import { initializeBatchCache, processItems, QueueManager } from '@stock-bot/queue';

async function basicUsageExample() {
  console.log('=== Basic Queue Usage Example ===');

  // 1. Initialize queue manager
  const queueManager = new QueueManager({
    queueName: 'example-queue',
    workers: 3,
    concurrency: 10,
    redis: {
      host: 'localhost',
      port: 6379,
    },
  });

  // 2. Register providers
  queueManager.registerProvider('market-data', {
    'fetch-price': async payload => {
      // payload is now the raw symbol string
      console.log(`Fetching price for ${payload}`);
      // Simulate API call
      await new Promise(resolve => setTimeout(resolve, 100));
      return {
        symbol: payload,
        price: Math.random() * 1000,
        timestamp: new Date().toISOString(),
      };
    },

    'update-cache': async payload => {
      // payload is now the raw symbol string
      console.log(`Updating cache for ${payload}`);
      // Simulate cache update
      await new Promise(resolve => setTimeout(resolve, 50));
      return { success: true, symbol: payload };
    },
  });

  // 3. Initialize
  await queueManager.initialize();
  await initializeBatchCache(queueManager);

  // 4. Add individual jobs
  console.log('Adding individual jobs...');
  await queueManager.add('fetch-price', {
    provider: 'market-data',
    operation: 'fetch-price',
    payload: 'AAPL', // Direct symbol instead of wrapped object
  });

  // 5. Process items in batch
  console.log('Processing items in batch...');
  const symbols = ['GOOGL', 'MSFT', 'TSLA', 'AMZN'];

  const result = await processItems(symbols, queueManager, {
    totalDelayHours: 0.0083, // 30 seconds
    useBatching: true,
    batchSize: 2,
    priority: 1,
    provider: 'market-data',
    operation: 'fetch-price',
  });

  console.log('Batch processing result:', result);

  // 6. Get queue statistics
  const stats = await queueManager.getStats();
  console.log('Queue stats:', stats);

  // 7. Clean up old jobs
  await queueManager.clean(60000); // Clean jobs older than 1 minute

  // 8. Shutdown gracefully
  setTimeout(async () => {
    console.log('Shutting down...');
    await queueManager.shutdown();
    console.log('Shutdown complete');
  }, 35000);
}

// Run the example
if (require.main === module) {
  basicUsageExample().catch(console.error);
}

export { basicUsageExample };