import UIKit
import Flutter

// Add these two import lines
import TIMPush
import tencent_cloud_chat_push

// Add `, TIMPushDelegate` to the following line
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate, TIMPushDelegate {
    override func application(
        _ application: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
    ) -> Bool {
        GeneratedPluginRegistrant.register(with: self)
        return super.application(application, didFinishLaunchingWithOptions: launchOptions)
    }

    // Add this function
    @objc func businessID() -> Int32 {
        return TencentCloudChatPushFlutterModal.shared.businessID();
    }

    // Add this function
    @objc func applicationGroupID() -> String {
        return TencentCloudChatPushFlutterModal.shared.applicationGroupID()
    }
    
    // Add this function
    @objc func onRemoteNotificationReceived(_ notice: String?) -> Bool {
        TencentCloudChatPushPlugin.shared.tryNotifyDartOnNotificationClickEvent(notice)
        return true
    }
}

Future<void> loginIMAndRegisterPush() async {
  final int sdkAppId = 0; // TODO: Replace with your SDKAppID.
  final String userID = '<#YOUR_USER_ID#>';
  final String userSig = '<#YOUR_USER_SIG#>';

  final initRes = await TencentImSDKPlugin.v2TIMManager.initSDK(
    sdkAppID: sdkAppId,
  );
  if (initRes.code != 0) {
    debugPrint('initSDK failed: code=${initRes.code}, desc=${initRes.desc}');
    return;
  }

  final loginRes = await TencentImSDKPlugin.v2TIMManager.login(
    userID: userID,
    userSig: userSig,
  );
  if (loginRes.code != 0) {
    debugPrint('login failed: code=${loginRes.code}, desc=${loginRes.desc}');
    return;
  }

  final push = TencentCloudChatPush();
  final registerRes = await push.registerPush(
    sdkAppId: sdkAppId,
    // iOS: Replace with the certificate ID generated in the Tencent Cloud console; not required on Android.
    apnsCertificateID: 0,
    // iOS optional: To measure push reach, replace with the App Group ID configured in Apple Developer Center or Xcode; not required on Android.
    // applicationGroupID: 'group.<#YOUR_APP_GROUP_ID#>',
    // The current Flutter API still requires this parameter, but the callback is to be deprecated.
    // Do not handle notification clicks here; later sections introduce the recommended listener approach.
    onNotificationClicked:
        ({required String ext, String? userID, String? groupID}) {},
  );

  if (registerRes.code != 0) {
    debugPrint(
      'registerPush failed: code=${registerRes.code}, '
      'msg=${registerRes.errorMessage}, deviceToken=${registerRes.data}',
    );
    return;
  }

  final ridRes = await push.getRegistrationID();
  debugPrint(
    'registerPush after login success, registrationID=${ridRes.data}, '
    'code=${ridRes.code}, msg=${ridRes.errorMessage}',
  );
}

Future<void> sendTestPushMessage({
  required String targetUserID,
}) async {
  final createRes = await TencentImSDKPlugin
      .v2TIMManager.v2TIMMessageManager
      .createTextMessage(text: 'Hello TIMPush');

  final message = createRes.data?.messageInfo;
  if (createRes.code != 0 || message == null) {
    debugPrint('createTextMessage failed: code=${createRes.code}');
    return;
  }

  final sendRes = await TencentImSDKPlugin
      .v2TIMManager.v2TIMMessageManager
      .sendMessage(
        message: message,
        receiver: targetUserID,
        groupID: '',
        priority: MessagePriorityEnum.V2TIM_PRIORITY_NORMAL,
        onlineUserOnly: false,
        offlinePushInfo: OfflinePushInfo(
          title: 'Push title',
          desc: 'Push content',
          ext: '{"action":"open_chat","conversationID":"c2c_$targetUserID"}',
        ),
      );

  debugPrint(
    'sendMessage result: code=${sendRes.code}, desc=${sendRes.desc}, '
    'msgID=${sendRes.data?.msgID}',
  );
}