package com.example.kandydatpl;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
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.io.File;
import java.util.ArrayList;

public class TaskListActivity extends AppCompatActivity implements View.OnClickListener, AdapterView.OnItemClickListener {

    private EditText itemET;
    private Button btn;
    private ListView itemsList;
    private ArrayList<String> items;
    private ArrayAdapter<String> adapter;

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

        itemET = findViewById(R.id.item_edit_text);
        btn = findViewById(R.id.add_btn);
        btn.setOnClickListener(this);

        itemsList = findViewById(R.id.items_list);

        items = FileHelper.readData(this);

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

        itemsList.setOnItemClickListener(this);
    }


    public void onClickAdd(View view)
    {
        switch (view.getId())
        {
            case R.id.add_btn:
                String itemEntered = itemET.getText().toString();
                adapter.add(itemEntered);
                itemET.setText("");
                FileHelper.writeData(items, this);
                Toast.makeText(this, "Item Added!", Toast.LENGTH_SHORT).show();
                break;
        }
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        items.remove(position);
        adapter.notifyDataSetChanged();
        FileHelper.writeData(items, this);
        Toast.makeText(this, "Delete", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onClick(View v) {
        onClickAdd(v);
    }
}