diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx index e9e1959..c6d985d 100644 --- a/app/static/js/app.jsx +++ b/app/static/js/app.jsx @@ -677,7 +677,7 @@ const WaveformLane = ({ // Draw sections const sections = track.sections || []; sections.forEach(sec => { - const secStartLocal = sec.start * zoom - scrollLeft; + const secStartLocal = sec.start * zoom - scrollLeft; // use secStartLocal NOT secStart const secWidth = sec.duration * zoom; if (secStartLocal + secWidth < 0 || secStartLocal > drawWidth) return; ctx.fillStyle = sec.color ? sec.color + '44' : 'rgba(6, 182, 212, 0.25)'; @@ -690,6 +690,67 @@ const WaveformLane = ({ ctx.fillStyle = '#e4e4e7'; ctx.font = 'bold 9px sans-serif'; ctx.fillText(sec.name || 'Section', Math.max(secStartLocal + 4, 4), 14); + + // Draw sub-tracks within section + const subTracks = sec.tracks || []; + const subTrackCount = Math.min(subTracks.length, 4); + const subTrackHeight = (height - 20) / Math.max(1, subTrackCount); + const subColors = ['#fbbf24', '#a78bfa', '#ec4899', '#10b981']; + for (let stIdx = 0; stIdx < subTrackCount; stIdx++) { + const sub = subTracks[stIdx]; + if (!sub) continue; + const subY = 20 + stIdx * subTrackHeight; + ctx.fillStyle = sub.color ? sub.color + '22' : subColors[stIdx] + '22'; + ctx.fillRect(secStartLocal + 1, subY, secWidth - 2, subTrackHeight - 1); + // Draw clips as waveform bars + const subClips = sub.clips || []; + subClips.forEach(cl => { + if (!cl.buffer) return; + const sr = cl.buffer.sampleRate; + const bufData = cl.buffer.getChannelData(0); + const bufLen = bufData.length; + const clStartLocal = cl.startTime || 0; + const clDurLocal = bufLen / sr / (cl.speed || 1.0); + const clStartMain = secStartLocal + clStartLocal * zoom; + const clW = Math.max(1, clDurLocal * zoom); + const peakSamples = Math.max(10, Math.min(100, Math.floor(clW / 3))); + const step = Math.max(1, Math.floor(bufLen / peakSamples)); + for (let p = 0; p < peakSamples; p++) { + const sIdx = p * step; + let maxVal = 0; + for (let j = 0; j < step && sIdx + j < bufLen; j++) { + const abs = Math.abs(bufData[sIdx + j]); + if (abs > maxVal) maxVal = abs; + } + const bx = clStartMain + (p / peakSamples) * clW; + const barH = Math.max(1, maxVal * (subTrackHeight * 0.7)); + const barY = subY + (subTrackHeight - barH) / 2; + ctx.fillStyle = subColors[stIdx] + '99'; + ctx.fillRect(bx, barY, Math.max(1, clW / peakSamples), barH); + } + }); + // Draw MIDI items as colored note bars + const subMidi = sub.midiItems || []; + subMidi.forEach(item => { + const itemStartLocal = secStartLocal + (item.startTime || 0) * zoom; + const itemDurLocal = (item.duration || 1) * zoom; + const notes = item.notes || []; + const pitchMin = 36; + const pitchMax = 84; + notes.forEach(note => { + const beatSec = 60.0 / (parseInt(bpm) || 120); + const noteStartSec = (note.start_beat || 0) * beatSec; + const noteDurSec = Math.max(0.02, (note.duration_beats || 0.25) * beatSec); + const noteStartLocal = itemStartLocal + noteStartSec * zoom; + const nw = noteDurSec * zoom; + const pitchFrac = Math.max(0, Math.min(1, (note.pitch - pitchMin) / (pitchMax - pitchMin))); + const ny = subY + 2 + (1.0 - pitchFrac) * (subTrackHeight - 6); + const nh = Math.max(4, (subTrackHeight - 6) / (pitchMax - pitchMin) * 3); + ctx.fillStyle = subColors[stIdx] + 'cc'; + ctx.fillRect(Math.max(noteStartLocal, secStartLocal + 2), ny, Math.max(2, nw), nh); + }); + }); + } }); // Draw MIDI items @@ -4371,6 +4432,47 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const [draggedNote, setDraggedNote] = React.useState(null); // { mode: 'move'|'resize', idx, startOffsetBeat, originalStart } const [hoveredResizeIdx, setHoveredResizeIdx] = React.useState(-1); + // Undo/redo stacks + const undoStackRef = React.useRef([]); + const redoStackRef = React.useRef([]); + const notesBeforeDragRef = React.useRef(null); + + const pushToUndo = React.useCallback((prevNotes) => { + undoStackRef.current.push(JSON.parse(JSON.stringify(prevNotes))); + redoStackRef.current = []; + if (undoStackRef.current.length > 50) undoStackRef.current.shift(); + }, []); + + const handleUndo = React.useCallback(() => { + const prev = undoStackRef.current.pop(); + if (!prev) return; + redoStackRef.current.push(JSON.parse(JSON.stringify(notes))); + setNotes(prev); + setSelectedNoteIds([]); + }, [notes]); + + const handleRedo = React.useCallback(() => { + const next = redoStackRef.current.pop(); + if (!next) return; + undoStackRef.current.push(JSON.parse(JSON.stringify(notes))); + setNotes(next); + setSelectedNoteIds([]); + }, [notes]); + + React.useEffect(() => { + const handler = e => { + if ((e.ctrlKey || e.metaKey) && e.key === 'z' && !e.shiftKey) { + e.preventDefault(); + handleUndo(); + } else if ((e.ctrlKey || e.metaKey) && (e.key === 'y' || (e.key === 'z' && e.shiftKey))) { + e.preventDefault(); + handleRedo(); + } + }; + window.addEventListener('keydown', handler); + return () => window.removeEventListener('keydown', handler); + }, [handleUndo, handleRedo]); + React.useEffect(() => { onUpdateNotes(st.id, notes); }, [notes]); @@ -4644,6 +4746,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot return pitch === n.pitch && beat >= n.start_beat && beat < n.start_beat + n.duration_beats; }); if (clickedNote) { + pushToUndo(notes); setNotes(prev => prev.filter(n => n.id !== clickedNote.id)); setSelectedNoteIds(prev => prev.filter(id => id !== clickedNote.id)); showToast('Đã xóa nốt nhanh!', 'info'); @@ -4659,33 +4762,35 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot }); // Click on note → play note with SoundFont - if (clickedNoteIdx !== -1 && !e.ctrlKey && !e.shiftKey) { + if (clickedNoteIdx !== -1 && !e.ctrlKey && !e.shiftKey && !e.altKey) { if (window.SonicSF) { const ctx = getAudioContext(); window.SonicSF.playNote(notes[clickedNoteIdx].pitch, 100, 300, ctx.currentTime, st.instrumentProgram, null); } } - // Ctrl+click: selection mode (select notes by touching) - if (e.ctrlKey) { + // Ctrl+click: duplicate or selection + if (e.ctrlKey && !e.altKey) { if (clickedNoteIdx !== -1) { - // Ctrl+click on note: toggle selection + pushToUndo(notes); const clickedNote = notes[clickedNoteIdx]; - if (selectedNoteIds.includes(clickedNote.id)) { - setSelectedNoteIds(prev => prev.filter(id => id !== clickedNote.id)); - } else { - setSelectedNoteIds(prev => [...prev, clickedNote.id]); - } - // Start drag to select more notes - const selectedNotesOffset = notes - .filter(n => selectedNoteIds.includes(n.id) || n.id === notes[clickedNoteIdx].id) - .map(n => ({ id: n.id, originalStartBeat: n.start_beat, originalPitch: n.pitch })); + // Duplicate: clone all selected notes + clicked note + const idsToClone = [...new Set([...selectedNoteIds, clickedNote.id])]; + const clones = notes.filter(n => idsToClone.includes(n.id)).map(n => ({ + ...JSON.parse(JSON.stringify(n)), + id: 'note_' + Date.now() + Math.random().toString(36).substr(2, 8) + })); + setNotes(prev => [...prev, ...clones]); + const cloneIds = clones.map(c => c.id); + setSelectedNoteIds(cloneIds); + notesBeforeDragRef.current = JSON.parse(JSON.stringify(notes)); + const cloneOffsets = clones.map(n => ({ id: n.id, originalStartBeat: n.start_beat, originalPitch: n.pitch })); setDraggedNote({ mode: 'move', - idx: clickedNoteIdx, - startOffsetBeat: beat - notes[clickedNoteIdx].start_beat, - startOffsetPitch: pitch - notes[clickedNoteIdx].pitch, - selectedNotesOffset: selectedNotesOffset + idx: -1, + startOffsetBeat: beat, + startOffsetPitch: pitch, + selectedNotesOffset: cloneOffsets }); } else { // Ctrl+click on empty space: start selection marquee @@ -4698,8 +4803,28 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot return; } - // Hovered resize edge + // Hovered resize edge (Alt+resize for scaling) + if (hoveredResizeIdx !== -1 && e.altKey) { + pushToUndo(notes); + notesBeforeDragRef.current = JSON.parse(JSON.stringify(notes)); + const allSelected = [...new Set(selectedNoteIds.length > 0 ? selectedNoteIds : [notes[hoveredResizeIdx].id])]; + const selectedNotes = notes.filter(n => allSelected.includes(n.id)); + const firstStart = Math.min(...selectedNotes.map(n => n.start_beat)); + const draggedNote = notes[hoveredResizeIdx]; + setDraggedNote({ + mode: 'scale', + idx: hoveredResizeIdx, + originalEnd: draggedNote.start_beat + draggedNote.duration_beats, + firstStart: firstStart, + selectedNoteIds: allSelected + }); + return; + } + + // Hovered resize edge (normal resize) if (hoveredResizeIdx !== -1) { + pushToUndo(notes); + notesBeforeDragRef.current = JSON.parse(JSON.stringify(notes)); setDraggedNote({ mode: 'resize', idx: hoveredResizeIdx, @@ -4711,15 +4836,22 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot if (clickedNoteIdx !== -1) { // Click on existing note: drag-move const clickedNote = notes[clickedNoteIdx]; + let nextSelectedIds; if (!selectedNoteIds.includes(clickedNote.id)) { if (e.shiftKey) { - setSelectedNoteIds(prev => [...prev, clickedNote.id]); + nextSelectedIds = [...selectedNoteIds, clickedNote.id]; + setSelectedNoteIds(nextSelectedIds); } else { - setSelectedNoteIds([clickedNote.id]); + nextSelectedIds = [clickedNote.id]; + setSelectedNoteIds(nextSelectedIds); } + } else { + nextSelectedIds = selectedNoteIds; } + pushToUndo(notes); + notesBeforeDragRef.current = JSON.parse(JSON.stringify(notes)); const selectedNotesOffset = notes - .filter(n => selectedNoteIds.includes(n.id) || n.id === clickedNote.id) + .filter(n => nextSelectedIds.includes(n.id)) .map(n => ({ id: n.id, originalStartBeat: n.start_beat, @@ -4733,7 +4865,8 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot selectedNotesOffset: selectedNotesOffset }); } else { - // Click on empty space: DRAW a new note starting from click position + // Click on empty space: DRAW a new note (brush mode with visitedPitches) + pushToUndo(notes); const start = getSnapBeat(beat, snapVal); const initialDur = getSnapDuration(snapVal); const noteId = 'note_' + Date.now() + Math.random().toString(36).substr(2, 5); @@ -4753,7 +4886,10 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot startOffsetBeat: start, startOffsetPitch: pitch, drawNoteId: noteId, - drawDuration: initialDur + drawDuration: initialDur, + visitedPitches: [pitch], + initialBeat: start, + initialPitch: pitch }); // Play the note with SoundFont if (window.SonicSF) { @@ -4823,6 +4959,47 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot if (n.id !== draggedNote.drawNoteId) return n; return { ...n, duration_beats: newDur }; })); + // Brush: track visited pitches and create evenly-spaced notes + const visited = draggedNote.visitedPitches || []; + if (!visited.includes(pitch)) { + const newPitches = [...visited, pitch]; + const totalSpan = Math.max(0.125, beat - draggedNote.initialBeat); + const perNoteDur = totalSpan / newPitches.length; + const brushIds = draggedNote.brushIds || []; + setNotes(prev => { + const cleaned = prev.filter(n => !brushIds.includes(n.id)); + const brushNotes = newPitches.map((p, i) => ({ + id: 'note_' + Date.now() + Math.random().toString(36).substr(2, 8) + '_' + i, + pitch: p, + start_beat: draggedNote.initialBeat + i * perNoteDur, + duration_beats: perNoteDur * 0.9, + velocity: 0.8, + pan: 0.0 + })); + const newBrushIds = brushNotes.map(bn => bn.id); + setSelectedNoteIds(newBrushIds); + draggedNote.brushIds = newBrushIds; + draggedNote.visitedPitches = newPitches; + return [...cleaned, ...brushNotes]; + }); + } + return; + } + if (draggedNote.mode === 'scale') { + const newEnd = getSnapBeat(Math.max(draggedNote.firstStart + 0.125, beat), snapVal); + const scaleFactor = (newEnd - draggedNote.firstStart) / (draggedNote.originalEnd - draggedNote.firstStart); + const ids = draggedNote.selectedNoteIds || []; + const firstStart = draggedNote.firstStart; + setNotes(prev => prev.map(n => { + if (!ids.includes(n.id)) return n; + const relStart = n.start_beat - firstStart; + const relEnd = relStart + n.duration_beats; + return { + ...n, + start_beat: firstStart + relStart * scaleFactor, + duration_beats: Math.max(0.125, relEnd * scaleFactor - relStart * scaleFactor) + }; + })); return; } if (draggedNote.mode === 'resize') { @@ -5407,6 +5584,12 @@ const App = () => { 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 [instrumentSelectorTrackId, setInstrumentSelectorTrackId] = useState(null); + const [fxSelectorTrackId, setFxSelectorTrackId] = useState(null); + const handleSetTrackFx = (trackId, fxType) => { + updateActiveTracks(prev => prev.map(t => t.id === trackId ? { ...t, fxType } : t)); + setFxSelectorTrackId(null); + setTimeout(() => lucide.createIcons(), 50); + }; const [instrumentSelectorData, setInstrumentSelectorData] = useState(null); const openInstrumentSelector = trackId => { setInstrumentSelectorTrackId(trackId); @@ -5435,6 +5618,32 @@ const App = () => { const [synthCategory, setSynthCategory] = useState(null); // 'vst' | 'soundfont' const [selectedSoundFontId, setSelectedSoundFontId] = useState(null); const [sfPresets, setSfPresets] = useState(null); // presets from SoundFont + const [instrumentDropdownTrackId, setInstrumentDropdownTrackId] = useState(null); + const [instrumentDropdownBtnRect, setInstrumentDropdownBtnRect] = useState(null); + const [instrumentSearchQuery, setInstrumentSearchQuery] = useState(''); + const filteredInstruments = useMemo(() => { + if (!instrumentSelectorData || !instrumentSearchQuery) return { soundfonts: instrumentSelectorData?.soundfonts || [], vst: instrumentSelectorData?.vst_instruments || [] }; + const q = instrumentSearchQuery.toLowerCase(); + return { + soundfonts: (instrumentSelectorData.soundfonts || []).filter(sf => (sf.display || sf.name || sf.id).toLowerCase().includes(q)), + vst: (instrumentSelectorData.vst_instruments || []).filter(v => (v.name || v.id).toLowerCase().includes(q)) + }; + }, [instrumentSearchQuery, instrumentSelectorData]); + useEffect(() => { + if (!instrumentSelectorData) { + window.SonicAPI.listPlugins().then(data => setInstrumentSelectorData(data)).catch(() => {}); + } + }, []); + useEffect(() => { + if (!instrumentDropdownTrackId) return; + const handler = e => { + setInstrumentDropdownTrackId(null); + setInstrumentDropdownBtnRect(null); + setInstrumentSearchQuery(''); + }; + document.addEventListener('click', handler); + return () => document.removeEventListener('click', handler); + }, [instrumentDropdownTrackId]); const GM_INSTRUMENTS = [ "Acoustic Grand Piano","Bright Acoustic Piano","Electric Grand Piano","Honky-tonk Piano","Electric Piano 1","Electric Piano 2","Harpsichord","Clavi", "Celesta","Glockenspiel","Music Box","Vibraphone","Marimba","Xylophone","Tubular Bells","Dulcimer", @@ -5458,12 +5667,16 @@ const App = () => { if (t.id !== trackId) return t; return { ...t, instrumentId, instrumentProgram: programNumber !== undefined ? programNumber : undefined, instrumentName: displayName }; })); + setInstrumentDropdownTrackId(null); + setInstrumentDropdownBtnRect(null); setInstrumentSelectorTrackId(null); setSynthCategory(null); setSelectedSoundFontId(null); setTimeout(() => lucide.createIcons(), 50); }; const setTrackInstrument = (trackId, instrumentId, displayName) => { + setInstrumentDropdownTrackId(null); + setInstrumentDropdownBtnRect(null); if (instrumentId && instrumentId.startsWith('sf_')) { // Set instrument on track immediately so Synth button shows the name updateActiveTracks(prev => prev.map(t => { @@ -5605,6 +5818,7 @@ const App = () => { const [showFxRack, setShowFxRack] = useState(false); const [showMidiEvents, setShowMidiEvents] = useState(false); const [rightSidebarWidth, setRightSidebarWidth] = useState(320); + const [tcpWidth, setTcpWidth] = useState(320); const [mediaExplorerHeight, setMediaExplorerHeight] = useState(50); const [panelPositions, setPanelPositions] = useState({ export: 'bottom', @@ -6072,6 +6286,24 @@ const App = () => { document.addEventListener('mouseup', onUp); }; + // ── TCP Resizer ── + const startTcpResize = e => { + e.preventDefault(); + const startX = e.clientX; + const startWidth = tcpWidth; + const onMove = ev => { + const deltaX = ev.clientX - startX; + const newWidth = Math.max(280, Math.min(600, startWidth + deltaX)); + setTcpWidth(newWidth); + }; + const onUp = () => { + document.removeEventListener('mousemove', onMove); + document.removeEventListener('mouseup', onUp); + }; + document.addEventListener('mousemove', onMove); + document.addEventListener('mouseup', onUp); + }; + // ── Right Sidebar Row Resizer (Media Explorer / AI Panel) ── const startRowResize = e => { e.preventDefault(); @@ -6851,17 +7083,19 @@ const App = () => { const secondsPerBar = secondsPerBeat * 4; const durationSec = (tab.length_bars || 16.0) * secondsPerBar; + const contentTracks = tab.tracks ? tab.tracks.filter(tr => tr.clips?.length > 0 || tr.midiItems?.length > 0) : []; + 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; + if (s.sectionId !== tab.sectionId && s.id !== tab.sectionId) return s; return { ...s, name: tab.name, duration: durationSec, - tracks: tab.tracks + tracks: contentTracks }; }) }; @@ -6883,7 +7117,7 @@ const App = () => { 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 = section.tracks ? section.tracks : tracks.map(t => ({ + const clonedTracks = section.tracks ? JSON.parse(JSON.stringify(section.tracks)) : tracks.filter(t => t.id === trackId).map(t => ({ ...t, clips: [], sections: [], @@ -8472,6 +8706,53 @@ const App = () => { return () => cancelAnimationFrame(animationFrameIdRef.current); }, [isPlaying, subTabs, isLoopingSelection, selLeft, selRight, selectionMode, localSelectionTrackId, selectionCleared, activeTab]); + // ── FX Nodes ── + const createChorusNode = (context, inputNode, outputNode) => { + const dryGain = context.createGain(); + dryGain.gain.value = 0.6; + const wetGain = context.createGain(); + wetGain.gain.value = 0.5; + const delayNode = context.createDelay(); + delayNode.delayTime.value = 0.02; + const lfo = context.createOscillator(); + lfo.type = 'sine'; + lfo.frequency.value = 1.5; + const lfoGain = context.createGain(); + lfoGain.gain.value = 0.002; + lfo.connect(lfoGain); + lfoGain.connect(delayNode.delayTime); + lfo.start(); + inputNode.connect(dryGain); + inputNode.connect(delayNode); + delayNode.connect(wetGain); + dryGain.connect(outputNode); + wetGain.connect(outputNode); + return { stop: () => { try { lfo.stop(); } catch(e) {} } }; + }; + const createReverbNode = (context, inputNode, outputNode) => { + const dryGain = context.createGain(); + dryGain.gain.value = 0.6; + const wetGain = context.createGain(); + wetGain.gain.value = 0.4; + const convolver = context.createConvolver(); + const rate = context.sampleRate; + const len = rate * 2.0; + const impulse = context.createBuffer(2, len, rate); + const left = impulse.getChannelData(0); + const right = impulse.getChannelData(1); + for (let i = 0; i < len; i++) { + const decay = Math.exp(-i / (rate * 0.5)); + left[i] = (Math.random() * 2 - 1) * decay; + right[i] = (Math.random() * 2 - 1) * decay; + } + convolver.buffer = impulse; + inputNode.connect(dryGain); + inputNode.connect(convolver); + convolver.connect(wetGain); + dryGain.connect(outputNode); + wetGain.connect(outputNode); + }; + // ── Playback ── const getOrCreateTrackNode = (track, context) => { if (!track) return null; @@ -8484,12 +8765,41 @@ const App = () => { const pannerNode = context.createStereoPanner(); pannerNode.pan.setValueAtTime((track.pan ?? 0) / 100, context.currentTime); pannerNode.connect(context.destination); - gainNode.connect(pannerNode); - node = { gainNode, pannerNode }; + let fxStopFn; + if (track.fxType === 'chorus') { + const fxInput = context.createGain(); + gainNode.connect(fxInput); + const chorus = createChorusNode(context, fxInput, pannerNode); + fxStopFn = chorus.stop; + } else if (track.fxType === 'reverb') { + const fxInput = context.createGain(); + gainNode.connect(fxInput); + createReverbNode(context, fxInput, pannerNode); + fxStopFn = null; + } else { + gainNode.connect(pannerNode); + } + node = { gainNode, pannerNode, fxStopFn }; activeTrackNodesRef.current[track.id] = node; } return node.gainNode; }; + const getOrCreateSubTrackNode = (track, subTrack, context) => { + if (!track || !subTrack) return null; + const subKey = track.id + '_sub_' + subTrack.id; + let node = activeTrackNodesRef.current[subKey]; + if (!node) { + const gainNode = context.createGain(); + const volDb = subTrack.volumeDb ?? 0; + const volLinear = volDb <= -50 ? 0 : Math.pow(10, volDb / 20); + gainNode.gain.setValueAtTime(volLinear, context.currentTime); + const parentNode = getOrCreateTrackNode(track, context); + gainNode.connect(parentNode); + node = { gainNode, pannerNode: null }; + activeTrackNodesRef.current[subKey] = node; + } + return node.gainNode; + }; const playMidiPreviewNote = (pitch, velocity = 0.8, durationMs = 500) => { if (!window.SonicSF) return; @@ -8611,6 +8921,9 @@ const App = () => { const isSubPlayable = hasSubSolo ? subTrack.solo : !subTrack.muted; if (!isSubPlayable) return; + const subNode = getOrCreateSubTrackNode(track, subTrack, context); + if (!subNode) return; + // 1. Play clips in subTrack const subClips = subTrack.clips || []; subClips.forEach(clip => { @@ -8630,7 +8943,7 @@ const App = () => { const source = context.createBufferSource(); source.buffer = clip.buffer; source.playbackRate.value = clip.speed || 1.0; - source.connect(gainNode); + source.connect(subNode); if (offsetTime < activeStart) { const delay = activeStart - offsetTime; @@ -8674,7 +8987,7 @@ const App = () => { playDurMs, startTime, program, - gainNode + subNode ); } else { const remainingDurMs = (notePlayEndMain - offsetTime) * 1000; @@ -8684,7 +8997,7 @@ const App = () => { remainingDurMs, context.currentTime, program, - gainNode + subNode ); } } @@ -8864,6 +9177,9 @@ const App = () => { } catch (e) { } }); activeSourcesRef.current = []; + Object.values(activeTrackNodesRef.current).forEach(n => { + if (n.fxStopFn) n.fxStopFn(); + }); activeTrackNodesRef.current = {}; if (window.SonicSF) { window.SonicSF.stopAll(); @@ -13799,8 +14115,9 @@ const App = () => { }, activeTab === 'main' || sessionTabs.some(s => s.id === activeTab) ? /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("div", { ref: tcpContainerRef, onScroll: handleTCPScroll, - className: "w-[320px] shrink-0 z-20 bg-[#262626] overflow-y-auto flex flex-col border-r border-zinc-900 no-scrollbar", + className: "shrink-0 z-20 bg-[#262626] overflow-y-auto flex flex-col border-r border-zinc-900 no-scrollbar", style: { + width: tcpWidth + 'px', scrollbarWidth: 'none', msOverflowStyle: 'none' } @@ -13991,10 +14308,10 @@ const App = () => { title: "ARM (Record)", className: `px-1.5 py-0.5 text-[10px] rounded font-mono font-bold border transition flex items-center gap-0.5 ${track.isArmed ? 'bg-red-600 text-white border-red-500 hover:bg-red-500' : 'bg-zinc-800 text-zinc-400 border-transparent hover:text-zinc-200'}` }, /*#__PURE__*/React.createElement("i", { "data-lucide": "circle", className: `w-2.5 h-2.5 ${track.isArmed ? 'fill-white' : ''}` })), /*#__PURE__*/React.createElement("button", { - onClick: e => { e.stopPropagation(); openInstrumentSelector(track.id); }, + onClick: e => { e.stopPropagation(); const btn = e.currentTarget; setInstrumentDropdownTrackId(prev => prev === track.id ? null : track.id); setInstrumentDropdownBtnRect(btn.getBoundingClientRect()); setInstrumentSearchQuery(''); }, title: track.instrumentName || track.instrumentId || "Synth", - className: `px-1.5 py-0.5 text-[10px] rounded font-mono font-bold border transition flex items-center gap-0.5 ${track.instrumentId ? 'bg-violet-900 text-violet-300 border-violet-700' : 'bg-zinc-800 text-zinc-500 border-transparent hover:text-zinc-300'}` - }, /*#__PURE__*/React.createElement("i", { "data-lucide": "music", className: "w-3 h-3" })), /*#__PURE__*/React.createElement("button", { + className: `px-1.5 py-0.5 text-[10px] rounded font-mono font-bold border transition flex items-center gap-0.5 max-w-[60px] ${track.instrumentId ? 'bg-violet-900 text-violet-300 border-violet-700' : 'bg-zinc-800 text-zinc-500 border-transparent hover:text-zinc-300'}` + }, /*#__PURE__*/React.createElement("i", { "data-lucide": "music", className: "w-3 h-3 shrink-0" }), /*#__PURE__*/React.createElement("span", { className: "truncate text-[9px]" }, track.instrumentName || track.instrumentId || (instrumentDropdownTrackId === track.id ? '' : 'Synth')), /*#__PURE__*/React.createElement("i", { "data-lucide": "chevron-down", className: "w-2.5 h-2.5 shrink-0" })), /*#__PURE__*/React.createElement("button", { onClick: e => { e.stopPropagation(); toggleTrackMonitor(track.id); @@ -14109,10 +14426,7 @@ const App = () => { "data-lucide": "upload", className: "w-3 h-3" })), " File"), /*#__PURE__*/React.createElement("button", { - onClick: e => { - e.stopPropagation(); - showToast('FX panel for track ' + track.id, 'info'); - }, + onClick: e => { e.stopPropagation(); setFxSelectorTrackId(track.id); }, className: "px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-purple-400 border border-purple-900 rounded text-xs font-bold flex items-center gap-1" }, /*#__PURE__*/React.createElement("span", { className: "inline-flex items-center shrink-0" @@ -14121,17 +14435,15 @@ const App = () => { className: "w-3 h-3" })), " FX: ", /*#__PURE__*/React.createElement("span", { className: "text-zinc-500 font-normal" - }, " None")), /*#__PURE__*/React.createElement("button", { - onClick: (e) => { e.stopPropagation(); openInstrumentSelector(track.id); }, - className: "px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-amber-400 border border-amber-800 rounded text-xs font-bold flex items-center gap-1" + }, track.fxType || "None")), /*#__PURE__*/React.createElement("button", { + onClick: (e) => { e.stopPropagation(); const btn = e.currentTarget; setInstrumentDropdownTrackId(prev => prev === track.id ? null : track.id); setInstrumentDropdownBtnRect(btn.getBoundingClientRect()); setInstrumentSearchQuery(''); }, + className: "px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-amber-400 border border-amber-800 rounded text-xs font-bold flex items-center gap-1 max-w-[120px]" }, /*#__PURE__*/React.createElement("span", { className: "inline-flex items-center shrink-0" }, /*#__PURE__*/React.createElement("i", { "data-lucide": "music", className: "w-3 h-3" - })), " Synth: ", /*#__PURE__*/React.createElement("span", { - className: "text-zinc-500 font-normal" - }, track.instrumentName || track.instrumentId || "None"))), /*#__PURE__*/React.createElement("div", { + })), /*#__PURE__*/React.createElement("span", { className: "truncate text-[10px]" }, track.instrumentName || track.instrumentId || "Synth"), /*#__PURE__*/React.createElement("i", { "data-lucide": "chevron-down", className: "w-3 h-3 shrink-0" }))), /*#__PURE__*/React.createElement("div", { onMouseDown: e => handleTrackResizeMouseDown(e, track.id), className: "absolute bottom-0 left-0 right-0 h-1 cursor-ns-resize z-30 hover:bg-cyan-500/50 transition-colors", onClick: e => e.stopPropagation() @@ -14139,6 +14451,9 @@ const App = () => { })), /*#__PURE__*/React.createElement("div", { className: "h-[48px] border-r border-zinc-900 bg-[#1e1e1e]/50 shrink-0" })), /*#__PURE__*/React.createElement("div", { + className: "w-1 cursor-ew-resize hover:bg-cyan-500/50 active:bg-cyan-400 transition-colors shrink-0 z-10", + onMouseDown: startTcpResize + }), /*#__PURE__*/React.createElement("div", { ref: handleTimelineWrapperRef, onScroll: handleTimelineScroll, className: "flex-1 relative z-10 overflow-x-auto overflow-y-auto min-w-0" @@ -14354,13 +14669,14 @@ const App = () => { })() : (st.buffer && 'duration' in st.buffer ? st.buffer.duration : 4.0); const subTabTimelineWidth = Math.max(zoom * subTabDuration, viewportWidth); return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("div", { - className: "w-[320px] shrink-0 z-30 bg-[#262626] overflow-y-scroll no-scrollbar flex flex-col border-r border-zinc-900", - style: { - scrollbarWidth: 'none', - msOverflowStyle: 'none' - } - }, /*#__PURE__*/React.createElement("div", { - className: "sticky top-0 z-50 flex items-center h-10 border-b border-zinc-900 bg-[#242424] px-2 justify-between shrink-0" + className: "shrink-0 z-30 bg-[#262626] overflow-y-scroll no-scrollbar flex flex-col border-r border-zinc-900", + style: { + width: tcpWidth + 'px', + scrollbarWidth: 'none', + msOverflowStyle: 'none' + } + }, /*#__PURE__*/React.createElement("div", { + className: "sticky top-0 z-50 flex items-center h-10 border-b border-zinc-900 bg-[#242424] px-2 justify-between shrink-0" }, /*#__PURE__*/React.createElement("span", { className: "text-xs font-bold text-zinc-500 uppercase" }, "Sub-Tab"), /*#__PURE__*/React.createElement("button", { @@ -14664,6 +14980,9 @@ const App = () => { })), " Save"))) : /*#__PURE__*/React.createElement("div", { className: "flex-1 flex items-center justify-center text-xs text-zinc-500" }, "Track not found")), /*#__PURE__*/React.createElement("div", { + className: "w-1 cursor-ew-resize hover:bg-cyan-500/50 active:bg-cyan-400 transition-colors shrink-0 z-10", + onMouseDown: startTcpResize + }), /*#__PURE__*/React.createElement("div", { ref: handleTimelineWrapperRef, className: "flex-1 relative z-10 overflow-x-auto overflow-y-auto min-w-0" }, /*#__PURE__*/React.createElement("div", { @@ -15272,7 +15591,49 @@ const App = () => { /*#__PURE__*/React.createElement("p", { className: "text-xs text-zinc-500 py-4 text-center" }, "No plugins available. Upload SoundFont via Tools \u2192 Plugin Manager.") ) ) - )))); + ))), fxSelectorTrackId && /*#__PURE__*/React.createElement("div", { + className: "fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm", + onClick: () => setFxSelectorTrackId(null) + }, /*#__PURE__*/React.createElement("div", { + className: "bg-[#262626] border border-[#383838] rounded-xl shadow-2xl w-64 p-4 text-slate-200", + onClick: e => e.stopPropagation() + }, /*#__PURE__*/React.createElement("h3", { className: "text-sm font-bold text-purple-400 mb-3" }, "Track FX"), /*#__PURE__*/React.createElement("div", { className: "space-y-1" }, + /*#__PURE__*/React.createElement("button", { onClick: () => handleSetTrackFx(fxSelectorTrackId, null), className: "w-full text-left px-3 py-2 text-xs rounded bg-zinc-800 hover:bg-zinc-700 text-zinc-400" }, "None"), + /*#__PURE__*/React.createElement("button", { onClick: () => handleSetTrackFx(fxSelectorTrackId, 'chorus'), className: "w-full text-left px-3 py-2 text-xs rounded bg-zinc-800 hover:bg-cyan-800 text-cyan-300" }, "Chorus"), + /*#__PURE__*/React.createElement("button", { onClick: () => handleSetTrackFx(fxSelectorTrackId, 'reverb'), className: "w-full text-left px-3 py-2 text-xs rounded bg-zinc-800 hover:bg-purple-800 text-purple-300" }, "Reverb") + ))), instrumentDropdownTrackId && instrumentDropdownBtnRect && /*#__PURE__*/React.createElement("div", { + "data-instr-dropdown": "", + className: "fixed z-[100] bg-[#1e1e1e] border border-zinc-700 rounded shadow-xl w-[220px] max-h-[300px] flex flex-col", + style: { + top: instrumentDropdownBtnRect.bottom + 4, + left: Math.max(4, Math.min(instrumentDropdownBtnRect.left, window.innerWidth - 224)) + } + }, /*#__PURE__*/React.createElement("input", { + type: "text", + placeholder: "T\u00ecm nh\u1ea1c c\u1ee5...", + value: instrumentSearchQuery, + onChange: e => setInstrumentSearchQuery(e.target.value), + autoFocus: true, + className: "w-full bg-black border-b border-zinc-700 px-2 py-1.5 text-xs outline-none" + }), /*#__PURE__*/React.createElement("div", { className: "flex-1 overflow-y-auto" }, + /*#__PURE__*/React.createElement("button", { + onClick: () => setTrackInstrumentWithProgram(instrumentDropdownTrackId, null), + className: "w-full text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-zinc-700 text-zinc-400" + }, "None (Default Synth)"), + filteredInstruments.soundfonts.length > 0 && /*#__PURE__*/React.createElement("div", { className: "text-[10px] text-zinc-500 px-3 py-1 mt-1 uppercase font-bold" }, "SoundFonts"), + filteredInstruments.soundfonts.map((sf, i) => /*#__PURE__*/React.createElement("button", { + key: "sfd_" + i, + onClick: () => { setInstrumentDropdownTrackId(null); setInstrumentDropdownBtnRect(null); setTrackInstrument(instrumentDropdownTrackId, "sf_" + sf.id, sf.display || sf.name || sf.id); }, + className: "w-full text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-amber-800 text-zinc-200 flex items-center justify-between" + }, /*#__PURE__*/React.createElement("span", { className: "truncate" }, sf.display || sf.name || sf.id), /*#__PURE__*/React.createElement("span", { className: "text-[10px] text-amber-400 shrink-0 ml-1" }, "SF"))), + filteredInstruments.vst.length > 0 && /*#__PURE__*/React.createElement("div", { className: "text-[10px] text-zinc-500 px-3 py-1 mt-1 uppercase font-bold" }, "VST Instruments"), + filteredInstruments.vst.map((v, i) => /*#__PURE__*/React.createElement("button", { + key: "vstd_" + i, + onClick: () => { setInstrumentDropdownTrackId(null); setInstrumentDropdownBtnRect(null); setTrackInstrumentWithProgram(instrumentDropdownTrackId, v.id, undefined, v.name || v.id); }, + className: "w-full text-left px-3 py-1.5 text-xs bg-zinc-800 hover:bg-violet-800 text-zinc-200 flex items-center justify-between" + }, /*#__PURE__*/React.createElement("span", { className: "truncate" }, v.name || v.id), /*#__PURE__*/React.createElement("span", { className: "text-[10px] text-cyan-400 shrink-0 ml-1" }, v.type || "VST"))), + (!filteredInstruments.soundfonts.length && !filteredInstruments.vst.length) && /*#__PURE__*/React.createElement("p", { className: "text-xs text-zinc-500 py-4 text-center" }, "Kh\u00f4ng t\u00ecm th\u1ea5y nh\u1ea1c c\u1ee5 n\u00e0o") + ))); }; const root = ReactDOM.createRoot(document.getElementById('root')); root.render(/*#__PURE__*/React.createElement(App, null)); diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index 0bc1421..3d7ae80 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -33,8 +33,11 @@ ctx.lineWidth=1.2;if(samplesPerPixel<4){// High-zoom continuous vector line rend const visibleTStart=(drawXStartLocal-xStartLocal)/zoom;const visibleTEnd=(drawXEndLocal-xStartLocal)/zoom;const startSample=Math.max(0,Math.floor(visibleTStart*clipSpeed*sampleRate));const endSample=Math.min(totalSamples,Math.ceil(visibleTEnd*clipSpeed*sampleRate));ctx.beginPath();let first=true;const maxSamples=50000;const vectorStep=Math.max(1,Math.floor((endSample-startSample)/maxSamples));for(let i=startSample;imaxVal)maxVal=abs;}const peakHeight=maxVal*peakRatio;ctx.beginPath();ctx.moveTo(pxLocal,mid-peakHeight);ctx.lineTo(pxLocal,mid+peakHeight);ctx.stroke();}}});});}else{ctx.fillStyle='#444';ctx.font='12px Inter, sans-serif';ctx.textAlign='center';ctx.fillText('Kéo thả hoặc tải file âm thanh vào Track này',drawWidth/2,height/2);}// Draw sections -const sections=track.sections||[];sections.forEach(sec=>{const secStartLocal=sec.start*zoom-scrollLeft;const secWidth=sec.duration*zoom;if(secStartLocal+secWidth<0||secStartLocal>drawWidth)return;ctx.fillStyle=sec.color?sec.color+'44':'rgba(6, 182, 212, 0.25)';ctx.fillRect(secStartLocal,2,secWidth,height-4);ctx.strokeStyle=sec.color||'#06b6d4';ctx.lineWidth=1;ctx.setLineDash([4,4]);ctx.strokeRect(secStartLocal,2,secWidth,height-4);ctx.setLineDash([]);ctx.fillStyle='#e4e4e7';ctx.font='bold 9px sans-serif';ctx.fillText(sec.name||'Section',Math.max(secStartLocal+4,4),14);// Draw sub-tracks inside section -const subTracks=sec.tracks||[];if(subTracks.length>0){const maxSubTracks=4;const visibleSubs=subTracks.slice(0,maxSubTracks);const subTrackHeight=(height-24)/Math.max(visibleSubs.length,1);const subColors=['#fbbf24','#a78bfa','#ec4899','#10b981'];visibleSubs.forEach((sub,si)=>{const subY=24+si*subTrackHeight;ctx.fillStyle=subColors[si%subColors.length]+'22';ctx.fillRect(Math.max(secStartLocal,0),subY,secWidth-Math.max(0,-secStartLocal),subTrackHeight-1);ctx.fillStyle=subColors[si%subColors.length];ctx.font='8px sans-serif';ctx.fillText(sub.name||'Sub '+(si+1),Math.max(secStartLocal+3,3),subY+9);(sub.clips||[]).forEach(clip=>{if(!clip.buffer)return;const clipStartLocal=(secStart+(clip.startTime||0))*zoom-scrollLeft;const clipW=Math.max(2,clip.buffer.duration/(clip.speed||1.0)*zoom);if(clipStartLocal+clipWsecStartLocal+secWidth)return;const peaks=100;const data=clip.buffer.getChannelData(0);const step=Math.floor(data.length/peaks);for(let p=0;p{const midiStartLocal=(secStart+midi.startTime)*zoom-scrollLeft;const midiW=midi.duration*zoom;if(midiStartLocal+midiWsecStartLocal+secWidth)return;ctx.fillStyle=subColors[si%subColors.length]+'33';ctx.fillRect(midiStartLocal,subY+10,midiW,subTrackHeight-12);ctx.fillStyle=subColors[si%subColors.length];ctx.font='7px sans-serif';ctx.fillText(midi.name||'MIDI',midiStartLocal+2,subY+subTrackHeight-3);(midi.notes||[]).forEach(note=>{const secondsPerBeat=60.0/(parseInt(bpm)||120);const noteStartSec=(note.start_beat||0)*secondsPerBeat;const noteDurSec=Math.max(0.02,(note.duration_beats||0.25)*secondsPerBeat);const nx=(secStart+midi.startTime+noteStartSec)*zoom-scrollLeft;const nw2=noteDurSec*zoom;const pitchMin=36,pitchMax=84;const pitchFrac=Math.max(0,Math.min(1,((note.pitch||60)-pitchMin)/(pitchMax-pitchMin)));const ny2=subY+10+(1-pitchFrac)*(subTrackHeight-14);const nh2=Math.max(4,(subTrackHeight-14)/(pitchMax-pitchMin)*3);ctx.fillStyle=subColors[si%subColors.length];ctx.fillRect(Math.max(nx,secStartLocal+2),ny2,Math.max(2,nw2),nh2);});});});}});// Draw MIDI items +const sections=track.sections||[];sections.forEach(sec=>{const secStartLocal=sec.start*zoom-scrollLeft;// use secStartLocal NOT secStart +const secWidth=sec.duration*zoom;if(secStartLocal+secWidth<0||secStartLocal>drawWidth)return;ctx.fillStyle=sec.color?sec.color+'44':'rgba(6, 182, 212, 0.25)';ctx.fillRect(secStartLocal,2,secWidth,height-4);ctx.strokeStyle=sec.color||'#06b6d4';ctx.lineWidth=1;ctx.setLineDash([4,4]);ctx.strokeRect(secStartLocal,2,secWidth,height-4);ctx.setLineDash([]);ctx.fillStyle='#e4e4e7';ctx.font='bold 9px sans-serif';ctx.fillText(sec.name||'Section',Math.max(secStartLocal+4,4),14);// Draw sub-tracks within section +const subTracks=sec.tracks||[];const subTrackCount=Math.min(subTracks.length,4);const subTrackHeight=(height-20)/Math.max(1,subTrackCount);const subColors=['#fbbf24','#a78bfa','#ec4899','#10b981'];for(let stIdx=0;stIdx{if(!cl.buffer)return;const sr=cl.buffer.sampleRate;const bufData=cl.buffer.getChannelData(0);const bufLen=bufData.length;const clStartLocal=cl.startTime||0;const clDurLocal=bufLen/sr/(cl.speed||1.0);const clStartMain=secStartLocal+clStartLocal*zoom;const clW=Math.max(1,clDurLocal*zoom);const peakSamples=Math.max(10,Math.min(100,Math.floor(clW/3)));const step=Math.max(1,Math.floor(bufLen/peakSamples));for(let p=0;pmaxVal)maxVal=abs;}const bx=clStartMain+p/peakSamples*clW;const barH=Math.max(1,maxVal*(subTrackHeight*0.7));const barY=subY+(subTrackHeight-barH)/2;ctx.fillStyle=subColors[stIdx]+'99';ctx.fillRect(bx,barY,Math.max(1,clW/peakSamples),barH);}});// Draw MIDI items as colored note bars +const subMidi=sub.midiItems||[];subMidi.forEach(item=>{const itemStartLocal=secStartLocal+(item.startTime||0)*zoom;const itemDurLocal=(item.duration||1)*zoom;const notes=item.notes||[];const pitchMin=36;const pitchMax=84;notes.forEach(note=>{const beatSec=60.0/(parseInt(bpm)||120);const noteStartSec=(note.start_beat||0)*beatSec;const noteDurSec=Math.max(0.02,(note.duration_beats||0.25)*beatSec);const noteStartLocal=itemStartLocal+noteStartSec*zoom;const nw=noteDurSec*zoom;const pitchFrac=Math.max(0,Math.min(1,(note.pitch-pitchMin)/(pitchMax-pitchMin)));const ny=subY+2+(1.0-pitchFrac)*(subTrackHeight-6);const nh=Math.max(4,(subTrackHeight-6)/(pitchMax-pitchMin)*3);ctx.fillStyle=subColors[stIdx]+'cc';ctx.fillRect(Math.max(noteStartLocal,secStartLocal+2),ny,Math.max(2,nw),nh);});});}});// Draw MIDI items const midiItems=track.midiItems||[];midiItems.forEach(midi=>{const midiStartLocal=midi.startTime*zoom-scrollLeft;const midiWidth=midi.duration*zoom;if(midiStartLocal+midiWidth<0||midiStartLocal>drawWidth)return;const isRecordingItem=midi.name==='Recording...';if(isRecordingItem&&Math.random()<0.05){console.log(`[DevLog] [Canvas Draw] Rendering MIDI item: ID=${midi.id}, Name="${midi.name}", Start=${midiStartLocal.toFixed(1)}px, Width=${midiWidth.toFixed(1)}px, NotesCount=${midi.notes?.length||0}`);}ctx.fillStyle=isRecordingItem?'rgba(239, 68, 68, 0.2)':'#a78bfa33';ctx.fillRect(midiStartLocal,2,midiWidth,height-4);ctx.strokeStyle=isRecordingItem?'#ef4444':'#a78bfa';ctx.lineWidth=1.5;ctx.strokeRect(midiStartLocal,2,midiWidth,height-4);ctx.fillStyle=isRecordingItem?'#fca5a5':'#c4b5fd';ctx.font='bold 9px sans-serif';ctx.fillText(isRecordingItem?'[Ghi MIDI...]':midi.name||'MIDI',Math.max(midiStartLocal+4,4),14);const midiNotes=midi.notes||[];if(midiNotes.length>0){const secondsPerBeat=60.0/(parseInt(bpm)||120);const pitchMin=36;const pitchMax=84;midiNotes.forEach(note=>{const noteStartSec=(note.start_beat||0)*secondsPerBeat;const noteDurSec=Math.max(0.02,(note.duration_beats||0.25)*secondsPerBeat);const noteStartLocal=(midi.startTime+noteStartSec)*zoom-scrollLeft;const nw=noteDurSec*zoom;if(noteStartLocal+nwmidiStartLocal+midiWidth)return;const pitchFrac=Math.max(0,Math.min(1,(note.pitch-pitchMin)/(pitchMax-pitchMin)));const ny=18+(1.0-pitchFrac)*(height-26);const nh=Math.max(6,(height-26)/(pitchMax-pitchMin)*4);ctx.fillStyle=isRecordingItem?'#10b981':'#a78bfa';ctx.fillRect(Math.max(noteStartLocal,midiStartLocal+2),ny,Math.max(2,nw),nh);});}});// Selection highlight - local selection on this track if(selectionMode==='local'&&localSelectionTrackId===track.id&&localSelLeft!==null&&localSelRight!==null&&localSelRight>localSelLeft){const hlLeftLocal=localSelLeft*zoom-scrollLeft;const hlWidth=(localSelRight-localSelLeft)*zoom;ctx.fillStyle='rgba(245, 158, 11, 0.15)';ctx.fillRect(hlLeftLocal,0,hlWidth,height);ctx.strokeStyle='#f59e0b';ctx.lineWidth=1;ctx.strokeRect(hlLeftLocal,0,hlWidth,height);}},[track,zoom,timelineWidth,viewportWidth,isSelected,markers,selectionMode,localSelectionTrackId,localSelLeft,localSelRight,snapValue,bpm,scrollLeft,recordingState,recTempMidiNotes,recStartTimelineTime,canvasRedrawCount,currentTime]);return/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{key:"virtual-spacer",style:{width:`${timelineWidth}px`,height:'1px',pointerEvents:'none'}}),/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,style:{position:'sticky',left:0,imageRendering:'pixelated'},className:"cursor-crosshair",onMouseMove:e=>{if(!canvasRef.current)return;const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=x/zoom;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];// 1. Shift+Drag (TOP PRIORITY): Range selection on track waveform if(e.shiftKey&&e.buttons>0){e.preventDefault();e.stopPropagation();const currentAnchor=getLocalAnchor?getLocalAnchor():null;const anchor=currentAnchor!==null&¤tAnchor!==undefined?currentAnchor:localSelectionStart!==null?localSelectionStart:currentTime;const selS=Math.min(anchor,time);const selE=Math.max(anchor,time);if(onSetSelectionMode)onSetSelectionMode('local');if(onSetLocalSelectionTrackId)onSetLocalSelectionTrackId(track.id);if(onSetLocalSelectionStart)onSetLocalSelectionStart(selS);if(onSetLocalSelectionEnd)onSetLocalSelectionEnd(selE);if(onSetSelectionStart)onSetSelectionStart(selS);if(onSetSelectionEnd)onSetSelectionEnd(selE);if(onSetCurrentTime)onSetCurrentTime(time);if(onSelectTrack)onSelectTrack(track.id);return;}// Check if hovering near local selection boundaries of this track @@ -126,9 +129,9 @@ const canvasRef=React.useRef(null);const ccCanvasRef=React.useRef(null);const gr const KeybedPixelHeight=(128-PITCH_START)*NoteHeight;const pixelsPerBeat=rollZoom;const timeSigNum=4;const totalBeats=Math.max((st.duration||4)*timeSigNum,64);// at least 64 beats (16 bars) for scrolling 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);const undoStackRef=React.useRef([]);const redoStackRef=React.useRef([]);const notesBeforeDragRef=React.useRef(null);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);}};},[]);// Ctrl+Z undo / Ctrl+Y redo -React.useEffect(()=>{const handleKeyDown=e=>{if(e.ctrlKey&&e.key==='z'&&!e.shiftKey){e.preventDefault();if(undoStackRef.current.length===0){showToast('Không còn hành động để hoàn tác','info');return;}redoStackRef.current.push(JSON.parse(JSON.stringify(notes)));const prevNotes=undoStackRef.current.pop();setNotes(prevNotes);showToast('Đã hoàn tác','info');}else if(e.ctrlKey&&e.key==='y'||e.ctrlKey&&e.shiftKey&&e.key==='z'){e.preventDefault();if(redoStackRef.current.length===0){showToast('Không còn hành động để làm lại','info');return;}undoStackRef.current.push(JSON.parse(JSON.stringify(notes)));const nextNotes=redoStackRef.current.pop();setNotes(nextNotes);showToast('Đã làm lại','info');}};window.addEventListener('keydown',handleKeyDown);return()=>window.removeEventListener('keydown',handleKeyDown);},[notes,showToast]);// Shift + Scroll event listener to adjust velocity +const[hoveredResizeIdx,setHoveredResizeIdx]=React.useState(-1);// Undo/redo stacks +const undoStackRef=React.useRef([]);const redoStackRef=React.useRef([]);const notesBeforeDragRef=React.useRef(null);const pushToUndo=React.useCallback(prevNotes=>{undoStackRef.current.push(JSON.parse(JSON.stringify(prevNotes)));redoStackRef.current=[];if(undoStackRef.current.length>50)undoStackRef.current.shift();},[]);const handleUndo=React.useCallback(()=>{const prev=undoStackRef.current.pop();if(!prev)return;redoStackRef.current.push(JSON.parse(JSON.stringify(notes)));setNotes(prev);setSelectedNoteIds([]);},[notes]);const handleRedo=React.useCallback(()=>{const next=redoStackRef.current.pop();if(!next)return;undoStackRef.current.push(JSON.parse(JSON.stringify(notes)));setNotes(next);setSelectedNoteIds([]);},[notes]);React.useEffect(()=>{const handler=e=>{if((e.ctrlKey||e.metaKey)&&e.key==='z'&&!e.shiftKey){e.preventDefault();handleUndo();}else if((e.ctrlKey||e.metaKey)&&(e.key==='y'||e.key==='z'&&e.shiftKey)){e.preventDefault();handleRedo();}};window.addEventListener('keydown',handler);return()=>window.removeEventListener('keydown',handler);},[handleUndo,handleRedo]);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);}};},[]);// 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));if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(n.pitch,newVel*127,300,ctx.currentTime,st.instrumentProgram,null);}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 @@ -137,16 +140,20 @@ notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat;const y=(127-note.pit 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([]);}// Draw playhead -if(st.currentTime!==undefined&&st.currentTime!==null&&st.currentTime>=0){const phBeat=st.currentTime/(60.0/(parseInt(bpm)||120));const phX=phBeat*pixelsPerBeat;if(phX>=0&&phX<=drawWidth){ctx.strokeStyle='#f59e0b';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(phX,0);ctx.lineTo(phX,(128-PITCH_START)*NoteHeight);ctx.stroke();}}},[notes,snapVal,rollZoom,selectedNoteIds,selectionMarquee,st.currentTime,bpm]);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(()=>{const scrollToC3=()=>{if(gridScrollRef.current){const ch=gridScrollRef.current.clientHeight||400;gridScrollRef.current.scrollTop=Math.max(0,(127-48)*NoteHeight+NoteHeight-ch);}};scrollToC3();const timer=setTimeout(scrollToC3,100);return()=>clearTimeout(timer);},[]);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);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));// 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 +if(st.currentTime!==undefined&&st.currentTime!==null&&st.currentTime>=0){const phBeat=st.currentTime/(60.0/(parseInt(bpm)||120));const phX=phBeat*pixelsPerBeat;if(phX>=0&&phX<=drawWidth){ctx.strokeStyle='#f59e0b';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(phX,0);ctx.lineTo(phX,(128-PITCH_START)*NoteHeight);ctx.stroke();}}},[notes,snapVal,rollZoom,selectedNoteIds,selectionMarquee,st.currentTime,bpm]);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(()=>{const scrollToC3=()=>{if(gridScrollRef.current){const ch=gridScrollRef.current.clientHeight||400;gridScrollRef.current.scrollTop=Math.max(0,(127-48)*NoteHeight+NoteHeight-ch);}};scrollToC3();const timer=setTimeout(scrollToC3,100);return()=>clearTimeout(timer);},[]);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 // Check if clicking on an existing note const clickedNoteIdx=notes.findIndex(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat0?selectedNoteIds:[clickedNote.id];const notesToDuplicate=notes.filter(n=>idsToDuplicate.includes(n.id));const clones=notesToDuplicate.map(n=>({...n,id:'note_'+Date.now()+Math.random().toString(36).substr(2,5)}));setNotes(prev=>[...prev,...clones]);setSelectedNoteIds(clones.map(n=>n.id));const selectedNotesOffset=clones.map(n=>({id:n.id,originalStartBeat:n.start_beat,originalPitch:n.pitch}));setDraggedNote({mode:'move',idx:notes.length,startOffsetBeat:beat-clones[0].start_beat,startOffsetPitch:pitch-clones[0].pitch,selectedNotesOffset:selectedNotesOffset});}else{setSelectedNoteIds([]);setSelectionMarquee({startBeat:beat,startPitch:pitch,currentBeat:beat,currentPitch:pitch});}return;}// Hovered resize edge -if(hoveredResizeIdx!==-1){const allSelectedOffsets=notes.filter(n=>selectedNoteIds.includes(n.id)).map(n=>({id:n.id,originalStartBeat:n.start_beat,originalDuration:n.duration_beats}));setDraggedNote({mode:'resize',idx:hoveredResizeIdx,originalStart:notes[hoveredResizeIdx].start_beat,originalEndBeat:notes[hoveredResizeIdx].start_beat+notes[hoveredResizeIdx].duration_beats,selectedNotesOffsets:allSelectedOffsets,firstStartBeat:allSelectedOffsets.length>0?Math.min(...allSelectedOffsets.map(o=>o.originalStartBeat)):notes[hoveredResizeIdx].start_beat});return;}if(clickedNoteIdx!==-1){// Click on existing note: drag-move -const clickedNote=notes[clickedNoteIdx];const nextSelectedIds=!selectedNoteIds.includes(clickedNote.id)?e.shiftKey?[...selectedNoteIds,clickedNote.id]:[clickedNote.id]:selectedNoteIds;if(!selectedNoteIds.includes(clickedNote.id)){if(e.shiftKey){setSelectedNoteIds(prev=>[...prev,clickedNote.id]);}else{setSelectedNoteIds([clickedNote.id]);}}const selectedNotesOffset=notes.filter(n=>nextSelectedIds.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{// Click on empty space: DRAW a new note starting from click position -const start=getSnapBeat(beat,snapVal);const initialDur=getSnapDuration(snapVal);const noteId='note_'+Date.now()+Math.random().toString(36).substr(2,5);const newNote={id:noteId,pitch:pitch,start_beat:start,duration_beats:initialDur,velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds([noteId]);setDraggedNote({mode:'draw',idx:-1,startOffsetBeat:start,startOffsetPitch:pitch,drawNoteId:noteId,drawDuration:initialDur,visitedPitches:[pitch],brushNotes:[noteId]});// Play the note with SoundFont -if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(pitch,0.8,300,ctx.currentTime,undefined,null);}}};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==='draw'){if(!draggedNote.visitedPitches){const rawDur=beat-draggedNote.startOffsetBeat;const newDur=getSnapBeat(Math.max(0.125,rawDur),snapVal);setNotes(prev=>prev.map(n=>{if(n.id!==draggedNote.drawNoteId)return n;return{...n,duration_beats:newDur};}));}else{const lastPitch=draggedNote.visitedPitches[draggedNote.visitedPitches.length-1];if(pitch!==lastPitch&&!draggedNote.visitedPitches.includes(pitch)){const newPitches=[...draggedNote.visitedPitches,pitch];const totalSpan=beat-draggedNote.startOffsetBeat;const eachDur=Math.max(0.125,totalSpan/newPitches.length);let currentStart=draggedNote.startOffsetBeat;const newBrushNotes=[];const newNotes=newPitches.map(p=>{const nid='note_'+Date.now()+Math.random().toString(36).substr(2,5);newBrushNotes.push(nid);const result={id:nid,pitch:p,start_beat:getSnapBeat(currentStart,snapVal),duration_beats:getSnapBeat(eachDur,snapVal),velocity:0.8,pan:0.0};currentStart+=eachDur;return result;});setNotes(prev=>[...prev.filter(n=>!draggedNote.brushNotes||!draggedNote.brushNotes.includes(n.id)),...newNotes]);setSelectedNoteIds(newBrushNotes);setDraggedNote(prev=>({...prev,visitedPitches:newPitches,brushNotes:newBrushNotes}));}}return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapVal);if(e.altKey&&draggedNote.selectedNotesOffsets&&draggedNote.selectedNotesOffsets.length>0){const newDraggedEndBeat=draggedNote.originalStart+newDuration;const firstStartBeat=draggedNote.firstStartBeat;const originalEndBeat=draggedNote.originalEndBeat;const scaleFactor=Math.max(0.01,(newDraggedEndBeat-firstStartBeat)/(originalEndBeat-firstStartBeat));setNotes(prev=>prev.map(n=>{const offset=draggedNote.selectedNotesOffsets.find(o=>o.id===n.id);if(!offset)return n;if(offset.originalStartBeat>originalEndBeat)return n;return{...n,start_beat:getSnapBeat(firstStartBeat+(offset.originalStartBeat-firstStartBeat)*scaleFactor,snapVal),duration_beats:getSnapBeat(Math.max(0.125,offset.originalDuration*scaleFactor),snapVal)};}));}else{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=()=>{if(notesBeforeDragRef.current){const beforeStr=JSON.stringify(notesBeforeDragRef.current);const afterStr=JSON.stringify(notes);if(beforeStr!==afterStr){undoStackRef.current.push(JSON.parse(beforeStr));if(undoStackRef.current.length>20)undoStackRef.current.shift();redoStackRef.current=[];}notesBeforeDragRef.current=null;}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>=PITCH_START;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 cursor-pointer ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900 hover:bg-zinc-800':'bg-white text-zinc-800 border-r border-zinc-400 hover:bg-amber-100'}`,onMouseDown:e=>{e.stopPropagation();try{if(window.SonicSF){window.SonicSF.playNote(pitch,100,500,undefined,st.instrumentProgram,null);}}catch(err){console.error('playNote error:',err);}}},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 handleKeybedScroll=e=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=e.currentTarget.scrollTop;}};const renderBarLabels=()=>{const labels=[];const barsCount=Math.ceil(totalBeats/4);for(let bar=0;bar{e.stopPropagation();const barTime=bar*4*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:barTime}:s));}},`Bar ${bar}`));}return labels;};const beatSec=60.0/(parseInt(bpm)||120);const playHeadX=(st.currentTime||0)/beatSec*pixelsPerBeat;return React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col"},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 ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>onSaveNotes(st.id,st.trackId,st.target_id,notes),className:"px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},/*#__PURE__*/React.createElement("i",{"data-lucide":"save",className:"w-3 h-3"}),"Lưu"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng"))),/*#__PURE__*/React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),/*#__PURE__*/React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden",onMouseDown:e=>{const rect=e.currentTarget.getBoundingClientRect();const x=e.clientX-rect.left+e.currentTarget.scrollLeft;const clickBeat=x/pixelsPerBeat;const clickTime=clickBeat*beatSec;if(clickTime>=0){setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:clickTime}:s));}}},/*#__PURE__*/React.createElement("div",{style:{width:`${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,onScroll:handleKeybedScroll,className:"w-[60px] overflow-y-auto 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-PITCH_START)*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:`${drawWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,className:"absolute inset-0 cursor-ns-resize"})))));};const serializeTracksList=(tracksList,secondsPerBar)=>{return(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${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,instrument_id:t.instrumentId||null,instrument_program:t.instrumentProgram!==undefined?t.instrumentProgram:null,instrument_name:t.instrumentName||null,items:items};});};const deserializeTracksList=(schemaTracks,secondsPerBar,sectionStore)=>{return(schemaTracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};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||[]).map(n=>({id:n.id,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(item.type==="SECTION_ITEM"){const src=item.source_data||{};const secId=src.referenced_section_id;const secContainer=sectionStore?sectionStore[secId]:null;sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:secId,tracks:secContainer?deserializeTracksList(secContainer.tracks,secondsPerBar,sectionStore):null});}});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,instrumentId:t.instrument_id||null,instrumentProgram:t.instrument_program!==null?t.instrument_program:undefined,instrumentName:t.instrument_name||null};});};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=serializeTracksList(tracksList,secondsPerBar);const sectionStore={};// 1. Populate from sessionTabsList (open tabs) +if(clickedNoteIdx!==-1&&!e.ctrlKey&&!e.shiftKey&&!e.altKey){if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(notes[clickedNoteIdx].pitch,100,300,ctx.currentTime,st.instrumentProgram,null);}}// Ctrl+click: duplicate or selection +if(e.ctrlKey&&!e.altKey){if(clickedNoteIdx!==-1){pushToUndo(notes);const clickedNote=notes[clickedNoteIdx];// Duplicate: clone all selected notes + clicked note +const idsToClone=[...new Set([...selectedNoteIds,clickedNote.id])];const clones=notes.filter(n=>idsToClone.includes(n.id)).map(n=>({...JSON.parse(JSON.stringify(n)),id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)}));setNotes(prev=>[...prev,...clones]);const cloneIds=clones.map(c=>c.id);setSelectedNoteIds(cloneIds);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const cloneOffsets=clones.map(n=>({id:n.id,originalStartBeat:n.start_beat,originalPitch:n.pitch}));setDraggedNote({mode:'move',idx:-1,startOffsetBeat:beat,startOffsetPitch:pitch,selectedNotesOffset:cloneOffsets});}else{// Ctrl+click on empty space: start selection marquee +setSelectedNoteIds([]);setSelectionMarquee({startBeat:beat,startPitch:pitch,currentBeat:beat,currentPitch:pitch});}return;}// Hovered resize edge (Alt+resize for scaling) +if(hoveredResizeIdx!==-1&&e.altKey){pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const allSelected=[...new Set(selectedNoteIds.length>0?selectedNoteIds:[notes[hoveredResizeIdx].id])];const selectedNotes=notes.filter(n=>allSelected.includes(n.id));const firstStart=Math.min(...selectedNotes.map(n=>n.start_beat));const draggedNote=notes[hoveredResizeIdx];setDraggedNote({mode:'scale',idx:hoveredResizeIdx,originalEnd:draggedNote.start_beat+draggedNote.duration_beats,firstStart:firstStart,selectedNoteIds:allSelected});return;}// Hovered resize edge (normal resize) +if(hoveredResizeIdx!==-1){pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));setDraggedNote({mode:'resize',idx:hoveredResizeIdx,originalStart:notes[hoveredResizeIdx].start_beat});return;}if(clickedNoteIdx!==-1){// Click on existing note: drag-move +const clickedNote=notes[clickedNoteIdx];let nextSelectedIds;if(!selectedNoteIds.includes(clickedNote.id)){if(e.shiftKey){nextSelectedIds=[...selectedNoteIds,clickedNote.id];setSelectedNoteIds(nextSelectedIds);}else{nextSelectedIds=[clickedNote.id];setSelectedNoteIds(nextSelectedIds);}}else{nextSelectedIds=selectedNoteIds;}pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const selectedNotesOffset=notes.filter(n=>nextSelectedIds.includes(n.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{// Click on empty space: DRAW a new note (brush mode with visitedPitches) +pushToUndo(notes);const start=getSnapBeat(beat,snapVal);const initialDur=getSnapDuration(snapVal);const noteId='note_'+Date.now()+Math.random().toString(36).substr(2,5);const newNote={id:noteId,pitch:pitch,start_beat:start,duration_beats:initialDur,velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds([noteId]);setDraggedNote({mode:'draw',idx:-1,startOffsetBeat:start,startOffsetPitch:pitch,drawNoteId:noteId,drawDuration:initialDur,visitedPitches:[pitch],initialBeat:start,initialPitch:pitch});// Play the note with SoundFont +if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(pitch,0.8,300,ctx.currentTime,undefined,null);}}};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==='draw'){const rawDur=beat-draggedNote.startOffsetBeat;const newDur=getSnapBeat(Math.max(0.125,rawDur),snapVal);setNotes(prev=>prev.map(n=>{if(n.id!==draggedNote.drawNoteId)return n;return{...n,duration_beats:newDur};}));// Brush: track visited pitches and create evenly-spaced notes +const visited=draggedNote.visitedPitches||[];if(!visited.includes(pitch)){const newPitches=[...visited,pitch];const totalSpan=Math.max(0.125,beat-draggedNote.initialBeat);const perNoteDur=totalSpan/newPitches.length;const brushIds=draggedNote.brushIds||[];setNotes(prev=>{const cleaned=prev.filter(n=>!brushIds.includes(n.id));const brushNotes=newPitches.map((p,i)=>({id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)+'_'+i,pitch:p,start_beat:draggedNote.initialBeat+i*perNoteDur,duration_beats:perNoteDur*0.9,velocity:0.8,pan:0.0}));const newBrushIds=brushNotes.map(bn=>bn.id);setSelectedNoteIds(newBrushIds);draggedNote.brushIds=newBrushIds;draggedNote.visitedPitches=newPitches;return[...cleaned,...brushNotes];});}return;}if(draggedNote.mode==='scale'){const newEnd=getSnapBeat(Math.max(draggedNote.firstStart+0.125,beat),snapVal);const scaleFactor=(newEnd-draggedNote.firstStart)/(draggedNote.originalEnd-draggedNote.firstStart);const ids=draggedNote.selectedNoteIds||[];const firstStart=draggedNote.firstStart;setNotes(prev=>prev.map(n=>{if(!ids.includes(n.id))return n;const relStart=n.start_beat-firstStart;const relEnd=relStart+n.duration_beats;return{...n,start_beat:firstStart+relStart*scaleFactor,duration_beats:Math.max(0.125,relEnd*scaleFactor-relStart*scaleFactor)};}));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>=PITCH_START;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 cursor-pointer ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900 hover:bg-zinc-800':'bg-white text-zinc-800 border-r border-zinc-400 hover:bg-amber-100'}`,onMouseDown:e=>{e.stopPropagation();try{if(window.SonicSF){window.SonicSF.playNote(pitch,100,500,undefined,st.instrumentProgram,null);}}catch(err){console.error('playNote error:',err);}}},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 handleKeybedScroll=e=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=e.currentTarget.scrollTop;}};const renderBarLabels=()=>{const labels=[];const barsCount=Math.ceil(totalBeats/4);for(let bar=0;bar{e.stopPropagation();const barTime=bar*4*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:barTime}:s));}},`Bar ${bar}`));}return labels;};const beatSec=60.0/(parseInt(bpm)||120);const playHeadX=(st.currentTime||0)/beatSec*pixelsPerBeat;return React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col"},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 ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>onSaveNotes(st.id,st.trackId,st.target_id,notes),className:"px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},/*#__PURE__*/React.createElement("i",{"data-lucide":"save",className:"w-3 h-3"}),"Lưu"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng"))),/*#__PURE__*/React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),/*#__PURE__*/React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden",onMouseDown:e=>{const rect=e.currentTarget.getBoundingClientRect();const x=e.clientX-rect.left+e.currentTarget.scrollLeft;const clickBeat=x/pixelsPerBeat;const clickTime=clickBeat*beatSec;if(clickTime>=0){setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:clickTime}:s));}}},/*#__PURE__*/React.createElement("div",{style:{width:`${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,onScroll:handleKeybedScroll,className:"w-[60px] overflow-y-auto 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-PITCH_START)*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:`${drawWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,className:"absolute inset-0 cursor-ns-resize"})))));};const serializeTracksList=(tracksList,secondsPerBar)=>{return(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${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,instrument_id:t.instrumentId||null,instrument_program:t.instrumentProgram!==undefined?t.instrumentProgram:null,instrument_name:t.instrumentName||null,items:items};});};const deserializeTracksList=(schemaTracks,secondsPerBar,sectionStore)=>{return(schemaTracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};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||[]).map(n=>({id:n.id,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(item.type==="SECTION_ITEM"){const src=item.source_data||{};const secId=src.referenced_section_id;const secContainer=sectionStore?sectionStore[secId]:null;sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:secId,tracks:secContainer?deserializeTracksList(secContainer.tracks,secondsPerBar,sectionStore):null});}});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,instrumentId:t.instrument_id||null,instrumentProgram:t.instrument_program!==null?t.instrument_program:undefined,instrumentName:t.instrument_name||null};});};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=serializeTracksList(tracksList,secondsPerBar);const sectionStore={};// 1. Populate from sessionTabsList (open tabs) (sessionTabsList||[]).forEach(st=>{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:serializeTracksList(st.tracks,secondsPerBar),color:st.color||null};});// 2. Also populate from tracksList (closed tabs saved inside Section items) const scanForSections=tracks=>{(tracks||[]).forEach(t=>{if(t.sections){t.sections.forEach(s=>{const secId=s.sectionId||s.id;if(s.tracks&&!sectionStore[secId]){sectionStore[secId]={id:secId,name:s.name,is_root:false,length_bars:s.tracks[0]?.length_bars||16.0,auto_compute_length:true,tracks:serializeTracksList(s.tracks,secondsPerBar),color:s.color||null};}if(s.tracks){scanForSections(s.tracks);}});}});};scanForSections(tracksList);const subTabs=(subTabsList||[]).map(st=>{return{id:st.id,label:st.label,type:st.type,track_id:st.trackId,target_id:st.target_id,parent_tab_id:st.parent_tab_id,notes:st.notes||[],duration:st.duration||4,instrument_program:st.instrumentProgram,instrument_name:st.instrumentName,current_time:st.currentTime||0,color:st.color||null};});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},sub_tabs:subTabs,section_store:sectionStore};};const deserializeProjectFromSchema=schemaObj=>{const bpmVal=schemaObj.metadata?schemaObj.metadata.bpm:120;const secondsPerBar=60.0/bpmVal*4;const sectionStore=schemaObj.section_store||{};const restoredTracks=deserializeTracksList(schemaObj.main_session.tracks,secondsPerBar,sectionStore);const restoredSessionTabs=[];Object.keys(sectionStore).forEach(secId=>{const secContainer=sectionStore[secId];const secTracks=deserializeTracksList(secContainer.tracks,secondsPerBar,sectionStore);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!==undefined?secContainer.auto_compute_length:true,color:secContainer.color||null});});const restoredSubTabs=(schemaObj.sub_tabs||[]).map(st=>{return{id:st.id,label:st.label,type:st.type,trackId:st.track_id,target_id:st.target_id,parent_tab_id:st.parent_tab_id,notes:st.notes||[],duration:st.duration||4,instrumentProgram:st.instrument_program,instrumentName:st.instrument_name,currentTime:st.current_time||0,color:st.color||null};});return{bpm:bpmVal,tracks:restoredTracks,sessionTabs:restoredSessionTabs,subTabs:restoredSubTabs};};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 } @@ -154,8 +161,8 @@ const[hoveredTrackId,setHoveredTrackId]=useState(null);const openPanel=id=>{if(i setSynthCategory('soundfont');setSelectedSoundFontId(track.instrumentId);setSfPresets(null);const sfIdParam=track.instrumentId.replace('sf_','');window.SonicAPI.listSoundfontInstruments(sfIdParam).then(data=>setSfPresets(data.presets||[])).catch(()=>setSfPresets([]));}else{// Reset synth state and always reload plugin data setSynthCategory(null);setSelectedSoundFontId(null);window.SonicAPI.listPlugins().then(data=>setInstrumentSelectorData(data)).catch(e=>console.error('listPlugins failed:',e));}};const closeInstrumentSelector=()=>{setInstrumentSelectorTrackId(null);setSynthCategory(null);setSelectedSoundFontId(null);};const[synthCategory,setSynthCategory]=useState(null);// 'vst' | 'soundfont' const[selectedSoundFontId,setSelectedSoundFontId]=useState(null);const[sfPresets,setSfPresets]=useState(null);// presets from SoundFont -const[instrumentDropdownTrackId,setInstrumentDropdownTrackId]=useState(null);const[instrumentDropdownBtnRect,setInstrumentDropdownBtnRect]=useState(null);const[instrumentSearchQuery,setInstrumentSearchQuery]=useState('');const filteredInstruments=useMemo(()=>{if(!instrumentSelectorData||!instrumentSearchQuery)return{soundfonts:instrumentSelectorData?.soundfonts||[],vst:instrumentSelectorData?.vst_instruments||[]};const q=instrumentSearchQuery.toLowerCase();return{soundfonts:(instrumentSelectorData.soundfonts||[]).filter(sf=>(sf.display||sf.name||sf.id).toLowerCase().includes(q)),vst:(instrumentSelectorData.vst_instruments||[]).filter(v=>(v.name||v.id).toLowerCase().includes(q))};},[instrumentSearchQuery,instrumentSelectorData]);useEffect(()=>{if(!instrumentSelectorData){window.SonicAPI.listPlugins().then(data=>setInstrumentSelectorData(data)).catch(()=>{});}},[]);useEffect(()=>{if(!instrumentDropdownTrackId)return;const handler=e=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setInstrumentSearchQuery('');};document.addEventListener('click',handler);return()=>document.removeEventListener('click',handler);},[instrumentDropdownTrackId]);const GM_INSTRUMENTS=["Acoustic Grand Piano","Bright Acoustic Piano","Electric Grand Piano","Honky-tonk Piano","Electric Piano 1","Electric Piano 2","Harpsichord","Clavi","Celesta","Glockenspiel","Music Box","Vibraphone","Marimba","Xylophone","Tubular Bells","Dulcimer","Drawbar Organ","Percussive Organ","Rock Organ","Church Organ","Reed Organ","Accordion","Harmonica","Tango Accordion","Acoustic Guitar (nylon)","Acoustic Guitar (steel)","Electric Guitar (jazz)","Electric Guitar (clean)","Electric Guitar (muted)","Overdriven Guitar","Distortion Guitar","Guitar harmonics","Acoustic Bass","Electric Bass (finger)","Electric Bass (pick)","Fretless Bass","Slap Bass 1","Slap Bass 2","Synth Bass 1","Synth Bass 2","Violin","Viola","Cello","Contrabass","Tremolo Strings","Pizzicato Strings","Orchestral Harp","Timpani","String Ensemble 1","String Ensemble 2","Synth Strings 1","Synth Strings 2","Choir Aahs","Voice Oohs","Synth Voice","Orchestra Hit","Trumpet","Trombone","Tuba","Muted Trumpet","French Horn","Brass Section","Synth Brass 1","Synth Brass 2","Soprano Sax","Alto Sax","Tenor Sax","Baritone Sax","Oboe","English Horn","Bassoon","Clarinet","Piccolo","Flute","Recorder","Pan Flute","Blown Bottle","Shakuhachi","Whistle","Ocarina","Lead 1 (square)","Lead 2 (sawtooth)","Lead 3 (calliope)","Lead 4 (chiff)","Lead 5 (charang)","Lead 6 (voice)","Lead 7 (fifths)","Lead 8 (bass+lead)","Pad 1 (new age)","Pad 2 (warm)","Pad 3 (polysynth)","Pad 4 (choir)","Pad 5 (bowed)","Pad 6 (metallic)","Pad 7 (halo)","Pad 8 (sweep)","FX 1 (rain)","FX 2 (soundtrack)","FX 3 (crystal)","FX 4 (atmosphere)","FX 5 (brightness)","FX 6 (goblins)","FX 7 (echoes)","FX 8 (sci-fi)","Sitar","Banjo","Shamisen","Koto","Kalimba","Bag pipe","Fiddle","Shanai","Tinkle Bell","Agogo","Steel Drums","Woodblock","Taiko Drum","Melodic Tom","Synth Drum","Reverse Cymbal","Guitar Fret Noise","Breath Noise","Seashore","Bird Tweet","Telephone Ring","Helicopter","Applause","Gunshot"];const setTrackInstrumentWithProgram=(trackId,instrumentId,programNumber,displayName)=>{updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,instrumentId,instrumentProgram:programNumber!==undefined?programNumber:undefined,instrumentName:displayName};}));setInstrumentSelectorTrackId(null);setSynthCategory(null);setSelectedSoundFontId(null);setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setTimeout(()=>lucide.createIcons(),50);};const setTrackInstrument=(trackId,instrumentId,displayName)=>{if(instrumentId&&instrumentId.startsWith('sf_')){// Set instrument on track immediately so Synth button shows the name -updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,instrumentId,instrumentProgram:undefined,instrumentName:displayName};}));setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setSelectedSoundFontId(instrumentId);setSynthCategory('soundfont');setInstrumentSelectorTrackId(trackId);setSfPresets(null);// Fetch actual presets from the SoundFont +const[instrumentDropdownTrackId,setInstrumentDropdownTrackId]=useState(null);const[instrumentDropdownBtnRect,setInstrumentDropdownBtnRect]=useState(null);const[instrumentSearchQuery,setInstrumentSearchQuery]=useState('');const filteredInstruments=useMemo(()=>{if(!instrumentSelectorData||!instrumentSearchQuery)return{soundfonts:instrumentSelectorData?.soundfonts||[],vst:instrumentSelectorData?.vst_instruments||[]};const q=instrumentSearchQuery.toLowerCase();return{soundfonts:(instrumentSelectorData.soundfonts||[]).filter(sf=>(sf.display||sf.name||sf.id).toLowerCase().includes(q)),vst:(instrumentSelectorData.vst_instruments||[]).filter(v=>(v.name||v.id).toLowerCase().includes(q))};},[instrumentSearchQuery,instrumentSelectorData]);useEffect(()=>{if(!instrumentSelectorData){window.SonicAPI.listPlugins().then(data=>setInstrumentSelectorData(data)).catch(()=>{});}},[]);useEffect(()=>{if(!instrumentDropdownTrackId)return;const handler=e=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setInstrumentSearchQuery('');};document.addEventListener('click',handler);return()=>document.removeEventListener('click',handler);},[instrumentDropdownTrackId]);const GM_INSTRUMENTS=["Acoustic Grand Piano","Bright Acoustic Piano","Electric Grand Piano","Honky-tonk Piano","Electric Piano 1","Electric Piano 2","Harpsichord","Clavi","Celesta","Glockenspiel","Music Box","Vibraphone","Marimba","Xylophone","Tubular Bells","Dulcimer","Drawbar Organ","Percussive Organ","Rock Organ","Church Organ","Reed Organ","Accordion","Harmonica","Tango Accordion","Acoustic Guitar (nylon)","Acoustic Guitar (steel)","Electric Guitar (jazz)","Electric Guitar (clean)","Electric Guitar (muted)","Overdriven Guitar","Distortion Guitar","Guitar harmonics","Acoustic Bass","Electric Bass (finger)","Electric Bass (pick)","Fretless Bass","Slap Bass 1","Slap Bass 2","Synth Bass 1","Synth Bass 2","Violin","Viola","Cello","Contrabass","Tremolo Strings","Pizzicato Strings","Orchestral Harp","Timpani","String Ensemble 1","String Ensemble 2","Synth Strings 1","Synth Strings 2","Choir Aahs","Voice Oohs","Synth Voice","Orchestra Hit","Trumpet","Trombone","Tuba","Muted Trumpet","French Horn","Brass Section","Synth Brass 1","Synth Brass 2","Soprano Sax","Alto Sax","Tenor Sax","Baritone Sax","Oboe","English Horn","Bassoon","Clarinet","Piccolo","Flute","Recorder","Pan Flute","Blown Bottle","Shakuhachi","Whistle","Ocarina","Lead 1 (square)","Lead 2 (sawtooth)","Lead 3 (calliope)","Lead 4 (chiff)","Lead 5 (charang)","Lead 6 (voice)","Lead 7 (fifths)","Lead 8 (bass+lead)","Pad 1 (new age)","Pad 2 (warm)","Pad 3 (polysynth)","Pad 4 (choir)","Pad 5 (bowed)","Pad 6 (metallic)","Pad 7 (halo)","Pad 8 (sweep)","FX 1 (rain)","FX 2 (soundtrack)","FX 3 (crystal)","FX 4 (atmosphere)","FX 5 (brightness)","FX 6 (goblins)","FX 7 (echoes)","FX 8 (sci-fi)","Sitar","Banjo","Shamisen","Koto","Kalimba","Bag pipe","Fiddle","Shanai","Tinkle Bell","Agogo","Steel Drums","Woodblock","Taiko Drum","Melodic Tom","Synth Drum","Reverse Cymbal","Guitar Fret Noise","Breath Noise","Seashore","Bird Tweet","Telephone Ring","Helicopter","Applause","Gunshot"];const setTrackInstrumentWithProgram=(trackId,instrumentId,programNumber,displayName)=>{updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,instrumentId,instrumentProgram:programNumber!==undefined?programNumber:undefined,instrumentName:displayName};}));setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);setInstrumentSelectorTrackId(null);setSynthCategory(null);setSelectedSoundFontId(null);setTimeout(()=>lucide.createIcons(),50);};const setTrackInstrument=(trackId,instrumentId,displayName)=>{setInstrumentDropdownTrackId(null);setInstrumentDropdownBtnRect(null);if(instrumentId&&instrumentId.startsWith('sf_')){// Set instrument on track immediately so Synth button shows the name +updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,instrumentId,instrumentProgram:undefined,instrumentName:displayName};}));setSelectedSoundFontId(instrumentId);setSynthCategory('soundfont');setInstrumentSelectorTrackId(trackId);setSfPresets(null);// Fetch actual presets from the SoundFont const sfIdParam=instrumentId.replace('sf_','');window.SonicAPI.listSoundfontInstruments(sfIdParam).then(data=>setSfPresets(data.presets||[])).catch(e=>{console.error('listSoundfontInstruments failed:',e);setSfPresets([]);});}else{setTrackInstrumentWithProgram(trackId,instrumentId,undefined,displayName);}};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' const snapTime=(time,snapVal,bpmVal)=>{if(snapVal==='free')return time;const beatDuration=60/parseFloat(bpmVal||120);let divisor=1;if(snapVal==='1')divisor=1;else if(snapVal==='1/2')divisor=0.5;else if(snapVal==='1/4')divisor=0.25;else if(snapVal==='1/8')divisor=0.125;else if(snapVal==='1/16')divisor=0.0625;else if(snapVal==='1/32')divisor=0.03125;const gridSpacing=beatDuration*divisor;return Math.round(time/gridSpacing)*gridSpacing;};const snapValueRef=useRef(snapValue);snapValueRef.current=snapValue;const bpmRef=useRef(bpm);bpmRef.current=bpm;// BMP for Tempo Track - LOOP_EDITOR_2.md §6 @@ -184,7 +191,7 @@ const[isMandatoryLogin,setIsMandatoryLogin]=useState(false);const[profileModalOp useEffect(()=>{const serializeSafe=arr=>(arr||[]).map(t=>({id:t.id,name:t.name,startTime:t.startTime,height:t.height,volumeDb:t.volumeDb,pan:t.pan,muted:t.muted,solo:t.solo,color:t.color,markers:t.markers||[],serverFileId:t.serverFileId||null,channelInfo:t.channelInfo?{channels:t.channelInfo.channels,isStereo:t.channelInfo.isStereo,label:t.channelInfo.label}:null}));window.SonicStorage.scheduleTempAutoSave(()=>{return serializeProjectToSchema(currentProjectId||'temp_project',projectName||'Dự án tạm chưa lưu',bpm,tracks,subTabs,sessionTabs);});},[tracks,subTabs,sessionTabs]);// Lucide icons initialization useEffect(()=>{setTimeout(()=>{if(window.lucide){window.lucide.createIcons();}},50);},[activeTool,activeTab]);const timelineWrapperRef=useRef(null);const[timelineWrapperNode,setTimelineWrapperNode]=useState(null);const handleTimelineWrapperRef=useCallback(node=>{timelineWrapperRef.current=node;setTimelineWrapperNode(node);},[]);const tcpContainerRef=useRef(null);const[scrollLeft,setScrollLeft]=useState(0);const handleTimelineScroll=e=>{if(tcpContainerRef.current){tcpContainerRef.current.scrollTop=e.currentTarget.scrollTop;}setScrollLeft(e.currentTarget.scrollLeft);};const handleTCPScroll=e=>{if(timelineWrapperRef.current){timelineWrapperRef.current.scrollTop=e.currentTarget.scrollTop;}};const panelDropZoneRef=useRef(null);const startPanelDrag=(panelId,e)=>{panelDragRef.current={panelId,startX:e.clientX,startY:e.clientY};setPanelDropZone(null);setDragGhostPanel(panelId);setDragGhostPos({x:e.clientX-120,y:e.clientY-20});const onMove=ev=>{if(!panelDragRef.current||!workspaceRef.current)return;const rect=workspaceRef.current.getBoundingClientRect();const x=ev.clientX-rect.left;const y=ev.clientY-rect.top;const w=rect.width;const h=rect.height;const margin=60;let zone=null;if(x10)zone='left';else if(x>w-margin&&x10)zone='top';else if(y>h-margin&&y{if(panelDragRef.current){const pid=panelDragRef.current.panelId;const targetZone=panelDropZoneRef.current;if(targetZone&&targetZone!==panelPositions[pid]){setPanelPositions(prev=>({...prev,[pid]:targetZone}));}panelDragRef.current=null;panelDropZoneRef.current=null;setPanelDropZone(null);setDragGhostPos(null);setDragGhostPanel(null);}document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};// ── Right Sidebar Column Resizer ── const startColResize=e=>{e.preventDefault();const startX=e.clientX;const startWidth=rightSidebarWidth;const onMove=ev=>{const deltaX=startX-ev.clientX;const newWidth=Math.max(200,Math.min(600,startWidth+deltaX));setRightSidebarWidth(newWidth);};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};// ── TCP Resizer ── -const startTcpResize=e=>{e.preventDefault();const startX=e.clientX;const startW=tcpWidth;const onMove=ev=>{const deltaX=ev.clientX-startX;const newWidth=Math.max(280,Math.min(600,startW+deltaX));setTcpWidth(newWidth);};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};// ── Right Sidebar Row Resizer (Media Explorer / AI Panel) ── +const startTcpResize=e=>{e.preventDefault();const startX=e.clientX;const startWidth=tcpWidth;const onMove=ev=>{const deltaX=ev.clientX-startX;const newWidth=Math.max(280,Math.min(600,startWidth+deltaX));setTcpWidth(newWidth);};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};// ── Right Sidebar Row Resizer (Media Explorer / AI Panel) ── const startRowResize=e=>{e.preventDefault();const startY=e.clientY;const startHeight=mediaExplorerHeight;const sidebarEl=document.getElementById('right-sidebar');const sidebarHeight=sidebarEl?sidebarEl.getBoundingClientRect().height:400;const onMove=ev=>{const deltaY=startY-ev.clientY;const pct=(startHeight/100*sidebarHeight+deltaY)/sidebarHeight*100;const newPct=Math.max(20,Math.min(80,pct));setMediaExplorerHeight(newPct);};const onUp=()=>{document.removeEventListener('mousemove',onMove);document.removeEventListener('mouseup',onUp);};document.addEventListener('mousemove',onMove);document.addEventListener('mouseup',onUp);};const rulerRef=useRef(null);const activeSourcesRef=useRef([]);const activeTrackNodesRef=useRef({});// { [trackId]: { gainNode, pannerNode } } const startOffsetTimeRef=useRef(0);const startBufferOffsetRef=useRef(0);const startAudioTimeRef=useRef(0);const animationFrameIdRef=useRef(null);const toastTimeoutRef=useRef(null);const rulerDragStartRef=useRef(null);const rulerAnchorRef=useRef(null);const isDraggingRulerRef=useRef(false);const handlePlayPauseRef=useRef(null);const currentTimeRef=useRef(currentTime);currentTimeRef.current=currentTime;// ── Keyboard Shortcuts ── const handleUndoRef=useRef(handleUndo);const handleRedoRef=useRef(handleRedo);handleUndoRef.current=handleUndo;handleRedoRef.current=handleRedo;const selectedClipIdRef=useRef(null);selectedClipIdRef.current=selectedClipId;const activeTabRef=useRef(activeTab);activeTabRef.current=activeTab;const activePlaybackSpeedRef=useRef(1.0);const subTabsRef=useRef(subTabs);subTabsRef.current=subTabs;const subTabSelectedNodeTimeRef=useRef(null);subTabSelectedNodeTimeRef.current=subTabSelectedNodeTime;const handleSubTabNormalize=tabId=>{setSubTabs(prev=>prev.map(st=>{if(st.id!==tabId||!st.buffer)return st;const ctx=getAudioContext();const data=st.buffer.getChannelData(0);const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):0;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):st.buffer.duration;const startSample=Math.floor(left*st.buffer.sampleRate);const endSample=Math.floor(right*st.buffer.sampleRate);let maxVal=0;for(let i=startSample;imaxVal)maxVal=abs;}if(maxVal===0)return st;const scale=1.0/maxVal;const clonedBuffer=ctx.createBuffer(1,data.length,st.buffer.sampleRate);const clonedData=clonedBuffer.getChannelData(0);clonedData.set(data);for(let i=startSample;i{setSubTabs(prev=>prev.map(st=>{if(st.id!==tabId||!st.buffer)return st;const ctx=getAudioContext();const data=st.buffer.getChannelData(0);const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):0;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):st.buffer.duration;const startSample=Math.floor(left*st.buffer.sampleRate);const endSample=Math.floor(right*st.buffer.sampleRate);const scale=Math.pow(10,gainDb/20);const clonedBuffer=ctx.createBuffer(1,data.length,st.buffer.sampleRate);const clonedData=clonedBuffer.getChannelData(0);clonedData.set(data);for(let i=startSample;i{setSubTabs(prev=>prev.map(st=>{if(st.id!==tabId||!st.buffer)return st;const ctx=getAudioContext();const data=st.buffer.getChannelData(0);const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):0;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):st.buffer.duration;const startSample=Math.floor(left*st.buffer.sampleRate);const endSample=Math.floor(right*st.buffer.sampleRate);const durationSamples=endSample-startSample;if(durationSamples<=0)return st;const clonedBuffer=ctx.createBuffer(1,data.length,st.buffer.sampleRate);const clonedData=clonedBuffer.getChannelData(0);clonedData.set(data);if(type==='in'){for(let i=0;i{const st=subTabsRef.current.find(s=>s.id===tabId);if(!st||!st.buffer)return;const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):null;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):null;if(left===null||right===null||left===right){showToast('Vui lòng chọn vùng để Cut.','warning');return;}const ctx=getAudioContext();const sr=st.buffer.sampleRate;const data=st.buffer.getChannelData(0);const startSample=Math.floor(left*sr);const endSample=Math.floor(right*sr);const len=endSample-startSample;const cutBuffer=ctx.createBuffer(1,len,sr);cutBuffer.copyToChannel(data.subarray(startSample,endSample),0);clipboardRef.current={buffer:cutBuffer,name:'Subtab Clip'};const newBuffer=ctx.createBuffer(1,data.length-len,sr);const newData=newBuffer.getChannelData(0);let idx=0;for(let i=0;iprev.map(s=>s.id===tabId?{...s,buffer:newBuffer,currentTime:left,selectionStart:null,selectionEnd:null}:s));showToast('Đã Cut vùng chọn.','success');};const handleSubTabCopy=tabId=>{const st=subTabsRef.current.find(s=>s.id===tabId);if(!st||!st.buffer)return;const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):null;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):null;if(left===null||right===null||left===right){showToast('Vui lòng chọn vùng để Copy.','warning');return;}const ctx=getAudioContext();const sr=st.buffer.sampleRate;const data=st.buffer.getChannelData(0);const startSample=Math.floor(left*sr);const endSample=Math.floor(right*sr);const len=endSample-startSample;const copyBuffer=ctx.createBuffer(1,len,sr);copyBuffer.copyToChannel(data.subarray(startSample,endSample),0);clipboardRef.current={buffer:copyBuffer,name:'Subtab Clip',sampleRate:sr,channels:1,speed:1.0};showToast('Đã Copy vùng chọn.','success');};const handleSubTabPaste=tabId=>{const st=subTabsRef.current.find(s=>s.id===tabId);if(!st||!st.buffer)return;if(!clipboardRef.current||!clipboardRef.current.buffer){showToast('Clipboard trống.','warning');return;}const ctx=getAudioContext();const clipBuf=clipboardRef.current.buffer;const sr=st.buffer.sampleRate;const data=st.buffer.getChannelData(0);const insertTime=st.currentTime||0;const insertSample=Math.floor(insertTime*sr);const newBuffer=ctx.createBuffer(1,data.length+clipBuf.length,sr);const newData=newBuffer.getChannelData(0);let idx=0;for(let i=0;iprev.map(s=>s.id===tabId?{...s,buffer:newBuffer,currentTime:insertTime+clipBuf.duration,selectionStart:null,selectionEnd:null}:s));showToast('Đã dán dữ liệu âm thanh.','success');};const handleSubTabDelete=tabId=>{const st=subTabsRef.current.find(s=>s.id===tabId);if(!st||!st.buffer)return;const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):null;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):null;if(left===null||right===null||left===right){showToast('Vui lòng chọn vùng để Delete.','warning');return;}const ctx=getAudioContext();const sr=st.buffer.sampleRate;const data=st.buffer.getChannelData(0);const startSample=Math.floor(left*sr);const endSample=Math.floor(right*sr);const len=endSample-startSample;const newBuffer=ctx.createBuffer(1,data.length-len,sr);const newData=newBuffer.getChannelData(0);let idx=0;for(let i=0;iprev.map(s=>s.id===tabId?{...s,buffer:newBuffer,currentTime:left,selectionStart:null,selectionEnd:null}:s));showToast('Đã xóa vùng chọn.','success');};const handleSubTabLoop=(tabId,loopCount)=>{const st=subTabsRef.current.find(s=>s.id===tabId);if(!st||!st.buffer)return;const left=st.selectionStart!==null&&st.selectionEnd!==null?Math.min(st.selectionStart,st.selectionEnd):null;const right=st.selectionStart!==null&&st.selectionEnd!==null?Math.max(st.selectionStart,st.selectionEnd):null;if(left===null||right===null||left===right){showToast('Vui lòng chọn vùng để Loop.','warning');return;}const ctx=getAudioContext();const sr=st.buffer.sampleRate;const data=st.buffer.getChannelData(0);const startSample=Math.floor(left*sr);const endSample=Math.floor(right*sr);const len=endSample-startSample;// Loop payload N times @@ -194,9 +201,9 @@ 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 ctx=getAudioContext();const silentBuffer=ctx.createBuffer(1,128,ctx.sampleRate);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,buffer:silentBuffer,instrumentProgram:track.instrumentProgram,instrumentName:track.instrumentName,currentTime:0,isPlaying:false,selectionStart:null,selectionEnd:null,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,isDirty:true}:s));};const handleSaveMidiNotes=(tabId,trackId,midiItemId,updatedNotes)=>{const pianoRollTab=subTabs.find(s=>s.id===tabId);const parentTabId=pianoRollTab?pianoRollTab.parent_tab_id:null;if(parentTabId&&parentTabId.startsWith('session_')){setSessionTabs(prev=>prev.map(s=>{if(s.id!==parentTabId)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};})};}));}setSubTabs(prev=>prev.map(s=>s.id===tabId?{...s,isDirty:false}:s));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;const contentTracks=(tab.tracks||[]).filter(t=>t.clips&&t.clips.length>0||t.midiItems&&t.midiItems.length>0||t.instrumentId);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&&s.id!==tab.sectionId)return s;return{...s,name:tab.name,duration:durationSec,tracks:contentTracks};})};}));// Clear isDirty flag +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 ctx=getAudioContext();const silentBuffer=ctx.createBuffer(1,128,ctx.sampleRate);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,buffer:silentBuffer,instrumentProgram:track.instrumentProgram,instrumentName:track.instrumentName,currentTime:0,isPlaying:false,selectionStart:null,selectionEnd:null,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,isDirty:true}:s));};const handleSaveMidiNotes=(tabId,trackId,midiItemId,updatedNotes)=>{const pianoRollTab=subTabs.find(s=>s.id===tabId);const parentTabId=pianoRollTab?pianoRollTab.parent_tab_id:null;if(parentTabId&&parentTabId.startsWith('session_')){setSessionTabs(prev=>prev.map(s=>{if(s.id!==parentTabId)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};})};}));}setSubTabs(prev=>prev.map(s=>s.id===tabId?{...s,isDirty:false}:s));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;const contentTracks=tab.tracks?tab.tracks.filter(tr=>tr.clips?.length>0||tr.midiItems?.length>0):[];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&&s.id!==tab.sectionId)return s;return{...s,name:tab.name,duration:durationSec,tracks:contentTracks};})};}));// Clear isDirty flag setSessionTabs(prev=>prev.map(s=>s.id===tabId?{...s,isDirty:false}:s));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 "${section.name}" already open.`,'info');return;}const tabId='session_'+Date.now();const tabName=section.name||'Section';const clonedTracks=section.tracks?JSON.parse(JSON.stringify(section.tracks)):[{...tracks.find(tr=>tr.id===trackId),clips:[],sections:[],midiItems:[],markers:[],isArmed:false,monitoringEnabled:true,instrumentId:null,instrumentProgram:undefined,instrumentName:null}];setSessionTabs(prev=>[...prev,{id:tabId,name:tabName,sectionId:sectionId,tracks:clonedTracks,color:section.color||null}]);setActiveTab(tabId);};// ── Sub Tab: apply effects & merge back (LOOP_EDITOR_2.md §1.2) ── +const handleEditSectionInTab=(trackId,sectionId)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const section=(track.sections||[]).find(s=>s.id===sectionId);if(!section)return;const existing=sessionTabs.find(s=>s.sectionId===sectionId);if(existing){setActiveTab(existing.id);showToast(`Tab "${section.name}" already open.`,'info');return;}const tabId='session_'+Date.now();const tabName=section.name||'Section';const clonedTracks=section.tracks?JSON.parse(JSON.stringify(section.tracks)):tracks.filter(t=>t.id===trackId).map(t=>({...t,clips:[],sections:[],midiItems:[],markers:[],isArmed:false,monitoringEnabled:true,instrumentId:null,instrumentProgram:undefined,instrumentName:null}));setSessionTabs(prev=>[...prev,{id:tabId,name:tabName,sectionId:sectionId,tracks:clonedTracks,color:section.color||null}]);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 const fx=subTab.effects||{};const applyResample=(data,ratio)=>{const newLen=Math.round(data.length*ratio);const out=new Float32Array(newLen);for(let i=0;i0){const fadeSamples=Math.min(resultData.length,Math.floor(fx.fadeInMs/1000*sr));for(let i=0;it.isArmed);for(let track of armedTracks){const midiRec=activeMIDIRecordersRef.current[track.id];if(midiRec){const currentBeat=(audioCtx.currentTime-midiRec.recStartAudioTime-midiRec.latencyCompSec)/secondsPerBeat;const notes=[...midiRec.recordedNotes,...Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}))];combinedNotes=combinedNotes.concat(notes);}}if(combinedNotes.length>0||armedTracks.some(t=>activeMIDIRecordersRef.current[t.id])){setRecTempMidiNotes(combinedNotes);setCanvasRedrawCount(n=>n+1);}}}const isSubTab=subTabsRef.current.some(sub=>sub.id===activeTabRef.current);if(isSubTab){const st=subTabsRef.current.find(s=>s.id===activeTabRef.current);if(!st||!st.isPlaying||!st.buffer)return;const context=getAudioContext();const speedFactor=st.speed||1.0;const elapsed=context.currentTime-startAudioTimeRef.current;const wallTime=startOffsetTimeRef.current+elapsed;const bufferPos=startBufferOffsetRef.current+elapsed*speedFactor;// Loop sub-tab selection (bufferPos is buffer-time) if(st.selectionStart!==null&&st.selectionEnd!==null&&st.selectionStart!==st.selectionEnd){const start=Math.min(st.selectionStart,st.selectionEnd);const end=Math.max(st.selectionStart,st.selectionEnd);if(bufferPos>=end){stopAllPlayback();setSubTabs(prev=>prev.map(s=>s.id===activeTabRef.current?{...s,currentTime:wallTime,isPlaying:true}:s));startSubTabPlayback(st,wallTime);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}}const effectiveDuration=st.type==='PIANO_ROLL'?(()=>{const notes=st.notes||[];const bpmVal=parseInt(bpmRef?.current||bpm)||120;const beatSec=60.0/bpmVal;let maxEnd=0;notes.forEach(n=>{const end=(n.start_beat||0)+(n.duration_beats||1);if(end>maxEnd)maxEnd=end;});return maxEnd*beatSec+1.0;})():st.buffer.duration;if(bufferPos>=effectiveDuration){stopAllPlayback();if(isLoopingSelection){setSubTabs(prev=>prev.map(s=>s.id===activeTabRef.current?{...s,currentTime:0,isPlaying:true}:s));startSubTabPlayback(st,0);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);}else{setSubTabs(prev=>prev.map(s=>s.id===activeTabRef.current?{...s,currentTime:0,isPlaying:false}:s));}return;}setSubTabs(prev=>prev.map(s=>s.id===activeTabRef.current?{...s,currentTime:wallTime}:s));animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}if(!isPlaying)return;const context=getAudioContext();const elapsed=context.currentTime-startAudioTimeRef.current;const updatedTime=startOffsetTimeRef.current+elapsed;// Selection Loop - LOOP_MAKER.md + LOOP_EDITOR_2.md §4.2 // If selection cleared by user, play linearly (don't loop) -if(!selectionCleared&&isLoopingSelection&&selLeft!==null&&selRight!==null){if(selRight>selLeft&&updatedTime>=selRight){if(soloedTrackId!==null||selectionMode==='local'){stopAllPlayback();startOffsetTimeRef.current=selLeft;startAudioTimeRef.current=context.currentTime;const soloTid=soloedTrackId!==null?soloedTrackId:localSelectionTrackId;startLocalTrackPlayback(soloTid,selLeft);setCurrentTime(selLeft);setIsPlaying(true);}else{stopAllPlayback();startOffsetTimeRef.current=selLeft;startAudioTimeRef.current=context.currentTime;startTrackPlayback(selLeft);setCurrentTime(selLeft);setIsPlaying(true);}animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}}if(updatedTime>=maxDurationRef.current){if(recordingStateRef.current==='RECORDING'){setCurrentTime(updatedTime);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}if(isLoopingSelection){stopAllPlayback();startOffsetTimeRef.current=0;startAudioTimeRef.current=context.currentTime;startTrackPlayback(0);setCurrentTime(0);setIsPlaying(true);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}stopAllPlayback();setCurrentTime(0);return;}setCurrentTime(updatedTime);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);};useEffect(()=>{if(isPlaying||subTabs.some(s=>s.isPlaying)){animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);}else{cancelAnimationFrame(animationFrameIdRef.current);}return()=>cancelAnimationFrame(animationFrameIdRef.current);},[isPlaying,subTabs,isLoopingSelection,selLeft,selRight,selectionMode,localSelectionTrackId,selectionCleared,activeTab]);// ── Playback ── -const createChorusNode=(context,inputNode,outputNode)=>{const dryGain=context.createGain();dryGain.gain.value=0.6;const wetGain=context.createGain();wetGain.gain.value=0.5;const delayNode=context.createDelay();delayNode.delayTime.value=0.02;const lfo=context.createOscillator();lfo.type='sine';lfo.frequency.value=1.5;const lfoGain=context.createGain();lfoGain.gain.value=0.002;lfo.connect(lfoGain);lfoGain.connect(delayNode.delayTime);lfo.start();inputNode.connect(dryGain);inputNode.connect(delayNode);delayNode.connect(wetGain);dryGain.connect(outputNode);wetGain.connect(outputNode);return{stop:()=>{try{lfo.stop();}catch(e){}}};};const createReverbNode=(context,inputNode,outputNode)=>{const dryGain=context.createGain();dryGain.gain.value=0.6;const wetGain=context.createGain();wetGain.gain.value=0.4;const convolver=context.createConvolver();const rate=context.sampleRate;const len=rate*2.0;const impulse=context.createBuffer(2,len,rate);const left=impulse.getChannelData(0);const right=impulse.getChannelData(1);for(let i=0;i{if(!track)return null;let node=activeTrackNodesRef.current[track.id];if(!node){const gainNode=context.createGain();const volDb=track.volumeDb??0;const volLinear=volDb<=-50?0:Math.pow(10,volDb/20);gainNode.gain.setValueAtTime(volLinear,context.currentTime);const pannerNode=context.createStereoPanner();pannerNode.pan.setValueAtTime((track.pan??0)/100,context.currentTime);pannerNode.connect(context.destination);let fxStopFn;if(track.fxType==='chorus'){const fxInput=context.createGain();gainNode.connect(fxInput);const chorus=createChorusNode(context,fxInput,pannerNode);fxStopFn=chorus.stop;}else if(track.fxType==='reverb'){const fxInput=context.createGain();gainNode.connect(fxInput);createReverbNode(context,fxInput,pannerNode);}else{gainNode.connect(pannerNode);}node={gainNode,pannerNode,fxStopFn};activeTrackNodesRef.current[track.id]=node;}return node.gainNode;};const getOrCreateSubTrackNode=(parentTrack,subTrack,context)=>{const key=parentTrack.id+'_sub_'+subTrack.id;let node=activeTrackNodesRef.current[key];if(!node){const gainNode=context.createGain();const volDb=subTrack.volumeDb??0;const volLinear=volDb<=-50?0:Math.pow(10,volDb/20);gainNode.gain.setValueAtTime(volLinear,context.currentTime);const parentNode=activeTrackNodesRef.current[parentTrack.id];if(!parentNode)return null;let fxStopFn;if(subTrack.fxType==='chorus'){const fxInput=context.createGain();gainNode.connect(fxInput);const chorus=createChorusNode(context,fxInput,parentNode.pannerNode);fxStopFn=chorus.stop;}else if(subTrack.fxType==='reverb'){const fxInput=context.createGain();gainNode.connect(fxInput);createReverbNode(context,fxInput,parentNode.pannerNode);}else{gainNode.connect(parentNode.pannerNode);}node={gainNode,pannerNode:parentNode.pannerNode,fxStopFn};activeTrackNodesRef.current[key]=node;}return node.gainNode;};const playMidiPreviewNote=(pitch,velocity=0.8,durationMs=500)=>{if(!window.SonicSF)return;const context=getAudioContext();const tab=subTabs.find(s=>s.id===activeTabRef.current);const trackId=tab?tab.trackId:selectedTrackId;const track=activeTracks.find(t=>t.id===trackId);const destNode=getOrCreateTrackNode(track,context);const program=track?track.instrumentProgram:undefined;window.SonicSF.playNote(pitch,velocity,durationMs,context.currentTime,program,destNode);};const startTrackPlayback=offsetTime=>{const context=getAudioContext();const hasSolo=activeTracks.some(t=>t.solo)||soloedTrackId!==null;activeTracks.forEach(track=>{const isPlayable=hasSolo?track.id===soloedTrackId||track.solo:!track.muted;if(!isPlayable)return;const gainNode=getOrCreateTrackNode(track,context);const pannerNode=activeTrackNodesRef.current[track.id].pannerNode;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];clips.forEach(clip=>{if(!clip.buffer)return;const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(gainNode);const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTimeselLeft&&updatedTime>=selRight){if(soloedTrackId!==null||selectionMode==='local'){stopAllPlayback();startOffsetTimeRef.current=selLeft;startAudioTimeRef.current=context.currentTime;const soloTid=soloedTrackId!==null?soloedTrackId:localSelectionTrackId;startLocalTrackPlayback(soloTid,selLeft);setCurrentTime(selLeft);setIsPlaying(true);}else{stopAllPlayback();startOffsetTimeRef.current=selLeft;startAudioTimeRef.current=context.currentTime;startTrackPlayback(selLeft);setCurrentTime(selLeft);setIsPlaying(true);}animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}}if(updatedTime>=maxDurationRef.current){if(recordingStateRef.current==='RECORDING'){setCurrentTime(updatedTime);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}if(isLoopingSelection){stopAllPlayback();startOffsetTimeRef.current=0;startAudioTimeRef.current=context.currentTime;startTrackPlayback(0);setCurrentTime(0);setIsPlaying(true);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);return;}stopAllPlayback();setCurrentTime(0);return;}setCurrentTime(updatedTime);animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);};useEffect(()=>{if(isPlaying||subTabs.some(s=>s.isPlaying)){animationFrameIdRef.current=requestAnimationFrame(updatePlayhead);}else{cancelAnimationFrame(animationFrameIdRef.current);}return()=>cancelAnimationFrame(animationFrameIdRef.current);},[isPlaying,subTabs,isLoopingSelection,selLeft,selRight,selectionMode,localSelectionTrackId,selectionCleared,activeTab]);// ── FX Nodes ── +const createChorusNode=(context,inputNode,outputNode)=>{const dryGain=context.createGain();dryGain.gain.value=0.6;const wetGain=context.createGain();wetGain.gain.value=0.5;const delayNode=context.createDelay();delayNode.delayTime.value=0.02;const lfo=context.createOscillator();lfo.type='sine';lfo.frequency.value=1.5;const lfoGain=context.createGain();lfoGain.gain.value=0.002;lfo.connect(lfoGain);lfoGain.connect(delayNode.delayTime);lfo.start();inputNode.connect(dryGain);inputNode.connect(delayNode);delayNode.connect(wetGain);dryGain.connect(outputNode);wetGain.connect(outputNode);return{stop:()=>{try{lfo.stop();}catch(e){}}};};const createReverbNode=(context,inputNode,outputNode)=>{const dryGain=context.createGain();dryGain.gain.value=0.6;const wetGain=context.createGain();wetGain.gain.value=0.4;const convolver=context.createConvolver();const rate=context.sampleRate;const len=rate*2.0;const impulse=context.createBuffer(2,len,rate);const left=impulse.getChannelData(0);const right=impulse.getChannelData(1);for(let i=0;i{if(!track)return null;let node=activeTrackNodesRef.current[track.id];if(!node){const gainNode=context.createGain();const volDb=track.volumeDb??0;const volLinear=volDb<=-50?0:Math.pow(10,volDb/20);gainNode.gain.setValueAtTime(volLinear,context.currentTime);const pannerNode=context.createStereoPanner();pannerNode.pan.setValueAtTime((track.pan??0)/100,context.currentTime);pannerNode.connect(context.destination);let fxStopFn;if(track.fxType==='chorus'){const fxInput=context.createGain();gainNode.connect(fxInput);const chorus=createChorusNode(context,fxInput,pannerNode);fxStopFn=chorus.stop;}else if(track.fxType==='reverb'){const fxInput=context.createGain();gainNode.connect(fxInput);createReverbNode(context,fxInput,pannerNode);fxStopFn=null;}else{gainNode.connect(pannerNode);}node={gainNode,pannerNode,fxStopFn};activeTrackNodesRef.current[track.id]=node;}return node.gainNode;};const getOrCreateSubTrackNode=(track,subTrack,context)=>{if(!track||!subTrack)return null;const subKey=track.id+'_sub_'+subTrack.id;let node=activeTrackNodesRef.current[subKey];if(!node){const gainNode=context.createGain();const volDb=subTrack.volumeDb??0;const volLinear=volDb<=-50?0:Math.pow(10,volDb/20);gainNode.gain.setValueAtTime(volLinear,context.currentTime);const parentNode=getOrCreateTrackNode(track,context);gainNode.connect(parentNode);node={gainNode,pannerNode:null};activeTrackNodesRef.current[subKey]=node;}return node.gainNode;};const playMidiPreviewNote=(pitch,velocity=0.8,durationMs=500)=>{if(!window.SonicSF)return;const context=getAudioContext();const tab=subTabs.find(s=>s.id===activeTabRef.current);const trackId=tab?tab.trackId:selectedTrackId;const track=activeTracks.find(t=>t.id===trackId);const destNode=getOrCreateTrackNode(track,context);const program=track?track.instrumentProgram:undefined;window.SonicSF.playNote(pitch,velocity,durationMs,context.currentTime,program,destNode);};const startTrackPlayback=offsetTime=>{const context=getAudioContext();const hasSolo=activeTracks.some(t=>t.solo)||soloedTrackId!==null;activeTracks.forEach(track=>{const isPlayable=hasSolo?track.id===soloedTrackId||track.solo:!track.muted;if(!isPlayable)return;const gainNode=getOrCreateTrackNode(track,context);const pannerNode=activeTrackNodesRef.current[track.id].pannerNode;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];clips.forEach(clip=>{if(!clip.buffer)return;const source=context.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(gainNode);const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime0)&&window.SonicSF){const bpmVal=parseInt(bpm)||120;const secondsPerBeat=60.0/bpmVal;midiItems.forEach(item=>{const notes=item.notes||[];notes.forEach(note=>{// note start/duration is in beats (for MIDI items) const noteStartSec=item.startTime+(note.start_beat||0)*secondsPerBeat;const noteDurSec=(note.duration_beats||1)*secondsPerBeat;const noteEndSec=noteStartSec+noteDurSec;if(offsetTime{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 realIdx=idx>0?idx-1:0;clip=clips[realIdx]||clips[0];}else{clip=clips[0];}if(!clip||!clip.buffer)return{success:false,error:'Clip has no audio buffer'};const duration=parseFloat(args.duration_seconds||3);const buffer=clip.buffer;const sr=buffer.sampleRate;const numChannels=buffer.numberOfChannels;const length=buffer.length;const ctx=getAudioContext();const newBuffer=ctx.createBuffer(numChannels,length,sr);for(let c=0;c{if(t.id!==track.id)return t;const existingClips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];const updatedClips=existingClips.map(c=>{if(c.id===clip.id||clip.id.startsWith('default_')&&c.id==='default'){return{...c,buffer:newBuffer};}return c;});const mainBuffer=updatedClips[0]?.buffer||t.buffer;return{...t,clips:updatedClips,buffer:mainBuffer};});if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;}setTracks(nextTracks);setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('AI_FADE_IN',track.id,beforeSnap,afterSnap);},50);return{success:true,trackId:track.id,clipId:clip.id,duration_seconds:duration};},fadeOut:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let trackIdRaw=args.track_id;if(trackIdRaw&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(trackIdRaw)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+trackIdRaw===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){trackIdRaw=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!trackIdRaw)trackIdRaw=currentSelTrackId;const track=currentTracks.find(t=>t.id===String(trackIdRaw)||t.id==='track_'+trackIdRaw);if(!track)return{success:false,error:`Track ${trackIdRaw} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'No clips on track'};let clip=null;if(args.clip_id){clip=clips.find(c=>c.id===args.clip_id);}else if(args.clip_index!==undefined){const idx=parseInt(args.clip_index);const realIdx=idx>0?idx-1:0;clip=clips[realIdx]||clips[0];}else{clip=clips[0];}if(!clip||!clip.buffer)return{success:false,error:'Clip has no audio buffer'};const duration=parseFloat(args.duration_seconds||3);const buffer=clip.buffer;const sr=buffer.sampleRate;const numChannels=buffer.numberOfChannels;const length=buffer.length;const ctx=getAudioContext();const newBuffer=ctx.createBuffer(numChannels,length,sr);for(let c=0;c{if(t.id!==track.id)return t;const existingClips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];const 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