const jwt = require('jsonwebtoken');
const http = require('http');
const { execSync } = require('child_process');
const fs = require('fs');

const KEY = 'user:1022172:47';
const SECRET = 'da4e4367277668aa6e048b0a04d1a417ba8bad630f4ac37ccdcea064a9de151e';
const ADDON_ID = 'verstak-bridge@verstak.app';

function makeJWT() {
  return jwt.sign({
    iss: KEY, jti: Math.random().toString(36).slice(2),
    iat: Math.floor(Date.now() / 1000), exp: Math.floor(Date.now() / 1000) + 300
  }, SECRET);
}

function proxyReq(method, url, headers, body) {
  return new Promise((resolve, reject) => {
    const u = new URL(url);
    const req = http.request({
      hostname: 'localhost', port: 12334, path: url, method,
      headers: Object.assign({ 'Host': u.hostname }, headers)
    }, res => {
      const chunks = [];
      res.on('data', c => chunks.push(c));
      res.on('end', () => resolve({ status: res.statusCode, body: Buffer.concat(chunks) }));
    });
    req.on('error', reject);
    if (body) req.write(body);
    req.end();
  });
}

async function main() {
  const token = makeJWT();
  const auth = 'JWT ' + token;

  // List all versions
  console.log('==> Listing all versions...');
  const vRes = await proxyReq('GET', `https://addons.mozilla.org/api/v5/addons/addon/${ADDON_ID}/versions/?filter=all_with_unlisted`, { 'Authorization': auth });
  const vData = JSON.parse(vRes.body.toString());
  
  for (const v of vData.results || []) {
    const file = v.files?.[0] || v.file;
    console.log(`  v${v.version} id=${v.id} channel=${v.channel} file_status=${file?.status} file_url=${file?.url || 'none'}`);
    
    if (v.version === '1.0.2' && file?.status === 'public' && file?.url) {
      console.log(`\n==> Downloading signed 1.0.2 from: ${file.url}`);
      fs.mkdirSync('release/firefox', { recursive: true });
      const out = 'release/firefox/verstak-firefox-1.0.2.xpi';
      execSync(`curl -s -x http://localhost:12334 -L "${file.url}" -H "Authorization: ${auth}" -o "${out}"`, { timeout: 60000 });
      
      const size = fs.statSync(out).size;
      const fd = fs.openSync(out, 'r');
      const magic = Buffer.alloc(4);
      fs.readSync(fd, magic, 0, 4, 0);
      fs.closeSync(fd);
      
      console.log(`  Saved: ${out} (${(size / 1024).toFixed(1)} KB)`);
      console.log(`  ZIP: ${magic[0]===0x50 && magic[1]===0x4B ? 'VALID ✓' : 'INVALID ✗'}`);
      
      if (magic[0]===0x50 && magic[1]===0x4B) {
        execSync(`unzip -l "${out}" 2>&1 | grep -v "^Archive" | grep -v "^  Length" | grep -v "^---------" | grep -v "^-$"`);
      }
      return;
    }
  }
  
  console.log('\n==> 1.0.2 not yet public, checking if we need to wait...');
}

main().catch(e => { console.error(e.message); process.exit(1); });