import * as Network from 'expo-network';

import {
  type NetworkStatusResult,
  normalizeHostBridgeConnectionType,
} from '../../../packages/shared/src/contracts/hostBridge';

export function normalizeMobileNetworkStatus(
  state: Network.NetworkState,
): NetworkStatusResult {
  const nativeType = state.type;
  const connectionType = normalizeHostBridgeConnectionType(nativeType);

  return {
    isConnected:
      typeof state.isConnected === 'boolean'
        ? state.isConnected
        : connectionType !== 'none' && connectionType !== 'unknown',
    isInternetReachable:
      typeof state.isInternetReachable === 'boolean'
        ? state.isInternetReachable
        : null,
    connectionType,
    ...(nativeType ? { nativeType } : {}),
  };
}

export async function getMobileNetworkStatus() {
  return normalizeMobileNetworkStatus(await Network.getNetworkStateAsync());
}

export function subscribeMobileNetworkStatus(
  listener: (status: NetworkStatusResult) => void,
) {
  const subscription = Network.addNetworkStateListener((state) => {
    listener(normalizeMobileNetworkStatus(state));
  });

  return () => subscription.remove();
}