feat: 添加 OCR 词汇提取功能
新增 OCR 页面，用户可上传教材词汇表截图，使用 GLM-4.6V 视觉模型 提取单词-释义对并保存到指定文件夹。 - AI 管道: src/lib/bigmodel/ocr/ (orchestrator, types) - 后端模块: src/modules/ocr/ (action-service-repository 架构) - 前端页面: src/app/(features)/ocr/ (拖拽上传、folder 选择) - i18n: 8 种语言翻译支持
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253
src/app/(features)/ocr/OCRClient.tsx
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253
src/app/(features)/ocr/OCRClient.tsx
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"use client";
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import { useState, useCallback, useRef } from "react";
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import { useTranslations } from "next-intl";
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import { PageLayout } from "@/components/ui/PageLayout";
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import { PrimaryButton, LightButton } from "@/design-system/base/button";
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import { Input } from "@/design-system/base/input";
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import { Select } from "@/design-system/base/select";
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import { Card } from "@/design-system/base/card";
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import { toast } from "sonner";
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import { Upload, FileImage, Loader2 } from "lucide-react";
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import { actionProcessOCR } from "@/modules/ocr/ocr-action";
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import { TSharedFolder } from "@/shared/folder-type";
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import { OCROutput } from "@/lib/bigmodel/ocr/types";
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interface OCRClientProps {
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initialFolders: TSharedFolder[];
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}
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export function OCRClient({ initialFolders }: OCRClientProps) {
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const t = useTranslations("ocr");
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const fileInputRef = useRef<HTMLInputElement>(null);
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const [selectedFile, setSelectedFile] = useState<File | null>(null);
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const [previewUrl, setPreviewUrl] = useState<string | null>(null);
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const [selectedFolderId, setSelectedFolderId] = useState<number | null>(
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initialFolders.length > 0 ? initialFolders[0].id : null
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);
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const [sourceLanguage, setSourceLanguage] = useState<string>("");
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const [targetLanguage, setTargetLanguage] = useState<string>("");
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const [isProcessing, setIsProcessing] = useState(false);
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const [ocrResult, setOcrResult] = useState<OCROutput | null>(null);
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const handleFileChange = useCallback((file: File | null) => {
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if (!file) return;
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if (!file.type.startsWith("image/")) {
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toast.error(t("processingFailed"));
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return;
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}
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const url = URL.createObjectURL(file);
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setPreviewUrl(url);
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setSelectedFile(file);
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setOcrResult(null);
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}, [t]);
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const handleDrop = useCallback((e: React.DragEvent<HTMLDivElement>) => {
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e.preventDefault();
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const file = e.dataTransfer.files[0];
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handleFileChange(file);
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}, [handleFileChange]);
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const handleDragOver = useCallback((e: React.DragEvent<HTMLDivElement>) => {
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e.preventDefault();
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}, []);
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const fileToBase64 = async (file: File): Promise<string> => {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = () => {
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const result = reader.result as string;
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const base64 = result.split(",")[1];
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resolve(base64);
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};
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reader.onerror = reject;
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reader.readAsDataURL(file);
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});
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};
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const handleProcess = async () => {
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if (!selectedFile) {
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toast.error(t("noImage"));
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return;
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}
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if (!selectedFolderId) {
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toast.error(t("noFolder"));
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return;
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}
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setIsProcessing(true);
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setOcrResult(null);
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try {
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const base64 = await fileToBase64(selectedFile);
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const result = await actionProcessOCR({
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imageBase64: base64,
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folderId: selectedFolderId,
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sourceLanguage: sourceLanguage || undefined,
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targetLanguage: targetLanguage || undefined,
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});
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if (result.success) {
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const folderName = initialFolders.find(f => f.id === selectedFolderId)?.name || "";
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toast.success(t("saved", { count: result.data?.pairsCreated ?? 0, folder: folderName }));
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} else {
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toast.error(result.message || t("processingFailed"));
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}
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} catch {
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toast.error(t("processingFailed"));
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} finally {
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setIsProcessing(false);
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}
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};
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const clearImage = () => {
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if (previewUrl) {
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URL.revokeObjectURL(previewUrl);
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}
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setPreviewUrl(null);
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setSelectedFile(null);
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setOcrResult(null);
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if (fileInputRef.current) {
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fileInputRef.current.value = "";
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}
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};
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return (
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<PageLayout>
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<div className="text-center mb-6">
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<h1 className="text-3xl font-bold text-gray-800 mb-2">{t("title")}</h1>
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<p className="text-gray-600">{t("description")}</p>
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</div>
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<div className="space-y-6">
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<Card variant="bordered" padding="lg">
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<div className="space-y-4">
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<div className="font-semibold text-gray-800 flex items-center gap-2">
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<Upload className="w-5 h-5" />
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{t("uploadImage")}
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</div>
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<div
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className={`border-2 border-dashed rounded-lg p-8 text-center cursor-pointer transition-colors ${
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previewUrl
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? "border-primary-300 bg-primary-50"
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: "border-gray-300 hover:border-primary-400 hover:bg-gray-50"
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}`}
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onDrop={handleDrop}
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onDragOver={handleDragOver}
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onClick={() => fileInputRef.current?.click()}
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>
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{previewUrl ? (
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<div className="space-y-3">
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<img
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src={previewUrl}
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alt="Preview"
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className="max-h-64 mx-auto rounded-lg shadow-md"
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/>
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<div className="flex justify-center gap-2">
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<LightButton
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type="button"
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onClick={(e) => {
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e.stopPropagation();
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clearImage();
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}}
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>
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{t("uploadImage")}
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</LightButton>
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</div>
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</div>
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) : (
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<div className="space-y-3 text-gray-500">
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<FileImage className="w-12 h-12 mx-auto text-gray-400" />
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<p>{t("dragDropHint")}</p>
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<p className="text-sm">{t("supportedFormats")}</p>
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</div>
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)}
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<input
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ref={fileInputRef}
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type="file"
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accept="image/*"
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className="hidden"
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onChange={(e) => handleFileChange(e.target.files?.[0] || null)}
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/>
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</div>
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</div>
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</Card>
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<Card variant="bordered" padding="lg">
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<div className="space-y-4">
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<div className="font-semibold text-gray-800">{t("selectFolder")}</div>
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{initialFolders.length > 0 ? (
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<Select
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value={selectedFolderId?.toString() || ""}
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onChange={(e) => setSelectedFolderId(Number(e.target.value))}
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className="w-full"
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>
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{initialFolders.map((folder) => (
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<option key={folder.id} value={folder.id}>
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{folder.name}
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</option>
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))}
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</Select>
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) : (
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<p className="text-gray-500 text-sm">{t("noFolders")}</p>
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)}
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</div>
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</Card>
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<Card variant="bordered" padding="lg">
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<div className="space-y-4">
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<div className="font-semibold text-gray-800">{t("languageHints")}</div>
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<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
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<div>
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<label className="text-sm text-gray-600 block mb-1">
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{t("sourceLanguageHint")}
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</label>
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<Input
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value={sourceLanguage}
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onChange={(e) => setSourceLanguage(e.target.value)}
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placeholder="English"
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/>
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</div>
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<div>
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<label className="text-sm text-gray-600 block mb-1">
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{t("targetLanguageHint")}
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</label>
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<Input
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value={targetLanguage}
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onChange={(e) => setTargetLanguage(e.target.value)}
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placeholder="Chinese"
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/>
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</div>
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</div>
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</div>
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</Card>
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<div className="flex justify-center">
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<PrimaryButton
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onClick={handleProcess}
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disabled={isProcessing || !selectedFile || !selectedFolderId}
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size="lg"
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className="px-8"
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>
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{isProcessing ? (
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<>
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<Loader2 className="w-5 h-5 mr-2 animate-spin" />
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{t("processing")}
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</>
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) : (
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t("process")
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)}
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</PrimaryButton>
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</div>
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</div>
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</PageLayout>
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);
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}
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