import 'dart:convert';

import 'package:client_proxy_framework/client_proxy_framework.dart';
import 'package:crypto/crypto.dart' show md5;
import 'package:device_info_plus/device_info_plus.dart';
import 'package:flutter/foundation.dart';

import '../user/user_state.dart';

class AppAuthCallbacks implements AuthServiceCallbacks {
  @override
  Future<String> getDeviceId() async {
    final deviceInfo = DeviceInfoPlugin();
    switch (defaultTargetPlatform) {
      case TargetPlatform.android:
        final android = await deviceInfo.androidInfo;
        return android.id;
      case TargetPlatform.iOS:
        final ios = await deviceInfo.iosInfo;
        return ios.identifierForVendor ?? 'ios-unknown';
      default:
        return 'device-${DateTime.now().millisecondsSinceEpoch}';
    }
  }

  @override
  String computeSign(String deviceId) {
    return md5.convert(utf8.encode(deviceId)).toString().toUpperCase();
  }

  @override
  void onLoginSuccess(FastLoginResponse data) {
    if (data.userId != null) UserState.setUserId(data.userId!);
    if (data.credits != null) UserState.setCredits(data.credits!);
    if (data.avatar != null) UserState.setAvatar(data.avatar!);
    if (data.userName != null) UserState.setUserName(data.userName!);
  }

  @override
  void onCommonInfoLoaded(CommonInfoResponse data) {
    if (data.credits != null) UserState.setCredits(data.credits!);
    if (data.avatar != null) UserState.setAvatar(data.avatar!);
    if (data.userName != null) UserState.setUserName(data.userName!);
  }

  @override
  void onLoginFailed(String msg) {
    debugPrint('[AuthService] Login failed: $msg');
  }
}

/// 应用侧登录封装；Adjust 归因桥已由框架 [FrameworkAuthService.init] 默认注册。
class AuthService {
  static final _authCallbacks = AppAuthCallbacks();

  static Future<void> init() async {
    FrameworkAuthService.init(_authCallbacks);
    await FrameworkAuthService.start();
  }

  static Future<void> get loginComplete => FrameworkAuthService.loginComplete;
}