// DogArrayList Example
// Source code file: MainActivity.java

package it372.smith.savedogarraylist;
import android.os.Bundle;
import android.widget.Button;
import android.widget.TextView;
import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    // Declare instance variables.
    ArrayList<Dog> dogs;
    Button btn1, btn2, btn3, btn4;
    TextView tv;

    // onCreate fires when app is first created, or
    // recreated after being destroyed when app is rotated.
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Set activity_main.xml as startup activity.
        setContentView(R.layout.activity_main);

        // Create objects for Spinner and button widgets.
        btn1 = findViewById(R.id.button1);
        btn2 = findViewById(R.id.button2);
        btn3 = findViewById(R.id.button3);
        btn4 = findViewById(R.id.button4);
        tv = findViewById(R.id.textView);

        // If bundle is not null, restore arraylist from
        // bundle. Otherwise instantiate empty arraylist.
        if (savedInstanceState != null) {
            dogs = (ArrayList<Dog>)
                savedInstanceState.getSerializable("arrlist");
        }
        else {
            dogs = new ArrayList<Dog>( );
        }

        // OnClickListener for button1; addd Dog1 information to arraylist.
        btn1.setOnClickListener( v -> {
            Dog d = new Dog("Coco", "Chihuahua", 4);
            dogs.add(d);
        });

        // OnClickListener for button2; addd Dog2 information to arraylist.
        btn2.setOnClickListener( v -> {
            Dog d = new Dog("Puffy", "Wheaten Terrior", 8);
            dogs.add(d);
        });

        // OnClickListener for button2; addd Dog2 information to arraylist.
        btn3.setOnClickListener( v -> {
            Dog d = new Dog("Bentley", "Bernese Mountain Dog", 6);
            dogs.add(d);
        });

        btn4.setOnClickListener( v -> {
            String output = "";
            for(Dog d : dogs) {
                output += d.toString( ) + "\n";
            }
            tv.setText(output);
        });
    }

    // Immediately before app is destroyed because emulator
    // is rotated, save the arraylist in a bundle.
    public void onSaveInstanceState(Bundle savedInstanceState) {
        super.onSaveInstanceState(savedInstanceState);
        savedInstanceState.putSerializable("arrlist", dogs);
    }
}