import 'dart:io';
import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:device_info_plus/device_info_plus.dart';

class PermissionGroupModel {
  final String titleKey;
  final IconData icon;
  final List<Permission> permissions;

  const PermissionGroupModel({
    required this.titleKey,
    required this.icon,
    required this.permissions,
  });
}

class PermissionGroup {
  /// 获取蓝牙权限列表（根据平台和Android版本）
  static Future<List<Permission>> _getBluetoothPermissions() async {
    if (Platform.isAndroid) {
      try {
        final deviceInfo = DeviceInfoPlugin();
        final androidInfo = await deviceInfo.androidInfo;
        // Android 12+ (API 31+) 使用新的蓝牙权限
        if (androidInfo.version.sdkInt >= 31) {
          return [
            Permission.bluetoothScan,
            Permission.bluetoothConnect,
          ];
        }
        // Android 12以下不显示蓝牙权限（因为会自动授予）
        return [];
      } catch (e) {
        print('获取Android版本信息失败: $e');
        return [];
      }
    } 
    return [];
  }

  /// 获取平台特定的权限组列表（异步方法）
  static Future<List<PermissionGroupModel>> getPlatformGroups() async {
    // 动态获取蓝牙权限列表
    final bluetoothPermissions = await _getBluetoothPermissions();

    return [
      // 通讯权限组 - 仅Android（包含联系人权限）
      const PermissionGroupModel(
        titleKey: 'communicationPermissions',
        icon: Icons.phone_android,
        permissions: [Permission.phone, Permission.sms, Permission.contacts],
      ),
      // 蓝牙权限组 - 根据平台动态获取权限
      PermissionGroupModel(
        titleKey: 'bluetoothPermissions',
        icon: Icons.bluetooth,
        permissions: bluetoothPermissions,
      ),
      // 通知权限组
      const PermissionGroupModel(
        titleKey: 'notificationPermissions',
        icon: Icons.notifications,
        permissions: [Permission.notification],
      ),
      // 闹钟权限组 - 仅Android
      const PermissionGroupModel(
        titleKey: 'alarmPermissions',
        icon: Icons.alarm,
        permissions: [Permission.scheduleExactAlarm],
      ),
      // 日历权限组
      const PermissionGroupModel(
        titleKey: 'calendarPermissions',
        icon: Icons.calendar_today,
        permissions: [Permission.calendarFullAccess],
      ),
      // 位置权限组
      const PermissionGroupModel(
        titleKey: 'locationPermissions',
        icon: Icons.location_on,
        permissions: [Permission.location],
      ),
      // 存储权限组
      const PermissionGroupModel(
        titleKey: 'storagePermissions',
        icon: Icons.storage,
        permissions: [Permission.storage],
      ),
      // 麦克风权限组
      const PermissionGroupModel(
        titleKey: 'microphonePermissions',
        icon: Icons.mic,
        permissions: [Permission.microphone],
      ),
    ];
  }
}