diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx index 3b08081..c52ef27 100644 --- a/app/static/js/app.jsx +++ b/app/static/js/app.jsx @@ -98,6 +98,221 @@ const findZeroCrossing = (buffer, targetTime) => { } return bestSample / sampleRate; }; + +class ClientMIDIRecorder { + constructor(audioContext, bpm = 120, timeSigNumerator = 4) { + this.audioCtx = audioContext; + this.bpm = bpm; + this.timeSigNum = timeSigNumerator; + this.isRecording = false; + + this.activeNotes = new Map(); // Store pitch -> { noteId, startBeat, velocity } + this.recordedNotes = []; + this.recStartAudioTime = 0.0; + this.recStartBar = 0.0; + + // Compute round-trip browser latency + this.latencyCompSec = (this.audioCtx.baseLatency || 0) + (this.audioCtx.outputLatency || 0); + } + + start(startBar = 0.0, selectedMidiInputId = null) { + this.isRecording = true; + this.recordedNotes = []; + this.activeNotes.clear(); + this.recStartBar = startBar; + this.recStartAudioTime = this.audioCtx.currentTime; + + this.bindMIDIInputs(selectedMidiInputId); + } + + bindMIDIInputs(selectedMidiInputId = null) { + if (navigator.requestMIDIAccess) { + navigator.requestMIDIAccess().then(midiAccess => { + for (let input of midiAccess.inputs.values()) { + if (selectedMidiInputId && input.id !== selectedMidiInputId) continue; + input.onmidimessage = (event) => this.handleMIDIMessage(event); + } + }); + } + } + + handleMIDIMessage(event) { + if (!this.isRecording) return; + + const [status, pitch, velocity] = event.data; + const command = status >> 4; + + // Apply latency compensation formula + const currentTimeSec = Math.max(0, this.audioCtx.currentTime - this.recStartAudioTime - this.latencyCompSec); + const secondsPerBeat = 60.0 / this.bpm; + const currentBeat = (currentTimeSec / secondsPerBeat) + (this.recStartBar * this.timeSigNum); + + // Command 0x9: Note On + if (command === 0x9 && velocity > 0) { + const noteId = `rec_${Date.now()}_${pitch}`; + this.activeNotes.set(pitch, { + id: noteId, + pitch: pitch, + start_beat: currentBeat, + velocity: velocity / 127.0 + }); + + // Fire visual feedback callback + if (this.onNoteOn) { + this.onNoteOn(pitch, currentBeat); + } + } + // Command 0x8: Note Off (or Note On with velocity = 0) + else if (command === 0x8 || (command === 0x9 && velocity === 0)) { + if (this.activeNotes.has(pitch)) { + const note = this.activeNotes.get(pitch); + const durationBeats = Math.max(0.125, currentBeat - note.start_beat); // Min 1/32 note + + const finishedNote = { + id: note.id, + pitch: note.pitch, + start_beat: note.start_beat, + duration_beats: durationBeats, + velocity: note.velocity, + pan: 0.0 + }; + + this.recordedNotes.push(finishedNote); + this.activeNotes.delete(pitch); + + if (this.onNoteOff) { + this.onNoteOff(pitch, finishedNote); + } + } + } + } + + stop() { + this.isRecording = false; + + // Flush remaining active keypresses when stop is triggered + const currentTimeSec = Math.max(0, this.audioCtx.currentTime - this.recStartAudioTime - this.latencyCompSec); + const currentBeat = (currentTimeSec / (60.0 / this.bpm)) + (this.recStartBar * this.timeSigNum); + + for (let [pitch, note] of this.activeNotes.entries()) { + this.recordedNotes.push({ + id: note.id, + pitch: note.pitch, + start_beat: note.start_beat, + duration_beats: Math.max(0.25, currentBeat - note.start_beat), + velocity: note.velocity, + pan: 0.0 + }); + } + this.activeNotes.clear(); + + // Disconnect midi Access callbacks + if (navigator.requestMIDIAccess) { + navigator.requestMIDIAccess().then(midiAccess => { + for (let input of midiAccess.inputs.values()) { + input.onmidimessage = null; + } + }); + } + + return this.recordedNotes; + } +} + +class ClientAudioRecorder { + constructor(audioContext) { + this.audioCtx = audioContext; + this.mediaStream = null; + this.sourceNode = null; + this.workletNode = null; + this.pcmChunks = []; + this.isRecording = false; + } + + async initializeInput(deviceId = null) { + const constraints = { + audio: { + deviceId: deviceId ? { exact: deviceId } : undefined, + echoCancellation: false, + noiseSuppression: false, + autoGainControl: false + } + }; + this.mediaStream = await navigator.mediaDevices.getUserMedia(constraints); + this.sourceNode = this.audioCtx.createMediaStreamSource(this.mediaStream); + } + + async start(destinationTrackGainNode = null, enableMonitoring = true) { + this.pcmChunks = []; + this.isRecording = true; + + // Load Worklet Processor Module + await this.audioCtx.audioWorklet.addModule('/static/processors/pcm-recorder-processor.js'); + this.workletNode = new AudioWorkletNode(this.audioCtx, 'pcm-recorder-processor'); + + // Receive PCM data streams from AudioWorklet + this.workletNode.port.onmessage = (event) => { + if (this.isRecording && event.data.type === 'PCM_DATA') { + const chunk = new Float32Array(event.data.buffer); + this.pcmChunks.push(chunk); + + // VU Meter Level Callback + if (this.onLevelUpdate) { + let sum = 0; + for (let i = 0; i < chunk.length; i++) { + sum += chunk[i] * chunk[i]; + } + const rms = Math.sqrt(sum / chunk.length); + const db = rms > 0 ? 20 * Math.log10(rms) : -96; + this.onLevelUpdate(db); + } + + // Live visualization Callback + if (this.onPCMChunk) { + this.onPCMChunk(chunk); + } + } + }; + + // Route Audio Nodes + this.sourceNode.connect(this.workletNode); + + // Enable Live Input Monitoring if requested + if (enableMonitoring && destinationTrackGainNode) { + this.sourceNode.connect(destinationTrackGainNode); + } + } + + async stop() { + this.isRecording = false; + + if (this.sourceNode && this.workletNode) { + try { + this.sourceNode.disconnect(this.workletNode); + } catch (e) {} + } + + if (this.mediaStream) { + this.mediaStream.getTracks().forEach(track => track.stop()); + } + + // Concatenate PCM Float32Array chunks into a single AudioBuffer + const totalSamples = this.pcmChunks.reduce((sum, chunk) => sum + chunk.length, 0); + if (totalSamples === 0) return null; + + const audioBuffer = this.audioCtx.createBuffer(1, totalSamples, this.audioCtx.sampleRate); + const channelData = audioBuffer.getChannelData(0); + + let offset = 0; + for (const chunk of this.pcmChunks) { + channelData.set(chunk, offset); + offset += chunk.length; + } + + return audioBuffer; // Return compiled AudioBuffer for timeline insertion + } +} + const VolumeKnob = ({ value, onChange, @@ -197,7 +412,11 @@ const WaveformLane = ({ onEditClipInSubTab, snapValue, bpm, - scrollLeft + scrollLeft, + recordingState, + recTempMidiNotes, + recTempAudioBuffer, + recStartTimelineTime }) => { const canvasRef = useRef(null); const drawWidth = Math.min(timelineWidth, viewportWidth); @@ -246,13 +465,25 @@ const WaveformLane = ({ } // Draw waveform lane - const clips = track.clips && track.clips.length > 0 ? track.clips : track.buffer ? [{ + 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 - }] : []; + }] : [])]; + + if (recordingState === 'RECORDING' && track.isArmed && track.inputSource?.deviceType === 'MICROPHONE' && recTempAudioBuffer) { + clips.push({ + id: 'rec_temp_' + track.id, + buffer: recTempAudioBuffer, + startTime: recStartTimelineTime, + name: '[GHI ÂM...]', + speed: 1.0, + isTemp: true + }); + } + if (clips.length > 0) { clips.forEach(clip => { const numChannels = clip.buffer.numberOfChannels || 1; @@ -276,8 +507,8 @@ const WaveformLane = ({ // 1. Draw Clip Layer Background & Border const clipIdentifier = clip.id === 'default' ? 'default_' + track.id : clip.id; const isClipSelected = selectedClipId && selectedClipId.trackId === track.id && selectedClipId.clipId === clipIdentifier; - ctx.fillStyle = isClipSelected ? track.color ? track.color + '44' : 'rgba(6, 182, 212, 0.30)' : track.color ? track.color + '22' : 'rgba(6, 182, 212, 0.12)'; - ctx.strokeStyle = isClipSelected ? '#fbbf24' : track.color || '#06b6d4'; + ctx.fillStyle = clip.isTemp ? 'rgba(239, 68, 68, 0.25)' : isClipSelected ? track.color ? track.color + '44' : 'rgba(6, 182, 212, 0.30)' : track.color ? track.color + '22' : 'rgba(6, 182, 212, 0.12)'; + ctx.strokeStyle = clip.isTemp ? '#ef4444' : isClipSelected ? '#fbbf24' : track.color || '#06b6d4'; ctx.lineWidth = isClipSelected ? 1 : 1.5; const clipTop = 4; const clipHeight = height - 8; @@ -479,6 +710,41 @@ const WaveformLane = ({ ctx.fillText(midi.name || 'MIDI', Math.max(midiStartLocal + 4, 4), 14); }); + if (recordingState === 'RECORDING' && track.isArmed && track.inputSource?.deviceType === 'MIDI_KEYBOARD') { + const liveMidiDuration = currentTime - recStartTimelineTime; + const recStartLocal = recStartTimelineTime * zoom - scrollLeft; + const recWidth = liveMidiDuration * zoom; + if (recWidth > 0 && recStartLocal + recWidth >= 0 && recStartLocal <= drawWidth) { + ctx.fillStyle = 'rgba(239, 68, 68, 0.2)'; + ctx.fillRect(recStartLocal, 2, recWidth, height - 4); + ctx.strokeStyle = '#ef4444'; + ctx.lineWidth = 1.5; + ctx.strokeRect(recStartLocal, 2, recWidth, height - 4); + ctx.fillStyle = '#fca5a5'; + ctx.font = 'bold 9px sans-serif'; + ctx.fillText('[GHI MIDI...]', Math.max(recStartLocal + 4, 4), 14); + + if (recTempMidiNotes && recTempMidiNotes.length > 0) { + const secondsPerBeat = 60.0 / (parseInt(bpm) || 120); + recTempMidiNotes.forEach(note => { + const noteStartSec = note.start_beat * secondsPerBeat; + const noteDurSec = note.duration_beats * secondsPerBeat; + const nxLocal = noteStartSec * zoom - scrollLeft; + const nw = noteDurSec * zoom; + + const pitchMin = 36; + const pitchMax = 84; + const pitchFrac = Math.max(0, Math.min(1, (note.pitch - pitchMin) / (pitchMax - pitchMin))); + const ny = 6 + (1.0 - pitchFrac) * (height - 18); + const nh = 3; + + ctx.fillStyle = '#10b981'; + ctx.fillRect(nxLocal, 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; @@ -4227,7 +4493,10 @@ const App = () => { serverFileId: null, clips: [], sections: [], - midiItems: [] + midiItems: [], + isArmed: false, + monitoringEnabled: true, + inputSource: { deviceType: 'NONE', deviceId: '' } }, { id: '2', name: 'Track 02', @@ -4243,7 +4512,10 @@ const App = () => { serverFileId: null, clips: [], sections: [], - midiItems: [] + midiItems: [], + isArmed: false, + monitoringEnabled: true, + inputSource: { deviceType: 'NONE', deviceId: '' } }]); const [appWarningModal, setAppWarningModal] = useState(null); const [bpm, setBpm] = useState(localStorage.getItem('studio_bpm') || '120'); @@ -4292,7 +4564,47 @@ const App = () => { const [saveAsModalOpen, setSaveAsModalOpen] = useState(false); const [soloedTrackId, setSoloedTrackId] = useState(null); const [toastMessage, setToastMessage] = useState(null); + const [audioDevices, setAudioDevices] = useState([]); + const [midiDevices, setMidiDevices] = useState([]); + + useEffect(() => { + if (navigator.mediaDevices && navigator.mediaDevices.enumerateDevices) { + navigator.mediaDevices.enumerateDevices().then(devices => { + setAudioDevices(devices.filter(d => d.kind === 'audioinput')); + }).catch(err => console.log('Enumerate audio devices error:', err)); + } + if (navigator.requestMIDIAccess) { + navigator.requestMIDIAccess().then(access => { + const inputs = []; + for (let input of access.inputs.values()) { + inputs.push(input); + } + setMidiDevices(inputs); + access.onstatechange = () => { + const inputs = []; + for (let input of access.inputs.values()) { + inputs.push(input); + } + setMidiDevices(inputs); + }; + }).catch(err => console.log('MIDI access error:', err)); + } + }, []); + const [showAIConfig, setShowAIConfig] = useState(false); + const [recordingState, setRecordingState] = useState('IDLE'); // 'IDLE' | 'COUNT_IN' | 'RECORDING' + const [recTempMidiNotes, setRecTempMidiNotes] = useState([]); + const [recTempAudioBuffer, setRecTempAudioBuffer] = useState(null); + const [recStartTimelineTime, setRecStartTimelineTime] = useState(0); + + const activeMIDIRecordersRef = useRef({}); + const activeAudioRecordersRef = useRef({}); + const recordingPCMDataRef = useRef({}); + const recordingStartTimeRef = useRef(0); + const recordingStateRef = useRef(recordingState); + recordingStateRef.current = recordingState; + const lastTempCompileTimeRef = useRef(0); + const nextMetronomeBeatRef = useRef(0); const [showExportPanel, setShowExportPanel] = useState(true); const [showAIPanel, setShowAIPanel] = useState(true); const [showSelectionPanel, setShowSelectionPanel] = useState(true); @@ -4315,6 +4627,7 @@ const App = () => { const [dragGhostPos, setDragGhostPos] = useState(null); const [dragGhostPanel, setDragGhostPanel] = useState(null); const panelDragRef = useRef(null); + const trackVuRefs = useRef({}); const workspaceRef = useRef(null); const colResizerRef = useRef(null); const rowResizerRef = useRef(null); @@ -4455,6 +4768,8 @@ const App = () => { const st = sessionTabs.find(s => s.id === activeTab); return st ? st.tracks : tracks; }, [activeTab, sessionTabs, tracks]); + const activeTracksRef = useRef([]); + activeTracksRef.current = activeTracks; const [selectionCleared, setSelectionCleared] = useState(false); // LOOP_EDITOR_2.md §4.2 @@ -6044,21 +6359,118 @@ const App = () => { }; const contextMenuDelete = () => { const tid = contextMenu.trackId; + const track = activeTracks.find(t => t.id === tid); + if (!track) { + closeContextMenu(); + return; + } + + const secondsPerBeat = 60.0 / (parseInt(bpm) || 120); + const secondsPerBar = secondsPerBeat * 4; + const time = contextMenu.time; + + // Check for Section item under cursor + const secList = track.sections || []; + const clickedSec = secList.find(s => time >= s.start && time < s.start + s.duration); + + // Check for MIDI item under cursor + const midiItems = track.midiItems || []; + const clickedMidi = midiItems.find(m => time >= m.startTime && time < m.startTime + (m.duration || 4) * secondsPerBar); + + // Check for Audio clip under cursor + 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 + }] : []; + const clickedClip = clips.find(c => time >= c.startTime && time < c.startTime + c.buffer.duration / (c.speed || 1.0)); + + if (clickedSec) { + const beforeSnap = captureTrackSnapshot(tid); + updateActiveTracks(prev => prev.map(t => { + if (t.id !== tid) return t; + return { + ...t, + sections: (t.sections || []).filter(s => s.id !== clickedSec.id) + }; + })); + const afterSnap = captureTrackSnapshot(tid); + pushAction('DELETE_SECTION', tid, beforeSnap, afterSnap); + closeContextMenu(); + showToast('Đã xoá section item.', 'info'); + return; + } + + if (clickedMidi) { + const beforeSnap = captureTrackSnapshot(tid); + updateActiveTracks(prev => prev.map(t => { + if (t.id !== tid) return t; + return { + ...t, + midiItems: (t.midiItems || []).filter(m => m.id !== clickedMidi.id) + }; + })); + const afterSnap = captureTrackSnapshot(tid); + pushAction('DELETE_MIDI', tid, beforeSnap, afterSnap); + closeContextMenu(); + showToast('Đã xoá MIDI item.', 'info'); + return; + } + + if (clickedClip) { + const beforeSnap = captureTrackSnapshot(tid); + updateActiveTracks(prev => prev.map(t => { + if (t.id !== tid) return t; + const updatedClips = (t.clips || []).filter(c => c.id !== clickedClip.id); + return { + ...t, + clips: updatedClips, + buffer: updatedClips[0]?.buffer || null, + startTime: updatedClips[0]?.startTime || 0, + name: updatedClips[0]?.name || t.name + }; + })); + const afterSnap = captureTrackSnapshot(tid); + pushAction('DELETE_CLIP', tid, beforeSnap, afterSnap); + closeContextMenu(); + showToast('Đã xoá audio clip.', 'info'); + return; + } + + // No item clicked under cursor -> Attempt to delete the track itself + const hasClips = (track.clips && track.clips.length > 0) || !!track.buffer; + const hasMidi = track.midiItems && track.midiItems.length > 0; + const hasSections = track.sections && track.sections.length > 0; + const isTrackEmpty = !hasClips && !hasMidi && !hasSections; + + if (!isTrackEmpty) { + closeContextMenu(); + setAppWarningModal({ + title: 'Không thể xoá Track', + message: 'Không thể xoá track chứa dữ liệu. Vui lòng xoá hết các item trước khi xoá track.', + isAlert: true + }); + return; + } + const sessionTab = sessionTabs.find(s => s.id === activeTab); if (sessionTab) { - updateActiveTracks(prev => prev.filter(t => t.id !== tid)); - if (selectedTrackId === tid) setSelectedTrackId('1'); + updateActiveTracks(prev => { + const filtered = prev.filter(t => t.id !== tid); + if (filtered.length > 0) setSelectedTrackId(filtered[0].id); + return filtered; + }); closeContextMenu(); showToast('Đã xoá track.', 'info'); } else { - const track = tracks.find(t => t.id === tid); - if (track && track.sections && track.sections.length > 0) { - closeContextMenu(); - showToast('Không thể xoá track chứa Section item.', 'warning'); - return; - } const beforeSnap = captureTrackSnapshot(tid); - setTracks(prev => prev.filter(t => t.id !== tid)); + setTracks(prev => { + const filtered = prev.filter(t => t.id !== tid); + if (filtered.length > 0) setSelectedTrackId(filtered[0].id || '1'); + return filtered; + }); const afterSnap = captureTrackSnapshot(tid); pushAction('DELETE', tid, beforeSnap, afterSnap); if (selectedTrackId === tid) setSelectedTrackId(tracks.filter(t => t.id !== tid)[0]?.id || '1'); @@ -6748,7 +7160,76 @@ const App = () => { startBufferOffsetRef.current = offsetBuffer; startAudioTimeRef.current = context.currentTime; }; + const playMetronomeClick = (time, isDownbeat = false) => { + try { + const ctx = getAudioContext(); + const osc = ctx.createOscillator(); + const gainNode = ctx.createGain(); + osc.connect(gainNode); + gainNode.connect(ctx.destination); + + osc.frequency.setValueAtTime(isDownbeat ? 1000 : 800, time); + gainNode.gain.setValueAtTime(0.08, time); + gainNode.gain.exponentialRampToValueAtTime(0.001, time + 0.08); + + osc.start(time); + osc.stop(time + 0.1); + } catch (e) { + console.log('Metronome click play error:', e); + } + }; + const updatePlayhead = () => { + if (recordingStateRef.current === 'RECORDING') { + const audioCtx = getAudioContext(); + const lookahead = 0.1; // 100ms + const secondsPerBeat = 60.0 / (parseInt(bpmRef.current) || 120); + + // Metronome Click Scheduler + while (true) { + const beatNum = nextMetronomeBeatRef.current; + const elapsedBeats = beatNum - (recordingStartTimeRef.current / secondsPerBeat); + const beatTime = startAudioTimeRef.current + elapsedBeats * secondsPerBeat; + + if (beatTime < audioCtx.currentTime + lookahead) { + const isDownbeat = (beatNum % 4 === 0); + playMetronomeClick(beatTime, isDownbeat); + nextMetronomeBeatRef.current++; + } else { + break; + } + } + + // Throttled Live Preview compilation (every 200ms) + const now = Date.now(); + if (now - lastTempCompileTimeRef.current > 200) { + lastTempCompileTimeRef.current = now; + + // Audio preview + for (let trackId in recordingPCMDataRef.current) { + const data = recordingPCMDataRef.current[trackId]; + if (data && data.length > 0) { + const tempBuf = audioCtx.createBuffer(1, data.length, audioCtx.sampleRate); + tempBuf.getChannelData(0).set(data); + setRecTempAudioBuffer(tempBuf); + } + } + + // MIDI preview + const armedTracks = activeTracksRef.current.filter(t => t.isArmed); + for (let track of armedTracks) { + const midiRec = activeMIDIRecordersRef.current[track.id]; + if (midiRec) { + const currentBeat = (audioCtx.currentTime - midiRec.recStartAudioTime - midiRec.latencyCompSec) / secondsPerBeat + (midiRec.recStartBar * 4); + setRecTempMidiNotes([...midiRec.recordedNotes, ...Array.from(midiRec.activeNotes.values()).map(n => ({ + ...n, + duration_beats: currentBeat - n.start_beat + }))]); + } + } + } + } + if (activeTabRef.current !== 'main') { const st = subTabsRef.current.find(s => s.id === activeTabRef.current); if (!st || !st.isPlaying || !st.buffer) return; @@ -7004,6 +7485,10 @@ const App = () => { }))); }; const handleStop = () => { + if (recordingStateRef.current === 'RECORDING' || recordingStateRef.current === 'COUNT_IN') { + stopRecordingTake(); + return; + } stopAllPlayback(); if (activeTab !== 'main') { setSubTabs(prev => prev.map(s => s.id === activeTab ? { @@ -7014,6 +7499,240 @@ const App = () => { setCurrentTime(0); } }; + + const drawVuMeter = (canvas, db) => { + if (!canvas) return; + const ctx = canvas.getContext('2d'); + if (!ctx) return; + + const w = canvas.width; + const h = canvas.height; + ctx.clearRect(0, 0, w, h); + + const minDb = -60; + const maxDb = 0; + const frac = Math.max(0, Math.min(1, (db - minDb) / (maxDb - minDb))); + + ctx.fillStyle = '#18181b'; + ctx.fillRect(0, 0, w, h); + + const grad = ctx.createLinearGradient(0, 0, w, 0); + grad.addColorStop(0, '#10b981'); + grad.addColorStop(0.7, '#eab308'); + grad.addColorStop(0.95, '#ef4444'); + + ctx.fillStyle = grad; + ctx.fillRect(0, 0, w * frac, h); + + if (db >= -0.5) { + ctx.fillStyle = '#ff0000'; + ctx.fillRect(w - 6, 0, 6, h); + } + }; + + const handleRecordClick = async () => { + if (recordingState === 'RECORDING' || recordingState === 'COUNT_IN') { + await stopRecordingTake(); + return; + } + + const armed = activeTracks.filter(t => t.isArmed && t.inputSource?.deviceType && t.inputSource.deviceType !== 'NONE'); + if (armed.length === 0) { + showToast('Vui lòng Arm (R) ít nhất một track và chọn cổng Input để ghi âm.', 'warning'); + return; + } + + setRecordingState('COUNT_IN'); + const secondsPerBeat = 60.0 / (parseInt(bpm) || 120); + const countInDuration = secondsPerBeat * 4; + const audioCtx = getAudioContext(); + const now = audioCtx.currentTime; + + showToast('Metronome Count-in: 4... 3... 2... 1...', 'info'); + + for (let i = 0; i < 4; i++) { + playMetronomeClick(now + i * secondsPerBeat, i === 0); + } + + setTimeout(() => { + startRecordingTake(armed); + }, countInDuration * 1000); + }; + + const startRecordingTake = async (armedTracks) => { + const context = getAudioContext(); + if (context.state === 'suspended') { + await context.resume(); + } + + setRecordingState('RECORDING'); + setRecTempMidiNotes([]); + setRecTempAudioBuffer(null); + + const startTimelineTime = currentTime; + setRecStartTimelineTime(startTimelineTime); + recordingStartTimeRef.current = startTimelineTime; + + const secondsPerBeat = 60.0 / (parseInt(bpm) || 120); + const startBeat = startTimelineTime / secondsPerBeat; + nextMetronomeBeatRef.current = Math.ceil(startBeat); + + activeMIDIRecordersRef.current = {}; + activeAudioRecordersRef.current = {}; + recordingPCMDataRef.current = {}; + + startOffsetTimeRef.current = startTimelineTime; + startAudioTimeRef.current = context.currentTime; + startTrackPlayback(startTimelineTime); + setIsPlaying(true); + + for (let track of armedTracks) { + if (track.inputSource.deviceType === 'MIDI_KEYBOARD') { + const midiRec = new ClientMIDIRecorder(context, parseInt(bpm) || 120, 4); + + midiRec.onNoteOn = (pitch, currentBeat) => { + const canvas = trackVuRefs.current[track.id]; + if (canvas) { + drawVuMeter(canvas, 0); + setTimeout(() => drawVuMeter(canvas, -60), 100); + } + setRecTempMidiNotes([...midiRec.recordedNotes, ...Array.from(midiRec.activeNotes.values()).map(n => ({ + ...n, + duration_beats: currentBeat - n.start_beat + }))]); + }; + + midiRec.onNoteOff = () => { + const currentBeat = (context.currentTime - midiRec.recStartAudioTime - midiRec.latencyCompSec) / (60.0 / midiRec.bpm) + (midiRec.recStartBar * 4); + setRecTempMidiNotes([...midiRec.recordedNotes, ...Array.from(midiRec.activeNotes.values()).map(n => ({ + ...n, + duration_beats: currentBeat - n.start_beat + }))]); + }; + + midiRec.start(startTimelineTime / (secondsPerBeat * 4), track.inputSource.deviceId); + activeMIDIRecordersRef.current[track.id] = midiRec; + + } else if (track.inputSource.deviceType === 'MICROPHONE') { + const audioRec = new ClientAudioRecorder(context); + try { + await audioRec.initializeInput(track.inputSource.deviceId); + + recordingPCMDataRef.current[track.id] = []; + + audioRec.onLevelUpdate = (db) => { + const canvas = trackVuRefs.current[track.id]; + if (canvas) { + drawVuMeter(canvas, db); + } + }; + + audioRec.onPCMChunk = (chunk) => { + if (recordingPCMDataRef.current[track.id]) { + const currentData = recordingPCMDataRef.current[track.id]; + const newData = new Float32Array(currentData.length + chunk.length); + newData.set(currentData); + newData.set(chunk, currentData.length); + recordingPCMDataRef.current[track.id] = newData; + } + }; + + const monitorGain = track.monitoringEnabled ? context.destination : null; + await audioRec.start(monitorGain, track.monitoringEnabled); + activeAudioRecordersRef.current[track.id] = audioRec; + } catch (err) { + console.error('Failed to initialize microphone:', err); + showToast('Không khởi động được micro: ' + err.message, 'warning'); + } + } + } + + showToast('Đang ghi âm...', 'info'); + }; + + const stopRecordingTake = async () => { + setRecordingState('IDLE'); + stopAllPlayback(); + + const context = getAudioContext(); + const secondsPerBeat = 60.0 / (parseInt(bpm) || 120); + + const midiRecorders = activeMIDIRecordersRef.current; + const audioRecorders = activeAudioRecordersRef.current; + + Object.keys(trackVuRefs.current).forEach(tid => { + const canvas = trackVuRefs.current[tid]; + if (canvas) drawVuMeter(canvas, -60); + }); + + let hasRecordedAnything = false; + + for (let trackId in midiRecorders) { + const midiRec = midiRecorders[trackId]; + const recordedNotes = midiRec.stop(); + if (recordedNotes.length > 0) { + hasRecordedAnything = true; + const totalDurationBeats = Math.max(4.0, ...recordedNotes.map(n => n.start_beat + n.duration_beats)); + + const newMidiItem = { + id: 'midi_rec_' + Date.now(), + name: 'Recorded MIDI', + startTime: recordingStartTimeRef.current, + duration: Math.ceil(totalDurationBeats / 4), + notes: recordedNotes + }; + + updateActiveTracks(prev => prev.map(t => { + if (t.id !== trackId) return t; + return { + ...t, + midiItems: [...(t.midiItems || []), newMidiItem] + }; + })); + } + } + + for (let trackId in audioRecorders) { + const audioRec = audioRecorders[trackId]; + const audioBuffer = await audioRec.stop(); + if (audioBuffer && audioBuffer.duration > 0.05) { + hasRecordedAnything = true; + + const newClip = { + id: 'clip_rec_' + Date.now(), + name: 'Recorded Audio.wav', + buffer: audioBuffer, + startTime: recordingStartTimeRef.current, + speed: 1.0 + }; + + updateActiveTracks(prev => prev.map(t => { + if (t.id !== trackId) return t; + const updatedClips = [...(t.clips || []), newClip]; + return { + ...t, + clips: updatedClips, + buffer: updatedClips[0]?.buffer || null, + startTime: updatedClips[0]?.startTime || 0, + name: updatedClips[0]?.name || t.name + }; + })); + } + } + + activeMIDIRecordersRef.current = {}; + activeAudioRecordersRef.current = {}; + recordingPCMDataRef.current = {}; + + setRecTempMidiNotes([]); + setRecTempAudioBuffer(null); + + if (hasRecordedAnything) { + showToast('Đã thu và lưu bản ghi vào timeline.', 'success'); + } else { + showToast('Đã dừng ghi âm (không phát hiện tín hiệu đầu vào).', 'info'); + } + }; const handleSubTabResizeMouseDown = e => { e.preventDefault(); e.stopPropagation(); @@ -7904,7 +8623,10 @@ const App = () => { serverFileId: null, clips: [], sections: [], - midiItems: [] + midiItems: [], + isArmed: false, + monitoringEnabled: true, + inputSource: { deviceType: 'NONE', deviceId: '' } }]); showToast(`Đã thêm Track ${newId}.`, 'info'); setTimeout(() => lucide.createIcons(), 200); @@ -7921,6 +8643,27 @@ const App = () => { } }; + const toggleTrackArm = trackId => { + updateActiveTracks(prev => prev.map(t => { + if (t.id !== trackId) return t; + return { ...t, isArmed: !t.isArmed }; + })); + }; + + const toggleTrackMonitor = trackId => { + updateActiveTracks(prev => prev.map(t => { + if (t.id !== trackId) return t; + return { ...t, monitoringEnabled: !t.monitoringEnabled }; + })); + }; + + const updateTrackInputSource = (trackId, type, deviceId) => { + updateActiveTracks(prev => prev.map(t => { + if (t.id !== trackId) return t; + return { ...t, inputSource: { deviceType: type, deviceId } }; + })); + }; + // ── Insert Track Below Selected ── const insertTrackBelow = () => { const curTracks = activeTracks; @@ -10463,6 +11206,15 @@ const App = () => { }, /*#__PURE__*/React.createElement("i", { "data-lucide": "square", className: "w-3.5 h-3.5 fill-current" + }))), /*#__PURE__*/React.createElement("button", { + onClick: handleRecordClick, + className: `w-7 h-7 flex items-center justify-center rounded border transition ${recordingState === 'RECORDING' ? 'bg-red-600 text-white border-red-500 hover:bg-red-500 animate-pulse' : recordingState === 'COUNT_IN' ? 'bg-amber-500 text-black border-amber-400 hover:bg-amber-400 animate-pulse' : 'bg-zinc-800 text-red-500 border-zinc-700 hover:bg-zinc-700 hover:text-red-400'}`, + title: recordingState === 'RECORDING' ? "Đang ghi âm..." : recordingState === 'COUNT_IN' ? "Chuẩn bị ghi âm..." : "Ghi âm (Record)" + }, /*#__PURE__*/React.createElement("span", { + className: "inline-flex items-center shrink-0" + }, /*#__PURE__*/React.createElement("i", { + "data-lucide": "circle", + className: "w-3.5 h-3.5 fill-current" }))), /*#__PURE__*/React.createElement("button", { onClick: () => { if (activeTab !== 'main') { @@ -11350,14 +12102,26 @@ const App = () => { e.stopPropagation(); toggleTrackMute(track.id); }, - className: `px-1.5 py-0.5 text-xs rounded font-mono font-bold border transition ${track.muted ? 'bg-red-950 text-red-400 border-red-700' : 'bg-zinc-800 text-zinc-400 border-transparent hover:text-zinc-200'}` + className: `px-1 py-0.5 text-[10px] rounded font-mono font-bold border transition ${track.muted ? 'bg-red-950 text-red-400 border-red-700' : 'bg-zinc-800 text-zinc-400 border-transparent hover:text-zinc-200'}` }, "M"), /*#__PURE__*/React.createElement("button", { onClick: e => { e.stopPropagation(); toggleTrackSoloEvaluate(track.id); }, - className: `px-1.5 py-0.5 text-xs rounded font-mono font-bold border transition ${soloedTrackId === track.id || track.solo ? 'bg-amber-950 text-amber-400 border-amber-600' : 'bg-zinc-800 text-zinc-400 border-transparent hover:text-zinc-200'}` + className: `px-1 py-0.5 text-[10px] rounded font-mono font-bold border transition ${soloedTrackId === track.id || track.solo ? 'bg-amber-950 text-amber-400 border-amber-600' : 'bg-zinc-800 text-zinc-400 border-transparent hover:text-zinc-200'}` }, "S"), /*#__PURE__*/React.createElement("button", { + onClick: e => { + e.stopPropagation(); + toggleTrackArm(track.id); + }, + className: `px-1 py-0.5 text-[10px] rounded font-mono font-bold border transition ${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'}` + }, "R"), /*#__PURE__*/React.createElement("button", { + onClick: e => { + e.stopPropagation(); + toggleTrackMonitor(track.id); + }, + className: `px-1 py-0.5 text-[10px] rounded font-mono font-bold border transition ${track.monitoringEnabled ? 'bg-amber-600 text-white border-amber-500 hover:bg-amber-500' : 'bg-zinc-800 text-zinc-500 border-transparent hover:text-zinc-305'}` + }, "I"), /*#__PURE__*/React.createElement("button", { onClick: e => { e.stopPropagation(); deleteTrack(track.id); @@ -11367,7 +12131,7 @@ const App = () => { className: "inline-flex items-center shrink-0" }, /*#__PURE__*/React.createElement("i", { "data-lucide": "trash-2", - className: "w-3.5 h-3.5" + className: "w-3 h-3" }))))), /*#__PURE__*/React.createElement("div", { className: "flex flex-col gap-0.5 text-xs", onClick: e => e.stopPropagation() @@ -11405,7 +12169,44 @@ const App = () => { } }), /*#__PURE__*/React.createElement("span", { className: "w-12 text-right font-mono text-zinc-300 text-xs" - }, track.pan > 0 ? 'R' + track.pan : track.pan < 0 ? 'L' + Math.abs(track.pan) : 'C'))), /*#__PURE__*/React.createElement("div", { + }, track.pan > 0 ? 'R' + track.pan : track.pan < 0 ? 'L' + Math.abs(track.pan) : 'C')), /*#__PURE__*/React.createElement("div", { + className: "flex items-center gap-1 mt-0.5" + }, /*#__PURE__*/React.createElement("span", { + className: "w-8 text-right text-zinc-500 text-[10px]" + }, "In:"), /*#__PURE__*/React.createElement("select", { + value: `${track.inputSource?.deviceType || 'NONE'}:${track.inputSource?.deviceId || ''}`, + onChange: e => { + const val = e.target.value; + const parts = val.split(':'); + const type = parts[0]; + const id = parts.slice(1).join(':'); + updateTrackInputSource(track.id, type, id); + }, + className: "flex-1 bg-[#18181b] text-zinc-300 text-[10px] rounded border border-zinc-700 focus:outline-none py-0.5 px-1 truncate max-w-[120px]" + }, /*#__PURE__*/React.createElement("option", { + value: "NONE:" + }, "No Input"), /*#__PURE__*/React.createElement("optgroup", { + label: "Microphones" + }, audioDevices.map(d => /*#__PURE__*/React.createElement("option", { + key: d.deviceId, + value: `MICROPHONE:${d.deviceId}` + }, d.label || `Microphone ${d.deviceId.slice(0, 5)}`))), /*#__PURE__*/React.createElement("optgroup", { + label: "MIDI Keyboards" + }, midiDevices.map(d => /*#__PURE__*/React.createElement("option", { + key: d.id, + value: `MIDI_KEYBOARD:${d.id}` + }, d.name || `MIDI Input ${d.id.slice(0, 5)}`))))), track.isArmed && /*#__PURE__*/React.createElement("div", { + className: "flex items-center gap-1 mt-0.5" + }, /*#__PURE__*/React.createElement("span", { + className: "w-8 text-right text-zinc-500 text-[9px]" + }, "VU:"), /*#__PURE__*/React.createElement("canvas", { + ref: el => { + if (el) trackVuRefs.current[track.id] = el;else delete trackVuRefs.current[track.id]; + }, + width: 100, + height: 4, + className: "flex-1 bg-[#18181b] rounded h-1" + }))), /*#__PURE__*/React.createElement("div", { className: "flex items-center gap-1.5 mt-1", onClick: e => e.stopPropagation() }, /*#__PURE__*/React.createElement("input", { @@ -11562,7 +12363,11 @@ const App = () => { onSetLocalSelectionEnd: setLocalSelectionEnd, localSelLeft: localSelectionStart !== null && localSelectionEnd !== null ? Math.min(localSelectionStart, localSelectionEnd) : null, localSelRight: localSelectionStart !== null && localSelectionEnd !== null ? Math.max(localSelectionStart, localSelectionEnd) : null, - scrollLeft: scrollLeft + scrollLeft: scrollLeft, + recordingState: recordingState, + recTempMidiNotes: recTempMidiNotes, + recTempAudioBuffer: recTempAudioBuffer, + recStartTimelineTime: recStartTimelineTime }), selectionMode === 'local' && localSelectionTrackId === track.id && localSelectionStart !== null && localSelectionEnd !== null && Math.abs(localSelectionEnd - localSelectionStart) > 0 && /*#__PURE__*/React.createElement("div", { className: "absolute top-0 bottom-0 border-l border-r border-amber-400 bg-amber-500/20 z-20 pointer-events-none", style: { diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index 379cc8f..652fbcf 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -2,11 +2,28 @@ const{useState,useRef,useEffect,useMemo,useCallback}=React;// ── FastAPI Bac const API_BASE_URL=window.location.origin;const API_AUDIO=`${API_BASE_URL}/api/v1/audio`;const API_MULTITRACK=`${API_BASE_URL}/api/v1/multitrack`;const API_TASKS=`${API_BASE_URL}/api/v1/audio/tasks`;// Handle ?sfs= from double-clicking a .sfs file (opens domain -> loads project) (function handleSfsDeepLink(){try{const params=new URLSearchParams(window.location.search);const sfsParam=params.get('sfs');if(!sfsParam)return;const decoded=JSON.parse(decodeURIComponent(sfsParam));window.__pendingSfsProject=decoded;// consumed after auth in App if(window.history.replaceState){window.history.replaceState({},document.title,window.location.pathname);}}catch(e){window.__pendingSfsProject=null;}})();// Storage for server-side file IDs mapped to track IDs -let serverFileIdMap={};let audioCtx;function getAudioContext(){if(!audioCtx){audioCtx=new(window.AudioContext||window.webkitAudioContext)();if(window.SonicAudio&&window.SonicAudio.initAudioWorklet){window.SonicAudio.initAudioWorklet();}}if(audioCtx.state==='suspended'){audioCtx.resume();}return audioCtx;}const formatTime=secs=>{if(isNaN(secs)||secs<0)return"0:00.000";const m=Math.floor(secs/60);const s=Math.floor(secs%60);const ms=Math.floor(secs%1*1000).toString().padStart(3,'0');return`${m}:${s.toString().padStart(2,'0')}.${ms}`;};const formatTimeSimple=secs=>{if(isNaN(secs)||secs<0)return"0.00s";return`${secs.toFixed(2)}s`;};const formatBeat=(secs,bpmVal)=>{if(isNaN(secs)||secs<0)return"1.1.1";const beatDuration=60/bpmVal;const barDuration=beatDuration*4;const bar=Math.floor(secs/barDuration)+1;const beat=Math.floor(secs%barDuration/beatDuration)+1;const sub=Math.floor(secs%beatDuration/(beatDuration/4))+1;return`${bar}.${beat}.${sub}`;};const getBeatMarkers=(maxDur,bpmVal)=>{const beatDuration=60/bpmVal;const barDuration=beatDuration*4;const markers=[];for(let t=0;t<=maxDur;t+=beatDuration){const isBar=Math.abs(t%barDuration)<0.001||Math.abs(t%barDuration-barDuration)<0.001;markers.push({time:t,isBar,beatNum:Math.floor(t/beatDuration)+1});}return markers;};const findZeroCrossing=(buffer,targetTime)=>{if(!buffer)return targetTime;const sampleRate=buffer.sampleRate;const data=buffer.getChannelData(0);const targetSample=Math.floor(targetTime*sampleRate);const windowSize=Math.floor(0.04*sampleRate);const start=Math.max(0,targetSample-windowSize);const end=Math.min(data.length-2,targetSample+windowSize);let bestSample=targetSample;let minDistance=Infinity;for(let i=start;i<=end;i++){if(data[i]>=0&&data[i+1]<=0||data[i]<=0&&data[i+1]>=0){const dist=Math.abs(i-targetSample);if(dist{const[isDragging,setIsDragging]=useState(false);const startY=useRef(0);const startValue=useRef(0);const rotation=useMemo(()=>{const percent=(value-min)/(max-min);return-135+percent*270;},[value,min,max]);const handleMouseDown=e=>{setIsDragging(true);startY.current=e.clientY;startValue.current=value;document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleMouseMove=e=>{const deltaY=startY.current-e.clientY;const sensitivity=0.005;const newValue=Math.max(min,Math.min(max,startValue.current+deltaY*sensitivity));onChange(parseFloat(newValue.toFixed(2)));};const handleMouseUp=()=>{setIsDragging(false);document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};return/*#__PURE__*/React.createElement("div",{className:"knob-container cursor-ns-resize flex flex-col items-center",onMouseDown:handleMouseDown,title:`Volume: ${Math.round(value*100)}%`},/*#__PURE__*/React.createElement("svg",{className:"w-7 h-7",viewBox:"0 0 40 40"},/*#__PURE__*/React.createElement("circle",{cx:"20",cy:"20",r:"16",fill:"#141414",stroke:"#444",strokeWidth:"2"}),/*#__PURE__*/React.createElement("g",{transform:`rotate(${rotation} 20 20)`,className:"knob-dial"},/*#__PURE__*/React.createElement("line",{x1:"20",y1:"20",x2:"20",y2:"6",stroke:"#ef4444",strokeWidth:"3",strokeLinecap:"round"}))));};const WaveformLane=({track,zoom,timelineWidth,viewportWidth,onSelectRange,onPlayheadSet,isSelected,onSelectTrack,markers,selectionMode,localSelectionTrackId,localSelectionStart,currentTime,getLocalAnchor,onClearLocalSelection,onSetSelectionMode,onSetSelectionStart,onSetSelectionEnd,onSetCurrentTime,onSetLocalSelectionTrackId,onSetLocalSelectionStart,onSetLocalSelectionEnd,localSelLeft,localSelRight,onTrackLaneMouseDown,onContextMenu,onClipDragStart,onClipStretchStart,onSectionItemDragStart,onSectionItemResizeStart,onEditSectionInTab,onEditMidiInTab,onSelectionEdgeDragStart,setSelectedClipId,selectedClipId,activeTool,onSplitTrackAtTime,onEditClipInSubTab,snapValue,bpm,scrollLeft})=>{const canvasRef=useRef(null);const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const vWidth=viewportWidth||1200;const height=canvas.parentElement?canvas.parentElement.clientHeight:96;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle=isSelected?'#2a2a2a':track.id%2===0?'#181818':'#1d1d1d';ctx.fillRect(0,0,drawWidth,height);// Grid lines based on Snap value +let serverFileIdMap={};let audioCtx;function getAudioContext(){if(!audioCtx){audioCtx=new(window.AudioContext||window.webkitAudioContext)();if(window.SonicAudio&&window.SonicAudio.initAudioWorklet){window.SonicAudio.initAudioWorklet();}}if(audioCtx.state==='suspended'){audioCtx.resume();}return audioCtx;}const formatTime=secs=>{if(isNaN(secs)||secs<0)return"0:00.000";const m=Math.floor(secs/60);const s=Math.floor(secs%60);const ms=Math.floor(secs%1*1000).toString().padStart(3,'0');return`${m}:${s.toString().padStart(2,'0')}.${ms}`;};const formatTimeSimple=secs=>{if(isNaN(secs)||secs<0)return"0.00s";return`${secs.toFixed(2)}s`;};const formatBeat=(secs,bpmVal)=>{if(isNaN(secs)||secs<0)return"1.1.1";const beatDuration=60/bpmVal;const barDuration=beatDuration*4;const bar=Math.floor(secs/barDuration)+1;const beat=Math.floor(secs%barDuration/beatDuration)+1;const sub=Math.floor(secs%beatDuration/(beatDuration/4))+1;return`${bar}.${beat}.${sub}`;};const getBeatMarkers=(maxDur,bpmVal)=>{const beatDuration=60/bpmVal;const barDuration=beatDuration*4;const markers=[];for(let t=0;t<=maxDur;t+=beatDuration){const isBar=Math.abs(t%barDuration)<0.001||Math.abs(t%barDuration-barDuration)<0.001;markers.push({time:t,isBar,beatNum:Math.floor(t/beatDuration)+1});}return markers;};const findZeroCrossing=(buffer,targetTime)=>{if(!buffer)return targetTime;const sampleRate=buffer.sampleRate;const data=buffer.getChannelData(0);const targetSample=Math.floor(targetTime*sampleRate);const windowSize=Math.floor(0.04*sampleRate);const start=Math.max(0,targetSample-windowSize);const end=Math.min(data.length-2,targetSample+windowSize);let bestSample=targetSample;let minDistance=Infinity;for(let i=start;i<=end;i++){if(data[i]>=0&&data[i+1]<=0||data[i]<=0&&data[i+1]>=0){const dist=Math.abs(i-targetSample);if(dist { noteId, startBeat, velocity } +this.recordedNotes=[];this.recStartAudioTime=0.0;this.recStartBar=0.0;// Compute round-trip browser latency +this.latencyCompSec=(this.audioCtx.baseLatency||0)+(this.audioCtx.outputLatency||0);}start(startBar=0.0,selectedMidiInputId=null){this.isRecording=true;this.recordedNotes=[];this.activeNotes.clear();this.recStartBar=startBar;this.recStartAudioTime=this.audioCtx.currentTime;this.bindMIDIInputs(selectedMidiInputId);}bindMIDIInputs(selectedMidiInputId=null){if(navigator.requestMIDIAccess){navigator.requestMIDIAccess().then(midiAccess=>{for(let input of midiAccess.inputs.values()){if(selectedMidiInputId&&input.id!==selectedMidiInputId)continue;input.onmidimessage=event=>this.handleMIDIMessage(event);}});}}handleMIDIMessage(event){if(!this.isRecording)return;const[status,pitch,velocity]=event.data;const command=status>>4;// Apply latency compensation formula +const currentTimeSec=Math.max(0,this.audioCtx.currentTime-this.recStartAudioTime-this.latencyCompSec);const secondsPerBeat=60.0/this.bpm;const currentBeat=currentTimeSec/secondsPerBeat+this.recStartBar*this.timeSigNum;// Command 0x9: Note On +if(command===0x9&&velocity>0){const noteId=`rec_${Date.now()}_${pitch}`;this.activeNotes.set(pitch,{id:noteId,pitch:pitch,start_beat:currentBeat,velocity:velocity/127.0});// Fire visual feedback callback +if(this.onNoteOn){this.onNoteOn(pitch,currentBeat);}}// Command 0x8: Note Off (or Note On with velocity = 0) +else if(command===0x8||command===0x9&&velocity===0){if(this.activeNotes.has(pitch)){const note=this.activeNotes.get(pitch);const durationBeats=Math.max(0.125,currentBeat-note.start_beat);// Min 1/32 note +const finishedNote={id:note.id,pitch:note.pitch,start_beat:note.start_beat,duration_beats:durationBeats,velocity:note.velocity,pan:0.0};this.recordedNotes.push(finishedNote);this.activeNotes.delete(pitch);if(this.onNoteOff){this.onNoteOff(pitch,finishedNote);}}}}stop(){this.isRecording=false;// Flush remaining active keypresses when stop is triggered +const currentTimeSec=Math.max(0,this.audioCtx.currentTime-this.recStartAudioTime-this.latencyCompSec);const currentBeat=currentTimeSec/(60.0/this.bpm)+this.recStartBar*this.timeSigNum;for(let[pitch,note]of this.activeNotes.entries()){this.recordedNotes.push({id:note.id,pitch:note.pitch,start_beat:note.start_beat,duration_beats:Math.max(0.25,currentBeat-note.start_beat),velocity:note.velocity,pan:0.0});}this.activeNotes.clear();// Disconnect midi Access callbacks +if(navigator.requestMIDIAccess){navigator.requestMIDIAccess().then(midiAccess=>{for(let input of midiAccess.inputs.values()){input.onmidimessage=null;}});}return this.recordedNotes;}}class ClientAudioRecorder{constructor(audioContext){this.audioCtx=audioContext;this.mediaStream=null;this.sourceNode=null;this.workletNode=null;this.pcmChunks=[];this.isRecording=false;}async initializeInput(deviceId=null){const constraints={audio:{deviceId:deviceId?{exact:deviceId}:undefined,echoCancellation:false,noiseSuppression:false,autoGainControl:false}};this.mediaStream=await navigator.mediaDevices.getUserMedia(constraints);this.sourceNode=this.audioCtx.createMediaStreamSource(this.mediaStream);}async start(destinationTrackGainNode=null,enableMonitoring=true){this.pcmChunks=[];this.isRecording=true;// Load Worklet Processor Module +await this.audioCtx.audioWorklet.addModule('/static/processors/pcm-recorder-processor.js');this.workletNode=new AudioWorkletNode(this.audioCtx,'pcm-recorder-processor');// Receive PCM data streams from AudioWorklet +this.workletNode.port.onmessage=event=>{if(this.isRecording&&event.data.type==='PCM_DATA'){const chunk=new Float32Array(event.data.buffer);this.pcmChunks.push(chunk);// VU Meter Level Callback +if(this.onLevelUpdate){let sum=0;for(let i=0;i0?20*Math.log10(rms):-96;this.onLevelUpdate(db);}// Live visualization Callback +if(this.onPCMChunk){this.onPCMChunk(chunk);}}};// Route Audio Nodes +this.sourceNode.connect(this.workletNode);// Enable Live Input Monitoring if requested +if(enableMonitoring&&destinationTrackGainNode){this.sourceNode.connect(destinationTrackGainNode);}}async stop(){this.isRecording=false;if(this.sourceNode&&this.workletNode){try{this.sourceNode.disconnect(this.workletNode);}catch(e){}}if(this.mediaStream){this.mediaStream.getTracks().forEach(track=>track.stop());}// Concatenate PCM Float32Array chunks into a single AudioBuffer +const totalSamples=this.pcmChunks.reduce((sum,chunk)=>sum+chunk.length,0);if(totalSamples===0)return null;const audioBuffer=this.audioCtx.createBuffer(1,totalSamples,this.audioCtx.sampleRate);const channelData=audioBuffer.getChannelData(0);let offset=0;for(const chunk of this.pcmChunks){channelData.set(chunk,offset);offset+=chunk.length;}return audioBuffer;// Return compiled AudioBuffer for timeline insertion +}}const VolumeKnob=({value,onChange,min=0,max=1})=>{const[isDragging,setIsDragging]=useState(false);const startY=useRef(0);const startValue=useRef(0);const rotation=useMemo(()=>{const percent=(value-min)/(max-min);return-135+percent*270;},[value,min,max]);const handleMouseDown=e=>{setIsDragging(true);startY.current=e.clientY;startValue.current=value;document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleMouseMove=e=>{const deltaY=startY.current-e.clientY;const sensitivity=0.005;const newValue=Math.max(min,Math.min(max,startValue.current+deltaY*sensitivity));onChange(parseFloat(newValue.toFixed(2)));};const handleMouseUp=()=>{setIsDragging(false);document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};return/*#__PURE__*/React.createElement("div",{className:"knob-container cursor-ns-resize flex flex-col items-center",onMouseDown:handleMouseDown,title:`Volume: ${Math.round(value*100)}%`},/*#__PURE__*/React.createElement("svg",{className:"w-7 h-7",viewBox:"0 0 40 40"},/*#__PURE__*/React.createElement("circle",{cx:"20",cy:"20",r:"16",fill:"#141414",stroke:"#444",strokeWidth:"2"}),/*#__PURE__*/React.createElement("g",{transform:`rotate(${rotation} 20 20)`,className:"knob-dial"},/*#__PURE__*/React.createElement("line",{x1:"20",y1:"20",x2:"20",y2:"6",stroke:"#ef4444",strokeWidth:"3",strokeLinecap:"round"}))));};const WaveformLane=({track,zoom,timelineWidth,viewportWidth,onSelectRange,onPlayheadSet,isSelected,onSelectTrack,markers,selectionMode,localSelectionTrackId,localSelectionStart,currentTime,getLocalAnchor,onClearLocalSelection,onSetSelectionMode,onSetSelectionStart,onSetSelectionEnd,onSetCurrentTime,onSetLocalSelectionTrackId,onSetLocalSelectionStart,onSetLocalSelectionEnd,localSelLeft,localSelRight,onTrackLaneMouseDown,onContextMenu,onClipDragStart,onClipStretchStart,onSectionItemDragStart,onSectionItemResizeStart,onEditSectionInTab,onEditMidiInTab,onSelectionEdgeDragStart,setSelectedClipId,selectedClipId,activeTool,onSplitTrackAtTime,onEditClipInSubTab,snapValue,bpm,scrollLeft,recordingState,recTempMidiNotes,recTempAudioBuffer,recStartTimelineTime})=>{const canvasRef=useRef(null);const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const vWidth=viewportWidth||1200;const height=canvas.parentElement?canvas.parentElement.clientHeight:96;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle=isSelected?'#2a2a2a':track.id%2===0?'#181818':'#1d1d1d';ctx.fillRect(0,0,drawWidth,height);// Grid lines based on Snap value ctx.strokeStyle='rgba(255, 255, 255, 0.03)';ctx.lineWidth=1;const tStart=scrollLeft/zoom;const tEnd=(scrollLeft+drawWidth)/zoom;let gridSpacing=1.0;if(snapValue&&snapValue!=='free'){const beatDuration=60/parseFloat(bpm||120);let divisor=1;if(snapValue==='1')divisor=1;else if(snapValue==='1/2')divisor=0.5;else if(snapValue==='1/4')divisor=0.25;else if(snapValue==='1/8')divisor=0.125;else if(snapValue==='1/16')divisor=0.0625;else if(snapValue==='1/32')divisor=0.03125;gridSpacing=beatDuration*divisor;}else{gridSpacing=60/parseFloat(bpm||120);}let drawSpacing=gridSpacing;while(drawSpacing*zoom<10){drawSpacing*=2;}const firstGridStep=Math.floor(tStart/drawSpacing)*drawSpacing;for(let s=firstGridStep;s<=tEnd;s+=drawSpacing){const localX=(s-tStart)*zoom;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();}// Draw waveform lane -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}]:[];if(clips.length>0){clips.forEach(clip=>{const numChannels=clip.buffer.numberOfChannels||1;const dataL=clip.buffer.getChannelData(0);const dataR=numChannels>=2?clip.buffer.getChannelData(1):dataL;const sampleRate=clip.buffer.sampleRate;const totalSamples=dataL.length;const originalDuration=totalSamples/sampleRate;const clipSpeed=clip.speed||1.0;const duration=originalDuration/clipSpeed;const clipStartTime=clip.startTime||0;const clipEndTime=clipStartTime+duration;// Culling: Skip rendering if clip is outside visible viewport window +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}]:[])];if(recordingState==='RECORDING'&&track.isArmed&&track.inputSource?.deviceType==='MICROPHONE'&&recTempAudioBuffer){clips.push({id:'rec_temp_'+track.id,buffer:recTempAudioBuffer,startTime:recStartTimelineTime,name:'[GHI ÂM...]',speed:1.0,isTemp:true});}if(clips.length>0){clips.forEach(clip=>{const numChannels=clip.buffer.numberOfChannels||1;const dataL=clip.buffer.getChannelData(0);const dataR=numChannels>=2?clip.buffer.getChannelData(1):dataL;const sampleRate=clip.buffer.sampleRate;const totalSamples=dataL.length;const originalDuration=totalSamples/sampleRate;const clipSpeed=clip.speed||1.0;const duration=originalDuration/clipSpeed;const clipStartTime=clip.startTime||0;const clipEndTime=clipStartTime+duration;// Culling: Skip rendering if clip is outside visible viewport window if(clipEndTimetEnd)return;const xStartGlobal=clipStartTime*zoom;const wClip=duration*zoom;const xStartLocal=xStartGlobal-scrollLeft;const xEndLocal=xStartLocal+wClip;// 1. Draw Clip Layer Background & Border -const clipIdentifier=clip.id==='default'?'default_'+track.id:clip.id;const isClipSelected=selectedClipId&&selectedClipId.trackId===track.id&&selectedClipId.clipId===clipIdentifier;ctx.fillStyle=isClipSelected?track.color?track.color+'44':'rgba(6, 182, 212, 0.30)':track.color?track.color+'22':'rgba(6, 182, 212, 0.12)';ctx.strokeStyle=isClipSelected?'#fbbf24':track.color||'#06b6d4';ctx.lineWidth=isClipSelected?1:1.5;const clipTop=4;const clipHeight=height-8;ctx.beginPath();if(ctx.roundRect){ctx.roundRect(xStartLocal,clipTop,wClip,clipHeight,4);}else{ctx.rect(xStartLocal,clipTop,wClip,clipHeight);}ctx.fill();ctx.stroke();// 2. Draw Clip Label & Speed Label +const clipIdentifier=clip.id==='default'?'default_'+track.id:clip.id;const isClipSelected=selectedClipId&&selectedClipId.trackId===track.id&&selectedClipId.clipId===clipIdentifier;ctx.fillStyle=clip.isTemp?'rgba(239, 68, 68, 0.25)':isClipSelected?track.color?track.color+'44':'rgba(6, 182, 212, 0.30)':track.color?track.color+'22':'rgba(6, 182, 212, 0.12)';ctx.strokeStyle=clip.isTemp?'#ef4444':isClipSelected?'#fbbf24':track.color||'#06b6d4';ctx.lineWidth=isClipSelected?1:1.5;const clipTop=4;const clipHeight=height-8;ctx.beginPath();if(ctx.roundRect){ctx.roundRect(xStartLocal,clipTop,wClip,clipHeight,4);}else{ctx.rect(xStartLocal,clipTop,wClip,clipHeight);}ctx.fill();ctx.stroke();// 2. Draw Clip Label & Speed Label ctx.fillStyle='#e4e4e7';ctx.font='bold 9px sans-serif';ctx.fillText(clip.name||'Clip',Math.max(xStartLocal+8,8),clipTop+12);if(clipSpeed!==1.0){ctx.fillStyle='#fbbf24';ctx.font='bold 8px sans-serif';ctx.fillText(`Speed: ${(clipSpeed*100).toFixed(1)}%`,Math.max(xStartLocal+8,8),clipTop+22);}// Draw markers if(markers&&markers.length>0){markers.forEach(m=>{const mxLocal=m.time*zoom-scrollLeft;if(mxLocal>=0&&mxLocal<=drawWidth){ctx.fillStyle='#fbbf24';ctx.fillRect(mxLocal-1,0,2,height);}});}// 3. Peak / Vector Waveform Drawing (Sound Forge Dual Stereo Channel Split Match) const drawXStartLocal=Math.max(0,Math.floor(xStartLocal));const drawXEndLocal=Math.min(drawWidth,Math.ceil(xEndLocal));const samplesPerPixel=sampleRate/zoom*clipSpeed;const isStereo=numChannels>=2;const channelConfigs=isStereo?[{data:dataL,mid:height/4,chHeight:height/2-8,label:'1'},{data:dataR,mid:3*height/4,chHeight:height/2-8,label:'2'}]:[{data:dataL,mid:height/2,chHeight:clipHeight-12,label:'MONO'}];if(isStereo){ctx.strokeStyle='rgba(255, 255, 255, 0.12)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(xStartLocal,height/2);ctx.lineTo(xStartLocal+wClip,height/2);ctx.stroke();}channelConfigs.forEach(ch=>{const data=ch.data;const mid=ch.mid;const peakRatio=ch.chHeight*0.42;// Decibel Amplitude Grid Lines (+6.0dB, -Inf, -6.0dB) @@ -18,7 +35,7 @@ const visibleTStart=(drawXStartLocal-xStartLocal)/zoom;const visibleTEnd=(drawXE if(samplesPerPixel<0.3){const maxNodes=5000;const step=Math.max(1,Math.floor((endSample-startSample)/maxNodes));ctx.fillStyle='#6ee7b7';let drawn=0;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 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;ctx.fillStyle='#a78bfa33';ctx.fillRect(midiStartLocal,2,midiWidth,height-4);ctx.strokeStyle='#a78bfa';ctx.lineWidth=1.5;ctx.strokeRect(midiStartLocal,2,midiWidth,height-4);ctx.fillStyle='#c4b5fd';ctx.font='bold 9px sans-serif';ctx.fillText(midi.name||'MIDI',Math.max(midiStartLocal+4,4),14);});// Selection highlight - local selection on this track +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;ctx.fillStyle='#a78bfa33';ctx.fillRect(midiStartLocal,2,midiWidth,height-4);ctx.strokeStyle='#a78bfa';ctx.lineWidth=1.5;ctx.strokeRect(midiStartLocal,2,midiWidth,height-4);ctx.fillStyle='#c4b5fd';ctx.font='bold 9px sans-serif';ctx.fillText(midi.name||'MIDI',Math.max(midiStartLocal+4,4),14);});if(recordingState==='RECORDING'&&track.isArmed&&track.inputSource?.deviceType==='MIDI_KEYBOARD'){const liveMidiDuration=currentTime-recStartTimelineTime;const recStartLocal=recStartTimelineTime*zoom-scrollLeft;const recWidth=liveMidiDuration*zoom;if(recWidth>0&&recStartLocal+recWidth>=0&&recStartLocal<=drawWidth){ctx.fillStyle='rgba(239, 68, 68, 0.2)';ctx.fillRect(recStartLocal,2,recWidth,height-4);ctx.strokeStyle='#ef4444';ctx.lineWidth=1.5;ctx.strokeRect(recStartLocal,2,recWidth,height-4);ctx.fillStyle='#fca5a5';ctx.font='bold 9px sans-serif';ctx.fillText('[GHI MIDI...]',Math.max(recStartLocal+4,4),14);if(recTempMidiNotes&&recTempMidiNotes.length>0){const secondsPerBeat=60.0/(parseInt(bpm)||120);recTempMidiNotes.forEach(note=>{const noteStartSec=note.start_beat*secondsPerBeat;const noteDurSec=note.duration_beats*secondsPerBeat;const nxLocal=noteStartSec*zoom-scrollLeft;const nw=noteDurSec*zoom;const pitchMin=36;const pitchMax=84;const pitchFrac=Math.max(0,Math.min(1,(note.pitch-pitchMin)/(pitchMax-pitchMin)));const ny=6+(1.0-pitchFrac)*(height-18);const nh=3;ctx.fillStyle='#10b981';ctx.fillRect(nxLocal,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]);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 const isLocal=selectionMode==='local'&&localSelectionTrackId===track.id;if(isLocal&&localSelLeft!==null&&localSelRight!==null){const leftPx=localSelLeft*zoom;const rightPx=localSelRight*zoom;const distToLeft=Math.abs(x-leftPx);const distToRight=Math.abs(x-rightPx);if(distToLeft<=5||distToRight<=5){canvasRef.current.style.cursor='ew-resize';return;}}// Check if hovering near right edge of a clip for time-stretching (Alt key required) @@ -105,12 +122,13 @@ ctx.fillStyle='rgba(234, 179, 8, 0.25)';ctx.strokeStyle='#ca8a04';ctx.lineWidth= const vel=note.velocity!==undefined?note.velocity:0.8;const velW=Math.max(2,(w-2)*vel);ctx.fillStyle='#eab308';ctx.fillRect(x+1,y+1,velW,NoteHeight-2);});},[notes,snapVal,rollZoom]);React.useEffect(()=>{const canvas=ccCanvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=80;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);ctx.fillStyle='#161616';ctx.fillRect(0,0,drawWidth,h);ctx.strokeStyle='#252525';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(0,h/2);ctx.lineTo(drawWidth,h/2);ctx.stroke();notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat+note.duration_beats*pixelsPerBeat/2;let val=note.velocity!==undefined?note.velocity:0.8;if(ccMode==='pan'){val=(note.pan!==undefined?note.pan:0.0)*0.5+0.5;}const stemH=val*(h-20)+10;const y=h-stemH;ctx.strokeStyle=ccMode==='pan'?'#a78bfa':'#fbbf24';ctx.lineWidth=2.5;ctx.beginPath();ctx.moveTo(x,h);ctx.lineTo(x,y);ctx.stroke();ctx.fillStyle=ccMode==='pan'?'#c084fc':'#fbbf24';ctx.beginPath();ctx.arc(x,y,3.5,0,2*Math.PI);ctx.fill();});},[notes,ccMode,rollZoom]);React.useEffect(()=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=(127-60)*NoteHeight-150;}},[]);const handleGridMouseDown=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(hoveredResizeIdx!==-1){setDraggedNote({mode:'resize',idx:hoveredResizeIdx,originalStart:notes[hoveredResizeIdx].start_beat});return;}const clickedNoteIdx=notes.findIndex(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat[...prev,newNote]);}}else if(activeRollTool==='eraser'){if(clickedNoteIdx!==-1){setNotes(prev=>prev.filter((_,idx)=>idx!==clickedNoteIdx));}}else if(activeRollTool==='pen'){if(clickedNoteIdx===-1){const start=getSnapBeat(beat,snapVal);const newNote={id:'note_'+Date.now()+Math.random().toString(36).substr(2,5),pitch:pitch,start_beat:start,duration_beats:getSnapDuration(snapVal),velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);}}};const handleGridMouseMove=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(!draggedNote){// Check if mouse is near the right edge of any note let foundIdx=-1;for(let i=0;i=n.start_beat){foundIdx=i;break;}}}if(foundIdx!==-1){canvas.style.cursor='ew-resize';setHoveredResizeIdx(foundIdx);}else{canvas.style.cursor=activeRollTool==='eraser'?'pointer':'crosshair';setHoveredResizeIdx(-1);}return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapVal);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else{const newStart=getSnapBeat(Math.max(0,beat-draggedNote.startOffsetBeat),snapVal);const newPitch=Math.max(0,Math.min(127,pitch));setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,start_beat:newStart,pitch:newPitch};}));}};const handleGridMouseUp=()=>{setDraggedNote(null);};const handleCCMouseDown=e=>{const canvas=ccCanvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const h=rect.height;const beat=x/pixelsPerBeat;// Find note near beat or closest note horizontally let noteIdx=notes.findIndex(n=>beat>=n.start_beat&&beat<=n.start_beat+n.duration_beats);if(noteIdx===-1){let minDistance=Infinity;notes.forEach((n,idx)=>{const center=n.start_beat+n.duration_beats/2;const dist=Math.abs(center-beat);if(distprev.map((n,idx)=>{if(idx!==noteIdx)return n;if(ccMode==='pan'){return{...n,pan:(val-0.5)*2.0};}else{return{...n,velocity:val};}}));}};const renderKeybed=()=>{const keys=[];for(let pitch=127;pitch>=0;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${notesArray[pitch%12]}${octave}`;const showLabel=pitch%12===0;keys.push(/*#__PURE__*/React.createElement("div",{key:pitch,style:{height:`${NoteHeight}px`},className:`w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900':'bg-white text-zinc-800 border-r border-zinc-400'}`},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}};return/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col"},/*#__PURE__*/React.createElement("div",{className:"h-10 bg-[#282828] border-b border-zinc-900 flex items-center justify-between px-4 shrink-0 text-slate-200"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-4"},/*#__PURE__*/React.createElement("span",{className:"text-xs font-bold text-yellow-500 uppercase flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"music",className:"w-3.5 h-3.5"}),st.label),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['select','pen','eraser'].map(tool=>/*#__PURE__*/React.createElement("button",{key:tool,onClick:()=>setActiveRollTool(tool),className:`px-2.5 py-1 rounded capitalize ${activeRollTool===tool?'bg-yellow-600 text-white font-bold':'text-zinc-400 hover:text-zinc-200'}`},tool))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 text-xs"},/*#__PURE__*/React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap:"),/*#__PURE__*/React.createElement("select",{value:snapVal,onChange:e=>setSnapVal(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['free','1','1/2','1/4','1/8','1/16','1/32'].map(v=>/*#__PURE__*/React.createElement("option",{key:v,value:v},v)))),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['velocity','pan'].map(mode=>/*#__PURE__*/React.createElement("button",{key:mode,onClick:()=>setCcMode(mode),className:`px-2.5 py-1 rounded capitalize ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng")),/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative"},/*#__PURE__*/React.createElement("div",{ref:keybedRef,className:"w-[60px] overflow-hidden flex flex-col border-r border-zinc-900 shrink-0",style:{scrollbarWidth:'none',msOverflowStyle:'none'}},renderKeybed()),/*#__PURE__*/React.createElement("div",{ref:gridScrollRef,onScroll:handleScroll,className:"flex-1 overflow-auto bg-[#141414] min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:`${128*NoteHeight}px`},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,onMouseDown:handleGridMouseDown,onMouseMove:handleGridMouseMove,onMouseUp:handleGridMouseUp,onMouseLeave:handleGridMouseUp,className:"absolute inset-0 cursor-crosshair"})))),/*#__PURE__*/React.createElement("div",{className:"h-20 bg-[#161616] border-t border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 flex items-center justify-center text-[10px] text-zinc-500 font-mono shrink-0 font-bold"},ccMode.toUpperCase()),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-x-hidden min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,className:"absolute inset-0 cursor-ns-resize"})))));};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${t.serverFileId}`:"",sample_rate:c.buffer?c.buffer.sampleRate:44100,channels:c.buffer?c.buffer.numberOfChannels:2,gain:1.0}});});}else if(trackType==="MIDI"&&t.midiItems){t.midiItems.forEach(m=>{items.push({id:m.id,name:m.name||"MIDI Item",type:"MIDI_ITEM",start_bar:m.startTime/secondsPerBar,duration_bars:m.duration||4.0,clip_start_offset_bars:0.0,source_data:{total_buffer_bars:m.duration||8.0,notes:(m.notes||[]).map(n=>({id:n.id||'note_'+Math.random().toString(36).substr(2,9),pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))}});});}else if(trackType==="SECTION"&&t.sections){t.sections.forEach(s=>{items.push({id:s.id,name:s.name||"Section Item",type:"SECTION_ITEM",start_bar:s.start/secondsPerBar,duration_bars:s.duration/secondsPerBar,clip_start_offset_bars:0.0,source_data:{referenced_section_id:s.sectionId||s.id}});});}return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,items:items};});const sectionStore={};(sessionTabsList||[]).forEach(st=>{const secTracks=(st.tracks||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,items:[]};});sectionStore[st.sectionId]={id:st.sectionId,name:st.name,is_root:false,length_bars:st.length_bars||16.0,auto_compute_length:st.auto_compute_length!==undefined?st.auto_compute_length:true,tracks:secTracks};});return{project_id:projectId||'proj_'+Date.now(),metadata:{title:name||"Dự án mới",bpm:parseFloat(bpmVal||120),time_signature_numerator:4,time_signature_denominator:4,sample_rate:44100},main_session:{id:"main",name:"MAIN SESSION",is_root:true,length_bars:16.0,auto_compute_length:true,tracks:mainTracks},section_store:sectionStore};};const deserializeProjectFromSchema=schemaObj=>{const bpmVal=schemaObj.metadata?schemaObj.metadata.bpm:120;const secondsPerBar=60.0/bpmVal*4;const restoredTracks=(schemaObj.main_session.tracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};const audioUrl=src.audio_file_url||"";const serverFileId=audioUrl.split("/").pop()||null;clips.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,speed:1.0});}else if(item.type==="MIDI_ITEM"){const src=item.source_data||{};midiItems.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,duration:item.duration_bars,notes:src.notes||[]});}else if(item.type==="SECTION_ITEM"){const src=item.source_data||{};sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:src.referenced_section_id});}});return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,color:t.id==='1'?'#0f766e':'#1d4ed8',markers:[],serverFileId:t.items&&t.items.find(i=>i.type==="AUDIO_ITEM")?.source_data?.audio_file_url?.split("/").pop()||null,clips:clips,sections:sections,midiItems:midiItems};});const restoredSessionTabs=[];const sectionStore=schemaObj.section_store||{};Object.keys(sectionStore).forEach(secId=>{const secContainer=sectionStore[secId];const secTracks=(secContainer.tracks||[]).map(t=>{return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,clips:[],sections:[],midiItems:[]};});restoredSessionTabs.push({id:'session_'+secId,name:secContainer.name,sectionId:secId,tracks:secTracks,length_bars:secContainer.length_bars||16.0,auto_compute_length:secContainer.auto_compute_length});});return{bpm:bpmVal,tracks:restoredTracks,sessionTabs:restoredSessionTabs};};const App=()=>{// ── State Definitions ── -const[tracks,setTracks]=useState([{id:'1',name:'Track 01',buffer:null,startTime:0,height:128,volumeDb:0,pan:0,muted:false,solo:false,color:'#0f766e',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[]},{id:'2',name:'Track 02',buffer:null,startTime:0,height:128,volumeDb:0,pan:0,muted:false,solo:false,color:'#1d4ed8',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[]}]);const[appWarningModal,setAppWarningModal]=useState(null);const[bpm,setBpm]=useState(localStorage.getItem('studio_bpm')||'120');const[draggedClip,setDraggedClip]=useState(null);// { trackId, clickOffset, buffer, name, volume, color } +const[tracks,setTracks]=useState([{id:'1',name:'Track 01',buffer:null,startTime:0,height:128,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,height:128,volumeDb:0,pan:0,muted:false,solo:false,color:'#1d4ed8',markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}}]);const[appWarningModal,setAppWarningModal]=useState(null);const[bpm,setBpm]=useState(localStorage.getItem('studio_bpm')||'120');const[draggedClip,setDraggedClip]=useState(null);// { trackId, clickOffset, buffer, name, volume, color } const[hoveredTrackId,setHoveredTrackId]=useState(null);const openPanel=id=>{if(id==='export')setShowExportPanel(true);else if(id==='ai')setShowAIPanel(true);else if(id==='python_tools')setShowPythonToolsPanel(true);else if(id==='selection')setShowSelectionPanel(true);};const[activeTool,setActiveTool]=useState('select');// 'select' | 'grab' | 'razor' const[snapValue,setSnapValue]=useState('free');// 'free', '1', '1/2', '1/4', '1/8', '1/16', '1/32' 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 const[selectedTrackId,setSelectedTrackId]=useState('1');const[currentTime,setCurrentTime]=useState(0);const[isPlaying,setIsPlaying]=useState(false);const[selectionStart,setSelectionStart]=useState(null);const[selectionEnd,setSelectionEnd]=useState(null);const selectionRef=useRef({start:null,end:null});selectionRef.current={start:selectionStart,end:selectionEnd};const[selectionMode,setSelectionMode]=useState(null);// 'global' (from ruler) | 'local' (from track) -const[localSelectionTrackId,setLocalSelectionTrackId]=useState(null);const[localSelectionStart,setLocalSelectionStart]=useState(null);const[localSelectionEnd,setLocalSelectionEnd]=useState(null);const[zoom,setZoom]=useState(100);const[isLoopingSelection,setIsLoopingSelection]=useState(false);const[beginBar,setBeginBar]=useState(1);const[endBar,setEndBar]=useState(1);const[numberBar,setNumberBar]=useState(1);const[subTabHeight,setSubTabHeight]=useState(96);const[isExporting,setIsExporting]=useState(false);const[projectName,setProjectName]=useState(()=>localStorage.getItem('sonic_project_name')||'');const[currentProjectId,setCurrentProjectId]=useState(()=>localStorage.getItem('sonic_project_id')||null);const[saveProjectModalOpen,setSaveProjectModalOpen]=useState(false);const[saveAsModalOpen,setSaveAsModalOpen]=useState(false);const[soloedTrackId,setSoloedTrackId]=useState(null);const[toastMessage,setToastMessage]=useState(null);const[showAIConfig,setShowAIConfig]=useState(false);const[showExportPanel,setShowExportPanel]=useState(true);const[showAIPanel,setShowAIPanel]=useState(true);const[showSelectionPanel,setShowSelectionPanel]=useState(true);const[showPythonToolsPanel,setShowPythonToolsPanel]=useState(true);const[showMediaExplorer,setShowMediaExplorer]=useState(true);const[showFxRack,setShowFxRack]=useState(false);const[showMidiEvents,setShowMidiEvents]=useState(false);const[rightSidebarWidth,setRightSidebarWidth]=useState(320);const[mediaExplorerHeight,setMediaExplorerHeight]=useState(50);const[panelPositions,setPanelPositions]=useState({export:'bottom',ai:'right',python_tools:'bottom',selection:'bottom',media_explorer:'bottom',fx_rack:'bottom',midi_events:'bottom'});const[panelDropZone,setPanelDropZone]=useState(null);const[dragGhostPos,setDragGhostPos]=useState(null);const[dragGhostPanel,setDragGhostPanel]=useState(null);const panelDragRef=useRef(null);const workspaceRef=useRef(null);const colResizerRef=useRef(null);const rowResizerRef=useRef(null);const[aiConfig,setAiConfig]=useState({baseUrl:localStorage.getItem('ai_base_url')||`${API_BASE_URL}`,apiKey:localStorage.getItem('ai_api_key')||'',model:localStorage.getItem('ai_model')||'deepseek-chat'});const[aiProviders,setAiProviders]=useState([]);useEffect(()=>{(async()=>{try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){/* server may not have config endpoint */}})();},[]);const[analysisState,setAnalysisState]=useState({status:'Sẵn sàng. Chạy AI để phân tích nhịp.',data:null,isRunning:false});const[aiPrompt,setAiPrompt]=useState('');const[promptHistory,setPromptHistory]=useState([]);const[promptHistIdx,setPromptHistIdx]=useState(-1);const promptHistRef=useRef([]);const[aiProvider,setAiProvider]=useState('OpenAI');const[aiModel,setAiModel]=useState('GPT-4o');const[aiActionLog,setAiActionLog]=useState([]);const actionLogContainerRef=useRef(null);useEffect(()=>{if(actionLogContainerRef.current){actionLogContainerRef.current.scrollTop=actionLogContainerRef.current.scrollHeight;}},[aiActionLog]);const[aiProcessing,setAiProcessing]=useState(false);const[selectedProviderId,setSelectedProviderId]=useState('');const[exportSettings,setExportSettings]=useState({sampleRate:'44100',bitDepth:'16',format:'wav',source:'project',quality:'44khz',channels:'stereo'});const[serverStatus,setServerStatus]=useState('checking...');const[menuOpen,setMenuOpen]=useState(null);const[selectedClipId,setSelectedClipId]=useState(null);// { trackId, clipId } +const[localSelectionTrackId,setLocalSelectionTrackId]=useState(null);const[localSelectionStart,setLocalSelectionStart]=useState(null);const[localSelectionEnd,setLocalSelectionEnd]=useState(null);const[zoom,setZoom]=useState(100);const[isLoopingSelection,setIsLoopingSelection]=useState(false);const[beginBar,setBeginBar]=useState(1);const[endBar,setEndBar]=useState(1);const[numberBar,setNumberBar]=useState(1);const[subTabHeight,setSubTabHeight]=useState(96);const[isExporting,setIsExporting]=useState(false);const[projectName,setProjectName]=useState(()=>localStorage.getItem('sonic_project_name')||'');const[currentProjectId,setCurrentProjectId]=useState(()=>localStorage.getItem('sonic_project_id')||null);const[saveProjectModalOpen,setSaveProjectModalOpen]=useState(false);const[saveAsModalOpen,setSaveAsModalOpen]=useState(false);const[soloedTrackId,setSoloedTrackId]=useState(null);const[toastMessage,setToastMessage]=useState(null);const[audioDevices,setAudioDevices]=useState([]);const[midiDevices,setMidiDevices]=useState([]);useEffect(()=>{if(navigator.mediaDevices&&navigator.mediaDevices.enumerateDevices){navigator.mediaDevices.enumerateDevices().then(devices=>{setAudioDevices(devices.filter(d=>d.kind==='audioinput'));}).catch(err=>console.log('Enumerate audio devices error:',err));}if(navigator.requestMIDIAccess){navigator.requestMIDIAccess().then(access=>{const inputs=[];for(let input of access.inputs.values()){inputs.push(input);}setMidiDevices(inputs);access.onstatechange=()=>{const inputs=[];for(let input of access.inputs.values()){inputs.push(input);}setMidiDevices(inputs);};}).catch(err=>console.log('MIDI access error:',err));}},[]);const[showAIConfig,setShowAIConfig]=useState(false);const[recordingState,setRecordingState]=useState('IDLE');// 'IDLE' | 'COUNT_IN' | 'RECORDING' +const[recTempMidiNotes,setRecTempMidiNotes]=useState([]);const[recTempAudioBuffer,setRecTempAudioBuffer]=useState(null);const[recStartTimelineTime,setRecStartTimelineTime]=useState(0);const activeMIDIRecordersRef=useRef({});const activeAudioRecordersRef=useRef({});const recordingPCMDataRef=useRef({});const recordingStartTimeRef=useRef(0);const recordingStateRef=useRef(recordingState);recordingStateRef.current=recordingState;const lastTempCompileTimeRef=useRef(0);const nextMetronomeBeatRef=useRef(0);const[showExportPanel,setShowExportPanel]=useState(true);const[showAIPanel,setShowAIPanel]=useState(true);const[showSelectionPanel,setShowSelectionPanel]=useState(true);const[showPythonToolsPanel,setShowPythonToolsPanel]=useState(true);const[showMediaExplorer,setShowMediaExplorer]=useState(true);const[showFxRack,setShowFxRack]=useState(false);const[showMidiEvents,setShowMidiEvents]=useState(false);const[rightSidebarWidth,setRightSidebarWidth]=useState(320);const[mediaExplorerHeight,setMediaExplorerHeight]=useState(50);const[panelPositions,setPanelPositions]=useState({export:'bottom',ai:'right',python_tools:'bottom',selection:'bottom',media_explorer:'bottom',fx_rack:'bottom',midi_events:'bottom'});const[panelDropZone,setPanelDropZone]=useState(null);const[dragGhostPos,setDragGhostPos]=useState(null);const[dragGhostPanel,setDragGhostPanel]=useState(null);const panelDragRef=useRef(null);const trackVuRefs=useRef({});const workspaceRef=useRef(null);const colResizerRef=useRef(null);const rowResizerRef=useRef(null);const[aiConfig,setAiConfig]=useState({baseUrl:localStorage.getItem('ai_base_url')||`${API_BASE_URL}`,apiKey:localStorage.getItem('ai_api_key')||'',model:localStorage.getItem('ai_model')||'deepseek-chat'});const[aiProviders,setAiProviders]=useState([]);useEffect(()=>{(async()=>{try{const data=await window.SonicAPI.getAIConfigs();if(data&&data.providers){setAiProviders(data.providers);const active=data.providers.find(p=>p.is_active)||data.providers[0];if(active)setSelectedProviderId(active.id);}}catch(e){/* server may not have config endpoint */}})();},[]);const[analysisState,setAnalysisState]=useState({status:'Sẵn sàng. Chạy AI để phân tích nhịp.',data:null,isRunning:false});const[aiPrompt,setAiPrompt]=useState('');const[promptHistory,setPromptHistory]=useState([]);const[promptHistIdx,setPromptHistIdx]=useState(-1);const promptHistRef=useRef([]);const[aiProvider,setAiProvider]=useState('OpenAI');const[aiModel,setAiModel]=useState('GPT-4o');const[aiActionLog,setAiActionLog]=useState([]);const actionLogContainerRef=useRef(null);useEffect(()=>{if(actionLogContainerRef.current){actionLogContainerRef.current.scrollTop=actionLogContainerRef.current.scrollHeight;}},[aiActionLog]);const[aiProcessing,setAiProcessing]=useState(false);const[selectedProviderId,setSelectedProviderId]=useState('');const[exportSettings,setExportSettings]=useState({sampleRate:'44100',bitDepth:'16',format:'wav',source:'project',quality:'44khz',channels:'stereo'});const[serverStatus,setServerStatus]=useState('checking...');const[menuOpen,setMenuOpen]=useState(null);const[selectedClipId,setSelectedClipId]=useState(null);// { trackId, clipId } const[stretchedClip,setStretchedClip]=useState(null);// { trackId, clipId, originalDuration, startTime, originalSpeed, beforeSnap } const[draggedSectionItem,setDraggedSectionItem]=useState(null);const[resizedSectionItem,setResizedSectionItem]=useState(null);const[editingTrackName,setEditingTrackName]=useState(null);// trackId being edited const[editingClipName,setEditingClipName]=useState(null);// { trackId, clipId } @@ -122,7 +140,7 @@ const[undoStack,setUndoStack]=useState([]);const[redoStack,setRedoStack]=useStat buffer:track.buffer,startTime:track.startTime||0,clips:track.clips?track.clips.map(c=>({id:c.id,buffer:c.buffer,startTime:c.startTime,name:c.name})):null};};// ── Tab System (LOOP_EDITOR_2.md §1) ── const[activeTab,setActiveTab]=useState('main');const[subTabSelectedNodeTime,setSubTabSelectedNodeTime]=useState(null);const[subTabNormVal,setSubTabNormVal]=useState(0);const[subTabGainVal,setSubTabGainVal]=useState(100);const[subTabPitchVal,setSubTabPitchVal]=useState(0);const[subTabs,setSubTabs]=useState([]);// [{id, label, trackId, startTime, endTime, buffer, effects, currentTime, selectionStart, selectionEnd, isPlaying}, ...] const[sessionTabs,setSessionTabs]=useState([]);// [{id, name, tracks}, ...] -const activeTracks=useMemo(()=>{const st=sessionTabs.find(s=>s.id===activeTab);return st?st.tracks:tracks;},[activeTab,sessionTabs,tracks]);const[selectionCleared,setSelectionCleared]=useState(false);// LOOP_EDITOR_2.md §4.2 +const activeTracks=useMemo(()=>{const st=sessionTabs.find(s=>s.id===activeTab);return st?st.tracks:tracks;},[activeTab,sessionTabs,tracks]);const activeTracksRef=useRef([]);activeTracksRef.current=activeTracks;const[selectionCleared,setSelectionCleared]=useState(false);// LOOP_EDITOR_2.md §4.2 // ── Temp Edit Tab (LOOP_EDITOR_2.md §1.2 Sub Tab) ── const[tempTabActive,setTempTabActive]=useState(false);const[tempTabBuffer,setTempTabBuffer]=useState(null);const[tempTabTrackId,setTempTabTrackId]=useState(null);const[tempTabOrigStart,setTempTabOrigStart]=useState(0);const[tempTabOrigEnd,setTempTabOrigEnd]=useState(0);const tempTabCanvasRef=useRef(null);// Effect parameters for temp tab const[tempTabEffects,setTempTabEffects]=useState({reverse:false,gainDb:0,fadeInMs:0,fadeOutMs:0});// ── Auth / User State ── @@ -183,7 +201,12 @@ const startSubTabPlayback=(st,offsetWallTime)=>{const context=getAudioContext(); const volumeGainNode=context.createGain();volumeGainNode.gain.setValueAtTime(1.0,context.currentTime);const pannerNode=context.createStereoPanner();pannerNode.pan.setValueAtTime(0.0,context.currentTime);const fadeGainNode=context.createGain();fadeGainNode.gain.setValueAtTime(1.0,context.currentTime);// Schedule volume automation nodes const volNodes=st.volumeNodes||[];if(volNodes.length>0){volumeGainNode.gain.cancelScheduledValues(context.currentTime);volNodes.forEach((n,i)=>{const t=context.currentTime+n.time/speed;const linearGain=Math.pow(10,n.db/20);if(i===0)volumeGainNode.gain.setValueAtTime(linearGain,t);else volumeGainNode.gain.linearRampToValueAtTime(linearGain,t);});}// Schedule panning automation nodes const panNodes=st.panningNodes||[];if(panNodes.length>0){pannerNode.pan.cancelScheduledValues(context.currentTime);panNodes.forEach((n,i)=>{const t=context.currentTime+n.time/speed;const clamped=Math.max(-1,Math.min(1,n.pan));if(i===0)pannerNode.pan.setValueAtTime(clamped,t);else pannerNode.pan.linearRampToValueAtTime(clamped,t);});}// Schedule fade curves -const duration=st.buffer.duration;const fIn=st.fadeInLen||0;const fOut=st.fadeOutLen||0;if(fIn>0){fadeGainNode.gain.setValueAtTime(0.0,context.currentTime);fadeGainNode.gain.linearRampToValueAtTime(1.0,context.currentTime+fIn/speed);}if(fOut>0){const fadeOutStart=(duration-fOut)/speed;fadeGainNode.gain.setValueAtTime(1.0,context.currentTime+Math.max(0,fadeOutStart));fadeGainNode.gain.linearRampToValueAtTime(0.0,context.currentTime+duration/speed);}source.connect(volumeGainNode);volumeGainNode.connect(pannerNode);pannerNode.connect(fadeGainNode);fadeGainNode.connect(context.destination);source.start(context.currentTime,offsetBuffer);activeSourcesRef.current=[source];activeTrackNodesRef.current[st.trackId]={gainNode:volumeGainNode,pannerNode,source};startOffsetTimeRef.current=offsetWallTime;startBufferOffsetRef.current=offsetBuffer;startAudioTimeRef.current=context.currentTime;};const updatePlayhead=()=>{if(activeTabRef.current!=='main'){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) +const duration=st.buffer.duration;const fIn=st.fadeInLen||0;const fOut=st.fadeOutLen||0;if(fIn>0){fadeGainNode.gain.setValueAtTime(0.0,context.currentTime);fadeGainNode.gain.linearRampToValueAtTime(1.0,context.currentTime+fIn/speed);}if(fOut>0){const fadeOutStart=(duration-fOut)/speed;fadeGainNode.gain.setValueAtTime(1.0,context.currentTime+Math.max(0,fadeOutStart));fadeGainNode.gain.linearRampToValueAtTime(0.0,context.currentTime+duration/speed);}source.connect(volumeGainNode);volumeGainNode.connect(pannerNode);pannerNode.connect(fadeGainNode);fadeGainNode.connect(context.destination);source.start(context.currentTime,offsetBuffer);activeSourcesRef.current=[source];activeTrackNodesRef.current[st.trackId]={gainNode:volumeGainNode,pannerNode,source};startOffsetTimeRef.current=offsetWallTime;startBufferOffsetRef.current=offsetBuffer;startAudioTimeRef.current=context.currentTime;};const playMetronomeClick=(time,isDownbeat=false)=>{try{const ctx=getAudioContext();const osc=ctx.createOscillator();const gainNode=ctx.createGain();osc.connect(gainNode);gainNode.connect(ctx.destination);osc.frequency.setValueAtTime(isDownbeat?1000:800,time);gainNode.gain.setValueAtTime(0.08,time);gainNode.gain.exponentialRampToValueAtTime(0.001,time+0.08);osc.start(time);osc.stop(time+0.1);}catch(e){console.log('Metronome click play error:',e);}};const updatePlayhead=()=>{if(recordingStateRef.current==='RECORDING'){const audioCtx=getAudioContext();const lookahead=0.1;// 100ms +const secondsPerBeat=60.0/(parseInt(bpmRef.current)||120);// Metronome Click Scheduler +while(true){const beatNum=nextMetronomeBeatRef.current;const elapsedBeats=beatNum-recordingStartTimeRef.current/secondsPerBeat;const beatTime=startAudioTimeRef.current+elapsedBeats*secondsPerBeat;if(beatTime200){lastTempCompileTimeRef.current=now;// Audio preview +for(let trackId in recordingPCMDataRef.current){const data=recordingPCMDataRef.current[trackId];if(data&&data.length>0){const tempBuf=audioCtx.createBuffer(1,data.length,audioCtx.sampleRate);tempBuf.getChannelData(0).set(data);setRecTempAudioBuffer(tempBuf);}}// MIDI preview +const armedTracks=activeTracksRef.current.filter(t=>t.isArmed);for(let track of armedTracks){const midiRec=activeMIDIRecordersRef.current[track.id];if(midiRec){const currentBeat=(audioCtx.currentTime-midiRec.recStartAudioTime-midiRec.latencyCompSec)/secondsPerBeat+midiRec.recStartBar*4;setRecTempMidiNotes([...midiRec.recordedNotes,...Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}))]);}}}}if(activeTabRef.current!=='main'){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;}}if(bufferPos>=st.buffer.duration){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(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 ── @@ -191,7 +214,7 @@ const startTrackPlayback=offsetTime=>{const context=getAudioContext();const hasS 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);activeTrackNodesRef.current[track.id]={gainNode,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);gainNode.connect(pannerNode);const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime{const context=getAudioContext();const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];// Create persistent gain & panner for real-time control 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);activeTrackNodesRef.current[trackId]={gainNode,pannerNode};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);gainNode.connect(pannerNode);const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(offsetTime{if(activeTab!=='main'){// Sub-tab playback transport -const st=subTabs.find(s=>s.id===activeTab);if(!st||!st.buffer)return;if(st.isPlaying){stopAllPlayback();setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,isPlaying:false}:s));}else{stopAllPlayback();const startOffset=st.currentTime||0;startSubTabPlayback(st,startOffset);setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,isPlaying:true,currentTime:startOffset}:s));}return;}const context=getAudioContext();if(isPlaying){stopAllPlayback();}else{startOffsetTimeRef.current=currentTime;startAudioTimeRef.current=context.currentTime;startTrackPlayback(currentTime);setIsPlaying(true);}};handlePlayPauseRef.current=handlePlayPause;const handlePause=()=>{if(isPlaying||subTabs.some(s=>s.isPlaying))stopAllPlayback();};const stopAllPlayback=()=>{activeSourcesRef.current.forEach(src=>{try{src.stop();}catch(e){}});activeSourcesRef.current=[];activeTrackNodesRef.current={};setIsPlaying(false);setSubTabs(prev=>prev.map(s=>({...s,isPlaying:false})));};const handleStop=()=>{stopAllPlayback();if(activeTab!=='main'){setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,currentTime:0}:s));}else{setCurrentTime(0);}};const handleSubTabResizeMouseDown=e=>{e.preventDefault();e.stopPropagation();const startY=e.clientY;const startHeight=subTabHeight;const handleMouseMove=moveEvent=>{const deltaY=moveEvent.clientY-startY;const newHeight=Math.max(48,Math.min(400,startHeight+deltaY));setSubTabHeight(newHeight);};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};// ── Playhead set with seek+play ── +const st=subTabs.find(s=>s.id===activeTab);if(!st||!st.buffer)return;if(st.isPlaying){stopAllPlayback();setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,isPlaying:false}:s));}else{stopAllPlayback();const startOffset=st.currentTime||0;startSubTabPlayback(st,startOffset);setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,isPlaying:true,currentTime:startOffset}:s));}return;}const context=getAudioContext();if(isPlaying){stopAllPlayback();}else{startOffsetTimeRef.current=currentTime;startAudioTimeRef.current=context.currentTime;startTrackPlayback(currentTime);setIsPlaying(true);}};handlePlayPauseRef.current=handlePlayPause;const handlePause=()=>{if(isPlaying||subTabs.some(s=>s.isPlaying))stopAllPlayback();};const stopAllPlayback=()=>{activeSourcesRef.current.forEach(src=>{try{src.stop();}catch(e){}});activeSourcesRef.current=[];activeTrackNodesRef.current={};setIsPlaying(false);setSubTabs(prev=>prev.map(s=>({...s,isPlaying:false})));};const handleStop=()=>{if(recordingStateRef.current==='RECORDING'||recordingStateRef.current==='COUNT_IN'){stopRecordingTake();return;}stopAllPlayback();if(activeTab!=='main'){setSubTabs(prev=>prev.map(s=>s.id===activeTab?{...s,currentTime:0}:s));}else{setCurrentTime(0);}};const drawVuMeter=(canvas,db)=>{if(!canvas)return;const ctx=canvas.getContext('2d');if(!ctx)return;const w=canvas.width;const h=canvas.height;ctx.clearRect(0,0,w,h);const minDb=-60;const maxDb=0;const frac=Math.max(0,Math.min(1,(db-minDb)/(maxDb-minDb)));ctx.fillStyle='#18181b';ctx.fillRect(0,0,w,h);const grad=ctx.createLinearGradient(0,0,w,0);grad.addColorStop(0,'#10b981');grad.addColorStop(0.7,'#eab308');grad.addColorStop(0.95,'#ef4444');ctx.fillStyle=grad;ctx.fillRect(0,0,w*frac,h);if(db>=-0.5){ctx.fillStyle='#ff0000';ctx.fillRect(w-6,0,6,h);}};const handleRecordClick=async()=>{if(recordingState==='RECORDING'||recordingState==='COUNT_IN'){await stopRecordingTake();return;}const armed=activeTracks.filter(t=>t.isArmed&&t.inputSource?.deviceType&&t.inputSource.deviceType!=='NONE');if(armed.length===0){showToast('Vui lòng Arm (R) ít nhất một track và chọn cổng Input để ghi âm.','warning');return;}setRecordingState('COUNT_IN');const secondsPerBeat=60.0/(parseInt(bpm)||120);const countInDuration=secondsPerBeat*4;const audioCtx=getAudioContext();const now=audioCtx.currentTime;showToast('Metronome Count-in: 4... 3... 2... 1...','info');for(let i=0;i<4;i++){playMetronomeClick(now+i*secondsPerBeat,i===0);}setTimeout(()=>{startRecordingTake(armed);},countInDuration*1000);};const startRecordingTake=async armedTracks=>{const context=getAudioContext();if(context.state==='suspended'){await context.resume();}setRecordingState('RECORDING');setRecTempMidiNotes([]);setRecTempAudioBuffer(null);const startTimelineTime=currentTime;setRecStartTimelineTime(startTimelineTime);recordingStartTimeRef.current=startTimelineTime;const secondsPerBeat=60.0/(parseInt(bpm)||120);const startBeat=startTimelineTime/secondsPerBeat;nextMetronomeBeatRef.current=Math.ceil(startBeat);activeMIDIRecordersRef.current={};activeAudioRecordersRef.current={};recordingPCMDataRef.current={};startOffsetTimeRef.current=startTimelineTime;startAudioTimeRef.current=context.currentTime;startTrackPlayback(startTimelineTime);setIsPlaying(true);for(let track of armedTracks){if(track.inputSource.deviceType==='MIDI_KEYBOARD'){const midiRec=new ClientMIDIRecorder(context,parseInt(bpm)||120,4);midiRec.onNoteOn=(pitch,currentBeat)=>{const canvas=trackVuRefs.current[track.id];if(canvas){drawVuMeter(canvas,0);setTimeout(()=>drawVuMeter(canvas,-60),100);}setRecTempMidiNotes([...midiRec.recordedNotes,...Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}))]);};midiRec.onNoteOff=()=>{const currentBeat=(context.currentTime-midiRec.recStartAudioTime-midiRec.latencyCompSec)/(60.0/midiRec.bpm)+midiRec.recStartBar*4;setRecTempMidiNotes([...midiRec.recordedNotes,...Array.from(midiRec.activeNotes.values()).map(n=>({...n,duration_beats:currentBeat-n.start_beat}))]);};midiRec.start(startTimelineTime/(secondsPerBeat*4),track.inputSource.deviceId);activeMIDIRecordersRef.current[track.id]=midiRec;}else if(track.inputSource.deviceType==='MICROPHONE'){const audioRec=new ClientAudioRecorder(context);try{await audioRec.initializeInput(track.inputSource.deviceId);recordingPCMDataRef.current[track.id]=[];audioRec.onLevelUpdate=db=>{const canvas=trackVuRefs.current[track.id];if(canvas){drawVuMeter(canvas,db);}};audioRec.onPCMChunk=chunk=>{if(recordingPCMDataRef.current[track.id]){const currentData=recordingPCMDataRef.current[track.id];const newData=new Float32Array(currentData.length+chunk.length);newData.set(currentData);newData.set(chunk,currentData.length);recordingPCMDataRef.current[track.id]=newData;}};const monitorGain=track.monitoringEnabled?context.destination:null;await audioRec.start(monitorGain,track.monitoringEnabled);activeAudioRecordersRef.current[track.id]=audioRec;}catch(err){console.error('Failed to initialize microphone:',err);showToast('Không khởi động được micro: '+err.message,'warning');}}}showToast('Đang ghi âm...','info');};const stopRecordingTake=async()=>{setRecordingState('IDLE');stopAllPlayback();const context=getAudioContext();const secondsPerBeat=60.0/(parseInt(bpm)||120);const midiRecorders=activeMIDIRecordersRef.current;const audioRecorders=activeAudioRecordersRef.current;Object.keys(trackVuRefs.current).forEach(tid=>{const canvas=trackVuRefs.current[tid];if(canvas)drawVuMeter(canvas,-60);});let hasRecordedAnything=false;for(let trackId in midiRecorders){const midiRec=midiRecorders[trackId];const recordedNotes=midiRec.stop();if(recordedNotes.length>0){hasRecordedAnything=true;const totalDurationBeats=Math.max(4.0,...recordedNotes.map(n=>n.start_beat+n.duration_beats));const newMidiItem={id:'midi_rec_'+Date.now(),name:'Recorded MIDI',startTime:recordingStartTimeRef.current,duration:Math.ceil(totalDurationBeats/4),notes:recordedNotes};updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,midiItems:[...(t.midiItems||[]),newMidiItem]};}));}}for(let trackId in audioRecorders){const audioRec=audioRecorders[trackId];const audioBuffer=await audioRec.stop();if(audioBuffer&&audioBuffer.duration>0.05){hasRecordedAnything=true;const newClip={id:'clip_rec_'+Date.now(),name:'Recorded Audio.wav',buffer:audioBuffer,startTime:recordingStartTimeRef.current,speed:1.0};updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const updatedClips=[...(t.clips||[]),newClip];return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer||null,startTime:updatedClips[0]?.startTime||0,name:updatedClips[0]?.name||t.name};}));}}activeMIDIRecordersRef.current={};activeAudioRecordersRef.current={};recordingPCMDataRef.current={};setRecTempMidiNotes([]);setRecTempAudioBuffer(null);if(hasRecordedAnything){showToast('Đã thu và lưu bản ghi vào timeline.','success');}else{showToast('Đã dừng ghi âm (không phát hiện tín hiệu đầu vào).','info');}};const handleSubTabResizeMouseDown=e=>{e.preventDefault();e.stopPropagation();const startY=e.clientY;const startHeight=subTabHeight;const handleMouseMove=moveEvent=>{const deltaY=moveEvent.clientY-startY;const newHeight=Math.max(48,Math.min(400,startHeight+deltaY));setSubTabHeight(newHeight);};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};// ── Playhead set with seek+play ── const handlePlayheadSet=(time,shiftKey)=>{localSelectionAnchorRef.current=time;if(isPlaying){// Click during playback: seek to position and continue playing setCurrentTime(time);stopAllPlayback();setTimeout(()=>{startOffsetTimeRef.current=time;startAudioTimeRef.current=getAudioContext().currentTime;startTrackPlayback(time);setIsPlaying(true);},50);}else{// Normal click: just set playhead setCurrentTime(time);}};const clearLocalSelection=()=>{setSelectionMode(null);setLocalSelectionTrackId(null);setLocalSelectionStart(null);setLocalSelectionEnd(null);};const handleRulerMouseDown=e=>{if(e.ctrlKey){e.preventDefault();e.stopPropagation();clearLocalSelection();setSelectionMode(null);setSelectionStart(null);setSelectionEnd(null);return;}const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const rawTime=mouseX/zoom;const time=snapValue!=='free'?snapTime(rawTime,snapValue,bpm):rawTime;clearLocalSelection();setSelectionMode('global');rulerDragStartRef.current=time;isDraggingRulerRef.current=true;if(e.shiftKey){e.preventDefault();e.stopPropagation();// Shift+click on ruler: lock existing anchor (or currentTime fallback) and extend global selection @@ -216,8 +239,8 @@ const loadFileOnTrack=async(trackId,file)=>{if(!file)return;showToast(`Đang n uploadToServer(file,trackId);// Decode locally for playback + analyze channels (stereo/mono) const{audioBuffer:decodedBuffer,channelInfo}=await window.SonicAudio.decodeAudioFile(file);setTracks(prev=>prev.map(t=>t.id===trackId?{...t,name:file.name,buffer:decodedBuffer,channelInfo:channelInfo}:t));showToast(`Nạp file thành công: ${file.name} (${channelInfo.label})`,'success');}catch(err){showToast("Lỗi giải mã âm thanh. Định dạng file không tương thích.",'error');}};// ── Synth Generators ── const generateSynthToTrack=(trackId,type)=>{const sampleRate=44100;const duration=12.0;const context=getAudioContext();const frameCount=sampleRate*duration;const newBuffer=context.createBuffer(1,frameCount,sampleRate);const channelData=newBuffer.getChannelData(0);if(type==='kick'){for(let i=0;iprev.map(t=>t.id===trackId?{...t,name:`Demo_${type.toUpperCase()}.wav`,buffer:newBuffer}:t));showToast(`Đã nạp sóng âm tổng hợp: ${type.toUpperCase()}`,'success');};// ── Add Track ── -const addNewTrack=()=>{const curTracks=activeTracks;const newId=(curTracks.length+1).toString();const colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309'];const selectColor=colors[curTracks.length%colors.length];updateActiveTracks(prev=>[...prev,{id:newId,name:`Track ${newId}`,buffer:null,startTime:0,height:128,volumeDb:0,pan:0,muted:false,solo:false,color:selectColor,markers:[],serverFileId:null,clips:[],sections:[],midiItems:[]}]);showToast(`Đã thêm Track ${newId}.`,'info');setTimeout(()=>lucide.createIcons(),200);return newId;};// ── Update tracks in active context (main session or section tab) ── -const updateActiveTracks=updater=>{const sessionTab=sessionTabs.find(s=>s.id===activeTab);if(sessionTab){setSessionTabs(prev=>prev.map(st=>st.id===activeTab?{...st,tracks:updater(st.tracks)}:st));}else{setTracks(updater);}};// ── Insert Track Below Selected ── +const addNewTrack=()=>{const curTracks=activeTracks;const newId=(curTracks.length+1).toString();const colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309'];const selectColor=colors[curTracks.length%colors.length];updateActiveTracks(prev=>[...prev,{id:newId,name:`Track ${newId}`,buffer:null,startTime:0,height:128,volumeDb:0,pan:0,muted:false,solo:false,color:selectColor,markers:[],serverFileId:null,clips:[],sections:[],midiItems:[],isArmed:false,monitoringEnabled:true,inputSource:{deviceType:'NONE',deviceId:''}}]);showToast(`Đã thêm Track ${newId}.`,'info');setTimeout(()=>lucide.createIcons(),200);return newId;};// ── Update tracks in active context (main session or section tab) ── +const updateActiveTracks=updater=>{const sessionTab=sessionTabs.find(s=>s.id===activeTab);if(sessionTab){setSessionTabs(prev=>prev.map(st=>st.id===activeTab?{...st,tracks:updater(st.tracks)}:st));}else{setTracks(updater);}};const toggleTrackArm=trackId=>{updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,isArmed:!t.isArmed};}));};const toggleTrackMonitor=trackId=>{updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,monitoringEnabled:!t.monitoringEnabled};}));};const updateTrackInputSource=(trackId,type,deviceId)=>{updateActiveTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,inputSource:{deviceType:type,deviceId}};}));};// ── Insert Track Below Selected ── const insertTrackBelow=()=>{const curTracks=activeTracks;const newId=`t${Date.now()}`;const colors=['#0f766e','#1d4ed8','#701a75','#a21caf','#b45309'];const selectColor=colors[curTracks.length%colors.length];const newTrack={id:newId,name:`Track ${newId}`,buffer:null,startTime:0,height:128,volumeDb:0,pan:0,muted:false,solo:false,color:selectColor,markers:[],serverFileId:null,clips:[],sections:[],midiItems:[]};updateActiveTracks(prev=>{const idx=prev.findIndex(t=>t.id===selectedTrackId);if(idx===-1)return[...prev,newTrack];const copy=[...prev];copy.splice(idx+1,0,newTrack);return copy;});setSelectedTrackId(newId);showToast(`Đã thêm Track ${newId}.`,'info');setTimeout(()=>lucide.createIcons(),200);};// ── Insert Section at Playhead ── const insertSectionAtPlayhead=()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track){showToast('Chọn track trước','warning');return;}const section={id:`sec_${Date.now()}`,name:'Section',start:currentTime,duration:4,color:track.color||'#06b6d4'};setTracks(prev=>prev.map(t=>t.id===selectedTrackId?{...t,sections:[...(t.sections||[]),section]}:t));showToast(`Đã thêm Section tại ${currentTime.toFixed(2)}s`,'success');};// ── Insert MIDI Item at Playhead ── const insertMidiItemAtPlayhead=()=>{const curTracks=activeTracks;const track=curTracks.find(t=>t.id===selectedTrackId);if(!track){showToast('Chọn track trước','warning');return;}const midiItem={id:`midi_${Date.now()}`,name:'MIDI Item',startTime:currentTime,duration:4,notes:[],color:'#a78bfa'};updateActiveTracks(prev=>prev.map(t=>t.id===selectedTrackId?{...t,midiItems:[...(t.midiItems||[]),midiItem]}:t));showToast(`Đã thêm MIDI item tại ${currentTime.toFixed(2)}s`,'success');};// ── Insert Sound Clip at Cursor ── @@ -263,5 +286,5 @@ const handleSplitTrackAtTime=(trackId,clipId,time)=>{const track=tracks.find(t=> const handleGlueTracks=()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track){showToast('Vui lòng chọn một track để thực hiện gộp (glue).','warning');return;}const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length<2){showToast('Cần ít nhất 2 clip trên track này để gộp (glue).','warning');return;}const beforeSnap=captureTrackSnapshot(track.id);const ctx=getAudioContext();const sr=clips[0].buffer.sampleRate;let minStart=Infinity;let maxEnd=-Infinity;clips.forEach(c=>{const start=c.startTime||0;const end=start+c.buffer.duration;minStart=Math.min(minStart,start);maxEnd=Math.max(maxEnd,end);});const newDur=maxEnd-minStart;const newBuffer=ctx.createBuffer(1,Math.ceil(newDur*sr),sr);const newData=newBuffer.getChannelData(0);clips.forEach(c=>{const data=c.buffer.getChannelData(0);const offset=Math.floor(((c.startTime||0)-minStart)*sr);for(let i=0;imaxPeak)maxPeak=abs;}if(maxPeak>1.0){for(let i=0;iprev.map(t=>{if(t.id===track.id){return{...t,clips:[mergedClip],buffer:newBuffer,startTime:minStart,name:mergedClip.name};}return t;}));setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('GLUE',track.id,beforeSnap,afterSnap);},50);showToast(`Đã gộp ${clips.length} clips thành công.`,'success');};// ── DAW Command Registration for AI (28_AI_PANEL.md §1 & §2) ── useEffect(()=>{if(typeof window.DAWCommandDispatcher==='undefined')return;const api={createTrack:args=>{const name=args.name||`AI_Track_${Date.now()}`;const type=args.type||'audio';const newId=addNewTrack();if(name&&name!==`AI_Track_${Date.now()}`){updateTrackName(newId,name);}return{success:true,trackId:newId,name};},deleteTrack:args=>{const tid=args.track_id||selectedTrackId;if(!tid)return{success:false,error:'No track_id provided'};deleteTrack(tid);return{success:true,trackId:tid};},addClip:args=>{const trackId=args.track_id||selectedTrackId;const barDur=60/parseInt(bpm||120)*4;let startTime;if(args.start_time!==undefined&&args.start_time!==null)startTime=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)startTime=args.start_bar*barDur;else startTime=currentTime;const track=tracks.find(t=>t.id===trackId);if(!track)return{success:false,error:'Track not found'};const ctx=getAudioContext();const sr=44100;let duration;if(args.duration_seconds!==undefined&&args.duration_seconds!==null)duration=args.duration_seconds;else if(args.length_bars!==undefined&&args.length_bars!==null)duration=args.length_bars*barDur;else duration=2;const buffer=ctx.createBuffer(1,Math.floor(sr*duration),sr);const data=buffer.getChannelData(0);for(let i=0;iprev.map(t=>{if(t.id!==trackId)return t;const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];return{...t,clips:[...clips,{id:clipId,buffer,startTime,name:args.name||'AI Clip'}],buffer:clips.length>0?clips[0].buffer:buffer,startTime:clips.length>0?clips[0].startTime:startTime,name:clips.length>0?clips[0].name:args.name||t.name};}));return{success:true,clipId,trackId};},removeClip:args=>{const trackId=args.track_id||selectedTrackId;const clipId=args.clip_id;setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const updatedClips=(t.clips||[]).filter(c=>c.id!==clipId);return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer||null,startTime:updatedClips[0]?.startTime||0,name:updatedClips[0]?.name||t.name};}));return{success:true};},setTrackVolume:args=>{const trackId=args.track_id||selectedTrackId;const vol=args.volume_db??args.volume??0;updateTrackVolumeDb(trackId,parseFloat(vol));return{success:true,trackId,volumeDb:vol};},setTrackPan:args=>{const trackId=args.track_id||selectedTrackId;const pan=args.pan??0;updateTrackPan(trackId,parseInt(pan));return{success:true,trackId,pan};},toggleMute:args=>{const trackId=args.track_id||selectedTrackId;toggleTrackMute(trackId);const track=tracks.find(t=>t.id===trackId);return{success:true,trackId,muted:track?track.muted:null};},toggleSolo:args=>{const trackId=args.track_id||selectedTrackId;toggleTrackSoloEvaluate(trackId);const track=tracks.find(t=>t.id===trackId);return{success:true,trackId,solo:track?track.solo:null};},processAudioDsp:args=>{const trackId=args.track_id||selectedTrackId;const action=args.action;const params=args.params||{};const track=tracks.find(t=>t.id===trackId);if(!track||!track.buffer)return{success:false,error:'Track has no audio buffer'};if(action==='normalize'){const channelData=track.buffer.getChannelData(0);let maxVal=0;for(let i=0;i0){const gain=1.0/maxVal;for(let i=0;i{const newLen=Math.round(data.length*r);const out=new Float32Array(newLen);for(let i=0;iprev.map(t=>t.id===trackId?{...t,buffer:newBuffer}:t));return{success:true,action:'pitch_shift',semitones};}return{success:false,error:`Unknown action: ${action}`};},renameTrack:args=>{const tid=args.track_id||selectedTrackId;const name=args.name;if(!tid)return{success:false,error:'No track_id provided'};if(!name)return{success:false,error:'No name provided'};updateTrackName(tid,name);return{success:true,trackId:tid,name};},setSelection:args=>{const barDur=60/parseInt(bpm||120)*4;let start,end;if(args.start_time!==undefined&&args.start_time!==null)start=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)start=args.start_bar*barDur;else start=currentTime;if(args.end_time!==undefined&&args.end_time!==null)end=args.end_time;else if(args.length_bars!==undefined&&args.length_bars!==null)end=start+args.length_bars*barDur;else if(args.end_bar!==undefined&&args.end_bar!==null)end=args.end_bar*barDur;else end=start+barDur;clearLocalSelection();setSelectionMode('global');setSelectionStart(start);setSelectionEnd(end);selectionRef.current={start,end};return{success:true,start:parseFloat(start.toFixed(3)),end:parseFloat(end.toFixed(3)),length:parseFloat((end-start).toFixed(3))};},cutAudio:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;const tid=args.track_id||currentSelTrackId;const track=currentTracks.find(t=>t.id===String(tid));if(!track)return{success:false,error:'Track not found'};if(!track.buffer)return{success:false,error:'Track has no audio buffer'};const barDur=60/parseInt(bpm||120)*4;const sel=selectionRef.current;let rawStart,rawEnd;if(args.start_time!==undefined&&args.start_time!==null)rawStart=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)rawStart=args.start_bar*barDur;else if(sel.start!==null)rawStart=sel.start;else rawStart=currentTime;if(args.end_time!==undefined&&args.end_time!==null)rawEnd=args.end_time;else if(args.end_bar!==undefined&&args.end_bar!==null)rawEnd=args.end_bar*barDur;else if(args.length_bars!==undefined&&args.length_bars!==null)rawEnd=rawStart+args.length_bars*barDur;else if(sel.end!==null&&sel.end>rawStart)rawEnd=sel.end;else return{success:false,error:'No end position provided. Provide end_time, end_bar, or length_bars.'};if(rawEnd<=rawStart)return{success:false,error:'End position must be after start position.'};const buffer=track.buffer;const ctx=getAudioContext();const snap=args.snap_silence!==false;const loopStart=snap?findZeroCrossing(buffer,rawStart):rawStart;const loopEnd=snap?findZeroCrossing(buffer,rawEnd):rawEnd;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(loopStart*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(loopEnd*sampleRate)));const sliceLength=endSample-startSample;if(sliceLength<=100)return{success:false,error:'Selection too short or invalid'};const numChannels=buffer.numberOfChannels||1;const slicedBuffer=ctx.createBuffer(numChannels,sliceLength,sampleRate);for(let c=0;ct.id===tid);const nextTracks=[...currentTracks];if(idx!==-1){nextTracks.splice(idx+1,0,newTrack);}else{nextTracks.push(newTrack);}if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;window.DAWCommandDispatcher.currentSelectedTrackId=newId;window.DAWCommandDispatcher.lastCutSourceTrackId=tid;window.DAWCommandDispatcher.lastCutNewTrackId=newId;}setTracks(nextTracks);setSelectedTrackId(newId);selectionRef.current={start:0,end:slicedBuffer.duration};clearLocalSelection();setSelectionMode('global');setSelectionStart(0);setSelectionEnd(slicedBuffer.duration);setTimeout(()=>lucide.createIcons(),200);return{success:true,trackId:newId,trackName:cutName,cutStart:parseFloat(loopStart.toFixed(3)),cutEnd:parseFloat(loopEnd.toFixed(3)),duration:parseFloat(slicedBuffer.duration.toFixed(3))};},scanTrack:args=>{const tid=args.track_id||selectedTrackId;const track=tracks.find(t=>t.id===tid);if(!track)return{success:false,error:'Track not found'};if(!track.buffer)return{success:false,error:'Track has no audio buffer. Load audio first.'};const buffer=track.buffer;const data=buffer.getChannelData(0);const sr=buffer.sampleRate;const channels=buffer.numberOfChannels;const duration=buffer.duration;const totalSamples=buffer.length;const windowSize=Math.min(sr*3,data.length);let detectedBPM=0;if(windowSize>sr){let maxCorr=0;for(let lag=Math.floor(sr*0.3);lag<=Math.floor(sr*2.0);lag++){let corr=0;const step=4;for(let i=0;imaxCorr){maxCorr=corr;detectedBPM=60/(lag/sr);}}}detectedBPM=Math.round(Math.min(300,Math.max(30,detectedBPM)));if(args.set_tempo!==false&&detectedBPM>0){setBpm(String(detectedBPM));}const bitDepth=16;const bitrate=Math.round(sr*channels*bitDepth/1000);return{success:true,trackId:tid,trackName:track.name,bpm:detectedBPM,sampleRate:sr,channels,duration:parseFloat(duration.toFixed(3)),totalSamples,bitDepth,bitrateKbps:bitrate,hasAudio:true};},setBpm:args=>{const bpmVal=args.bpm||args.tempo||120;setBpm(String(bpmVal));return{success:true,bpm:bpmVal};},setPlayhead:args=>{const barDur=60/parseInt(bpm||120)*4;let time;if(args.time!==undefined&&args.time!==null)time=args.time;else if(args.bar!==undefined&&args.bar!==null)time=args.bar*barDur;else time=0;handlePlayheadSet(time);return{success:true,time:parseFloat(time.toFixed(3))};},exportAudio:async args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let tid=args.track_id;if(tid&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(tid)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+tid===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){tid=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!tid)tid=currentSelTrackId;const track=tid&¤tTracks.find(t=>t.id===String(tid)||t.id==='track_'+tid);if(!track)return{success:false,error:'No track found'};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'Track has no audio clips'};const totalDuration=Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration/(c.speed||1.0):0)));const barDur=60/parseInt(bpm||120)*4;const sel=selectionRef.current;let rawStart,rawEnd;if(args.start_time!==undefined)rawStart=args.start_time;else if(args.start_bar!==undefined)rawStart=args.start_bar*barDur;else if(sel.start!==null)rawStart=sel.start;else rawStart=0;if(args.end_time!==undefined)rawEnd=args.end_time;else if(args.length_bars!==undefined)rawEnd=(rawStart||0)+args.length_bars*barDur;else if(args.end_bar!==undefined)rawEnd=args.end_bar*barDur;else if(sel.end!==null&&sel.end>rawStart)rawEnd=sel.end;else rawEnd=totalDuration;if(rawEnd<=rawStart)return{success:false,error:'Export range is empty or invalid.'};const ctx=getAudioContext();const sr=parseInt(args.sample_rate||'44100');const firstBuffer=clips.find(c=>c.buffer)?.buffer;const numCh=args.channels==='mono'?1:firstBuffer?firstBuffer.numberOfChannels:2;const bd=parseInt(args.bit_depth||'16');const fmt=args.format||'wav';const renderLength=rawEnd-rawStart;const offlineCtx=new OfflineAudioContext(numCh,Math.ceil(sr*renderLength),sr);clips.forEach(clip=>{if(!clip.buffer)return;const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(clipEnd<=rawStart||clipStart>=rawEnd)return;const source=offlineCtx.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(offlineCtx.destination);if(rawStart{for(let i=0;i>8&0xFF);vw.setUint8(ofs+2,v24>>16&0xFF);}ofs+=bps;}}const blob=new Blob([fileBuf],{type:'audio/wav'});const localUrl=URL.createObjectURL(blob);const targetFilename=`export_${Date.now()}.${fmt}`;const triggerDownload=(downloadUrl,finalFilename)=>{if(window.DAWCommandDispatcher?.isExecutingAI){showToast(`Xuất nhạc thành công (${fmt.toUpperCase()})!`,"success","Tải về",()=>{const a=document.createElement('a');a.href=downloadUrl;a.download=finalFilename;a.click();if(downloadUrl.startsWith('blob:')){URL.revokeObjectURL(downloadUrl);}});}else{const a=document.createElement('a');a.href=downloadUrl;a.download=finalFilename;a.click();showToast("Xuất bản âm thanh hoàn tất!","success");if(downloadUrl.startsWith('blob:')){URL.revokeObjectURL(downloadUrl);}}};if((fmt==='mp3'||fmt==='ogg')&&serverStatus==='connected'){try{const file=new File([blob],`export_ai.wav`,{type:'audio/wav'});const formData=new FormData();formData.append('file',file);const uploadResp=await fetch(`${API_AUDIO}/upload`,{method:'POST',body:formData});if(!uploadResp.ok)throw new Error("Upload failed");const uploadData=await uploadResp.json();const uploadId=uploadData.file_id;const exportResp=await fetch(`${API_AUDIO}/export`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({file_id:uploadId,format:fmt,sample_rate:sr,bit_depth:bd})});if(!exportResp.ok)throw new Error("Export failed");const exportData=await exportResp.json();const result=await pollTaskResult(exportData.task_id,20);if(result.success){const downloadUrl=`${API_AUDIO}/download/${result.output_file_id}`;triggerDownload(downloadUrl,targetFilename);}else{throw new Error(result.error||'Server encoding failed');}}catch(transcodeErr){showToast(`Lỗi chuyển đổi: ${transcodeErr.message}. Tải về dạng WAV thay thế.`,"warning");triggerDownload(localUrl,`export_${Date.now()}.wav`);}}else{const finalFilename=fmt==='wav'?`export_${Date.now()}.wav`:`export_${Date.now()}.wav`;if(fmt!=='wav'){showToast("Đang ngoại tuyến. Tải về định dạng WAV thay thế.","warning");}triggerDownload(localUrl,finalFilename);}return{success:true,trackId:tid,range:parseFloat((rawEnd-rawStart).toFixed(3))+'s',format:fmt,channels:numCh===1?'mono':'stereo'};},selectItem:args=>{if(args.select_all){setSelectedTrackId(null);clearLocalSelection();setSelectionMode('global');setSelectionStart(0);const maxDur=tracks.reduce((max,t)=>{const dur=t.buffer?t.buffer.duration:0;const clips=t.clips||[];const clipMax=clips.reduce((m,c)=>Math.max(m,(c.startTime||0)+(c.buffer?c.buffer.duration:0)),0);return Math.max(max,dur,clipMax);},0);setSelectionEnd(Math.max(maxDur,currentTime+10));return{success:true,selection:'all',duration:parseFloat(Math.max(maxDur,currentTime+10).toFixed(3))};}const tid=args.track_id||selectedTrackId;const track=tracks.find(t=>t.id===tid);if(!track)return{success:false,error:`Track ${tid} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,name:track.name,buffer:track.buffer,startTime:track.startTime||0}]:[];if(args.item_name){const match=clips.find(c=>c.name&&c.name.toLowerCase().includes(args.item_name.toLowerCase()));if(!match)return{success:false,error:`No clip matching "${args.item_name}" on track ${track.name}`};setSelectedTrackId(tid);clearLocalSelection();setSelectionMode('global');const start=match.startTime||0;const end=start+(match.buffer?match.buffer.duration:2);setSelectionStart(start);setSelectionEnd(end);return{success:true,trackId:tid,trackName:track.name,clipId:match.id,clipName:match.name,start:parseFloat(start.toFixed(3)),end:parseFloat(end.toFixed(3))};}setSelectedTrackId(tid);clearLocalSelection();setSelectionMode('global');const trackEnd=track.buffer?track.buffer.duration:clips.length>0?Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration:0))):4;setSelectionStart(0);setSelectionEnd(trackEnd);return{success:true,trackId:tid,trackName:track.name,duration:parseFloat(trackEnd.toFixed(3))};},addMarker:args=>{const trackId=args.track_id||selectedTrackId;const time=args.time??currentTime;const track=tracks.find(t=>t.id===trackId);if(!track)return{success:false,error:'Track not found'};setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,markers:[...(t.markers||[]),{id:'ai_marker_'+Date.now(),time,label:args.label||'AI Marker'}]};}));return{success:true,trackId,time};},fadeIn:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let trackIdRaw=args.track_id;if(trackIdRaw&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(trackIdRaw)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+trackIdRaw===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){trackIdRaw=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!trackIdRaw)trackIdRaw=currentSelTrackId;const track=currentTracks.find(t=>t.id===String(trackIdRaw)||t.id==='track_'+trackIdRaw);if(!track)return{success:false,error:`Track ${trackIdRaw} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'No clips on track'};let clip=null;if(args.clip_id){clip=clips.find(c=>c.id===args.clip_id);}else if(args.clip_index!==undefined){const idx=parseInt(args.clip_index);const realIdx=idx>0?idx-1:0;clip=clips[realIdx]||clips[0];}else{clip=clips[0];}if(!clip||!clip.buffer)return{success:false,error:'Clip has no audio buffer'};const duration=parseFloat(args.duration_seconds||3);const buffer=clip.buffer;const sr=buffer.sampleRate;const numChannels=buffer.numberOfChannels;const length=buffer.length;const ctx=getAudioContext();const newBuffer=ctx.createBuffer(numChannels,length,sr);for(let c=0;c{if(t.id!==track.id)return t;const existingClips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];const updatedClips=existingClips.map(c=>{if(c.id===clip.id||clip.id.startsWith('default_')&&c.id==='default'){return{...c,buffer:newBuffer};}return c;});const mainBuffer=updatedClips[0]?.buffer||t.buffer;return{...t,clips:updatedClips,buffer:mainBuffer};});if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;}setTracks(nextTracks);setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('AI_FADE_IN',track.id,beforeSnap,afterSnap);},50);return{success:true,trackId:track.id,clipId:clip.id,duration_seconds:duration};},fadeOut:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let trackIdRaw=args.track_id;if(trackIdRaw&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(trackIdRaw)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+trackIdRaw===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){trackIdRaw=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!trackIdRaw)trackIdRaw=currentSelTrackId;const track=currentTracks.find(t=>t.id===String(trackIdRaw)||t.id==='track_'+trackIdRaw);if(!track)return{success:false,error:`Track ${trackIdRaw} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'No clips on track'};let clip=null;if(args.clip_id){clip=clips.find(c=>c.id===args.clip_id);}else if(args.clip_index!==undefined){const idx=parseInt(args.clip_index);const realIdx=idx>0?idx-1:0;clip=clips[realIdx]||clips[0];}else{clip=clips[0];}if(!clip||!clip.buffer)return{success:false,error:'Clip has no audio buffer'};const duration=parseFloat(args.duration_seconds||3);const buffer=clip.buffer;const sr=buffer.sampleRate;const numChannels=buffer.numberOfChannels;const length=buffer.length;const ctx=getAudioContext();const newBuffer=ctx.createBuffer(numChannels,length,sr);for(let c=0;c{if(t.id!==track.id)return t;const existingClips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];const updatedClips=existingClips.map(c=>{if(c.id===clip.id||clip.id.startsWith('default_')&&c.id==='default'){return{...c,buffer:newBuffer};}return c;});const mainBuffer=updatedClips[0]?.buffer||t.buffer;return{...t,clips:updatedClips,buffer:mainBuffer};});if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;}setTracks(nextTracks);setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('AI_FADE_OUT',track.id,beforeSnap,afterSnap);},50);return{success:true,trackId:track.id,clipId:clip.id,duration_seconds:duration};}};window.DAWCommandDispatcher.registerDAWCommands(api);},[tracks,selectedTrackId,currentTime,bpm]);// ── Save AI config to localStorage ── useEffect(()=>{localStorage.setItem('ai_base_url',aiConfig.baseUrl);localStorage.setItem('ai_api_key',aiConfig.apiKey);localStorage.setItem('ai_model',aiConfig.model);},[aiConfig]);// ── Auto-save user preferences (panel state, provider) ── -const 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Providers...',icon:'settings',action:()=>setAiConfigModalOpen(true)},{label:'Import Audio...',icon:'file-input',shortcut:'Ctrl+Alt+I',action:()=>{const input=document.createElement('input');input.type='file';input.accept='audio/*';input.onchange=async e=>{if(e.target.files[0]){addNewTrack();const newId=(tracks.length+1).toString();setTimeout(()=>loadFileOnTrack(newId,e.target.files[0]),100);}};input.click();showToast('Import audio','info');}},{label:'Export Mix...',icon:'file-output',action:()=>triggerWavExport()},{sep:true},...(currentUser?[{label:'Profile',icon:'user',action:()=>setProfileModalOpen(true)}]:[]),...(currentUser&¤tUser.role==='admin'?[{label:'System Manager',icon:'settings',action:()=>setSystemManagerModalOpen(true)}]:[]),{label:'Logout',icon:'log-out',action:()=>handleLogout()}]},{label:'Edit',items:[{label:'Insert New Track',icon:'plus',shortcut:'Ctrl+I',action:addNewTrack},{label:'Insert Music to Track',icon:'music',shortcut:'Ctrl+Alt+I',action:()=>showToast('Select 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0; i < inputChannel.length; i++) { + this.buffer[this.bufferIndex++] = inputChannel[i]; + + // When Ring-Buffer fills, send Float32Array to Main Thread + if (this.bufferIndex >= this.bufferSize) { + this.port.postMessage({ + type: 'PCM_DATA', + buffer: this.buffer.slice(0, this.bufferSize) + }); + this.bufferIndex = 0; + } + } + } + return true; // Keep worklet active + } +} + +registerProcessor('pcm-recorder-processor', PCMRecorderProcessor);