diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx index e82bfb7..c9db672 100644 --- a/app/static/js/app.jsx +++ b/app/static/js/app.jsx @@ -3800,7 +3800,7 @@ const SystemManagerModal = ({ className: "px-2 py-1 bg-red-700/60 hover:bg-red-600 rounded text-xs" }, "Xóa"))))))))); }; -const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNotes }) => { +const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNotes, onSaveNotes, setSubTabs }) => { const [activeRollTool, setActiveRollTool] = React.useState('select'); const [snapVal, setSnapVal] = React.useState('1/16'); const [ccMode, setCcMode] = React.useState('velocity'); @@ -3810,6 +3810,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const ccCanvasRef = React.useRef(null); const gridScrollRef = React.useRef(null); const keybedRef = React.useRef(null); + const rulerScrollRef = React.useRef(null); const NoteHeight = 18; const pixelsPerBeat = rollZoom; @@ -3818,6 +3819,8 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const drawWidth = totalBeats * pixelsPerBeat; const [notes, setNotes] = React.useState(st.notes || []); + const [selectedNoteIds, setSelectedNoteIds] = React.useState([]); + const [selectionMarquee, setSelectionMarquee] = React.useState(null); // { startBeat, startPitch, currentBeat, currentPitch } const [draggedNote, setDraggedNote] = React.useState(null); // { mode: 'move'|'resize', idx, startOffsetBeat, originalStart } const [hoveredResizeIdx, setHoveredResizeIdx] = React.useState(-1); @@ -3868,6 +3871,53 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot }; }, []); + // Shift + Scroll event listener to adjust velocity + React.useEffect(() => { + const handleCanvasWheel = (e) => { + if (e.shiftKey) { + e.preventDefault(); + const canvas = canvasRef.current; + if (!canvas) return; + const rect = canvas.getBoundingClientRect(); + const x = e.clientX - rect.left; + const y = e.clientY - rect.top; + const beat = x / pixelsPerBeat; + const pitch = 127 - Math.floor(y / NoteHeight); + + // Find note under cursor + const noteUnderCursor = notes.find(n => { + return pitch === n.pitch && beat >= n.start_beat && beat < n.start_beat + n.duration_beats; + }); + + const delta = e.deltaY < 0 ? 0.05 : -0.05; + + if (noteUnderCursor) { + setNotes(prev => prev.map(n => { + if (n.id !== noteUnderCursor.id) return n; + const newVel = Math.max(0.1, Math.min(1.0, (n.velocity ?? 0.8) + delta)); + return { ...n, velocity: newVel }; + })); + } else if (selectedNoteIds.length > 0) { + setNotes(prev => prev.map(n => { + if (!selectedNoteIds.includes(n.id)) return n; + const newVel = Math.max(0.1, Math.min(1.0, (n.velocity ?? 0.8) + delta)); + return { ...n, velocity: newVel }; + })); + } + } + }; + + const canvas = canvasRef.current; + if (canvas) { + canvas.addEventListener('wheel', handleCanvasWheel, { passive: false }); + } + return () => { + if (canvas) { + canvas.removeEventListener('wheel', handleCanvasWheel); + } + }; + }, [notes, selectedNoteIds, pixelsPerBeat]); + React.useEffect(() => { const canvas = canvasRef.current; if (!canvas) return; @@ -3913,26 +3963,48 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot ctx.stroke(); } - // Draw notes with velocity layer representation (Hiển thị layer velocity ngay trên nốt) + // Draw notes with velocity layer representation notes.forEach((note) => { const x = note.start_beat * pixelsPerBeat; const y = (127 - note.pitch) * NoteHeight; const w = note.duration_beats * pixelsPerBeat; + const isSelected = selectedNoteIds.includes(note.id); - // Draw background of note (lighter yellow) - ctx.fillStyle = 'rgba(234, 179, 8, 0.25)'; - ctx.strokeStyle = '#ca8a04'; - ctx.lineWidth = 1; + // Draw background of note + ctx.fillStyle = isSelected ? 'rgba(59, 130, 246, 0.4)' : 'rgba(234, 179, 8, 0.25)'; + ctx.strokeStyle = isSelected ? '#3b82f6' : '#ca8a04'; + ctx.lineWidth = isSelected ? 1.5 : 1; ctx.fillRect(x + 1, y + 1, w - 2, NoteHeight - 2); ctx.strokeRect(x + 1, y + 1, w - 2, NoteHeight - 2); - // Draw velocity layer (solid yellow bar inside, proportional to velocity) + // Draw velocity layer (solid yellow/blue bar inside, proportional to velocity) const vel = note.velocity !== undefined ? note.velocity : 0.8; const velW = Math.max(2, (w - 2) * vel); - ctx.fillStyle = '#eab308'; + ctx.fillStyle = isSelected ? '#3b82f6' : '#eab308'; ctx.fillRect(x + 1, y + 1, velW, NoteHeight - 2); }); - }, [notes, snapVal, rollZoom]); + + // Draw selection marquee if active + if (selectionMarquee) { + const minBeat = Math.min(selectionMarquee.startBeat, selectionMarquee.currentBeat); + const maxBeat = Math.max(selectionMarquee.startBeat, selectionMarquee.currentBeat); + const minPitch = Math.min(selectionMarquee.startPitch, selectionMarquee.currentPitch); + const maxPitch = Math.max(selectionMarquee.startPitch, selectionMarquee.currentPitch); + + const mx = minBeat * pixelsPerBeat; + const my = (127 - maxPitch) * NoteHeight; + const mw = (maxBeat - minBeat) * pixelsPerBeat; + const mh = (maxPitch - minPitch + 1) * NoteHeight; + + ctx.fillStyle = 'rgba(59, 130, 246, 0.15)'; + ctx.strokeStyle = '#3b82f6'; + ctx.lineWidth = 1; + ctx.setLineDash([4, 4]); + ctx.fillRect(mx, my, mw, mh); + ctx.strokeRect(mx, my, mw, mh); + ctx.setLineDash([]); + } + }, [notes, snapVal, rollZoom, selectedNoteIds, selectionMarquee]); React.useEffect(() => { const canvas = ccCanvasRef.current; @@ -3994,6 +4066,38 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const beat = x / pixelsPerBeat; const pitch = 127 - Math.floor(y / NoteHeight); + // Right click -> Quick delete note! + if (e.button === 2) { + e.preventDefault(); + const clickedNote = notes.find(n => { + return pitch === n.pitch && beat >= n.start_beat && beat < n.start_beat + n.duration_beats; + }); + if (clickedNote) { + setNotes(prev => prev.filter(n => n.id !== clickedNote.id)); + setSelectedNoteIds(prev => prev.filter(id => id !== clickedNote.id)); + showToast('Đã xóa nốt nhanh!', 'info'); + } + return; + } + + if (e.button !== 0) return; // Only handle left click + + // Ctrl+Click -> Quick draw note! + if (e.ctrlKey) { + const start = getSnapBeat(beat, snapVal); + const newNote = { + id: 'note_' + Date.now() + Math.random().toString(36).substr(2, 5), + pitch: pitch, + start_beat: start, + duration_beats: getSnapDuration(snapVal), + velocity: 0.8, + pan: 0.0 + }; + setNotes(prev => [...prev, newNote]); + showToast('Đã vẽ nhanh nốt mới!', 'info'); + return; + } + if (hoveredResizeIdx !== -1) { setDraggedNote({ mode: 'resize', @@ -4007,43 +4111,41 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot return pitch === n.pitch && beat >= n.start_beat && beat < n.start_beat + n.duration_beats; }); - if (activeRollTool === 'select') { - if (clickedNoteIdx !== -1) { - setDraggedNote({ - mode: 'move', - idx: clickedNoteIdx, - startOffsetBeat: beat - notes[clickedNoteIdx].start_beat, - originalPitch: notes[clickedNoteIdx].pitch - }); - } else { - const start = getSnapBeat(beat, snapVal); - const newNote = { - id: 'note_' + Date.now() + Math.random().toString(36).substr(2, 5), - pitch: pitch, - start_beat: start, - duration_beats: getSnapDuration(snapVal), - velocity: 0.8, - pan: 0.0 - }; - setNotes(prev => [...prev, newNote]); - } - } else if (activeRollTool === 'eraser') { - if (clickedNoteIdx !== -1) { - setNotes(prev => prev.filter((_, idx) => idx !== clickedNoteIdx)); - } - } else if (activeRollTool === 'pen') { - if (clickedNoteIdx === -1) { - const start = getSnapBeat(beat, snapVal); - const newNote = { - id: 'note_' + Date.now() + Math.random().toString(36).substr(2, 5), - pitch: pitch, - start_beat: start, - duration_beats: getSnapDuration(snapVal), - velocity: 0.8, - pan: 0.0 - }; - setNotes(prev => [...prev, newNote]); + if (clickedNoteIdx !== -1) { + const clickedNote = notes[clickedNoteIdx]; + // Selection management + if (!selectedNoteIds.includes(clickedNote.id)) { + if (e.shiftKey) { + setSelectedNoteIds(prev => [...prev, clickedNote.id]); + } else { + setSelectedNoteIds([clickedNote.id]); + } } + + const selectedNotesOffset = notes + .filter(n => selectedNoteIds.includes(n.id) || n.id === clickedNote.id) + .map(n => ({ + id: n.id, + originalStartBeat: n.start_beat, + originalPitch: n.pitch + })); + + setDraggedNote({ + mode: 'move', + idx: clickedNoteIdx, + startOffsetBeat: beat - clickedNote.start_beat, + startOffsetPitch: pitch - clickedNote.pitch, + selectedNotesOffset: selectedNotesOffset + }); + } else { + // Clicked in empty space -> Start selection marquee + setSelectedNoteIds([]); + setSelectionMarquee({ + startBeat: beat, + startPitch: pitch, + currentBeat: beat, + currentPitch: pitch + }); } }; @@ -4057,8 +4159,28 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const beat = x / pixelsPerBeat; const pitch = 127 - Math.floor(y / NoteHeight); + if (selectionMarquee) { + const marquee = { + ...selectionMarquee, + currentBeat: beat, + currentPitch: pitch + }; + setSelectionMarquee(marquee); + + const minBeat = Math.min(marquee.startBeat, marquee.currentBeat); + const maxBeat = Math.max(marquee.startBeat, marquee.currentBeat); + const minPitch = Math.min(marquee.startPitch, marquee.currentPitch); + const maxPitch = Math.max(marquee.startPitch, marquee.currentPitch); + + const insideIds = notes + .filter(n => n.start_beat >= minBeat && n.start_beat <= maxBeat && n.pitch >= minPitch && n.pitch <= maxPitch) + .map(n => n.id); + + setSelectedNoteIds(insideIds); + return; + } + if (!draggedNote) { - // Check if mouse is near the right edge of any note let foundIdx = -1; for (let i = 0; i < notes.length; i++) { const n = notes[i]; @@ -4090,15 +4212,18 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot duration_beats: newDuration }; })); - } else { - const newStart = getSnapBeat(Math.max(0, beat - draggedNote.startOffsetBeat), snapVal); - const newPitch = Math.max(0, Math.min(127, pitch)); - setNotes(prev => prev.map((n, idx) => { - if (idx !== draggedNote.idx) return n; + } else if (draggedNote.mode === 'move') { + const baseOriginal = draggedNote.selectedNotesOffset.find(o => o.id === notes[draggedNote.idx].id); + const deltaBeat = getSnapBeat(beat - draggedNote.startOffsetBeat, snapVal) - baseOriginal.originalStartBeat; + const deltaPitch = Math.round(pitch - draggedNote.startOffsetPitch) - baseOriginal.originalPitch; + + setNotes(prev => prev.map(n => { + const offset = draggedNote.selectedNotesOffset.find(o => o.id === n.id); + if (!offset) return n; return { ...n, - start_beat: newStart, - pitch: newPitch + start_beat: getSnapBeat(Math.max(0, offset.originalStartBeat + deltaBeat), snapVal), + pitch: Math.max(0, Math.min(127, offset.originalPitch + deltaPitch)) }; })); } @@ -4106,6 +4231,11 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const handleGridMouseUp = () => { setDraggedNote(null); + setSelectionMarquee(null); + }; + + const handleContextMenu = (e) => { + e.preventDefault(); }; const handleCCMouseDown = (e) => { @@ -4117,7 +4247,6 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const h = rect.height; const beat = x / pixelsPerBeat; - // Find note near beat or closest note horizontally let noteIdx = notes.findIndex(n => beat >= n.start_beat && beat <= n.start_beat + n.duration_beats); if (noteIdx === -1) { let minDistance = Infinity; @@ -4155,10 +4284,10 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot keys.push( /*#__PURE__*/React.createElement("div", { - key: pitch, - style: { height: `${NoteHeight}px` }, - className: `w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition ${isBlack ? 'bg-zinc-950 text-slate-500 border-zinc-900' : 'bg-white text-zinc-800 border-r border-zinc-400'}` - }, showLabel && label) + key: pitch, + style: { height: `${NoteHeight}px` }, + className: `w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition ${isBlack ? 'bg-zinc-950 text-slate-500 border-zinc-900' : 'bg-white text-zinc-800 border-r border-zinc-400'}` + }, showLabel && label) ); } return keys; @@ -4168,6 +4297,29 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot if (keybedRef.current) { keybedRef.current.scrollTop = e.currentTarget.scrollTop; } + if (rulerScrollRef.current) { + rulerScrollRef.current.scrollLeft = e.currentTarget.scrollLeft; + } + }; + + const renderBarLabels = () => { + const labels = []; + const barsCount = Math.ceil(totalBeats / 4); + for (let bar = 0; bar < barsCount; bar++) { + const x = bar * 4 * pixelsPerBeat; + labels.push( + /*#__PURE__*/React.createElement("div", { + key: bar, + style: { + position: 'absolute', + left: `${x}px`, + top: '4px' + }, + className: "pl-1 border-l border-zinc-700 h-full select-none" + }, `Bar ${bar}`) + ); + } + return labels; }; return /*#__PURE__*/React.createElement("div", { @@ -4204,13 +4356,34 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot key: mode, onClick: () => setCcMode(mode), className: `px-2.5 py-1 rounded capitalize ${ccMode === mode ? 'bg-purple-900/60 text-purple-300 font-bold border border-purple-700' : 'text-zinc-400 hover:text-zinc-200'}` - }, mode)))), /*#__PURE__*/React.createElement("button", { + }, mode)))), /*#__PURE__*/React.createElement("div", { + className: "flex items-center gap-1" + }, /*#__PURE__*/React.createElement("button", { + onClick: () => onSaveNotes(st.id, st.trackId, st.target_id, notes), + className: "px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold" + }, /*#__PURE__*/React.createElement("i", { + "data-lucide": "save", + className: "w-3 h-3" + }), "Lưu"), /*#__PURE__*/React.createElement("button", { onClick: onClose, className: "px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition" }, /*#__PURE__*/React.createElement("i", { "data-lucide": "x", className: "w-3 h-3" - }), "Đóng")), /*#__PURE__*/React.createElement("div", { + }), "Đóng"))), /*#__PURE__*/React.createElement("div", { + className: "h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0" + }, /*#__PURE__*/React.createElement("div", { + className: "w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0" + }), /*#__PURE__*/React.createElement("div", { + ref: rulerScrollRef, + className: "flex-1 overflow-hidden" + }, /*#__PURE__*/React.createElement("div", { + style: { + width: `${drawWidth}px`, + height: '100%' + }, + className: "relative h-full font-mono text-[9px] text-zinc-500 font-bold" + }, renderBarLabels()))), /*#__PURE__*/React.createElement("div", { className: "flex-1 flex overflow-hidden min-h-0 relative" }, /*#__PURE__*/React.createElement("div", { ref: keybedRef, @@ -4235,6 +4408,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot onMouseMove: handleGridMouseMove, onMouseUp: handleGridMouseUp, onMouseLeave: handleGridMouseUp, + onContextMenu: handleContextMenu, className: "absolute inset-0 cursor-crosshair" })))), /*#__PURE__*/React.createElement("div", { className: "h-20 bg-[#161616] border-t border-zinc-900 flex shrink-0" @@ -5794,9 +5968,11 @@ const App = () => { setActiveTab(tabId); }; - const handleUpdateMidiNotes = (tabId, trackId, midiItemId, updatedNotes) => { - setSubTabs(prev => prev.map(s => s.id === tabId ? { ...s, notes: updatedNotes } : s)); + const handleUpdateMidiNotes = (tabId, notes) => { + setSubTabs(prev => prev.map(s => s.id === tabId ? { ...s, notes: notes } : s)); + }; + const handleSaveMidiNotes = (tabId, trackId, midiItemId, updatedNotes) => { const isSectionTrack = sessionTabs.some(s => s.tracks.some(t => t.id === trackId)); if (isSectionTrack) { setSessionTabs(prev => prev.map(s => { @@ -5827,6 +6003,32 @@ const App = () => { }; })); } + showToast('Đã lưu các chỉnh sửa nốt MIDI vào item cha!', 'success'); + }; + + const handleSaveSectionTab = (tabId) => { + const tab = sessionTabs.find(s => s.id === tabId); + if (!tab) return; + const bpmVal = parseInt(bpm) || 120; + const secondsPerBeat = 60.0 / bpmVal; + const secondsPerBar = secondsPerBeat * 4; + const durationSec = (tab.length_bars || 16.0) * secondsPerBar; + + setTracks(prev => prev.map(t => { + if (!t.sections || t.sections.length === 0) return t; + return { + ...t, + sections: t.sections.map(s => { + if (s.sectionId !== tab.sectionId) return s; + return { + ...s, + name: tab.name, + duration: durationSec + }; + }) + }; + })); + showToast(`Đã lưu nội dung Section "${tab.name}" vào Main Session!`, 'success'); }; // ── Double-click/Edit Section: open Main Session in new tab ── @@ -11297,7 +11499,18 @@ const App = () => { }, /*#__PURE__*/React.createElement("i", { "data-lucide": "plus", className: "w-3.5 h-3.5" - })), /*#__PURE__*/React.createElement("span", null, "Track")), /*#__PURE__*/React.createElement("div", { + })), /*#__PURE__*/React.createElement("span", null, "Track")), sessionTabs.some(s => s.id === activeTab) && /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("div", { + className: "w-[1px] h-5 bg-zinc-700 mx-0.5" + }), /*#__PURE__*/React.createElement("button", { + onClick: () => handleSaveSectionTab(activeTab), + className: "px-2 py-1 bg-emerald-600 hover:bg-emerald-500 text-white font-semibold rounded text-xs flex items-center gap-1 shadow transition", + title: "Lưu Section vào Main Session" + }, /*#__PURE__*/React.createElement("span", { + className: "inline-flex items-center shrink-0" + }, /*#__PURE__*/React.createElement("i", { + "data-lucide": "save", + className: "w-3.5 h-3.5" + })), /*#__PURE__*/React.createElement("span", null, "Lưu Section"))), /*#__PURE__*/React.createElement("div", { className: "w-[1px] h-5 bg-zinc-700 mx-0.5" }), /*#__PURE__*/React.createElement("button", { onClick: handleUndo, @@ -12629,7 +12842,9 @@ const App = () => { bpm: bpm, viewportWidth: viewportWidth, onClose: () => closeSubTab(st.id), - onUpdateNotes: handleUpdateMidiNotes + onUpdateNotes: handleUpdateMidiNotes, + onSaveNotes: handleSaveMidiNotes, + setSubTabs: setSubTabs }); } const subTrack = tracks.find(t => t.id === st.trackId); diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index ee91040..a2c57aa 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -110,17 +110,24 @@ let interpolatedVal=valFromY(e.clientY-rect.top);if(curNodes.length>=2){const so 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 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keybedRef=React.useRef(null);const NoteHeight=18;const pixelsPerBeat=rollZoom;const timeSigNum=4;const totalBeats=(st.duration||4)*timeSigNum;const drawWidth=totalBeats*pixelsPerBeat;const[notes,setNotes]=React.useState(st.notes||[]);const[draggedNote,setDraggedNote]=React.useState(null);// { mode: 'move'|'resize', idx, startOffsetBeat, originalStart } +const[confirmModal,setConfirmModal]=useState(null);const handleDragStart=e=>{const r=dragRef.current;r.active=true;r.startX=e.clientX;r.startY=e.clientY;r.ofsX=dragOfs.x;r.ofsY=dragOfs.y;const onMove=ev=>{if(!r.active)return;setDragOfs({x:r.ofsX+ev.clientX-r.startX,y:r.ofsY+ev.clientY-r.startY});};const onUp=()=>{r.active=false;document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};useEffect(()=>{if(isOpen){fetchProfile();if(activeTab==='projects')fetchProjects();if(activeTab==='files')fetchFiles();}},[isOpen,activeTab]);const fetchProfile=async()=>{try{const data=await window.SonicAPI.getProfile();setProfile(data);}catch(e){setError(e.message||'Không thể tải thông tin profile');}};const fetchProjects=async()=>{setLoadingProjects(true);try{const data=await window.SonicAPI.listCloudProjects();setProjectsList(data||[]);}catch(e){showToast(e.message||'Không thể tải danh sách dự án','error');}finally{setLoadingProjects(false);}};const fetchFiles=async()=>{setLoadingFiles(true);try{const activeFileIds=tracks.map(t=>t.serverFileId).filter(Boolean);const data=await window.SonicAPI.listMyFiles(activeFileIds);setFilesList(data||[]);}catch(e){showToast(e.message||'Không thể tải danh sách tệp tin','error');}finally{setLoadingFiles(false);}};const handleOpenProject=async projectId=>{setAppWarningModal({title:"Mở dự án",message:"Bạn có muốn mở dự án này? Các thay đổi chưa lưu trên workspace hiện tại sẽ bị mất.",isAlert:false,onConfirm:async()=>{try{const proj=await window.SonicAPI.getCloudProject(projectId);const parsed=JSON.parse(proj.data_json);let restoredTracks=[];let restoredBpm=bpm;let restoredSessionTabs=[];if(parsed.main_session){const result=deserializeProjectFromSchema(parsed);restoredTracks=result.tracks;restoredBpm=result.bpm;restoredSessionTabs=result.sessionTabs;}else{restoredTracks=(parsed.tracks||[]).map(t=>{const{height:_h,...rest}=t;return{...rest,buffer:null,channelInfo:t.channelInfo||null,clips:t.clips||[],serverFileId:t.serverFileId||null};});}setTracks(restoredTracks);setBpm(restoredBpm.toString());setSelectedTrackId(restoredTracks[0]?.id||'1');setProjectName(proj.name);setCurrentProjectId(proj.id);if(restoredSessionTabs.length>0){setSessionTabs(restoredSessionTabs);}localStorage.setItem('sonic_project_name',proj.name);localStorage.setItem('sonic_project_id',proj.id);showToast(`Đã nạp dự án "${proj.name}" thành công!`,"success");}catch(e){showToast(e.message||"Lỗi khi nạp dự án","error");}}});};const handleDeleteProject=async(projectId,e)=>{e.stopPropagation();setConfirmModal({title:"Xóa dự án Cloud",message:"Bạn có chắc chắn muốn xóa dự án này khỏi Cloud? Hành động này không thể hoàn tác.",onConfirm:async()=>{try{await window.SonicAPI.deleteCloudProject(projectId);showToast("Đã xóa dự án thành công!","success");fetchProjects();fetchProfile();}catch(err){showToast(err.message||"Lỗi khi xóa dự án","error");}}});};const handleDeleteFile=async fileId=>{if(!confirm(`Bạn có chắc chắn muốn xóa tệp tin ${fileId}?`))return;try{await window.SonicAPI.deleteMyFile(fileId);showToast("Đã xóa tệp tin thành công!","success");fetchFiles();fetchProfile();}catch(err){showToast(err.message||"Lỗi khi xóa tệp tin","error");}};const handleCleanUnusedFiles=async()=>{const unusedFiles=filesList.filter(f=>!f.is_in_use);if(unusedFiles.length===0){showToast("Không có tập tin rác nào để dọn dẹp.","info");return;}if(!confirm(`Bạn có chắc chắn muốn xóa tất cả ${unusedFiles.length} tập tin rác để giải phóng dung lượng?`))return;let successCount=0;for(const file of unusedFiles){try{await window.SonicAPI.deleteMyFile(file.file_id);successCount++;}catch(e){console.error("Lỗi xóa file rác: ",file.file_id,e);}}showToast(`Đã dọn dẹp thành công ${successCount}/${unusedFiles.length} tập tin rác!`,"success");fetchFiles();fetchProfile();};const handleChangePassword=async e=>{e.preventDefault();setMsg('');setError('');setLoading(true);try{const res=await window.SonicAPI.changePassword(oldPassword,newPassword);setMsg(res.message||'Đổi mật khẩu thành công!');setOldPassword('');setNewPassword('');}catch(err){setError(err.message||'Lỗi khi đổi mật khẩu');}finally{setLoading(false);}};const modalStyle={left:`calc(50% + ${dragOfs.x}px)`,top:`calc(50% + ${dragOfs.y}px)`,transform:'translate(-50%, -50%)'};return/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{key:"backdrop",className:"fixed inset-0 z-40 bg-black/70 backdrop-blur-sm",onClick:onClose}),confirmModal&&/*#__PURE__*/React.createElement("div",{key:"confirm-overlay",className:"fixed 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ra."):/*#__PURE__*/React.createElement("div",{key:"list",className:"space-y-1.5"},[filesList.map(file=>/*#__PURE__*/React.createElement("div",{key:file.file_id,className:"flex items-center justify-between p-3 bg-[#1e1e1e] rounded border border-zinc-800 text-xs"},[/*#__PURE__*/React.createElement("div",{key:"meta",className:"max-w-[70%]"},[/*#__PURE__*/React.createElement("div",{className:"font-semibold text-slate-300 truncate"},file.original_name||file.file_id),/*#__PURE__*/React.createElement("div",{className:"text-[10px] text-zinc-500 mt-0.5"},`Loại: ${file.type} | Dung lượng: ${file.size_mb} MB | Tạo lúc: ${new Date(file.created_at*1000).toLocaleString()}`)]),/*#__PURE__*/React.createElement("div",{key:"actions",className:"flex items-center gap-2"},[file.is_in_use?/*#__PURE__*/React.createElement("span",{className:"px-2 py-0.5 bg-emerald-950 text-emerald-400 border border-emerald-900 rounded text-[9px] uppercase font-bold font-mono"},"Đang 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text-teal-400 mb-4 uppercase"},"Đặt tên dự án"),/*#__PURE__*/React.createElement("form",{onSubmit:handleSubmit,className:"space-y-4"},[/*#__PURE__*/React.createElement("input",{key:"name-input",type:"text",placeholder:"Nhập tên dự án...",required:true,value:name,onChange:e=>setName(e.target.value),className:"w-full bg-[#1e1e1e] border border-[#383838] rounded px-3 py-1.5 text-xs text-slate-200 focus:outline-none focus:border-teal-500 font-bold",autoFocus:true}),/*#__PURE__*/React.createElement("div",{key:"actions",className:"flex justify-end gap-2 text-xs"},[/*#__PURE__*/React.createElement("button",{key:"cancel",type:"button",onClick:onClose,className:"px-3 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 rounded"},"Hủy"),/*#__PURE__*/React.createElement("button",{key:"save",type:"submit",className:"px-3 py-1.5 bg-teal-600 hover:bg-teal-500 text-white rounded font-semibold"},"Lưu")])])));};const SaveAsModal=({isOpen,onClose,projectName,onSaveCloud,onSaveLocal})=>{if(!isOpen)return null;const[name,setName]=useState(projectName||'');const[saveType,setSaveType]=useState('cloud');const handleSubmit=e=>{e.preventDefault();if(!name.trim())return;if(saveType==='cloud'){onSaveCloud(name.trim());}else{onSaveLocal(name.trim());}onClose();};return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-50 flex items-center justify-center bg-black/70 backdrop-blur-sm"},/*#__PURE__*/React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-full max-w-md p-6 text-slate-200"},/*#__PURE__*/React.createElement("h3",{className:"text-sm font-bold text-teal-400 mb-4 uppercase"},"Lưu dưới tên khác (Save As...)"),/*#__PURE__*/React.createElement("form",{onSubmit:handleSubmit,className:"space-y-4"},[/*#__PURE__*/React.createElement("div",{key:"name-block"},[/*#__PURE__*/React.createElement("label",{className:"block text-[10px] text-zinc-400 uppercase font-bold mb-1"},"Tên dự án mới"),/*#__PURE__*/React.createElement("input",{type:"text",placeholder:"Nhập tên mới...",required:true,value:name,onChange:e=>setName(e.target.value),className:"w-full bg-[#1e1e1e] border border-[#383838] rounded px-3 py-1.5 text-xs text-slate-200 focus:outline-none focus:border-teal-500 font-bold",autoFocus:true})]),/*#__PURE__*/React.createElement("div",{key:"type-block"},[/*#__PURE__*/React.createElement("label",{className:"block text-[10px] text-zinc-400 uppercase font-bold mb-1.5"},"Phương thức lưu trữ"),/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-2 gap-2 text-xs"},[/*#__PURE__*/React.createElement("button",{key:"btn-cloud",type:"button",onClick:()=>setSaveType('cloud'),className:`py-2 rounded border flex flex-col items-center gap-1 font-semibold transition ${saveType==='cloud'?'bg-teal-950/60 border-teal-500 text-teal-300':'bg-zinc-800 border-zinc-700 hover:bg-zinc-750 text-zinc-400'}`},[/*#__PURE__*/React.createElement("span",{key:"title"},"☁️ Lưu Cloud"),/*#__PURE__*/React.createElement("span",{key:"desc",className:"text-[9px] font-normal text-zinc-500"},"Lưu lên server cá nhân")]),/*#__PURE__*/React.createElement("button",{key:"btn-local",type:"button",onClick:()=>setSaveType('local'),className:`py-2 rounded border flex flex-col items-center gap-1 font-semibold transition ${saveType==='local'?'bg-teal-950/60 border-teal-500 text-teal-300':'bg-zinc-800 border-zinc-700 hover:bg-zinc-750 text-zinc-400'}`},[/*#__PURE__*/React.createElement("span",{key:"title"},"💾 Tải về máy (.sfs)"),/*#__PURE__*/React.createElement("span",{key:"desc",className:"text-[9px] font-normal text-zinc-500"},"Tải tệp JSON dự án về máy")])])]),/*#__PURE__*/React.createElement("div",{key:"actions",className:"flex justify-end gap-2 text-xs pt-2"},[/*#__PURE__*/React.createElement("button",{key:"cancel",type:"button",onClick:onClose,className:"px-3 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 rounded"},"Hủy"),/*#__PURE__*/React.createElement("button",{key:"save",type:"submit",className:"px-3 py-1.5 bg-teal-600 hover:bg-teal-500 text-white rounded font-semibold"},"Thực hiện lưu")])])));};const SystemManagerModal=({isOpen,onClose})=>{if(!isOpen)return null;const[users,setUsers]=useState([]);const[loading,setLoading]=useState(true);const[msg,setMsg]=useState('');const[error,setError]=useState('');const[editingQuotaUser,setEditingQuotaUser]=useState(null);const[newQuotaMb,setNewQuotaMb]=useState(500);useEffect(()=>{if(isOpen)loadUsers();},[isOpen]);const loadUsers=async()=>{setLoading(true);setError('');try{const data=await window.SonicAPI.listUsers();setUsers(data);}catch(err){setError(err.message||'Không thể tải danh sách người dùng hệ thống');}finally{setLoading(false);}};const handleSaveQuota=async userId=>{try{await window.SonicAPI.updateUserQuota(userId,parseInt(newQuotaMb));setMsg('Đã cập nhật hạn mức Quota thành công!');setEditingQuotaUser(null);loadUsers();}catch(err){setError(err.message||'Lỗi cập nhật Quota');}};const handleToggleRole=async user=>{const nextRole=user.role==='admin'?'standard':'admin';try{await window.SonicAPI.updateUserRole(user.id,nextRole,user.is_active);setMsg(`Đã đổi vai trò người dùng ${user.username} thành ${nextRole}`);loadUsers();}catch(err){setError(err.message||'Lỗi cập nhật vai trò');}};const handleDeleteUser=async userId=>{if(!confirm('Bạn có chắc chắn muốn xóa người dùng này khỏi hệ thống?'))return;try{await window.SonicAPI.deleteUser(userId);setMsg('Đã xóa người dùng thành công');loadUsers();}catch(err){setError(err.message||'Lỗi khi xóa người dùng');}};return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-50 flex items-center justify-center bg-black/70 backdrop-blur-sm"},/*#__PURE__*/React.createElement("div",{className:"bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-full max-w-4xl p-6 text-slate-200"},/*#__PURE__*/React.createElement("div",{className:"flex justify-between items-center pb-4 border-b border-[#383838]"},/*#__PURE__*/React.createElement("h3",{className:"text-lg font-bold text-amber-400"},"⚙️ Quản Lý Hệ Thống & Phân Quyền Admin"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"text-slate-400 hover:text-slate-200"},"✕")),msg&&/*#__PURE__*/React.createElement("div",{className:"mt-3 p-2 bg-emerald-950/60 border border-emerald-700 text-emerald-300 rounded text-xs"},msg),error&&/*#__PURE__*/React.createElement("div",{className:"mt-3 p-2 bg-red-950/60 border border-red-700 text-red-300 rounded text-xs"},error),/*#__PURE__*/React.createElement("div",{className:"mt-4 overflow-x-auto max-h-96 no-scrollbar"},loading?/*#__PURE__*/React.createElement("div",{className:"py-8 text-center text-slate-400 text-xs"},"Đang tải thông tin hệ thống..."):/*#__PURE__*/React.createElement("table",{className:"w-full text-left text-xs border-collapse"},/*#__PURE__*/React.createElement("thead",null,/*#__PURE__*/React.createElement("tr",{className:"border-b border-[#383838] text-slate-400 bg-[#1e1e1e]"},/*#__PURE__*/React.createElement("th",{className:"p-3"},"Tên Người Dùng"),/*#__PURE__*/React.createElement("th",{className:"p-3"},"Email"),/*#__PURE__*/React.createElement("th",{className:"p-3"},"Vai Trò"),/*#__PURE__*/React.createElement("th",{className:"p-3"},"Dung Lượng Sử Dụng"),/*#__PURE__*/React.createElement("th",{className:"p-3"},"Hạn Mức Quota"),/*#__PURE__*/React.createElement("th",{className:"p-3 text-right"},"Thao Tác"))),/*#__PURE__*/React.createElement("tbody",{className:"divide-y divide-[#333]"},users.map(u=>/*#__PURE__*/React.createElement("tr",{key:u.id,className:"hover:bg-[#2e2e2e]"},/*#__PURE__*/React.createElement("td",{className:"p-3 font-semibold text-teal-300"},u.username,u.must_change_password&&/*#__PURE__*/React.createElement("span",{className:"ml-2 text-xs bg-amber-900/60 text-amber-300 px-1.5 py-0.5 rounded"},"Mật khẩu gốc")),/*#__PURE__*/React.createElement("td",{className:"p-3 text-slate-300"},u.email),/*#__PURE__*/React.createElement("td",{className:"p-3 uppercase font-bold text-amber-400"},u.role),/*#__PURE__*/React.createElement("td",{className:"p-3"},u.used_mb," MB"),/*#__PURE__*/React.createElement("td",{className:"p-3"},editingQuotaUser===u.id?/*#__PURE__*/React.createElement("div",{className:"flex items-center space-x-1"},/*#__PURE__*/React.createElement("input",{type:"number",value:newQuotaMb,onChange:e=>setNewQuotaMb(e.target.value),className:"w-16 bg-[#1e1e1e] border border-[#444] rounded px-1 py-0.5 text-xs text-slate-200"}),/*#__PURE__*/React.createElement("span",null,"MB"),/*#__PURE__*/React.createElement("button",{onClick:()=>handleSaveQuota(u.id),className:"px-2 py-0.5 bg-teal-600 rounded text-xs"},"Lưu")):/*#__PURE__*/React.createElement("span",{className:"font-semibold"},u.quota_mb," MB")),/*#__PURE__*/React.createElement("td",{className:"p-3 text-right space-x-2"},/*#__PURE__*/React.createElement("button",{onClick:()=>{setEditingQuotaUser(u.id);setNewQuotaMb(u.quota_mb);},className:"px-2 py-1 bg-slate-700 hover:bg-slate-600 rounded text-xs"},"Sửa Quota"),/*#__PURE__*/React.createElement("button",{onClick:()=>handleToggleRole(u),className:"px-2 py-1 bg-amber-700/60 hover:bg-amber-600 rounded text-xs"},"Đổi Role"),u.role!=='admin'&&/*#__PURE__*/React.createElement("button",{onClick:()=>handleDeleteUser(u.id),className:"px-2 py-1 bg-red-700/60 hover:bg-red-600 rounded text-xs"},"Xóa")))))))));};const PianoRollTabEditor=({st,zoom,bpm,viewportWidth,onClose,onUpdateNotes,onSaveNotes,setSubTabs})=>{const[activeRollTool,setActiveRollTool]=React.useState('select');const[snapVal,setSnapVal]=React.useState('1/16');const[ccMode,setCcMode]=React.useState('velocity');const[rollZoom,setRollZoom]=React.useState(60);// local horizontal zoom factor +const canvasRef=React.useRef(null);const ccCanvasRef=React.useRef(null);const gridScrollRef=React.useRef(null);const keybedRef=React.useRef(null);const rulerScrollRef=React.useRef(null);const NoteHeight=18;const pixelsPerBeat=rollZoom;const timeSigNum=4;const totalBeats=(st.duration||4)*timeSigNum;const drawWidth=totalBeats*pixelsPerBeat;const[notes,setNotes]=React.useState(st.notes||[]);const[selectedNoteIds,setSelectedNoteIds]=React.useState([]);const[selectionMarquee,setSelectionMarquee]=React.useState(null);// { startBeat, startPitch, currentBeat, currentPitch } +const[draggedNote,setDraggedNote]=React.useState(null);// { mode: 'move'|'resize', idx, startOffsetBeat, originalStart } const[hoveredResizeIdx,setHoveredResizeIdx]=React.useState(-1);React.useEffect(()=>{onUpdateNotes(st.id,notes);},[notes]);const getSnapBeat=(beat,mode)=>{let q=0.25;if(mode==='free')return beat;if(mode==='1')q=4.0;else if(mode==='1/2')q=2.0;else if(mode==='1/4')q=1.0;else if(mode==='1/8')q=0.5;else if(mode==='1/16')q=0.25;else if(mode==='1/32')q=0.125;return Math.round(beat/q)*q;};const getSnapDuration=mode=>{if(mode==='free')return 0.25;if(mode==='1')return 4.0;if(mode==='1/2')return 2.0;if(mode==='1/4')return 1.0;if(mode==='1/8')return 0.5;if(mode==='1/16')return 0.25;if(mode==='1/32')return 0.125;return 0.25;};// Local Zoom Wheel Event handler to block browser page zoom -React.useEffect(()=>{const handleWheelRaw=e=>{if(e.ctrlKey){e.preventDefault();const zoomFactor=e.deltaY<0?1.15:0.85;setRollZoom(prev=>Math.max(15,Math.min(250,prev*zoomFactor)));}};const container=gridScrollRef.current;if(container){container.addEventListener('wheel',handleWheelRaw,{passive:false});}return()=>{if(container){container.removeEventListener('wheel',handleWheelRaw);}};},[]);React.useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=128*NoteHeight;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);// Draw background rows +React.useEffect(()=>{const handleWheelRaw=e=>{if(e.ctrlKey){e.preventDefault();const zoomFactor=e.deltaY<0?1.15:0.85;setRollZoom(prev=>Math.max(15,Math.min(250,prev*zoomFactor)));}};const container=gridScrollRef.current;if(container){container.addEventListener('wheel',handleWheelRaw,{passive:false});}return()=>{if(container){container.removeEventListener('wheel',handleWheelRaw);}};},[]);// Shift + Scroll event listener to adjust velocity +React.useEffect(()=>{const handleCanvasWheel=e=>{if(e.shiftKey){e.preventDefault();const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);// Find note under cursor +const noteUnderCursor=notes.find(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beatprev.map(n=>{if(n.id!==noteUnderCursor.id)return n;const newVel=Math.max(0.1,Math.min(1.0,(n.velocity??0.8)+delta));return{...n,velocity:newVel};}));}else if(selectedNoteIds.length>0){setNotes(prev=>prev.map(n=>{if(!selectedNoteIds.includes(n.id))return n;const newVel=Math.max(0.1,Math.min(1.0,(n.velocity??0.8)+delta));return{...n,velocity:newVel};}));}}};const canvas=canvasRef.current;if(canvas){canvas.addEventListener('wheel',handleCanvasWheel,{passive:false});}return()=>{if(canvas){canvas.removeEventListener('wheel',handleCanvasWheel);}};},[notes,selectedNoteIds,pixelsPerBeat]);React.useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=128*NoteHeight;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);// Draw background rows for(let pitch=0;pitch<128;pitch++){const y=(127-pitch)*NoteHeight;const isBlack=[1,3,6,8,10].includes(pitch%12);ctx.fillStyle=isBlack?'#1a1a1e':'#25252a';ctx.fillRect(0,y,drawWidth,NoteHeight);ctx.strokeStyle='#2d2d35';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(0,y+NoteHeight);ctx.lineTo(drawWidth,y+NoteHeight);ctx.stroke();}// Draw snap lines -let snapBeats=0.25;if(snapVal==='1')snapBeats=4.0;else if(snapVal==='1/2')snapBeats=2.0;else if(snapVal==='1/4')snapBeats=1.0;else if(snapVal==='1/8')snapBeats=0.5;else if(snapVal==='1/16')snapBeats=0.25;else if(snapVal==='1/32')snapBeats=0.125;for(let beat=0;beat<=totalBeats;beat+=snapBeats){const x=beat*pixelsPerBeat;const isBar=beat%timeSigNum===0;ctx.strokeStyle=isBar?'#444450':'#2d2d35';ctx.lineWidth=isBar?1.2:0.6;ctx.beginPath();ctx.moveTo(x,0);ctx.lineTo(x,h);ctx.stroke();}// Draw notes with velocity layer representation (Hiển thị layer velocity ngay trên nốt) -notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat;const y=(127-note.pitch)*NoteHeight;const w=note.duration_beats*pixelsPerBeat;// Draw background of note (lighter yellow) -ctx.fillStyle='rgba(234, 179, 8, 0.25)';ctx.strokeStyle='#ca8a04';ctx.lineWidth=1;ctx.fillRect(x+1,y+1,w-2,NoteHeight-2);ctx.strokeRect(x+1,y+1,w-2,NoteHeight-2);// Draw velocity layer (solid yellow bar inside, proportional to velocity) -const vel=note.velocity!==undefined?note.velocity:0.8;const velW=Math.max(2,(w-2)*vel);ctx.fillStyle='#eab308';ctx.fillRect(x+1,y+1,velW,NoteHeight-2);});},[notes,snapVal,rollZoom]);React.useEffect(()=>{const canvas=ccCanvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=80;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);ctx.fillStyle='#161616';ctx.fillRect(0,0,drawWidth,h);ctx.strokeStyle='#252525';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(0,h/2);ctx.lineTo(drawWidth,h/2);ctx.stroke();notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat+note.duration_beats*pixelsPerBeat/2;let val=note.velocity!==undefined?note.velocity:0.8;if(ccMode==='pan'){val=(note.pan!==undefined?note.pan:0.0)*0.5+0.5;}const stemH=val*(h-20)+10;const y=h-stemH;ctx.strokeStyle=ccMode==='pan'?'#a78bfa':'#fbbf24';ctx.lineWidth=2.5;ctx.beginPath();ctx.moveTo(x,h);ctx.lineTo(x,y);ctx.stroke();ctx.fillStyle=ccMode==='pan'?'#c084fc':'#fbbf24';ctx.beginPath();ctx.arc(x,y,3.5,0,2*Math.PI);ctx.fill();});},[notes,ccMode,rollZoom]);React.useEffect(()=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=(127-60)*NoteHeight-150;}},[]);const handleGridMouseDown=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(hoveredResizeIdx!==-1){setDraggedNote({mode:'resize',idx:hoveredResizeIdx,originalStart:notes[hoveredResizeIdx].start_beat});return;}const clickedNoteIdx=notes.findIndex(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat[...prev,newNote]);}}else if(activeRollTool==='eraser'){if(clickedNoteIdx!==-1){setNotes(prev=>prev.filter((_,idx)=>idx!==clickedNoteIdx));}}else if(activeRollTool==='pen'){if(clickedNoteIdx===-1){const start=getSnapBeat(beat,snapVal);const newNote={id:'note_'+Date.now()+Math.random().toString(36).substr(2,5),pitch:pitch,start_beat:start,duration_beats:getSnapDuration(snapVal),velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);}}};const handleGridMouseMove=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(!draggedNote){// Check if mouse is near the right edge of any note -let foundIdx=-1;for(let i=0;i=n.start_beat){foundIdx=i;break;}}}if(foundIdx!==-1){canvas.style.cursor='ew-resize';setHoveredResizeIdx(foundIdx);}else{canvas.style.cursor=activeRollTool==='eraser'?'pointer':'crosshair';setHoveredResizeIdx(-1);}return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapVal);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else{const newStart=getSnapBeat(Math.max(0,beat-draggedNote.startOffsetBeat),snapVal);const newPitch=Math.max(0,Math.min(127,pitch));setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,start_beat:newStart,pitch:newPitch};}));}};const handleGridMouseUp=()=>{setDraggedNote(null);};const handleCCMouseDown=e=>{const canvas=ccCanvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const h=rect.height;const beat=x/pixelsPerBeat;// Find note near beat or closest note horizontally -let noteIdx=notes.findIndex(n=>beat>=n.start_beat&&beat<=n.start_beat+n.duration_beats);if(noteIdx===-1){let minDistance=Infinity;notes.forEach((n,idx)=>{const center=n.start_beat+n.duration_beats/2;const dist=Math.abs(center-beat);if(distprev.map((n,idx)=>{if(idx!==noteIdx)return n;if(ccMode==='pan'){return{...n,pan:(val-0.5)*2.0};}else{return{...n,velocity:val};}}));}};const renderKeybed=()=>{const keys=[];for(let pitch=127;pitch>=0;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${notesArray[pitch%12]}${octave}`;const showLabel=pitch%12===0;keys.push(/*#__PURE__*/React.createElement("div",{key:pitch,style:{height:`${NoteHeight}px`},className:`w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900':'bg-white text-zinc-800 border-r border-zinc-400'}`},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}};return/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col"},/*#__PURE__*/React.createElement("div",{className:"h-10 bg-[#282828] border-b border-zinc-900 flex items-center justify-between px-4 shrink-0 text-slate-200"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-4"},/*#__PURE__*/React.createElement("span",{className:"text-xs font-bold text-yellow-500 uppercase flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"music",className:"w-3.5 h-3.5"}),st.label),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['select','pen','eraser'].map(tool=>/*#__PURE__*/React.createElement("button",{key:tool,onClick:()=>setActiveRollTool(tool),className:`px-2.5 py-1 rounded capitalize ${activeRollTool===tool?'bg-yellow-600 text-white font-bold':'text-zinc-400 hover:text-zinc-200'}`},tool))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 text-xs"},/*#__PURE__*/React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap:"),/*#__PURE__*/React.createElement("select",{value:snapVal,onChange:e=>setSnapVal(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['free','1','1/2','1/4','1/8','1/16','1/32'].map(v=>/*#__PURE__*/React.createElement("option",{key:v,value:v},v)))),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['velocity','pan'].map(mode=>/*#__PURE__*/React.createElement("button",{key:mode,onClick:()=>setCcMode(mode),className:`px-2.5 py-1 rounded capitalize ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng")),/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative"},/*#__PURE__*/React.createElement("div",{ref:keybedRef,className:"w-[60px] overflow-hidden flex flex-col border-r border-zinc-900 shrink-0",style:{scrollbarWidth:'none',msOverflowStyle:'none'}},renderKeybed()),/*#__PURE__*/React.createElement("div",{ref:gridScrollRef,onScroll:handleScroll,className:"flex-1 overflow-auto bg-[#141414] min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:`${128*NoteHeight}px`},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,onMouseDown:handleGridMouseDown,onMouseMove:handleGridMouseMove,onMouseUp:handleGridMouseUp,onMouseLeave:handleGridMouseUp,className:"absolute inset-0 cursor-crosshair"})))),/*#__PURE__*/React.createElement("div",{className:"h-20 bg-[#161616] border-t border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 flex items-center justify-center text-[10px] text-zinc-500 font-mono shrink-0 font-bold"},ccMode.toUpperCase()),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-x-hidden min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,className:"absolute inset-0 cursor-ns-resize"})))));};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${t.serverFileId}`:"",sample_rate:c.buffer?c.buffer.sampleRate:44100,channels:c.buffer?c.buffer.numberOfChannels:2,gain:1.0}});});}else if(trackType==="MIDI"&&t.midiItems){t.midiItems.forEach(m=>{items.push({id:m.id,name:m.name||"MIDI Item",type:"MIDI_ITEM",start_bar:m.startTime/secondsPerBar,duration_bars:m.duration?m.duration/secondsPerBar:4.0,clip_start_offset_bars:0.0,source_data:{total_buffer_bars:m.duration?m.duration/secondsPerBar:8.0,notes:(m.notes||[]).map(n=>({id:n.id||'note_'+Math.random().toString(36).substr(2,9),pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))}});});}else if(trackType==="SECTION"&&t.sections){t.sections.forEach(s=>{items.push({id:s.id,name:s.name||"Section Item",type:"SECTION_ITEM",start_bar:s.start/secondsPerBar,duration_bars:s.duration/secondsPerBar,clip_start_offset_bars:0.0,source_data:{referenced_section_id:s.sectionId||s.id}});});}return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,items:items};});const sectionStore={};(sessionTabsList||[]).forEach(st=>{const secTracks=(st.tracks||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,items:[]};});sectionStore[st.sectionId]={id:st.sectionId,name:st.name,is_root:false,length_bars:st.length_bars||16.0,auto_compute_length:st.auto_compute_length!==undefined?st.auto_compute_length:true,tracks:secTracks};});return{project_id:projectId||'proj_'+Date.now(),metadata:{title:name||"Dự án mới",bpm:parseFloat(bpmVal||120),time_signature_numerator:4,time_signature_denominator:4,sample_rate:44100},main_session:{id:"main",name:"MAIN SESSION",is_root:true,length_bars:16.0,auto_compute_length:true,tracks:mainTracks},section_store:sectionStore};};const deserializeProjectFromSchema=schemaObj=>{const bpmVal=schemaObj.metadata?schemaObj.metadata.bpm:120;const secondsPerBar=60.0/bpmVal*4;const restoredTracks=(schemaObj.main_session.tracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};const audioUrl=src.audio_file_url||"";const serverFileId=audioUrl.split("/").pop()||null;clips.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,speed:1.0});}else if(item.type==="MIDI_ITEM"){const src=item.source_data||{};midiItems.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,notes:src.notes||[]});}else if(item.type==="SECTION_ITEM"){const src=item.source_data||{};sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:src.referenced_section_id});}});return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,color:t.id==='1'?'#0f766e':'#1d4ed8',markers:[],serverFileId:t.items&&t.items.find(i=>i.type==="AUDIO_ITEM")?.source_data?.audio_file_url?.split("/").pop()||null,clips:clips,sections:sections,midiItems:midiItems};});const restoredSessionTabs=[];const sectionStore=schemaObj.section_store||{};Object.keys(sectionStore).forEach(secId=>{const secContainer=sectionStore[secId];const secTracks=(secContainer.tracks||[]).map(t=>{return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,clips:[],sections:[],midiItems:[]};});restoredSessionTabs.push({id:'session_'+secId,name:secContainer.name,sectionId:secId,tracks:secTracks,length_bars:secContainer.length_bars||16.0,auto_compute_length:secContainer.auto_compute_length});});return{bpm:bpmVal,tracks:restoredTracks,sessionTabs:restoredSessionTabs};};const App=()=>{// ── State Definitions ── +let snapBeats=0.25;if(snapVal==='1')snapBeats=4.0;else if(snapVal==='1/2')snapBeats=2.0;else if(snapVal==='1/4')snapBeats=1.0;else if(snapVal==='1/8')snapBeats=0.5;else if(snapVal==='1/16')snapBeats=0.25;else if(snapVal==='1/32')snapBeats=0.125;for(let beat=0;beat<=totalBeats;beat+=snapBeats){const x=beat*pixelsPerBeat;const isBar=beat%timeSigNum===0;ctx.strokeStyle=isBar?'#444450':'#2d2d35';ctx.lineWidth=isBar?1.2:0.6;ctx.beginPath();ctx.moveTo(x,0);ctx.lineTo(x,h);ctx.stroke();}// Draw notes with velocity layer representation +notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat;const y=(127-note.pitch)*NoteHeight;const w=note.duration_beats*pixelsPerBeat;const isSelected=selectedNoteIds.includes(note.id);// Draw background of note +ctx.fillStyle=isSelected?'rgba(59, 130, 246, 0.4)':'rgba(234, 179, 8, 0.25)';ctx.strokeStyle=isSelected?'#3b82f6':'#ca8a04';ctx.lineWidth=isSelected?1.5:1;ctx.fillRect(x+1,y+1,w-2,NoteHeight-2);ctx.strokeRect(x+1,y+1,w-2,NoteHeight-2);// Draw velocity layer (solid yellow/blue bar inside, proportional to velocity) +const vel=note.velocity!==undefined?note.velocity:0.8;const velW=Math.max(2,(w-2)*vel);ctx.fillStyle=isSelected?'#3b82f6':'#eab308';ctx.fillRect(x+1,y+1,velW,NoteHeight-2);});// Draw selection marquee if active +if(selectionMarquee){const minBeat=Math.min(selectionMarquee.startBeat,selectionMarquee.currentBeat);const maxBeat=Math.max(selectionMarquee.startBeat,selectionMarquee.currentBeat);const minPitch=Math.min(selectionMarquee.startPitch,selectionMarquee.currentPitch);const maxPitch=Math.max(selectionMarquee.startPitch,selectionMarquee.currentPitch);const mx=minBeat*pixelsPerBeat;const my=(127-maxPitch)*NoteHeight;const mw=(maxBeat-minBeat)*pixelsPerBeat;const mh=(maxPitch-minPitch+1)*NoteHeight;ctx.fillStyle='rgba(59, 130, 246, 0.15)';ctx.strokeStyle='#3b82f6';ctx.lineWidth=1;ctx.setLineDash([4,4]);ctx.fillRect(mx,my,mw,mh);ctx.strokeRect(mx,my,mw,mh);ctx.setLineDash([]);}},[notes,snapVal,rollZoom,selectedNoteIds,selectionMarquee]);React.useEffect(()=>{const canvas=ccCanvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=80;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);ctx.fillStyle='#161616';ctx.fillRect(0,0,drawWidth,h);ctx.strokeStyle='#252525';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(0,h/2);ctx.lineTo(drawWidth,h/2);ctx.stroke();notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat+note.duration_beats*pixelsPerBeat/2;let val=note.velocity!==undefined?note.velocity:0.8;if(ccMode==='pan'){val=(note.pan!==undefined?note.pan:0.0)*0.5+0.5;}const stemH=val*(h-20)+10;const y=h-stemH;ctx.strokeStyle=ccMode==='pan'?'#a78bfa':'#fbbf24';ctx.lineWidth=2.5;ctx.beginPath();ctx.moveTo(x,h);ctx.lineTo(x,y);ctx.stroke();ctx.fillStyle=ccMode==='pan'?'#c084fc':'#fbbf24';ctx.beginPath();ctx.arc(x,y,3.5,0,2*Math.PI);ctx.fill();});},[notes,ccMode,rollZoom]);React.useEffect(()=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=(127-60)*NoteHeight-150;}},[]);const handleGridMouseDown=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);// Right click -> Quick delete note! +if(e.button===2){e.preventDefault();const clickedNote=notes.find(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beatprev.filter(n=>n.id!==clickedNote.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==clickedNote.id));showToast('Đã xóa nốt nhanh!','info');}return;}if(e.button!==0)return;// Only handle left click +// Ctrl+Click -> Quick draw note! +if(e.ctrlKey){const start=getSnapBeat(beat,snapVal);const newNote={id:'note_'+Date.now()+Math.random().toString(36).substr(2,5),pitch:pitch,start_beat:start,duration_beats:getSnapDuration(snapVal),velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);showToast('Đã vẽ nhanh nốt mới!','info');return;}if(hoveredResizeIdx!==-1){setDraggedNote({mode:'resize',idx:hoveredResizeIdx,originalStart:notes[hoveredResizeIdx].start_beat});return;}const clickedNoteIdx=notes.findIndex(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat[...prev,clickedNote.id]);}else{setSelectedNoteIds([clickedNote.id]);}}const selectedNotesOffset=notes.filter(n=>selectedNoteIds.includes(n.id)||n.id===clickedNote.id).map(n=>({id:n.id,originalStartBeat:n.start_beat,originalPitch:n.pitch}));setDraggedNote({mode:'move',idx:clickedNoteIdx,startOffsetBeat:beat-clickedNote.start_beat,startOffsetPitch:pitch-clickedNote.pitch,selectedNotesOffset:selectedNotesOffset});}else{// Clicked in empty space -> Start selection marquee +setSelectedNoteIds([]);setSelectionMarquee({startBeat:beat,startPitch:pitch,currentBeat:beat,currentPitch:pitch});}};const handleGridMouseMove=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(selectionMarquee){const marquee={...selectionMarquee,currentBeat:beat,currentPitch:pitch};setSelectionMarquee(marquee);const minBeat=Math.min(marquee.startBeat,marquee.currentBeat);const maxBeat=Math.max(marquee.startBeat,marquee.currentBeat);const minPitch=Math.min(marquee.startPitch,marquee.currentPitch);const maxPitch=Math.max(marquee.startPitch,marquee.currentPitch);const insideIds=notes.filter(n=>n.start_beat>=minBeat&&n.start_beat<=maxBeat&&n.pitch>=minPitch&&n.pitch<=maxPitch).map(n=>n.id);setSelectedNoteIds(insideIds);return;}if(!draggedNote){let foundIdx=-1;for(let i=0;i=n.start_beat){foundIdx=i;break;}}}if(foundIdx!==-1){canvas.style.cursor='ew-resize';setHoveredResizeIdx(foundIdx);}else{canvas.style.cursor=activeRollTool==='eraser'?'pointer':'crosshair';setHoveredResizeIdx(-1);}return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapVal);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else if(draggedNote.mode==='move'){const baseOriginal=draggedNote.selectedNotesOffset.find(o=>o.id===notes[draggedNote.idx].id);const deltaBeat=getSnapBeat(beat-draggedNote.startOffsetBeat,snapVal)-baseOriginal.originalStartBeat;const deltaPitch=Math.round(pitch-draggedNote.startOffsetPitch)-baseOriginal.originalPitch;setNotes(prev=>prev.map(n=>{const offset=draggedNote.selectedNotesOffset.find(o=>o.id===n.id);if(!offset)return n;return{...n,start_beat:getSnapBeat(Math.max(0,offset.originalStartBeat+deltaBeat),snapVal),pitch:Math.max(0,Math.min(127,offset.originalPitch+deltaPitch))};}));}};const handleGridMouseUp=()=>{setDraggedNote(null);setSelectionMarquee(null);};const handleContextMenu=e=>{e.preventDefault();};const handleCCMouseDown=e=>{const canvas=ccCanvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const h=rect.height;const beat=x/pixelsPerBeat;let noteIdx=notes.findIndex(n=>beat>=n.start_beat&&beat<=n.start_beat+n.duration_beats);if(noteIdx===-1){let minDistance=Infinity;notes.forEach((n,idx)=>{const center=n.start_beat+n.duration_beats/2;const dist=Math.abs(center-beat);if(distprev.map((n,idx)=>{if(idx!==noteIdx)return n;if(ccMode==='pan'){return{...n,pan:(val-0.5)*2.0};}else{return{...n,velocity:val};}}));}};const renderKeybed=()=>{const keys=[];for(let pitch=127;pitch>=0;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${notesArray[pitch%12]}${octave}`;const showLabel=pitch%12===0;keys.push(/*#__PURE__*/React.createElement("div",{key:pitch,style:{height:`${NoteHeight}px`},className:`w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900':'bg-white text-zinc-800 border-r border-zinc-400'}`},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}if(rulerScrollRef.current){rulerScrollRef.current.scrollLeft=e.currentTarget.scrollLeft;}};const renderBarLabels=()=>{const labels=[];const barsCount=Math.ceil(totalBeats/4);for(let bar=0;bar/*#__PURE__*/React.createElement("button",{key:tool,onClick:()=>setActiveRollTool(tool),className:`px-2.5 py-1 rounded capitalize ${activeRollTool===tool?'bg-yellow-600 text-white font-bold':'text-zinc-400 hover:text-zinc-200'}`},tool))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 text-xs"},/*#__PURE__*/React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap:"),/*#__PURE__*/React.createElement("select",{value:snapVal,onChange:e=>setSnapVal(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['free','1','1/2','1/4','1/8','1/16','1/32'].map(v=>/*#__PURE__*/React.createElement("option",{key:v,value:v},v)))),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['velocity','pan'].map(mode=>/*#__PURE__*/React.createElement("button",{key:mode,onClick:()=>setCcMode(mode),className:`px-2.5 py-1 rounded capitalize ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>onSaveNotes(st.id,st.trackId,st.target_id,notes),className:"px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},/*#__PURE__*/React.createElement("i",{"data-lucide":"save",className:"w-3 h-3"}),"Lưu"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng"))),/*#__PURE__*/React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),/*#__PURE__*/React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:'100%'},className:"relative h-full font-mono text-[9px] text-zinc-500 font-bold"},renderBarLabels()))),/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative"},/*#__PURE__*/React.createElement("div",{ref:keybedRef,className:"w-[60px] overflow-hidden flex flex-col border-r border-zinc-900 shrink-0",style:{scrollbarWidth:'none',msOverflowStyle:'none'}},renderKeybed()),/*#__PURE__*/React.createElement("div",{ref:gridScrollRef,onScroll:handleScroll,className:"flex-1 overflow-auto bg-[#141414] min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:`${128*NoteHeight}px`},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,onMouseDown:handleGridMouseDown,onMouseMove:handleGridMouseMove,onMouseUp:handleGridMouseUp,onMouseLeave:handleGridMouseUp,onContextMenu:handleContextMenu,className:"absolute inset-0 cursor-crosshair"})))),/*#__PURE__*/React.createElement("div",{className:"h-20 bg-[#161616] border-t border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 flex items-center justify-center text-[10px] text-zinc-500 font-mono shrink-0 font-bold"},ccMode.toUpperCase()),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-x-hidden min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,className:"absolute inset-0 cursor-ns-resize"})))));};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${t.serverFileId}`:"",sample_rate:c.buffer?c.buffer.sampleRate:44100,channels:c.buffer?c.buffer.numberOfChannels:2,gain:1.0}});});}else if(trackType==="MIDI"&&t.midiItems){t.midiItems.forEach(m=>{items.push({id:m.id,name:m.name||"MIDI Item",type:"MIDI_ITEM",start_bar:m.startTime/secondsPerBar,duration_bars:m.duration?m.duration/secondsPerBar:4.0,clip_start_offset_bars:0.0,source_data:{total_buffer_bars:m.duration?m.duration/secondsPerBar:8.0,notes:(m.notes||[]).map(n=>({id:n.id||'note_'+Math.random().toString(36).substr(2,9),pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))}});});}else if(trackType==="SECTION"&&t.sections){t.sections.forEach(s=>{items.push({id:s.id,name:s.name||"Section Item",type:"SECTION_ITEM",start_bar:s.start/secondsPerBar,duration_bars:s.duration/secondsPerBar,clip_start_offset_bars:0.0,source_data:{referenced_section_id:s.sectionId||s.id}});});}return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,items:items};});const sectionStore={};(sessionTabsList||[]).forEach(st=>{const secTracks=(st.tracks||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,items:[]};});sectionStore[st.sectionId]={id:st.sectionId,name:st.name,is_root:false,length_bars:st.length_bars||16.0,auto_compute_length:st.auto_compute_length!==undefined?st.auto_compute_length:true,tracks:secTracks};});return{project_id:projectId||'proj_'+Date.now(),metadata:{title:name||"Dự án mới",bpm:parseFloat(bpmVal||120),time_signature_numerator:4,time_signature_denominator:4,sample_rate:44100},main_session:{id:"main",name:"MAIN SESSION",is_root:true,length_bars:16.0,auto_compute_length:true,tracks:mainTracks},section_store:sectionStore};};const deserializeProjectFromSchema=schemaObj=>{const bpmVal=schemaObj.metadata?schemaObj.metadata.bpm:120;const secondsPerBar=60.0/bpmVal*4;const restoredTracks=(schemaObj.main_session.tracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};const audioUrl=src.audio_file_url||"";const serverFileId=audioUrl.split("/").pop()||null;clips.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,speed:1.0});}else if(item.type==="MIDI_ITEM"){const src=item.source_data||{};midiItems.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,notes:src.notes||[]});}else if(item.type==="SECTION_ITEM"){const src=item.source_data||{};sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:src.referenced_section_id});}});return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,color:t.id==='1'?'#0f766e':'#1d4ed8',markers:[],serverFileId:t.items&&t.items.find(i=>i.type==="AUDIO_ITEM")?.source_data?.audio_file_url?.split("/").pop()||null,clips:clips,sections:sections,midiItems:midiItems};});const restoredSessionTabs=[];const sectionStore=schemaObj.section_store||{};Object.keys(sectionStore).forEach(secId=>{const secContainer=sectionStore[secId];const secTracks=(secContainer.tracks||[]).map(t=>{return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,clips:[],sections:[],midiItems:[]};});restoredSessionTabs.push({id:'session_'+secId,name:secContainer.name,sectionId:secId,tracks:secTracks,length_bars:secContainer.length_bars||16.0,auto_compute_length:secContainer.auto_compute_length});});return{bpm:bpmVal,tracks:restoredTracks,sessionTabs:restoredSessionTabs};};const App=()=>{// ── State Definitions ── const[tracks,setTracks]=useState([{id:'1',name:'Track 01',buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:'#0f766e',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}},{id:'2',name:'Track 02',buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:'#1d4ed8',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}}]);const[appWarningModal,setAppWarningModal]=useState(null);const[bpm,setBpm]=useState(localStorage.getItem('studio_bpm')||'120');const[draggedClip,setDraggedClip]=useState(null);// { trackId, clickOffset, buffer, name, volume, color } const[hoveredTrackId,setHoveredTrackId]=useState(null);const openPanel=id=>{if(id==='export')setShowExportPanel(true);else if(id==='ai')setShowAIPanel(true);else if(id==='python_tools')setShowPythonToolsPanel(true);else if(id==='selection')setShowSelectionPanel(true);};const[activeTool,setActiveTool]=useState('select');// 'select' | 'grab' | 'razor' const[snapValue,setSnapValue]=useState('free');// 'free', '1', '1/2', '1/4', '1/8', '1/16', '1/32' @@ -158,7 +165,7 @@ if(e.key===' '||e.code==='Space'){e.preventDefault();if(handlePlayPauseRef.curre const curTabId=activeTabRef.current;if(ctrl&&alt&&e.key==='n'){e.preventDefault();handleSubTabNormalize(curTabId);return;}if(e.key==='f'||e.key==='F'){e.preventDefault();handleSubTabFade(curTabId,'in');return;}if(e.key==='g'||e.key==='G'){e.preventDefault();handleSubTabFade(curTabId,'out');return;}if(ctrl&&e.key==='l'){e.preventDefault();handleSubTabLoop(curTabId,4);return;}if(e.key==='v'||e.key==='V'){e.preventDefault();const val=prompt("Nhập Gain điều chỉnh (dB):","0");if(val)handleSubTabGain(curTabId,parseFloat(val)||0);return;}if(ctrl&&e.key==='x'){e.preventDefault();handleSubTabCut(curTabId);return;}if(ctrl&&e.key==='c'){e.preventDefault();handleSubTabCopy(curTabId);return;}if(ctrl&&e.key==='v'){e.preventDefault();handleSubTabPaste(curTabId);return;}if(e.key==='Delete'||e.key==='Backspace'||e.key==='Del'){e.preventDefault();if(subTabSelectedNodeTimeRef.current!==null){const selTime=subTabSelectedNodeTimeRef.current;setSubTabs(prev=>prev.map(s=>{if(s.id!==curTabId)return s;const curNodes=s.graphMode==='pan'?s.panningNodes||[]:s.volumeNodes||[];const updated=curNodes.filter(n=>n.time!==selTime);return{...s,[s.graphMode==='pan'?'panningNodes':'volumeNodes']:updated};}));setSubTabSelectedNodeTime(null);}else{handleSubTabDelete(curTabId);}return;}return;}if(ctrl&&e.key==='z'&&!e.shiftKey){e.preventDefault();handleUndoRef.current();return;}if(ctrl&&(e.key==='y'||e.key==='z'&&e.shiftKey)){e.preventDefault();handleRedoRef.current();return;}if(ctrl&&!alt&&e.key==='o'){e.preventDefault();handleImportSFS();return;}if(ctrl&&!alt&&e.key==='n'){e.preventDefault();setTracks([{id:'1',name:'Track 01',buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:'#0f766e',markers:[],serverFileId:null},{id:'2',name:'Track 02',buffer:null,startTime:0,volumeDb:0,pan:0,muted:false,solo:false,color:'#1d4ed8',markers:[],serverFileId:null}]);setSelectedTrackId('1');showToast('New project created','info');return;}if(ctrl&&!alt&&e.key==='s'){e.preventDefault();handleExportSFS();return;}if(ctrl&&alt&&e.key==='s'||ctrl&&e.shiftKey&&e.key==='s'){e.preventDefault();handleExportSFS();return;}if(ctrl&&!alt&&e.key==='i'){e.preventDefault();addNewTrack();return;}if(ctrl&&alt&&e.key==='i'){e.preventDefault();showToast('Import audio','info');return;}if(ctrl&&!alt&&e.key==='e'){e.preventDefault();openTempTab();return;}if(ctrl&&!alt&&e.key==='m'){e.preventDefault();handleMergeTracks();return;}if(ctrl&&!alt&&e.key==='c'){e.preventDefault();handleCopyTrack();return;}if(ctrl&&!alt&&e.key==='x'){e.preventDefault();handleCutTrack();return;}if(ctrl&&!alt&&e.key==='v'){e.preventDefault();handlePasteTrack();return;}if(e.key==='Delete'||e.key==='Backspace'||e.key==='Del'){const selClip=selectedClipIdRef.current;if(selClip){e.preventDefault();const{trackId,clipId}=selClip;setTracks(prev=>{const track=prev.find(t=>t.id===trackId);if(!track)return prev;const beforeSnap=captureTrackSnapshotRef.current?captureTrackSnapshotRef.current(trackId):null;const updatedClips=(track.clips||[]).filter(c=>c.id!==clipId);const updatedTracks=prev.map(t=>{if(t.id===trackId){return{...t,clips:updatedClips,buffer:updatedClips.length>0?updatedClips[0].buffer:null,startTime:updatedClips.length>0?updatedClips[0].startTime:0,name:updatedClips.length>0?updatedClips[0].name:`Track ${t.id}`};}return t;});setTimeout(()=>{const afterSnap=captureTrackSnapshotRef.current?captureTrackSnapshotRef.current(trackId):null;pushAction('DELETE_CLIP',trackId,beforeSnap,afterSnap);},50);return updatedTracks;});setSelectedClipId(null);showToast('Đã xóa clip.','info');return;}else{e.preventDefault();handleDeleteTrack();return;}}if(ctrl&&!alt&&e.key==='s'){e.preventDefault();handleSaveProject();return;}if(!ctrl&&!alt&&e.key==='s'){e.preventDefault();handleSplitTrack(selectedTrackId);return;}};window.addEventListener('keydown',handler);return()=>window.removeEventListener('keydown',handler);},[]);// ── Temp Tab: draw isolated waveform ── useEffect(()=>{if(!tempTabActive||!tempTabBuffer||!tempTabCanvasRef.current)return;const canvas=tempTabCanvasRef.current;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const rect=canvas.getBoundingClientRect();canvas.width=rect.width*dpr;canvas.height=rect.height*dpr;ctx.scale(dpr,dpr);const w=rect.width;const h=rect.height;ctx.fillStyle='#181818';ctx.fillRect(0,0,w,h);const data=tempTabBuffer.getChannelData(0);const sr=tempTabBuffer.sampleRate;const totalSamples=data.length;if(totalSamples===0)return;ctx.strokeStyle='#6ee7b7';ctx.lineWidth=1;for(let px=0;pxmaxVal)maxVal=abs;}const mid=h/2;const peakHeight=maxVal*(h*0.4);ctx.beginPath();ctx.moveTo(px,mid-peakHeight);ctx.lineTo(px,mid+peakHeight);ctx.stroke();}},[tempTabActive,tempTabBuffer]);// ── Sub Tab: open as new tab instead of modal (LOOP_EDITOR_2.md §1) ── const openTempTab=()=>{const useLocal=selectionMode==='local'&&localSelectionTrackId;const trackId=useLocal?localSelectionTrackId:selectedTrackId;const t=tracks.find(x=>x.id===trackId);if(!t||!t.buffer){showToast('Vui lòng chọn track có dữ liệu âm thanh.','warning');return;}if(selLeft===null||selRight===null||selRight<=selLeft){showToast('Vui lòng chọn một khoảng thời gian trên sóng âm.','warning');return;}// Check if a subtab for this track+range already exists -const existing=subTabs.find(s=>s.trackId===trackId&&s.startTime===selLeft&&s.endTime===selRight);if(existing){setActiveTab(existing.id);showToast(`Sub Tab already open.`,'info');return;}const sr=t.buffer.sampleRate;const trackStart=t.startTime||0;const relSelLeft=Math.max(0,selLeft-trackStart);const relSelRight=Math.max(0,selRight-trackStart);const startSample=Math.max(0,Math.floor(relSelLeft*sr));const endSample=Math.min(t.buffer.length,Math.floor(relSelRight*sr));const len=endSample-startSample;if(len<100){showToast('Khoảng chọn quá ngắn.','warning');return;}const ctx=getAudioContext();const numChannels=t.buffer.numberOfChannels||1;const subBuffer=ctx.createBuffer(numChannels,len,sr);for(let c=0;c[...prev,{id:tabId,label:tabLabel,trackId:trackId,startTime:selLeft,endTime:selRight,buffer:subBuffer,channelInfo:subChannelInfo,effects:{reverse:false,gainDb:0,fadeInMs:0,fadeOutMs:0,normalizeDb:0,pitch:0,speedStretch:100},currentTime:0,selectionStart:null,selectionEnd:null,isPlaying:false,speed:1.0,volumeNodes:[],panningNodes:[],fadeInLen:0,fadeOutLen:0,graphMode:null,isLooping:false,loopCount:0}]);setActiveTab(tabId);};const handleEditClipInSubTab=(trackId,clipId)=>{const track=activeTracks.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}]:[];const clip=clips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+trackId);if(!clip||!clip.buffer)return;const resolvedClipId=clip.id==='default'?'default_'+trackId:clip.id;const existing=subTabs.find(s=>s.clipId===resolvedClipId&&s.trackId===trackId);if(existing){setActiveTab(existing.id);showToast(`Sub Tab for "${clip.name}" already open.`,'info');return;}const sr=clip.buffer.sampleRate;const len=clip.buffer.length;const numChannels=clip.buffer.numberOfChannels||1;const ctx=getAudioContext();const subBuffer=ctx.createBuffer(numChannels,len,sr);for(let c=0;c[...prev,{id:tabId,label:tabLabel,trackId:trackId,clipId:resolvedClipId,startTime:clip.startTime,endTime:clip.startTime+clip.buffer.duration,buffer:subBuffer,channelInfo:subChannelInfo,effects:{reverse:false,gainDb:0,fadeInMs:0,fadeOutMs:0,normalizeDb:0,pitch:0,speedStretch:100},currentTime:0,selectionStart:null,selectionEnd:null,isPlaying:false,speed:1.0,volumeNodes:[],panningNodes:[],fadeInLen:0,fadeOutLen:0,graphMode:null,isLooping:false,loopCount:0}]);setActiveTab(tabId);};const handleEditMidiInTab=(trackId,midiItemId)=>{const track=activeTracks.find(t=>t.id===trackId);if(!track)return;const midiItem=(track.midiItems||[]).find(m=>m.id===midiItemId);if(!midiItem)return;const existing=subTabs.find(s=>s.type==='PIANO_ROLL'&&s.target_id===midiItemId);if(existing){setActiveTab(existing.id);showToast('Piano Roll cho nốt MIDI đã được mở.','info');return;}const tabId='midi_'+Date.now();const tabLabel=`Piano Roll: ${midiItem.name||'MIDI'}`;const newTab={id:tabId,label:tabLabel,type:'PIANO_ROLL',trackId:trackId,target_id:midiItemId,parent_tab_id:activeTab==='main'?null:activeTab,notes:midiItem.notes||[],duration:midiItem.duration||4,viewport_start_bar:0.0,viewport_bar_width:8.0,scroll_y_pitch:60,snap_resolution:snapValue||"1/16",note_selection:[]};setSubTabs(prev=>[...prev,newTab]);setActiveTab(tabId);};const handleUpdateMidiNotes=(tabId,trackId,midiItemId,updatedNotes)=>{setSubTabs(prev=>prev.map(s=>s.id===tabId?{...s,notes:updatedNotes}:s));const isSectionTrack=sessionTabs.some(s=>s.tracks.some(t=>t.id===trackId));if(isSectionTrack){setSessionTabs(prev=>prev.map(s=>{if(!s.tracks.some(t=>t.id===trackId))return s;return{...s,tracks:s.tracks.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:(t.midiItems||[]).map(m=>{if(m.id!==midiItemId)return m;return{...m,notes:updatedNotes};})};})};}));}else{setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:(t.midiItems||[]).map(m=>{if(m.id!==midiItemId)return m;return{...m,notes:updatedNotes};})};}));}};// ── Double-click/Edit Section: open Main Session in new tab ── +const existing=subTabs.find(s=>s.trackId===trackId&&s.startTime===selLeft&&s.endTime===selRight);if(existing){setActiveTab(existing.id);showToast(`Sub Tab already open.`,'info');return;}const sr=t.buffer.sampleRate;const trackStart=t.startTime||0;const relSelLeft=Math.max(0,selLeft-trackStart);const relSelRight=Math.max(0,selRight-trackStart);const startSample=Math.max(0,Math.floor(relSelLeft*sr));const endSample=Math.min(t.buffer.length,Math.floor(relSelRight*sr));const len=endSample-startSample;if(len<100){showToast('Khoảng chọn quá ngắn.','warning');return;}const ctx=getAudioContext();const numChannels=t.buffer.numberOfChannels||1;const subBuffer=ctx.createBuffer(numChannels,len,sr);for(let c=0;c[...prev,{id:tabId,label:tabLabel,trackId:trackId,startTime:selLeft,endTime:selRight,buffer:subBuffer,channelInfo:subChannelInfo,effects:{reverse:false,gainDb:0,fadeInMs:0,fadeOutMs:0,normalizeDb:0,pitch:0,speedStretch:100},currentTime:0,selectionStart:null,selectionEnd:null,isPlaying:false,speed:1.0,volumeNodes:[],panningNodes:[],fadeInLen:0,fadeOutLen:0,graphMode:null,isLooping:false,loopCount:0}]);setActiveTab(tabId);};const handleEditClipInSubTab=(trackId,clipId)=>{const track=activeTracks.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}]:[];const clip=clips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+trackId);if(!clip||!clip.buffer)return;const resolvedClipId=clip.id==='default'?'default_'+trackId:clip.id;const existing=subTabs.find(s=>s.clipId===resolvedClipId&&s.trackId===trackId);if(existing){setActiveTab(existing.id);showToast(`Sub Tab for "${clip.name}" already open.`,'info');return;}const sr=clip.buffer.sampleRate;const len=clip.buffer.length;const numChannels=clip.buffer.numberOfChannels||1;const ctx=getAudioContext();const subBuffer=ctx.createBuffer(numChannels,len,sr);for(let c=0;c[...prev,{id:tabId,label:tabLabel,trackId:trackId,clipId:resolvedClipId,startTime:clip.startTime,endTime:clip.startTime+clip.buffer.duration,buffer:subBuffer,channelInfo:subChannelInfo,effects:{reverse:false,gainDb:0,fadeInMs:0,fadeOutMs:0,normalizeDb:0,pitch:0,speedStretch:100},currentTime:0,selectionStart:null,selectionEnd:null,isPlaying:false,speed:1.0,volumeNodes:[],panningNodes:[],fadeInLen:0,fadeOutLen:0,graphMode:null,isLooping:false,loopCount:0}]);setActiveTab(tabId);};const handleEditMidiInTab=(trackId,midiItemId)=>{const track=activeTracks.find(t=>t.id===trackId);if(!track)return;const midiItem=(track.midiItems||[]).find(m=>m.id===midiItemId);if(!midiItem)return;const existing=subTabs.find(s=>s.type==='PIANO_ROLL'&&s.target_id===midiItemId);if(existing){setActiveTab(existing.id);showToast('Piano Roll cho nốt MIDI đã được mở.','info');return;}const tabId='midi_'+Date.now();const tabLabel=`Piano Roll: ${midiItem.name||'MIDI'}`;const newTab={id:tabId,label:tabLabel,type:'PIANO_ROLL',trackId:trackId,target_id:midiItemId,parent_tab_id:activeTab==='main'?null:activeTab,notes:midiItem.notes||[],duration:midiItem.duration||4,viewport_start_bar:0.0,viewport_bar_width:8.0,scroll_y_pitch:60,snap_resolution:snapValue||"1/16",note_selection:[]};setSubTabs(prev=>[...prev,newTab]);setActiveTab(tabId);};const handleUpdateMidiNotes=(tabId,notes)=>{setSubTabs(prev=>prev.map(s=>s.id===tabId?{...s,notes:notes}:s));};const handleSaveMidiNotes=(tabId,trackId,midiItemId,updatedNotes)=>{const isSectionTrack=sessionTabs.some(s=>s.tracks.some(t=>t.id===trackId));if(isSectionTrack){setSessionTabs(prev=>prev.map(s=>{if(!s.tracks.some(t=>t.id===trackId))return s;return{...s,tracks:s.tracks.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:(t.midiItems||[]).map(m=>{if(m.id!==midiItemId)return m;return{...m,notes:updatedNotes};})};})};}));}else{setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:(t.midiItems||[]).map(m=>{if(m.id!==midiItemId)return m;return{...m,notes:updatedNotes};})};}));}showToast('Đã lưu các chỉnh sửa nốt MIDI vào item cha!','success');};const handleSaveSectionTab=tabId=>{const tab=sessionTabs.find(s=>s.id===tabId);if(!tab)return;const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;const secondsPerBar=secondsPerBeat*4;const durationSec=(tab.length_bars||16.0)*secondsPerBar;setTracks(prev=>prev.map(t=>{if(!t.sections||t.sections.length===0)return t;return{...t,sections:t.sections.map(s=>{if(s.sectionId!==tab.sectionId)return s;return{...s,name:tab.name,duration:durationSec};})};}));showToast(`Đã lưu nội dung Section "${tab.name}" vào Main Session!`,'success');};// ── Double-click/Edit Section: open Main Session in new tab ── const handleEditSectionInTab=(trackId,sectionId)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const section=(track.sections||[]).find(s=>s.id===sectionId);if(!section)return;const existing=sessionTabs.find(s=>s.sectionId===sectionId);if(existing){setActiveTab(existing.id);showToast(`Tab "${section.name}" already open.`,'info');return;}const tabId='session_'+Date.now();const tabName=section.name||'Section';const clonedTracks=tracks.map(t=>({...t,clips:[],sections:[],midiItems:[],markers:[],isArmed:false,monitoringEnabled:true}));setSessionTabs(prev=>[...prev,{id:tabId,name:tabName,sectionId:sectionId,tracks:clonedTracks}]);setActiveTab(tabId);};// ── Sub Tab: apply effects & merge back (LOOP_EDITOR_2.md §1.2) ── const applySubTab=tabId=>{const subTab=subTabs.find(s=>s.id===tabId);if(!subTab||!subTab.buffer)return;const track=activeTracks.find(t=>t.id===subTab.trackId);if(!track||!track.buffer)return;const beforeSnap=captureTrackSnapshot(subTab.trackId);// Clone buffer and apply effects const ctx=getAudioContext();const sr=subTab.buffer.sampleRate;const eff=subTab.buffer.getChannelData(0);let resultBuffer=ctx.createBuffer(1,eff.length,sr);let resultData=resultBuffer.getChannelData(0);resultData.set(eff);// Apply effects inline @@ -291,5 +298,5 @@ 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)return{success:false,error:'Track has no audio clips'};const totalDuration=Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration/(c.speed||1.0):0)));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 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bổ sung + +### 1. Quản lý Tab & Tên Tab +- **Gán tên tab**: Khi mở Piano Roll, gán tên tab hiển thị là `Piano Roll: [Tên MIDI Item]` để khớp chính xác. +- **Không mất dữ liệu khi mở Section Tab**: Khi mở thêm Section tab mới, trạng thái và các nốt nhạc đang sửa đổi trong tab Piano Roll phải được giữ nguyên trong React state (`subTabs`), không bị xoá hay reset. +- **Tạo tab con cho Section Tab**: Nếu mở MIDI item thuộc một Section-tab, hệ thống sẽ tạo một tab Piano Roll tương ứng (nhận `parent_tab_id` là Section tab đó) để quản lý độc lập. +- **Mở lại tab cũ**: Khi kích hoạt chỉnh sửa MIDI item đã có tab Piano Roll mở sẵn, chuyển đổi `activeTab` về tab đó mà không tạo thêm tab mới trùng lặp. + +### 2. Cơ chế Lưu (Save) thủ công +- **Lưu nốt MIDI**: Thay vì tự động cập nhật nốt nhạc thời gian thực về track gốc làm nặng ứng dụng, các chỉnh sửa nốt nhạc trong Piano Roll sẽ lưu cục bộ trong tab. Khi nhấn nút **"Lưu"** (Save) trên Piano Roll tab, nốt nhạc mới được cập nhật vào MIDI item cha. +- **Lưu Section Tab**: Bổ sung nút **"Lưu Section"** trên thanh công cụ của Section Tab. Khi bấm, tên và thời lượng (duration) của Section Tab sẽ cập nhật ngược lại vào block Section item ở **Main Session**. + +### 3. Cải tiến tương tác Chuột trong Piano Roll +- **Ctrl + Click**: Vẽ nhanh 1 nốt nhạc mới tại tọa độ click (áp dụng snap). +- **Nhấp & Kéo (Click & Drag) ở khoảng trống**: Quét khung chọn (marquee selection) để chọn nhiều nốt cùng lúc. +- **Kéo cạnh phải nốt**: Thay đổi thời lượng nốt nhạc (Resize). +- **Kéo phần thân nốt**: Di chuyển nốt nhạc theo cao độ (pitch) và thời gian (beat). Nếu có nhiều nốt đang được chọn, di chuyển toàn bộ các nốt được chọn cùng nhau (multi-note move). +- **Shift + Cuộn chuột (Scroll)**: + - Nếu cuộn chuột trên 1 nốt nhạc: Tăng/giảm velocity của nốt đó (khoảng cách 0.05, giới hạn từ 0.1 đến 1.0). + - Nếu cuộn chuột ngoài khoảng trống khi có các nốt được chọn: Tăng/giảm velocity của toàn bộ các nốt đang được chọn. +- **Click chuột phải**: Xóa nhanh note + +### 4. Thêm Thanh thước nhịp (Bar Ruler) +- Bổ sung thanh thước nhịp nằm phía trên lưới Piano Roll, hiển thị nhịp số bắt đầu từ `Bar 0`, `Bar 1`, `Bar 2`,... +- Thanh thước nhịp sẽ tự động cuộn ngang đồng bộ với lưới Piano Roll khi người dùng cuộn chuột ngang. + +--- + +## Đề xuất thay đổi mã nguồn + +### [app.jsx](file:///home/locpham/SonicForgeStudio/app/static/js/app.jsx) + +#### A. Cấu trúc lại `handleUpdateMidiNotes` và thêm `handleSaveMidiNotes` +- Tách biệt cập nhật cục bộ và lưu trữ về MIDI item gốc. + +#### B. Thêm nút "Lưu Section" và "Lưu MIDI Notes" +- Hiển thị nút **Lưu Section** trên thanh công cụ khi `activeTab` là Section Tab. +- Hiển thị nút **Lưu** màu xanh lá trên thanh điều khiển của `PianoRollTabEditor`. + +#### C. Viết lại `PianoRollTabEditor` hỗ trợ sự kiện chuột +- Quản lý trạng thái `selectedNoteIds` và `selectionMarquee`. +- Thêm sự kiện `wheel` hỗ trợ `Shift+Scroll` thay đổi velocity. +- Vẽ khung chọn `selectionMarquee` trên canvas. +- Thêm component / thẻ div Bar Ruler phía trên canvas và đồng bộ hóa cuộn (`onScroll` cập nhật `rulerScrollRef.current.scrollLeft`). + +--- + +## Kế hoạch xác minh + +### Kiểm tra tự động +- Chạy `PYTHONPATH=. pytest` để đảm bảo logic lưu trữ phía Python không bị ảnh hưởng. + +### Kiểm tra thủ công +1. **Kiểm tra tab & lưu trữ**: + - Bật Section Tab, tạo một MIDI item. Double-click để mở Piano Roll của nó. + - Sửa đổi nốt trong Piano Roll, chuyển qua lại giữa Main Session, Section Tab và Piano Roll. Xác minh nốt không bị mất. + - Bấm **Lưu** trong Piano Roll -> Nhìn ngoài timeline thấy MIDI item cập nhật nốt. + - Bấm **Lưu Section** -> Nhìn ngoài Main Session thấy Section item cập nhật tên/độ dài. +2. **Kiểm tra thao tác chuột**: + - Kiểm tra quét chuột chọn nhiều nốt, kéo di chuyển cả cụm. + - Kiểm tra `Ctrl+Click` vẽ nốt. + - Kiểm tra `Shift+Scroll` thay đổi độ đậm nhạt (velocity) của nốt. + - Kiểm tra thanh Bar Ruler hiển thị `Bar 0, Bar 1...` cuộn mượt mà.