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@@ -12,6 +12,7 @@ interface WaveformEditorProps {
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export default function WaveformEditor({ audioUrl, startTime, duration, unlockSteps, onStartTimeChange }: WaveformEditorProps) {
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const canvasRef = useRef<HTMLCanvasElement>(null);
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const timelineRef = useRef<HTMLCanvasElement>(null);
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const [audioBuffer, setAudioBuffer] = useState<AudioBuffer | null>(null);
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const [audioDuration, setAudioDuration] = useState(0);
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const [isPlaying, setIsPlaying] = useState(false);
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@@ -58,6 +59,80 @@ export default function WaveformEditor({ audioUrl, startTime, duration, unlockSt
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};
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}, [audioUrl]);
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// Draw timeline
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useEffect(() => {
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if (!audioDuration || !timelineRef.current) return;
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const timeline = timelineRef.current;
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const ctx = timeline.getContext('2d');
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if (!ctx) return;
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const width = timeline.width;
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const height = timeline.height;
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// Calculate visible range based on zoom and offset (same as waveform)
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const visibleDuration = audioDuration / zoom;
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const visibleStart = Math.max(0, Math.min(viewOffset, audioDuration - visibleDuration));
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const visibleEnd = Math.min(audioDuration, visibleStart + visibleDuration);
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// Clear timeline
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ctx.fillStyle = '#ffffff';
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ctx.fillRect(0, 0, width, height);
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// Draw border
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ctx.strokeStyle = '#e5e7eb';
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ctx.lineWidth = 1;
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ctx.strokeRect(0, 0, width, height);
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// Calculate appropriate time interval based on visible duration
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let timeInterval = 1; // Start with 1 second
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if (visibleDuration > 60) timeInterval = 10;
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else if (visibleDuration > 30) timeInterval = 5;
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else if (visibleDuration > 10) timeInterval = 2;
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else if (visibleDuration > 5) timeInterval = 1;
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else if (visibleDuration > 1) timeInterval = 0.5;
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else timeInterval = 0.1;
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// Draw time markers
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ctx.strokeStyle = '#9ca3af';
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ctx.lineWidth = 1;
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ctx.fillStyle = '#374151';
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ctx.font = '10px sans-serif';
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ctx.textAlign = 'center';
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ctx.textBaseline = 'top';
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const startTimeMarker = Math.floor(visibleStart / timeInterval) * timeInterval;
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for (let time = startTimeMarker; time <= visibleEnd; time += timeInterval) {
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const timePx = ((time - visibleStart) / visibleDuration) * width;
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if (timePx >= 0 && timePx <= width) {
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// Draw tick mark
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ctx.beginPath();
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ctx.moveTo(timePx, 0);
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ctx.lineTo(timePx, height);
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ctx.stroke();
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// Draw time label
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const timeLabel = time.toFixed(timeInterval < 1 ? 1 : 0);
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ctx.fillText(`${timeLabel}s`, timePx, 2);
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}
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}
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// Draw current playback position if playing
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if (playbackPosition !== null) {
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const playbackPx = ((playbackPosition - visibleStart) / visibleDuration) * width;
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if (playbackPx >= 0 && playbackPx <= width) {
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ctx.strokeStyle = '#10b981';
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ctx.lineWidth = 2;
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ctx.beginPath();
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ctx.moveTo(playbackPx, 0);
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ctx.lineTo(playbackPx, height);
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ctx.stroke();
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}
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}
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}, [audioDuration, zoom, viewOffset, playbackPosition]);
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useEffect(() => {
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if (!audioBuffer || !canvasRef.current) return;
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@@ -240,18 +315,17 @@ export default function WaveformEditor({ audioUrl, startTime, duration, unlockSt
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if (savePosition && playbackPosition !== null) {
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// Save current position for resume
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setPausedPosition(playbackPosition);
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// Keep playbackPosition visible (don't set to null) so cursor stays visible
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} else {
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// Clear paused position if stopping completely
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setPausedPosition(null);
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setPausedType(null);
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setPlaybackPosition(null);
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}
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sourceRef.current?.stop();
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setIsPlaying(false);
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setPlayingSegment(null);
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setIsPlayingFullTitle(false);
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if (!savePosition) {
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setPlaybackPosition(null);
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}
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if (animationFrameRef.current) {
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cancelAnimationFrame(animationFrameRef.current);
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animationFrameRef.current = null;
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@@ -492,21 +566,38 @@ export default function WaveformEditor({ audioUrl, startTime, duration, unlockSt
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)}
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</div>
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<canvas
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ref={canvasRef}
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width={800}
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height={150}
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onClick={handleCanvasClick}
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onMouseMove={handleCanvasMouseMove}
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onMouseLeave={handleCanvasMouseLeave}
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style={{
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width: '100%',
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height: 'auto',
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cursor: 'pointer',
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border: '1px solid #e5e7eb',
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borderRadius: '0.5rem'
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}}
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/>
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<div style={{ position: 'relative' }}>
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<canvas
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ref={canvasRef}
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width={800}
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height={150}
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onClick={handleCanvasClick}
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onMouseMove={handleCanvasMouseMove}
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onMouseLeave={handleCanvasMouseLeave}
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style={{
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width: '100%',
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height: 'auto',
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cursor: 'pointer',
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border: '1px solid #e5e7eb',
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borderRadius: '0.5rem 0.5rem 0 0',
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display: 'block'
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}}
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/>
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<canvas
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ref={timelineRef}
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width={800}
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height={30}
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style={{
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width: '100%',
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height: '30px',
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border: '1px solid #e5e7eb',
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borderTop: 'none',
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borderRadius: '0 0 0.5rem 0.5rem',
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display: 'block',
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background: '#ffffff'
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}}
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/>
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</div>
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{/* Playback Controls */}
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<div style={{ marginTop: '1rem', display: 'flex', gap: '1rem', alignItems: 'center', flexWrap: 'wrap' }}>
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