mirror change from https://github.com/binhkid2/FullStack-Blog-Nestjs-Nextjs-Postgres
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203
frontend/components/dashboard/image-uploader.tsx
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203
frontend/components/dashboard/image-uploader.tsx
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"use client";
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import { useCallback, useRef, useState } from "react";
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import { toast } from "sonner";
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import { Button } from "@/components/ui/button";
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import { Input } from "@/components/ui/input";
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import { Label } from "@/components/ui/label";
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import { Loader2, Upload, X, ImageIcon } from "lucide-react";
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import type { UploadImageResponse } from "@/app/api/upload-image/route";
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interface Props {
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/** Current image URL (controlled) */
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value?: string;
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/** Called when a new image URL is ready (after upload) or cleared (empty string) */
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onChange: (url: string) => void;
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/** Alt text value */
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altValue?: string;
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/** Called when alt text changes */
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onAltChange?: (alt: string) => void;
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/** Label shown above the dropzone */
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label?: string;
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}
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const ACCEPTED = "image/jpeg,image/png,image/gif,image/webp,image/svg+xml,image/avif";
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export function ImageUploader({
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value,
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onChange,
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altValue = "",
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onAltChange,
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label = "Featured Image",
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}: Props) {
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const [uploading, setUploading] = useState(false);
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const [dragOver, setDragOver] = useState(false);
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const fileInputRef = useRef<HTMLInputElement>(null);
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const uploadFile = useCallback(
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async (file: File) => {
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setUploading(true);
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try {
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const fd = new FormData();
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fd.append("file", file);
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const res = await fetch("/api/upload-image", {
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method: "POST",
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body: fd,
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});
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const data = (await res.json()) as UploadImageResponse & { error?: string };
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if (!res.ok || !data.success) {
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throw new Error(data.error || "Upload failed");
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}
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onChange(data.url);
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toast.success("Image uploaded successfully!");
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} catch (err) {
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toast.error(err instanceof Error ? err.message : "Upload failed");
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} finally {
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setUploading(false);
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}
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},
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[onChange]
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);
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// ── Drag & Drop handlers ───────────────────────────────────────────────────
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const handleDragOver = (e: React.DragEvent) => {
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e.preventDefault();
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setDragOver(true);
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};
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const handleDragLeave = () => setDragOver(false);
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const handleDrop = (e: React.DragEvent) => {
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e.preventDefault();
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setDragOver(false);
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const file = e.dataTransfer.files[0];
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if (file) uploadFile(file);
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};
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// ── File input change ──────────────────────────────────────────────────────
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const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
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const file = e.target.files?.[0];
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if (file) {
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uploadFile(file);
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// Reset so the same file can be re-selected if removed
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e.target.value = "";
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}
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};
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const handleRemove = () => {
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onChange("");
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onAltChange?.("");
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};
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return (
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<div className="space-y-2">
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<Label>{label}</Label>
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{value ? (
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/* ── Preview ──────────────────────────────────────────────────────── */
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<div className="relative rounded-xl overflow-hidden border bg-muted">
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{/* Plain <img> — domain is dynamic (R2/custom), avoids next/image remotePatterns config */}
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{/* eslint-disable-next-line @next/next/no-img-element */}
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<img
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src={value}
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alt={altValue || "Featured image preview"}
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className="aspect-video w-full object-cover"
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/>
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{/* Overlay — Replace / Remove actions */}
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<div className="absolute inset-0 flex items-center justify-center gap-2 bg-black/40 opacity-0 hover:opacity-100 transition-opacity">
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<Button
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type="button"
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size="sm"
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variant="secondary"
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onClick={() => fileInputRef.current?.click()}
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disabled={uploading}
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>
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{uploading ? (
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<Loader2 className="h-4 w-4 animate-spin" />
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) : (
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<Upload className="h-4 w-4" />
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)}
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<span className="ml-1.5">Replace</span>
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</Button>
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<Button
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type="button"
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size="sm"
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variant="destructive"
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onClick={handleRemove}
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disabled={uploading}
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>
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<X className="h-4 w-4" />
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<span className="ml-1.5">Remove</span>
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</Button>
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</div>
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{uploading && (
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<div className="absolute inset-0 flex items-center justify-center bg-black/50">
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<Loader2 className="h-8 w-8 animate-spin text-white" />
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</div>
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)}
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</div>
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) : (
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/* ── Dropzone ─────────────────────────────────────────────────────── */
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<button
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type="button"
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onClick={() => fileInputRef.current?.click()}
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onDragOver={handleDragOver}
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onDragLeave={handleDragLeave}
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onDrop={handleDrop}
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disabled={uploading}
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className={`
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w-full rounded-xl border-2 border-dashed p-8
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flex flex-col items-center justify-center gap-2
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text-sm text-muted-foreground transition-colors cursor-pointer
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hover:border-primary/50 hover:bg-muted/40
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focus:outline-none focus-visible:ring-2 focus-visible:ring-ring
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disabled:cursor-not-allowed disabled:opacity-60
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${dragOver ? "border-primary bg-primary/5" : "border-border"}
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`}
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>
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{uploading ? (
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<>
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<Loader2 className="h-8 w-8 animate-spin text-primary" />
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<span>Uploading…</span>
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</>
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) : (
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<>
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<ImageIcon className="h-8 w-8 opacity-40" />
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<span className="font-medium">
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{dragOver ? "Drop to upload" : "Click or drag an image here"}
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</span>
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<span className="text-xs opacity-70">
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JPEG · PNG · GIF · WebP · SVG · AVIF — max 10 MB
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</span>
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</>
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)}
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</button>
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)}
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{/* Hidden file input */}
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<input
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ref={fileInputRef}
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type="file"
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accept={ACCEPTED}
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className="hidden"
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onChange={handleFileChange}
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/>
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{/* Alt text field — always shown */}
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<div className="space-y-1">
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<Label className="text-xs text-muted-foreground">Image alt text</Label>
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<Input
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placeholder="Describe the image for accessibility…"
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value={altValue}
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onChange={(e) => onAltChange?.(e.target.value)}
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/>
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</div>
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</div>
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);
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}
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