#!/usr/bin/env node

/**
 * Check if npm packages are at least 2 weeks old before installation
 * Usage: node scripts/check-package-age.js
 */

const https = require('https');
const fs = require('fs');
const path = require('path');

const TWO_WEEKS_MS = 14 * 24 * 60 * 60 * 1000;

function getPackageInfo(packageName, version) {
  return new Promise((resolve, reject) => {
    // Remove version prefixes like ^, ~, >=
    const cleanVersion = version.replace(/^[\^~>=]+/, '');

    const url = `https://registry.npmjs.org/${packageName}/${cleanVersion}`;

    https.get(url, (res) => {
      let data = '';

      res.on('data', (chunk) => {
        data += chunk;
      });

      res.on('end', () => {
        try {
          const info = JSON.parse(data);
          resolve({
            name: packageName,
            version: cleanVersion,
            published: info.time || info._time,
            error: null
          });
        } catch (err) {
          reject(new Error(`Failed to parse response for ${packageName}@${cleanVersion}`));
        }
      });
    }).on('error', (err) => {
      reject(err);
    });
  });
}

async function checkPackageAge() {
  const packageJsonPath = path.join(__dirname, '../frontend/package.json');
  const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));

  const allDeps = {
    ...packageJson.dependencies,
    ...packageJson.devDependencies
  };

  console.log('Checking package ages (must be at least 2 weeks old)...\n');

  const tooNew = [];
  const errors = [];

  for (const [name, version] of Object.entries(allDeps)) {
    try {
      const info = await getPackageInfo(name, version);
      const publishDate = new Date(info.published);
      const age = Date.now() - publishDate.getTime();
      const ageInDays = Math.floor(age / (24 * 60 * 60 * 1000));

      if (age < TWO_WEEKS_MS) {
        tooNew.push({
          name,
          version: info.version,
          age: ageInDays,
          published: publishDate.toISOString().split('T')[0]
        });
        console.log(`❌ ${name}@${info.version} - ${ageInDays} days old (published ${publishDate.toISOString().split('T')[0]})`);
      } else {
        console.log(`✓ ${name}@${info.version} - ${ageInDays} days old`);
      }
    } catch (err) {
      errors.push({ name, version, error: err.message });
      console.log(`⚠️  ${name}@${version} - Could not check: ${err.message}`);
    }
  }

  console.log('\n' + '='.repeat(80));

  if (tooNew.length > 0) {
    console.log(`\n❌ FAILED: ${tooNew.length} package(s) are newer than 2 weeks:\n`);
    tooNew.forEach(pkg => {
      console.log(`  - ${pkg.name}@${pkg.version} (${pkg.age} days old, published ${pkg.published})`);
    });
    process.exit(1);
  } else if (errors.length > 0) {
    console.log(`\n⚠️  WARNING: Could not verify ${errors.length} package(s)`);
    process.exit(0);
  } else {
    console.log('\n✓ SUCCESS: All packages are at least 2 weeks old');
    process.exit(0);
  }
}

checkPackageAge();