// Example usage of the @stock-bot/http-client library

import { BunHttpClient } from '../src';

async function main() {
  // Create a client instance
  const client = new BunHttpClient({
    baseURL: 'https://api.polygon.io',
    timeout: 10000,
    retries: 2,
    retryDelay: 500,
    headers: {
      'X-API-Key': process.env.POLYGON_API_KEY || 'demo'
    }
  });

  // Add event listeners for monitoring
  client.on('response', ({host, response}) => {
    console.log(`📦 Response from ${host}: ${response.status} (${response.timing.duration.toFixed(2)}ms)`);
  });

  client.on('error', ({host, error}) => {
    console.error(`❌ Error from ${host}: ${error.message}`);
  });

  client.on('retryAttempt', ({attempt, config, delay}) => {
    console.warn(`⚠️ Retry ${attempt}/${config.retries} for ${config.url} in ${delay}ms`);
  });

  try {
    console.log('Fetching market data...');
    
    // Make a GET request
    const tickerResponse = await client.get('/v3/reference/tickers', {
      headers: {
        'Accept': 'application/json'
      }
    });
    
    console.log(`Found ${tickerResponse.data.results.length} tickers`);
    console.log(`First ticker: ${JSON.stringify(tickerResponse.data.results[0], null, 2)}`);

    // Make a request that will fail
    try {
      await client.get('/non-existent-endpoint');
    } catch (error) {
      console.log('Expected error caught:', error.message);
    }

    // Multiple parallel requests
    console.log('Making parallel requests...');
    const [aaplData, msftData, amznData] = await Promise.all([
      client.get('/v2/aggs/ticker/AAPL/range/1/day/2023-01-01/2023-01-15'),
      client.get('/v2/aggs/ticker/MSFT/range/1/day/2023-01-01/2023-01-15'),
      client.get('/v2/aggs/ticker/AMZN/range/1/day/2023-01-01/2023-01-15')
    ]);
    
    console.log('Parallel requests completed:');
    console.log(`- AAPL: ${aaplData.status}, data points: ${aaplData.data.results?.length || 0}`);
    console.log(`- MSFT: ${msftData.status}, data points: ${msftData.data.results?.length || 0}`);
    console.log(`- AMZN: ${amznData.status}, data points: ${amznData.data.results?.length || 0}`);

    // Get client statistics
    const stats = client.getStats();
    console.log('\nClient Stats:');
    console.log(`- Active connections: ${stats.activeConnections}`);
    console.log(`- Total connections: ${stats.totalConnections}`);
    console.log(`- Successful requests: ${stats.successfulRequests}`);
    console.log(`- Failed requests: ${stats.failedRequests}`);
    console.log(`- Average response time: ${stats.averageResponseTime.toFixed(2)}ms`);
    console.log(`- Requests per second: ${stats.requestsPerSecond.toFixed(2)}`);

    // Health check
    const health = await client.healthCheck();
    console.log(`\nClient health: ${health.healthy ? 'HEALTHY' : 'DEGRADED'}`);
    console.log(`Health details: ${JSON.stringify(health.details, null, 2)}`);

  } catch (error) {
    console.error('Error in example:', error);
  } finally {
    // Always close the client when done to clean up resources
    await client.close();
    console.log('HTTP client closed');
  }
}

// Run the example
main().catch(err => {
  console.error('Example failed:', err);
  process.exit(1);
});