import axios from 'axios';
import * as fs from 'fs';
import * as path from 'path';

const WP_URL = 'https://klz-cables.com';

async function fetchAllPosts() {
  let page = 1;
  let allPosts: any[] = [];
  
  while (true) {
    console.log(`Fetching posts page ${page}...`);
    try {
      const response = await axios.get(`${WP_URL}/wp-json/wp/v2/posts`, {
        params: {
          per_page: 100,
          page: page,
          _embed: true
        }
      });
      
      const posts = response.data;
      if (posts.length === 0) break;
      
      allPosts = allPosts.concat(posts);
      page++;
    } catch (error: any) {
      if (error.response && error.response.status === 400) {
        // End of pagination
        break;
      }
      console.error('Error fetching posts:', error);
      break;
    }
  }
  
  return allPosts;
}

function generateMdxContent(post: any, locale: 'en' | 'de') {
  const frontmatter = {
    title: post.title.rendered,
    date: post.date,
    excerpt: post.excerpt.rendered.replace(/<[^>]*>/g, '').trim(),
    featuredImage: post._embedded?.['wp:featuredmedia']?.[0]?.source_url || null,
    locale: locale
  };

  return `---
${JSON.stringify(frontmatter, null, 2)}
---

# ${post.title.rendered}

${post.content.rendered}
`;
}

async function run() {
  const posts = await fetchAllPosts();
  console.log(`Fetched ${posts.length} posts.`);

  for (const post of posts) {
    // Determine locale. 
    // If using Polylang, we might check categories or tags, or a specific field if exposed.
    // Or we can check the link structure if it contains /de/ or /en/ (though API link might be different)
    // Let's try to guess from the link or content language detection if needed.
    // For now, let's assume we can filter by category or just save all and manually sort if needed.
    // Actually, Polylang usually exposes 'lang' in the API if configured, or we might need to fetch by lang.
    
    // Simple heuristic: check if link contains '/de/'
    const locale = post.link.includes('/de/') ? 'de' : 'en';

    const mdx = generateMdxContent(post, locale);

    const outDir = path.join(process.cwd(), 'data', 'blog', locale);
    if (!fs.existsSync(outDir)) {
      fs.mkdirSync(outDir, { recursive: true });
    }

    const filename = `${post.slug}.mdx`;
    fs.writeFileSync(path.join(outDir, filename), mdx);
    console.log(`Saved ${filename} (${locale})`);
  }
}

run().catch(console.error);