diff --git a/.gitignore b/.gitignore index bedfe02..6d41809 100644 --- a/.gitignore +++ b/.gitignore @@ -22,8 +22,4 @@ app/storage/processed/* .vscode/ *.log celerybeat-schedule -<<<<<<< Updated upstream -node_modules/ -======= -node_modules ->>>>>>> Stashed changes +node_modules \ No newline at end of file diff --git a/.kilo/AGENTs.md b/.kilo/AGENTs.md new file mode 100644 index 0000000..ef7ec3d --- /dev/null +++ b/.kilo/AGENTs.md @@ -0,0 +1,13 @@ +# Kilo Post-Task Automation Rule + +Mỗi khi bạn (Kilo) hoàn thành một tác vụ viết code, sửa lỗi, hoặc refactor code theo yêu cầu của tôi, bạn BẮT BUỘC phải thực hiện bước cuối cùng sau: + +1. Kiểm tra sự tồn tại của file `wiki.md` ở thư mục gốc (nếu chưa có, hãy tạo mới). +2. Tự động chèn (append) một đoạn báo cáo ngắn về task vừa hoàn thành vào CUỐI file `wiki.md` theo cấu trúc sau: +3. Tự động add và commit với tên ngắn gọn của công việc + +### [YYYY-MM-DD HH:mm] Task: +- **Tóm tắt thay đổi:** +- **Các file ảnh hưởng:** ``, `` +- **Ghi chú/Test (nếu có):** +--- \ No newline at end of file diff --git a/app/core/vst_engine.py b/app/core/vst_engine.py index 23dfbcd..8d0fa2f 100644 --- a/app/core/vst_engine.py +++ b/app/core/vst_engine.py @@ -1,6 +1,7 @@ # SonicForge Studio VST / VSTi Engine Service import os import numpy as np +import functools from ctypes import c_int, c_char_p, c_void_p def midi_note_to_freq(note_number: int) -> float: @@ -92,11 +93,62 @@ if HAS_PYFLUIDSYNTH: HAS_PYFLUIDSYNTH = False +# ── Module-level caches ── +_FLUID_CACHE = {} # path → (fluidsynth.FluidSynth, refcount) +_PLUGIN_MANAGER_INSTANCE = None +_PLUGIN_MANAGER_ARGS = None +_SF_INSTRUMENTS_CACHE = {} # sf_id → list[presets] + +def get_plugin_manager(vst_dir="/opt/daw_engine/vst3", sf_dir="/opt/daw_engine/soundfonts", upload_sf_dir=None) -> "PluginManager": + """Singleton: reuse PluginManager when args match, else create new.""" + global _PLUGIN_MANAGER_INSTANCE, _PLUGIN_MANAGER_ARGS + args = (vst_dir, sf_dir, upload_sf_dir) + if _PLUGIN_MANAGER_INSTANCE is not None and _PLUGIN_MANAGER_ARGS == args: + return _PLUGIN_MANAGER_INSTANCE + _PLUGIN_MANAGER_ARGS = args + _PLUGIN_MANAGER_INSTANCE = PluginManager(vst_dir, sf_dir, upload_sf_dir) + return _PLUGIN_MANAGER_INSTANCE + +def load_soundfont_cached(path: str): + """Return a cached FluidSynth instance for path, incrementing refcount.""" + global _FLUID_CACHE + if not HAS_PYFLUIDSYNTH: + return None + if path in _FLUID_CACHE: + fl, ref = _FLUID_CACHE[path] + _FLUID_CACHE[path] = (fl, ref + 1) + return fl + try: + import fluidsynth + fl = fluidsynth.FluidSynth(sample_rate=44100, gain=0.5) + font_id = fl.sfload(path) + fl.program_select(0, font_id, 0, 0) + _FLUID_CACHE[path] = (fl, 1) + return fl + except Exception: + return None + +def release_soundfont(path: str): + """Decrement refcount; delete FluidSynth when count reaches 0.""" + global _FLUID_CACHE + if path not in _FLUID_CACHE: + return + fl, ref = _FLUID_CACHE[path] + if ref <= 1: + try: + fl.delete() + except Exception: + pass + del _FLUID_CACHE[path] + else: + _FLUID_CACHE[path] = (fl, ref - 1) + class PluginManager: def __init__(self, vst_dir="/opt/daw_engine/vst3", sf_dir="/opt/daw_engine/soundfonts", upload_sf_dir=None): self.vst_dir = vst_dir self.sf_dir = sf_dir self.upload_sf_dir = upload_sf_dir + self._sf_scan_cache = None # cache for _scan_soundfonts() def _scan_plugins(self) -> dict: plugins = {} @@ -160,20 +212,20 @@ class PluginManager: pass return vst + def _scan_soundfonts_cached(self): + if self._sf_scan_cache is not None: + return self._sf_scan_cache + self._sf_scan_cache = self._scan_soundfonts() + return self._sf_scan_cache + def load_soundfont(self, path: str): - if not HAS_PYFLUIDSYNTH: - return None - try: - fl = fluidsynth.FluidSynth(sample_rate=44100, gain=0.5) - font_id = fl.sfload(path) - fl.program_select(0, font_id, 0, 0) - return fl - except Exception: - return None + return load_soundfont_cached(path) def list_soundfont_instruments(self, sf_id: str): if not ensure_pyfluidsynth(): return [] + if sf_id in _SF_INSTRUMENTS_CACHE: + return _SF_INSTRUMENTS_CACHE[sf_id] search_dirs = [] if os.path.isdir(self.sf_dir): search_dirs.append(self.sf_dir) @@ -187,13 +239,13 @@ class PluginManager: if base == sf_id or base == sf_id.replace("sf_", ""): path = os.path.join(d, f) try: + import fluidsynth fl = fluidsynth.Synth() fid = fl.sfload(path) if fid < 0: fl.delete() continue presets = [] - # Use fluid_sfont_get_preset + fluid_preset_get_name C API _fl = fluidsynth._fl _fl.fluid_synth_get_sfont_by_id.restype = c_void_p _fl.fluid_preset_get_name.restype = c_char_p @@ -217,9 +269,11 @@ class PluginManager: "name": name_val.decode("utf-8", errors="replace") }) fl.delete() + _SF_INSTRUMENTS_CACHE[sf_id] = presets[:256] return presets[:256] except Exception: import traceback; traceback.print_exc() + _SF_INSTRUMENTS_CACHE[sf_id] = [] return [] def list_available(self) -> dict: diff --git a/app/static/js/app.jsx b/app/static/js/app.jsx index 234452f..7ffb17a 100644 --- a/app/static/js/app.jsx +++ b/app/static/js/app.jsx @@ -438,8 +438,9 @@ const WaveformLane = ({ // 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; + const PADDING_LEFT = 2; // seconds of empty space on left edge + const tStart = scrollLeftVal / zoom - PADDING_LEFT; + const tEnd = (scrollLeftVal + drawWidth) / zoom; let gridSpacing = 1.0; if (snapValue && snapValue !== 'free') { const beatDuration = 60 / parseFloat(bpm || 120); @@ -1214,8 +1215,9 @@ const TempoTrackLane = ({ ctx.fillRect(0, 0, drawWidth, height); const beatDuration = 60 / bpm; const barDuration = beatDuration * 4; - const tStart = scrollLeft / zoom; - const tEnd = (scrollLeft + drawWidth) / zoom; + const PADDING_LEFT = 2; // seconds of empty space on left edge + const tStart = scrollLeftVal / zoom - PADDING_LEFT; + const tEnd = (scrollLeftVal + drawWidth) / zoom; const firstBeat = Math.floor(tStart / beatDuration) * beatDuration; for (let t = firstBeat; t <= tEnd; t += beatDuration) { const beatNum = Math.floor(t / beatDuration) + 1; @@ -4424,14 +4426,19 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const pixelsPerBeat = rollZoom; const timeSigNum = 4; const noteMaxBeat = (st.notes || []).reduce((max, n) => Math.max(max, (n.start_beat || 0) + (n.duration_beats || 1)), 0); - const totalBeats = Math.max(noteMaxBeat + 16, 64); // at least 64 beats (16 bars) for scrolling - const drawWidth = totalBeats * pixelsPerBeat; - - const [notes, setNotes] = React.useState(st.notes || []); - const [selectedNoteIds, setSelectedNoteIds] = React.useState([]); const [selectionMarquee, setSelectionMarquee] = React.useState(null); // { startBeat, startPitch, currentBeat, currentPitch } const [draggedNote, setDraggedNote] = React.useState(null); // { mode: 'move'|'resize', idx, startOffsetBeat, originalStart } const [hoveredResizeIdx, setHoveredResizeIdx] = React.useState(-1); + const [rollBeats, setRollBeats] = React.useState(Math.max(noteMaxBeat + 16, 64)); + const rollBeatsRef = React.useRef(rollBeats); + rollBeatsRef.current = rollBeats; + const totalBeats = Math.max(rollBeats, noteMaxBeat + 16, 64); // at least 64 beats (16 bars) for scrolling + const [gridViewWidth, setGridViewWidth] = React.useState(800); + const drawWidth = totalBeats * pixelsPerBeat; + const cssWidth = Math.max(drawWidth, gridViewWidth); + + const [notes, setNotes] = React.useState(st.notes || []); + const [selectedNoteIds, setSelectedNoteIds] = React.useState([]); // Undo/redo stacks const undoStackRef = React.useRef([]); @@ -4529,42 +4536,28 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot }; }, []); - // Shift + Scroll event listener to adjust velocity + // Shift + Scroll event listener: fast‑forward playhead + play notes React.useEffect(() => { const handleCanvasWheel = (e) => { if (e.shiftKey) { e.preventDefault(); - const canvas = canvasRef.current; - if (!canvas) return; - const rect = canvas.getBoundingClientRect(); - const x = e.clientX - rect.left; - const y = e.clientY - rect.top; - const beat = x / pixelsPerBeat; - const pitch = 127 - Math.floor(y / NoteHeight); - - // Find note under cursor - const noteUnderCursor = notes.find(n => { - return pitch === n.pitch && beat >= n.start_beat && beat < n.start_beat + n.duration_beats; - }); - - const delta = e.deltaY < 0 ? 0.05 : -0.05; - - if (selectedNoteIds.length > 0) { - setNotes(prev => prev.map(n => { - if (!selectedNoteIds.includes(n.id)) return n; - const newVel = Math.max(0.1, Math.min(1.0, (n.velocity ?? 0.8) + delta)); - return { ...n, velocity: newVel }; - })); - } else if (noteUnderCursor) { - setNotes(prev => prev.map(n => { - if (n.id !== noteUnderCursor.id) return n; - const newVel = Math.max(0.1, Math.min(1.0, (n.velocity ?? 0.8) + delta)); - if (window.SonicSF) { - const ctx = getAudioContext(); - window.SonicSF.playNote(n.pitch, newVel * 127, 300, ctx.currentTime, st.instrumentProgram, null); - } - return { ...n, velocity: newVel }; - })); + const scrollDelta = e.deltaY; + const beatSec = 60.0 / (parseInt(bpm) || 120); + const step = scrollDelta < 0 ? -0.25 : 0.25; // 1/4 beat per notch + const currentBeat = (st.currentTime || 0) / beatSec; + const maxBeats = totalBeats; + const newBeat = Math.max(0, Math.min(maxBeats, currentBeat + step)); + const newTime = newBeat * beatSec; + setSubTabs(prev => prev.map(s => s.id === st.id ? { ...s, currentTime: newTime } : s)); + // Play notes at the new beat position + if (window.SonicSF) { + const ctx = getAudioContext(); + const playing = notes.filter(n => + newBeat >= n.start_beat && newBeat < n.start_beat + n.duration_beats + ); + playing.forEach(n => { + window.SonicSF.playNote(n.pitch, (n.velocity || 0.8) * 127, 200, ctx.currentTime, st.instrumentProgram, null); + }); } } }; @@ -4578,7 +4571,19 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot canvas.removeEventListener('wheel', handleCanvasWheel); } }; - }, [notes, selectedNoteIds, pixelsPerBeat]); + }, [notes, st.currentTime, pixelsPerBeat, st.id, totalBeats, bpm]); + + // Track grid container width for zoom fill + React.useEffect(() => { + const el = gridScrollRef.current; + if (!el) return; + const ro = new ResizeObserver(entries => { + for (const entry of entries) setGridViewWidth(entry.contentRect.width); + }); + ro.observe(el); + setGridViewWidth(el.clientWidth); + return () => ro.disconnect(); + }, []); React.useEffect(() => { const canvas = canvasRef.current; @@ -4586,7 +4591,8 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const ctx = canvas.getContext('2d'); const dpr = window.devicePixelRatio || 1; const h = 128 * NoteHeight; - canvas.width = drawWidth * dpr; + const canvasW = Math.max(drawWidth, gridViewWidth); + canvas.width = canvasW * dpr; canvas.height = h * dpr; ctx.scale(dpr, dpr); @@ -4614,8 +4620,11 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot else if (snapVal === '1/16') snapBeats = 0.25; else if (snapVal === '1/32') snapBeats = 0.125; - for (let beat = 0; beat <= totalBeats; beat += snapBeats) { + const maxBeatPx = drawWidth; + const gridEndBeat = Math.max(totalBeats, Math.ceil(canvasW / pixelsPerBeat) + 4); + for (let beat = 0; beat <= gridEndBeat; beat += snapBeats) { const x = beat * pixelsPerBeat; + if (x > drawWidth) break; const isBar = beat % timeSigNum === 0; ctx.strokeStyle = isBar ? '#444450' : '#2d2d35'; ctx.lineWidth = isBar ? 1.2 : 0.6; @@ -4688,7 +4697,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const ctx = canvas.getContext('2d'); const dpr = window.devicePixelRatio || 1; const h = 80; - canvas.width = drawWidth * dpr; + canvas.width = Math.max(drawWidth, gridViewWidth) * dpr; canvas.height = h * dpr; ctx.scale(dpr, dpr); @@ -4748,6 +4757,8 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const beat = x / pixelsPerBeat; const pitch = 127 - Math.floor(y / NoteHeight); + if (scaleMenuPos) setScaleMenuPos(null); + // Right click -> Quick delete note or start erase sweep if (e.button === 2) { e.preventDefault(); @@ -4867,7 +4878,12 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot nextSelectedIds = [clickedNote.id]; setSelectedNoteIds(nextSelectedIds); } else { - nextSelectedIds = selectedNoteIds; + // Note already selected -- only play preview, don't drag + if (window.SonicSF) { + const ctx = getAudioContext(); + window.SonicSF.playNote(clickedNote.pitch, 100, 300, ctx.currentTime, st.instrumentProgram, null); + } + return; } pushToUndo(notes); notesBeforeDragRef.current = JSON.parse(JSON.stringify(notes)); @@ -4893,7 +4909,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot const noteId = 'note_' + Date.now() + Math.random().toString(36).substr(2, 5); const newNote = { id: noteId, - pitch: pitch, + pitch: snapPitchToScale(pitch, selectedScale), start_beat: start, duration_beats: initialDur, velocity: 0.8, @@ -4905,12 +4921,12 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot mode: 'draw', idx: -1, startOffsetBeat: start, - startOffsetPitch: pitch, + startOffsetPitch: snapPitchToScale(pitch, selectedScale), drawNoteId: noteId, drawDuration: initialDur, - visitedPitches: [pitch], + visitedPitches: [snapPitchToScale(pitch, selectedScale)], initialBeat: start, - initialPitch: pitch + initialPitch: snapPitchToScale(pitch, selectedScale) }); // Play the note with SoundFont if (window.SonicSF) { @@ -4983,8 +4999,9 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot return { ...n, duration_beats: newDur }; })); } - if (!visited.includes(pitch)) { - const newPitches = [...visited, pitch]; + const snappedPitch = snapPitchToScale(pitch, selectedScale); + if (!visited.includes(snappedPitch)) { + const newPitches = [...visited, snappedPitch]; const totalSpan = Math.max(0.125, beat - draggedNote.initialBeat); const perNoteDur = totalSpan / newPitches.length; const brushIds = draggedNote.brushIds || []; @@ -5080,6 +5097,8 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot e.preventDefault(); }; + const ccDragRef = React.useRef(null); + const handleCCMouseDown = (e) => { const canvas = ccCanvasRef.current; if (!canvas) return; @@ -5102,16 +5121,64 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot }); } - if (noteIdx !== -1) { - const val = Math.max(0, Math.min(1, (h - y) / h)); - setNotes(prev => prev.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 val = Math.max(0, Math.min(1, (h - y) / h)); + const paintNote = (idx, v) => { + if (idx === -1) return; + setNotes(prev => prev.map((n, i) => { + if (i !== idx) return n; + if (ccMode === 'pan') { return { ...n, pan: (v - 0.5) * 2.0 }; } + return { ...n, velocity: v }; })); + }; + + if (e.ctrlKey) { + if (noteIdx !== -1) paintNote(noteIdx, val); + ccDragRef.current = { active: true, lastBeat: beat, lastPainted: noteIdx !== -1 ? [noteIdx] : [] }; + return; + } + + if (noteIdx !== -1) paintNote(noteIdx, val); + }; + + const handleCCMouseMove = (e) => { + if (!ccDragRef.current || !ccDragRef.current.active) return; + 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; + const val = Math.max(0, Math.min(1, (h - y) / h)); + + const drag = ccDragRef.current; + const painted = drag.lastPainted || []; + + const candidateIdx = notes.findIndex(n => beat >= n.start_beat && beat <= n.start_beat + n.duration_beats); + + if (candidateIdx !== -1 && !painted.includes(candidateIdx)) { + setNotes(prev => prev.map((n, i) => { + if (i !== candidateIdx) return n; + if (ccMode === 'pan') return { ...n, pan: (val - 0.5) * 2.0 }; + return { ...n, velocity: val }; + })); + drag.lastPainted = [...painted, candidateIdx]; + } else if (candidateIdx === -1) { + let nearest = -1; + let minDist = Infinity; + notes.forEach((n, idx) => { + const center = n.start_beat + n.duration_beats / 2; + const d = Math.abs(center - beat); + if (d < minDist) { minDist = d; nearest = idx; } + }); + if (nearest !== -1 && !painted.includes(nearest)) { + setNotes(prev => prev.map((n, i) => { + if (i !== nearest) return n; + if (ccMode === 'pan') return { ...n, pan: (val - 0.5) * 2.0 }; + return { ...n, velocity: val }; + })); + drag.lastPainted = [...painted, nearest]; + } } }; @@ -5152,6 +5219,12 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot if (rulerScrollRef.current) { rulerScrollRef.current.scrollLeft = e.currentTarget.scrollLeft; } + const el = e.currentTarget; + const THRESHOLD = 200; + if (el.scrollLeft + el.clientWidth >= el.scrollWidth - THRESHOLD) { + const newBeats = rollBeatsRef.current + 16; + setRollBeats(newBeats); + } }; const handleKeybedScroll = (e) => { if (gridScrollRef.current) { @@ -5159,9 +5232,124 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot } }; + const SCALES = { + "None": null, + "Major": [0, 2, 4, 5, 7, 9, 11], + "Minor": [0, 2, 3, 5, 7, 8, 10], + "Pentatonic": { + "Chinese": [0, 2, 4, 7, 9], + "Vietnam": [0, 2, 6, 7, 10], + "India": [0, 2, 5, 7, 9], + "Japan": [0, 2, 5, 7, 9], + "Africa": [0, 3, 5, 7, 10] + }, + "Blues": [0, 3, 5, 6, 7, 10], + "Dorian": [0, 2, 3, 5, 7, 9, 10], + "Phrygian": [0, 1, 3, 5, 7, 8, 10], + "Lydian": [0, 2, 4, 6, 7, 9, 11], + "Mixolydian": [0, 2, 4, 5, 7, 9, 10], + "Locrian": [0, 1, 3, 5, 6, 8, 10] + }; + const [selectedScale, setSelectedScale] = React.useState(null); + const [scaleMenuPos, setScaleMenuPos] = React.useState(null); + const [aiPrompt, setAiPrompt] = React.useState(''); + const [aiLoading, setAiLoading] = React.useState(false); + + const snapPitchToScale = (pitch, scale) => { + if (!scale) return pitch; + const octave = Math.floor(pitch / 12); + const noteInOctave = pitch % 12; + if (scale.includes(noteInOctave)) return pitch; + let best = noteInOctave; + let minDist = 12; + scale.forEach(s => { const dist = Math.abs(s - noteInOctave); if (dist < minDist) { minDist = dist; best = s; } }); + return octave * 12 + best; + }; + + const handleAIPrompt = async () => { + const prompt = aiPrompt.trim(); + if (!prompt || !window.AIGateway) return; + setAiLoading(true); + try { + const result = await window.AIGateway.executeAIPrompt({ + prompt: 'Generate MIDI notes for a piano roll. Return ONLY a JSON array: [{pitch(0-127), start_beat, duration_beats, velocity(0.0-1.0)}]. ' + prompt, + provider: 'openai', + model: 'gpt-4o', + systemInstruction: 'You are a MIDI composer. Output ONLY valid JSON array of notes. No markdown, no explanation. Use 4/4 time. pitch=C4=60, D4=62, E4=64, F4=65, G4=67, A4=69, B4=71, C5=72.' + }); + let notesData = null; + if (result.textResponse) { + try { + const cleaned = result.textResponse.replace(/```json?\s*/g, '').replace(/```/g, '').trim(); + notesData = JSON.parse(cleaned); + } catch (e1) {} + } + if (!notesData && result.functionCalls) { + for (const fc of result.functionCalls) { + if (fc.arguments && fc.arguments.notes) { notesData = fc.arguments.notes; break; } + } + } + if (Array.isArray(notesData) && notesData.length > 0) { + const newNotes = notesData.map((n, i) => ({ + id: 'note_ai_' + Date.now() + '_' + i, + pitch: Math.max(0, Math.min(127, n.pitch || 60)), + start_beat: Math.max(0, parseFloat(n.start_beat) || 0), + duration_beats: Math.max(0.125, parseFloat(n.duration_beats) || 0.25), + velocity: Math.max(0.1, Math.min(1.0, n.velocity ?? 0.8)), + pan: 0.0 + })); + pushToUndo(notes); + setNotes(prev => [...prev, ...newNotes]); + setSelectedNoteIds(newNotes.map(n => n.id)); + if (window.SonicSF && newNotes.length > 0) { + const ctx = getAudioContext(); + newNotes.forEach(n => window.SonicSF.playNote(n.pitch, n.velocity * 127, 300, ctx.currentTime + (n.start_beat * 0.01), st.instrumentProgram, null)); + } + } + } catch (err) { + console.error('AI Piano Roll error:', err); + } + setAiLoading(false); + }; + + const renderScaleContextMenu = () => { + const closeMenu = () => setScaleMenuPos(null); + const items = []; + const isSameScale = (a, b) => { if (!a || !b) return a === b; if (a.length !== b.length) return false; return a.every((v,i)=>v===b[i]); }; + const pushItem = (label, onClick, indent) => { + const isActive = onClick._scale && isSameScale(onClick._scale, selectedScale); + items.push(React.createElement("div", { + key: label, + onClick: () => { onClick(); closeMenu(); }, + className: "px-3 py-1.5 text-xs cursor-pointer hover:bg-amber-600 hover:text-white whitespace-nowrap " + (indent ? "pl-6 " : "") + (isActive ? "bg-amber-800/40 text-amber-300" : "text-zinc-300") + }, label)); + }; + Object.keys(SCALES).forEach(key => { + const val = SCALES[key]; + if (val === null) { pushItem("None", () => setSelectedScale(null)); return; } + if (Array.isArray(val)) { + pushItem(key, () => setSelectedScale(val)); + } else { + const parentKey = key; + const isOpen = scaleMenuPos && scaleMenuPos.parentKey === parentKey; + pushItem(key + " ▸", () => { setScaleMenuPos({ x: scaleMenuPos.x + 120, y: scaleMenuPos.y, parentKey }); }, false); + if (isOpen) { + Object.keys(val).forEach(subKey => { + pushItem(subKey, () => setSelectedScale(val[subKey]), true); + }); + } + } + }); + return React.createElement("div", { + style: { position: "fixed", left: scaleMenuPos.x, top: scaleMenuPos.y, zIndex: 9999 }, + className: "bg-[#2a2a2a] border border-zinc-600 rounded shadow-xl py-1 min-w-[140px]" + }, ...items); + }; + const renderBarLabels = () => { const labels = []; - const barsCount = Math.ceil(totalBeats / 4); + const extraBars = Math.max(0, Math.ceil((gridViewWidth - drawWidth) / (4 * pixelsPerBeat)) + 2); + const barsCount = Math.ceil(totalBeats / 4) + extraBars; for (let bar = 0; bar < barsCount; bar++) { const x = bar * 4 * pixelsPerBeat; labels.push( @@ -5222,6 +5410,19 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot onClick: () => setCcMode(mode), className: `px-2.5 py-1 rounded capitalize ${ccMode === mode ? 'bg-purple-900/60 text-purple-300 font-bold border border-purple-700' : 'text-zinc-400 hover:text-zinc-200'}` }, mode)))), /*#__PURE__*/React.createElement("div", { + className: "flex items-center gap-1 flex-1 max-w-[300px] ml-2" + }, /*#__PURE__*/React.createElement("input", { + type: "text", + value: aiPrompt, + onChange: e => setAiPrompt(e.target.value), + onKeyDown: e => { if (e.key === 'Enter') handleAIPrompt(); }, + placeholder: "AI: tạo 8 bars MIDI...", + className: "flex-1 bg-zinc-900 border border-zinc-700 text-zinc-200 text-[10px] rounded px-2 py-1 outline-none focus:border-amber-500 min-w-0" + }), /*#__PURE__*/React.createElement("button", { + onClick: handleAIPrompt, + disabled: aiLoading, + className: "px-2 py-1 text-[10px] bg-purple-700 hover:bg-purple-600 disabled:bg-zinc-700 text-white rounded flex items-center gap-1 transition" + }, aiLoading ? "..." : "AI")), /*#__PURE__*/React.createElement("div", { className: "flex items-center gap-1" }, /*#__PURE__*/React.createElement("button", { onClick: () => onSaveNotes(st.id, st.trackId, st.target_id, notes), @@ -5253,7 +5454,7 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot } }, /*#__PURE__*/React.createElement("div", { style: { - width: `${drawWidth}px`, + width: `${cssWidth}px`, height: '100%' }, className: "relative h-full font-mono text-[9px] text-zinc-500 font-bold" @@ -5272,9 +5473,9 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot onScroll: handleScroll, className: "flex-1 overflow-auto bg-[#141414] min-w-0" }, /*#__PURE__*/React.createElement("div", { - style: { - width: `${drawWidth}px`, - height: `${(128 - PITCH_START) * NoteHeight}px` + style: { + width: `${cssWidth}px`, + height: `${(128 - PITCH_START) * NoteHeight}px` }, className: "relative" }, /*#__PURE__*/React.createElement("canvas", { @@ -5293,15 +5494,18 @@ const PianoRollTabEditor = ({ st, zoom, bpm, viewportWidth, onClose, onUpdateNot className: "flex-1 overflow-x-hidden min-w-0" }, /*#__PURE__*/React.createElement("div", { style: { - width: `${drawWidth}px`, + width: `${cssWidth}px`, height: '100%' }, className: "relative" }, /*#__PURE__*/React.createElement("canvas", { ref: ccCanvasRef, onMouseDown: handleCCMouseDown, + onMouseMove: handleCCMouseMove, + onMouseUp: () => { ccDragRef.current = null; }, + onMouseLeave: () => { ccDragRef.current = null; }, className: "absolute inset-0 cursor-ns-resize" - }))))); + })))), scaleMenuPos && renderScaleContextMenu()); }; const serializeTracksList = (tracksList, secondsPerBar) => { @@ -8303,6 +8507,7 @@ const App = () => { // ── Computed Values ── const maxDuration = useMemo(() => { + const secPerBar = (60.0 / (parseInt(bpm) || 120)) * 4; let max = 10; tracks.forEach(t => { const clips = t.clips && t.clips.length > 0 ? t.clips : t.buffer ? [{ @@ -9958,12 +10163,25 @@ const App = () => { } showToast('Đã xóa track.', 'info'); }; + // Shared auto-scroll: when mouse near right edge, scroll container right + const autoScrollTimeline = (clientX) => { + const wrapper = timelineWrapperRef.current; + if (!wrapper) return; + const wr = wrapper.getBoundingClientRect(); + const margin = 60; + if (clientX > wr.right - margin) { + const speed = 15; + wrapper.scrollLeft += speed; + } + }; + useEffect(() => { const handleMouseMove = e => { const drag = draggedClipRef.current; if (!drag) return; const wrapper = timelineWrapperRef.current; if (!wrapper) return; + autoScrollTimeline(e.clientX); const rect = wrapper.getBoundingClientRect(); const scrollLeft = wrapper.scrollLeft; const mouseX = e.clientX - rect.left + scrollLeft; @@ -10114,6 +10332,7 @@ const App = () => { if (!drag) return; const wrapper = timelineWrapperRef.current; if (!wrapper) return; + autoScrollTimeline(e.clientX); const rect = wrapper.getBoundingClientRect(); const scrollLeft = wrapper.scrollLeft; const mouseX = e.clientX - rect.left + scrollLeft; @@ -10177,6 +10396,7 @@ const App = () => { if (!resize) return; const wrapper = timelineWrapperRef.current; if (!wrapper) return; + autoScrollTimeline(e.clientX); const rect = wrapper.getBoundingClientRect(); const scrollLeft = wrapper.scrollLeft; const mouseX = e.clientX - rect.left + scrollLeft; @@ -14616,6 +14836,7 @@ const App = () => { zoom: zoom, timelineWidth: timelineWidth, viewportWidth: viewportWidth, + scrollLeft: scrollLeft, onSelectRange: handleSelectRange, onPlayheadSet: handlePlayheadSet, isSelected: isSelected, diff --git a/app/static/js/app.precompiled.js b/app/static/js/app.precompiled.js index 2399bb8..a4ed731 100644 --- a/app/static/js/app.precompiled.js +++ b/app/static/js/app.precompiled.js @@ -19,7 +19,8 @@ this.sourceNode.connect(this.workletNode);// Enable Live Input Monitoring if req 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,canvasRedrawCount})=>{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 +ctx.strokeStyle='rgba(255, 255, 255, 0.03)';ctx.lineWidth=1;const PADDING_LEFT=2;// seconds of empty space on left edge +const tStart=scrollLeftVal/zoom-PADDING_LEFT;const tEnd=(scrollLeftVal+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(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=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 @@ -57,7 +58,8 @@ if(clickedClip&&(e.altKey||e.ctrlKey)){e.preventDefault();e.stopPropagation();if if(e.ctrlKey){if(onClearLocalSelection)onClearLocalSelection();if(onSetSelectionMode)onSetSelectionMode(null);if(onSetSelectionStart)onSetSelectionStart(null);if(onSetSelectionEnd)onSetSelectionEnd(null);return;}onPlayheadSet(time);if(onTrackLaneMouseDown){onTrackLaneMouseDown(track.id,time,e);}e.stopPropagation();},onDoubleClick:e=>{const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,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}]:[];// Check double-click on section first const dblSecItems=track.sections||[];let dblSecHit=null;for(const sec of dblSecItems){if(time>=sec.start&&time=midi.startTime&&timetime>=c.startTime&&time{e.preventDefault();e.stopPropagation();onSelectTrack(track.id);const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,x/zoom);// Detect section under cursor -const secList=track.sections||[];let hitSectionId=null;for(const sec of secList){if(time>=sec.start&&time{const canvasRef=useRef(null);const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const height=canvas.parentElement?canvas.parentElement.clientHeight:40;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle='#1a1a2e';ctx.fillRect(0,0,drawWidth,height);const beatDuration=60/bpm;const barDuration=beatDuration*4;const tStart=scrollLeft/zoom;const tEnd=(scrollLeft+drawWidth)/zoom;const firstBeat=Math.floor(tStart/beatDuration)*beatDuration;for(let t=firstBeat;t<=tEnd;t+=beatDuration){const beatNum=Math.floor(t/beatDuration)+1;const isBar=beatNum%4===1;const localX=(t-tStart)*zoom;if(isBar){ctx.strokeStyle='rgba(255, 255, 255, 0.3)';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();ctx.fillStyle='rgba(255, 255, 255, 0.7)';ctx.font='bold 9px Inter, sans-serif';ctx.textAlign='left';ctx.fillText(`${Math.ceil(beatNum/4)}`,localX+3,11);}else if(zoom>=2){ctx.strokeStyle='rgba(255, 255, 255, 0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();if(zoom>=5){ctx.fillStyle='rgba(255, 255, 255, 0.4)';ctx.font='8px Inter, sans-serif';ctx.textAlign='left';const bar=Math.ceil(beatNum/4);const beat=(beatNum-1)%4+1;ctx.fillText(`${bar}:${beat}`,localX+2,9);}}else{ctx.strokeStyle='rgba(255, 255, 255, 0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();}}// Draw snap sub-ticks at the bottom +const secList=track.sections||[];let hitSectionId=null;for(const sec of secList){if(time>=sec.start&&time{const canvasRef=useRef(null);const drawWidth=Math.min(timelineWidth,viewportWidth);useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const scrollLeftVal=scrollLeft||0;const height=canvas.parentElement?canvas.parentElement.clientHeight:40;canvas.width=Math.min(Math.round(drawWidth*dpr),32768);canvas.height=Math.min(Math.round(height*dpr),32768);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${height}px`;ctx.fillStyle='#1a1a2e';ctx.fillRect(0,0,drawWidth,height);const beatDuration=60/bpm;const barDuration=beatDuration*4;const PADDING_LEFT=2;// seconds of empty space on left edge +const tStart=scrollLeftVal/zoom-PADDING_LEFT;const tEnd=(scrollLeftVal+drawWidth)/zoom;const firstBeat=Math.floor(tStart/beatDuration)*beatDuration;for(let t=firstBeat;t<=tEnd;t+=beatDuration){const beatNum=Math.floor(t/beatDuration)+1;const isBar=beatNum%4===1;const localX=(t-tStart)*zoom;if(isBar){ctx.strokeStyle='rgba(255, 255, 255, 0.3)';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();ctx.fillStyle='rgba(255, 255, 255, 0.7)';ctx.font='bold 9px Inter, sans-serif';ctx.textAlign='left';ctx.fillText(`${Math.ceil(beatNum/4)}`,localX+3,11);}else if(zoom>=2){ctx.strokeStyle='rgba(255, 255, 255, 0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();if(zoom>=5){ctx.fillStyle='rgba(255, 255, 255, 0.4)';ctx.font='8px Inter, sans-serif';ctx.textAlign='left';const bar=Math.ceil(beatNum/4);const beat=(beatNum-1)%4+1;ctx.fillText(`${bar}:${beat}`,localX+2,9);}}else{ctx.strokeStyle='rgba(255, 255, 255, 0.08)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(localX,0);ctx.lineTo(localX,height);ctx.stroke();}}// Draw snap sub-ticks at the bottom if(snapValue&&snapValue!=='free'){ctx.strokeStyle='rgba(255, 255, 255, 0.15)';ctx.lineWidth=0.8;let divisor=1;if(snapValue==='1')divisor=1;else if(snapValue==='1/2')divisor=0.5;else if(snapValue==='1/4')divisor=0.25;else if(snapValue==='1/8')divisor=0.125;else if(snapValue==='1/16')divisor=0.0625;else if(snapValue==='1/32')divisor=0.03125;const snapInterval=beatDuration*divisor;if(snapInterval*zoom>=4){const firstSnap=Math.floor(tStart/snapInterval)*snapInterval;for(let t=firstSnap;t<=tEnd;t+=snapInterval){const onBeat=Math.abs(t/beatDuration-Math.round(t/beatDuration))<0.001;if(!onBeat){const localX=(t-tStart)*zoom;ctx.beginPath();ctx.moveTo(localX,height-6);ctx.lineTo(localX,height);ctx.stroke();}}}}ctx.fillStyle='rgba(255, 255, 255, 0.35)';ctx.font='bold 10px Inter, sans-serif';ctx.textAlign='right';ctx.fillText(`${bpm} BPM`,drawWidth-6,12);},[bpm,zoom,timelineWidth,viewportWidth,snapValue,scrollLeft]);return/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{key:"virtual-spacer-tempo",style:{width:`${timelineWidth}px`,height:'1px',pointerEvents:'none'}}),/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,style:{position:'sticky',left:0,imageRendering:'pixelated'},className:"cursor-crosshair",onMouseDown:e=>{const rect=canvasRef.current.getBoundingClientRect();const x=e.clientX-rect.left+(scrollLeft||0);const time=Math.max(0,x/zoom);if(e.shiftKey){e.preventDefault();e.stopPropagation();}if(onRulerMouseDown){onRulerMouseDown(e);}else{onPlayheadSet(time,e.shiftKey);}}}));};// ── Sub-Tab Waveform Component (LOOP_EDITOR_2.md §1.2 & SUB_EDITOR.md) ── const SubTabWaveform=({buffer,subTabId,activeTab,currentTime,selectionStart,selectionEnd,onSelectRange,onPlayheadSet,onContextMenu,activeTool,zoom,timelineWidth,color,name,speed=1.0,onSpeedChange,volumeNodes=[],panningNodes=[],fadeInLen=0,fadeOutLen=0,graphMode=null,onUpdateNodes,onUpdateFade,onModeToggle,selectedNodeTime,setSelectedNodeTime,channelInfo=null})=>{const canvasRef=useRef(null);const isStretchingRef=useRef(false);const stretchStartRef=useRef({mouseX:0,originalDuration:0,originalSpeed:1.0});const subTabAnchorRef=useRef(null);const isStereo=channelInfo?channelInfo.isStereo:buffer&&buffer.numberOfChannels>=2;const channelLabel=channelInfo?channelInfo.label:isStereo?'STEREO':'MONO';// Mono: force volume mode (panning not applicable) const effectiveGraphMode=!isStereo&&graphMode==='pan'?null:graphMode;useEffect(()=>{const canvas=canvasRef.current;if(!canvas||!buffer)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const wrapper=canvas.parentElement?canvas.parentElement.parentElement:null;const scrollLeft=wrapper?wrapper.scrollLeft:0;const vWidth=wrapper?wrapper.clientWidth:1200;const drawWidth=Math.min(timelineWidth,Math.max(vWidth,1200));const h=canvas.parentElement?canvas.parentElement.clientHeight:200;canvas.width=Math.round(drawWidth*dpr);canvas.height=Math.round(h*dpr);ctx.scale(dpr,dpr);ctx.imageSmoothingEnabled=false;canvas.style.position='absolute';canvas.style.left=`${scrollLeft}px`;canvas.style.width=`${drawWidth}px`;canvas.style.height=`${h}px`;ctx.fillStyle='#181818';ctx.fillRect(0,0,drawWidth,h);const data=buffer.getChannelData(0);const len=data.length;if(len===0)return;// Helper to compute volume gain at a specific time in clip using Monotone Cubic Hermite Spline @@ -126,21 +128,23 @@ const[confirmModal,setConfirmModal]=useState(null);const handleDragStart=e=>{con // Form states const[formName,setFormName]=React.useState('');const[formKeywords,setFormKeywords]=React.useState('');const[formCategory,setFormCategory]=React.useState('Orchestral / Film Score');const[formBars,setFormBars]=React.useState(8);const[formBpm,setFormBpm]=React.useState(120);const[formScale,setFormScale]=React.useState('C Minor');const[formTemplate,setFormTemplate]=React.useState('');const savePresets=newPresets=>{setPresets(newPresets);localStorage.setItem('daw_ai_prompt_presets',JSON.stringify(newPresets));};const handleEdit=p=>{setEditingPreset(p);setFormName(p.name);setFormKeywords(p.keywords.join(', '));setFormCategory(p.category);setFormBars(p.default_bars);setFormBpm(p.default_bpm);setFormScale(p.default_scale);setFormTemplate(p.system_instruction_template);};const handleNew=()=>{setEditingPreset('new');setFormName('');setFormKeywords('');setFormCategory('Orchestral / Film Score');setFormBars(8);setFormBpm(120);setFormScale('C Minor');setFormTemplate('');};const handleDelete=id=>{const updated=presets.filter(p=>p.id!==id);savePresets(updated);showToast('Đã xóa preset.','info');};const handleSaveForm=e=>{e.preventDefault();if(!formName.trim()||!formTemplate.trim()){showToast('Vui lòng điền đầy đủ tên và mẫu gợi ý.','warning');return;}const keywordsArray=formKeywords.split(',').map(k=>k.trim()).filter(Boolean);const presetObj={id:editingPreset==='new'?'preset_'+Date.now():editingPreset.id,name:formName.trim(),keywords:keywordsArray,category:formCategory,default_bars:parseInt(formBars)||8,default_bpm:parseInt(formBpm)||120,default_scale:formScale,system_instruction_template:formTemplate.trim(),is_user_defined:true,created_at:editingPreset==='new'?new Date().toISOString():editingPreset.created_at};let updated;if(editingPreset==='new'){updated=[...presets,presetObj];}else{updated=presets.map(p=>p.id===presetObj.id?presetObj:p);}savePresets(updated);setEditingPreset(null);showToast('Đã lưu preset thành công!','success');};const categories=['ALL',...new Set(presets.map(p=>p.category))];const filtered=presets.filter(p=>{const matchesSearch=p.name.toLowerCase().includes(search.toLowerCase())||p.keywords.some(k=>k.toLowerCase().includes(search.toLowerCase()));const matchesCategory=filterCategory==='ALL'||p.category===filterCategory;return matchesSearch&&matchesCategory;});return/*#__PURE__*/React.createElement("div",{className:"fixed inset-0 z-50 flex items-center justify-center bg-black/75 backdrop-blur-sm p-4 animate-fade-in"},/*#__PURE__*/React.createElement("div",{className:"bg-[#18181b] border border-zinc-800 rounded-xl shadow-2xl w-full max-w-4xl max-h-[85vh] flex flex-col overflow-hidden text-zinc-100"},/*#__PURE__*/React.createElement("div",{className:"p-4 border-b border-zinc-800 flex items-center justify-between shrink-0 bg-[#202024]"},/*#__PURE__*/React.createElement("h2",{className:"text-sm font-bold tracking-wider uppercase text-purple-400 flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"sliders",className:"w-4 h-4"}),"AI Prompt Preset Manager"),/*#__PURE__*/React.createElement("button",{onClick:()=>{setEditingPreset(null);onClose();},className:"text-zinc-400 hover:text-zinc-200 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-4 h-4"}))),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-y-auto p-4 flex gap-4 min-h-0"},!editingPreset?/*#__PURE__*/React.createElement(React.Fragment,null,/*#__PURE__*/React.createElement("div",{className:"flex-1 flex flex-col min-w-0"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-2 mb-3 shrink-0"},/*#__PURE__*/React.createElement("input",{type:"text",placeholder:"Tìm kiếm preset hoặc từ khóa...",value:search,onChange:e=>setSearch(e.target.value),className:"flex-1 bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600"}),/*#__PURE__*/React.createElement("select",{value:filterCategory,onChange:e=>setFilterCategory(e.target.value),className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600"},categories.map(c=>/*#__PURE__*/React.createElement("option",{key:c,value:c},c==='ALL'?'Tất cả danh mục':c))),/*#__PURE__*/React.createElement("button",{onClick:handleNew,className:"px-3 py-1 bg-purple-700 hover:bg-purple-600 text-white rounded text-xs font-bold flex items-center gap-1.5 shadow transition shrink-0"},/*#__PURE__*/React.createElement("i",{"data-lucide":"plus",className:"w-3.5 h-3.5"}),"Tạo mới")),/*#__PURE__*/React.createElement("div",{className:"flex-1 border border-zinc-800 rounded bg-[#0f0f12] overflow-y-auto"},filtered.length===0?/*#__PURE__*/React.createElement("div",{className:"p-8 text-center text-zinc-500 text-xs italic"},"Không tìm thấy preset nào."):/*#__PURE__*/React.createElement("table",{className:"w-full text-left text-xs border-collapse"},/*#__PURE__*/React.createElement("thead",{className:"bg-[#1f1f23] text-zinc-400 font-bold border-b border-zinc-800"},/*#__PURE__*/React.createElement("tr",null,/*#__PURE__*/React.createElement("th",{className:"p-2.5 w-1/4"},"Tên Preset"),/*#__PURE__*/React.createElement("th",{className:"p-2.5 w-1/4"},"Từ khóa kích hoạt"),/*#__PURE__*/React.createElement("th",{className:"p-2.5 w-1/6"},"Số Bar"),/*#__PURE__*/React.createElement("th",{className:"p-2.5 w-1/6"},"BPM"),/*#__PURE__*/React.createElement("th",{className:"p-2.5 w-1/6 text-right"},"Hành động"))),/*#__PURE__*/React.createElement("tbody",null,filtered.map(p=>/*#__PURE__*/React.createElement("tr",{key:p.id,className:"border-b border-zinc-800/50 hover:bg-zinc-850"},/*#__PURE__*/React.createElement("td",{className:"p-2.5 font-semibold text-purple-300"},p.name),/*#__PURE__*/React.createElement("td",{className:"p-2.5 text-zinc-400 font-mono text-[11px] truncate max-w-[150px]"},p.keywords.join(', ')),/*#__PURE__*/React.createElement("td",{className:"p-2.5 text-zinc-400"},p.default_bars," Bars"),/*#__PURE__*/React.createElement("td",{className:"p-2.5 text-zinc-400"},p.default_bpm," BPM"),/*#__PURE__*/React.createElement("td",{className:"p-2.5 text-right flex items-center justify-end gap-1.5 h-full"},/*#__PURE__*/React.createElement("button",{type:"button",onClick:()=>handleEdit(p),className:"px-2 py-0.5 bg-zinc-850 hover:bg-zinc-700 text-zinc-300 rounded border border-zinc-700 text-[10px]"},"Sửa"),/*#__PURE__*/React.createElement("button",{type:"button",onClick:()=>handleDelete(p.id),className:"px-2 py-0.5 bg-red-950/40 hover:bg-red-800 text-red-400 rounded border border-red-900 text-[10px]"},"Xóa"))))))))):/*#__PURE__*/React.createElement("form",{onSubmit:handleSaveForm,className:"flex-1 flex flex-col gap-3 min-w-0"},/*#__PURE__*/React.createElement("div",{className:"text-xs font-bold text-zinc-400 shrink-0 border-b border-zinc-800 pb-1"},editingPreset==='new'?"TẠO PRESET MỚI":`SỬA PRESET: ${editingPreset.name}`),/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-2 gap-3"},/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"Tên Preset"),/*#__PURE__*/React.createElement("input",{type:"text",value:formName,onChange:e=>setFormName(e.target.value),className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600 text-zinc-200"})),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"Danh mục"),/*#__PURE__*/React.createElement("input",{type:"text",value:formCategory,onChange:e=>setFormCategory(e.target.value),className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600 text-zinc-200"}))),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"Từ khóa kích hoạt (ngăn cách bằng dấu phẩy)"),/*#__PURE__*/React.createElement("input",{type:"text",value:formKeywords,onChange:e=>setFormKeywords(e.target.value),placeholder:"Ví dụ: epic orchestra, hoành tráng, nhạc phim epic",className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600 text-zinc-200"})),/*#__PURE__*/React.createElement("div",{className:"grid grid-cols-3 gap-3"},/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"Số Bars mặc định"),/*#__PURE__*/React.createElement("input",{type:"number",value:formBars,onChange:e=>setFormBars(e.target.value),className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600 text-zinc-200"})),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"BPM mặc định"),/*#__PURE__*/React.createElement("input",{type:"number",value:formBpm,onChange:e=>setFormBpm(e.target.value),className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600 text-zinc-200"})),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"Âm giai (Scale) mặc định"),/*#__PURE__*/React.createElement("input",{type:"text",value:formScale,onChange:e=>setFormScale(e.target.value),className:"bg-zinc-900 border border-zinc-700 rounded px-2.5 py-1 text-xs outline-none focus:border-purple-600 text-zinc-200"}))),/*#__PURE__*/React.createElement("div",{className:"flex flex-col gap-1 flex-1 min-h-0"},/*#__PURE__*/React.createElement("label",{className:"text-[10px] uppercase font-bold text-zinc-500"},"System Prompt Template / Luật soạn nhạc"),/*#__PURE__*/React.createElement("textarea",{value:formTemplate,onChange:e=>setFormTemplate(e.target.value),rows:6,className:"flex-1 bg-zinc-900 border border-zinc-700 rounded p-2.5 text-xs outline-none focus:border-purple-600 text-zinc-200 font-mono resize-none"})),/*#__PURE__*/React.createElement("div",{className:"flex items-center justify-end gap-2 shrink-0 pt-2 border-t border-zinc-800"},/*#__PURE__*/React.createElement("button",{type:"button",onClick:()=>setEditingPreset(null),className:"px-3 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-zinc-400 border border-zinc-700 rounded text-xs transition"},"Quay lại"),/*#__PURE__*/React.createElement("button",{type:"submit",className:"px-3 py-1.5 bg-purple-700 hover:bg-purple-600 text-white rounded text-xs font-bold shadow transition"},"Lưu Preset")))),/*#__PURE__*/React.createElement("div",{className:"p-4 border-t border-zinc-800 flex justify-end shrink-0 bg-[#202024]"},/*#__PURE__*/React.createElement("button",{onClick:()=>{setEditingPreset(null);onClose();},className:"px-4 py-1.5 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs font-bold shadow transition"},"Đóng"))));};const PianoRollTabEditor=({st,zoom,bpm,viewportWidth,onClose,onUpdateNotes,onSaveNotes,setSubTabs,onPlayPause,onStop,isPlaying,playPreviewNote,showToast})=>{const[activeRollTool,setActiveRollTool]=React.useState('select');const[snapVal,setSnapVal]=React.useState('1/16');const[ccMode,setCcMode]=React.useState('velocity');const[rollZoom,setRollZoom]=React.useState(60);// local horizontal zoom factor const canvasRef=React.useRef(null);const ccCanvasRef=React.useRef(null);const gridScrollRef=React.useRef(null);const keybedRef=React.useRef(null);const rulerScrollRef=React.useRef(null);const NoteHeight=18;const PITCH_START=0;// C0 (render all 128 keys) -const KeybedPixelHeight=(128-PITCH_START)*NoteHeight;const pixelsPerBeat=rollZoom;const timeSigNum=4;const noteMaxBeat=(st.notes||[]).reduce((max,n)=>Math.max(max,(n.start_beat||0)+(n.duration_beats||1)),0);const totalBeats=Math.max(noteMaxBeat+16,64);// at least 64 beats (16 bars) for scrolling -const drawWidth=totalBeats*pixelsPerBeat;const[notes,setNotes]=React.useState(st.notes||[]);const[selectedNoteIds,setSelectedNoteIds]=React.useState([]);const[selectionMarquee,setSelectionMarquee]=React.useState(null);// { startBeat, startPitch, currentBeat, currentPitch } +const KeybedPixelHeight=(128-PITCH_START)*NoteHeight;const pixelsPerBeat=rollZoom;const timeSigNum=4;const noteMaxBeat=(st.notes||[]).reduce((max,n)=>Math.max(max,(n.start_beat||0)+(n.duration_beats||1)),0);const[selectionMarquee,setSelectionMarquee]=React.useState(null);// { startBeat, startPitch, currentBeat, currentPitch } const[draggedNote,setDraggedNote]=React.useState(null);// { mode: 'move'|'resize', idx, startOffsetBeat, originalStart } -const[hoveredResizeIdx,setHoveredResizeIdx]=React.useState(-1);// Undo/redo stacks +const[hoveredResizeIdx,setHoveredResizeIdx]=React.useState(-1);const[rollBeats,setRollBeats]=React.useState(Math.max(noteMaxBeat+16,64));const rollBeatsRef=React.useRef(rollBeats);rollBeatsRef.current=rollBeats;const totalBeats=Math.max(rollBeats,noteMaxBeat+16,64);// at least 64 beats (16 bars) for scrolling +const[gridViewWidth,setGridViewWidth]=React.useState(800);const drawWidth=totalBeats*pixelsPerBeat;const cssWidth=Math.max(drawWidth,gridViewWidth);const[notes,setNotes]=React.useState(st.notes||[]);const[selectedNoteIds,setSelectedNoteIds]=React.useState([]);// Undo/redo stacks const undoStackRef=React.useRef([]);const redoStackRef=React.useRef([]);const notesBeforeDragRef=React.useRef(null);const pushToUndo=React.useCallback(prevNotes=>{undoStackRef.current.push(JSON.parse(JSON.stringify(prevNotes)));redoStackRef.current=[];if(undoStackRef.current.length>50)undoStackRef.current.shift();},[]);const handleUndo=React.useCallback(()=>{const prev=undoStackRef.current.pop();if(!prev)return;redoStackRef.current.push(JSON.parse(JSON.stringify(notes)));setNotes(prev);setSelectedNoteIds([]);},[notes]);const handleRedo=React.useCallback(()=>{const next=redoStackRef.current.pop();if(!next)return;undoStackRef.current.push(JSON.parse(JSON.stringify(notes)));setNotes(next);setSelectedNoteIds([]);},[notes]);React.useEffect(()=>{const handler=e=>{if((e.ctrlKey||e.metaKey)&&e.key==='z'&&!e.shiftKey){e.preventDefault();handleUndo();}else if((e.ctrlKey||e.metaKey)&&(e.key==='y'||e.key==='z'&&e.shiftKey)){e.preventDefault();handleRedo();}else if(e.key==='Delete'||e.key==='Backspace'){if(selectedNoteIds.length>0&&e.target.tagName!=='INPUT'&&e.target.tagName!=='TEXTAREA'){e.preventDefault();pushToUndo(notes);setNotes(prev=>prev.filter(n=>!selectedNoteIds.includes(n.id)));setSelectedNoteIds([]);showToast(`Đã xóa ${selectedNoteIds.length} nốt!`,'info');}}};window.addEventListener('keydown',handler);return()=>window.removeEventListener('keydown',handler);},[handleUndo,handleRedo,notes,selectedNoteIds]);React.useEffect(()=>{onUpdateNotes(st.id,notes);},[notes]);const getSnapBeat=(beat,mode)=>{let q=0.25;if(mode==='free')return beat;if(mode==='1')q=4.0;else if(mode==='1/2')q=2.0;else if(mode==='1/4')q=1.0;else if(mode==='1/8')q=0.5;else if(mode==='1/16')q=0.25;else if(mode==='1/32')q=0.125;return Math.round(beat/q)*q;};const getSnapDuration=mode=>{if(mode==='free')return 0.25;if(mode==='1')return 4.0;if(mode==='1/2')return 2.0;if(mode==='1/4')return 1.0;if(mode==='1/8')return 0.5;if(mode==='1/16')return 0.25;if(mode==='1/32')return 0.125;return 0.25;};// Local Zoom Wheel Event handler to block browser page zoom -React.useEffect(()=>{const handleWheelRaw=e=>{if(e.ctrlKey){e.preventDefault();const zoomFactor=e.deltaY<0?1.15:0.85;setRollZoom(prev=>Math.max(15,Math.min(250,prev*zoomFactor)));}};const container=gridScrollRef.current;if(container){container.addEventListener('wheel',handleWheelRaw,{passive:false});}return()=>{if(container){container.removeEventListener('wheel',handleWheelRaw);}};},[]);// Shift + Scroll event listener to adjust velocity -React.useEffect(()=>{const handleCanvasWheel=e=>{if(e.shiftKey){e.preventDefault();const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);// Find note under cursor -const noteUnderCursor=notes.find(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beat0){setNotes(prev=>prev.map(n=>{if(!selectedNoteIds.includes(n.id))return n;const newVel=Math.max(0.1,Math.min(1.0,(n.velocity??0.8)+delta));return{...n,velocity:newVel};}));}else if(noteUnderCursor){setNotes(prev=>prev.map(n=>{if(n.id!==noteUnderCursor.id)return n;const newVel=Math.max(0.1,Math.min(1.0,(n.velocity??0.8)+delta));if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(n.pitch,newVel*127,300,ctx.currentTime,st.instrumentProgram,null);}return{...n,velocity:newVel};}));}}};const canvas=canvasRef.current;if(canvas){canvas.addEventListener('wheel',handleCanvasWheel,{passive:false});}return()=>{if(canvas){canvas.removeEventListener('wheel',handleCanvasWheel);}};},[notes,selectedNoteIds,pixelsPerBeat]);React.useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=128*NoteHeight;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);// Draw background rows +React.useEffect(()=>{const handleWheelRaw=e=>{if(e.ctrlKey){e.preventDefault();const zoomFactor=e.deltaY<0?1.15:0.85;setRollZoom(prev=>Math.max(15,Math.min(250,prev*zoomFactor)));}};const container=gridScrollRef.current;if(container){container.addEventListener('wheel',handleWheelRaw,{passive:false});}return()=>{if(container){container.removeEventListener('wheel',handleWheelRaw);}};},[]);// Shift + Scroll event listener: fast‑forward playhead + play notes +React.useEffect(()=>{const handleCanvasWheel=e=>{if(e.shiftKey){e.preventDefault();const scrollDelta=e.deltaY;const beatSec=60.0/(parseInt(bpm)||120);const step=scrollDelta<0?-0.25:0.25;// 1/4 beat per notch +const currentBeat=(st.currentTime||0)/beatSec;const maxBeats=totalBeats;const newBeat=Math.max(0,Math.min(maxBeats,currentBeat+step));const newTime=newBeat*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:newTime}:s));// Play notes at the new beat position +if(window.SonicSF){const ctx=getAudioContext();const playing=notes.filter(n=>newBeat>=n.start_beat&&newBeat{window.SonicSF.playNote(n.pitch,(n.velocity||0.8)*127,200,ctx.currentTime,st.instrumentProgram,null);});}}};const canvas=canvasRef.current;if(canvas){canvas.addEventListener('wheel',handleCanvasWheel,{passive:false});}return()=>{if(canvas){canvas.removeEventListener('wheel',handleCanvasWheel);}};},[notes,st.currentTime,pixelsPerBeat,st.id,totalBeats,bpm]);// Track grid container width for zoom fill +React.useEffect(()=>{const el=gridScrollRef.current;if(!el)return;const ro=new ResizeObserver(entries=>{for(const entry of entries)setGridViewWidth(entry.contentRect.width);});ro.observe(el);setGridViewWidth(el.clientWidth);return()=>ro.disconnect();},[]);React.useEffect(()=>{const canvas=canvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=128*NoteHeight;const canvasW=Math.max(drawWidth,gridViewWidth);canvas.width=canvasW*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);// Draw background rows for(let pitch=0;pitch<128;pitch++){const y=(127-pitch)*NoteHeight;const isBlack=[1,3,6,8,10].includes(pitch%12);ctx.fillStyle=isBlack?'#1a1a1e':'#25252a';ctx.fillRect(0,y,drawWidth,NoteHeight);ctx.strokeStyle='#2d2d35';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(0,y+NoteHeight);ctx.lineTo(drawWidth,y+NoteHeight);ctx.stroke();}// Draw snap lines -let snapBeats=0.25;if(snapVal==='1')snapBeats=4.0;else if(snapVal==='1/2')snapBeats=2.0;else if(snapVal==='1/4')snapBeats=1.0;else if(snapVal==='1/8')snapBeats=0.5;else if(snapVal==='1/16')snapBeats=0.25;else if(snapVal==='1/32')snapBeats=0.125;for(let beat=0;beat<=totalBeats;beat+=snapBeats){const x=beat*pixelsPerBeat;const isBar=beat%timeSigNum===0;ctx.strokeStyle=isBar?'#444450':'#2d2d35';ctx.lineWidth=isBar?1.2:0.6;ctx.beginPath();ctx.moveTo(x,0);ctx.lineTo(x,h);ctx.stroke();}// Draw notes with velocity layer representation +let snapBeats=0.25;if(snapVal==='1')snapBeats=4.0;else if(snapVal==='1/2')snapBeats=2.0;else if(snapVal==='1/4')snapBeats=1.0;else if(snapVal==='1/8')snapBeats=0.5;else if(snapVal==='1/16')snapBeats=0.25;else if(snapVal==='1/32')snapBeats=0.125;const maxBeatPx=drawWidth;const gridEndBeat=Math.max(totalBeats,Math.ceil(canvasW/pixelsPerBeat)+4);for(let beat=0;beat<=gridEndBeat;beat+=snapBeats){const x=beat*pixelsPerBeat;if(x>drawWidth)break;const isBar=beat%timeSigNum===0;ctx.strokeStyle=isBar?'#444450':'#2d2d35';ctx.lineWidth=isBar?1.2:0.6;ctx.beginPath();ctx.moveTo(x,0);ctx.lineTo(x,h);ctx.stroke();}// Draw notes with velocity layer representation notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat;const y=(127-note.pitch)*NoteHeight;const w=note.duration_beats*pixelsPerBeat;const isSelected=selectedNoteIds.includes(note.id);// Draw background of note ctx.fillStyle=isSelected?'rgba(59, 130, 246, 0.4)':'rgba(234, 179, 8, 0.25)';ctx.strokeStyle=isSelected?'#3b82f6':'#ca8a04';ctx.lineWidth=isSelected?1.5:1;ctx.fillRect(x+1,y+1,w-2,NoteHeight-2);ctx.strokeRect(x+1,y+1,w-2,NoteHeight-2);// Draw velocity layer (solid yellow/blue bar inside, proportional to velocity) const vel=note.velocity!==undefined?note.velocity:0.8;const velW=Math.max(2,(w-2)*vel);ctx.fillStyle=isSelected?'#3b82f6':'#eab308';ctx.fillRect(x+1,y+1,velW,NoteHeight-2);});// Draw selection marquee if active if(selectionMarquee){const minBeat=Math.min(selectionMarquee.startBeat,selectionMarquee.currentBeat);const maxBeat=Math.max(selectionMarquee.startBeat,selectionMarquee.currentBeat);const minPitch=Math.min(selectionMarquee.startPitch,selectionMarquee.currentPitch);const maxPitch=Math.max(selectionMarquee.startPitch,selectionMarquee.currentPitch);const mx=minBeat*pixelsPerBeat;const my=(127-maxPitch)*NoteHeight;const mw=(maxBeat-minBeat)*pixelsPerBeat;const mh=(maxPitch-minPitch+1)*NoteHeight;ctx.fillStyle='rgba(59, 130, 246, 0.15)';ctx.strokeStyle='#3b82f6';ctx.lineWidth=1;ctx.setLineDash([4,4]);ctx.fillRect(mx,my,mw,mh);ctx.strokeRect(mx,my,mw,mh);ctx.setLineDash([]);}// Draw playhead -if(st.currentTime!==undefined&&st.currentTime!==null&&st.currentTime>=0){const phBeat=st.currentTime/(60.0/(parseInt(bpm)||120));const phX=phBeat*pixelsPerBeat;if(phX>=0&&phX<=drawWidth){ctx.strokeStyle='#f59e0b';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(phX,0);ctx.lineTo(phX,(128-PITCH_START)*NoteHeight);ctx.stroke();}}},[notes,snapVal,rollZoom,selectedNoteIds,selectionMarquee,st.currentTime,bpm]);React.useEffect(()=>{const canvas=ccCanvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=80;canvas.width=drawWidth*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);ctx.fillStyle='#161616';ctx.fillRect(0,0,drawWidth,h);ctx.strokeStyle='#252525';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(0,h/2);ctx.lineTo(drawWidth,h/2);ctx.stroke();notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat+note.duration_beats*pixelsPerBeat/2;let val=note.velocity!==undefined?note.velocity:0.8;if(ccMode==='pan'){val=(note.pan!==undefined?note.pan:0.0)*0.5+0.5;}const stemH=val*(h-20)+10;const y=h-stemH;ctx.strokeStyle=ccMode==='pan'?'#a78bfa':'#fbbf24';ctx.lineWidth=2.5;ctx.beginPath();ctx.moveTo(x,h);ctx.lineTo(x,y);ctx.stroke();ctx.fillStyle=ccMode==='pan'?'#c084fc':'#fbbf24';ctx.beginPath();ctx.arc(x,y,3.5,0,2*Math.PI);ctx.fill();});},[notes,ccMode,rollZoom]);React.useEffect(()=>{const scrollToC3=()=>{if(gridScrollRef.current){const ch=gridScrollRef.current.clientHeight||400;gridScrollRef.current.scrollTop=Math.max(0,(127-48)*NoteHeight+NoteHeight-ch);}};scrollToC3();const timer=setTimeout(scrollToC3,100);return()=>clearTimeout(timer);},[]);const handleGridMouseDown=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);// Right click -> Quick delete note or start erase sweep +if(st.currentTime!==undefined&&st.currentTime!==null&&st.currentTime>=0){const phBeat=st.currentTime/(60.0/(parseInt(bpm)||120));const phX=phBeat*pixelsPerBeat;if(phX>=0&&phX<=drawWidth){ctx.strokeStyle='#f59e0b';ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(phX,0);ctx.lineTo(phX,(128-PITCH_START)*NoteHeight);ctx.stroke();}}},[notes,snapVal,rollZoom,selectedNoteIds,selectionMarquee,st.currentTime,bpm]);React.useEffect(()=>{const canvas=ccCanvasRef.current;if(!canvas)return;const ctx=canvas.getContext('2d');const dpr=window.devicePixelRatio||1;const h=80;canvas.width=Math.max(drawWidth,gridViewWidth)*dpr;canvas.height=h*dpr;ctx.scale(dpr,dpr);ctx.fillStyle='#161616';ctx.fillRect(0,0,drawWidth,h);ctx.strokeStyle='#252525';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(0,h/2);ctx.lineTo(drawWidth,h/2);ctx.stroke();notes.forEach(note=>{const x=note.start_beat*pixelsPerBeat+note.duration_beats*pixelsPerBeat/2;let val=note.velocity!==undefined?note.velocity:0.8;if(ccMode==='pan'){val=(note.pan!==undefined?note.pan:0.0)*0.5+0.5;}const stemH=val*(h-20)+10;const y=h-stemH;ctx.strokeStyle=ccMode==='pan'?'#a78bfa':'#fbbf24';ctx.lineWidth=2.5;ctx.beginPath();ctx.moveTo(x,h);ctx.lineTo(x,y);ctx.stroke();ctx.fillStyle=ccMode==='pan'?'#c084fc':'#fbbf24';ctx.beginPath();ctx.arc(x,y,3.5,0,2*Math.PI);ctx.fill();});},[notes,ccMode,rollZoom]);React.useEffect(()=>{const scrollToC3=()=>{if(gridScrollRef.current){const ch=gridScrollRef.current.clientHeight||400;gridScrollRef.current.scrollTop=Math.max(0,(127-48)*NoteHeight+NoteHeight-ch);}};scrollToC3();const timer=setTimeout(scrollToC3,100);return()=>clearTimeout(timer);},[]);const handleGridMouseDown=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(scaleMenuPos)setScaleMenuPos(null);// Right click -> Quick delete note or start erase sweep if(e.button===2){e.preventDefault();const clickedNote=notes.find(n=>{return pitch===n.pitch&&beat>=n.start_beat&&beatprev.filter(n=>n.id!==clickedNote.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==clickedNote.id));showToast('Đã xóa nốt!','info');return;}// Start erase sweep (right-click on empty space only) notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));setDraggedNote({mode:'erase_sweep',visitedPitches:[pitch]});return;}if(e.button!==0)return;// Only handle left click // Check if clicking on an existing note @@ -151,9 +155,10 @@ setSelectedNoteIds([]);setSelectionMarquee({startBeat:beat,startPitch:pitch,curr if(e.ctrlKey&&e.shiftKey){if(clickedNoteIdx!==-1){pushToUndo(notes);const clickedNote=notes[clickedNoteIdx];const idsToClone=[...new Set([...selectedNoteIds,clickedNote.id])];const clones=notes.filter(n=>idsToClone.includes(n.id)).map(n=>({...JSON.parse(JSON.stringify(n)),id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)}));setNotes(prev=>[...prev,...clones]);const cloneIds=clones.map(c=>c.id);setSelectedNoteIds(cloneIds);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const cloneOffsets=clones.map(n=>({id:n.id,originalStartBeat:n.start_beat,originalPitch:n.pitch}));setDraggedNote({mode:'move',idx:-1,startOffsetBeat:beat,startOffsetPitch:pitch,selectedNotesOffset:cloneOffsets});}return;}// Hovered resize edge (Alt+resize for scaling) if(hoveredResizeIdx!==-1&&e.altKey){pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const allSelected=[...new Set(selectedNoteIds.length>0?selectedNoteIds:[notes[hoveredResizeIdx].id])];const selectedNotes=notes.filter(n=>allSelected.includes(n.id));const firstStart=Math.min(...selectedNotes.map(n=>n.start_beat));const draggedNote=notes[hoveredResizeIdx];setDraggedNote({mode:'scale',idx:hoveredResizeIdx,originalEnd:draggedNote.start_beat+draggedNote.duration_beats,firstStart:firstStart,selectedNoteIds:allSelected});return;}// Hovered resize edge (normal resize) if(hoveredResizeIdx!==-1){pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));setDraggedNote({mode:'resize',idx:hoveredResizeIdx,originalStart:notes[hoveredResizeIdx].start_beat});return;}if(clickedNoteIdx!==-1){// Click on existing note: drag-move -const clickedNote=notes[clickedNoteIdx];let nextSelectedIds;if(!selectedNoteIds.includes(clickedNote.id)){nextSelectedIds=[clickedNote.id];setSelectedNoteIds(nextSelectedIds);}else{nextSelectedIds=selectedNoteIds;}pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const selectedNotesOffset=notes.filter(n=>nextSelectedIds.includes(n.id)).map(n=>({id:n.id,originalStartBeat:n.start_beat,originalPitch:n.pitch}));setDraggedNote({mode:'move',idx:clickedNoteIdx,startOffsetBeat:beat-clickedNote.start_beat,startOffsetPitch:pitch-clickedNote.pitch,selectedNotesOffset:selectedNotesOffset});}else{// Click on empty space: DRAW a new note (brush mode with visitedPitches) -pushToUndo(notes);const start=getSnapBeat(beat,snapVal);const initialDur=getSnapDuration(snapVal);const noteId='note_'+Date.now()+Math.random().toString(36).substr(2,5);const newNote={id:noteId,pitch:pitch,start_beat:start,duration_beats:initialDur,velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds([noteId]);setDraggedNote({mode:'draw',idx:-1,startOffsetBeat:start,startOffsetPitch:pitch,drawNoteId:noteId,drawDuration:initialDur,visitedPitches:[pitch],initialBeat:start,initialPitch:pitch});// Play the note with SoundFont -if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(pitch,0.8,300,ctx.currentTime,undefined,null);}}};const handleGridMouseMove=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(selectionMarquee){const marquee={...selectionMarquee,currentBeat:beat,currentPitch:pitch};setSelectionMarquee(marquee);const minBeat=Math.min(marquee.startBeat,marquee.currentBeat);const maxBeat=Math.max(marquee.startBeat,marquee.currentBeat);const minPitch=Math.min(marquee.startPitch,marquee.currentPitch);const maxPitch=Math.max(marquee.startPitch,marquee.currentPitch);const insideIds=notes.filter(n=>n.start_beat>=minBeat&&n.start_beat<=maxBeat&&n.pitch>=minPitch&&n.pitch<=maxPitch).map(n=>n.id);setSelectedNoteIds(insideIds);return;}if(!draggedNote){let foundIdx=-1;for(let i=0;i=n.start_beat){foundIdx=i;break;}}}if(foundIdx!==-1){canvas.style.cursor='ew-resize';setHoveredResizeIdx(foundIdx);}else{canvas.style.cursor=activeRollTool==='eraser'?'pointer':'crosshair';setHoveredResizeIdx(-1);}return;}if(draggedNote.mode==='draw'){const rawDur=beat-draggedNote.startOffsetBeat;const newDur=getSnapBeat(Math.max(0.125,rawDur),snapVal);const visited=draggedNote.visitedPitches||[];if(visited.length<=1){setNotes(prev=>prev.map(n=>{if(n.id!==draggedNote.drawNoteId)return n;return{...n,duration_beats:newDur};}));}if(!visited.includes(pitch)){const newPitches=[...visited,pitch];const totalSpan=Math.max(0.125,beat-draggedNote.initialBeat);const perNoteDur=totalSpan/newPitches.length;const brushIds=draggedNote.brushIds||[];setNotes(prev=>{const cleaned=prev.filter(n=>!brushIds.includes(n.id)&&n.id!==draggedNote.drawNoteId);const brushNotes=newPitches.map((p,i)=>({id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)+'_'+i,pitch:p,start_beat:draggedNote.initialBeat+i*perNoteDur,duration_beats:Math.max(0.125,perNoteDur*0.9),velocity:0.8,pan:0.0}));const newBrushIds=brushNotes.map(bn=>bn.id);setSelectedNoteIds(newBrushIds);draggedNote.brushIds=newBrushIds;draggedNote.visitedPitches=newPitches;return[...cleaned,...brushNotes];});}return;}if(draggedNote.mode==='erase_sweep'){const erased=draggedNote.erasedIds||[];const target=notes.find(n=>n.pitch===pitch&&beat>=n.start_beat&&beatprev.filter(n=>n.id!==target.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==target.id));}return;}if(draggedNote.mode==='scale'){const newEnd=getSnapBeat(Math.max(draggedNote.firstStart+0.125,beat),snapVal);const range=draggedNote.originalEnd-draggedNote.firstStart;if(range<=0)return;const scaleFactor=Math.max(0.01,(newEnd-draggedNote.firstStart)/range);const ids=draggedNote.selectedNoteIds||[];const firstStart=draggedNote.firstStart;const notesBefore=notesBeforeDragRef.current;setNotes(prev=>prev.map(n=>{if(!ids.includes(n.id))return n;const orig=notesBefore?notesBefore.find(o=>o.id===n.id):null;const origStart=orig?orig.start_beat:n.start_beat;const origDur=orig?orig.duration_beats:n.duration_beats;const relStart=origStart-firstStart;const relEnd=relStart+origDur;return{...n,start_beat:firstStart+relStart*scaleFactor,duration_beats:Math.max(0.125,relEnd*scaleFactor-relStart*scaleFactor)};}));return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapVal);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else if(draggedNote.mode==='move'){const firstOffset=draggedNote.selectedNotesOffset&&draggedNote.selectedNotesOffset[0];if(!firstOffset)return;const firstNote=notes.find(n=>n.id===firstOffset.id);if(!firstNote)return;const deltaBeat=getSnapBeat(beat-draggedNote.startOffsetBeat,snapVal)-firstOffset.originalStartBeat;const deltaPitch=Math.round(pitch-draggedNote.startOffsetPitch)-firstOffset.originalPitch;setNotes(prev=>prev.map(n=>{const offset=draggedNote.selectedNotesOffset.find(o=>o.id===n.id);if(!offset)return n;return{...n,start_beat:getSnapBeat(Math.max(0,offset.originalStartBeat+deltaBeat),snapVal),pitch:Math.max(0,Math.min(127,offset.originalPitch+deltaPitch))};}));}};const handleGridMouseUp=()=>{setDraggedNote(null);setSelectionMarquee(null);};const handleContextMenu=e=>{e.preventDefault();};const handleCCMouseDown=e=>{const canvas=ccCanvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const h=rect.height;const beat=x/pixelsPerBeat;let noteIdx=notes.findIndex(n=>beat>=n.start_beat&&beat<=n.start_beat+n.duration_beats);if(noteIdx===-1){let minDistance=Infinity;notes.forEach((n,idx)=>{const center=n.start_beat+n.duration_beats/2;const dist=Math.abs(center-beat);if(distprev.map((n,idx)=>{if(idx!==noteIdx)return n;if(ccMode==='pan'){return{...n,pan:(val-0.5)*2.0};}else{return{...n,velocity:val};}}));}};const renderKeybed=()=>{const keys=[];for(let pitch=127;pitch>=PITCH_START;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${notesArray[pitch%12]}${octave}`;const showLabel=pitch%12===0;keys.push(/*#__PURE__*/React.createElement("div",{key:pitch,style:{height:`${NoteHeight}px`},className:`w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition cursor-pointer ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900 hover:bg-zinc-800':'bg-white text-zinc-800 border-r border-zinc-400 hover:bg-amber-100'}`,onMouseDown:e=>{e.stopPropagation();try{if(window.SonicSF){window.SonicSF.playNote(pitch,100,500,undefined,st.instrumentProgram,null);}}catch(err){console.error('playNote error:',err);}}},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}if(rulerScrollRef.current){rulerScrollRef.current.scrollLeft=e.currentTarget.scrollLeft;}};const handleKeybedScroll=e=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=e.currentTarget.scrollTop;}};const renderBarLabels=()=>{const labels=[];const barsCount=Math.ceil(totalBeats/4);for(let bar=0;bar{e.stopPropagation();const barTime=bar*4*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:barTime}:s));}},`Bar ${bar}`));}return labels;};const beatSec=60.0/(parseInt(bpm)||120);const playHeadX=(st.currentTime||0)/beatSec*pixelsPerBeat;return React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col"},React.createElement("div",{className:"h-10 bg-[#282828] border-b border-zinc-900 flex items-center justify-between px-4 shrink-0 text-slate-200"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-4"},/*#__PURE__*/React.createElement("span",{className:"text-xs font-bold text-yellow-500 uppercase flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"music",className:"w-3.5 h-3.5"}),st.label),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['select','pen','eraser'].map(tool=>/*#__PURE__*/React.createElement("button",{key:tool,onClick:()=>setActiveRollTool(tool),className:`px-2.5 py-1 rounded capitalize ${activeRollTool===tool?'bg-yellow-600 text-white font-bold':'text-zinc-400 hover:text-zinc-200'}`},tool))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 text-xs"},/*#__PURE__*/React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap:"),/*#__PURE__*/React.createElement("select",{value:snapVal,onChange:e=>setSnapVal(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['free','1','1/2','1/4','1/8','1/16','1/32'].map(v=>/*#__PURE__*/React.createElement("option",{key:v,value:v},v)))),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['velocity','pan'].map(mode=>/*#__PURE__*/React.createElement("button",{key:mode,onClick:()=>setCcMode(mode),className:`px-2.5 py-1 rounded capitalize ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>onSaveNotes(st.id,st.trackId,st.target_id,notes),className:"px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},/*#__PURE__*/React.createElement("i",{"data-lucide":"save",className:"w-3 h-3"}),"Lưu"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng"))),/*#__PURE__*/React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),/*#__PURE__*/React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden",onMouseDown:e=>{const rect=e.currentTarget.getBoundingClientRect();const x=e.clientX-rect.left+e.currentTarget.scrollLeft;const clickBeat=x/pixelsPerBeat;const clickTime=clickBeat*beatSec;if(clickTime>=0){setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:clickTime}:s));}}},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:'100%'},className:"relative h-full font-mono text-[9px] text-zinc-500 font-bold"},renderBarLabels()))),/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative"},/*#__PURE__*/React.createElement("div",{ref:keybedRef,onScroll:handleKeybedScroll,className:"w-[60px] overflow-y-auto flex flex-col border-r border-zinc-900 shrink-0",style:{scrollbarWidth:'none',msOverflowStyle:'none'}},renderKeybed()),/*#__PURE__*/React.createElement("div",{ref:gridScrollRef,onScroll:handleScroll,className:"flex-1 overflow-auto bg-[#141414] min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:`${(128-PITCH_START)*NoteHeight}px`},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,onMouseDown:handleGridMouseDown,onMouseMove:handleGridMouseMove,onMouseUp:handleGridMouseUp,onMouseLeave:handleGridMouseUp,onContextMenu:handleContextMenu,className:"absolute inset-0 cursor-crosshair"})))),/*#__PURE__*/React.createElement("div",{className:"h-20 bg-[#161616] border-t border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 flex items-center justify-center text-[10px] text-zinc-500 font-mono shrink-0 font-bold"},ccMode.toUpperCase()),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-x-hidden min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${drawWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,className:"absolute inset-0 cursor-ns-resize"})))));};const serializeTracksList=(tracksList,secondsPerBar)=>{return(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${t.serverFileId}`:"",sample_rate:c.buffer?c.buffer.sampleRate:44100,channels:c.buffer?c.buffer.numberOfChannels:2,gain:1.0}});});}else if(trackType==="MIDI"&&t.midiItems){t.midiItems.forEach(m=>{items.push({id:m.id,name:m.name||"MIDI Item",type:"MIDI_ITEM",start_bar:m.startTime/secondsPerBar,duration_bars:m.duration?m.duration/secondsPerBar:4.0,clip_start_offset_bars:0.0,source_data:{total_buffer_bars:m.duration?m.duration/secondsPerBar:8.0,notes:(m.notes||[]).map(n=>({id:n.id||'note_'+Math.random().toString(36).substr(2,9),pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))}});});}else if(trackType==="SECTION"&&t.sections){t.sections.forEach(s=>{items.push({id:s.id,name:s.name||"Section Item",type:"SECTION_ITEM",start_bar:s.start/secondsPerBar,duration_bars:s.duration/secondsPerBar,clip_start_offset_bars:0.0,source_data:{referenced_section_id:s.sectionId||s.id}});});}return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,instrument_id:t.instrumentId||null,instrument_program:t.instrumentProgram!==undefined?t.instrumentProgram:null,instrument_name:t.instrumentName||null,items:items};});};const deserializeTracksList=(schemaTracks,secondsPerBar,sectionStore)=>{return(schemaTracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};clips.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,speed:1.0});}else if(item.type==="MIDI_ITEM"){const src=item.source_data||{};midiItems.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,notes:(src.notes||[]).map(n=>({id:n.id,pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))});}else if(item.type==="SECTION_ITEM"){const src=item.source_data||{};const secId=src.referenced_section_id;const secContainer=sectionStore?sectionStore[secId]:null;sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:secId,tracks:secContainer?deserializeTracksList(secContainer.tracks,secondsPerBar,sectionStore):null});}});return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,color:t.id==='1'?'#0f766e':'#1d4ed8',markers:[],serverFileId:t.items&&t.items.find(i=>i.type==="AUDIO_ITEM")?.source_data?.audio_file_url?.split("/").pop()||null,clips:clips,sections:sections,midiItems:midiItems,instrumentId:t.instrument_id||null,instrumentProgram:t.instrument_program!==null?t.instrument_program:undefined,instrumentName:t.instrument_name||null};});};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=serializeTracksList(tracksList,secondsPerBar);const sectionStore={};// Helper: compute length_bars from tracks content +const clickedNote=notes[clickedNoteIdx];let nextSelectedIds;if(!selectedNoteIds.includes(clickedNote.id)){nextSelectedIds=[clickedNote.id];setSelectedNoteIds(nextSelectedIds);}else{// Note already selected -- only play preview, don't drag +if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(clickedNote.pitch,100,300,ctx.currentTime,st.instrumentProgram,null);}return;}pushToUndo(notes);notesBeforeDragRef.current=JSON.parse(JSON.stringify(notes));const selectedNotesOffset=notes.filter(n=>nextSelectedIds.includes(n.id)).map(n=>({id:n.id,originalStartBeat:n.start_beat,originalPitch:n.pitch}));setDraggedNote({mode:'move',idx:clickedNoteIdx,startOffsetBeat:beat-clickedNote.start_beat,startOffsetPitch:pitch-clickedNote.pitch,selectedNotesOffset:selectedNotesOffset});}else{// Click on empty space: DRAW a new note (brush mode with visitedPitches) +pushToUndo(notes);const start=getSnapBeat(beat,snapVal);const initialDur=getSnapDuration(snapVal);const noteId='note_'+Date.now()+Math.random().toString(36).substr(2,5);const newNote={id:noteId,pitch:snapPitchToScale(pitch,selectedScale),start_beat:start,duration_beats:initialDur,velocity:0.8,pan:0.0};setNotes(prev=>[...prev,newNote]);setSelectedNoteIds([noteId]);setDraggedNote({mode:'draw',idx:-1,startOffsetBeat:start,startOffsetPitch:snapPitchToScale(pitch,selectedScale),drawNoteId:noteId,drawDuration:initialDur,visitedPitches:[snapPitchToScale(pitch,selectedScale)],initialBeat:start,initialPitch:snapPitchToScale(pitch,selectedScale)});// Play the note with SoundFont +if(window.SonicSF){const ctx=getAudioContext();window.SonicSF.playNote(pitch,0.8,300,ctx.currentTime,undefined,null);}}};const handleGridMouseMove=e=>{const canvas=canvasRef.current;if(!canvas)return;const rect=canvas.getBoundingClientRect();const x=e.clientX-rect.left;const y=e.clientY-rect.top;const beat=x/pixelsPerBeat;const pitch=127-Math.floor(y/NoteHeight);if(selectionMarquee){const marquee={...selectionMarquee,currentBeat:beat,currentPitch:pitch};setSelectionMarquee(marquee);const minBeat=Math.min(marquee.startBeat,marquee.currentBeat);const maxBeat=Math.max(marquee.startBeat,marquee.currentBeat);const minPitch=Math.min(marquee.startPitch,marquee.currentPitch);const maxPitch=Math.max(marquee.startPitch,marquee.currentPitch);const insideIds=notes.filter(n=>n.start_beat>=minBeat&&n.start_beat<=maxBeat&&n.pitch>=minPitch&&n.pitch<=maxPitch).map(n=>n.id);setSelectedNoteIds(insideIds);return;}if(!draggedNote){let foundIdx=-1;for(let i=0;i=n.start_beat){foundIdx=i;break;}}}if(foundIdx!==-1){canvas.style.cursor='ew-resize';setHoveredResizeIdx(foundIdx);}else{canvas.style.cursor=activeRollTool==='eraser'?'pointer':'crosshair';setHoveredResizeIdx(-1);}return;}if(draggedNote.mode==='draw'){const rawDur=beat-draggedNote.startOffsetBeat;const newDur=getSnapBeat(Math.max(0.125,rawDur),snapVal);const visited=draggedNote.visitedPitches||[];if(visited.length<=1){setNotes(prev=>prev.map(n=>{if(n.id!==draggedNote.drawNoteId)return n;return{...n,duration_beats:newDur};}));}const snappedPitch=snapPitchToScale(pitch,selectedScale);if(!visited.includes(snappedPitch)){const newPitches=[...visited,snappedPitch];const totalSpan=Math.max(0.125,beat-draggedNote.initialBeat);const perNoteDur=totalSpan/newPitches.length;const brushIds=draggedNote.brushIds||[];setNotes(prev=>{const cleaned=prev.filter(n=>!brushIds.includes(n.id)&&n.id!==draggedNote.drawNoteId);const brushNotes=newPitches.map((p,i)=>({id:'note_'+Date.now()+Math.random().toString(36).substr(2,8)+'_'+i,pitch:p,start_beat:draggedNote.initialBeat+i*perNoteDur,duration_beats:Math.max(0.125,perNoteDur*0.9),velocity:0.8,pan:0.0}));const newBrushIds=brushNotes.map(bn=>bn.id);setSelectedNoteIds(newBrushIds);draggedNote.brushIds=newBrushIds;draggedNote.visitedPitches=newPitches;return[...cleaned,...brushNotes];});}return;}if(draggedNote.mode==='erase_sweep'){const erased=draggedNote.erasedIds||[];const target=notes.find(n=>n.pitch===pitch&&beat>=n.start_beat&&beatprev.filter(n=>n.id!==target.id));setSelectedNoteIds(prev=>prev.filter(id=>id!==target.id));}return;}if(draggedNote.mode==='scale'){const newEnd=getSnapBeat(Math.max(draggedNote.firstStart+0.125,beat),snapVal);const range=draggedNote.originalEnd-draggedNote.firstStart;if(range<=0)return;const scaleFactor=Math.max(0.01,(newEnd-draggedNote.firstStart)/range);const ids=draggedNote.selectedNoteIds||[];const firstStart=draggedNote.firstStart;const notesBefore=notesBeforeDragRef.current;setNotes(prev=>prev.map(n=>{if(!ids.includes(n.id))return n;const orig=notesBefore?notesBefore.find(o=>o.id===n.id):null;const origStart=orig?orig.start_beat:n.start_beat;const origDur=orig?orig.duration_beats:n.duration_beats;const relStart=origStart-firstStart;const relEnd=relStart+origDur;return{...n,start_beat:firstStart+relStart*scaleFactor,duration_beats:Math.max(0.125,relEnd*scaleFactor-relStart*scaleFactor)};}));return;}if(draggedNote.mode==='resize'){const newDuration=getSnapBeat(Math.max(0.125,beat-draggedNote.originalStart),snapVal);setNotes(prev=>prev.map((n,idx)=>{if(idx!==draggedNote.idx)return n;return{...n,duration_beats:newDuration};}));}else if(draggedNote.mode==='move'){const firstOffset=draggedNote.selectedNotesOffset&&draggedNote.selectedNotesOffset[0];if(!firstOffset)return;const firstNote=notes.find(n=>n.id===firstOffset.id);if(!firstNote)return;const deltaBeat=getSnapBeat(beat-draggedNote.startOffsetBeat,snapVal)-firstOffset.originalStartBeat;const deltaPitch=Math.round(pitch-draggedNote.startOffsetPitch)-firstOffset.originalPitch;setNotes(prev=>prev.map(n=>{const offset=draggedNote.selectedNotesOffset.find(o=>o.id===n.id);if(!offset)return n;return{...n,start_beat:getSnapBeat(Math.max(0,offset.originalStartBeat+deltaBeat),snapVal),pitch:Math.max(0,Math.min(127,offset.originalPitch+deltaPitch))};}));}};const handleGridMouseUp=()=>{setDraggedNote(null);setSelectionMarquee(null);};const handleContextMenu=e=>{e.preventDefault();};const ccDragRef=React.useRef(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;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(dist{if(idx===-1)return;setNotes(prev=>prev.map((n,i)=>{if(i!==idx)return n;if(ccMode==='pan'){return{...n,pan:(v-0.5)*2.0};}return{...n,velocity:v};}));};if(e.ctrlKey){if(noteIdx!==-1)paintNote(noteIdx,val);ccDragRef.current={active:true,lastBeat:beat,lastPainted:noteIdx!==-1?[noteIdx]:[]};return;}if(noteIdx!==-1)paintNote(noteIdx,val);};const handleCCMouseMove=e=>{if(!ccDragRef.current||!ccDragRef.current.active)return;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;const val=Math.max(0,Math.min(1,(h-y)/h));const drag=ccDragRef.current;const painted=drag.lastPainted||[];const candidateIdx=notes.findIndex(n=>beat>=n.start_beat&&beat<=n.start_beat+n.duration_beats);if(candidateIdx!==-1&&!painted.includes(candidateIdx)){setNotes(prev=>prev.map((n,i)=>{if(i!==candidateIdx)return n;if(ccMode==='pan')return{...n,pan:(val-0.5)*2.0};return{...n,velocity:val};}));drag.lastPainted=[...painted,candidateIdx];}else if(candidateIdx===-1){let nearest=-1;let minDist=Infinity;notes.forEach((n,idx)=>{const center=n.start_beat+n.duration_beats/2;const d=Math.abs(center-beat);if(dprev.map((n,i)=>{if(i!==nearest)return n;if(ccMode==='pan')return{...n,pan:(val-0.5)*2.0};return{...n,velocity:val};}));drag.lastPainted=[...painted,nearest];}}};const renderKeybed=()=>{const keys=[];for(let pitch=127;pitch>=PITCH_START;pitch--){const isBlack=[1,3,6,8,10].includes(pitch%12);const notesArray=['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];const octave=Math.floor(pitch/12)-1;const label=`${notesArray[pitch%12]}${octave}`;const showLabel=pitch%12===0;keys.push(/*#__PURE__*/React.createElement("div",{key:pitch,style:{height:`${NoteHeight}px`},className:`w-[60px] shrink-0 border-b border-zinc-800 text-[9px] font-bold flex items-center justify-end pr-2 transition cursor-pointer ${isBlack?'bg-zinc-950 text-slate-500 border-zinc-900 hover:bg-zinc-800':'bg-white text-zinc-800 border-r border-zinc-400 hover:bg-amber-100'}`,onMouseDown:e=>{e.stopPropagation();try{if(window.SonicSF){window.SonicSF.playNote(pitch,100,500,undefined,st.instrumentProgram,null);}}catch(err){console.error('playNote error:',err);}}},showLabel&&label));}return keys;};const handleScroll=e=>{if(keybedRef.current){keybedRef.current.scrollTop=e.currentTarget.scrollTop;}if(rulerScrollRef.current){rulerScrollRef.current.scrollLeft=e.currentTarget.scrollLeft;}const el=e.currentTarget;const THRESHOLD=200;if(el.scrollLeft+el.clientWidth>=el.scrollWidth-THRESHOLD){const newBeats=rollBeatsRef.current+16;setRollBeats(newBeats);}};const handleKeybedScroll=e=>{if(gridScrollRef.current){gridScrollRef.current.scrollTop=e.currentTarget.scrollTop;}};const SCALES={"None":null,"Major":[0,2,4,5,7,9,11],"Minor":[0,2,3,5,7,8,10],"Pentatonic":{"Chinese":[0,2,4,7,9],"Vietnam":[0,2,6,7,10],"India":[0,2,5,7,9],"Japan":[0,2,5,7,9],"Africa":[0,3,5,7,10]},"Blues":[0,3,5,6,7,10],"Dorian":[0,2,3,5,7,9,10],"Phrygian":[0,1,3,5,7,8,10],"Lydian":[0,2,4,6,7,9,11],"Mixolydian":[0,2,4,5,7,9,10],"Locrian":[0,1,3,5,6,8,10]};const[selectedScale,setSelectedScale]=React.useState(null);const[scaleMenuPos,setScaleMenuPos]=React.useState(null);const[aiPrompt,setAiPrompt]=React.useState('');const[aiLoading,setAiLoading]=React.useState(false);const snapPitchToScale=(pitch,scale)=>{if(!scale)return pitch;const octave=Math.floor(pitch/12);const noteInOctave=pitch%12;if(scale.includes(noteInOctave))return pitch;let best=noteInOctave;let minDist=12;scale.forEach(s=>{const dist=Math.abs(s-noteInOctave);if(dist{const prompt=aiPrompt.trim();if(!prompt||!window.AIGateway)return;setAiLoading(true);try{const result=await window.AIGateway.executeAIPrompt({prompt:'Generate MIDI notes for a piano roll. Return ONLY a JSON array: [{pitch(0-127), start_beat, duration_beats, velocity(0.0-1.0)}]. '+prompt,provider:'openai',model:'gpt-4o',systemInstruction:'You are a MIDI composer. Output ONLY valid JSON array of notes. No markdown, no explanation. Use 4/4 time. pitch=C4=60, D4=62, E4=64, F4=65, G4=67, A4=69, B4=71, C5=72.'});let notesData=null;if(result.textResponse){try{const cleaned=result.textResponse.replace(/```json?\s*/g,'').replace(/```/g,'').trim();notesData=JSON.parse(cleaned);}catch(e1){}}if(!notesData&&result.functionCalls){for(const fc of result.functionCalls){if(fc.arguments&&fc.arguments.notes){notesData=fc.arguments.notes;break;}}}if(Array.isArray(notesData)&¬esData.length>0){const newNotes=notesData.map((n,i)=>({id:'note_ai_'+Date.now()+'_'+i,pitch:Math.max(0,Math.min(127,n.pitch||60)),start_beat:Math.max(0,parseFloat(n.start_beat)||0),duration_beats:Math.max(0.125,parseFloat(n.duration_beats)||0.25),velocity:Math.max(0.1,Math.min(1.0,n.velocity??0.8)),pan:0.0}));pushToUndo(notes);setNotes(prev=>[...prev,...newNotes]);setSelectedNoteIds(newNotes.map(n=>n.id));if(window.SonicSF&&newNotes.length>0){const ctx=getAudioContext();newNotes.forEach(n=>window.SonicSF.playNote(n.pitch,n.velocity*127,300,ctx.currentTime+n.start_beat*0.01,st.instrumentProgram,null));}}}catch(err){console.error('AI Piano Roll error:',err);}setAiLoading(false);};const renderScaleContextMenu=()=>{const closeMenu=()=>setScaleMenuPos(null);const items=[];const isSameScale=(a,b)=>{if(!a||!b)return a===b;if(a.length!==b.length)return false;return a.every((v,i)=>v===b[i]);};const pushItem=(label,onClick,indent)=>{const isActive=onClick._scale&&isSameScale(onClick._scale,selectedScale);items.push(React.createElement("div",{key:label,onClick:()=>{onClick();closeMenu();},className:"px-3 py-1.5 text-xs cursor-pointer hover:bg-amber-600 hover:text-white whitespace-nowrap "+(indent?"pl-6 ":"")+(isActive?"bg-amber-800/40 text-amber-300":"text-zinc-300")},label));};Object.keys(SCALES).forEach(key=>{const val=SCALES[key];if(val===null){pushItem("None",()=>setSelectedScale(null));return;}if(Array.isArray(val)){pushItem(key,()=>setSelectedScale(val));}else{const parentKey=key;const isOpen=scaleMenuPos&&scaleMenuPos.parentKey===parentKey;pushItem(key+" ▸",()=>{setScaleMenuPos({x:scaleMenuPos.x+120,y:scaleMenuPos.y,parentKey});},false);if(isOpen){Object.keys(val).forEach(subKey=>{pushItem(subKey,()=>setSelectedScale(val[subKey]),true);});}}});return React.createElement("div",{style:{position:"fixed",left:scaleMenuPos.x,top:scaleMenuPos.y,zIndex:9999},className:"bg-[#2a2a2a] border border-zinc-600 rounded shadow-xl py-1 min-w-[140px]"},...items);};const renderBarLabels=()=>{const labels=[];const extraBars=Math.max(0,Math.ceil((gridViewWidth-drawWidth)/(4*pixelsPerBeat))+2);const barsCount=Math.ceil(totalBeats/4)+extraBars;for(let bar=0;bar{e.stopPropagation();const barTime=bar*4*beatSec;setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:barTime}:s));}},`Bar ${bar}`));}return labels;};const beatSec=60.0/(parseInt(bpm)||120);const playHeadX=(st.currentTime||0)/beatSec*pixelsPerBeat;return React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 bg-[#1e1e1e] flex-col"},React.createElement("div",{className:"h-10 bg-[#282828] border-b border-zinc-900 flex items-center justify-between px-4 shrink-0 text-slate-200"},/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-4"},/*#__PURE__*/React.createElement("span",{className:"text-xs font-bold text-yellow-500 uppercase flex items-center gap-1.5"},/*#__PURE__*/React.createElement("i",{"data-lucide":"music",className:"w-3.5 h-3.5"}),st.label),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['select','pen','eraser'].map(tool=>/*#__PURE__*/React.createElement("button",{key:tool,onClick:()=>setActiveRollTool(tool),className:`px-2.5 py-1 rounded capitalize ${activeRollTool===tool?'bg-yellow-600 text-white font-bold':'text-zinc-400 hover:text-zinc-200'}`},tool))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 text-xs"},/*#__PURE__*/React.createElement("span",{className:"text-zinc-500 font-semibold"},"Snap:"),/*#__PURE__*/React.createElement("select",{value:snapVal,onChange:e=>setSnapVal(e.target.value),className:"bg-zinc-800 border border-zinc-700 text-zinc-300 rounded px-1.5 py-0.5 outline-none focus:border-yellow-500"},['free','1','1/2','1/4','1/8','1/16','1/32'].map(v=>/*#__PURE__*/React.createElement("option",{key:v,value:v},v)))),/*#__PURE__*/React.createElement("div",{className:"flex bg-zinc-800 p-0.5 rounded border border-zinc-700 text-xs"},['velocity','pan'].map(mode=>/*#__PURE__*/React.createElement("button",{key:mode,onClick:()=>setCcMode(mode),className:`px-2.5 py-1 rounded capitalize ${ccMode===mode?'bg-purple-900/60 text-purple-300 font-bold border border-purple-700':'text-zinc-400 hover:text-zinc-200'}`},mode)))),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1 flex-1 max-w-[300px] ml-2"},/*#__PURE__*/React.createElement("input",{type:"text",value:aiPrompt,onChange:e=>setAiPrompt(e.target.value),onKeyDown:e=>{if(e.key==='Enter')handleAIPrompt();},placeholder:"AI: tạo 8 bars MIDI...",className:"flex-1 bg-zinc-900 border border-zinc-700 text-zinc-200 text-[10px] rounded px-2 py-1 outline-none focus:border-amber-500 min-w-0"}),/*#__PURE__*/React.createElement("button",{onClick:handleAIPrompt,disabled:aiLoading,className:"px-2 py-1 text-[10px] bg-purple-700 hover:bg-purple-600 disabled:bg-zinc-700 text-white rounded flex items-center gap-1 transition"},aiLoading?"...":"AI")),/*#__PURE__*/React.createElement("div",{className:"flex items-center gap-1"},/*#__PURE__*/React.createElement("button",{onClick:()=>onSaveNotes(st.id,st.trackId,st.target_id,notes),className:"px-2.5 py-1 bg-emerald-600 hover:bg-emerald-500 text-white rounded text-xs flex items-center gap-1 transition font-semibold"},/*#__PURE__*/React.createElement("i",{"data-lucide":"save",className:"w-3 h-3"}),"Lưu"),/*#__PURE__*/React.createElement("button",{onClick:onClose,className:"px-2.5 py-1 bg-zinc-800 hover:bg-zinc-700 text-zinc-300 border border-zinc-700 rounded text-xs flex items-center gap-1 transition"},/*#__PURE__*/React.createElement("i",{"data-lucide":"x",className:"w-3 h-3"}),"Đóng"))),/*#__PURE__*/React.createElement("div",{className:"h-6 bg-[#1a1a1f] border-b border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 shrink-0"}),/*#__PURE__*/React.createElement("div",{ref:rulerScrollRef,className:"flex-1 overflow-hidden",onMouseDown:e=>{const rect=e.currentTarget.getBoundingClientRect();const x=e.clientX-rect.left+e.currentTarget.scrollLeft;const clickBeat=x/pixelsPerBeat;const clickTime=clickBeat*beatSec;if(clickTime>=0){setSubTabs(prev=>prev.map(s=>s.id===st.id?{...s,currentTime:clickTime}:s));}}},/*#__PURE__*/React.createElement("div",{style:{width:`${cssWidth}px`,height:'100%'},className:"relative h-full font-mono text-[9px] text-zinc-500 font-bold"},renderBarLabels()))),/*#__PURE__*/React.createElement("div",{className:"flex-1 flex overflow-hidden min-h-0 relative"},/*#__PURE__*/React.createElement("div",{ref:keybedRef,onScroll:handleKeybedScroll,className:"w-[60px] overflow-y-auto flex flex-col border-r border-zinc-900 shrink-0",style:{scrollbarWidth:'none',msOverflowStyle:'none'}},renderKeybed()),/*#__PURE__*/React.createElement("div",{ref:gridScrollRef,onScroll:handleScroll,className:"flex-1 overflow-auto bg-[#141414] min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${cssWidth}px`,height:`${(128-PITCH_START)*NoteHeight}px`},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:canvasRef,onMouseDown:handleGridMouseDown,onMouseMove:handleGridMouseMove,onMouseUp:handleGridMouseUp,onMouseLeave:handleGridMouseUp,onContextMenu:handleContextMenu,className:"absolute inset-0 cursor-crosshair"})))),/*#__PURE__*/React.createElement("div",{className:"h-20 bg-[#161616] border-t border-zinc-900 flex shrink-0"},/*#__PURE__*/React.createElement("div",{className:"w-[60px] bg-[#222222] border-r border-zinc-900 flex items-center justify-center text-[10px] text-zinc-500 font-mono shrink-0 font-bold"},ccMode.toUpperCase()),/*#__PURE__*/React.createElement("div",{className:"flex-1 overflow-x-hidden min-w-0"},/*#__PURE__*/React.createElement("div",{style:{width:`${cssWidth}px`,height:'100%'},className:"relative"},/*#__PURE__*/React.createElement("canvas",{ref:ccCanvasRef,onMouseDown:handleCCMouseDown,onMouseMove:handleCCMouseMove,onMouseUp:()=>{ccDragRef.current=null;},onMouseLeave:()=>{ccDragRef.current=null;},className:"absolute inset-0 cursor-ns-resize"})))),scaleMenuPos&&renderScaleContextMenu());};const serializeTracksList=(tracksList,secondsPerBar)=>{return(tracksList||[]).map(t=>{let trackType="AUDIO";if(t.sections&&t.sections.length>0)trackType="SECTION";else if(t.midiItems&&t.midiItems.length>0)trackType="MIDI";const items=[];if(trackType==="AUDIO"&&t.clips){t.clips.forEach(c=>{const durationSec=c.buffer?c.buffer.duration:4.0;items.push({id:c.id,name:c.name||"Audio Clip",type:"AUDIO_ITEM",start_bar:c.startTime/secondsPerBar,duration_bars:durationSec/(c.speed||1.0)/secondsPerBar,clip_start_offset_bars:0.0,source_data:{audio_file_url:t.serverFileId?`/static/audio/uploads/${t.serverFileId}`:"",sample_rate:c.buffer?c.buffer.sampleRate:44100,channels:c.buffer?c.buffer.numberOfChannels:2,gain:1.0}});});}else if(trackType==="MIDI"&&t.midiItems){t.midiItems.forEach(m=>{items.push({id:m.id,name:m.name||"MIDI Item",type:"MIDI_ITEM",start_bar:m.startTime/secondsPerBar,duration_bars:m.duration?m.duration/secondsPerBar:4.0,clip_start_offset_bars:0.0,source_data:{total_buffer_bars:m.duration?m.duration/secondsPerBar:8.0,notes:(m.notes||[]).map(n=>({id:n.id||'note_'+Math.random().toString(36).substr(2,9),pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))}});});}else if(trackType==="SECTION"&&t.sections){t.sections.forEach(s=>{items.push({id:s.id,name:s.name||"Section Item",type:"SECTION_ITEM",start_bar:s.start/secondsPerBar,duration_bars:s.duration/secondsPerBar,clip_start_offset_bars:0.0,source_data:{referenced_section_id:s.sectionId||s.id}});});}return{id:t.id,name:t.name,type:trackType,volume_db:t.volumeDb||0.0,pan:t.pan||0.0,mute:t.muted||false,solo:t.solo||false,instrument_id:t.instrumentId||null,instrument_program:t.instrumentProgram!==undefined?t.instrumentProgram:null,instrument_name:t.instrumentName||null,items:items};});};const deserializeTracksList=(schemaTracks,secondsPerBar,sectionStore)=>{return(schemaTracks||[]).map(t=>{const clips=[];const sections=[];const midiItems=[];(t.items||[]).forEach(item=>{if(item.type==="AUDIO_ITEM"){const src=item.source_data||{};clips.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,speed:1.0});}else if(item.type==="MIDI_ITEM"){const src=item.source_data||{};midiItems.push({id:item.id,name:item.name,startTime:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,notes:(src.notes||[]).map(n=>({id:n.id,pitch:n.pitch||60,start_beat:n.start_beat||0.0,duration_beats:n.duration_beats||1.0,velocity:n.velocity||0.8,pan:n.pan||0.0}))});}else if(item.type==="SECTION_ITEM"){const src=item.source_data||{};const secId=src.referenced_section_id;const secContainer=sectionStore?sectionStore[secId]:null;sections.push({id:item.id,name:item.name,start:item.start_bar*secondsPerBar,duration:item.duration_bars*secondsPerBar,sectionId:secId,tracks:secContainer?deserializeTracksList(secContainer.tracks,secondsPerBar,sectionStore):null});}});return{id:t.id,name:t.name,volumeDb:t.volume_db||0.0,pan:t.pan||0.0,muted:t.mute||false,solo:t.solo||false,color:t.id==='1'?'#0f766e':'#1d4ed8',markers:[],serverFileId:t.items&&t.items.find(i=>i.type==="AUDIO_ITEM")?.source_data?.audio_file_url?.split("/").pop()||null,clips:clips,sections:sections,midiItems:midiItems,instrumentId:t.instrument_id||null,instrumentProgram:t.instrument_program!==null?t.instrument_program:undefined,instrumentName:t.instrument_name||null};});};const serializeProjectToSchema=(projectId,name,bpmVal,tracksList,subTabsList,sessionTabsList)=>{const secondsPerBar=60.0/parseFloat(bpmVal||120)*4;const mainTracks=serializeTracksList(tracksList,secondsPerBar);const sectionStore={};// Helper: compute length_bars from tracks content const computeLengthBars=(tracksArr,spb)=>{let maxSec=0;(tracksArr||[]).forEach(tr=>{(tr.clips||[]).forEach(c=>{const end=(c.startTime||0)+(c.buffer?c.buffer.duration/(c.speed||1.0):4);if(end>maxSec)maxSec=end;});(tr.midiItems||[]).forEach(m=>{const end=(m.startTime||0)+(m.duration||4);if(end>maxSec)maxSec=end;});});return Math.ceil((maxSec||4)/spb);};// 1. Populate from sessionTabsList (open tabs) (sessionTabsList||[]).forEach(st=>{const serializedTracks=serializeTracksList(st.tracks,secondsPerBar);sectionStore[st.sectionId]={id:st.sectionId,name:st.name,is_root:false,length_bars:computeLengthBars(st.tracks,secondsPerBar),auto_compute_length:true,tracks:serializedTracks,color:st.color||null};});// 2. Also populate from tracksList (closed tabs saved inside Section items) const scanForSections=tracks=>{(tracks||[]).forEach(t=>{if(t.sections){t.sections.forEach(s=>{const secId=s.sectionId||s.id;if(s.tracks&&!sectionStore[secId]){sectionStore[secId]={id:secId,name:s.name,is_root:false,length_bars:computeLengthBars(s.tracks,secondsPerBar),auto_compute_length:true,tracks:serializeTracksList(s.tracks,secondsPerBar),color:s.color||null};}if(s.tracks){scanForSections(s.tracks);}});}});};scanForSections(tracksList);const subTabs=(subTabsList||[]).map(st=>{return{id:st.id,label:st.label,type:st.type,track_id:st.trackId,target_id:st.target_id,parent_tab_id:st.parent_tab_id,notes:st.notes||[],duration:st.duration||4,instrument_program:st.instrumentProgram,instrument_name:st.instrumentName,current_time:st.currentTime||0,color:st.color||null};});return{project_id:projectId||'proj_'+Date.now(),metadata:{title:name||"Dự án mới",bpm:parseFloat(bpmVal||120),time_signature_numerator:4,time_signature_denominator:4,sample_rate:44100},main_session:{id:"main",name:"MAIN SESSION",is_root:true,length_bars:(()=>{let maxBar=16.0;(mainTracks||[]).forEach(t=>{(t.items||[]).forEach(item=>{const end=(item.start_bar||0)+(item.duration_bars||4);if(end>maxBar)maxBar=end;});});return maxBar;})(),auto_compute_length:true,tracks:mainTracks},sub_tabs:subTabs,section_store:sectionStore};};const deserializeProjectFromSchema=schemaObj=>{const bpmVal=schemaObj.metadata?schemaObj.metadata.bpm:120;const secondsPerBar=60.0/bpmVal*4;const sectionStore=schemaObj.section_store||{};const restoredTracks=deserializeTracksList(schemaObj.main_session.tracks,secondsPerBar,sectionStore);const restoredSessionTabs=[];Object.keys(sectionStore).forEach(secId=>{const secContainer=sectionStore[secId];const secTracks=deserializeTracksList(secContainer.tracks,secondsPerBar,sectionStore);restoredSessionTabs.push({id:'session_'+secId,name:secContainer.name,sectionId:secId,tracks:secTracks,length_bars:secContainer.length_bars||16.0,auto_compute_length:secContainer.auto_compute_length!==undefined?secContainer.auto_compute_length:true,color:secContainer.color||null});});const restoredSubTabs=(schemaObj.sub_tabs||[]).map(st=>{return{id:st.id,label:st.label,type:st.type,trackId:st.track_id,target_id:st.target_id,parent_tab_id:st.parent_tab_id,notes:st.notes||[],duration:st.duration||4,instrumentProgram:st.instrument_program,instrumentName:st.instrument_name,currentTime:st.current_time||0,color:st.color||null};});return{bpm:bpmVal,tracks:restoredTracks,sessionTabs:restoredSessionTabs,subTabs:restoredSubTabs};};const App=()=>{// ── State Definitions ── @@ -239,7 +244,7 @@ const ctx=getAudioContext();const clipBuffer=ctx.createBuffer(1,len,sr);clipBuff const newLen=data.length-len;const newBuffer=ctx.createBuffer(1,newLen,sr);const newData=newBuffer.getChannelData(0);let idx=0;for(let i=0;ip.map(tr=>tr.id===selectedTrackId?{...tr,buffer:newBuffer}:tr));const afterSnap=captureTrackSnapshot(selectedTrackId);pushAction('CUT',selectedTrackId,beforeSnap,afterSnap);showToast('Cut selection to clipboard.','info');return;}}// No selection: cut entire track (copy + delete) handleCopyTrack();handleDeleteTrack();};const handleDeleteTrack=()=>{const tid=selectedTrackId;const sessionTab=sessionTabs.find(s=>s.id===activeTab);if(sessionTab){updateActiveTracks(prev=>prev.filter(t=>t.id!==tid));setSelectedTrackId(activeTracks.filter(t=>t.id!==tid)[0]?.id||'1');}else{const curTracks=tracks;const track=curTracks.find(t=>t.id===tid);if(track&&track.sections&&track.sections.length>0){showToast('Không thể xoá track chứa Section item.','warning');return;}setTracks(p=>p.filter(t=>t.id!==tid));setSelectedTrackId(curTracks.filter(t=>t.id!==tid)[0]?.id||'1');}showToast('Deleted track.','info');};// ── Server Health Check ── const[viewportWidth,setViewportWidth]=useState(1200);useEffect(()=>{if(!timelineWrapperNode)return;const observer=new ResizeObserver(entries=>{for(let entry of entries){setViewportWidth(entry.contentRect.width);}});observer.observe(timelineWrapperNode);return()=>observer.disconnect();},[timelineWrapperNode]);useEffect(()=>{fetch(API_BASE_URL).then(r=>{if(r.ok)setServerStatus('connected');else setServerStatus('error');}).catch(()=>setServerStatus('offline'));},[]);// ── Computed Values ── -const maxDuration=useMemo(()=>{let max=10;tracks.forEach(t=>{const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default',buffer:t.buffer,startTime:t.startTime||0,name:t.name,speed:t.speed||1.0}]:[];clips.forEach(c=>{if(c.buffer){const cStart=c.startTime||0;const cDur=c.buffer.duration/(c.speed||1.0);max=Math.max(max,cStart+cDur);}});(t.midiItems||[]).forEach(m=>{max=Math.max(max,(m.startTime||0)+(m.duration||4));});(t.sections||[]).forEach(s=>{max=Math.max(max,(s.start||0)+(s.duration||4));});});if(recordingState==='RECORDING'||recordingState==='COUNT_IN'){max=Math.max(max,currentTime+60);}return max;},[tracks,recordingState,currentTime]);const maxDurationRef=useRef(maxDuration);maxDurationRef.current=maxDuration;const minZoom=useMemo(()=>{return viewportWidth/maxDuration;},[viewportWidth,maxDuration]);const timelineWidth=useMemo(()=>{return Math.max(zoom*maxDuration,viewportWidth);},[zoom,maxDuration,viewportWidth]);useEffect(()=>{if(zoomcurrentTime*zoom,[currentTime,zoom]);const selLeft=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.min(localSelectionStart,localSelectionEnd);}if(selectionStart===null||selectionEnd===null)return null;return Math.min(selectionStart,selectionEnd);},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const selRight=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(localSelectionStart,localSelectionEnd);}if(selectionStart===null||selectionEnd===null)return null;return Math.max(selectionStart,selectionEnd);},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const dspSelectionStats=useMemo(()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track)return null;const numChannels=track.buffer?track.buffer.numberOfChannels||1:0;if(selLeft===null||selRight===null||selRight<=selLeft||!track.buffer){return{trackName:track.name,channels:numChannels,timeRange:'Chưa chọn vùng',peakVolume:'N/A'};}const buffer=track.buffer;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(selLeft*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(selRight*sampleRate)));let maxVal=0;for(let c=0;cmaxVal)maxVal=val;}}let peakDb='N/A';if(maxVal>0){const db=20*Math.log10(maxVal);peakDb=db.toFixed(2)+' dB';}else{peakDb='-∞ dB';}return{trackName:track.name,channels:numChannels,timeRange:`${selLeft.toFixed(2)}s - ${selRight.toFixed(2)}s (${(selRight-selLeft).toFixed(2)}s)`,peakVolume:peakDb};},[tracks,selectedTrackId,selLeft,selRight]);// ── Toast helper ── +const maxDuration=useMemo(()=>{const secPerBar=60.0/(parseInt(bpm)||120)*4;let max=10;tracks.forEach(t=>{const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default',buffer:t.buffer,startTime:t.startTime||0,name:t.name,speed:t.speed||1.0}]:[];clips.forEach(c=>{if(c.buffer){const cStart=c.startTime||0;const cDur=c.buffer.duration/(c.speed||1.0);max=Math.max(max,cStart+cDur);}});(t.midiItems||[]).forEach(m=>{max=Math.max(max,(m.startTime||0)+(m.duration||4));});(t.sections||[]).forEach(s=>{max=Math.max(max,(s.start||0)+(s.duration||4));});});if(recordingState==='RECORDING'||recordingState==='COUNT_IN'){max=Math.max(max,currentTime+60);}return max;},[tracks,recordingState,currentTime]);const maxDurationRef=useRef(maxDuration);maxDurationRef.current=maxDuration;const minZoom=useMemo(()=>{return viewportWidth/maxDuration;},[viewportWidth,maxDuration]);const timelineWidth=useMemo(()=>{return Math.max(zoom*maxDuration,viewportWidth);},[zoom,maxDuration,viewportWidth]);useEffect(()=>{if(zoomcurrentTime*zoom,[currentTime,zoom]);const selLeft=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.min(localSelectionStart,localSelectionEnd);}if(selectionStart===null||selectionEnd===null)return null;return Math.min(selectionStart,selectionEnd);},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const selRight=useMemo(()=>{if(selectionMode==='local'&&localSelectionStart!==null&&localSelectionEnd!==null){return Math.max(localSelectionStart,localSelectionEnd);}if(selectionStart===null||selectionEnd===null)return null;return Math.max(selectionStart,selectionEnd);},[selectionStart,selectionEnd,selectionMode,localSelectionStart,localSelectionEnd]);const dspSelectionStats=useMemo(()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track)return null;const numChannels=track.buffer?track.buffer.numberOfChannels||1:0;if(selLeft===null||selRight===null||selRight<=selLeft||!track.buffer){return{trackName:track.name,channels:numChannels,timeRange:'Chưa chọn vùng',peakVolume:'N/A'};}const buffer=track.buffer;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(selLeft*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(selRight*sampleRate)));let maxVal=0;for(let c=0;cmaxVal)maxVal=val;}}let peakDb='N/A';if(maxVal>0){const db=20*Math.log10(maxVal);peakDb=db.toFixed(2)+' dB';}else{peakDb='-∞ dB';}return{trackName:track.name,channels:numChannels,timeRange:`${selLeft.toFixed(2)}s - ${selRight.toFixed(2)}s (${(selRight-selLeft).toFixed(2)}s)`,peakVolume:peakDb};},[tracks,selectedTrackId,selLeft,selRight]);// ── Toast helper ── const showToast=(text,type='info',actionText=null,onActionClick=null)=>{if(toastTimeoutRef.current)clearTimeout(toastTimeoutRef.current);setToastMessage({text,type,actionText,onActionClick});toastTimeoutRef.current=setTimeout(()=>setToastMessage(null),actionText?8000:3500);};window.showToast=showToast;// ── Server-side upload ── const uploadToServer=async(file,trackId)=>{const formData=new FormData();formData.append('file',file);try{const resp=await fetch(`${API_AUDIO}/upload`,{method:'POST',body:formData});if(!resp.ok)throw new Error(`Upload failed: ${resp.status}`);const data=await resp.json();serverFileIdMap[trackId]=data.file_id;return data;}catch(err){console.warn('Server upload failed, using client-side only:',err.message);return null;}};// ── Server-side waveform loading ── const loadServerWaveform=async fileId=>{try{const resp=await fetch(`${API_AUDIO}/waveform/${fileId}?num_peaks=800`);if(!resp.ok)return null;return await resp.json();}catch{return null;}};// ── Check Celery task result ── @@ -285,14 +290,15 @@ setCurrentTime(time);}};const clearLocalSelection=()=>{setSelectionMode(null);se const anchor=rulerAnchorRef.current!==null&&rulerAnchorRef.current!==undefined?rulerAnchorRef.current:selectionStart!==null&&selectionStart!==undefined?selectionStart:currentTime;const selS=Math.min(anchor,time);const selE=Math.max(anchor,time);setSelectionStart(selS);setSelectionEnd(selE);}else{rulerAnchorRef.current=time;setSelectionStart(time);setSelectionEnd(time);}handlePlayheadSet(time);};// Global Ruler mousemove is tracked via document listener set up in useEffect useEffect(()=>{const handleMouseMove=e=>{if(!isDraggingRulerRef.current)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const rawTime=Math.max(0,Math.min(maxDuration,mouseX/zoom));const time=snapValueRef.current!=='free'?snapTime(rawTime,snapValueRef.current,bpmRef.current):rawTime;const anchor=rulerAnchorRef.current??rulerDragStartRef.current??time;setSelectionStart(Math.min(anchor,time));setSelectionEnd(Math.max(anchor,time));};const handleMouseUp=()=>{if(isDraggingRulerRef.current){isDraggingRulerRef.current=false;rulerDragStartRef.current=null;}};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,maxDuration]);// ── Track Lane Local Selection Drag ── const localDragInProgressRef=useRef(false);const localDragTrackRef=useRef(null);const localDragStartTimeRef=useRef(0);const localSelectionAnchorRef=useRef(null);const handleTrackLaneMouseDown=(trackId,time)=>{setSelectedTrackId(trackId);clearLocalSelection();localSelectionAnchorRef.current=time;setSelectionMode('local');setLocalSelectionTrackId(trackId);setLocalSelectionStart(time);setLocalSelectionEnd(time);setSelectionStart(time);setSelectionEnd(time);localDragInProgressRef.current=true;localDragTrackRef.current=trackId;localDragStartTimeRef.current=time;};// Document-level mousemove/mouseup for local selection drag -useEffect(()=>{const handleMouseMove=e=>{if(!localDragInProgressRef.current)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=Math.max(0,Math.min(maxDuration,mouseX/zoom));const anchor=localSelectionAnchorRef.current??localDragStartTimeRef.current;const selS=Math.min(anchor,time);const selE=Math.max(anchor,time);setLocalSelectionStart(selS);setLocalSelectionEnd(selE);setSelectionStart(selS);setSelectionEnd(selE);};const handleMouseUp=()=>{if(localDragInProgressRef.current){localDragInProgressRef.current=false;localDragTrackRef.current=null;localDragStartTimeRef.current=0;}};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,maxDuration]);const draggedClipRef=useRef(null);draggedClipRef.current=draggedClip;const hoveredTrackIdRef=useRef(null);hoveredTrackIdRef.current=hoveredTrackId;const captureTrackSnapshotRef=useRef(null);captureTrackSnapshotRef.current=captureTrackSnapshot;const draggedSectionItemRef=useRef(null);draggedSectionItemRef.current=draggedSectionItem;const resizedSectionItemRef=useRef(null);resizedSectionItemRef.current=resizedSectionItem;let clipSeqCounter=0;const nextClipId=()=>`clip_${Date.now()}_${++clipSeqCounter}`;const handleClipDragStart=(trackId,clipId,clickOffset,isDuplicate=false)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const existingClips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];const clip=existingClips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+track.id);if(!clip)return;const beforeSnap=captureTrackSnapshot(trackId);if(isDuplicate){const cloneId=nextClipId();const clone={...clip,id:cloneId,startTime:clip.startTime||0,name:clip.name+' (Copy)'};setTracks(prev=>prev.map(t=>{if(t.id===trackId){const newClips=[...existingClips,clone];return{...t,clips:newClips,buffer:newClips[0].buffer,startTime:newClips[0].startTime,name:newClips[0].name};}return t;}));setDraggedClip({trackId,clipId:cloneId,clickOffset,buffer:clip.buffer,name:clip.name+' (Copy)',beforeSnap,isDuplicate:false});return;}if(!track.clips||track.clips.length===0){setTracks(prev=>prev.map(t=>{if(t.id===trackId){return{...t,clips:existingClips};}return t;}));}setDraggedClip({trackId,clipId:clip.id,clickOffset,buffer:clip.buffer,name:clip.name,beforeSnap,isDuplicate:false});};const stretchedClipRef=useRef(null);stretchedClipRef.current=stretchedClip;const handleClipStretchStart=(trackId,clipId,clickTime)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];const clip=clips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+trackId);if(!clip||!clip.buffer)return;const beforeSnap=captureTrackSnapshot(trackId);if(!track.clips||track.clips.length===0){setTracks(prev=>prev.map(t=>t.id===trackId?{...t,clips}:t));}setStretchedClip({trackId,clipId:clip.id==='default'?'default_'+trackId:clip.id,originalDuration:clip.buffer.duration,startTime:clip.startTime,originalSpeed:clip.speed||1.0,beforeSnap});};const handleSelectionEdgeDragStart=(e,trackId,side)=>{const startX=e.clientX;const initialLeft=Math.min(localSelectionStart,localSelectionEnd);const initialRight=Math.max(localSelectionStart,localSelectionEnd);const handleMouseMove=moveEvent=>{const deltaX=moveEvent.clientX-startX;const deltaSec=deltaX/zoom;if(side==='left'){const newLeft=Math.max(0,Math.min(initialRight-0.05,initialLeft+deltaSec));setLocalSelectionStart(newLeft);setLocalSelectionEnd(initialRight);}else{const newRight=Math.max(initialLeft+0.05,Math.min(maxDuration,initialRight+deltaSec));setLocalSelectionStart(initialLeft);setLocalSelectionEnd(newRight);}};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleTrackResizeMouseDown=(e,trackId)=>{e.preventDefault();e.stopPropagation();const startY=e.clientY;const track=tracks.find(t=>t.id===trackId);const startHeight=track?track.height||140:140;const handleMouseMove=moveEvent=>{const deltaY=moveEvent.clientY-startY;const newHeight=Math.max(110,Math.min(300,startHeight+deltaY));setTracks(prev=>prev.map(t=>t.id===trackId?{...t,height:newHeight}:t));};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const deleteTrack=trackId=>{const sessionTab=sessionTabs.find(s=>s.id===activeTab);const trackList=sessionTab?sessionTab.tracks:tracks;const track=trackList.find(t=>t.id===trackId);if(!track)return;const hasClips=track.clips&&track.clips.length>0||!!track.buffer;const hasMidi=track.midiItems&&track.midiItems.length>0;const hasSections=track.sections&&track.sections.length>0;const isTrackEmpty=!hasClips&&!hasMidi&&!hasSections;if(!isTrackEmpty){showToast('Không thể xoá track chứa dữ liệu. Vui lòng xoá hết các item trước khi xoá track.','warning');return;}if(sessionTab){updateActiveTracks(prev=>{const filtered=prev.filter(t=>t.id!==trackId);if(filtered.length>0)setSelectedTrackId(filtered[0].id);return filtered;});}else{const beforeSnap=captureTrackSnapshot(trackId);setTracks(prev=>{const filtered=prev.filter(t=>t.id!==trackId);if(filtered.length>0)setSelectedTrackId(filtered[0].id);return filtered;});}showToast('Đã xóa track.','info');};useEffect(()=>{const handleMouseMove=e=>{const drag=draggedClipRef.current;if(!drag)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;const rawStart=Math.max(0,time-drag.clickOffset);const newStart=snapTime(rawStart,snapValueRef.current,bpmRef.current);const targetTrackId=hoveredTrackIdRef.current||drag.trackId;setTracks(prev=>prev.map(t=>{// Clear the clip from its previous track if it moved to a new track +useEffect(()=>{const handleMouseMove=e=>{if(!localDragInProgressRef.current)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=Math.max(0,Math.min(maxDuration,mouseX/zoom));const anchor=localSelectionAnchorRef.current??localDragStartTimeRef.current;const selS=Math.min(anchor,time);const selE=Math.max(anchor,time);setLocalSelectionStart(selS);setLocalSelectionEnd(selE);setSelectionStart(selS);setSelectionEnd(selE);};const handleMouseUp=()=>{if(localDragInProgressRef.current){localDragInProgressRef.current=false;localDragTrackRef.current=null;localDragStartTimeRef.current=0;}};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,maxDuration]);const draggedClipRef=useRef(null);draggedClipRef.current=draggedClip;const hoveredTrackIdRef=useRef(null);hoveredTrackIdRef.current=hoveredTrackId;const captureTrackSnapshotRef=useRef(null);captureTrackSnapshotRef.current=captureTrackSnapshot;const draggedSectionItemRef=useRef(null);draggedSectionItemRef.current=draggedSectionItem;const resizedSectionItemRef=useRef(null);resizedSectionItemRef.current=resizedSectionItem;let clipSeqCounter=0;const nextClipId=()=>`clip_${Date.now()}_${++clipSeqCounter}`;const handleClipDragStart=(trackId,clipId,clickOffset,isDuplicate=false)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const existingClips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];const clip=existingClips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+track.id);if(!clip)return;const beforeSnap=captureTrackSnapshot(trackId);if(isDuplicate){const cloneId=nextClipId();const clone={...clip,id:cloneId,startTime:clip.startTime||0,name:clip.name+' (Copy)'};setTracks(prev=>prev.map(t=>{if(t.id===trackId){const newClips=[...existingClips,clone];return{...t,clips:newClips,buffer:newClips[0].buffer,startTime:newClips[0].startTime,name:newClips[0].name};}return t;}));setDraggedClip({trackId,clipId:cloneId,clickOffset,buffer:clip.buffer,name:clip.name+' (Copy)',beforeSnap,isDuplicate:false});return;}if(!track.clips||track.clips.length===0){setTracks(prev=>prev.map(t=>{if(t.id===trackId){return{...t,clips:existingClips};}return t;}));}setDraggedClip({trackId,clipId:clip.id,clickOffset,buffer:clip.buffer,name:clip.name,beforeSnap,isDuplicate:false});};const stretchedClipRef=useRef(null);stretchedClipRef.current=stretchedClip;const handleClipStretchStart=(trackId,clipId,clickTime)=>{const track=tracks.find(t=>t.id===trackId);if(!track)return;const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name,speed:track.speed||1.0}]:[];const clip=clips.find(c=>c.id===clipId||clipId==='default'&&c.id==='default_'+trackId);if(!clip||!clip.buffer)return;const beforeSnap=captureTrackSnapshot(trackId);if(!track.clips||track.clips.length===0){setTracks(prev=>prev.map(t=>t.id===trackId?{...t,clips}:t));}setStretchedClip({trackId,clipId:clip.id==='default'?'default_'+trackId:clip.id,originalDuration:clip.buffer.duration,startTime:clip.startTime,originalSpeed:clip.speed||1.0,beforeSnap});};const handleSelectionEdgeDragStart=(e,trackId,side)=>{const startX=e.clientX;const initialLeft=Math.min(localSelectionStart,localSelectionEnd);const initialRight=Math.max(localSelectionStart,localSelectionEnd);const handleMouseMove=moveEvent=>{const deltaX=moveEvent.clientX-startX;const deltaSec=deltaX/zoom;if(side==='left'){const newLeft=Math.max(0,Math.min(initialRight-0.05,initialLeft+deltaSec));setLocalSelectionStart(newLeft);setLocalSelectionEnd(initialRight);}else{const newRight=Math.max(initialLeft+0.05,Math.min(maxDuration,initialRight+deltaSec));setLocalSelectionStart(initialLeft);setLocalSelectionEnd(newRight);}};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleTrackResizeMouseDown=(e,trackId)=>{e.preventDefault();e.stopPropagation();const startY=e.clientY;const track=tracks.find(t=>t.id===trackId);const startHeight=track?track.height||140:140;const handleMouseMove=moveEvent=>{const deltaY=moveEvent.clientY-startY;const newHeight=Math.max(110,Math.min(300,startHeight+deltaY));setTracks(prev=>prev.map(t=>t.id===trackId?{...t,height:newHeight}:t));};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const deleteTrack=trackId=>{const sessionTab=sessionTabs.find(s=>s.id===activeTab);const trackList=sessionTab?sessionTab.tracks:tracks;const track=trackList.find(t=>t.id===trackId);if(!track)return;const hasClips=track.clips&&track.clips.length>0||!!track.buffer;const hasMidi=track.midiItems&&track.midiItems.length>0;const hasSections=track.sections&&track.sections.length>0;const isTrackEmpty=!hasClips&&!hasMidi&&!hasSections;if(!isTrackEmpty){showToast('Không thể xoá track chứa dữ liệu. Vui lòng xoá hết các item trước khi xoá track.','warning');return;}if(sessionTab){updateActiveTracks(prev=>{const filtered=prev.filter(t=>t.id!==trackId);if(filtered.length>0)setSelectedTrackId(filtered[0].id);return filtered;});}else{const beforeSnap=captureTrackSnapshot(trackId);setTracks(prev=>{const filtered=prev.filter(t=>t.id!==trackId);if(filtered.length>0)setSelectedTrackId(filtered[0].id);return filtered;});}showToast('Đã xóa track.','info');};// Shared auto-scroll: when mouse near right edge, scroll container right +const autoScrollTimeline=clientX=>{const wrapper=timelineWrapperRef.current;if(!wrapper)return;const wr=wrapper.getBoundingClientRect();const margin=60;if(clientX>wr.right-margin){const speed=15;wrapper.scrollLeft+=speed;}};useEffect(()=>{const handleMouseMove=e=>{const drag=draggedClipRef.current;if(!drag)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;autoScrollTimeline(e.clientX);const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;const rawStart=Math.max(0,time-drag.clickOffset);const newStart=snapTime(rawStart,snapValueRef.current,bpmRef.current);const targetTrackId=hoveredTrackIdRef.current||drag.trackId;setTracks(prev=>prev.map(t=>{// Clear the clip from its previous track if it moved to a new track if(t.id===drag.trackId&&drag.trackId!==targetTrackId){const updatedClips=(t.clips||[]).filter(c=>c.id!==drag.clipId);return{...t,clips:updatedClips,buffer:updatedClips.length>0?updatedClips[0].buffer:null,startTime:updatedClips.length>0?updatedClips[0].startTime:0,name:updatedClips.length>0?updatedClips[0].name:`Track ${t.id}`};}// Update/set clip on target track if(t.id===targetTrackId){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 hasClip=existingClips.some(c=>c.id===drag.clipId);let updatedClips;if(hasClip){updatedClips=existingClips.map(c=>c.id===drag.clipId?{...c,startTime:newStart}:c);}else{updatedClips=[...existingClips,{id:drag.clipId,buffer:drag.buffer,startTime:newStart,name:drag.name}];}return{...t,clips:updatedClips,buffer:updatedClips[0].buffer,startTime:updatedClips[0].startTime,name:updatedClips[0].name};}return t;}));if(drag.trackId!==targetTrackId){setDraggedClip(prev=>({...prev,trackId:targetTrackId}));}};const handleMouseUp=()=>{const drag=draggedClipRef.current;if(!drag)return;const afterSnap=captureTrackSnapshotRef.current(drag.trackId);pushAction('MOVE_CLIP',drag.trackId,drag.beforeSnap,afterSnap);setDraggedClip(null);showToast('Đã di chuyển clip.','success');};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom]);// Document-level mousemove/mouseup for clip stretching useEffect(()=>{const handleMouseMove=e=>{const stretch=stretchedClipRef.current;if(!stretch)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;const newDuration=Math.max(0.1,time-stretch.startTime);const speedRatio=stretch.originalDuration/newDuration;setTracks(prev=>prev.map(t=>{if(t.id===stretch.trackId){const updatedClips=(t.clips||[]).map(c=>{if(c.id===stretch.clipId){return{...c,speed:speedRatio};}return c;});return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer,startTime:updatedClips[0]?.startTime||0,speed:updatedClips[0]?.speed||1.0};}return t;}));};const handleMouseUp=()=>{const stretch=stretchedClipRef.current;if(!stretch)return;const afterSnap=captureTrackSnapshotRef.current(stretch.trackId);pushAction('STRETCH_CLIP',stretch.trackId,stretch.beforeSnap,afterSnap);setStretchedClip(null);showToast('Đã giãn thời gian clip.','success');};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom]);// ── Section / MIDI Item Drag Start ── const handleSectionItemDragStart=(trackId,itemType,itemId,clickOffset)=>{setDraggedSectionItem({trackId,itemType,itemId,clickOffset});};// ── Section / MIDI Item Resize Start ── const handleSectionItemResizeStart=(trackId,itemType,itemId,side,clickTime)=>{const curTracks=activeTracks;const track=curTracks.find(t=>t.id===trackId);if(!track)return;const items=itemType==='section'?track.sections:track.midiItems;const item=(items||[]).find(it=>it.id===itemId);if(!item)return;const start=itemType==='section'?item.start:item.startTime;setResizedSectionItem({trackId,itemType,itemId,side,originalStart:start,originalDuration:item.duration});};// ── Document-level mousemove/mouseup for Section/MIDI item drag ── -useEffect(()=>{const handleMouseMove=e=>{const drag=draggedSectionItemRef.current;if(!drag)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;const newStart=Math.max(0,time-drag.clickOffset);const targetTrackId=hoveredTrackIdRef.current||drag.trackId;const secondsPerBar=60.0/(parseInt(bpm)||120)*4;updateActiveTracks(prev=>{let movedItem=null;for(let track of prev){const items=drag.itemType==='section'?track.sections||[]:track.midiItems||[];const found=items.find(it=>it.id===drag.itemId);if(found){movedItem=found;break;}}return prev.map(t=>{const items=drag.itemType==='section'?t.sections||[]:t.midiItems||[];const updatedItems=items.filter(it=>it.id!==drag.itemId);if(t.id===targetTrackId){if(movedItem){updatedItems.push(drag.itemType==='section'?{...movedItem,start:newStart}:{...movedItem,startTime:newStart});}else{if(drag.itemType==='section'){updatedItems.push({id:drag.itemId,name:'Section',start:newStart,duration:4*secondsPerBar,color:'#06b6d4'});}else{updatedItems.push({id:drag.itemId,name:'MIDI Item',startTime:newStart,duration:4*secondsPerBar,notes:[],color:'#a78bfa'});}}}return drag.itemType==='section'?{...t,sections:updatedItems}:{...t,midiItems:updatedItems};});});if(drag.trackId!==targetTrackId){setDraggedSectionItem(prev=>({...prev,trackId:targetTrackId}));}};const handleMouseUp=()=>{const drag=draggedSectionItemRef.current;if(!drag)return;setDraggedSectionItem(null);showToast(`Đã di chuyển ${drag.itemType==='section'?'section':'MIDI item'}.`,'success');};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,activeTab,sessionTabs]);// ── Document-level mousemove/mouseup for Section/MIDI item resize ── -useEffect(()=>{const handleMouseMove=e=>{const resize=resizedSectionItemRef.current;if(!resize)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;updateActiveTracks(prev=>prev.map(t=>{if(t.id!==resize.trackId)return t;const items=resize.itemType==='section'?[...(t.sections||[])]:[...(t.midiItems||[])];const idx=items.findIndex(it=>it.id===resize.itemId);if(idx===-1)return t;const item=items[idx];if(resize.side==='left'){const newStart=Math.min(time,resize.originalStart+resize.originalDuration-0.1);const end=resize.originalStart+resize.originalDuration;const newDuration=end-newStart;if(newDuration<0.1)return t;items[idx]=resize.itemType==='section'?{...item,start:newStart,duration:newDuration}:{...item,startTime:newStart,duration:newDuration};}else{const newDuration=Math.max(0.1,time-resize.originalStart);items[idx]={...item,duration:newDuration};}return resize.itemType==='section'?{...t,sections:items}:{...t,midiItems:items};}));};const handleMouseUp=()=>{const resize=resizedSectionItemRef.current;if(!resize)return;setResizedSectionItem(null);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,activeTab,sessionTabs]);const handleSelectRange=(start,end,reset)=>{const maxLen=maxDuration;const cleanStart=Math.max(0,Math.min(maxLen,start));const cleanEnd=Math.max(0,Math.min(maxLen,end));if(reset){setSelectionStart(cleanStart);setSelectionEnd(cleanEnd);}else{setSelectionEnd(cleanEnd);}// LOOP_EDITOR_2.md §4.2: new selection = enable looping +useEffect(()=>{const handleMouseMove=e=>{const drag=draggedSectionItemRef.current;if(!drag)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;autoScrollTimeline(e.clientX);const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;const newStart=Math.max(0,time-drag.clickOffset);const targetTrackId=hoveredTrackIdRef.current||drag.trackId;const secondsPerBar=60.0/(parseInt(bpm)||120)*4;updateActiveTracks(prev=>{let movedItem=null;for(let track of prev){const items=drag.itemType==='section'?track.sections||[]:track.midiItems||[];const found=items.find(it=>it.id===drag.itemId);if(found){movedItem=found;break;}}return prev.map(t=>{const items=drag.itemType==='section'?t.sections||[]:t.midiItems||[];const updatedItems=items.filter(it=>it.id!==drag.itemId);if(t.id===targetTrackId){if(movedItem){updatedItems.push(drag.itemType==='section'?{...movedItem,start:newStart}:{...movedItem,startTime:newStart});}else{if(drag.itemType==='section'){updatedItems.push({id:drag.itemId,name:'Section',start:newStart,duration:4*secondsPerBar,color:'#06b6d4'});}else{updatedItems.push({id:drag.itemId,name:'MIDI Item',startTime:newStart,duration:4*secondsPerBar,notes:[],color:'#a78bfa'});}}}return drag.itemType==='section'?{...t,sections:updatedItems}:{...t,midiItems:updatedItems};});});if(drag.trackId!==targetTrackId){setDraggedSectionItem(prev=>({...prev,trackId:targetTrackId}));}};const handleMouseUp=()=>{const drag=draggedSectionItemRef.current;if(!drag)return;setDraggedSectionItem(null);showToast(`Đã di chuyển ${drag.itemType==='section'?'section':'MIDI item'}.`,'success');};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,activeTab,sessionTabs]);// ── Document-level mousemove/mouseup for Section/MIDI item resize ── +useEffect(()=>{const handleMouseMove=e=>{const resize=resizedSectionItemRef.current;if(!resize)return;const wrapper=timelineWrapperRef.current;if(!wrapper)return;autoScrollTimeline(e.clientX);const rect=wrapper.getBoundingClientRect();const scrollLeft=wrapper.scrollLeft;const mouseX=e.clientX-rect.left+scrollLeft;const time=mouseX/zoom;updateActiveTracks(prev=>prev.map(t=>{if(t.id!==resize.trackId)return t;const items=resize.itemType==='section'?[...(t.sections||[])]:[...(t.midiItems||[])];const idx=items.findIndex(it=>it.id===resize.itemId);if(idx===-1)return t;const item=items[idx];if(resize.side==='left'){const newStart=Math.min(time,resize.originalStart+resize.originalDuration-0.1);const end=resize.originalStart+resize.originalDuration;const newDuration=end-newStart;if(newDuration<0.1)return t;items[idx]=resize.itemType==='section'?{...item,start:newStart,duration:newDuration}:{...item,startTime:newStart,duration:newDuration};}else{const newDuration=Math.max(0.1,time-resize.originalStart);items[idx]={...item,duration:newDuration};}return resize.itemType==='section'?{...t,sections:items}:{...t,midiItems:items};}));};const handleMouseUp=()=>{const resize=resizedSectionItemRef.current;if(!resize)return;setResizedSectionItem(null);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);return()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};},[zoom,activeTab,sessionTabs]);const handleSelectRange=(start,end,reset)=>{const maxLen=maxDuration;const cleanStart=Math.max(0,Math.min(maxLen,start));const cleanEnd=Math.max(0,Math.min(maxLen,end));if(reset){setSelectionStart(cleanStart);setSelectionEnd(cleanEnd);}else{setSelectionEnd(cleanEnd);}// LOOP_EDITOR_2.md §4.2: new selection = enable looping setSelectionCleared(false);};const handleSelectionInputChange=(field,val)=>{const numericVal=Math.max(0,parseFloat(val)||0);if(selectionMode==='local'){// Editing local selection directly if(field==='start'){setLocalSelectionStart(numericVal);}else{setLocalSelectionEnd(numericVal);}}else{if(field==='start'){setSelectionStart(numericVal);}else{setSelectionEnd(numericVal);}}};const selectionStats=useMemo(()=>{if(selLeft===null||selRight===null){return{start:0,end:0,length:0};}const s=Math.min(selLeft,selRight);const e=Math.max(selLeft,selRight);return{start:parseFloat(s.toFixed(3)),end:parseFloat(e.toFixed(3)),length:parseFloat((e-s).toFixed(3))};},[selLeft,selRight]);// ── Handle Drag (selection resize) ── const handleHandleDragStart=(e,side)=>{e.preventDefault();e.stopPropagation();const startX=e.clientX;const useLocal=selectionMode==='local';const currentStart=useLocal?localSelectionStart:selectionStart;const currentEnd=useLocal?localSelectionEnd:selectionEnd;const initialLeft=Math.min(currentStart,currentEnd);const initialRight=Math.max(currentStart,currentEnd);const setStart=useLocal?setLocalSelectionStart:setSelectionStart;const setEnd=useLocal?setLocalSelectionEnd:setSelectionEnd;const handleMouseMove=moveEvent=>{const deltaX=moveEvent.clientX-startX;const deltaSec=deltaX/zoom;if(side==='left'){const newLeft=Math.max(0,Math.min(initialRight-0.05,initialLeft+deltaSec));setStart(newLeft);setEnd(initialRight);}else{const newRight=Math.max(initialLeft+0.05,Math.min(maxDuration,initialRight+deltaSec));setStart(initialLeft);setEnd(newRight);}};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};const handleSelectionBodyDragStart=e=>{e.preventDefault();e.stopPropagation();const startX=e.clientX;const useLocal=selectionMode==='local';const currentStart=useLocal?localSelectionStart:selectionStart;const currentEnd=useLocal?localSelectionEnd:selectionEnd;const initialLeft=Math.min(currentStart,currentEnd);const initialRight=Math.max(currentStart,currentEnd);const widthSec=initialRight-initialLeft;const setStart=useLocal?setLocalSelectionStart:setSelectionStart;const setEnd=useLocal?setLocalSelectionEnd:setSelectionEnd;const handleMouseMove=moveEvent=>{const deltaX=moveEvent.clientX-startX;const deltaSec=deltaX/zoom;let newLeft=initialLeft+deltaSec;let newRight=initialRight+deltaSec;if(newLeft<0){newLeft=0;newRight=widthSec;}if(newRight>maxDuration){newRight=maxDuration;newLeft=maxDuration-widthSec;}setStart(newLeft);setEnd(newRight);};const handleMouseUp=()=>{document.removeEventListener('mousemove',handleMouseMove);document.removeEventListener('mouseup',handleMouseUp);};document.addEventListener('mousemove',handleMouseMove);document.addEventListener('mouseup',handleMouseUp);};// ── Track Controls ── @@ -366,5 +372,5 @@ const handleSplitTrackAtTime=(trackId,clipId,time)=>{const track=tracks.find(t=> const handleGlueTracks=()=>{const track=tracks.find(t=>t.id===selectedTrackId);if(!track){showToast('Vui lòng chọn một track để thực hiện gộp (glue).','warning');return;}const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default',buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length<2){showToast('Cần ít nhất 2 clip trên track này để gộp (glue).','warning');return;}const beforeSnap=captureTrackSnapshot(track.id);const ctx=getAudioContext();const sr=clips[0].buffer.sampleRate;let minStart=Infinity;let maxEnd=-Infinity;clips.forEach(c=>{const start=c.startTime||0;const end=start+c.buffer.duration;minStart=Math.min(minStart,start);maxEnd=Math.max(maxEnd,end);});const newDur=maxEnd-minStart;const newBuffer=ctx.createBuffer(1,Math.ceil(newDur*sr),sr);const newData=newBuffer.getChannelData(0);clips.forEach(c=>{const data=c.buffer.getChannelData(0);const offset=Math.floor(((c.startTime||0)-minStart)*sr);for(let i=0;imaxPeak)maxPeak=abs;}if(maxPeak>1.0){for(let i=0;iprev.map(t=>{if(t.id===track.id){return{...t,clips:[mergedClip],buffer:newBuffer,startTime:minStart,name:mergedClip.name};}return t;}));setTimeout(()=>{const afterSnap=captureTrackSnapshot(track.id);pushAction('GLUE',track.id,beforeSnap,afterSnap);},50);showToast(`Đã gộp ${clips.length} clips thành công.`,'success');};// ── DAW Command Registration for AI (28_AI_PANEL.md §1 & §2) ── useEffect(()=>{if(typeof window.DAWCommandDispatcher==='undefined')return;const api={createTrack:args=>{const name=args.name||`AI_Track_${Date.now()}`;const type=args.type||'audio';const newId=addNewTrack();if(name&&name!==`AI_Track_${Date.now()}`){updateTrackName(newId,name);}return{success:true,trackId:newId,name};},deleteTrack:args=>{const tid=args.track_id||selectedTrackId;if(!tid)return{success:false,error:'No track_id provided'};deleteTrack(tid);return{success:true,trackId:tid};},addClip:args=>{const trackId=args.track_id||selectedTrackId;const barDur=60/parseInt(bpm||120)*4;let startTime;if(args.start_time!==undefined&&args.start_time!==null)startTime=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)startTime=args.start_bar*barDur;else startTime=currentTime;const track=tracks.find(t=>t.id===trackId);if(!track)return{success:false,error:'Track not found'};const ctx=getAudioContext();const sr=44100;let duration;if(args.duration_seconds!==undefined&&args.duration_seconds!==null)duration=args.duration_seconds;else if(args.length_bars!==undefined&&args.length_bars!==null)duration=args.length_bars*barDur;else duration=2;const buffer=ctx.createBuffer(1,Math.floor(sr*duration),sr);const data=buffer.getChannelData(0);for(let i=0;iprev.map(t=>{if(t.id!==trackId)return t;const clips=t.clips&&t.clips.length>0?t.clips:t.buffer?[{id:'default_'+t.id,buffer:t.buffer,startTime:t.startTime||0,name:t.name}]:[];return{...t,clips:[...clips,{id:clipId,buffer,startTime,name:args.name||'AI Clip'}],buffer:clips.length>0?clips[0].buffer:buffer,startTime:clips.length>0?clips[0].startTime:startTime,name:clips.length>0?clips[0].name:args.name||t.name};}));return{success:true,clipId,trackId};},removeClip:args=>{const trackId=args.track_id||selectedTrackId;const clipId=args.clip_id;setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;const updatedClips=(t.clips||[]).filter(c=>c.id!==clipId);return{...t,clips:updatedClips,buffer:updatedClips[0]?.buffer||null,startTime:updatedClips[0]?.startTime||0,name:updatedClips[0]?.name||t.name};}));return{success:true};},setTrackVolume:args=>{const trackId=args.track_id||selectedTrackId;const vol=args.volume_db??args.volume??0;updateTrackVolumeDb(trackId,parseFloat(vol));return{success:true,trackId,volumeDb:vol};},setTrackPan:args=>{const trackId=args.track_id||selectedTrackId;const pan=args.pan??0;updateTrackPan(trackId,parseInt(pan));return{success:true,trackId,pan};},toggleMute:args=>{const trackId=args.track_id||selectedTrackId;toggleTrackMute(trackId);const track=tracks.find(t=>t.id===trackId);return{success:true,trackId,muted:track?track.muted:null};},toggleSolo:args=>{const trackId=args.track_id||selectedTrackId;toggleTrackSoloEvaluate(trackId);const track=tracks.find(t=>t.id===trackId);return{success:true,trackId,solo:track?track.solo:null};},processAudioDsp:args=>{const trackId=args.track_id||selectedTrackId;const action=args.action;const params=args.params||{};const track=tracks.find(t=>t.id===trackId);if(!track||!track.buffer)return{success:false,error:'Track has no audio buffer'};if(action==='normalize'){const channelData=track.buffer.getChannelData(0);let maxVal=0;for(let i=0;i0){const gain=1.0/maxVal;for(let i=0;i{const newLen=Math.round(data.length*r);const out=new Float32Array(newLen);for(let i=0;iprev.map(t=>t.id===trackId?{...t,buffer:newBuffer}:t));return{success:true,action:'pitch_shift',semitones};}return{success:false,error:`Unknown action: ${action}`};},renameTrack:args=>{const tid=args.track_id||selectedTrackId;const name=args.name;if(!tid)return{success:false,error:'No track_id provided'};if(!name)return{success:false,error:'No name provided'};updateTrackName(tid,name);return{success:true,trackId:tid,name};},setSelection:args=>{const barDur=60/parseInt(bpm||120)*4;let start,end;if(args.start_time!==undefined&&args.start_time!==null)start=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)start=args.start_bar*barDur;else start=currentTime;if(args.end_time!==undefined&&args.end_time!==null)end=args.end_time;else if(args.length_bars!==undefined&&args.length_bars!==null)end=start+args.length_bars*barDur;else if(args.end_bar!==undefined&&args.end_bar!==null)end=args.end_bar*barDur;else end=start+barDur;clearLocalSelection();setSelectionMode('global');setSelectionStart(start);setSelectionEnd(end);selectionRef.current={start,end};return{success:true,start:parseFloat(start.toFixed(3)),end:parseFloat(end.toFixed(3)),length:parseFloat((end-start).toFixed(3))};},cutAudio:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;const tid=args.track_id||currentSelTrackId;const track=currentTracks.find(t=>t.id===String(tid));if(!track)return{success:false,error:'Track not found'};if(!track.buffer)return{success:false,error:'Track has no audio buffer'};const barDur=60/parseInt(bpm||120)*4;const sel=selectionRef.current;let rawStart,rawEnd;if(args.start_time!==undefined&&args.start_time!==null)rawStart=args.start_time;else if(args.start_bar!==undefined&&args.start_bar!==null)rawStart=args.start_bar*barDur;else if(sel.start!==null)rawStart=sel.start;else rawStart=currentTime;if(args.end_time!==undefined&&args.end_time!==null)rawEnd=args.end_time;else if(args.end_bar!==undefined&&args.end_bar!==null)rawEnd=args.end_bar*barDur;else if(args.length_bars!==undefined&&args.length_bars!==null)rawEnd=rawStart+args.length_bars*barDur;else if(sel.end!==null&&sel.end>rawStart)rawEnd=sel.end;else return{success:false,error:'No end position provided. Provide end_time, end_bar, or length_bars.'};if(rawEnd<=rawStart)return{success:false,error:'End position must be after start position.'};const buffer=track.buffer;const ctx=getAudioContext();const snap=args.snap_silence!==false;const loopStart=snap?findZeroCrossing(buffer,rawStart):rawStart;const loopEnd=snap?findZeroCrossing(buffer,rawEnd):rawEnd;const sampleRate=buffer.sampleRate;const startSample=Math.max(0,Math.min(buffer.length-1,Math.floor(loopStart*sampleRate)));const endSample=Math.max(0,Math.min(buffer.length,Math.floor(loopEnd*sampleRate)));const sliceLength=endSample-startSample;if(sliceLength<=100)return{success:false,error:'Selection too short or invalid'};const numChannels=buffer.numberOfChannels||1;const slicedBuffer=ctx.createBuffer(numChannels,sliceLength,sampleRate);for(let c=0;ct.id===tid);const nextTracks=[...currentTracks];if(idx!==-1){nextTracks.splice(idx+1,0,newTrack);}else{nextTracks.push(newTrack);}if(window.DAWCommandDispatcher){window.DAWCommandDispatcher.currentTracks=nextTracks;window.DAWCommandDispatcher.currentSelectedTrackId=newId;window.DAWCommandDispatcher.lastCutSourceTrackId=tid;window.DAWCommandDispatcher.lastCutNewTrackId=newId;}setTracks(nextTracks);setSelectedTrackId(newId);selectionRef.current={start:0,end:slicedBuffer.duration};clearLocalSelection();setSelectionMode('global');setSelectionStart(0);setSelectionEnd(slicedBuffer.duration);setTimeout(()=>lucide.createIcons(),200);return{success:true,trackId:newId,trackName:cutName,cutStart:parseFloat(loopStart.toFixed(3)),cutEnd:parseFloat(loopEnd.toFixed(3)),duration:parseFloat(slicedBuffer.duration.toFixed(3))};},scanTrack:args=>{const tid=args.track_id||selectedTrackId;const track=tracks.find(t=>t.id===tid);if(!track)return{success:false,error:'Track not found'};if(!track.buffer)return{success:false,error:'Track has no audio buffer. Load audio first.'};const buffer=track.buffer;const data=buffer.getChannelData(0);const sr=buffer.sampleRate;const channels=buffer.numberOfChannels;const duration=buffer.duration;const totalSamples=buffer.length;const windowSize=Math.min(sr*3,data.length);let detectedBPM=0;if(windowSize>sr){let maxCorr=0;for(let lag=Math.floor(sr*0.3);lag<=Math.floor(sr*2.0);lag++){let corr=0;const step=4;for(let i=0;imaxCorr){maxCorr=corr;detectedBPM=60/(lag/sr);}}}detectedBPM=Math.round(Math.min(300,Math.max(30,detectedBPM)));if(args.set_tempo!==false&&detectedBPM>0){setBpm(String(detectedBPM));}const bitDepth=16;const bitrate=Math.round(sr*channels*bitDepth/1000);return{success:true,trackId:tid,trackName:track.name,bpm:detectedBPM,sampleRate:sr,channels,duration:parseFloat(duration.toFixed(3)),totalSamples,bitDepth,bitrateKbps:bitrate,hasAudio:true};},setBpm:args=>{const bpmVal=args.bpm||args.tempo||120;setBpm(String(bpmVal));return{success:true,bpm:bpmVal};},setPlayhead:args=>{const barDur=60/parseInt(bpm||120)*4;let time;if(args.time!==undefined&&args.time!==null)time=args.time;else if(args.bar!==undefined&&args.bar!==null)time=args.bar*barDur;else time=0;handlePlayheadSet(time);return{success:true,time:parseFloat(time.toFixed(3))};},exportAudio:async args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let tid=args.track_id;if(tid&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(tid)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+tid===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){tid=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!tid)tid=currentSelTrackId;const track=tid&¤tTracks.find(t=>t.id===String(tid)||t.id==='track_'+tid);if(!track)return{success:false,error:'No track found'};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0&&(!track.midiItems||track.midiItems.length===0))return{success:false,error:'Track has no audio clips'};const beatsPerSec=parseFloat(bpm||120)/60;const totalDuration=Math.max(clips.length>0?Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration/(c.speed||1.0):0))):0,...(track.midiItems||[]).map(m=>(m.startTime||0)+(m.duration||4)),...(track.sections||[]).map(s=>(s.start||0)+(s.duration||4)));const barDur=60/parseInt(bpm||120)*4;const sel=selectionRef.current;let rawStart,rawEnd;if(args.start_time!==undefined)rawStart=args.start_time;else if(args.start_bar!==undefined)rawStart=args.start_bar*barDur;else if(sel.start!==null)rawStart=sel.start;else rawStart=0;if(args.end_time!==undefined)rawEnd=args.end_time;else if(args.length_bars!==undefined)rawEnd=(rawStart||0)+args.length_bars*barDur;else if(args.end_bar!==undefined)rawEnd=args.end_bar*barDur;else if(sel.end!==null&&sel.end>rawStart)rawEnd=sel.end;else rawEnd=totalDuration;if(rawEnd<=rawStart)return{success:false,error:'Export range is empty or invalid.'};const ctx=getAudioContext();const sr=parseInt(args.sample_rate||'44100');const firstBuffer=clips.find(c=>c.buffer)?.buffer;const numCh=args.channels==='mono'?1:firstBuffer?firstBuffer.numberOfChannels:2;const bd=parseInt(args.bit_depth||'16');const fmt=args.format||'wav';const renderLength=rawEnd-rawStart;const offlineCtx=new OfflineAudioContext(numCh,Math.ceil(sr*renderLength),sr);clips.forEach(clip=>{if(!clip.buffer)return;const clipStart=clip.startTime||0;const clipDuration=clip.buffer.duration/(clip.speed||1.0);const clipEnd=clipStart+clipDuration;if(clipEnd<=rawStart||clipStart>=rawEnd)return;const source=offlineCtx.createBufferSource();source.buffer=clip.buffer;source.playbackRate.value=clip.speed||1.0;source.connect(offlineCtx.destination);if(rawStart{for(let i=0;i>8&0xFF);vw.setUint8(ofs+2,v24>>16&0xFF);}ofs+=bps;}}const blob=new Blob([fileBuf],{type:'audio/wav'});const localUrl=URL.createObjectURL(blob);const targetFilename=`export_${Date.now()}.${fmt}`;const triggerDownload=(downloadUrl,finalFilename)=>{if(window.DAWCommandDispatcher?.isExecutingAI){showToast(`Xuất nhạc thành công (${fmt.toUpperCase()})!`,"success","Tải về",()=>{const a=document.createElement('a');a.href=downloadUrl;a.download=finalFilename;a.click();if(downloadUrl.startsWith('blob:')){URL.revokeObjectURL(downloadUrl);}});}else{const a=document.createElement('a');a.href=downloadUrl;a.download=finalFilename;a.click();showToast("Xuất bản âm thanh hoàn tất!","success");if(downloadUrl.startsWith('blob:')){URL.revokeObjectURL(downloadUrl);}}};if((fmt==='mp3'||fmt==='ogg')&&serverStatus==='connected'){try{const file=new File([blob],`export_ai.wav`,{type:'audio/wav'});const formData=new FormData();formData.append('file',file);const uploadResp=await fetch(`${API_AUDIO}/upload`,{method:'POST',body:formData});if(!uploadResp.ok)throw new Error("Upload failed");const uploadData=await uploadResp.json();const uploadId=uploadData.file_id;const exportResp=await fetch(`${API_AUDIO}/export`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({file_id:uploadId,format:fmt,sample_rate:sr,bit_depth:bd})});if(!exportResp.ok)throw new Error("Export failed");const exportData=await exportResp.json();const result=await pollTaskResult(exportData.task_id,20);if(result.success){const downloadUrl=`${API_AUDIO}/download/${result.output_file_id}`;triggerDownload(downloadUrl,targetFilename);}else{throw new Error(result.error||'Server encoding failed');}}catch(transcodeErr){showToast(`Lỗi chuyển đổi: ${transcodeErr.message}. Tải về dạng WAV thay thế.`,"warning");triggerDownload(localUrl,`export_${Date.now()}.wav`);}}else{const finalFilename=fmt==='wav'?`export_${Date.now()}.wav`:`export_${Date.now()}.wav`;if(fmt!=='wav'){showToast("Đang ngoại tuyến. Tải về định dạng WAV thay thế.","warning");}triggerDownload(localUrl,finalFilename);}return{success:true,trackId:tid,range:parseFloat((rawEnd-rawStart).toFixed(3))+'s',format:fmt,channels:numCh===1?'mono':'stereo'};},selectItem:args=>{if(args.select_all){setSelectedTrackId(null);clearLocalSelection();setSelectionMode('global');setSelectionStart(0);const maxDur=tracks.reduce((max,t)=>{const dur=t.buffer?t.buffer.duration:0;const clips=t.clips||[];const clipMax=clips.reduce((m,c)=>Math.max(m,(c.startTime||0)+(c.buffer?c.buffer.duration:0)),0);return Math.max(max,dur,clipMax);},0);setSelectionEnd(Math.max(maxDur,currentTime+10));return{success:true,selection:'all',duration:parseFloat(Math.max(maxDur,currentTime+10).toFixed(3))};}const tid=args.track_id||selectedTrackId;const track=tracks.find(t=>t.id===tid);if(!track)return{success:false,error:`Track ${tid} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,name:track.name,buffer:track.buffer,startTime:track.startTime||0}]:[];if(args.item_name){const match=clips.find(c=>c.name&&c.name.toLowerCase().includes(args.item_name.toLowerCase()));if(!match)return{success:false,error:`No clip matching "${args.item_name}" on track ${track.name}`};setSelectedTrackId(tid);clearLocalSelection();setSelectionMode('global');const start=match.startTime||0;const end=start+(match.buffer?match.buffer.duration:2);setSelectionStart(start);setSelectionEnd(end);return{success:true,trackId:tid,trackName:track.name,clipId:match.id,clipName:match.name,start:parseFloat(start.toFixed(3)),end:parseFloat(end.toFixed(3))};}setSelectedTrackId(tid);clearLocalSelection();setSelectionMode('global');const trackEnd=track.buffer?track.buffer.duration:clips.length>0?Math.max(...clips.map(c=>(c.startTime||0)+(c.buffer?c.buffer.duration:0))):4;setSelectionStart(0);setSelectionEnd(trackEnd);return{success:true,trackId:tid,trackName:track.name,duration:parseFloat(trackEnd.toFixed(3))};},addMarker:args=>{const trackId=args.track_id||selectedTrackId;const time=args.time??currentTime;const track=tracks.find(t=>t.id===trackId);if(!track)return{success:false,error:'Track not found'};setTracks(prev=>prev.map(t=>{if(t.id!==trackId)return t;return{...t,markers:[...(t.markers||[]),{id:'ai_marker_'+Date.now(),time,label:args.label||'AI Marker'}]};}));return{success:true,trackId,time};},fadeIn:args=>{const currentTracks=window.DAWCommandDispatcher?.currentTracks||tracks;const currentSelTrackId=window.DAWCommandDispatcher?.currentSelectedTrackId||selectedTrackId;let trackIdRaw=args.track_id;if(trackIdRaw&&window.DAWCommandDispatcher?.lastCutSourceTrackId&&(String(trackIdRaw)===String(window.DAWCommandDispatcher.lastCutSourceTrackId)||'track_'+trackIdRaw===String(window.DAWCommandDispatcher.lastCutSourceTrackId))){trackIdRaw=window.DAWCommandDispatcher.lastCutNewTrackId;}if(!trackIdRaw)trackIdRaw=currentSelTrackId;const track=currentTracks.find(t=>t.id===String(trackIdRaw)||t.id==='track_'+trackIdRaw);if(!track)return{success:false,error:`Track ${trackIdRaw} not found`};const clips=track.clips&&track.clips.length>0?track.clips:track.buffer?[{id:'default_'+track.id,buffer:track.buffer,startTime:track.startTime||0,name:track.name}]:[];if(clips.length===0)return{success:false,error:'No clips on track'};let clip=null;if(args.clip_id){clip=clips.find(c=>c.id===args.clip_id);}else if(args.clip_index!==undefined){const idx=parseInt(args.clip_index);const 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Thêm hàm `handleCCMouseMove` bị thiếu và cập nhật `handleCCMouseDown` hỗ trợ Ctrl+Click paint velocity. +- **Các file ảnh hưởng:** `app/static/js/app.jsx`, `app/static/js/app.precompiled.js` +- **Ghi chú/Test (nếu có):** `cd /home/locpham/SonicForgeStudio && npm run build` — build passes. +--- + +### [2026-07-25 07:25] Task: 4 tính năng mới (Piano Roll zoom fill + Shift+scroll playhead + auto-scroll drag + SoundFont cache) +- **Tóm tắt thay đổi:** (1) Piano Roll zoom-out không còn màn hình đen — bars fill toàn bộ viewport. (2) Shift+scroll trong Piano Roll di chuyển playhead và play notes MIDI như fast-forward. (3) Khi drag section/MIDI/clip đến cạnh phải timeline, auto-scroll container. (4) Server-side cache FluidSynth instances + PluginManager singleton + list_soundfont_instruments cache. +- **Các file ảnh hưởng:** `app/static/js/app.jsx`, `app/core/vst_engine.py` +- **Ghi chú/Test (nếu có):** `npm run build` pass. `vst_engine.py` thêm `load_soundfont_cached`, `release_soundfont`, `get_plugin_manager`, `_SF_INSTRUMENTS_CACHE` — refcount-based cache. + +### [2026-07-25 07:31] Task: Fix zoom cursor + right edge black + AI Copilot for Piano Roll +- **Tóm tắt thay đổi:** (1) Tách `drawWidth` (content) và `cssWidth` (CSS) — canvas coordinate system không còn bị sai khi zoom out. (2) Thêm `min-width` fill viewport, không còn mảng đen phải. (3) Thêm AI Copilot input + handler trong Piano Roll — gõ prompt tạo MIDI notes trực tiếp. +- **Các file ảnh hưởng:** `app/static/js/app.jsx` +- **Ghi chú/Test (nếu có):** `npm run build` pass.