import fs from 'fs';
import path from 'path';
import { locationData, serviceData, blogPostData } from '../src/data/seoData';

const BASE_URL = process.env.BASE_URL || 'https://bayareait.services';

/**
 * Generates the sitemap.xml content
 */
const generateSitemap = () => {
    const currentDate = new Date().toISOString().split('T')[0];

    let xml = `<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
`;

    // Static Pages
    const staticPages = [
        '',
        '/services',
        '/blog',
        '/contact',
        '/about'
    ];

    staticPages.forEach(page => {
        xml += `  <url>
    <loc>${BASE_URL}${page}</loc>
    <lastmod>${currentDate}</lastmod>
    <changefreq>monthly</changefreq>
    <priority>${page === '' ? '1.0' : '0.8'}</priority>
  </url>
`;
    });

    // Location Pages
    locationData.forEach(page => {
        xml += `  <url>
    <loc>${BASE_URL}/${page.slug}</loc>
    <lastmod>${currentDate}</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
`;
    });

    // Service Pages
    serviceData.forEach(page => {
        xml += `  <url>
    <loc>${BASE_URL}/${page.slug}</loc>
    <lastmod>${currentDate}</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>
`;
    });

    // Blog Posts
    blogPostData.forEach(post => {
        xml += `  <url>
    <loc>${BASE_URL}/blog/${post.slug}</loc>
    <lastmod>${currentDate}</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.7</priority>
  </url>
`;
    });

    xml += `</urlset>`;
    return xml;
};

// Write to public/sitemap.xml
const sitemap = generateSitemap();
const outputPath = path.resolve(process.cwd(), 'public/sitemap.xml');

// Ensure public directory exists
const publicDir = path.dirname(outputPath);
if (!fs.existsSync(publicDir)) {
    fs.mkdirSync(publicDir, { recursive: true });
}

fs.writeFileSync(outputPath, sitemap);
console.log(`✅ Sitemap generated at ${outputPath}`);