package com.example.bishal.evader;

import android.app.ProgressDialog;
import android.content.Intent;
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.TextView;
import android.widget.Toast;

import com.example.bishal.evader.Model.Users;
import com.example.bishal.evader.Prevalent.Prevalent;
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.rey.material.widget.CheckBox;

import io.paperdb.Paper;

public class LoginActivity extends AppCompatActivity
{

    private EditText InputPhoneNumber, InputPassword;
    private Button LoginButton;
    private ProgressDialog loadingBar;
    private TextView AdminLink, NotAdminLink;

    private String parentDbName = "Users";
    private CheckBox chkBoxRememberMe;


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

        LoginButton = (Button) findViewById(R.id.login_btn);
        InputPassword = (EditText) findViewById(R.id.login_password_input);
        InputPhoneNumber = (EditText) findViewById(R.id.login_phone_number_input);
        AdminLink = (TextView) findViewById(R.id.admin_panel_link);
        NotAdminLink = (TextView) findViewById(R.id.not_admin_panel_link);

        loadingBar = new ProgressDialog(this);

        chkBoxRememberMe = (CheckBox) findViewById(R.id.remember_me_chkb);
        Paper.init(this);

        LoginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {
                LoginUser();

            }
        });
//admin and users buttons change accordingly if users or admin press them accidentally
        AdminLink.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {
                LoginButton.setText("Login Admin");
                AdminLink.setVisibility(View.INVISIBLE);
                NotAdminLink.setVisibility(View.VISIBLE);
                parentDbName = "Admins";
            }
        });

        NotAdminLink.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {

                LoginButton.setText("Login");
                AdminLink.setVisibility(View.VISIBLE);
                NotAdminLink.setVisibility(View.INVISIBLE);
                parentDbName = "Users";

            }
        });

    }



    private  void LoginUser()
    {
        String phone = InputPhoneNumber.getText().toString();
        String password = InputPassword.getText().toString();

          if (TextUtils.isEmpty(phone))
    {
        Toast.makeText(this, "Please type your phone number here...", Toast.LENGTH_SHORT).show();
    }
    else if (TextUtils.isEmpty(password))
    {
        Toast.makeText(this, "Please type your password here...", Toast.LENGTH_SHORT).show();
    }
    else
          {
              loadingBar.setTitle("Login Account");
              loadingBar.setMessage("Please wait as the credentials are being checked");
              loadingBar.setCanceledOnTouchOutside(false);
              loadingBar.show();

              AllowAccessToAccount(phone, password);
          }
    }



    private void AllowAccessToAccount(final String phone, final String password)
    {
//ifthe checkbox for remember me is ticked it will return value
        if (chkBoxRememberMe.isChecked())
        {
            Paper.book().write(Prevalent.UserPhoneKey, phone);
            Paper.book().write(Prevalent.UserPasswordKey, password);
        }


        final DatabaseReference RootRef;
        RootRef = FirebaseDatabase.getInstance().getReference();

        RootRef.addListenerForSingleValueEvent(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot)
            {
                if (dataSnapshot.child(parentDbName).child(phone).exists())
                {
                    Users usersData = dataSnapshot.child(parentDbName).child(phone).getValue(Users.class);

                    if (usersData.getPhone().equals(phone)) {
                        if (usersData.getPassword().equals(password)) {

                            if (parentDbName.equals("Admins")) {
                                Toast.makeText(LoginActivity.this, "Welcome Admin You are logged in", Toast.LENGTH_SHORT).show();
                                loadingBar.dismiss();

                                Intent intent = new Intent(LoginActivity.this, AdminCategoryActivity.class);
                                startActivity(intent);
                            } else if (parentDbName.equals("Users")) {
                                Toast.makeText(LoginActivity.this, "You are logged in", Toast.LENGTH_SHORT).show();
                                loadingBar.dismiss();

                                Intent intent = new Intent(LoginActivity.this, HomeActivity.class);
                                Prevalent.currentOnlineUser = usersData;
                                startActivity(intent);

                            }
                        }
                        else
                        {
                            loadingBar.dismiss();
                            Toast.makeText(LoginActivity.this, "Your password is incorrect", Toast.LENGTH_SHORT).show();
                        }
                    }
                }
                else
                {
                    Toast.makeText(LoginActivity.this, "Account on this " + phone + " number is not in database", Toast.LENGTH_SHORT).show();
                    loadingBar.dismiss();
                    Toast.makeText(LoginActivity.this, "Please create an Account idiot", Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError)
            {

            }
        });
    }
}