import { NextResponse } from 'next/server';
import type { NextRequest } from 'next/server';

// 需要登录才能访问的路径
const protectedPaths = ['/', '/publish', '/admin'];

// 公开路径 (无需登录)
const publicPaths = ['/login', '/register'];

export function proxy(request: NextRequest) {
    const { pathname } = request.nextUrl;

    // 检查是否有 access_token cookie
    const token = request.cookies.get('access_token');

    // 访问受保护页面但未登录 → 重定向到登录页
    if (protectedPaths.some(path => pathname === path || pathname.startsWith(path + '/')) && !token) {
        const loginUrl = new URL('/login', request.url);
        loginUrl.searchParams.set('from', pathname);
        return NextResponse.redirect(loginUrl);
    }

    // 已登录用户访问登录/注册页 → 重定向到首页
    if (publicPaths.includes(pathname) && token) {
        return NextResponse.redirect(new URL('/', request.url));
    }

    return NextResponse.next();
}

export const config = {
    matcher: ['/', '/publish/:path*', '/admin/:path*', '/login', '/register']
};
