Integrate fyyd podcast search engine

3 files changed, 232 insertions, 31 deletions

diff --git a/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java b/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java
index e9756b467..e381b4651 100644
--- a/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java
+++ b/app/src/main/java/de/danoeh/antennapod/adapter/itunes/ItunesAdapter.java
@@ -1,6 +1,7 @@
 package de.danoeh.antennapod.adapter.itunes;
 
 import android.content.Context;
+import android.support.annotation.NonNull;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
@@ -18,6 +19,7 @@ import java.util.List;
 
 import de.danoeh.antennapod.R;
 import de.danoeh.antennapod.activity.MainActivity;
+import de.mfietz.fyydlin.SearchHit;
 
 public class ItunesAdapter extends ArrayAdapter<ItunesAdapter.Podcast> {
     /**
@@ -42,8 +44,9 @@ public class ItunesAdapter extends ArrayAdapter<ItunesAdapter.Podcast> {
         this.context = context;
     }
 
+    @NonNull
     @Override
-    public View getView(int position, View convertView, ViewGroup parent) {
+    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
         //Current podcast
         Podcast podcast = data.get(position);
 
@@ -87,35 +90,6 @@ public class ItunesAdapter extends ArrayAdapter<ItunesAdapter.Podcast> {
     }
 
     /**
-     * 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;
-
-        public final TextView urlView;
-
-
-        /**
-         * Constructor
-         * @param view GridView cell
-         */
-        PodcastViewHolder(View view){
-            coverView = (ImageView) view.findViewById(R.id.imgvCover);
-            titleView = (TextView) view.findViewById(R.id.txtvTitle);
-            urlView = (TextView) view.findViewById(R.id.txtvUrl);
-        }
-    }
-
-    /**
      * Represents an individual podcast on the iTunes Store.
      */
     public static class Podcast { //TODO: Move this out eventually. Possibly to core.itunes.model
@@ -154,6 +128,10 @@ public class ItunesAdapter extends ArrayAdapter<ItunesAdapter.Podcast> {
             return new Podcast(title, imageUrl, feedUrl);
         }
 
+        public static Podcast fromSearch(SearchHit searchHit) {
+            return new Podcast(searchHit.getTitle(), searchHit.getImageUrl(), searchHit.getXmlUrl());
+        }
+
         /**
          * Constructs a Podcast instance from iTunes toplist entry
          *
@@ -177,4 +155,33 @@ public class ItunesAdapter extends ArrayAdapter<ItunesAdapter.Podcast> {
         }
 
     }
+
+    /**
+     * View holder object for the GridView
+     */
+    class PodcastViewHolder {
+
+        /**
+         * ImageView holding the Podcast image
+         */
+        final ImageView coverView;
+
+        /**
+         * TextView holding the Podcast title
+         */
+        final TextView titleView;
+
+        final TextView urlView;
+
+
+        /**
+         * Constructor
+         * @param view GridView cell
+         */
+        PodcastViewHolder(View view){
+            coverView = (ImageView) view.findViewById(R.id.imgvCover);
+            titleView = (TextView) view.findViewById(R.id.txtvTitle);
+            urlView = (TextView) view.findViewById(R.id.txtvUrl);
+        }
+    }
 }
diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java
index 45364ca07..f14ebbdaf 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/AddFeedFragment.java
@@ -39,10 +39,11 @@ public class AddFeedFragment extends Fragment {
             etxtFeedurl.setText(args.getString(ARG_FEED_URL));
         }
 
+        Button butSearchITunes = (Button) root.findViewById(R.id.butSearchItunes);
         Button butBrowserGpoddernet = (Button) root.findViewById(R.id.butBrowseGpoddernet);
+        Button butSearchFyyd = (Button) root.findViewById(R.id.butSearchFyyd);
         Button butOpmlImport = (Button) root.findViewById(R.id.butOpmlImport);
         Button butConfirm = (Button) root.findViewById(R.id.butConfirm);
-        Button butSearchITunes = (Button) root.findViewById(R.id.butSearchItunes);
 
         final MainActivity activity = (MainActivity) getActivity();
         activity.getSupportActionBar().setTitle(R.string.add_feed_label);
@@ -51,6 +52,8 @@ public class AddFeedFragment extends Fragment {
 
         butBrowserGpoddernet.setOnClickListener(v -> activity.loadChildFragment(new GpodnetMainFragment()));
 
+        butSearchFyyd.setOnClickListener(v -> activity.loadChildFragment(new FyydSearchFragment()));
+
         butOpmlImport.setOnClickListener(v -> startActivity(new Intent(getActivity(),
                 OpmlImportFromPathActivity.class)));
 
diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/FyydSearchFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/FyydSearchFragment.java
new file mode 100644
index 000000000..7fcf9c93d
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/FyydSearchFragment.java
@@ -0,0 +1,191 @@
+package de.danoeh.antennapod.fragment;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.view.MenuItemCompat;
+import android.support.v7.widget.SearchView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.GridView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.activity.OnlineFeedViewActivity;
+import de.danoeh.antennapod.adapter.itunes.ItunesAdapter;
+import de.danoeh.antennapod.menuhandler.MenuItemUtils;
+import de.mfietz.fyydlin.FyydClient;
+import de.mfietz.fyydlin.FyydResponse;
+import de.mfietz.fyydlin.SearchHit;
+import rx.Subscription;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.schedulers.Schedulers;
+
+import static de.danoeh.antennapod.adapter.itunes.ItunesAdapter.Podcast;
+import static java.util.Collections.emptyList;
+
+public class FyydSearchFragment extends Fragment {
+
+    private static final String TAG = "FyydSearchFragment";
+
+    /**
+     * Adapter responsible with the search results
+     */
+    private ItunesAdapter adapter;
+    private GridView gridView;
+    private ProgressBar progressBar;
+    private TextView txtvError;
+    private Button butRetry;
+    private TextView txtvEmpty;
+
+    private FyydClient client = new FyydClient();
+
+    /**
+     * List of podcasts retreived from the search
+     */
+    private List<Podcast> searchResults;
+    private Subscription subscription;
+
+    /**
+     * Constructor
+     */
+    public FyydSearchFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View root = inflater.inflate(R.layout.fragment_itunes_search, container, false);
+        gridView = (GridView) root.findViewById(R.id.gridView);
+        adapter = new ItunesAdapter(getActivity(), new ArrayList<>());
+        gridView.setAdapter(adapter);
+
+        //Show information about the podcast when the list item is clicked
+        gridView.setOnItemClickListener((parent, view1, position, id) -> {
+            Podcast podcast = searchResults.get(position);
+            Intent intent = new Intent(getActivity(), OnlineFeedViewActivity.class);
+            intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, podcast.feedUrl);
+            intent.putExtra(OnlineFeedViewActivity.ARG_TITLE, podcast.title);
+            startActivity(intent);
+        });
+        progressBar = (ProgressBar) root.findViewById(R.id.progressBar);
+        txtvError = (TextView) root.findViewById(R.id.txtvError);
+        butRetry = (Button) root.findViewById(R.id.butRetry);
+        txtvEmpty = (TextView) root.findViewById(android.R.id.empty);
+
+        return root;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (subscription != null) {
+            subscription.unsubscribe();
+        }
+        adapter = null;
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.itunes_search, menu);
+        MenuItem searchItem = menu.findItem(R.id.action_search);
+        final SearchView sv = (SearchView) MenuItemCompat.getActionView(searchItem);
+        MenuItemUtils.adjustTextColor(getActivity(), sv);
+        sv.setQueryHint(getString(R.string.search_fyyd_label));
+        sv.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
+            @Override
+            public boolean onQueryTextSubmit(String s) {
+                sv.clearFocus();
+                search(s);
+                return true;
+            }
+
+            @Override
+            public boolean onQueryTextChange(String s) {
+                return false;
+            }
+        });
+        MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
+            @Override
+            public boolean onMenuItemActionExpand(MenuItem item) {
+                return true;
+            }
+
+            @Override
+            public boolean onMenuItemActionCollapse(MenuItem item) {
+                getActivity().getSupportFragmentManager().popBackStack();
+                return true;
+            }
+        });
+        MenuItemCompat.expandActionView(searchItem);
+    }
+
+    private void search(String query) {
+        if (subscription != null) {
+            subscription.unsubscribe();
+        }
+        showOnlyProgressBar();
+        subscription =  client.searchPodcasts(query)
+                .subscribeOn(Schedulers.newThread())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(result -> {
+                    progressBar.setVisibility(View.GONE);
+                    processSearchResult(result);
+                }, error -> {
+                    Log.e(TAG, Log.getStackTraceString(error));
+                    progressBar.setVisibility(View.GONE);
+                    txtvError.setText(error.toString());
+                    txtvError.setVisibility(View.VISIBLE);
+                    butRetry.setOnClickListener(v -> search(query));
+                    butRetry.setVisibility(View.VISIBLE);
+                });
+    }
+
+    private void showOnlyProgressBar() {
+        gridView.setVisibility(View.GONE);
+        txtvError.setVisibility(View.GONE);
+        butRetry.setVisibility(View.GONE);
+        txtvEmpty.setVisibility(View.GONE);
+        progressBar.setVisibility(View.VISIBLE);
+    }
+
+    void processSearchResult(FyydResponse response) {
+        adapter.clear();
+        if (!response.getData().isEmpty()) {
+            adapter.clear();
+            searchResults = new ArrayList<>();
+            for (SearchHit searchHit : response.getData().values()) {
+                Podcast podcast = Podcast.fromSearch(searchHit);
+                searchResults.add(podcast);
+            }
+        } else {
+            searchResults = emptyList();
+        }
+        for(Podcast podcast : searchResults) {
+            adapter.add(podcast);
+        }
+        adapter.notifyDataSetInvalidated();
+        gridView.setVisibility(!searchResults.isEmpty() ? View.VISIBLE : View.GONE);
+        txtvEmpty.setVisibility(searchResults.isEmpty() ? View.VISIBLE : View.GONE);
+    }
+
+}