package de.danoeh.antennapod.adapter.itunes;

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

import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.List;

import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.MainActivity;

public class ItunesAdapter extends ArrayAdapter<ItunesAdapter.Podcast> {
    /**
     * Related Context
     */
    private final Context context;

    /**
     * List holding the podcasts found in the search
     */
    private final List<Podcast> data;

    /**
     * Constructor.
     *
     * @param context Related context
     * @param objects Search result
     */
    public ItunesAdapter(Context context, List<Podcast> objects) {
        super(context, 0, objects);
        this.data = objects;
        this.context = context;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        //Current podcast
        Podcast podcast = data.get(position);

        //ViewHolder
        PodcastViewHolder viewHolder;

        //Resulting view
        View view;

        //Handle view holder stuff
        if(convertView == null) {
            view = ((MainActivity) context).getLayoutInflater()
                    .inflate(R.layout.itunes_podcast_listitem, parent, false);
            viewHolder = new PodcastViewHolder(view);
            view.setTag(viewHolder);
        } else {
            view = convertView;
            viewHolder = (PodcastViewHolder) view.getTag();
        }

        //Set the title
        viewHolder.titleView.setText(podcast.title);

        //Update the empty imageView with the image from the feed
        Glide.with(context)
                .load(podcast.imageUrl)
                .placeholder(R.color.light_gray)
                .diskCacheStrategy(DiskCacheStrategy.NONE)
                .fitCenter()
                .dontAnimate()
                .into(viewHolder.coverView);

        //Feed the grid view
        return view;
    }

    /**
     * View holder object for the GridView
     */
    class PodcastViewHolder {

        /**
         * ImageView holding the Podcast image
         */
        public final ImageView coverView;

        /**
         * TextView holding the Podcast title
         */
        public final TextView titleView;


        /**
         * Constructor
         * @param view GridView cell
         */
        PodcastViewHolder(View view){
            coverView = (ImageView) view.findViewById(R.id.imgvCover);
            titleView = (TextView) view.findViewById(R.id.txtvTitle);
        }
    }

    /**
     * Represents an individual podcast on the iTunes Store.
     */
    public static class Podcast { //TODO: Move this out eventually. Possibly to core.itunes.model

        /**
         * The name of the podcast
         */
        public final String title;

        /**
         * URL of the podcast image
         */
        public final String imageUrl;
        /**
         * URL of the podcast feed
         */
        public final String feedUrl;

        /**
         * Constructor.
         *
         * @param json object holding the podcast information
         * @throws JSONException
         */
        public Podcast(JSONObject json) throws JSONException {
            title = json.getString("collectionName");
            imageUrl = json.getString("artworkUrl100");
            feedUrl = json.getString("feedUrl");
        }
    }
}