Login

package callme.asilahsalma.customer;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.login.LoginManager;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthCredential;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FacebookAuthProvider;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.GoogleAuthProvider;
import com.facebook.FacebookSdk;

public class Login extends AppCompatActivity {

    private static final String TAG = "Login Activity";
    private EditText inputEmail, inputPassword;
    private FirebaseAuth mAuth;
    private FirebaseAuth.AuthStateListener mAuthListener;
    private ProgressBar progressBar;
    private Button btnSignup, btnLogin, btnReset;

    private SignInButton BtnLoginGoogle;
    private LoginButton BtnLoginFacebook;
    private static final int RC_SIGN_IN = 0;
    private GoogleApiClient mGoogleApiClient;
    CallbackManager callbackManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       // FacebookSdk.sdkInitialize(getApplicationContext());
        // set the view now
        setContentView(R.layout.activity_login);

        BtnLoginGoogle = (SignInButton) findViewById(R.id.btn_login_google);
        BtnLoginFacebook =(LoginButton) findViewById(R.id.btn_login_facebook);
        inputEmail = (EditText) findViewById(R.id.email);
        inputPassword = (EditText) findViewById(R.id.password);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);
        btnSignup = (Button) findViewById(R.id.btn_signup);
        btnLogin = (Button) findViewById(R.id.btn_login);
        btnReset = (Button) findViewById(R.id.btn_reset_password);

        //Get Firebase mAuth instance
        mAuth = FirebaseAuth.getInstance();
     //   FirebaseAuth.getInstance().signOut();

     //   mAuth = FirebaseAuth.getInstance();

        mAuthListener = new FirebaseAuth.AuthStateListener() {
            @Override
            public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {

                FirebaseUser user = mAuth.getCurrentUser();
                if (user != null) {
                    // User is signed in
                    Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
               //     String name = user.getDisplayName();
                //    String email = user.getEmail();
               //     Uri photourl = user.getPhotoUrl();
                //    String uid = user.getUid();
                    startActivity(new Intent(Login.this,FoodList_content.class));
                    finish();
                } else {
                    // User is signed out
                    Log.d(TAG, "onAuthStateChanged:signed_out");
                }
                // ...
            }
        };

        //Facebook
        callbackManager = CallbackManager.Factory.create();

     /*   LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {

            }

            @Override
            public void onCancel() {

            }

            @Override
            public void onError(FacebookException error) {

            }
        });*/

     /*   private void handleFacebookAccessToken(AccessToken token) {
            Log.d(TAG, "handleFacebookAccessToken:" + token);

            AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
            mAuth.signInWithCredential(credential)
                    .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                        @Override
                        public void onComplete(@NonNull Task<AuthResult> task) {
                            if (task.isSuccessful()) {
                                // Sign in success, update UI with the signed-in user's information
                                Log.d(TAG, "signInWithCredential:success");
                                FirebaseUser user = mAuth.getCurrentUser();
                                updateUI(user);
                            } else {
                                // If sign in fails, display a message to the user.
                                Log.w(TAG, "signInWithCredential:failure", task.getException());
                                Toast.makeText(FacebookLoginActivity.this, "Authentication failed.",
                                        Toast.LENGTH_SHORT).show();
                                updateUI(null);
                            }

                            // ...
                        }
                    });
        }*/
        BtnLoginFacebook.setReadPermissions("email","public_profile");
        BtnLoginFacebook.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {
              //  Toast.makeText(Login.this,"Login Facebook success\n"+ loginResult.getAccessToken().getUserId() ,Toast.LENGTH_LONG).show();
            Log.d(TAG,"facebook:onSuccess" + loginResult);
                handleFacebookAccessToken(loginResult.getAccessToken());
            }

            @Override
            public void onCancel() {
                Toast.makeText(Login.this,"Login Facebook canceled",Toast.LENGTH_LONG).show();
            }

            @Override
            public void onError(FacebookException error) {
                Toast.makeText(Login.this,"Error Login",Toast.LENGTH_LONG).show();
            }
        });



        // Configure Google Sign In
        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();


        mGoogleApiClient = new GoogleApiClient.Builder(getApplicationContext())
                .enableAutoManage(this, new GoogleApiClient.OnConnectionFailedListener() {
                    @Override
                    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

                        Toast.makeText(Login.this,"You Got an Error",Toast.LENGTH_LONG).show();
                    }
                })
                .addApi(Auth.GOOGLE_SIGN_IN_API,gso)
                .build();

        BtnLoginGoogle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                signIn();
            }
        });



     //   if (mAuth.getCurrentUser() != null) {
     //       startActivity(new Intent(Login.this, MainActivity.class));
     //       finish();
     //   }




      //  //Get Firebase mAuth instance
       // mAuth = FirebaseAuth.getInstance();

        btnSignup.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(Login.this, SignUp.class));
            }
        });

        btnReset.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(Login.this, ResetPassword.class));
            }
        });

        btnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String email = inputEmail.getText().toString();
                final String password = inputPassword.getText().toString();

                if (TextUtils.isEmpty(email)) {
                    Toast.makeText(getApplicationContext(), "Enter email address!", Toast.LENGTH_SHORT).show();
                    return;
                }

                if (TextUtils.isEmpty(password)) {
                    Toast.makeText(getApplicationContext(), "Enter password!", Toast.LENGTH_SHORT).show();
                    return;
                }

                progressBar.setVisibility(View.VISIBLE);

                //authenticate user
                mAuth.signInWithEmailAndPassword(email, password)
                        .addOnCompleteListener(Login.this, new OnCompleteListener<AuthResult>() {
                            @Override
                            public void onComplete(@NonNull Task<AuthResult> task) {
                                // If sign in fails, display a message to the user. If sign in succeeds
                                // the mAuth state listener will be notified and logic to handle the
                                // signed in user can be handled in the listener.
                                progressBar.setVisibility(View.GONE);
                                if (!task.isSuccessful()) {
                                    // there was an error
                                    if (password.length() < 6) {
                                        inputPassword.setError(getString(R.string.minimum_password));
                                    } else {
                                        Toast.makeText(Login.this, getString(R.string.auth_failed), Toast.LENGTH_LONG).show();
                                    }
                                } else {
                                 //   onStart();
                               //     Intent pindah = new Intent(Login.this,SignUp.class);
                               //     startActivity(pindah);
                               //     finish();
                                }
                            }
                        });




            }
        });
    }

    private void handleFacebookAccessToken(AccessToken accessToken) {
        AuthCredential credential = FacebookAuthProvider.getCredential(accessToken.getToken());
        mAuth.signInWithCredential(credential).addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(@NonNull Task<AuthResult> task) {
                if (!task.isSuccessful())
                {
                    Toast.makeText(getApplicationContext(),"firebase_error_login",Toast.LENGTH_LONG).show();
                }
            }
        });
    }


    private void signIn() {
        Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        //Login Google
        super.onActivityResult(requestCode, resultCode, data);
        //Login facebook
        callbackManager.onActivityResult(requestCode, resultCode, data);
        // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
        if (requestCode == RC_SIGN_IN) {
            GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
            if (result.isSuccess()) {
                // Google Sign In was successful, authenticate with Firebase
                GoogleSignInAccount account = result.getSignInAccount();
                firebaseAuthWithGoogle(account);
            } else {
                // Google Sign In failed, update UI appropriately
                // ...
            }
        }
    }

    private void firebaseAuthWithGoogle(GoogleSignInAccount account) {
        Log.d(TAG, "firebaseAuthWithGoogle:" + account.getId());
        AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
        mAuth.signInWithCredential(credential)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        Log.d(TAG, "signInWithCredential:onComplete:" + task.isSuccessful());

                        // If sign in fails, display a message to the user. If sign in succeeds
                        // the mAuth state listener will be notified and logic to handle the
                        // signed in user can be handled in the listener.
                        if (!task.isSuccessful()) {
                            Log.w(TAG, "signInWithCredential", task.getException());
                            Toast.makeText(Login.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                        }
                        // ...
                    }
                });
    }


    @Override
    public void onStart() {
        super.onStart();
        mAuth.addAuthStateListener(mAuthListener);
    }

    @Override
    public void onStop() {
        super.onStop();
        if (mAuthListener != null) {
            mAuth.removeAuthStateListener(mAuthListener);
        }
    }


}