Files
lcbp3/frontend/components/forms/file-upload.tsx
2025-11-27 17:08:49 +07:00

124 lines
4.2 KiB
TypeScript

// File: components/forms/file-upload.tsx
"use client";
import { useRef, useState } from "react";
import { UploadCloud, X, File, FileText, Image as ImageIcon } from "lucide-react";
import { Button } from "@/components/ui/button";
import { cn } from "@/lib/utils";
interface FileUploadProps {
onFilesChange: (files: File[]) => void;
maxFiles?: number;
maxSize?: number; // MB
accept?: string; // e.g. ".pdf,.jpg,.png"
}
export function FileUpload({ onFilesChange, maxFiles = 5, maxSize = 50, accept }: FileUploadProps) {
const [dragActive, setDragActive] = useState(false);
const [files, setFiles] = useState<File[]>([]);
const inputRef = useRef<HTMLInputElement>(null);
const handleDrag = (e: React.DragEvent) => {
e.preventDefault();
e.stopPropagation();
if (e.type === "dragenter" || e.type === "dragover") {
setDragActive(true);
} else if (e.type === "dragleave") {
setDragActive(false);
}
};
const handleDrop = (e: React.DragEvent) => {
e.preventDefault();
e.stopPropagation();
setDragActive(false);
if (e.dataTransfer.files && e.dataTransfer.files[0]) {
handleFiles(Array.from(e.dataTransfer.files));
}
};
const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
e.preventDefault();
if (e.target.files && e.target.files[0]) {
handleFiles(Array.from(e.target.files));
}
};
const handleFiles = (newFiles: File[]) => {
// Validate size & type here if needed
const validFiles = newFiles.slice(0, maxFiles - files.length);
const updatedFiles = [...files, ...validFiles];
setFiles(updatedFiles);
onFilesChange(updatedFiles);
};
const removeFile = (idx: number) => {
const updatedFiles = files.filter((_, i) => i !== idx);
setFiles(updatedFiles);
onFilesChange(updatedFiles);
};
const getFileIcon = (type: string) => {
if (type.includes("image")) return <ImageIcon className="h-5 w-5 text-blue-500" />;
if (type.includes("pdf")) return <FileText className="h-5 w-5 text-red-500" />;
return <File className="h-5 w-5 text-gray-500" />;
};
return (
<div className="space-y-4">
<div
className={cn(
"relative flex flex-col items-center justify-center w-full h-32 rounded-lg border-2 border-dashed transition-colors",
dragActive ? "border-primary bg-primary/5" : "border-muted-foreground/25 hover:bg-muted/5"
)}
onDragEnter={handleDrag}
onDragLeave={handleDrag}
onDragOver={handleDrag}
onDrop={handleDrop}
>
<input
ref={inputRef}
className="hidden"
type="file"
multiple
accept={accept}
onChange={handleChange}
/>
<div className="flex flex-col items-center justify-center pt-5 pb-6 text-center cursor-pointer" onClick={() => inputRef.current?.click()}>
<UploadCloud className="w-8 h-8 mb-2 text-muted-foreground" />
<p className="mb-1 text-sm text-gray-500 dark:text-gray-400">
<span className="font-semibold">Click to upload</span> or drag and drop
</p>
<p className="text-xs text-gray-500 dark:text-gray-400">
PDF, DWG, DOCX (Max {maxSize}MB)
</p>
</div>
</div>
{/* File List */}
{files.length > 0 && (
<div className="space-y-2">
{files.map((file, idx) => (
<div key={idx} className="flex items-center justify-between p-2 bg-muted/40 rounded-md border text-sm">
<div className="flex items-center gap-2 overflow-hidden">
{getFileIcon(file.type)}
<span className="truncate max-w-[200px]">{file.name}</span>
<span className="text-xs text-muted-foreground">({(file.size / 1024 / 1024).toFixed(2)} MB)</span>
</div>
<Button
type="button"
variant="ghost"
size="icon"
className="h-6 w-6 text-muted-foreground hover:text-destructive"
onClick={() => removeFile(idx)}
>
<X className="h-4 w-4" />
</Button>
</div>
))}
</div>
)}
</div>
);
}