// utils/notifications.ts
import * as Device from 'expo-device';
import * as Notifications from 'expo-notifications';
import Constants from 'expo-constants';

Notifications.setNotificationHandler({
  handleNotification: async () => ({
    shouldShowAlert: true,
    shouldPlaySound: true,
    shouldSetBadge: false,
    shouldShowBanner: true,
    shouldShowList: true,
  }),
});

export async function registerForPushNotificationsAsync() {
  if (!Device.isDevice) {
    console.warn("Push notifications don't work on simulator");
    return null;
  }

  const { status: existingStatus } = await Notifications.getPermissionsAsync();
  let finalStatus = existingStatus;

  if (existingStatus !== 'granted') {
    const { status } = await Notifications.requestPermissionsAsync();
    finalStatus = status;
  }

  if (finalStatus !== 'granted') {
    console.warn('Permission not granted for push notifications');
    return null;
  }

  const projectId = Constants?.expoConfig?.extra?.eas?.projectId;
  const token = (await Notifications.getExpoPushTokenAsync({
    projectId,
  })).data;

  console.log("Expo Push Token:", token);
  return token;
}