package com.lemenzo.gallery.albums;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.recyclerview.widget.RecyclerView;

import com.lemenzo.gallery.R;
import com.lemenzo.gallery.loader.ThumbnailLoader;
import com.lemenzo.gallery.model.Album;

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

public final class AlbumsAdapter extends RecyclerView.Adapter<AlbumsAdapter.Holder> {
    interface Listener { void open(Album album); }

    private final Context context;
    private final Listener listener;
    private final ThumbnailLoader loader;
    private final ArrayList<Album> data = new ArrayList<>();

    AlbumsAdapter(Context context, Listener listener) {
        this.context = context;
        this.listener = listener;
        loader = new ThumbnailLoader(context);
        setHasStableIds(true);
    }

    void submit(List<Album> albums) {
        data.clear();
        data.addAll(albums);
        notifyDataSetChanged();
    }


    @Override
    public long getItemId(int position) {
        return data.get(position).bucketId;
    }

    @Override
    public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
        return new Holder(LayoutInflater.from(context).inflate(R.layout.item_album, parent, false));
    }

    @Override
    public void onBindViewHolder(Holder holder, int position) {
        Album album = data.get(position);
        holder.name.setText(album.name);
        holder.count.setText(context.getString(R.string.items_count, album.itemCount));
        loader.load(holder.cover, album.coverUri, 420);
        holder.itemView.setContentDescription(context.getString(R.string.album_accessibility, album.name, album.itemCount));
        holder.cover.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
        holder.itemView.setOnClickListener(v -> listener.open(album));
    }

    @Override
    public void onViewRecycled(Holder holder) {
        loader.cancel(holder.cover);
        holder.itemView.setOnClickListener(null);
        super.onViewRecycled(holder);
    }

    @Override
    public int getItemCount() {
        return data.size();
    }

    void close() {
        loader.close();
    }

    static final class Holder extends RecyclerView.ViewHolder {
        final ImageView cover;
        final TextView name;
        final TextView count;

        Holder(View view) {
            super(view);
            cover = view.findViewById(R.id.album_cover);
            name = view.findViewById(R.id.album_name);
            count = view.findViewById(R.id.album_count);
        }
    }
}