using KakaoGame.API;

KGTApplication.InitSDK();

using KakaoGame.API;

KGTApplication.Start((result) =>
{
    if (result.IsSuccess)
    {
        // Start successful
        if (KGTPlayer.IsLoggedIn) 
        {
            // Auto login successful
            // The current Player's ID issued by the platform
            string playerId = KGTPlayer.CurrentPlayer.PlayerId;
            // Platform access token
            string accessToken = KGTPlayer.AccessToken;
            // Retrieve the current IDP authentication information
            var idpProfile = KGTPlayer.CurrentPlayer.IdpProfile;
            // [TODO] Log in to the game server and proceed to the game screen
        } 
        else 
        {
            // No auto login information, call the login API
        }
    }
    else 
    {
        if (result.code == KGTResultCode.NetworkFailure ||
            result.code == KGTResultCode.ServerTimeout ||
            result.code == KGTResultCode.ServerConnectionFailed) 
        {
            // [TODO] In case of a network error, notify the user that the start failed due to network issues and retry
        } 
        else 
        {
            // [TODO] Notify the user that an error occurred. It would be helpful to include the error code in the message for tracking the cause.
        }
    }
});

using KakaoGame.API;

// Implement in the background transition function of appDelegate
// [Note] Implement in OnApplicationPause.
// [Note] Do not implement in OnApplicationFocus.
void OnApplicationPause(bool paused) {
    // Method to be executed when the game moves to the background
    // The Pause API always returns success.
    // Therefore, you do not need to check the result separately in the game.
    if (paused)
    {
        KGTApplication.Pause((result) => {});
    }
}

using KakaoGame.API;

// Implement in the background transition function of appDelegate
// [Note] Implement in OnApplicationPause.
// [Note] Do not implement in OnApplicationFocus.
void OnApplicationPause(bool paused) {
    if (!paused) // When moved to the foreground
    {
        // Method to be executed when the game moves to the foreground
        KGTApplication.Resume((result) => 
        {
            if (result.IsSuccess) 
            {
                // [TODO] If resume is successful, resume the game screen.
            } 
            else 
            {
                // [TODO] If resume fails, navigate to the login screen if it’s an authentication failure; otherwise, show an error popup and check if the user wants to retry.
                if (result.code == KGTResultCode.AuthFailure ||
                    result.code == KGTResultCode.IdpAuthFailure) 
                {
                    // [TODO] In case of authentication failure, move to the start screen and perform the new login flow again.
                } 
                else 
                {
                    // [TODO] If other errors occur, provide an error notification and retry the resume.
                }
            }
        });
    }
}

using KakaoGame.API;

KGTIdpCode idpCode = KGTIdpCode.Kakao;

KGTPlayer.Login(idpCode, (result) =>
{
    if (result.IsSuccess) 
    {
        // Handle successful login.
        // The current Player's ID issued by the platform
        string playerId = KGTPlayer.CurrentPlayer.PlayerId;
        // Platform access token
        string accessToken = KGTPlayer.AccessToken;
        // Retrieve the current IDP authentication information
        var idpProfile = KGTPlayer.CurrentPlayer.IdpProfile;
        // [TODO] Log in to the game server and proceed to the game screen
    } 
    else 
    {
        // Handle login failure.
        if (result.code == KGTResultCode.NetworkFailure ||
            result.code == KGTResultCode.ServerTimeout ||
            result.code == KGTResultCode.ServerConnectionFailed) 
        {
            // [TODO] If a network error occurs, prompt the user to retry logging in.
        } 
        else if (result.code == KGTResultCode.Forbidden) 
        {
            // [TODO] During the CBT period, authentication may not be possible for users who are not allowed. Display a notification to the user, and after clicking confirm, implement the app to exit.
        } 
        else if (result.code == KGTResultCode.UserCanceled) 
        {
            // [TODO] Since the user canceled during the login process, the login screen should be maintained.
        } 
        else 
        {
            // [TODO] If other errors occur, provide an error notification and prompt the user to retry logging in.
            // It is necessary to check the error code and logs to determine the cause.
        }
    }
});

using KakaoGame.API;

// The bridgeToken received through the launcher
string bridgeToken = "";

KGTPlayer.LoginWithBridgeToken(bridgeToken, (result) =>
{
    if (result.IsSuccess) 
    {
        // Handle successful login.
        // The current Player's ID issued by the platform
        string playerId = KGTPlayer.CurrentPlayer.PlayerId;
        // Platform access token
        string accessToken = KGTPlayer.AccessToken;
        // Retrieve the current IDP authentication information
        var idpProfile = KGTPlayer.CurrentPlayer.IdpProfile;
        // [TODO] Log in to the game server and proceed to the game screen
    } 
    else 
    {
        // Handle login failure.
        if (result.code == KGTResultCode.NetworkFailure ||
            result.code == KGTResultCode.ServerTimeout ||
            result.code == KGTResultCode.ServerConnectionFailed) 
        {
            // [TODO] If a network error occurs, prompt the user to retry logging in.
        } 
        else if (result.code == KGTResultCode.Forbidden) 
        {
            // [TODO] During the CBT period, authentication may not be possible for users who are not allowed. Display a notification to the user, and after clicking confirm, implement the app to exit.
        } 
        else if (result.code == KGTResultCode.UserCanceled) 
        {
            // [TODO] Since the user canceled during the login process, the login screen should be maintained.
        } 
        else 
        {
            // [TODO] If other errors occur, provide an error notification and prompt the user to retry logging in.
            // It is necessary to check the error code and logs to determine the cause.
        }
    }
});

using KakaoGame.API;

KGTPlayer.Logout(false, (result) =>
{
    if (result.IsSuccess) 
    {
        // Logout successful
        // [TODO] Return to the start screen
    } 
    else 
    {
        // Logout failed
    }
});

using KakaoGame.API;

KGTPlayer.Unregister(false, (result) =>
{
    if (result.IsSuccess) 
    {
        // Unregistration successful
        // [TODO] Return to the start screen
    } 
    else 
    {
        // Unregistration failed
    }
});

using KakaoGame.API;

KGTIdpCode idpCode = KGTIdpCode.Kakao;

KGTPlayer.Connect(idpCode, (result) =>
{
    if (result.IsSuccess) 
    {
        // Account connection successful
    } 
    else if (result.code == KGTResultCode.NotAuthorized) 
    {
        // When the current session is not authenticated
    }
    else if (result.code == KGTResultCode.InvalidState) 
    {
        // When the account is already connected
    }
    else if (result.code == KGTResultCode.AlreadyUsedIDPAccount) 
    {
        // When attempting to connect with an IDP account that is already in use
    }
    else 
    {
        // Other errors
    }
});

using KakaoGame.API;

KGTPlayer player = KGTPlayer.CurrentPlayer;

using KakaoGame.API;

KGTIdpProfile idpProfile = KGTPlayer.CurrentPlayer.IdpProfile;

using KakaoGame.API;

string languageCode = KGTSystem.LanguageCode;

using KakaoGame.API;

string countryCode = KGTSystem.CountryCode;

using KakaoGame.API;

string geoCountryCode = KGTSystem.GeoCountryCode;

using KakaoGame.API;

string deviceId = KGTSystem.DeviceId;

using KakaoGame.API;

string deviceModel = KGTSystem.DeviceModel;

using KakaoGame.API;

string osName = KGTSystem.OsName;

using KakaoGame.API;

bool isNetworkConnected = KGTSystem.IsNetworkConnected;