import { firefox } from 'playwright';
import { pool } from './src/db/migrate.js';
import { getRandomProxy } from './src/utils/proxyManager.js';

const dispensaryId = parseInt(process.argv[2] || '112', 10);

interface Brand {
  slug: string;
  name: string;
  url: string;
}

async function scrapeBrandsList(menuUrl: string, context: any, page: any): Promise<Brand[]> {
  try {
    const brandsUrl = `${menuUrl}/brands`;
    console.log(`📄 Loading brands page: ${brandsUrl}`);

    await page.goto(brandsUrl, {
      waitUntil: 'domcontentloaded',
      timeout: 60000
    });

    console.log(`⏳ Waiting for brands to render...`);
    await page.waitForSelector('a[href*="/brands/"]', { timeout: 45000 });
    console.log(`✅ Brands appeared!`);
    await page.waitForTimeout(3000);

    // Scroll to load all brands
    console.log(`📜 Scrolling to load all brands...`);
    let previousHeight = 0;
    let scrollAttempts = 0;
    const maxScrolls = 10;

    while (scrollAttempts < maxScrolls) {
      await page.evaluate(() => window.scrollTo(0, document.body.scrollHeight));
      await page.waitForTimeout(1500);

      const currentHeight = await page.evaluate(() => document.body.scrollHeight);
      if (currentHeight === previousHeight) break;

      previousHeight = currentHeight;
      scrollAttempts++;
    }

    // Extract all brand links
    const brands = await page.evaluate(() => {
      const brandLinks = Array.from(document.querySelectorAll('a[href*="/brands/"]'));

      const extracted = brandLinks.map(link => {
        const href = link.getAttribute('href') || '';
        const slug = href.split('/brands/')[1]?.replace(/\/$/, '') || '';

        // Get brand name from the ContentWrapper div to avoid placeholder letter duplication
        const contentWrapper = link.querySelector('[class*="ContentWrapper"]');
        const name = contentWrapper?.textContent?.trim() || link.textContent?.trim() || slug;

        return {
          slug,
          name,
          url: href.startsWith('http') ? href : href
        };
      });

      // Filter out duplicates and invalid entries
      const seen = new Set();
      const unique = extracted.filter(b => {
        if (!b.slug || !b.name || seen.has(b.slug)) return false;
        seen.add(b.slug);
        return true;
      });

      return unique;
    });

    console.log(`✅ Found ${brands.length} total brands`);
    return brands;

  } catch (error: any) {
    console.error(`❌ Error scraping brands list:`, error.message);
    return [];
  }
}

async function main() {
  console.log(`\n${'='.repeat(60)}`);
  console.log(`🏭 POPULATING JOB QUEUE`);
  console.log(`   Dispensary ID: ${dispensaryId}`);
  console.log(`${'='.repeat(60)}\n`);

  // Get dispensary info
  const dispensaryResult = await pool.query(
    "SELECT id, name, menu_url FROM dispensaries WHERE id = $1",
    [dispensaryId]
  );

  if (dispensaryResult.rows.length === 0) {
    console.error(`❌ Dispensary ID ${dispensaryId} not found`);
    process.exit(1);
  }

  const menuUrl = dispensaryResult.rows[0].menu_url;
  console.log(`✅ Dispensary: ${dispensaryResult.rows[0].name}`);
  console.log(`   Menu URL: ${menuUrl}\n`);

  // Get proxy
  const proxy = await getRandomProxy();
  if (!proxy) {
    console.log(`❌ No proxy available`);
    process.exit(1);
  }

  console.log(`🔐 Using proxy: ${proxy.server}\n`);

  // Launch browser
  const browser = await firefox.launch({ headless: true });

  const context = await browser.newContext({
    viewport: { width: 1920, height: 1080 },
    userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36',
    proxy: {
      server: proxy.server,
      username: proxy.username,
      password: proxy.password
    }
  });

  const page = await context.newPage();

  // Get all brands
  const allBrands = await scrapeBrandsList(menuUrl, context, page);

  if (allBrands.length === 0) {
    console.log(`❌ No brands found`);
    await browser.close();
    process.exit(1);
  }

  console.log(`\n📋 Found ${allBrands.length} brands. Populating job queue...\n`);

  // Insert jobs into database
  let inserted = 0;
  let skipped = 0;

  for (const brand of allBrands) {
    try {
      await pool.query(`
        INSERT INTO brand_scrape_jobs (dispensary_id, brand_slug, brand_name, status)
        VALUES ($1, $2, $3, 'pending')
        ON CONFLICT (dispensary_id, brand_slug) DO NOTHING
      `, [dispensaryId, brand.slug, brand.name]);

      const result = await pool.query(
        'SELECT id FROM brand_scrape_jobs WHERE dispensary_id = $1 AND brand_slug = $2',
        [dispensaryId, brand.slug]
      );

      if (result.rows.length > 0) {
        inserted++;
        if (inserted % 10 === 0) {
          console.log(`   Inserted ${inserted}/${allBrands.length} jobs...`);
        }
      } else {
        skipped++;
      }
    } catch (error: any) {
      console.error(`❌ Error inserting job for ${brand.name}:`, error.message);
    }
  }

  console.log(`\n${'='.repeat(60)}`);
  console.log(`✅ JOB QUEUE POPULATED`);
  console.log(`   Total brands: ${allBrands.length}`);
  console.log(`   Jobs inserted: ${inserted}`);
  console.log(`   Jobs skipped (already exist): ${skipped}`);
  console.log(`${'='.repeat(60)}\n`);

  await browser.close();
  await pool.end();
}

main().catch(console.error);