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import Cropper from "react-easy-crop";
import type { Area } from "react-easy-crop";
import { RotateCw, ZoomIn, ZoomOut } from "lucide-react";
import { Button } from "../ui/button";
interface ImageCropperProps {
imageSrc: string;
onComplete: (croppedBlob: Blob) => void;
onCancel: () => void;
aspectRatio?: number;
}
export function ImageCropper({
imageSrc,
onComplete,
onCancel,
aspectRatio = 16 / 9,
}: ImageCropperProps) {
const [crop, setCrop] = useState({ x: 0, y: 0 });
const [zoom, setZoom] = useState(1);
const [rotation, setRotation] = useState(0);
const [croppedAreaPixels, setCroppedAreaPixels] = useState<Area | null>(null);
const [processing, setProcessing] = useState(false);
const onCropComplete = useCallback((_: Area, croppedPixels: Area) => {
setCroppedAreaPixels(croppedPixels);
}, []);
const handleConfirm = async () => {
if (!croppedAreaPixels) return;
setProcessing(true);
try {
const blob = await getCroppedImage(imageSrc, croppedAreaPixels, rotation);
onComplete(blob);
} finally {
setProcessing(false);
}
};
return (
<div className="space-y-4">
<div className="relative w-full h-80 bg-black rounded-lg overflow-hidden">
<Cropper
image={imageSrc}
crop={crop}
zoom={zoom}
rotation={rotation}
aspect={aspectRatio}
onCropChange={setCrop}
onZoomChange={setZoom}
onRotationChange={setRotation}
onCropComplete={onCropComplete}
/>
</div>
<div className="flex items-center justify-between">
<div className="flex items-center gap-2">
<Button
type="button"
variant="outline"
size="sm"
onClick={() => setZoom((z) => Math.max(1, z - 0.2))}
>
<ZoomOut className="h-4 w-4" />
</Button>
<input
type="range"
min={1}
max={3}
step={0.1}
value={zoom}
onChange={(e) => setZoom(Number(e.target.value))}
className="w-24 accent-primary-500"
/>
<Button
type="button"
variant="outline"
size="sm"
onClick={() => setZoom((z) => Math.min(3, z + 0.2))}
>
<ZoomIn className="h-4 w-4" />
</Button>
<Button
type="button"
variant="outline"
size="sm"
onClick={() => setRotation((r) => (r + 90) % 360)}
>
<RotateCw className="h-4 w-4" />
</Button>
</div>
<div className="flex items-center gap-2">
<Button type="button" variant="outline" size="sm" onClick={onCancel}>
Cancel
</Button>
<Button
type="button"
size="sm"
onClick={handleConfirm}
disabled={processing}
>
{processing ? "Processing..." : "Apply"}
</Button>
</div>
</div>
</div>
);
}
// Canvas helper: crop + rotate an image and return a Blob
async function getCroppedImage(
src: string,
crop: Area,
rotation: number,
): Promise<Blob> {
const image = await loadImage(src);
const canvas = document.createElement("canvas");
const ctx = canvas.getContext("2d");
if (!ctx) throw new Error("Canvas context not available");
const radians = (rotation * Math.PI) / 180;
const sin = Math.abs(Math.sin(radians));
const cos = Math.abs(Math.cos(radians));
// Size of the rotated bounding box
const bBoxWidth = image.width * cos + image.height * sin;
const bBoxHeight = image.width * sin + image.height * cos;
canvas.width = bBoxWidth;
canvas.height = bBoxHeight;
ctx.translate(bBoxWidth / 2, bBoxHeight / 2);
ctx.rotate(radians);
ctx.translate(-image.width / 2, -image.height / 2);
ctx.drawImage(image, 0, 0);
// Extract the cropped area
const data = ctx.getImageData(crop.x, crop.y, crop.width, crop.height);
canvas.width = crop.width;
canvas.height = crop.height;
ctx.putImageData(data, 0, 0);
return new Promise((resolve, reject) => {
canvas.toBlob(
(blob) =>
blob ? resolve(blob) : reject(new Error("Canvas toBlob failed")),
"image/jpeg",
0.92,
);
});
}
function loadImage(src: string): Promise<HTMLImageElement> {
return new Promise((resolve, reject) => {
const img = new Image();
img.crossOrigin = "anonymous";
img.onload = () => resolve(img);
img.onerror = reject;
img.src = src;
});
}
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