/**
 * Cookie extraction + Netscape format conversion.
 * Direct port of GS extension/lib/cookies.js.
 */

async function extractCookiesForPlatform(platformKey) {
  const platform = PLATFORMS[platformKey];
  if (!platform) throw new Error(`Unknown platform: ${platformKey}`);

  const all = [];
  for (const domain of platform.domains) {
    try {
      const cookies = await browser.cookies.getAll({ domain });
      all.push(...cookies);
    } catch (e) {
      console.warn(`cookies.getAll failed for ${domain}:`, e);
    }
  }
  return deduplicateCookies(all);
}

function deduplicateCookies(cookies) {
  const seen = new Map();
  for (const c of cookies) {
    const key = `${c.name}|${c.domain}|${c.path}`;
    if (!seen.has(key)) {
      seen.set(key, c);
    } else {
      const existing = seen.get(key);
      if (c.expirationDate && (!existing.expirationDate || c.expirationDate > existing.expirationDate)) {
        seen.set(key, c);
      }
    }
  }
  return Array.from(seen.values());
}

function toNetscapeFormat(cookies) {
  const lines = ['# Netscape HTTP Cookie File'];
  for (const c of cookies) {
    let domain = c.domain.replace(/^\.?www\./, '.');
    if (!domain.startsWith('.')) domain = '.' + domain;
    const secure = c.secure ? 'TRUE' : 'FALSE';
    const expiration = c.expirationDate ? Math.floor(c.expirationDate) : 0;
    lines.push([domain, 'TRUE', c.path || '/', secure, String(expiration), c.name, c.value].join('\t'));
  }
  return lines.join('\n');
}

async function getCookieCount(platformKey) {
  try {
    return (await extractCookiesForPlatform(platformKey)).length;
  } catch {
    return 0;
  }
}