package hr.foi.air.discountlocator.modules;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import hr.foi.air.core.DataPresenter;
import hr.foi.air.database.entities.Discount;
import hr.foi.air.database.entities.Store;
import hr.foi.air.discountlocator.R;
import hr.foi.air.discountlocator.recyclerview.ExpandableStoreItem;
import hr.foi.air.discountlocator.recyclerview.StoreRecyclerAdapter;

public class ListViewModule extends Fragment implements DataPresenter {
    @BindView(R.id.main_recycler)
    RecyclerView recyclerView;

    private boolean moduleReadyFlag = false;
    private boolean dataReadyFlag = false;

    private List<Store> stores;
    private List<Discount> discounts;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_list_view, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        ButterKnife.bind(this, view);

        moduleReadyFlag = true;
        tryToDisplayData();
    }

    public void displayData() {
        List<ExpandableStoreItem> storeItems = new ArrayList<>();
        for(Store s : stores)
            storeItems.add(new ExpandableStoreItem(s, discounts));

        recyclerView.setAdapter(new StoreRecyclerAdapter(getContext(), storeItems));
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
    }

    @Override
    public Drawable getIcon(Context context) {
        return context.getDrawable(android.R.drawable.ic_menu_agenda);
    }

    @Override
    public String getName(Context context) {
        return "List view";
    }

    @Override
    public Fragment getFragment() {
        return this;
    }

    @Override
    public void setData(List<Store> stores, List<Discount> discounts) {
        this.stores = stores;
        this.discounts = discounts;

        dataReadyFlag = true;
        tryToDisplayData();
    }

    private void tryToDisplayData() {
        if (moduleReadyFlag && dataReadyFlag){
            displayData();
        }
    }
}