package com.example.gp.menjacnica2;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;


public class MainActivity extends ActionBarActivity {

    ArrayList<String> izbor = new ArrayList<String>();

    int rezim = -1;
    final int DINARE_U_EVRE = 0;
    final int EVRE_U_DINARE = 1;


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

        izbor.add("dinari u eure");
        izbor.add("euri u dinare");

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, izbor);

        final ListView lista = (ListView) findViewById(R.id.listView);
        lista.setAdapter(adapter);

        lista.setOnItemClickListener(new AdapterView.OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position,
                                    long id) {
                // NA OSNOVU POSITION-A mogu da izvucem
                // vrednost iz ili ArrayList ili iz samog ListView
                String izabrano = izbor.get(position);
                String izabranoIsto = (String) lista.getItemAtPosition(position);

                rezim = position;

                Toast.makeText(getApplicationContext(), "Izabrali ste: " + izabrano, Toast.LENGTH_LONG).show();


            }
        });

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public void mojaMetoda(View referencaNaDugme) {

        ListView lista = (ListView) findViewById(R.id.listView);

        if( rezim == -1 ){ // -1 znaci da nista nije selektovano
            Toast.makeText(getApplicationContext(), "NIJE NISTA SELEKTOVANO!", Toast.LENGTH_LONG).show();
        }else if( rezim == DINARE_U_EVRE ){

            EditText dinari;

            dinari = (EditText) findViewById(R.id.editText);
            String unosD = dinari.getText().toString();
            int x = Integer.parseInt(unosD);
            int y = x * 120;
            String s = "" + y;

            EditText euri;

            euri = (EditText) findViewById(R.id.editText2);
            euri.setText(s);

        }else {

            EditText euri;

            euri = (EditText) findViewById(R.id.editText);
            String unosE = euri.getText().toString();
            int x = Integer.parseInt(unosE);
            int y = x / 120;
            String s = "" + y;

            EditText dinari;

            dinari = (EditText) findViewById(R.id.editText2);
            dinari.setText(s);
        }
        Button dugme = (Button) referencaNaDugme;
    }
}