package com.example.medin.cofa;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;

public class MainActivity extends AppCompatActivity {
private Button btn_ingresar;
private EditText et_pass,et_usuario;
public final static String extra= "usuario";

private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    btn_ingresar= (Button)findViewById(R.id.button);
    et_pass=(EditText)findViewById(R.id.editText_pass);
    et_usuario= (EditText)findViewById(R.id.editText_usuario);

    btn_ingresar.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mAuth.signInWithEmailAndPassword(et_usuario.getText().toString(), et_pass.getText().toString())
                    .addOnCompleteListener(MainActivity.this, new OnCompleteListener<AuthResult>() {
                        @Override
                        public void onComplete(@NonNull Task<AuthResult> task) {
                          //  Log.d(TAG, "signInWithEmail:onComplete:" + task.isSuccessful());

                            // If sign in fails, display a message to the user. If sign in succeeds
                            // the auth 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, "signInWithEmail:failed", task.getException());
                                Toast.makeText(MainActivity.this,"Autentificacion Fallada.",
                                        Toast.LENGTH_SHORT).show();
                            }

                            // ...
                        }
                    });

        }
    });

    mAuth = FirebaseAuth.getInstance();
    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();
            if (user != null) {
                Intent segundo = new Intent(MainActivity.this,Main2Activity.class);
                segundo.putExtra(extra,user.getEmail());
                startActivity(segundo);
                // User is signed in
               // Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
            } else {
                // User is signed out
                //Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // ...
        }
    };


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