openrag/frontend/components/file-upload-area.tsx
2025-11-14 13:45:32 -06:00

103 lines
2.9 KiB
TypeScript

"use client";
import * as React from "react";
import { cn } from "@/lib/utils";
import { Button } from "@/components/ui/button";
import { Loader2 } from "lucide-react";
interface FileUploadAreaProps {
onFileSelected?: (file: File) => void;
isLoading?: boolean;
className?: string;
}
const FileUploadArea = React.forwardRef<HTMLDivElement, FileUploadAreaProps>(
({ onFileSelected, isLoading = false, className }, ref) => {
const [isDragging, setIsDragging] = React.useState(false);
const fileInputRef = React.useRef<HTMLInputElement>(null);
const handleDragOver = (e: React.DragEvent) => {
e.preventDefault();
setIsDragging(true);
};
const handleDragLeave = (e: React.DragEvent) => {
e.preventDefault();
setIsDragging(false);
};
const handleDrop = (e: React.DragEvent) => {
e.preventDefault();
setIsDragging(false);
const files = Array.from(e.dataTransfer.files);
if (files.length > 0 && onFileSelected) {
onFileSelected(files[0]);
}
};
const handleFileSelect = (e: React.ChangeEvent<HTMLInputElement>) => {
const files = Array.from(e.target.files || []);
if (files.length > 0 && onFileSelected) {
onFileSelected(files[0]);
}
};
const handleClick = () => {
if (!isLoading) {
fileInputRef.current?.click();
}
};
return (
<div
ref={ref}
className={cn(
"relative flex min-h-[150px] w-full cursor-pointer flex-col items-center justify-center rounded-lg border-2 border-dashed border-border bg-background p-6 text-center transition-colors hover:bg-muted/50",
isDragging && "border-primary bg-primary/5",
isLoading && "cursor-not-allowed opacity-50",
className,
)}
onDragOver={handleDragOver}
onDragLeave={handleDragLeave}
onDrop={handleDrop}
onClick={handleClick}
>
<input
ref={fileInputRef}
type="file"
onChange={handleFileSelect}
className="hidden"
disabled={isLoading}
/>
<div className="flex flex-col items-center gap-4">
{isLoading && (
<div className="rounded-full bg-muted p-4">
<Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
</div>
)}
<div className="space-y-2">
<h3 className="text-lg font-medium text-foreground">
{isLoading
? "Processing file..."
: "Drop files here or click to upload"}
</h3>
<p className="text-sm text-muted-foreground">
{isLoading
? "Please wait while your file is being processed"
: ""}
</p>
</div>
{!isLoading && <Button size="sm">+ Upload</Button>}
</div>
</div>
);
},
);
FileUploadArea.displayName = "FileUploadArea";
export { FileUploadArea };