NsoTab.java

package com.pennapps.labs.pennmobile;

import android.content.SharedPreferences;
import android.os.Bundle;
//import android.support.annotation.NonNull;
//import android.support.v7.preference.PreferenceManager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.pennapps.labs.pennmobile.adapters.NsoAdapter;

//import org.mcsoxford.rss.RSSItem;
//import org.mcsoxford.rss.RSSReader;
//import org.mcsoxford.rss.RSSReaderException;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import butterknife.ButterKnife;
import rx.Observable;
import rx.Subscriber;

/**
 * Created by Jason on 8/11/2016.
 */
public class NsoTab extends SearchFavoriteTab {

    private NsoAdapter adapter;

    private List<String> fullList; //List<RSSItem>

//    @Override
//    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//        super.onCreateView(inflater, container, savedInstanceState);
//        View v = inflater.inflate(R.layout.fragment_search_favorite_tab, container, false);
//        ButterKnife.bind(this, v);
//        mListView = (ListView) v.findViewById(android.R.id.list);
//        initList();
//        return v;
//    }

    @Override
    public void processQuery (String query) {
        super.processQuery(query);
        processNsoQuery(query);
    }

    private void processNsoQuery(final String query) {
        Observable<List<String>> obs = Observable.create(new Observable.OnSubscribe<List<String>>() { //List<String>
            @Override
            public void call(Subscriber<? super List<String>> subscriber) { //List<RSSItem>
                subscriber.onNext(getRSSFeed(query));
                subscriber.onCompleted();
            }
        });
        obs.subscribe(new Subscriber<List<String>>() { //List<RSSItem>
            @Override
            public void onCompleted() {
                if (adapter == null) {
                    no_results.setVisibility(View.VISIBLE);
                    mListView.setVisibility(View.GONE);
                } else {
                    mListView.setVisibility(View.VISIBLE);
                    mListView.setAdapter(adapter);
                    no_results.setVisibility(View.GONE);
                }
            }

            @Override
            public void onError(Throwable e) {
                Log.d("NSO", "observable error", e);
                no_results.setVisibility(View.VISIBLE);
                mListView.setVisibility(View.GONE);
            }

            @Override
            public void onNext(List<String> rssItems) { //List<RSSItem>
                if (rssItems.isEmpty()) {
                    adapter = null;
                } else {
//                    adapter = new NsoAdapter(mActivity, rssItems);
                }
            }
        });
    }

//    @NonNull
    private List<String> getRSSFeed(String query) { //List<RSSItem>
        return new LinkedList<>();
//        try {
//            List<RSSItem> items;
//            if (fullList == null) {
//                RSSReader reader = new RSSReader();
//                String uri = "http://api.pennlabs.org/nso";
//                items = reader.load(uri).getItems();
//                fullList = new ArrayList<>(items);
//            } else {
//                items = new ArrayList<>(fullList);
//            }
//            if (query.isEmpty()) {
//                return items;
//            }
//            List<RSSItem> answer = new LinkedList<>();
//            for (RSSItem item : items) {
//                if (item.getTitle().contains(query)) {
//                    answer.add(item);
//                }
//            }
//            return answer;
//        } catch (RSSReaderException e) {
//            Log.d("NSO", "error reading rss", e);
//            return new LinkedList<>();
//        }
    }


    @Override
    public void initList() {
//        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mActivity);
//        Set<String> starred = sp.getStringSet(getString(R.string.search_nso_star), new HashSet<String>());
//        if (loadingPanel.getVisibility() == View.VISIBLE) {
//            loadingPanel.setVisibility(View.GONE);
//        }
//        if (mListView.getVisibility() == View.GONE) {
//            mListView.setVisibility(View.VISIBLE);
//        }
//        if (no_results.getVisibility() == View.VISIBLE) {
//            no_results.setVisibility(View.GONE);
//        }
//        if (search_instructions.getVisibility() == View.VISIBLE) {
//            search_instructions.setVisibility(View.GONE);
//        }
//        List<RSSItem> items = getRSSFeed("");
//        if (fav) {
//            // need to improve runtime later (worst case O(n^2) smh
//            List<RSSItem> favItems = new LinkedList<>();
//            for (String s : starred) {
//                String details = sp.getString(s + getString(R.string.search_nso_star), "");
//                if (!details.isEmpty()) {
//                    for (RSSItem item : items) {
//                        if (item.getTitle().equals(details)) {
//                            favItems.add(item);
//                            break;
//                        }
//                    }
//                }
//            }
//            items = favItems;
//        }
//        adapter = new NsoAdapter(mActivity, items);
//        mListView.setAdapter(adapter);
//        mActivity.closeKeyboard();

    }

//    @Override
//    public void onActivityCreated(Bundle savedInstanceState) {
//        super.onActivityCreated(savedInstanceState);
//        if (fav) {
//            search_instructions.setText(getString(R.string.search_no_fav));
//        } else {
//            search_instructions.setText(getString(R.string.nso_instructions));
//        }
//    }
}