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package de.danoeh.antennapod.fragment;
import android.content.Intent;
import android.os.Bundle;
import android.util.DisplayMetrics;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.ProgressBar;
import android.widget.TextView;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.activity.MainActivity;
import de.danoeh.antennapod.activity.OnlineFeedViewActivity;
import de.danoeh.antennapod.adapter.FeedDiscoverAdapter;
import de.danoeh.antennapod.discovery.ItunesTopListLoader;
import de.danoeh.antennapod.discovery.PodcastSearchResult;
import io.reactivex.disposables.Disposable;
import java.util.ArrayList;
import java.util.List;
public class QuickFeedDiscoveryFragment extends Fragment implements AdapterView.OnItemClickListener {
private static final String TAG = "FeedDiscoveryFragment";
private static final int NUM_SUGGESTIONS = 12;
private ProgressBar progressBar;
private Disposable disposable;
private FeedDiscoverAdapter adapter;
private GridView discoverGridLayout;
private TextView errorTextView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View root = inflater.inflate(R.layout.quick_feed_discovery, container, false);
View discoverMore = root.findViewById(R.id.discover_more);
discoverMore.setOnClickListener(v ->
((MainActivity) getActivity()).loadChildFragment(new ItunesSearchFragment()));
discoverGridLayout = root.findViewById(R.id.discover_grid);
progressBar = root.findViewById(R.id.discover_progress_bar);
errorTextView = root.findViewById(R.id.discover_error);
adapter = new FeedDiscoverAdapter((MainActivity) getActivity());
discoverGridLayout.setAdapter(adapter);
discoverGridLayout.setOnItemClickListener(this);
DisplayMetrics displayMetrics = getContext().getResources().getDisplayMetrics();
float screenWidthDp = displayMetrics.widthPixels / displayMetrics.density;
if (screenWidthDp > 600) {
discoverGridLayout.setNumColumns(6);
} else {
discoverGridLayout.setNumColumns(4);
}
// Fill with dummy elements to have a fixed height and
// prevent the UI elements below from jumping on slow connections
List<PodcastSearchResult> dummies = new ArrayList<>();
for (int i = 0; i < NUM_SUGGESTIONS; i++) {
dummies.add(PodcastSearchResult.dummy());
}
adapter.updateData(dummies);
loadToplist();
return root;
}
@Override
public void onDestroy() {
super.onDestroy();
if (disposable != null) {
disposable.dispose();
}
}
private void loadToplist() {
progressBar.setVisibility(View.VISIBLE);
discoverGridLayout.setVisibility(View.INVISIBLE);
errorTextView.setVisibility(View.GONE);
ItunesTopListLoader loader = new ItunesTopListLoader(getContext());
disposable = loader.loadToplist(NUM_SUGGESTIONS)
.subscribe(podcasts -> {
errorTextView.setVisibility(View.GONE);
progressBar.setVisibility(View.GONE);
discoverGridLayout.setVisibility(View.VISIBLE);
adapter.updateData(podcasts);
}, error -> {
Log.e(TAG, Log.getStackTraceString(error));
errorTextView.setText(error.getLocalizedMessage());
errorTextView.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.GONE);
discoverGridLayout.setVisibility(View.INVISIBLE);
});
}
@Override
public void onItemClick(AdapterView<?> parent, final View view, int position, long id) {
PodcastSearchResult podcast = adapter.getItem(position);
if (podcast.feedUrl == null) {
return;
}
view.setAlpha(0.5f);
ItunesTopListLoader loader = new ItunesTopListLoader(getContext());
disposable = loader.getFeedUrl(podcast)
.subscribe(feedUrl -> {
view.setAlpha(1f);
Intent intent = new Intent(getActivity(), OnlineFeedViewActivity.class);
intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, feedUrl);
intent.putExtra(OnlineFeedViewActivity.ARG_TITLE, getString(R.string.add_feed_label));
startActivity(intent);
}, error -> {
Log.e(TAG, Log.getStackTraceString(error));
view.setAlpha(1f);
String prefix = getString(R.string.error_msg_prefix);
new AlertDialog.Builder(getActivity())
.setMessage(prefix + " " + error.getMessage())
.setPositiveButton(android.R.string.ok, null)
.show();
});
}
}
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