package com.example.xinruigao.robinfood;

import android.os.Bundle;
import android.widget.ListView;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;

import java.util.ArrayList;

public class Home extends AppCompatActivity {

    ArrayList<Event> eventArrayList = new ArrayList<Event>();
    private DatabaseReference databaseRef;

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

        // Initialize activity variables
        ListView eventsListView;
        eventsListView = (ListView)findViewById(R.id.eventsListView);
        databaseRef = FirebaseDatabase.getInstance().getReference().child("events");

        // Retrieve data from Firebase
        databaseRef.addValueEventListener(new ValueEventListener() {
            String name, email, address, postalCode, contact;

            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                for (DataSnapshot keyId: dataSnapshot.getChildren()) {
                    if (keyId.child("accepted").equals(false)) {
                        Event retrievedEvent = dataSnapshot.getValue(Event.class);
                        eventArrayList.add(retrievedEvent);
                    }
                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {

            }
        });

        // Load ListView
        EventListAdapter adapter = new EventListAdapter(this, R.layout.event_adaptor_view_layout,
                eventArrayList);
        eventsListView.setAdapter(adapter);
    }

}