"""Prepare the nkbmusic.com website in site/ for upload.

Writes site/config.js (backend URL and public key, from env.json) and site/sitemap.xml
(home and legal pages).

    python tools/build_site.py [--play-url URL] [--app-store-url URL]
"""
import argparse
import datetime
import json
import pathlib

ROOT = pathlib.Path(__file__).resolve().parent.parent
SITE = ROOT / 'site'
BASE = 'https://nkbmusic.com'


def main():
    ap = argparse.ArgumentParser()
    ap.add_argument('--play-url', default='', help='Google Play link, once the app is live')
    ap.add_argument('--app-store-url', default='', help='App Store link, once the app is live')
    args = ap.parse_args()

    env = json.loads((ROOT / 'env.json').read_text(encoding='utf-8'))
    config = {
        'supabaseUrl': env['SUPABASE_URL'],
        # The publishable (anon) key is public by design; row-level security protects the data.
        'supabaseKey': env['SUPABASE_PUBLISHABLE_KEY'],
        'mediaBaseUrl': env['MEDIA_BASE_URL'],
        'playUrl': args.play_url,
        'appStoreUrl': args.app_store_url,
    }
    (SITE / 'config.js').write_text(f'window.NK_CONFIG = {json.dumps(config, indent=2)};\n', encoding='utf-8')

    today = datetime.date.today().isoformat()
    urls = [(f'{BASE}/', '1.0'), (f'{BASE}/privacy', '0.3'), (f'{BASE}/terms', '0.3'),
            (f'{BASE}/delete-account', '0.3')]
    body = '\n'.join(f'  <url><loc>{u}</loc><lastmod>{today}</lastmod><priority>{p}</priority></url>'
                     for u, p in urls)
    (SITE / 'sitemap.xml').write_text(
        '<?xml version="1.0" encoding="UTF-8"?>\n'
        f'<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">\n{body}\n</urlset>\n', encoding='utf-8')
    (SITE / 'robots.txt').write_text(f'User-agent: *\nAllow: /\n\nSitemap: {BASE}/sitemap.xml\n', encoding='utf-8')
    print(f'config.js, sitemap.xml ({len(urls)} URLs) and robots.txt written to {SITE}')


if __name__ == '__main__':
    main()