// packages
import { BackHandler, Alert } from "react-native";
/**
 * Attaches an event listener that handles the android-only hardware
 * back button
 * @param  {Function} callback The function to call on click
 */
const handleAndroidBackButton = (callback) => {
  BackHandler.addEventListener("hardwareBackPress", () => {
    callback();
    return true;
  });
};
/**
 * Removes the event listener in order not to add a new one
 * every time the view component re-mounts
 */
const removeAndroidBackButtonHandler = () => {
  // BackHandler.removeEventListener('hardwareBackPress')
  BackHandler.remove("hardwareBackPress");
};
const exitAlert = () => {
  Alert.alert("Confirm exit", "Do you want to quit the app?", [
    { text: "CANCEL", style: "cancel" },
    {
      text: "OK",
      onPress: () => {
        BackHandler.exitApp();
      },
    },
  ]);
  return true;
};

export { handleAndroidBackButton, removeAndroidBackButtonHandler, exitAlert };