#!/usr/bin/env npx tsx
/**
 * Queue Intelligence Script
 *
 * Orchestrates the multi-category intelligence crawler system:
 * 1. Queue dispensaries that need provider detection (all 4 categories)
 * 2. Queue per-category production crawls (Dutchie products only for now)
 * 3. Queue per-category sandbox crawls (all providers)
 *
 * Each category (product, specials, brand, metadata) is handled independently.
 * A failure in one category does NOT affect other categories.
 *
 * Usage:
 *   npx tsx src/scripts/queue-intelligence.ts [--detection] [--production] [--sandbox] [--all]
 *   npx tsx src/scripts/queue-intelligence.ts --category=product --sandbox
 *   npx tsx src/scripts/queue-intelligence.ts --process --category=product
 *   npx tsx src/scripts/queue-intelligence.ts --dry-run
 */

import { pool } from '../db/pool';
import { logger } from '../services/logger';
import {
  detectMultiCategoryProviders,
  updateAllCategoryProviders,
  IntelligenceCategory,
} from '../services/intelligence-detector';
import {
  runCrawlProductsJob,
  runCrawlSpecialsJob,
  runCrawlBrandIntelligenceJob,
  runCrawlMetadataJob,
  runSandboxProductsJob,
  runSandboxSpecialsJob,
  runSandboxBrandJob,
  runSandboxMetadataJob,
  runAllCategoryProductionCrawls,
  runAllCategorySandboxCrawls,
  processCategorySandboxJobs,
} from '../services/category-crawler-jobs';

// Parse command line args
const args = process.argv.slice(2);
const flags = {
  detection: args.includes('--detection') || args.includes('--all'),
  production: args.includes('--production') || args.includes('--all'),
  sandbox: args.includes('--sandbox') || args.includes('--all'),
  dryRun: args.includes('--dry-run'),
  process: args.includes('--process'),
  help: args.includes('--help') || args.includes('-h'),
  limit: parseInt(args.find(a => a.startsWith('--limit='))?.split('=')[1] || '10'),
  category: args.find(a => a.startsWith('--category='))?.split('=')[1] as IntelligenceCategory | undefined,
  dispensary: parseInt(args.find(a => a.startsWith('--dispensary='))?.split('=')[1] || '0'),
};

// If no specific flags, default to all
if (!flags.detection && !flags.production && !flags.sandbox && !flags.process) {
  flags.detection = true;
  flags.production = true;
  flags.sandbox = true;
}

const CATEGORIES: IntelligenceCategory[] = ['product', 'specials', 'brand', 'metadata'];

async function showHelp() {
  console.log(`
Queue Intelligence - Multi-Category Crawler Orchestration

USAGE:
  npx tsx src/scripts/queue-intelligence.ts [OPTIONS]

OPTIONS:
  --detection          Queue dispensaries that need multi-category detection
  --production         Queue per-category production crawls
  --sandbox            Queue per-category sandbox crawls
  --all                Queue all job types (default if no specific flag)
  --process            Process queued jobs instead of just queuing
  --category=CATEGORY  Filter to specific category (product|specials|brand|metadata)
  --dispensary=ID      Process only a specific dispensary
  --dry-run            Show what would be queued without making changes
  --limit=N            Maximum dispensaries to queue per type (default: 10)
  --help, -h           Show this help message

CATEGORIES:
  product   - Product/menu data (Dutchie=production, others=sandbox)
  specials  - Deals and specials (all sandbox for now)
  brand     - Brand intelligence (all sandbox for now)
  metadata  - Categories/taxonomy (all sandbox for now)

EXAMPLES:
  # Queue all dispensaries for appropriate jobs
  npx tsx src/scripts/queue-intelligence.ts

  # Only queue product detection jobs
  npx tsx src/scripts/queue-intelligence.ts --detection --category=product

  # Process sandbox jobs for specials category
  npx tsx src/scripts/queue-intelligence.ts --process --category=specials --limit=5

  # Run full detection for a specific dispensary
  npx tsx src/scripts/queue-intelligence.ts --process --detection --dispensary=123

  # Dry run to see what would be queued
  npx tsx src/scripts/queue-intelligence.ts --dry-run
`);
}

async function queueMultiCategoryDetection(): Promise<number> {
  console.log('\n📡 Queueing Multi-Category Detection Jobs...');

  // Find dispensaries that need provider detection for any category:
  // - Any *_provider is null OR
  // - Any *_confidence < 70
  // - has a website URL
  const query = `
    SELECT id, name, website, menu_url,
           product_provider, product_confidence, product_crawler_mode,
           specials_provider, specials_confidence, specials_crawler_mode,
           brand_provider, brand_confidence, brand_crawler_mode,
           metadata_provider, metadata_confidence, metadata_crawler_mode
    FROM dispensaries
    WHERE (website IS NOT NULL OR menu_url IS NOT NULL)
      AND (
        product_provider IS NULL OR product_confidence < 70 OR
        specials_provider IS NULL OR specials_confidence < 70 OR
        brand_provider IS NULL OR brand_confidence < 70 OR
        metadata_provider IS NULL OR metadata_confidence < 70
      )
    ORDER BY
      CASE WHEN product_provider IS NULL THEN 0 ELSE 1 END,
      product_confidence ASC
    LIMIT $1
  `;

  const result = await pool.query(query, [flags.limit]);

  if (flags.dryRun) {
    console.log(`  Would queue ${result.rows.length} dispensaries for multi-category detection:`);
    for (const row of result.rows) {
      const needsDetection: string[] = [];
      if (!row.product_provider || row.product_confidence < 70) needsDetection.push('product');
      if (!row.specials_provider || row.specials_confidence < 70) needsDetection.push('specials');
      if (!row.brand_provider || row.brand_confidence < 70) needsDetection.push('brand');
      if (!row.metadata_provider || row.metadata_confidence < 70) needsDetection.push('metadata');
      console.log(`    - [${row.id}] ${row.name} (needs: ${needsDetection.join(', ')})`);
    }
    return result.rows.length;
  }

  let queued = 0;
  for (const dispensary of result.rows) {
    try {
      // Create detection jobs for each category that needs it
      for (const category of CATEGORIES) {
        const provider = dispensary[`${category}_provider`];
        const confidence = dispensary[`${category}_confidence`];

        if (!provider || confidence < 70) {
          await pool.query(
            `INSERT INTO sandbox_crawl_jobs (dispensary_id, category, job_type, status, priority)
             VALUES ($1, $2, 'detection', 'pending', 10)
             ON CONFLICT DO NOTHING`,
            [dispensary.id, category]
          );
        }
      }

      console.log(`  ✓ Queued detection: [${dispensary.id}] ${dispensary.name}`);
      queued++;
    } catch (error: any) {
      console.error(`  ✗ Failed to queue [${dispensary.id}]: ${error.message}`);
    }
  }

  return queued;
}

async function queueCategoryProductionCrawls(category?: IntelligenceCategory): Promise<number> {
  const categories = category ? [category] : CATEGORIES;
  let totalQueued = 0;

  for (const cat of categories) {
    console.log(`\n🏭 Queueing Production ${cat.toUpperCase()} Crawls...`);

    // For now, only products have production-ready crawlers (Dutchie only)
    if (cat !== 'product') {
      console.log(`  ⏭️  No production crawler for ${cat} yet - skipping`);
      continue;
    }

    // Find dispensaries ready for production crawl
    const query = `
      SELECT id, name, ${cat}_provider as provider, last_${cat}_scan_at as last_scan
      FROM dispensaries
      WHERE ${cat}_provider = 'dutchie'
        AND ${cat}_crawler_mode = 'production'
        AND ${cat}_confidence >= 70
        AND (last_${cat}_scan_at IS NULL OR last_${cat}_scan_at < NOW() - INTERVAL '4 hours')
      ORDER BY
        CASE WHEN last_${cat}_scan_at IS NULL THEN 0 ELSE 1 END,
        last_${cat}_scan_at ASC
      LIMIT $1
    `;

    const result = await pool.query(query, [flags.limit]);

    if (flags.dryRun) {
      console.log(`  Would queue ${result.rows.length} dispensaries for ${cat} production crawl:`);
      for (const row of result.rows) {
        const lastScan = row.last_scan ? new Date(row.last_scan).toISOString() : 'never';
        console.log(`    - [${row.id}] ${row.name} (provider: ${row.provider}, last: ${lastScan})`);
      }
      totalQueued += result.rows.length;
      continue;
    }

    for (const dispensary of result.rows) {
      try {
        // For products, use the existing crawl_jobs table for production
        await pool.query(
          `INSERT INTO crawl_jobs (store_id, job_type, trigger_type, status, priority, metadata)
           SELECT s.id, 'full_crawl', 'scheduled', 'pending', 50,
                  jsonb_build_object('dispensary_id', $1, 'category', $2, 'source', 'queue-intelligence')
           FROM stores s
           JOIN dispensaries d ON (d.menu_url = s.dutchie_url OR d.name ILIKE '%' || s.name || '%')
           WHERE d.id = $1
           LIMIT 1`,
          [dispensary.id, cat]
        );

        console.log(`  ✓ Queued ${cat} production: [${dispensary.id}] ${dispensary.name}`);
        totalQueued++;
      } catch (error: any) {
        console.error(`  ✗ Failed to queue [${dispensary.id}]: ${error.message}`);
      }
    }
  }

  return totalQueued;
}

async function queueCategorySandboxCrawls(category?: IntelligenceCategory): Promise<number> {
  const categories = category ? [category] : CATEGORIES;
  let totalQueued = 0;

  for (const cat of categories) {
    console.log(`\n🧪 Queueing Sandbox ${cat.toUpperCase()} Crawls...`);

    // Find dispensaries in sandbox mode for this category
    const query = `
      SELECT d.id, d.name, d.${cat}_provider as provider, d.${cat}_confidence as confidence,
             d.website, d.menu_url
      FROM dispensaries d
      WHERE d.${cat}_crawler_mode = 'sandbox'
        AND d.${cat}_provider IS NOT NULL
        AND (d.website IS NOT NULL OR d.menu_url IS NOT NULL)
        AND NOT EXISTS (
          SELECT 1 FROM sandbox_crawl_jobs sj
          WHERE sj.dispensary_id = d.id
            AND sj.category = $1
            AND sj.status IN ('pending', 'running')
        )
      ORDER BY d.${cat}_confidence DESC, d.updated_at ASC
      LIMIT $2
    `;

    const result = await pool.query(query, [cat, flags.limit]);

    if (flags.dryRun) {
      console.log(`  Would queue ${result.rows.length} dispensaries for ${cat} sandbox crawl:`);
      for (const row of result.rows) {
        console.log(`    - [${row.id}] ${row.name} (provider: ${row.provider}, confidence: ${row.confidence}%)`);
      }
      totalQueued += result.rows.length;
      continue;
    }

    for (const dispensary of result.rows) {
      try {
        // Create sandbox entry if needed
        const sandboxResult = await pool.query(
          `INSERT INTO crawler_sandboxes (dispensary_id, category, suspected_menu_provider, mode, status)
           VALUES ($1, $2, $3, 'template_learning', 'pending')
           ON CONFLICT (dispensary_id, category) WHERE status NOT IN ('moved_to_production', 'failed')
           DO UPDATE SET updated_at = NOW()
           RETURNING id`,
          [dispensary.id, cat, dispensary.provider]
        );

        const sandboxId = sandboxResult.rows[0]?.id;

        // Create sandbox job
        await pool.query(
          `INSERT INTO sandbox_crawl_jobs (dispensary_id, sandbox_id, category, job_type, status, priority)
           VALUES ($1, $2, $3, 'crawl', 'pending', 5)`,
          [dispensary.id, sandboxId, cat]
        );

        console.log(`  ✓ Queued ${cat} sandbox: [${dispensary.id}] ${dispensary.name} (${dispensary.provider})`);
        totalQueued++;
      } catch (error: any) {
        console.error(`  ✗ Failed to queue [${dispensary.id}]: ${error.message}`);
      }
    }
  }

  return totalQueued;
}

async function processDetectionJobs(): Promise<void> {
  console.log('\n🔍 Processing Detection Jobs...');

  // Get pending detection jobs
  const jobs = await pool.query(
    `SELECT DISTINCT dispensary_id
     FROM sandbox_crawl_jobs
     WHERE job_type = 'detection' AND status = 'pending'
     ${flags.category ? `AND category = $2` : ''}
     ${flags.dispensary ? `AND dispensary_id = $${flags.category ? '3' : '2'}` : ''}
     LIMIT $1`,
    flags.category
      ? (flags.dispensary ? [flags.limit, flags.category, flags.dispensary] : [flags.limit, flags.category])
      : (flags.dispensary ? [flags.limit, flags.dispensary] : [flags.limit])
  );

  for (const job of jobs.rows) {
    console.log(`\nProcessing detection for dispensary ${job.dispensary_id}...`);

    try {
      // Get dispensary info
      const dispResult = await pool.query(
        'SELECT id, name, website, menu_url FROM dispensaries WHERE id = $1',
        [job.dispensary_id]
      );
      const dispensary = dispResult.rows[0];

      if (!dispensary) {
        console.log(`  ✗ Dispensary not found`);
        continue;
      }

      const websiteUrl = dispensary.website || dispensary.menu_url;
      if (!websiteUrl) {
        console.log(`  ✗ No website URL`);
        continue;
      }

      // Mark jobs as running
      await pool.query(
        `UPDATE sandbox_crawl_jobs SET status = 'running', started_at = NOW()
         WHERE dispensary_id = $1 AND job_type = 'detection' AND status = 'pending'`,
        [job.dispensary_id]
      );

      // Run multi-category detection
      console.log(`  Detecting providers for ${dispensary.name}...`);
      const detection = await detectMultiCategoryProviders(websiteUrl, { timeout: 45000 });

      // Update all categories
      await updateAllCategoryProviders(job.dispensary_id, detection);

      // Mark jobs as completed
      await pool.query(
        `UPDATE sandbox_crawl_jobs SET status = 'completed', completed_at = NOW(),
         result_summary = $1
         WHERE dispensary_id = $2 AND job_type = 'detection' AND status = 'running'`,
        [JSON.stringify({
          product: { provider: detection.product.provider, confidence: detection.product.confidence },
          specials: { provider: detection.specials.provider, confidence: detection.specials.confidence },
          brand: { provider: detection.brand.provider, confidence: detection.brand.confidence },
          metadata: { provider: detection.metadata.provider, confidence: detection.metadata.confidence },
        }), job.dispensary_id]
      );

      console.log(`  ✓ Detection complete:`);
      console.log(`    Product:  ${detection.product.provider} (${detection.product.confidence}%) -> ${detection.product.mode}`);
      console.log(`    Specials: ${detection.specials.provider} (${detection.specials.confidence}%) -> ${detection.specials.mode}`);
      console.log(`    Brand:    ${detection.brand.provider} (${detection.brand.confidence}%) -> ${detection.brand.mode}`);
      console.log(`    Metadata: ${detection.metadata.provider} (${detection.metadata.confidence}%) -> ${detection.metadata.mode}`);

    } catch (error: any) {
      console.log(`  ✗ Error: ${error.message}`);
      await pool.query(
        `UPDATE sandbox_crawl_jobs SET status = 'failed', error_message = $1
         WHERE dispensary_id = $2 AND job_type = 'detection' AND status = 'running'`,
        [error.message, job.dispensary_id]
      );
    }
  }
}

async function processCrawlJobs(): Promise<void> {
  const categories = flags.category ? [flags.category] : CATEGORIES;

  for (const cat of categories) {
    console.log(`\n⚙️  Processing ${cat.toUpperCase()} Crawl Jobs...\n`);

    // Process sandbox jobs for this category
    if (flags.sandbox || !flags.production) {
      await processCategorySandboxJobs(cat, flags.limit);
    }

    // Process production jobs for this category
    if (flags.production && cat === 'product') {
      // Get pending production crawls
      const prodJobs = await pool.query(
        `SELECT d.id
         FROM dispensaries d
         WHERE d.product_provider = 'dutchie'
           AND d.product_crawler_mode = 'production'
           AND d.product_confidence >= 70
         ${flags.dispensary ? 'AND d.id = $2' : ''}
         LIMIT $1`,
        flags.dispensary ? [flags.limit, flags.dispensary] : [flags.limit]
      );

      for (const job of prodJobs.rows) {
        console.log(`Processing production ${cat} crawl for dispensary ${job.id}...`);
        const result = await runCrawlProductsJob(job.id);
        console.log(`  ${result.success ? '✓' : '✗'} ${result.message}`);
      }
    }
  }
}

async function processSpecificDispensary(): Promise<void> {
  if (!flags.dispensary) return;

  console.log(`\n🎯 Processing Dispensary ${flags.dispensary}...\n`);

  const dispResult = await pool.query(
    'SELECT * FROM dispensaries WHERE id = $1',
    [flags.dispensary]
  );

  if (dispResult.rows.length === 0) {
    console.log('Dispensary not found');
    return;
  }

  const dispensary = dispResult.rows[0];
  console.log(`Name: ${dispensary.name}`);
  console.log(`Website: ${dispensary.website || dispensary.menu_url || 'none'}`);
  console.log('');

  if (flags.detection) {
    console.log('Running multi-category detection...');
    const websiteUrl = dispensary.website || dispensary.menu_url;
    if (websiteUrl) {
      const detection = await detectMultiCategoryProviders(websiteUrl);
      await updateAllCategoryProviders(flags.dispensary, detection);
      console.log('Detection results:');
      console.log(`  Product:  ${detection.product.provider} (${detection.product.confidence}%) -> ${detection.product.mode}`);
      console.log(`  Specials: ${detection.specials.provider} (${detection.specials.confidence}%) -> ${detection.specials.mode}`);
      console.log(`  Brand:    ${detection.brand.provider} (${detection.brand.confidence}%) -> ${detection.brand.mode}`);
      console.log(`  Metadata: ${detection.metadata.provider} (${detection.metadata.confidence}%) -> ${detection.metadata.mode}`);
    }
  }

  if (flags.production) {
    console.log('\nRunning production crawls...');
    const results = await runAllCategoryProductionCrawls(flags.dispensary);
    console.log(`  ${results.summary}`);
  }

  if (flags.sandbox) {
    console.log('\nRunning sandbox crawls...');
    const results = await runAllCategorySandboxCrawls(flags.dispensary);
    console.log(`  ${results.summary}`);
  }
}

async function showStats(): Promise<void> {
  console.log('\n📊 Multi-Category Intelligence Stats:');

  // Per-category stats
  for (const cat of CATEGORIES) {
    const stats = await pool.query(`
      SELECT
        COUNT(*) as total,
        COUNT(*) FILTER (WHERE ${cat}_provider IS NULL) as no_provider,
        COUNT(*) FILTER (WHERE ${cat}_provider = 'dutchie') as dutchie,
        COUNT(*) FILTER (WHERE ${cat}_provider = 'treez') as treez,
        COUNT(*) FILTER (WHERE ${cat}_provider NOT IN ('dutchie', 'treez', 'unknown') AND ${cat}_provider IS NOT NULL) as other,
        COUNT(*) FILTER (WHERE ${cat}_provider = 'unknown') as unknown,
        COUNT(*) FILTER (WHERE ${cat}_crawler_mode = 'production') as production,
        COUNT(*) FILTER (WHERE ${cat}_crawler_mode = 'sandbox') as sandbox,
        AVG(${cat}_confidence) as avg_confidence
      FROM dispensaries
    `);

    const s = stats.rows[0];
    console.log(`
  ${cat.toUpperCase()}:
    Providers: Dutchie=${s.dutchie}, Treez=${s.treez}, Other=${s.other}, Unknown=${s.unknown}, None=${s.no_provider}
    Modes: Production=${s.production}, Sandbox=${s.sandbox}
    Avg Confidence: ${Math.round(s.avg_confidence || 0)}%`);
  }

  // Job stats per category
  console.log('\n  Sandbox Jobs by Category:');
  const jobStats = await pool.query(`
    SELECT
      category,
      COUNT(*) FILTER (WHERE status = 'pending') as pending,
      COUNT(*) FILTER (WHERE status = 'running') as running,
      COUNT(*) FILTER (WHERE status = 'completed') as completed,
      COUNT(*) FILTER (WHERE status = 'failed') as failed
    FROM sandbox_crawl_jobs
    GROUP BY category
    ORDER BY category
  `);

  for (const row of jobStats.rows) {
    console.log(`    ${row.category}: pending=${row.pending}, running=${row.running}, completed=${row.completed}, failed=${row.failed}`);
  }
}

async function main() {
  if (flags.help) {
    await showHelp();
    process.exit(0);
  }

  console.log('═══════════════════════════════════════════════════════');
  console.log('       Multi-Category Intelligence Queue Manager');
  console.log('═══════════════════════════════════════════════════════');

  if (flags.dryRun) {
    console.log('\n🔍 DRY RUN MODE - No changes will be made\n');
  }

  if (flags.category) {
    console.log(`\n📌 Filtering to category: ${flags.category}\n`);
  }

  try {
    // Show current stats first
    await showStats();

    // If specific dispensary specified, process it directly
    if (flags.dispensary && flags.process) {
      await processSpecificDispensary();
    } else if (flags.process) {
      // Process mode - run jobs
      if (flags.detection) {
        await processDetectionJobs();
      }
      await processCrawlJobs();
    } else {
      // Queuing mode
      let totalQueued = 0;

      if (flags.detection) {
        totalQueued += await queueMultiCategoryDetection();
      }

      if (flags.production) {
        totalQueued += await queueCategoryProductionCrawls(flags.category);
      }

      if (flags.sandbox) {
        totalQueued += await queueCategorySandboxCrawls(flags.category);
      }

      console.log('\n═══════════════════════════════════════════════════════');
      console.log(`  Total queued: ${totalQueued}`);
      console.log('═══════════════════════════════════════════════════════\n');
    }

    // Show updated stats
    if (!flags.dryRun) {
      await showStats();
    }

  } catch (error) {
    console.error('Fatal error:', error);
    process.exit(1);
  } finally {
    await pool.end();
  }
}

main();