Login Activity

package com.beingdev.magicprint;

import android.content.Intent;
import android.graphics.Typeface;
import android.os.Bundle;
import androidx.core.content.res.ResourcesCompat;
import androidx.appcompat.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.android.volley.NetworkError;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.ServerError;
import com.android.volley.TimeoutError;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.Volley;
import com.beingdev.magicprint.networksync.CheckInternetConnection;
import com.beingdev.magicprint.networksync.LoginRequest;
import com.beingdev.magicprint.usersession.UserSession;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import com.kaopiz.kprogresshud.KProgressHUD;

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


public class LoginActivity extends AppCompatActivity {

    private EditText edtemail,edtpass;
    private String email,pass,sessionmobile;
    private TextView appname,forgotpass,registernow;
    private RequestQueue requestQueue;
    private UserSession session;
    public static final String TAG = "MyTag";
    private int cartcount, wishlistcount;

    //Getting reference to Firebase Database
    FirebaseDatabase database = FirebaseDatabase.getInstance();
    DatabaseReference mDatabaseReference = database.getReference();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        Log.e("Login CheckPoint","LoginActivity started");
        //check Internet Connection
        new CheckInternetConnection(this).checkConnection();

        Typeface typeface = ResourcesCompat.getFont(this, R.font.blacklist);
        appname = findViewById(R.id.appname);
        appname.setTypeface(typeface);

        edtemail= findViewById(R.id.email);
        edtpass= findViewById(R.id.password);

        Bundle registerinfo=getIntent().getExtras();
        if (registerinfo!=null) {
                edtemail.setText(registerinfo.getString("email"));
        }

        session= new UserSession(getApplicationContext());

        requestQueue = Volley.newRequestQueue(LoginActivity.this);//Creating the RequestQueue

        //if user wants to register
        registernow= findViewById(R.id.register_now);
        registernow.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(LoginActivity.this,Register.class));
                finish();
            }
        });

        //if user forgets password
        forgotpass=findViewById(R.id.forgot_pass);
        forgotpass.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {

                startActivity(new Intent(LoginActivity.this,ForgotPassword.class));
            }
        });


        //Validating login details
        Button button=findViewById(R.id.login_button);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent loginSuccess = new Intent(LoginActivity.this, MainActivity.class);
                startActivity(loginSuccess);
                finish();

  /*              email=edtemail.getText().toString();
                pass=edtpass.getText().toString();

                if (validateUsername(email) && validatePassword(pass)) { //Username and Password Validation

                    //Progress Bar while connection establishes

                          final KProgressHUD progressDialog=  KProgressHUD.create(LoginActivity.this)
                            .setStyle(KProgressHUD.Style.SPIN_INDETERMINATE)
                            .setLabel("Please wait")
                            .setCancellable(false)
                            .setAnimationSpeed(2)
                            .setDimAmount(0.5f)
                            .show();


                    LoginRequest loginRequest = new LoginRequest(email, pass, new Response.Listener<String>() {
                        @Override
                        public void onResponse(String response) {

                            progressDialog.dismiss();
                            // Response from the server is in the form if a JSON, so we need a JSON Object
                            try {
                                JSONObject jsonObject = new JSONObject(response);
                                if (jsonObject.getBoolean("success")) {

                                    //Passing all received data from server to next activity
                                    String sessionname = jsonObject.getString("name");
                                    sessionmobile = jsonObject.getString("mobile");
                                    String sessionemail =  jsonObject.getString("email");
                                    String sessionphoto =  jsonObject.getString("url");

                                    //create shared preference and store data
                                    session.createLoginSession(sessionname,sessionemail,sessionmobile,sessionphoto);

                                    //count value of firebase cart and wishlist
                                    countFirebaseValues();

                                    Intent loginSuccess = new Intent(LoginActivity.this, MainActivity.class);
                                    startActivity(loginSuccess);
                                    finish();
                                } else {
                                    if(jsonObject.getString("status").equals("INVALID"))
                                        Toast.makeText(LoginActivity.this, "User Not Found", Toast.LENGTH_SHORT).show();
                                    else{
                                        Toast.makeText(LoginActivity.this, "Passwords Don't Match", Toast.LENGTH_SHORT).show();
                                    }
                                }
                            } catch (JSONException e) {
                                e.printStackTrace();
                                Toast.makeText(LoginActivity.this, "Bad Response From Server", Toast.LENGTH_SHORT).show();
                            }
                        }
                    }, new Response.ErrorListener() {
                        @Override
                        public void onErrorResponse(VolleyError error) {
                            progressDialog.dismiss();
                            if (error instanceof ServerError)
                                Toast.makeText(LoginActivity.this, "Server Error", Toast.LENGTH_SHORT).show();
                            else if (error instanceof TimeoutError)
                                Toast.makeText(LoginActivity.this, "Connection Timed Out", Toast.LENGTH_SHORT).show();
                            else if (error instanceof NetworkError)
                                Toast.makeText(LoginActivity.this, "Bad Network Connection", Toast.LENGTH_SHORT).show();
                        }
                    });
                    loginRequest.setTag(TAG);
                    requestQueue.add(loginRequest);
                }

            }
        });


    }

    private void countFirebaseValues() {

        mDatabaseReference.child("cart").child(sessionmobile).addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                    Log.e(dataSnapshot.getKey(),dataSnapshot.getChildrenCount() + "");
                    session.setCartValue((int)dataSnapshot.getChildrenCount());
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });

        mDatabaseReference.child("wishlist").child(sessionmobile).addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                Log.e(dataSnapshot.getKey(),dataSnapshot.getChildrenCount() + "");
                session.setWishlistValue((int)dataSnapshot.getChildrenCount());
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });
    }

    private boolean validatePassword(String pass) {


        if (pass.length() < 4 || pass.length() > 20) {
            edtpass.setError("Password Must consist of 4 to 20 characters");
            return false;
        }
        return true;
    }

    private boolean validateUsername(String email) {

        if (email.length() < 4 || email.length() > 30) {
            edtemail.setError("Email Must consist of 4 to 30 characters");
            return false;
        } else if (!email.matches("^[A-za-z0-9.@]+")) {
            edtemail.setError("Only . and @ characters allowed");
            return false;
        } else if (!email.contains("@") || !email.contains(".")) {
            edtemail.setError("Email must contain @ and .");
            return false;
        }
        return true;
    }


    @Override
    protected void onResume() {
        super.onResume();
        Log.e("Login CheckPoint","LoginActivity resumed");
        //check Internet Connection
        new CheckInternetConnection(this).checkConnection();

        }

    @Override
    protected void onStop () {
        super.onStop();
        Log.e("Login CheckPoint","LoginActivity stopped");
    }

*/
            }
        });
    }
  @Override
    public void onBackPressed() {
        super.onBackPressed();
        finish();
    }
}