batch-import-dialog.tsx
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import React, { useCallback, useId, useRef, useState } from "react";
import { FileSpreadsheet, Upload, X } from "lucide-react";
import { Button } from "../ui/button";
import {
Dialog,
DialogContent,
DialogDescription,
DialogFooter,
DialogHeader,
DialogTitle,
} from "../ui/dialog";
import { Label } from "../ui/label";
import { cn } from "../ui/utils";
import { toast } from "sonner";
import { ApiError } from "../../lib/apiClient";
export type BatchImportDialogProps = {
open: boolean;
onOpenChange: (open: boolean) => void;
title: string;
description?: string;
/** 弹框底部「下载模板」 */
onDownloadTemplate: () => void | Promise<void>;
/** 选择文件后点击 Import 上传 */
onImportFile: (file: File) => Promise<{ successCount: number; failCount: number }>;
downloadingTemplate?: boolean;
};
const ACCEPT = ".xlsx,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
function formatFileSize(bytes: number): string {
if (!Number.isFinite(bytes) || bytes < 0) return "";
if (bytes < 1024) return `${bytes} B`;
if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
}
function pickFile(list: FileList | null): File | null {
const f = list?.[0];
if (!f) return null;
const name = f.name.toLowerCase();
if (!name.endsWith(".xlsx")) {
return null;
}
return f;
}
export function BatchImportDialog({
open,
onOpenChange,
title,
description,
onDownloadTemplate,
onImportFile,
downloadingTemplate = false,
}: BatchImportDialogProps) {
const fileInputId = useId();
const inputRef = useRef<HTMLInputElement | null>(null);
const [file, setFile] = useState<File | null>(null);
const [busy, setBusy] = useState(false);
const [dragActive, setDragActive] = useState(false);
const reset = () => {
setFile(null);
setDragActive(false);
if (inputRef.current) inputRef.current.value = "";
};
const clearSelectedFile = () => {
setFile(null);
if (inputRef.current) inputRef.current.value = "";
};
const applyFiles = useCallback((list: FileList | null) => {
const f = pickFile(list);
if (list?.length && !f) {
toast.error("Invalid file", { description: "Please choose an .xlsx file." });
return;
}
setFile(f);
}, []);
/** 延迟触发：避免嵌在 Radix Dialog 内时，同步 click() 导致部分浏览器不触发 change */
const openPicker = () => {
window.setTimeout(() => {
const el = inputRef.current;
if (!el) return;
el.value = "";
el.click();
}, 0);
};
return (
<Dialog
open={open}
onOpenChange={(v) => {
if (!v) reset();
onOpenChange(v);
}}
>
<DialogContent
className={cn("gap-4")}
style={{
padding: 20,
width: "min(50vw, calc(100vw - 2rem))",
maxWidth: "min(50vw, calc(100vw - 2rem))",
}}
>
<DialogHeader className="space-y-1.5">
<DialogTitle className="text-base">{title}</DialogTitle>
{description ? (
<DialogDescription className="text-xs leading-relaxed">{description}</DialogDescription>
) : null}
</DialogHeader>
<div className="flex flex-col gap-3">
<div className="space-y-2">
<Label htmlFor={fileInputId} className="text-sm">
Excel file (.xlsx)
</Label>
<input
id={fileInputId}
ref={inputRef}
type="file"
accept={ACCEPT}
className="sr-only"
tabIndex={-1}
aria-label="Choose Excel spreadsheet"
onChange={(e) => applyFiles(e.target.files)}
/>
<button
type="button"
className={cn(
"flex w-full flex-col items-center justify-center gap-2 rounded-lg border-2 border-dashed px-4 py-5 text-center transition-colors outline-none focus-visible:ring-2 focus-visible:ring-blue-500 focus-visible:ring-offset-2",
dragActive
? "border-blue-400 bg-blue-50/80"
: "border-gray-300 bg-gray-50/90 hover:border-gray-400 hover:bg-gray-50",
)}
onClick={openPicker}
onKeyDown={(e) => {
if (e.key === "Enter" || e.key === " ") {
e.preventDefault();
openPicker();
}
}}
onDragEnter={(e) => {
e.preventDefault();
setDragActive(true);
}}
onDragOver={(e) => {
e.preventDefault();
e.dataTransfer.dropEffect = "copy";
}}
onDragLeave={(e) => {
e.preventDefault();
if (!e.currentTarget.contains(e.relatedTarget as Node)) setDragActive(false);
}}
onDrop={(e) => {
e.preventDefault();
setDragActive(false);
applyFiles(e.dataTransfer.files);
}}
>
<Upload className="h-7 w-7 shrink-0 text-gray-400" aria-hidden />
<div className="text-sm text-gray-700">
<span className="font-medium text-blue-700">Browse</span>
<span className="text-gray-600"> or drop your file here</span>
</div>
<p className="text-xs text-gray-500">
{file ? "Click again to replace the file" : "Only .xlsx is accepted"}
</p>
</button>
{file ? (
<div
role="status"
aria-live="polite"
className="flex items-center gap-3 rounded-lg border border-blue-200 bg-blue-50/60 px-3 py-2.5"
>
<FileSpreadsheet className="h-8 w-8 shrink-0 text-blue-600" aria-hidden />
<div className="min-w-0 flex-1">
<div className="text-xs font-medium uppercase tracking-wide text-blue-800">Selected file</div>
<div className="truncate text-sm font-semibold text-gray-900" title={file.name}>
{file.name}
</div>
{formatFileSize(file.size) ? (
<div className="text-xs text-gray-600">{formatFileSize(file.size)}</div>
) : null}
</div>
<Button
type="button"
variant="outline"
size="sm"
className="shrink-0 border-gray-300 bg-white px-2 text-gray-700 hover:bg-gray-50"
onClick={(e) => {
e.stopPropagation();
clearSelectedFile();
}}
aria-label="Remove selected file"
>
<X className="h-4 w-4" aria-hidden />
<span className="ml-1 hidden sm:inline">Remove</span>
</Button>
</div>
) : (
<div className="rounded-lg border border-dashed border-gray-200 bg-gray-50/50 px-3 py-2 text-center text-xs text-gray-500">
No file selected yet — use Browse or drag an .xlsx above
</div>
)}
<p className="text-xs text-gray-600">
After a file is selected, click <span className="font-medium text-gray-900">Import</span> to upload
it to the server.
</p>
</div>
<div className="flex justify-stretch sm:justify-center">
<Button
type="button"
variant="outline"
className="w-full sm:w-auto"
size="sm"
disabled={downloadingTemplate}
onClick={() => void onDownloadTemplate()}
>
{downloadingTemplate ? "Downloading…" : "Download template"}
</Button>
</div>
</div>
<DialogFooter className="gap-2 sm:gap-0">
<Button
type="button"
variant="outline"
size="sm"
onClick={() => {
reset();
onOpenChange(false);
}}
>
Cancel
</Button>
<Button
type="button"
size="sm"
className="bg-blue-600 text-white hover:bg-blue-700 disabled:opacity-50"
disabled={!file || busy}
onClick={async () => {
if (!file) return;
setBusy(true);
try {
const r = await onImportFile(file);
toast.success("Import finished", {
description: `Success: ${r.successCount}, failed: ${r.failCount}`,
});
reset();
onOpenChange(false);
} catch (e) {
const msg = e instanceof ApiError ? e.message : e instanceof Error ? e.message : "Import failed.";
toast.error("Import failed", { description: msg });
} finally {
setBusy(false);
}
}}
>
{busy ? "Importing…" : "Import"}
</Button>
</DialogFooter>
</DialogContent>
</Dialog>
);
}