package de.danoeh.antennapod.activity;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;

import de.danoeh.antennapod.AppConfig;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.asynctask.ImageLoader;
import de.danoeh.antennapod.dialog.DownloadRequestErrorDialogCreator;
import de.danoeh.antennapod.feed.Feed;
import de.danoeh.antennapod.preferences.UserPreferences;
import de.danoeh.antennapod.storage.DBReader;
import de.danoeh.antennapod.storage.DownloadRequestException;
import de.danoeh.antennapod.util.LangUtils;
import de.danoeh.antennapod.util.menuhandler.FeedMenuHandler;

/** Displays information about a feed. */
public class FeedInfoActivity extends ActionBarActivity {
	private static final String TAG = "FeedInfoActivity";

	public static final String EXTRA_FEED_ID = "de.danoeh.antennapod.extra.feedId";

	private Feed feed;

	private ImageView imgvCover;
	private TextView txtvTitle;
	private TextView txtvDescription;
	private TextView txtvLanguage;
	private TextView txtvAuthor;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		setTheme(UserPreferences.getTheme());
		super.onCreate(savedInstanceState);
		setContentView(R.layout.feedinfo);
		getSupportActionBar().setDisplayHomeAsUpEnabled(true);
		long feedId = getIntent().getLongExtra(EXTRA_FEED_ID, -1);
		
		AsyncTask<Long, Void, Feed> loadTask = new AsyncTask<Long, Void, Feed>() {

			@Override
			protected Feed doInBackground(Long... params) {
				return DBReader.getFeed(FeedInfoActivity.this, params[0]);
			}

			@Override
			protected void onPostExecute(Feed result) {
				super.onPostExecute(result);
				if (result != null) {
					feed = result;
					if (feed != null) {
						if (AppConfig.DEBUG)
							Log.d(TAG, "Language is " + feed.getLanguage());
						if (AppConfig.DEBUG)
							Log.d(TAG, "Author is " + feed.getAuthor());
						imgvCover = (ImageView) findViewById(R.id.imgvCover);
						txtvTitle = (TextView) findViewById(R.id.txtvTitle);
						txtvDescription = (TextView) findViewById(R.id.txtvDescription);
						txtvLanguage = (TextView) findViewById(R.id.txtvLanguage);
						txtvAuthor = (TextView) findViewById(R.id.txtvAuthor);
						imgvCover.post(new Runnable() {

							@Override
							public void run() {
								ImageLoader.getInstance().loadThumbnailBitmap(
										feed.getImage(), imgvCover);
							}
						});

						txtvTitle.setText(feed.getTitle());
						txtvDescription.setText(feed.getDescription());
						if (feed.getAuthor() != null) {
							txtvAuthor.setText(feed.getAuthor());
						}
						if (feed.getLanguage() != null) {
							txtvLanguage.setText(LangUtils
									.getLanguageString(feed.getLanguage()));
						}
                        supportInvalidateOptionsMenu();
					}
				} else {
					Log.e(TAG, "Activity was started with invalid arguments");
				}
			}
		};
		loadTask.execute(feedId);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
        if (feed != null) {
            MenuInflater inflater = new MenuInflater(this);
            inflater.inflate(R.menu.feedinfo, menu);
            return true;
        } else {
            return false;
        }
	}

	@Override
	public boolean onPrepareOptionsMenu(Menu menu) {
		menu.findItem(R.id.support_item).setVisible(
				feed.getPaymentLink() != null);
		menu.findItem(R.id.share_link_item).setVisible(feed.getLink() != null);

		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case android.R.id.home:
			finish();
			return true;
		default:
			try {
				return FeedMenuHandler.onOptionsItemClicked(this, item, feed);
			} catch (DownloadRequestException e) {
				e.printStackTrace();
				DownloadRequestErrorDialogCreator.newRequestErrorDialog(this,
						e.getMessage());
			}
			return super.onOptionsItemSelected(item);
		}
	}
}