import 'dart:ffi';

import 'package:permission_handler/permission_handler.dart';
import 'dart:io';

import '../device_info.dart';

class AndroidPermissionHandler {
  Future<void> requestAllPermissions() async {
    await requestLocationPermission();
    await requestBluetoothPermission();
    await requestCameraPermission();
    await requestStoragePermission();
    await requestNotificationPermission();
    await requestPhonePermission();
  }

  Future<void> requestLocationPermission() async {
    PermissionStatus status;
    if (Platform.isAndroid && await DeviceInfo.getAndroidSdkVersion() >= 29) {
      status = await Permission.locationAlways.request();
    } else {
      status = await Permission.locationWhenInUse.request();
    }

    if (status.isGranted) {
      print("Android: 位置权限已授予");
    } else if (status.isPermanentlyDenied) {
      print("Android: 位置权限被永久拒绝，请前往设置开启");
    } else {
      print("Android: 位置权限被拒绝");
    }
  }

  Future<void> requestBluetoothPermission() async {
    PermissionStatus status;
    if (Platform.isAndroid && await DeviceInfo.getAndroidSdkVersion() >= 31) {
      status = (await [
        Permission.bluetoothScan,
        Permission.bluetoothConnect,
        Permission.bluetoothAdvertise,
      ].request()) as PermissionStatus;
    } else {
      status = await Permission.bluetooth.request();
    }

    if (status.isGranted) {
      print("Android: 蓝牙权限已授予");
    } else {
      print("Android: 蓝牙权限被拒绝");
    }
  }

  Future<void> requestCameraPermission() async {
    PermissionStatus status = await Permission.camera.request();
    if (status.isGranted) {
      print("Android: 相机权限已授予");
    } else if (status.isPermanentlyDenied) {
      print("Android: 相机权限被永久拒绝，请前往设置开启");
    } else {
      print("Android: 相机权限被拒绝");
    }
  }

  Future<void> requestStoragePermission() async {
    PermissionStatus status = await Permission.storage.request();
    if (status.isGranted) {
      print("Android: 存储权限已授予");
    } else if (status.isPermanentlyDenied) {
      print("Android: 存储权限被永久拒绝，请前往设置开启");
    } else {
      print("Android: 存储权限被拒绝");
    }
  }

  Future<void> requestNotificationPermission() async {
    if (Platform.isAndroid && await DeviceInfo.getAndroidSdkVersion() >= 33) {
      PermissionStatus status = await Permission.notification.request();
      if (status.isGranted) {
        print("Android: 通知权限已授予");
      } else {
        print("Android: 通知权限被拒绝");
      }
    }
  }

  Future<void> requestPhonePermission() async {
    PermissionStatus status = await Permission.phone.request();
    if (status.isGranted) {
      print("Android: 电话权限已授予");
    } else if (status.isPermanentlyDenied) {
      print("Android: 电话权限被永久拒绝，请前往设置开启");
    } else {
      print("Android: 电话权限被拒绝");
    }
  }
}