import {EmitterSubscription, NativeEventEmitter, NativeModules} from 'react-native'
import {NativePrinter} from '../native'
import {DiscoveryEventData, DiscoveryEventType, ScanResult} from './types'

// For events only - will be refactored later
const eventEmitter = new NativeEventEmitter(NativeModules.RNThermalPrinter)

/**
 * Scan for Bluetooth devices (compatible with react-native-bluetooth-escpos-printer)
 * Just call native method and let native handle the events
 */
export async function scanDevices(): Promise<ScanResult> {
  // Simply call native and return the result
  // Native will emit events that users can listen to
  return NativePrinter.scanBluetoothDevices()
}

/**
 * Stop scanning for Bluetooth devices
 */
export async function stopScanDevices(): Promise<boolean> {
  return NativePrinter.stopScanDevices()
}

/**
 * Add event listener for Bluetooth events with type safety
 */
export function addDiscoveryEventListener<T extends DiscoveryEventType>(
  event: T,
  listener: (data: DiscoveryEventData[T]) => void,
): EmitterSubscription {
  return eventEmitter.addListener(event, listener)
}

/**
 * Remove event listener
 */
export function removeDiscoveryEventListener(subscription: EmitterSubscription): void {
  subscription.remove()
}