#!/usr/bin/env node

/**
 * Drift Order Cleanup Daemon
 * Runs the cleanup service in the background
 */

const { driftOrderCleanupService } = require('./lib/drift-order-cleanup-service.js')

let isShuttingDown = false

async function startDaemon() {
  console.log('🚀 Starting Drift Order Cleanup Daemon...')
  console.log('==========================================')
  
  // Start the cleanup service
  driftOrderCleanupService.start(60000) // Check every 60 seconds
  
  console.log('✅ Daemon started successfully!')
  console.log('📊 Monitoring for orphaned orders every 60 seconds')
  console.log('🛑 Press Ctrl+C to stop')
  console.log('')

  // Set up graceful shutdown
  process.on('SIGINT', gracefulShutdown)
  process.on('SIGTERM', gracefulShutdown)
  process.on('SIGQUIT', gracefulShutdown)

  // Keep the process running
  const keepAlive = setInterval(() => {
    if (!isShuttingDown) {
      const status = driftOrderCleanupService.getStatus()
      const timestamp = new Date().toISOString()
      console.log(`[${timestamp}] 💓 Daemon running - Last cleanup: ${status.lastCleanupTime ? `${Math.floor((Date.now() - status.lastCleanupTime) / 1000)}s ago` : 'Never'}`)
    }
  }, 300000) // Log status every 5 minutes

  // Cleanup on exit
  process.on('exit', () => {
    clearInterval(keepAlive)
  })
}

function gracefulShutdown(signal) {
  if (isShuttingDown) return
  
  isShuttingDown = true
  console.log(`\n🛑 Received ${signal}, shutting down gracefully...`)
  
  driftOrderCleanupService.stop()
  console.log('✅ Drift order cleanup daemon stopped')
  
  process.exit(0)
}

// Error handling
process.on('uncaughtException', (error) => {
  console.error('❌ Uncaught exception:', error)
  gracefulShutdown('UNCAUGHT_EXCEPTION')
})

process.on('unhandledRejection', (reason, promise) => {
  console.error('❌ Unhandled rejection at:', promise, 'reason:', reason)
})

// Start the daemon
if (require.main === module) {
  startDaemon().catch(error => {
    console.error('❌ Failed to start daemon:', error)
    process.exit(1)
  })
}

module.exports = { startDaemon }