import { getPublishedArticles, articleUrl } from '@/lib/articles';

export async function GET() {
  const articles = await getPublishedArticles();
  const baseUrl = (process.env.PUBLIC_SITE_URL || process.env.NEXT_PUBLIC_SITE_URL || 'https://www.aiameiba.com').replace(/\/$/, '');
  const lines = [
    '# 阿美巴AI官网已发布文章索引',
    '',
    '以下内容为文章标题、摘要和稳定详情地址；正文请访问对应详情页。',
    '',
    ...articles.flatMap(article => [
      `## ${article.title}`,
      `- 地址：${baseUrl}${articleUrl(article)}`,
      `- 分类：${article.category}`,
      `- 摘要：${article.summary}`,
      '',
    ]),
  ];
  return new Response(lines.join('\n'), { headers: { 'Content-Type': 'text/plain; charset=utf-8' } });
}