/// <summary>
/// Signs into Game Center account and Firebase (creating an account
/// automatically if needed).
/// </summary>
/// <returns>The task that will be completed when SignIn is completed.</returns>
public static Task <FirebaseUser> SignIn()
{
if (Firebase.Auth.GameCenterAuthProvider.IsPlayerAuthenticated())
{
var credentialFuture = Firebase.Auth.GameCenterAuthProvider.GetCredentialAsync();
var retUserFuture = credentialFuture.ContinueWith(credentialTask => {
if (credentialTask.IsFaulted)
{
throw credentialTask.Exception;
}
if (!credentialTask.IsCompleted)
{
throw new FetchCredentialFailedException(
"Game Center SignIn() failed to fetch credential.");
}
var credential = credentialTask.Result;
var userFuture = FirebaseAuth.DefaultInstance.SignInWithCredentialAsync(credential);
return(userFuture);
}).Unwrap().ContinueWith(userTask => {
if (userTask.IsFaulted)
{
throw userTask.Exception;
}
if (!userTask.IsCompleted)
{
throw new SignInFailedException(
"Game Center SignIn() failed to Sign In with Credential.");
}
SignInState.SetState(SignInState.State.GameCenter);
return(userTask.Result);
});
return(retUserFuture);
}
else
{
TaskCompletionSource <FirebaseUser> taskCompletionSource =
new TaskCompletionSource <FirebaseUser>();
taskCompletionSource.SetException(
new SignInFailedException(
"Game Center SignIn() failed - User not authenticated to Game Center."));
return(taskCompletionSource.Task);
}
}
/// <summary>
/// Signs into Google Play Games account and Firebase (creating an account automatically
/// if needed).
/// </summary>
/// <returns>The in.</returns>
public static Task <FirebaseUser> SignIn()
{
return(SignIntoGooglePlayServices(
(Credential credential, TaskCompletionSource <FirebaseUser> taskCompletionSource) => {
FirebaseAuth.DefaultInstance.SignInWithCredentialAsync(credential).ContinueWith(t => {
if (!t.IsCompleted || t.IsCanceled)
{
taskCompletionSource.SetCanceled();
}
else if (t.IsFaulted)
{
taskCompletionSource.SetException(t.Exception);
}
else
{
SignInState.SetState(SignInState.State.GooglePlayServices);
taskCompletionSource.SetResult(t.Result);
}
});
}));
}
/// <summary>
/// Whether or not the game is allowed to auto sign in.
/// </summary>
/// <returns><c>true</c>, if auto sign in was allowed, <c>false</c> otherwise.</returns>
public static bool CanAutoSignIn()
{
SignInState.State state = SignInState.GetState();
return(state == SignInState.State.GooglePlayServices || state == SignInState.State.Unknown);
}