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import React, { useEffect, useRef, useState } from 'react';
import WaveSurfer from 'wavesurfer.js';
interface AudioWaveformProps {
audioUrl: string;
height?: number;
className?: string;
}
const AudioWaveform: React.FC<AudioWaveformProps> = ({
audioUrl,
height = 32,
className = ''
}) => {
const waveformRef = useRef<HTMLDivElement>(null);
const wavesurfer = useRef<WaveSurfer | null>(null);
const [isLoading, setIsLoading] = useState(true);
const [error, setError] = useState(false);
useEffect(() => {
let mounted = true;
const initWaveSurfer = async () => {
if (!waveformRef.current || !audioUrl) return;
try {
// Clean up any existing instance
if (wavesurfer.current) {
try {
wavesurfer.current.destroy();
} catch (e) {
// Silently ignore destroy errors
}
wavesurfer.current = null;
}
wavesurfer.current = WaveSurfer.create({
container: waveformRef.current,
waveColor: 'rgba(255, 255, 255, 0.6)',
progressColor: 'rgba(255, 255, 255, 0.9)',
cursorColor: 'transparent',
barWidth: 2,
barGap: 1,
height: height,
normalize: true,
interact: false,
});
// Event listeners
wavesurfer.current.on('ready', () => {
if (mounted) {
setIsLoading(false);
setError(false);
}
});
wavesurfer.current.on('error', (err) => {
console.error('WaveSurfer error:', err);
if (mounted) {
setError(true);
setIsLoading(false);
}
});
await wavesurfer.current.load(audioUrl);
} catch (err) {
console.error('Failed to initialize WaveSurfer:', err);
if (mounted) {
setError(true);
setIsLoading(false);
}
}
};
initWaveSurfer();
return () => {
mounted = false;
if (wavesurfer.current) {
try {
wavesurfer.current.destroy();
} catch (e) {
// Silently ignore destroy errors
}
wavesurfer.current = null;
}
};
}, [audioUrl, height]);
if (error) {
return (
<div className={`flex items-center justify-center ${className}`} style={{ height }}>
<span className="text-xs text-foreground/60">Audio unavailable</span>
</div>
);
}
return (
<div className={`relative ${className}`}>
{isLoading && (
<div className="absolute inset-0 flex items-center justify-center">
<span className="text-xs text-foreground/60">Loading...</span>
</div>
)}
<div
ref={waveformRef}
className={`w-full transition-opacity duration-200 ${isLoading ? 'opacity-0' : 'opacity-100'}`}
style={{ height }}
/>
</div>
);
};
export default AudioWaveform;
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