import android.content.Intent;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.firebase.client.AuthData;
import com.firebase.client.Firebase;
import com.firebase.client.FirebaseError;
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.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthCredential;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.GoogleAuthProvider;

import java.util.Map;

public class SignInActivity extends AppCompatActivity implements GoogleApiClient.OnConnectionFailedListener,
        View.OnClickListener {

    private static final String TAG = "SignInActivity";
    private static final int RC_SIGN_IN = 9001;
    private SignInButton mSignInButton;
    private Button but;
    private EditText email;
    private EditText password;
    private FirebaseAuth mAuth;
    private FirebaseUser mFirebaseUser;

    private GoogleApiClient mGoogleApiClient;
    private FirebaseAuth mFirebaseAuth;
    String user_id="",pass="";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_in);
        email=(EditText)findViewById(R.id.emails);


        password=(EditText)findViewById(R.id.passwords);

        but=(Button)findViewById(R.id.create);
        Firebase.setAndroidContext(getBaseContext());

        mAuth = FirebaseAuth.getInstance();

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


                user_id= email.getText().toString();
                pass= password.getText().toString();
               Firebase ref = new Firebase("https://final-6b828.firebaseio.com/auth");
                ref.createUser(user_id, pass, new Firebase.ValueResultHandler<Map<String, Object>>() {
                    @Override
                    public void onSuccess(Map<String, Object> result) {
                        System.out.println("Successfully created user account with uid: " + result.get("uid"));
                        String a=  result.get("uid").toString();
                        Log.i("Success",user_id);
                        Log.i("Success",pass);
                        Toast.makeText(getApplicationContext(), "Pass",
                                Toast.LENGTH_LONG).show();
                    }
                    @Override
                    public void onError(FirebaseError firebaseError) {
                        // there was an error
                        System.out.println("Failed to create user account : ");
                        Log.i("Failed","a");
                        Toast.makeText(getApplicationContext(), "Failed",
                                Toast.LENGTH_LONG).show();
                    }

                });


            }
        });


        mSignInButton = (SignInButton) findViewById(R.id.sign_in_button);


        mSignInButton.setOnClickListener(this);

        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */)
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();

        // Initialize FirebaseAuth
        mFirebaseAuth = FirebaseAuth.getInstance();
    }

    private void handleFirebaseAuthResult(AuthResult authResult) {
        if (authResult != null) {

            FirebaseUser user = authResult.getUser();
            Toast.makeText(this, "Welcome " + user.getEmail(), Toast.LENGTH_SHORT).show();


            startActivity(new Intent(this, MainActivity.class));
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.sign_in_button:
                signIn();

                break;
            default:
                return;
        }
    }

    private void signIn() {
        Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (requestCode == RC_SIGN_IN) {
            GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
            if (result.isSuccess()) {

                GoogleSignInAccount account = result.getSignInAccount();
                firebaseAuthWithGoogle(account);
                Log.e(TAG, "Google Sign In Successfull.");
            } else {

                Log.e(TAG, "Google Sign In failed.");
            }
        }
    }

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

                        if (!task.isSuccessful()) {
                            Log.w(TAG, "signInWithCredential", task.getException());
                            Toast.makeText(SignInActivity.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                        } else {
                            startActivity(new Intent(SignInActivity.this, MainActivity.class));
                            finish();
                            try {
                                Thread.sleep(5000);
                            } catch (InterruptedException e) {
                                e.printStackTrace();
                            }
                        }
                    }
                });
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

        Log.d(TAG, "onConnectionFailed:" + connectionResult);
        Toast.makeText(this, "Google Play Services error.", Toast.LENGTH_SHORT).show();
    }

}
}

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


            user_id= email.getText().toString();
            pass= password.getText().toString();
           Firebase ref = new Firebase("https://final-6b828.firebaseio.com/auth");
            ref.createUser(user_id, pass, new Firebase.ValueResultHandler<Map<String, Object>>() {
                @Override
                public void onSuccess(Map<String, Object> result) {
                    System.out.println("Successfully created user account with uid: " + result.get("uid"));
                    String a=  result.get("uid").toString();
                    Log.i("Success",user_id);
                    Log.i("Success",pass);
                    Toast.makeText(getApplicationContext(), "Pass",
                            Toast.LENGTH_LONG).show();
                }
                @Override
                public void onError(FirebaseError firebaseError) {
                    // there was an error
                    System.out.println("Failed to create user account : ");
                    Log.i("Failed","a");
                    Toast.makeText(getApplicationContext(), "Failed",
                            Toast.LENGTH_LONG).show();
                }

            });


        }
    });