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af980d7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | import { useEffect, useRef, useState } from 'react';
import { Camera, CameraOff, RefreshCcw, CheckCircle2 } from 'lucide-react';
import styles from './CameraCapture.module.css';
export default function CameraCapture({ onCapture }) {
const videoRef = useRef(null);
const canvasRef = useRef(null);
const streamRef = useRef(null);
const [status, setStatus] = useState('idle'); // idle | requesting | ready | error
const [error, setError] = useState('');
useEffect(() => {
return () => {
if (streamRef.current) {
streamRef.current.getTracks().forEach((track) => track.stop());
}
};
}, []);
useEffect(() => {
const video = videoRef.current;
const stream = streamRef.current;
if (!video || !stream) return;
let cancelled = false;
const attachStream = async () => {
try {
video.srcObject = stream;
await video.play();
} catch (cameraError) {
if (!cancelled) {
setStatus('error');
setError(cameraError?.message || 'Unable to render camera preview');
}
}
};
attachStream();
return () => {
cancelled = true;
};
}, [status]);
const startCamera = async () => {
setStatus('requesting');
setError('');
try {
if (streamRef.current) {
streamRef.current.getTracks().forEach((track) => track.stop());
}
const stream = await navigator.mediaDevices.getUserMedia({
video: {
facingMode: 'user',
width: { ideal: 1280 },
height: { ideal: 720 },
},
audio: false,
});
streamRef.current = stream;
setStatus('ready');
} catch (cameraError) {
setStatus('error');
setError(cameraError?.message || 'Camera access failed');
}
};
const stopCamera = () => {
if (streamRef.current) {
streamRef.current.getTracks().forEach((track) => track.stop());
streamRef.current = null;
}
if (videoRef.current) {
videoRef.current.srcObject = null;
}
setStatus('idle');
};
const capturePhoto = async () => {
if (!videoRef.current || !canvasRef.current) return;
const video = videoRef.current;
const canvas = canvasRef.current;
canvas.width = video.videoWidth || 1280;
canvas.height = video.videoHeight || 720;
const context = canvas.getContext('2d');
if (!context) return;
context.drawImage(video, 0, 0, canvas.width, canvas.height);
const blob = await new Promise((resolve) => canvas.toBlob(resolve, 'image/png', 0.95));
if (!blob) return;
const file = new File([blob], `uaide-capture-${Date.now()}.png`, { type: 'image/png' });
onCapture(file);
};
return (
<div className={styles.card}>
<div className={styles.header}>
<div className={styles.titleWrap}>
<Camera size={16} />
<span>Real-Time Capture</span>
</div>
{status === 'ready' && (
<button type="button" className={styles.secondaryBtn} onClick={stopCamera}>
<CameraOff size={14} />
<span>Stop</span>
</button>
)}
</div>
<div className={styles.viewport}>
<video
ref={videoRef}
playsInline
muted
autoPlay
className={`${styles.video} ${status === 'ready' ? styles.videoVisible : styles.videoHidden}`}
/>
{status !== 'ready' && (
<div className={styles.placeholder}>
<Camera size={26} />
<p>Capture a live image for immediate forensic analysis.</p>
</div>
)}
<canvas ref={canvasRef} className={styles.canvas} />
</div>
<div className={styles.actions}>
{status === 'idle' && (
<button type="button" className={styles.primaryBtn} onClick={startCamera}>
<Camera size={15} />
<span>Open Camera</span>
</button>
)}
{status === 'requesting' && (
<button type="button" className={styles.primaryBtn} disabled>
<RefreshCcw size={15} className={styles.spin} />
<span>Requesting Access…</span>
</button>
)}
{status === 'ready' && (
<button type="button" className={styles.primaryBtn} onClick={capturePhoto}>
<CheckCircle2 size={15} />
<span>Capture & Analyse</span>
</button>
)}
{status === 'error' && (
<>
<p className={styles.error}>{error}</p>
<button type="button" className={styles.primaryBtn} onClick={startCamera}>
<RefreshCcw size={15} />
<span>Retry Camera</span>
</button>
</>
)}
</div>
</div>
);
}
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