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87 lines
2.6 KiB
TypeScript
87 lines
2.6 KiB
TypeScript
import type { NextRequest } from 'next/server';
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import { NextResponse } from 'next/server';
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import fs from 'fs/promises';
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import path from 'path';
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const docsRoot = path.resolve(process.cwd(), 'content/docs');
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function isInvalidPage(str: string): boolean {
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if (!str || typeof str !== 'string') return true;
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if (/\[.*?\]\(.*?\)/.test(str) || /^https?:\/\//.test(str) || /[()]/.test(str)) return true;
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if (/^\s*---[\s\S]*---\s*$/.test(str)) return true;
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return false;
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}
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function getPageName(str: string): string {
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return str.startsWith('...') ? str.slice(3) : str;
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}
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async function findFirstValidPage(dirRelPath: string): Promise<string | null> {
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const absDir = path.join(docsRoot, dirRelPath);
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const metaPath = path.join(absDir, 'meta.json');
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try {
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const metaRaw = await fs.readFile(metaPath, 'utf-8');
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const meta = JSON.parse(metaRaw);
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if (!Array.isArray(meta.pages)) return null;
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for (const page of meta.pages) {
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if (isInvalidPage(page)) continue;
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const pageName = getPageName(page);
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const pagePath = path.join(dirRelPath, pageName);
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const candidateDir = path.join(docsRoot, pagePath);
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const candidateFile = candidateDir + '.mdx';
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try {
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await fs.access(candidateFile);
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return pagePath;
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} catch {
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try {
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const stat = await fs.stat(candidateDir);
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if (stat.isDirectory()) {
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const recursiveResult = await findFirstValidPage(pagePath);
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if (recursiveResult) return recursiveResult;
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}
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} catch {
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// ignore
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}
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}
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}
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} catch {
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// ignore
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}
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return null;
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}
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export async function GET(req: NextRequest) {
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const url = new URL(req.url);
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const rawPath = url.searchParams.get('path');
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if (!rawPath || !rawPath.startsWith('/docs')) {
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return NextResponse.json({ error: 'Invalid path' }, { status: 400 });
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}
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// 去除 /docs 前缀，且清理首尾斜杠
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const relPath = rawPath.replace(/^\/docs\/?/, '').replace(/^\/|\/$/g, '');
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try {
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// 先检测是否有该 mdx 文件
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const maybeFile = path.join(docsRoot, relPath + '.mdx');
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await fs.access(maybeFile);
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// 如果存在，返回完整路径（带 /docs）
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return NextResponse.json('/docs/' + relPath);
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} catch {
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// 不存在，尝试递归寻找第一个有效页面
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const found = await findFirstValidPage(relPath);
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if (found) {
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// 返回带 /docs 前缀的完整路径
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return NextResponse.json('/docs/' + found.replace(/\\/g, '/'));
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} else {
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return NextResponse.json({ error: 'No valid mdx page found' }, { status: 404 });
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}
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}
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}
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