#!/usr/bin/env npx tsx
/**
 * Incremental CLI - Ongoing data hydration
 *
 * Usage:
 *   npx tsx src/canonical-hydration/cli/incremental.ts [options]
 *
 * Options:
 *   --dispensary-id <id>  Hydrate only a specific dispensary
 *   --batch-size <n>      Number of jobs to process per batch (default: 100)
 *   --loop                Run continuously in a loop
 *   --interval <seconds>  Interval between loops (default: 60)
 *   --dry-run             Show what would be done without making changes
 *
 * Examples:
 *   npx tsx src/canonical-hydration/cli/incremental.ts
 *   npx tsx src/canonical-hydration/cli/incremental.ts --dispensary-id 112
 *   npx tsx src/canonical-hydration/cli/incremental.ts --loop --interval 300
 *   npx tsx src/canonical-hydration/cli/incremental.ts --dry-run
 */

import { Pool } from 'pg';
import { CanonicalHydrationService } from '../hydration-service';
import { HydrationOptions } from '../types';

async function main() {
  const args = process.argv.slice(2);

  // Parse command line arguments
  const options: HydrationOptions = {
    mode: 'incremental',
  };
  let loop = false;
  let intervalSeconds = 60;

  for (let i = 0; i < args.length; i++) {
    const arg = args[i];
    switch (arg) {
      case '--dispensary-id':
        options.dispensaryId = parseInt(args[++i]);
        break;
      case '--batch-size':
        options.batchSize = parseInt(args[++i]);
        break;
      case '--loop':
        loop = true;
        break;
      case '--interval':
        intervalSeconds = parseInt(args[++i]);
        break;
      case '--dry-run':
        options.dryRun = true;
        break;
      case '--help':
        console.log(`
Incremental CLI - Ongoing data hydration

Usage:
  npx tsx src/canonical-hydration/cli/incremental.ts [options]

Options:
  --dispensary-id <id>  Hydrate only a specific dispensary
  --batch-size <n>      Number of jobs to process per batch (default: 100)
  --loop                Run continuously in a loop
  --interval <seconds>  Interval between loops (default: 60)
  --dry-run             Show what would be done without making changes

Examples:
  npx tsx src/canonical-hydration/cli/incremental.ts
  npx tsx src/canonical-hydration/cli/incremental.ts --dispensary-id 112
  npx tsx src/canonical-hydration/cli/incremental.ts --loop --interval 300
  npx tsx src/canonical-hydration/cli/incremental.ts --dry-run
        `);
        process.exit(0);
    }
  }

  // Connect to database
  const pool = new Pool({
    connectionString: process.env.DATABASE_URL,
  });

  const service = new CanonicalHydrationService({
    pool,
    logger: (msg) => console.log(`[${new Date().toISOString()}] ${msg}`),
  });

  const log = (msg: string) => console.log(`[${new Date().toISOString()}] ${msg}`);

  // Graceful shutdown
  let running = true;
  process.on('SIGINT', () => {
    log('Received SIGINT, shutting down...');
    running = false;
  });
  process.on('SIGTERM', () => {
    log('Received SIGTERM, shutting down...');
    running = false;
  });

  try {
    console.log('\n' + '═'.repeat(60));
    console.log('  CANONICAL HYDRATION - INCREMENTAL MODE');
    console.log('═'.repeat(60));
    console.log(`  Dispensary ID: ${options.dispensaryId || 'ALL'}`);
    console.log(`  Batch Size:    ${options.batchSize || 100}`);
    console.log(`  Loop Mode:     ${loop ? 'YES' : 'NO'}`);
    if (loop) {
      console.log(`  Interval:      ${intervalSeconds}s`);
    }
    console.log(`  Dry Run:       ${options.dryRun ? 'YES' : 'NO'}`);
    console.log('═'.repeat(60) + '\n');

    do {
      const result = await service.hydrate(options);

      log(`Hydration complete: ${result.crawlRunsCreated} runs, ${result.productsUpserted} products, ${result.snapshotsWritten} snapshots (${result.durationMs}ms)`);

      if (result.errors.length > 0) {
        log(`Errors: ${result.errors.length}`);
        for (const error of result.errors.slice(0, 5)) {
          log(`  - ${error}`);
        }
      }

      if (loop && running) {
        log(`Sleeping for ${intervalSeconds}s...`);
        await new Promise(resolve => setTimeout(resolve, intervalSeconds * 1000));
      }
    } while (loop && running);

    log('Incremental hydration completed');
    process.exit(0);
  } catch (error: any) {
    console.error('Fatal error:', error.message);
    process.exit(1);
  } finally {
    await pool.end();
  }
}

main();