package com.example.mario.sharedprefs;

import android.content.Context;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import java.util.HashSet;
import java.util.Set;

public class MainActivity extends AppCompatActivity {

    User user = null;


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

        if(user != null){
            Toast.makeText(this, "User: " + user.username + ", " + user.password + ", " + user.set, Toast.LENGTH_SHORT).show();
        }

    }

    public void izbrisiLozinku(){
        SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences("userSettings", Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        //editor.remove("password");
        editor.clear();
        editor.apply();
    }

    public void spremiPodatke(){
        SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences("userSettings", 0);
        SharedPreferences.Editor editor = sharedPreferences.edit();

        Set<String> set = new HashSet<>();

        set.add("Jedan");
        set.add("3");
        set.add("4");
        set.add("5");
        set.add("6");



        editor.putString("username", "Mario");
        editor.putString("password", "12345");
        editor.putStringSet("set", set);

        editor.commit();

        Log.d("SharedPrefs", "Data saved!");
    }

    public void ucitajPodatke(){
        SharedPreferences sharedPreferences = getSharedPreferences("userSettings", Context.MODE_PRIVATE);

        String username = sharedPreferences.getString("username", null);
        String password = sharedPreferences.getString("password", null);
        Set<String> set = sharedPreferences.getStringSet("set", null);

       if(username != null && password != null){
           user = new User(username, password, set);
       }

       System.out.println("Korisnik: " + username + " " + password + " " + set);
    }

    public class User {
        String username;
        String password;
        Set set;

        public User(String username, String password, Set set){
            this.username = username;
            this.password = password;
            this.set = set;
        }
    }
}