import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.support.annotation.NonNull;
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.Toast;

import com.firebase.client.Firebase;
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;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

public class CreateAccountActivity extends AppCompatActivity
{
    private DatabaseReference databaseReference;
    private FirebaseAuth firebaseAuth;

private Button createButton;

private EditText firstNameText;
private EditText lastNameText;
private EditText ageText;
private EditText emailText;
private EditText passwordText;
private EditText phoneNumberText;

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

    firebaseAuth = FirebaseAuth.getInstance();
    databaseReference = FirebaseDatabase.getInstance().getReference();

    createButton = (Button) findViewById(R.id.CreateNewAccount);

    firstNameText = (EditText) findViewById(R.id.FirstNameField);
    lastNameText = (EditText) findViewById(R.id.LastNameField);
    ageText = (EditText) findViewById(R.id.AgeField);
    emailText = (EditText) findViewById(R.id.EmailField);
    passwordText = (EditText) findViewById(R.id.PasswordField);
    phoneNumberText = (EditText) findViewById(R.id.PhoneNumberField);

    createButton.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            databaseReference.child("test2").setValue("Testing");
            createAccount();
            databaseReference.child("test8").setValue("Testing");
        }
    });
}

private void createAccount()
{
    databaseReference.child("test3").setValue("Testing");
    final String firstName = firstNameText.getText().toString();
    final String lastName = lastNameText.getText().toString();
    final String age = ageText.getText().toString();
    final String email = emailText.getText().toString();
    final String password = passwordText.getText().toString();
    final String phoneNumber = phoneNumberText.getText().toString();
    databaseReference.child("test4").setValue("Testing");

    if (!(TextUtils.isEmpty(firstName) || TextUtils.isEmpty(lastName) || TextUtils.isEmpty(age) || TextUtils.isEmpty(email) || TextUtils.isEmpty(password) || TextUtils.isEmpty(phoneNumber)))
    {

        databaseReference.child("test5").setValue("Testing");
        firebaseAuth.createUserWithEmailAndPassword(email, password)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>()
                {

                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task)
                    {
                        if (!(task.isSuccessful()))
                            Toast.makeText(CreateAccountActivity.this, task.getException().getMessage(), Toast.LENGTH_LONG).show();
                        else
                        {
                            databaseReference.child("test6").setValue("Testing");
                            final FirebaseUser user = firebaseAuth.getCurrentUser();

                            user.sendEmailVerification().addOnCompleteListener(new OnCompleteListener<Void>()
                            {
                                @Override
                                public void onComplete(@NonNull Task<Void> task)
                                {
                                    if (task.isSuccessful())
                                    {

                                        Toast.makeText(CreateAccountActivity.this, "Verification email was sent", Toast.LENGTH_LONG).show();
                                        databaseReference.child("test7").setValue("Testing");

                                        firebaseAuth.signOut();

                                        startActivity(new Intent(CreateAccountActivity.this, MainActivity.class));
                                        finish();
                                    }
                                    else
                                    {
                                        Toast.makeText(CreateAccountActivity.this, "Email could not be verified", Toast.LENGTH_LONG).show();
                                        finish();
                                    }
                                }
                            });
                        }
                    }
                });
    }
    else
        Toast.makeText(CreateAccountActivity.this, "Field(s) cannot be left empty", Toast.LENGTH_LONG).show();
}