mlogclub
403 lines
11 KiB
TypeScript
403 lines
11 KiB
TypeScript
"use client";
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import { DownloadIcon, FileUpIcon, InfoIcon } from "lucide-react";
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import { useMemo, useRef, useState } from "react";
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import { toast } from "sonner";
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import { ProjectDialog } from "@/components/project-dialog";
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import { Button } from "@/components/ui/button";
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import {
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Field,
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FieldContent,
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FieldDescription,
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FieldGroup,
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FieldLabel,
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} from "@/components/ui/field";
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import { Input } from "@/components/ui/input";
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import { ScrollArea } from "@/components/ui/scroll-area";
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import { createKnowledgeFAQ, type CreateKnowledgeFAQPayload } from "@/lib/api/admin";
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type FAQImportDialogProps = {
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open: boolean;
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knowledgeBaseId: number | null;
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importing: boolean;
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onOpenChange: (open: boolean) => void;
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onImportingChange: (importing: boolean) => void;
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onImported: () => Promise<void>;
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};
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type ParsedFAQRow = {
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rowNo: number;
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question: string;
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answer: string;
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similarQuestions: string[];
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remark: string;
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};
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type ParseResult = {
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rows: ParsedFAQRow[];
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warnings: string[];
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};
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const templateContent = [
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"question,answer,similarQuestions,remark",
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'"如何重置密码?","进入个人设置后点击重置密码。","忘记密码|密码重置在哪里","账号类FAQ"',
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'"支持哪些接入渠道?","目前支持网站组件、企业微信等渠道接入。","有哪些渠道|支持什么渠道","渠道说明"',
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].join("\n");
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const acceptedHeaderMap: Record<string, keyof Omit<ParsedFAQRow, "rowNo">> = {
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question: "question",
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"标准问题": "question",
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"问题": "question",
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answer: "answer",
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"答案": "answer",
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similarquestions: "similarQuestions",
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"similarQuestions": "similarQuestions",
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"相似问": "similarQuestions",
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"相似问题": "similarQuestions",
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remark: "remark",
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"备注": "remark",
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};
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function normalizeHeader(value: string) {
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return value.trim().replace(/^\uFEFF/, "").toLowerCase();
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}
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function parseDelimitedText(input: string): string[][] {
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const text = input.replace(/\r\n/g, "\n").replace(/\r/g, "\n");
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const rows: string[][] = [];
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let row: string[] = [];
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let cell = "";
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let inQuotes = false;
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let delimiter = ",";
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function pushCell() {
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row.push(cell.trim());
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cell = "";
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}
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function pushRow() {
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if (row.length === 1 && row[0] === "" && rows.length === 0) {
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row = [];
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return;
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}
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if (row.some((item) => item !== "")) {
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rows.push(row);
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}
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row = [];
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}
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for (let i = 0; i < text.length; i += 1) {
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const char = text[i];
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const next = text[i + 1];
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if (!inQuotes && rows.length === 0 && row.length === 0 && cell.length > 0 && char === "\t") {
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delimiter = "\t";
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}
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if (char === '"') {
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if (inQuotes && next === '"') {
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cell += '"';
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i += 1;
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continue;
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}
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inQuotes = !inQuotes;
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continue;
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}
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if (!inQuotes && char === delimiter) {
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pushCell();
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continue;
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}
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if (!inQuotes && char === "\n") {
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pushCell();
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pushRow();
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continue;
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}
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cell += char;
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}
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if (cell.length > 0 || row.length > 0) {
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pushCell();
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pushRow();
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}
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return rows;
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}
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function parseSimilarQuestions(value: string) {
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return value
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.split(/\r?\n|\|/g)
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.map((item) => item.trim())
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.filter(Boolean);
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}
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function parseFAQFileContent(input: string): ParseResult {
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const table = parseDelimitedText(input);
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if (table.length === 0) {
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throw new Error("文件内容为空");
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}
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const headerRow = table[0];
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const headerMap = new Map<keyof Omit<ParsedFAQRow, "rowNo">, number>();
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for (let index = 0; index < headerRow.length; index += 1) {
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const header = acceptedHeaderMap[normalizeHeader(headerRow[index])];
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if (header && !headerMap.has(header)) {
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headerMap.set(header, index);
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}
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}
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if (!headerMap.has("question") || !headerMap.has("answer")) {
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throw new Error("导入模板缺少 question/answer 列");
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}
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const rows: ParsedFAQRow[] = [];
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const warnings: string[] = [];
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for (let index = 1; index < table.length; index += 1) {
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const current = table[index];
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const rowNo = index + 1;
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const question = current[headerMap.get("question") ?? -1]?.trim() ?? "";
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const answer = current[headerMap.get("answer") ?? -1]?.trim() ?? "";
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const similarQuestionsRaw = current[headerMap.get("similarQuestions") ?? -1]?.trim() ?? "";
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const remark = current[headerMap.get("remark") ?? -1]?.trim() ?? "";
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if (!question && !answer && !similarQuestionsRaw && !remark) {
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continue;
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}
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if (!question || !answer) {
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warnings.push(`第 ${rowNo} 行缺少问题或答案，已跳过`);
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continue;
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}
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rows.push({
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rowNo,
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question,
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answer,
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similarQuestions: parseSimilarQuestions(similarQuestionsRaw),
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remark,
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});
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}
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return { rows, warnings };
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}
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function downloadTemplate() {
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const blob = new Blob([templateContent], { type: "text/csv;charset=utf-8;" });
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const url = URL.createObjectURL(blob);
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const link = document.createElement("a");
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link.href = url;
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link.download = "knowledge-faq-import-template.csv";
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link.click();
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URL.revokeObjectURL(url);
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}
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function buildPayload(row: ParsedFAQRow, knowledgeBaseId: number): CreateKnowledgeFAQPayload {
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return {
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knowledgeBaseId,
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question: row.question,
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answer: row.answer,
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similarQuestions: row.similarQuestions,
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remark: row.remark,
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};
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}
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export function FAQImportDialog({
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open,
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knowledgeBaseId,
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importing,
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onOpenChange,
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onImportingChange,
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onImported,
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}: FAQImportDialogProps) {
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const fileInputRef = useRef<HTMLInputElement | null>(null);
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const [fileName, setFileName] = useState("");
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const [rows, setRows] = useState<ParsedFAQRow[]>([]);
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const [warnings, setWarnings] = useState<string[]>([]);
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const previewRows = useMemo(() => rows.slice(0, 5), [rows]);
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function resetState() {
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setFileName("");
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setRows([]);
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setWarnings([]);
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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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async function handleFileChange(event: React.ChangeEvent<HTMLInputElement>) {
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const file = event.target.files?.[0];
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if (!file) {
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return;
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}
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try {
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const content = await file.text();
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const parsed = parseFAQFileContent(content);
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setFileName(file.name);
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setRows(parsed.rows);
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setWarnings(parsed.warnings);
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if (parsed.rows.length === 0) {
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toast.error("没有可导入的FAQ记录");
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} else {
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toast.success(`已解析 ${parsed.rows.length} 条FAQ`);
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}
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} catch (error) {
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resetState();
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toast.error(error instanceof Error ? error.message : "解析导入文件失败");
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}
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}
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async function handleImport() {
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if (!knowledgeBaseId || rows.length === 0 || importing) {
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return;
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}
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onImportingChange(true);
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let successCount = 0;
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const failedRows: string[] = [];
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try {
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for (const row of rows) {
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try {
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await createKnowledgeFAQ(buildPayload(row, knowledgeBaseId));
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successCount += 1;
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} catch (error) {
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failedRows.push(
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`第 ${row.rowNo} 行：${error instanceof Error ? error.message : "导入失败"}`
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);
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}
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}
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await onImported();
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if (successCount > 0) {
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toast.success(`成功导入 ${successCount} 条FAQ`);
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}
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if (failedRows.length > 0) {
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toast.error(`有 ${failedRows.length} 条FAQ导入失败`);
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setWarnings((current) => [...current, ...failedRows]);
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return;
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}
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resetState();
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onOpenChange(false);
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} finally {
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onImportingChange(false);
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}
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}
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return (
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<ProjectDialog
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open={open}
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onOpenChange={(nextOpen) => {
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if (!nextOpen && !importing) {
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resetState();
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}
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onOpenChange(nextOpen);
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}}
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title="导入FAQ"
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description="上传 CSV 文件批量导入 FAQ。必填列为 question、answer；similarQuestions 使用 | 或换行分隔。"
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size="lg"
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footer={
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<>
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<Button type="button" variant="outline" onClick={() => downloadTemplate()}>
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<DownloadIcon className="size-4" />
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下载模板
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</Button>
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<Button type="button" variant="outline" onClick={() => onOpenChange(false)} disabled={importing}>
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取消
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</Button>
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<Button type="button" onClick={() => void handleImport()} disabled={importing || rows.length === 0}>
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{importing ? "导入中..." : `开始导入${rows.length > 0 ? ` (${rows.length})` : ""}`}
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</Button>
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</>
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}
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>
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<FieldGroup>
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<Field>
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<FieldLabel htmlFor="faq-import-file">导入文件</FieldLabel>
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<FieldContent>
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<div className="flex items-center gap-2">
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<Input
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id="faq-import-file"
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ref={fileInputRef}
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type="file"
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accept=".csv,text/csv,.txt"
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onChange={(event) => void handleFileChange(event)}
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/>
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<Button
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type="button"
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variant="outline"
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onClick={() => fileInputRef.current?.click()}
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>
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<FileUpIcon className="size-4" />
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选择文件
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</Button>
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</div>
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<FieldDescription>
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支持 UTF-8 编码的 CSV 或制表符文本文件。
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</FieldDescription>
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</FieldContent>
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</Field>
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{fileName ? (
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<div className="rounded-md border bg-muted/20 px-3 py-2 text-sm">
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当前文件：{fileName}
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</div>
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) : null}
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{warnings.length > 0 ? (
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<div className="rounded-md border border-amber-200 bg-amber-50 px-4 py-3 text-sm text-amber-900">
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<div className="mb-2 flex items-center gap-2 font-medium">
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<InfoIcon className="size-4" />
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导入提示
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</div>
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<ul className="space-y-1">
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{warnings.map((item, index) => (
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<li key={`${item}-${index}`}>{item}</li>
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))}
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</ul>
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</div>
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) : null}
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<div className="rounded-md border">
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<div className="border-b px-4 py-3 text-sm font-medium">
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导入预览
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</div>
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{previewRows.length > 0 ? (
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<ScrollArea className="max-h-80">
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<div className="divide-y">
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{previewRows.map((row) => (
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<div key={row.rowNo} className="space-y-2 px-4 py-3 text-sm">
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<div>
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<span className="text-muted-foreground">第 {row.rowNo} 行</span>
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</div>
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<div>
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<div className="font-medium">{row.question}</div>
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<div className="mt-1 whitespace-pre-wrap text-muted-foreground">
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{row.answer}
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</div>
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</div>
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<div className="text-muted-foreground">
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相似问：{row.similarQuestions.length > 0 ? row.similarQuestions.join(" / ") : "无"}
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</div>
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<div className="text-muted-foreground">备注：{row.remark || "无"}</div>
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</div>
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))}
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</div>
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</ScrollArea>
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) : (
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<div className="px-4 py-12 text-center text-sm text-muted-foreground">
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上传文件后可预览前 5 条FAQ
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</div>
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)}
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</div>
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</FieldGroup>
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</ProjectDialog>
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);
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}
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