package com.example.admin.androiddatabaseexample;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
 private EditText etUserEmail;
 private EditText etPassword;
 public String username;
 private String password;
 String storedPassword;
 Context context=this;
 LoginDatabaseAdapter loginDataBaseAdapter;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     // create the instance of Databse
     loginDataBaseAdapter=new LoginDatabaseAdapter(getApplicationContext());
     etUserEmail = (EditText) findViewById(R.id.Email);
     etPassword = (EditText) findViewById(R.id.Password);
 }
 public void SignIN(View view) {
   try {
       loginDataBaseAdapter = loginDataBaseAdapter.open();
       username = etUserEmail.getText().toString();
       password = etPassword.getText().toString();
       if (username.equals("") || password.equals("")) {
          AlertDialog alertDialog = new AlertDialog.Builder(this).create();
          alertDialog.setTitle("ALERT!");
          alertDialog.setMessage("Fill All Fields");
          alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int which) {
          }
          });
          alertDialog.show();
       }
      // fetch the Password form database for respective user name
      if (!username.equals("")) {
          storedPassword = loginDataBaseAdapter.getSinlgeEntry(username);
         // check if the Stored password matches with Password entered by user
      if (password.equals(storedPassword)) {
         Intent intent1 = new Intent(MainActivity.this, DisplayInfoActivity.class);
         startActivity(intent1);
         // finish();
       }
      else
       {
         AlertDialog alertDialog = new AlertDialog.Builder(this).create();
         alertDialog.setTitle("ALERT!");
         alertDialog.setMessage("Incorrect Username OR Password");
         alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int which) {
       }
       });
       alertDialog.show();
       }
       }
       }
    catch (Exception ex)
      {
      Log.e("Error", "error login");
      }
 }
 public void SignUP(View view)
{
      Intent intent = new Intent(MainActivity.this, SignUp.class);
      startActivity(intent);
 }
 @Override
 protected void onDestroy()
{
     // TODO Auto-generated method stub
     super.onDestroy();
     // Close The Database
      loginDataBaseAdapter.close();
 }
}