>n.time===newNode.time&& subTabAnchorRef.current=startTime;setSelectedNodeTime(null);onSelectRange(startTime,startTime);onPlayheadSet(startTime);const handleMouseMove=moveEvent=>{const currentX=moveEvent.clientX-rect.left+scrollLeft;const ct=Math.max(0,Math.min(wallDuration,currentX/zoom));const anchor=subTabAnchorRef.current??startTime;onSelectRange(Math.min(anchor,ct),Math.max(anchor,ct));};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleContextMenuInternal=e=>{e.preventDefault();e.stopPropagation();const canvas=canvasRef.current;const rect=canvas.getBoundingClientRect();const parent=canvas.parentElement;const scrollContainer=parent?parent.parentElement:null;const scrollLeft=scrollContainer?scrollContainer.scrollLeft:0;const x=e.clientX-rect.left+scrollLeft;const clickTime=Math.max(0,Math.min(buffer.duration/(speed||1.0),x/zoom));onContextMenu(e,clickTime);};// Double-click on automation curve to create a new node const handleDoubleClick=e=>{const canvas=canvasRef.current;if(!canvas||!buffer)return;if(activeTool!=='select'&&activeTool!=='pen')return;const rect=canvas.getBoundingClientRect();const parent=canvas.parentElement;const scrollContainer=parent?parent.parentElement:null;const scrollLeft=scrollContainer?scrollContainer.scrollLeft:0;const x=e.clientX-rect.left+scrollLeft;const clickTime=Math.max(0,Math.min(buffer.duration/(speed||1.0),x/zoom));const isPan=(graphMode||'volume')==='pan';const curNodes=isPan?panningNodes:volumeNodes;const cTop=8;const cHeight=rect.height-16;const valFromY=y=>{if(isPan)return Math.max(-1,Math.min(1,-(y-cTop)/cHeight*2+1));const yOff=(y-cTop)/cHeight;return yOff<=2/3?Math.max(0,Math.min(3,3*(1-yOff*3/2))):Math.max(-30,Math.min(0,-30*(yOff-2/3)*3));};// Interpolate value at click position from existing curve let interpolatedVal=valFromY(e.clientY-rect.top);if(curNodes.length>=2){const sorted=[...curNodes].sort((a,b)=>a.time-b.time);for(let i=0;i=sorted[i].time&&clickTime<=sorted[i+1].time){const t=(clickTime-sorted[i].time)/(sorted[i+1].time-sorted[i].time);const v1=isPan?sorted[i].pan:sorted[i].db;const v2=isPan?sorted[i+1].pan:sorted[i+1].db;interpolatedVal=v1+t*(v2-v1);break;}}}const newNode=isPan?{time:+Math.round(clickTime*10)/10,pan:+Math.round(interpolatedVal*20)/20}:{time:+Math.round(clickTime*10)/10,db:+Math.round(interpolatedVal*2)/2};const merged=(()=>{const map=new Map();curNodes.forEach(n=>map.set(n.time,n));map.set(newNode.time,newNode);return Array.from(map.values()).sort((a,b)=>a.time-b.time);})();if(onUpdateNodes)onUpdateNodes(merged);};return/*#__PURE__*/React.createElement("div",{style:{width:`${timelineWidth}px`,height:'100%',position:'relative',overflow:'hidden'}},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,style:{position:'absolute',top:0,left:0,imageRendering:'pixelated'},className:"cursor-crosshair rounded border border-zinc-800",onMouseDown:handleMouseDown,onDoubleClick:handleDoubleClick,onContextMenu:handleContextMenuInternal,onMouseMove:e=>{if(canvasRef.current&&e.altKey&&onSpeedChange){const rect=canvasRef.current.getBoundingClientRect();const parent=canvasRef.current.parentElement;const scrollContainer=parent?parent.parentElement:null;const scrollLeft=scrollContainer?scrollContainer.scrollLeft:0;const mx=e.clientX-rect.left+scrollLeft;const wClip=buffer.duration/speed*zoom;const tolerance=8;canvasRef.current.style.cursor=Math.abs(mx-wClip)<=tolerance&&!isStretchingRef.current?'ew-resize':'crosshair';}else if(canvasRef.current&&!isStretchingRef.current){const rect=canvasRef.current.getBoundingClientRect();const parent=canvasRef.current.parentElement;const scrollContainer=parent?parent.parentElement:null;const scrollLeft=scrollContainer?scrollContainer.scrollLeft:0;const mx=e.clientX-rect.left+scrollLeft;const wClipPx=buffer.duration/(speed||1.0)*zoom;const cH=canvasRef.current.height/(window.devicePixelRatio||1)-16;const btnX=wClipPx-28-4;const btnY=8+cH-14-2;const overBtn=mx>=btnX&&mx<=btnX+28&&e.clientY-rect.top>=btnY&&e.clientY-rect.top<=btnY+14;canvasRef.current.style.cursor=overBtn?'pointer':'crosshair';}}}));};const SubTabToolbar=({st,activeTool,setActiveTool,handleSubTabNormalizeWithValue,handleSubTabGainWithValue,handleSubTabPitch,handleSubTabStretch,handleSubTabFade,onPlayPause,onStop,onRewind,onForward,onLoop,onRecord,onRateChange,onCut,onCopy,onPaste,onGlue,snapValue,onSnapChange})=>{const isPlaying=st?.isPlaying||false;const isLooping=st?.isLooping||false;const isRecording=st?.isRecording||false;return/*#__PURE__*/React.createElement("div",{className:"daw-header flex h-16 items-center px-4 border-b daw-border gap-3 bg-zinc-800"},/*#__PURE__*/React.createElement("div",{className:"flex items-center space-x-1 border-r border-zinc-700 pr-3"},/*#__PURE__*/React.createElement("button",{className:`p-1 rounded ${activeTool==='select'?'bg-cyan-700':'bg-zinc-700'}`,onClick:()=>setActiveTool('select'),title:"Select Tool"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"mouse-pointer",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("button",{className:`p-1 rounded ${activeTool==='grab'?'bg-cyan-700':'bg-zinc-700'}`,onClick:()=>setActiveTool('grab'),title:"Grab Tool"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"hand",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("button",{className:`p-1 rounded ${activeTool==='razor'?'bg-cyan-700':'bg-zinc-700'}`,onClick:()=>setActiveTool('razor'),title:"Razor Tool"},/*#__PURE__*/React.createElement("svg",{className:"w-4 h-4 text-orange-400",viewBox:"0 0 24 24",fill:"none",stroke:"currentColor",strokeWidth:"2.5",strokeLinecap:"round",strokeLinejoin:"round"},/*#__PURE__*/React.createElement("path",{d:"M6 3h12a2 2 0 0 1 2 2v2a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2z"}),/*#__PURE__*/React.createElement("path",{d:"M4 9h16l-3 9H7z"}),/*#__PURE__*/React.createElement("circle",{cx:"12",cy:"6",r:"1"}))),/*#__PURE__*/React.createElement("button",{className:`p-1 rounded ${activeTool==='pen'?'bg-cyan-700':'bg-zinc-700'}`,onClick:()=>setActiveTool('pen'),title:"Pen Tool"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"pen-tool",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("div",{className:"w-[1px] h-4 bg-zinc-800 mx-0.5"}),/*#__PURE__*/React.createElement("button",{onClick:onGlue,className:"p-0.5 rounded text-zinc-400 hover:bg-zinc-800 hover:text-purple-400 transition",title:"Glue Clips"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"link",className:"w-3.5 h-3.5"}))),/*#__PURE__*/React.createElement("button",{onClick:onCut,className:"p-0.5 rounded text-zinc-400 hover:bg-zinc-800 hover:text-red-400 transition",title:"Cut (Ctrl+X)"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"scissors",className:"w-3.5 h-3.5"}))),/*#__PURE__*/React.createElement("button",{onClick:onCopy,className:"p-0.5 rounded text-zinc-400 hover:bg-zinc-800 hover:text-blue-400 transition",title:"Copy (Ctrl+C)"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"copy",className:"w-3.5 h-3.5"}))),/*#__PURE__*/React.createElement("button",{onClick:onPaste,className:"p-0.5 rounded text-zinc-400 hover:bg-zinc-800 hover:text-emerald-400 transition",title:"Paste (Ctrl+V)"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"clipboard",className:"w-3.5 h-3.5"})))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 border-r border-zinc-700 pr-3"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-500 font-bold uppercase"},"Snap"),/*#__PURE__*/React.createElement("select",{value:snapValue||'free',onChange:e=>onSnapChange(e.target.value),className:"bg-zinc-850 text-zinc-300 text-xs px-1 py-0.5 rounded border border-zinc-800 focus:outline-none font-mono"},/*#__PURE__*/React.createElement("option",{value:"free"},"Free"),/*#__PURE__*/React.createElement("option",{value:"4"},"4"),/*#__PURE__*/React.createElement("option",{value:"1"},"1"),/*#__PURE__*/React.createElement("option",{value:"1/2"},"1/2"),/*#__PURE__*/React.createElement("option",{value:"1/4"},"1/4"),/*#__PURE__*/React.createElement("option",{value:"1/8"},"1/8"),/*#__PURE__*/React.createElement("option",{value:"1/16"},"1/16"),/*#__PURE__*/React.createElement("option",{value:"1/32"},"1/32"))),/*#__PURE__*/React.createElement("div",{className:"flex items-center space-x-2 flex-1 overflow-x-auto no-scrollbar"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-400"},"Normalize:"),/*#__PURE__*/React.createElement("input",{type:"range",min:"-12",max:"0",value:st.effects?.normalizeDb||0,step:"0.1",onChange:e=>handleSubTabNormalizeWithValue(st.id,parseFloat(e.target.value)),className:"w-20 h-1.5"}),/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-500 w-10 text-right"},st.effects?.normalizeDb||0," dB")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-400"},"Gain:"),/*#__PURE__*/React.createElement("input",{type:"range",min:"-40",max:"24",value:st.effects?.gainDb||0,step:"0.1",onChange:e=>handleSubTabGainWithValue(st.id,parseFloat(e.target.value)),className:"w-20 h-1.5"}),/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-500 w-10 text-right"},st.effects?.gainDb||0," dB")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-400"},"Pitch:"),/*#__PURE__*/React.createElement("input",{type:"range",min:"-12",max:"12",value:st.effects?.pitch||0,step:"0.1",onChange:e=>handleSubTabPitch(st.id,parseFloat(e.target.value)),className:"w-20 h-1.5"}),/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-500 w-10 text-right"},st.effects?.pitch||0," st")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-400"},"Stretch:"),/*#__PURE__*/React.createElement("input",{type:"range",min:"50",max:"200",value:st.effects?.speedStretch||100,step:"1",onChange:e=>handleSubTabStretch(st.id,parseInt(e.target.value)),className:"w-20 h-1.5"}),/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-500 w-10 text-right"},st.effects?.speedStretch||100,"%"))),/*#__PURE__*/React.createElement("div",{className:"flex items-center space-x-1 border-r border-zinc-700 pr-3"},/*#__PURE__*/React.createElement("button",{onClick:()=>handleSubTabFade(st.id,'in'),className:"px-2 py-1 text-xs rounded hover:bg-zinc-700"},"Fade In"),/*#__PURE__*/React.createElement("button",{onClick:()=>handleSubTabFade(st.id,'out'),className:"px-2 py-1 text-xs rounded hover:bg-zinc-700"},"Fade Out")),/*#__PURE__*/React.createElement("div",{className:"flex items-center space-x-1 border-r border-zinc-700 pr-3"},/*#__PURE__*/React.createElement("button",{onClick:onRewind,className:"w-8 h-8 flex items-center justify-center bg-zinc-800 hover:bg-zinc-700 text-zinc-200 rounded border border-zinc-700 transition",title:"Rewind"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"skip-back",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("button",{onClick:onPlayPause,className:`w-8 h-8 flex items-center justify-center rounded border transition ${isPlaying?'bg-emerald-600 text-black border-emerald-500 hover:bg-emerald-500':'bg-cyan-600 text-white border-cyan-500 hover:bg-cyan-500'}`,title:isPlaying?"Pause":"Play"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":isPlaying?'pause':'play',className:"w-4 h-4 fill-current"}))),/*#__PURE__*/React.createElement("button",{onClick:onStop,className:"w-8 h-8 flex items-center justify-center bg-zinc-800 hover:bg-zinc-700 text-zinc-200 rounded border border-zinc-700 transition",title:"Stop"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"square",className:"w-4 h-4 fill-current"}))),/*#__PURE__*/React.createElement("button",{onClick:onForward,className:"w-8 h-8 flex items-center justify-center bg-zinc-800 hover:bg-zinc-700 text-zinc-200 rounded border border-zinc-700 transition",title:"Forward"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"skip-forward",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("button",{onClick:onLoop,className:`w-8 h-8 flex items-center justify-center rounded border transition ${isLooping?'bg-amber-600 text-black border-amber-500 hover:bg-amber-500':'bg-zinc-800 text-zinc-200 border-zinc-700 hover:bg-zinc-700'}`,title:isLooping?"Loop On":"Loop Off"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"repeat",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("button",{onClick:onRecord,className:`w-8 h-8 flex items-center justify-center rounded border transition ${isRecording?'bg-red-600 text-white border-red-500':'bg-zinc-800 text-zinc-200 border-zinc-700 hover:bg-zinc-700'}`,title:isRecording?"Recording":"Record"},/*#__PURE__*/React.createElement("span",{className:"inline-flex items-center shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"circle",className:"w-4 h-4"})))),/*#__PURE__*/React.createElement("div",{className:"flex items-center space-x-1"},/*#__PURE__*/React.createElement("span",{className:"text-xs text-zinc-400"},"Rate:"),/*#__PURE__*/React.createElement("select",{value:st.playbackRate||1,onChange:e=>onRateChange(parseFloat(e.target.value)),className:"bg-zinc-700 text-zinc-100 text-xs px-1 py-0.5 rounded border border-zinc-600"},/*#__PURE__*/React.createElement("option",{value:"0.5"},"0.5x"),/*#__PURE__*/React.createElement("option",{value:"0.75"},"0.75x"),/*#__PURE__*/React.createElement("option",{value:"1"},"1x"),/*#__PURE__*/React.createElement("option",{value:"1.25"},"1.25x"),/*#__PURE__*/React.createElement("option",{value:"1.5"},"1.5x"),/*#__PURE__*/React.createElement("option",{value:"2"},"2x"))));};// ── Graph Editor Canvas for Volume/Pan/Fade Automation ── -const GraphEditorCanvas=({buffer,zoom,timelineWidth,volumeNodes,panningNodes,fadeInLen,fadeOutLen,onUpdateNodes,graphMode})=>{const canvasRef=useRef(null);const isDraggingNode=useRef(false);const dragNodeIdx=useRef(-1);const isCreatingNode=useRef(false);const getNodes=()=>graphMode==='pan'?panningNodes:volumeNodes;const nodeLabel=n=>graphMode==='pan'?`${n.pan.toFixed(2)}`:`${n.db.toFixed(1)}dB`;const nodeY=(n,h)=>{if(graphMode==='pan')return(1-(n.pan+1)/2)*h;const zeroY=2/3*h;return n.db>=0?zeroY-n.db/3*(2/3*h):zeroY+-n.db/30*(1/3*h);};const nodeValFromY=(y,h)=>{if(graphMode==='pan')return-(y/h*2-1);const yOff=y/h;return yOff<=2/3?3*(1-yOff*3/2):-30*(yOff-2/3)*3;};useEffect(()=>{const canvas=canvasRef.current;if(!canvas||!buffer)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const wrapper=canvas.parentElement?canvas.parentElement.parentElement:null;const scrollLeft=wrapper?wrapper.scrollLeft:0;const vWidth=wrapper?wrapper.clientWidth:1200;const drawWidth=Math.min(timelineWidth,Math.max(vWidth,1200));const h=canvas.parentElement?canvas.parentElement.clientHeight:200;canvas.width=Math.round(drawWidth*dpr);canvas.height=Math.round(h*dpr);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.position='absolute';canvas.style.left=`${scrollLeft}px`;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${h}px`;ctx.fillStyle='#1a1a2e';ctx.fillRect(0,0,drawWidth,h);ctx.strokeStyle='#2a2a4e';ctx.lineWidth=0.5;for(let t=0;t<=buffer.duration;t+=0.5){const x=t/buffer.duration*drawWidth;ctx.beginPath();ctx.moveTo(x,0);ctx.lineTo(x,h);ctx.stroke();}for(let i=0;i<=10;i++){const y=i/10*h;ctx.beginPath();ctx.moveTo(0,y);ctx.lineTo(drawWidth,y);ctx.stroke();}if(fadeInLen>0){const fadeX=fadeInLen/buffer.duration*drawWidth;ctx.fillStyle='rgba(16, 185, 129, 0.12)';ctx.fillRect(0,0,fadeX,h);}if(fadeOutLen>0){const fadeX=(buffer.duration-fadeOutLen)/buffer.duration*drawWidth;const fadeW=fadeOutLen/buffer.duration*drawWidth;ctx.fillStyle='rgba(239, 68, 68, 0.12)';ctx.fillRect(fadeX,0,fadeW,h);}const nodes=getNodes();if(nodes.length>0){ctx.strokeStyle=graphMode==='pan'?'#a855f7':'#06b6d4';ctx.lineWidth=2;ctx.beginPath();nodes.forEach((n,i)=>{const x=n.time/buffer.duration*drawWidth;const y=nodeY(n,h);if(i===0)ctx.moveTo(x,y);else ctx.lineTo(x,y);});ctx.stroke();nodes.forEach((n,i)=>{const x=n.time/buffer.duration*drawWidth;const y=nodeY(n,h);ctx.fillStyle=graphMode==='pan'?'#a855f7':'#06b6d4';ctx.beginPath();ctx.arc(x,y,5,0,Math.PI*2);ctx.fill();ctx.fillStyle='#e4e4e7';ctx.font='9px monospace';ctx.fillText(nodeLabel(n),x+8,y+3);});}else{ctx.fillStyle='#52525b';ctx.font='11px sans-serif';ctx.textAlign='center';ctx.fillText(graphMode==='pan'?'Click to add Pan points':'Click to add Volume points',drawWidth/2,h/2);ctx.textAlign='start';}const zeroY=graphMode==='pan'?h/2:nodeY({db:0},h);ctx.strokeStyle=graphMode==='pan'?'#a855f744':'#06b6d444';ctx.lineWidth=1;ctx.setLineDash([4,4]);ctx.beginPath();ctx.moveTo(0,zeroY);ctx.lineTo(drawWidth,zeroY);ctx.stroke();ctx.setLineDash([]);},[buffer,zoom,timelineWidth,volumeNodes,panningNodes,fadeInLen,fadeOutLen,graphMode]);const handleMouseDown=e=>{const canvas=canvasRef.current;if(!canvas||!buffer)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const time=x/rect.width*buffer.duration;const val=nodeValFromY(y,rect.height);const nodes=getNodes();const snapped=Math.max(-30,Math.min(3,val));const snappedPan=Math.max(-1,Math.min(1,val));const threshold=12/rect.width*buffer.duration;const nearIdx=nodes.findIndex(n=>Math.abs(n.time-time)=0){isDraggingNode.current=true;dragNodeIdx.current=nearIdx;return;}const newNode=graphMode==='pan'?{time:+time.toFixed(3),pan:+snappedPan.toFixed(2)}:{time:+time.toFixed(3),db:+snapped.toFixed(1)};const sorted=[...nodes,newNode].sort((a,b)=>a.time-b.time);onUpdateNodes(sorted);const newIdx=sorted.findIndex(n=>n.time===newNode.time&&(graphMode==='pan'?n.pan:n.db)===(graphMode==='pan'?newNode.pan:newNode.db));isDraggingNode.current=true;dragNodeIdx.current=newIdx;isCreatingNode.current=true;};const handleMouseMove=e=>{if(!isDraggingNode.current||dragNodeIdx.current<0)return;const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const time=Math.max(0,Math.min(buffer.duration,x/rect.width*buffer.duration));const val=nodeValFromY(y,rect.height);const nodes=[...getNodes()];nodes[dragNodeIdx.current]=graphMode==='pan'?{time:+time.toFixed(3),pan:+Math.max(-1,Math.min(1,val)).toFixed(2)}:{time:+time.toFixed(3),db:+Math.max(-30,Math.min(3,val)).toFixed(1)};onUpdateNodes(nodes.sort((a,b)=>a.time-b.time));};const handleMouseUp=()=>{isDraggingNode.current=false;dragNodeIdx.current=-1;isCreatingNode.current=false;};const handleContextMenu=e=>{e.preventDefault();const canvas=canvasRef.current;if(!canvas||!buffer)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const time=x/rect.width*buffer.duration;const threshold=12/rect.width*buffer.duration;const nodes=getNodes();const nearIdx=nodes.findIndex(n=>Math.abs(n.time-time)=0)onUpdateNodes(nodes.filter((_,i)=>i!==nearIdx));};return/*#__PURE__*/React.createElement("div",{style:{width:`${timelineWidth}px`,height:'100%',position:'relative',overflow:'hidden'}},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,style:{position:'absolute',top:0,left:0,imageRendering:'pixelated'},className:"cursor-crosshair rounded border border-zinc-700",onMouseDown:handleMouseDown,onMouseMove:handleMouseMove,onMouseUp:handleMouseUp,onMouseLeave:handleMouseUp,onContextMenu:handleContextMenu}));};const AuthModal=({isOpen,mode,forceMandatory,onClose,onSuccess})=>{if(!isOpen)return 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flex-1 overflow-hidden',style:{minHeight:'300px'}},// Left sidebar React.createElement('div',{className:'w-40 shrink-0 border-r border-[#383838] bg-[#1a1a1a] p-3 flex flex-col gap-2'},['vst','soundfont'].map(tab=>React.createElement('button',{key:tab,onClick:()=>setPmTab(tab),className:`w-full py-2 text-xs font-bold rounded transition border ${pmTab===tab?tab==='vst'?'bg-violet-900 border-violet-700 text-violet-200':'bg-amber-900 border-amber-700 text-amber-200':'bg-zinc-800 border-transparent text-zinc-400 hover:text-zinc-200 hover:bg-zinc-700'} flex items-center gap-2 px-3`},React.createElement('i',{'data-lucide':tab==='vst'?'cpu':'music',className:'w-3.5 h-3.5'}),tab==='vst'?'VST Instruments':'SoundFonts'))),// Right content @@ -196,7 +196,7 @@ const handleSetTabColor=(tabId,tabType,color)=>{if(tabType==='session'){setSessi const[tempTabActive,setTempTabActive]=useState(false);const[tempTabBuffer,setTempTabBuffer]=useState(null);const[tempTabTrackId,setTempTabTrackId]=useState(null);const[tempTabOrigStart,setTempTabOrigStart]=useState(0);const[tempTabOrigEnd,setTempTabOrigEnd]=useState(0);const tempTabCanvasRef=useRef(null);// Effect parameters for temp tab const[tempTabEffects,setTempTabEffects]=useState({reverse:false,gainDb:0,fadeInMs:0,fadeOutMs:0});// ── Auth / User State ── const[currentUser,setCurrentUser]=useState(null);const[authModalOpen,setAuthModalOpen]=useState(false);const[authMode,setAuthMode]=useState('login');// 'login' | 'register' | 'force_change' -const[isMandatoryLogin,setIsMandatoryLogin]=useState(false);const[profileModalOpen,setProfileModalOpen]=useState(false);const[systemManagerModalOpen,setSystemManagerModalOpen]=useState(false);const[aiConfigModalOpen,setAiConfigModalOpen]=useState(false);const[aiPresetModalOpen,setAiPresetModalOpen]=useState(false);const[pluginManagerModalOpen,setPluginManagerModalOpen]=useState(false);const[pluginsData,setPluginsData]=useState(null);useEffect(()=>{const checkAuthStatus=async()=>{const savedToken=localStorage.getItem('sonic_token');if(!savedToken){setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);return;}try{const profile=await window.SonicAPI.getProfile();setCurrentUser(profile);localStorage.setItem('sonic_user',JSON.stringify(profile));if(profile.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);}}catch(err){const cached=localStorage.getItem('sonic_user');if(cached){try{setCurrentUser(JSON.parse(cached));}catch(_){}setIsMandatoryLogin(false);setAuthModalOpen(false);}else{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);}}};checkAuthStatus();},[]);const loadPendingSfsProject=()=>{const proj=window.__pendingSfsProject;if(!proj)return;try{let restoredTracks=[];let restoredBpm=bpm;let restoredSessionTabs=[];let restoredSubTabs=[];if(proj.main_session){const result=deserializeProjectFromSchema(proj);restoredTracks=result.tracks;restoredBpm=result.bpm;restoredSessionTabs=result.sessionTabs;restoredSubTabs=result.subTabs;}else{restoredTracks=(proj.tracks||[]).map(t=>{const{height:_h,...rest}=t;return{...rest,buffer:null,channelInfo:t.channelInfo||null,clips:t.clips||[],serverFileId:t.serverFileId||null};});}if(restoredTracks.length>0){setTracks(restoredTracks);setBpm(restoredBpm.toString());if(restoredSessionTabs.length>0){setSessionTabs(restoredSessionTabs);}if(restoredSubTabs.length>0){setSubTabs(restoredSubTabs);}showToast(`Đã tải dự án "${proj.metadata?.title||proj.name||'Dự án mới'}" từ liên kết .sfs thành công!`,"success");}}catch(e){showToast("Lỗi tải dự án từ .sfs","error");}finally{window.__pendingSfsProject=null;}};const handleAuthSuccess=user=>{setCurrentUser(user);if(user.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);loadPendingSfsProject();const loadPrefs=p=>{if(!p)return;if(p.showAIPanel!==undefined)setShowAIPanel(p.showAIPanel);if(p.showExportPanel!==undefined)setShowExportPanel(p.showExportPanel);if(p.showSelectionPanel!==undefined)setShowSelectionPanel(p.showSelectionPanel);if(p.showPythonToolsPanel!==undefined)setShowPythonToolsPanel(p.showPythonToolsPanel);if(p.showMediaExplorer!==undefined)setShowMediaExplorer(p.showMediaExplorer);if(p.showFxRack!==undefined)setShowFxRack(p.showFxRack);if(p.showMidiEvents!==undefined)setShowMidiEvents(p.showMidiEvents);if(p.panelPositions)setPanelPositions(p.panelPositions);if(p.rightSidebarWidth)setRightSidebarWidth(p.rightSidebarWidth);if(p.mediaExplorerHeight)setMediaExplorerHeight(p.mediaExplorerHeight);if(p.selectedProviderId)setSelectedProviderId(p.selectedProviderId);};(async()=>{try{const data=await window.SonicAPI.getPreferences();if(data&&data.preferences)loadPrefs(data.preferences);else{const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}}catch(e){const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){}})();}};const handleLogout=()=>{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);};// ── Temp project auto-save (local + server) ── +const[isMandatoryLogin,setIsMandatoryLogin]=useState(false);const[profileModalOpen,setProfileModalOpen]=useState(false);const[systemManagerModalOpen,setSystemManagerModalOpen]=useState(false);const[aiConfigModalOpen,setAiConfigModalOpen]=useState(false);const[aiPresetModalOpen,setAiPresetModalOpen]=useState(false);const[pluginManagerModalOpen,setPluginManagerModalOpen]=useState(false);const[pluginsData,setPluginsData]=useState(null);useEffect(()=>{const checkAuthStatus=async()=>{const savedToken=localStorage.getItem('sonic_token');if(!savedToken){setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);return;}try{const profile=await window.SonicAPI.getProfile();setCurrentUser(profile);localStorage.setItem('sonic_user',JSON.stringify(profile));if(profile.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);}}catch(err){const cached=localStorage.getItem('sonic_user');if(cached){try{setCurrentUser(JSON.parse(cached));}catch(_){}setIsMandatoryLogin(false);setAuthModalOpen(false);}else{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);}}};checkAuthStatus();},[]);const loadPendingSfsProject=()=>{const proj=window.__pendingSfsProject;if(!proj)return;try{let restoredTracks=[];let restoredBpm=bpm;let restoredSessionTabs=[];let restoredSubTabs=[];if(proj.main_session){const result=deserializeProjectFromSchema(proj);restoredTracks=result.tracks;restoredBpm=result.bpm;restoredSessionTabs=result.sessionTabs;restoredSubTabs=result.subTabs;}else{restoredTracks=(proj.tracks||[]).map(t=>{const{height:_h,...rest}=t;return{...rest,buffer:null,channelInfo:t.channelInfo||null,clips:t.clips||[],serverFileId:t.serverFileId||null};});}if(restoredTracks.length>0){setTracks(restoredTracks);setBpm(restoredBpm.toString());if(restoredSessionTabs.length>0){setSessionTabs(restoredSessionTabs);}if(restoredSubTabs.length>0){setSubTabs(restoredSubTabs);}showToast(`Đã tải dự án "${proj.metadata?.title||proj.name||'Dự án mới'}" từ liên kết .sfs thành công!`,"success");}}catch(e){showToast("Lỗi tải dự án từ .sfs","error");}finally{window.__pendingSfsProject=null;}};const handleAuthSuccess=user=>{setCurrentUser(user);if(user.must_change_password){setIsMandatoryLogin(true);setAuthMode('force_change');setAuthModalOpen(true);}else{setIsMandatoryLogin(false);setAuthModalOpen(false);loadPendingSfsProject();const loadPrefs=p=>{if(!p)return;if(p.showAIPanel!==undefined)setShowAIPanel(p.showAIPanel);if(p.showExportPanel!==undefined)setShowExportPanel(p.showExportPanel);if(p.showSelectionPanel!==undefined)setShowSelectionPanel(p.showSelectionPanel);if(p.showPythonToolsPanel!==undefined)setShowPythonToolsPanel(p.showPythonToolsPanel);if(p.showMediaExplorer!==undefined)setShowMediaExplorer(p.showMediaExplorer);if(p.showFxRack!==undefined)setShowFxRack(p.showFxRack);if(p.showMidiEvents!==undefined)setShowMidiEvents(p.showMidiEvents);if(p.panelPositions)setPanelPositions(p.panelPositions);if(p.rightSidebarWidth)setRightSidebarWidth(p.rightSidebarWidth);if(p.mediaExplorerHeight)setMediaExplorerHeight(p.mediaExplorerHeight);if(p.selectedProviderId)setSelectedProviderId(p.selectedProviderId);};(async()=>{try{const data=await window.SonicAPI.getPreferences();if(data&&data.preferences)loadPrefs(data.preferences);else{const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}}catch(e){const cached=localStorage.getItem('sonic_preferences');if(cached)loadPrefs(JSON.parse(cached));}try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){}try{window.SonicAPI.getSoundfontCatalog().then(cat=>{window.__soundfontCatalog=cat;}).catch(()=>{});}catch(e){}})();}};const handleLogout=()=>{localStorage.removeItem('sonic_token');localStorage.removeItem('sonic_user');setCurrentUser(null);setIsMandatoryLogin(true);setAuthMode('login');setAuthModalOpen(true);};// ── Temp project auto-save (local + server) ── useEffect(()=>{const serializeSafe=arr=>(arr||[]).map(t=>({id:t.id,name:t.name,startTime:t.startTime,height:t.height,volumeDb:t.volumeDb,pan:t.pan,muted:t.muted,solo:t.solo,color:t.color,markers:t.markers||[],serverFileId:t.serverFileId||null,channelInfo:t.channelInfo?{channels:t.channelInfo.channels,isStereo:t.channelInfo.isStereo,label:t.channelInfo.label}:null}));window.SonicStorage.scheduleTempAutoSave(()=>{return serializeProjectToSchema(currentProjectId||'temp_project',projectName||'Dự án tạm chưa lưu',bpm,tracks,subTabs,sessionTabs);});},[tracks,subTabs,sessionTabs]);// Lucide icons initialization useEffect(()=>{setTimeout(()=>{if(window.lucide){window.lucide.createIcons();}},50);},[activeTool,activeTab]);const timelineWrapperRef=useRef(null);const[timelineWrapperNode,setTimelineWrapperNode]=useState(null);const handleTimelineWrapperRef=useCallback(node=>{timelineWrapperRef.current=node;setTimelineWrapperNode(node);},[]);const tcpContainerRef=useRef(null);const[scrollLeft,setScrollLeft]=useState(0);const handleTimelineScroll=e=>{if(tcpContainerRef.current){tcpContainerRef.current.scrollTop=e.currentTarget.scrollTop;}setScrollLeft(e.currentTarget.scrollLeft);};const handleTCPScroll=e=>{if(timelineWrapperRef.current){timelineWrapperRef.current.scrollTop=e.currentTarget.scrollTop;}};const panelDropZoneRef=useRef(null);const startPanelDrag=(panelId,e)=>{panelDragRef.current={panelId,startX:e.clientX,startY:e.clientY};setPanelDropZone(null);setDragGhostPanel(panelId);setDragGhostPos({x:e.clientX-120,y:e.clientY-20});const onMove=ev=>{if(!panelDragRef.current||!workspaceRef.current)return;const rect=workspaceRef.current.getBoundingClientRect();const x=ev.clientX-rect.left;const y=ev.clientY-rect.top;const w=rect.width;const h=rect.height;const margin=60;let zone=null;if(x10)zone='left';else if(x>w-margin&&x10)zone='top';else if(y>h-margin&&y{if(panelDragRef.current){const pid=panelDragRef.current.panelId;const targetZone=panelDropZoneRef.current;if(targetZone&&targetZone!==panelPositions[pid]){setPanelPositions(prev=>({...prev,[pid]:targetZone}));}panelDragRef.current=null;panelDropZoneRef.current=null;setPanelDropZone(null);setDragGhostPos(null);setDragGhostPanel(null);}document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};// ── Right Sidebar Column Resizer ── const startColResize=e=>{e.preventDefault();const startX=e.clientX;const startWidth=rightSidebarWidth;const onMove=ev=>{const deltaX=startX-ev.clientX;const newWidth=Math.max(200,Math.min(600,startWidth+deltaX));setRightSidebarWidth(newWidth);};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};// ── TCP Resizer ── @@ -377,7 +377,7 @@ const handleAISend=async()=>{const prompt=aiPrompt.trim();if(!prompt){showToast( const activePianoRoll=subTabs.find(s=>s.id===activeTab&&s.type==='PIANO_ROLL');if(activePianoRoll){setAiProcessing(true);setAiActionLog(prev=>[...prev,{type:'status',text:` ⏳ Đang gửi prompt đến AI cho Piano Roll...`,time:Date.now()}]);try{if(aiProviders.length===0||!selectedProviderId){try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers&&data.providers.length>0){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){}}const prv=aiProviders.find(p=>p.id===selectedProviderId)||(aiProviders.length>0?aiProviders[0]:null);const provider=prv||aiConfig;const baseUrl=provider.api_base_url||provider.baseUrl||`${API_BASE_URL}`;const apiKey=provider.api_key||provider.apiKey||'';const model=provider.model_name||provider.model||'deepseek-chat';setAiActionLog(prev=>[...prev,{type:'info',text:` Provider: ${provider.name||'default'} | Model: ${model}`,time:Date.now()}]);const result=await window.AIGateway.executeAIPrompt({prompt:'Generate MIDI notes for a piano roll. Return ONLY a JSON array: [{pitch(0-127), start_beat, duration_beats, velocity(0.0-1.0)}]. '+prompt,provider:provider.name||'default',model:model,apiKey:apiKey,baseUrl:baseUrl.replace(/\/chat\/completions$/,'').replace(/\/$/,''),systemInstruction:'You are a MIDI composer. Output ONLY valid JSON array of notes. No markdown, no explanation. Use 4/4 time. pitch=C4=60, D4=62, E4=64, F4=65, G4=67, A4=69, B4=71, C5=72.'});if(!result)throw new Error('AI không phản hồi');let notesData=null;const textResp=result.textResponse||result.text||'';if(textResp&&typeof textResp==='string'){try{const cleaned=textResp.replace(/```json?\s*/g,'').replace(/```/g,'').trim();notesData=JSON.parse(cleaned);}catch(e1){console.error('Parse notes error:',e1);}}if(!notesData&&result.functionCalls){for(const fc of result.functionCalls){if(fc.arguments&&fc.arguments.notes){notesData=fc.arguments.notes;break;}}}if(Array.isArray(notesData)&¬esData.length>0){const newNotes=notesData.map((n,i)=>({id:'note_ai_'+Date.now()+'_'+i,pitch:Math.max(0,Math.min(127,n.pitch||60)),start_beat:Math.max(0,parseFloat(n.start_beat)||0),duration_beats:Math.max(0.125,parseFloat(n.duration_beats)||0.25),velocity:Math.max(0.1,Math.min(1.0,n.velocity??0.8)),pan:0.0}));setSubTabs(prev=>prev.map(s=>s.id===activePianoRoll.id?{...s,notes:[...(s.notes||[]),...newNotes],isDirty:true}:s));setAiActionLog(prev=>[...prev,{type:'status',text:` ✅ Đã thêm ${newNotes.length} notes vào Piano Roll`,time:Date.now()}]);setCanvasRedrawCount(n=>n+1);}else{setAiActionLog(prev=>[...prev,{type:'error',text:` ❌ AI không trả về notes hợp lệ.`,time:Date.now()}]);}}catch(err){setAiActionLog(prev=>[...prev,{type:'error',text:` ❌ Lỗi: ${err.message}`,time:Date.now()}]);}setAiProcessing(false);return;}if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentSelectedTrackId=selectedTrackId;window.DAWCommandDispatcher.currentTracks=activeTracks;window.DAWCommandDispatcher.lastCutSourceTrackId=null;window.DAWCommandDispatcher.lastCutNewTrackId=null;}setAiProcessing(true);setAiActionLog(prev=>[...prev,{type:'status',text:` ⏳ Đang gửi prompt đến AI...`,time:Date.now()}]);try{if(aiProviders.length===0||!selectedProviderId){try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers&&data.providers.length>0){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){}}const prv=aiProviders.find(p=>p.id===selectedProviderId)||(aiProviders.length>0?aiProviders[0]:null);const provider=prv||aiConfig;const baseUrl=provider.api_base_url||provider.baseUrl||`${API_BASE_URL}`;const apiKey=provider.api_key||provider.apiKey||'';const model=provider.model_name||provider.model||'deepseek-chat';setAiActionLog(prev=>[...prev,{type:'info',text:` Provider: ${provider.name||'default'} | Model: ${model} | URL: ${baseUrl.slice(0,40)}`,time:Date.now()}]);const dawContext=window.AIGateway.buildAIPromptContext({tracks:activeTracks,bpm,selectedTrackId,currentTime,selLeft,selRight});let matchedInstruction='';try{const localPresets=localStorage.getItem('daw_ai_prompt_presets');const presets=localPresets?JSON.parse(localPresets):DEFAULT_PRESETS;const matched=presets.find(p=>p.keywords.some(kw=>prompt.toLowerCase().includes(kw.toLowerCase())));if(matched){matchedInstruction=matched.system_instruction_template;setAiActionLog(prev=>[...prev,{type:'status',text:` 🎯 Khớp Preset: "${matched.name}". Tự động tối ưu gợi ý...`,time:Date.now()}]);}}catch(e){console.error("Lỗi khi tìm preset:",e);}const result=await window.AIGateway.executeAIPrompt({prompt:prompt,provider:provider.name||'default',model:model,apiKey:apiKey,baseUrl:baseUrl.replace(/\/chat\/completions$/,'').replace(/\/$/,''),dawContext,tools:window.AIGateway.DEFAULT_TOOLS,systemInstruction:matchedInstruction});const hasText=!!result.textResponse;const hasCalls=result.functionCalls&&result.functionCalls.length>0;if(hasText){setAiActionLog(prev=>[...prev,{type:'status',text:` AI: ${result.textResponse.slice(0,500)}`,time:Date.now()}]);}if(hasCalls){setAiActionLog(prev=>[...prev,{type:'info',text:` Gọi ${result.functionCalls.length} lệnh...`,time:Date.now()}]);if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.isExecutingAI=true;}try{for(const fc of result.functionCalls){setAiActionLog(prev=>[...prev,{type:'info',text:` Gọi lệnh: ${fc.name}(${JSON.stringify(fc.arguments)})`,time:Date.now()}]);const cmdName=fc.name.toUpperCase();if(window.DAWCommandDispatcher){try{let cmdResult=window.DAWCommandDispatcher.execute(cmdName,fc.arguments);if(cmdResult&&typeof cmdResult.then==='function')cmdResult=await cmdResult;setAiActionLog(prev=>[...prev,{type:'status',text:` ✅ ${fc.name}: ${cmdResult&&cmdResult.success?'thành công':'thất bại: '+(cmdResult&&cmdResult.error||'unknown')}`,time:Date.now()}]);}catch(cmdErr){setAiActionLog(prev=>[...prev,{type:'error',text:` ❌ ${fc.name}: ${cmdErr.message}`,time:Date.now()}]);}}else{setAiActionLog(prev=>[...prev,{type:'error',text:` ❌ ${fc.name}: DAWCommandDispatcher not available`,time:Date.now()}]);}}}finally{if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.isExecutingAI=false;}}}if(!hasText&&!hasCalls){const rawKeys=result.raw?Object.keys(result.raw).join(', '):'null';const errDetail=result.raw&&result.raw.error?` (${result.raw.error.message||result.raw.error})`:'';setAiActionLog(prev=>[...prev,{type:'error',text:` AI không trả về lệnh hoặc text. Keys: [${rawKeys}]${errDetail}`,time:Date.now()}]);}if(prompt){promptHistRef.current=[...promptHistRef.current.slice(-49),prompt];setPromptHistory(promptHistRef.current);}setPromptHistIdx(-1);setAiActionLog(prev=>[...prev,{type:'status',text:` Hoàn tất.`,time:Date.now()}]);setAiPrompt('');setTimeout(()=>lucide.createIcons(),200);}catch(err){setAiActionLog(prev=>[...prev,{type:'error',text:` Lỗi: ${err.message}`,time:Date.now()}]);showToast(`AI Error: ${err.message}`,'error');}finally{setAiProcessing(false);}};// ── Split Track at Playhead ── const handleSplitTrackAtTime=(trackId,clipId,time)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];const targetClipId=clipId||clips.find(c=>time>=c.startTime&&timec.id===targetClipId);if(!clip||!clip.buffer)return;const relTime=Math.max(0,time-clip.startTime);const sr=clip.buffer.sampleRate;const cutSample=Math.floor(relTime*sr);const originalData=clip.buffer.getChannelData(0);if(cutSample<=0||cutSample>=originalData.length){showToast("Vị trí cắt nằm ngoài dải âm thanh của clip.","warning");return;}const beforeSnap=captureTrackSnapshot(trackId);const ctx=getAudioContext();const b1=ctx.createBuffer(1,cutSample,sr);b1.copyToChannel(originalData.subarray(0,cutSample),0);const b2=ctx.createBuffer(1,originalData.length-cutSample,sr);b2.copyToChannel(originalData.subarray(cutSample),0);const clip1={id:'clip_'+Date.now()+'_p1',name:`${clip.name.replace(' (Part 1)','').replace(' (Part 2)','')} (Part 1)`,buffer:b1,startTime:clip.startTime};const clip2={id:'clip_'+Date.now()+'_p2',name:`${clip.name.replace(' (Part 1)','').replace(' (Part 2)','')} (Part 2)`,buffer:b2,startTime:clip.startTime+cutSample/sr};setTracks(prev=>prev.map(t=>{if(t.id===trackId){const remainingClips=clips.filter(c=>c.id!==targetClipId);const updatedClips=[...remainingClips,clip1,clip2];return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer||null,startTime:updatedClips[0]?.startTime||0,name:updatedClips[0]?.name||t.name};}return t;}));setTimeout(()=>{const afterSnap=captureTrackSnapshot(trackId);pushAction('SPLIT_CLIP',trackId,beforeSnap,afterSnap);},50);showToast(`Đã chia nhỏ clip tại ${formatTime(time)}.`,"info");};const handleSplitTrack=trackId=>{handleSplitTrackAtTime(trackId,null,currentTime);};// ── Glue (Merge) Clips on Selected Track ── 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(()=>{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 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