import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.multidex.MultiDex;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.anotherdeveloper.firebasetest.R;
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 implements View.OnClickListener{
    FirebaseAuth firebaseAuth;

    private Button registerButton;
    private EditText emailEditText;
    private EditText passwordEditText;
    private TextView signInTextView;
    private ProgressDialog progressDialog;
    private FirebaseUser firebaseUser;


    @Override
    protected void attachBaseContext(Context newBase) {
        super.attachBaseContext(newBase);
        MultiDex.install(this);
    }

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

        registerButton = (Button)findViewById(R.id.registerButton);
        emailEditText = (EditText) findViewById(R.id.emailEditText);
        passwordEditText = (EditText) findViewById(R.id.passwordEditText);
        signInTextView = (TextView)findViewById(R.id.signInTextView);
        progressDialog = new ProgressDialog(this);

        firebaseAuth = FirebaseAuth.getInstance();
        firebaseUser = firebaseAuth.getCurrentUser();


        if(firebaseUser!=null){
            finish();
            startActivity(new Intent(getApplicationContext(),UserActivity.class));
        }

        registerButton.setOnClickListener(this);
        signInTextView.setOnClickListener(this);
    }

    private void RegisterUser(){
        String email = emailEditText.getText().toString().trim();
        String password = passwordEditText.getText().toString().trim();

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

        progressDialog.setMessage("User registration...");
        progressDialog.show();


        firebaseAuth.createUserWithEmailAndPassword(email,password).addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(@NonNull Task<AuthResult> task) {
                if(task.isSuccessful()){
                    Toast.makeText(MainActivity.this,"Registration completed :)",Toast.LENGTH_SHORT).show();
                    finish();
                    startActivity(new Intent(getApplicationContext(),UserActivity.class));

                }else{
                    Toast.makeText(MainActivity.this,"Registration failed :(",Toast.LENGTH_SHORT).show();
                }
                progressDialog.hide();
            }
        });


    }

    @Override
    public void onClick(View v) {
        if(v == registerButton){
            RegisterUser();
        }
        if(v == signInTextView){
            finish();
            startActivity(new Intent(getApplicationContext(),LoginActivity.class));
        }

    }