package ph.com.directagent5.daps;

import android.content.Intent;
import android.support.v7.app.AlertDialog;
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.TextView;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.toolbox.Volley;

import org.json.JSONException;
import org.json.JSONObject;

public class LoginActivity extends AppCompatActivity {

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

        final EditText etUsername = (EditText) findViewById(R.id.etUsername);
        final EditText etPassword = (EditText) findViewById(R.id.etPassword);
        final Button bLogin = (Button) findViewById(R.id.bLogin);
        final TextView tvRegisterLink = (TextView) findViewById(R.id.tvRegister);
        final TextView tvForgotPasswordLink = (TextView) findViewById(R.id.tvForgotPassword);

        // When user clicks Register link
        tvRegisterLink.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent tvRegisterIntent = new Intent(LoginActivity.this, RegisterActivity.class);
                LoginActivity.this.startActivity(tvRegisterIntent);
            }
        });

        // When user clicks the login button
        bLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                final String username = etUsername.getText().toString();
                final String password = etPassword.getText().toString();

                Response.Listener<String> responseListener = new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {

                        try {
                            JSONObject jsonResponse = new JSONObject(response);
                            boolean success = jsonResponse.getBoolean("success");

                            if(success){

                                String branch = jsonResponse.getString("branch");

                                Intent intent = new Intent(LoginActivity.this, UserActivity.class);
                                intent.putExtra("branch", branch);

                                LoginActivity.this.startActivity(intent);

                            } else {
                                AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity.this);
                                builder.setMessage("Login Failed")
                                        .setNegativeButton("Retry", null)
                                        .create()
                                        .show();
                            }
                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                };

                LoginRequest loginRequest = new LoginRequest(username, password, responseListener);
                RequestQueue queue = Volley.newRequestQueue(LoginActivity.this);
                queue.add(loginRequest);
            }
        });
    }
}

package ph.com.directagent5.daps;


import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.toolbox.StringRequest;

import java.util.HashMap;
import java.util.Map;


public class LoginRequest extends StringRequest {

    private static final String LOGIN_REQUEST_URL = "https://example.com/beta/index.php/api/userLogin";
    private Map<String, String> params;

    public LoginRequest(String username, String password, Response.Listener<String> listener) {
        super(Request.Method.POST, LOGIN_REQUEST_URL, listener, null);
        params = new HashMap<>();
        params.put("username", username);
        params.put("password", password);
    }

    @Override
    public Map<String, String> getParams() {
        return params;
    }
}

function userLogin_post() {

    $username = $this->post('username');
    $password = $this->post('password');

    // $username = $_POST['username'];
    // $password = $_POST['password'];

    // $username = '0001';
    // $password = '2125';

    // Check in database
    $result = $this->user->login_user($username, $password);

    $response = array();
    $response['success'] = false;
    if($result){
        foreach ($result as $row) {
            $response['id'] = $row->id;
            $response['branch'] = $row->members_branch;
            $response['name'] = $row->members_name;
            $response['email'] = $row->members_email;
            $response['username'] = $row->members_username;
            $response['success'] = true;
        }
    }

    $result = json_encode($response);
    $this->response($result, REST_Controller::HTTP_CREATED);
}