package de.danoeh.antennapod.activity;

import android.annotation.SuppressLint;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.TypedArray;
import android.media.AudioManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.util.Log;

import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.Window;
import de.danoeh.antennapod.AppConfig;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.asynctask.FeedRemover;
import de.danoeh.antennapod.dialog.ConfirmationDialog;
import de.danoeh.antennapod.dialog.DownloadRequestErrorDialogCreator;
import de.danoeh.antennapod.feed.Feed;
import de.danoeh.antennapod.fragment.ExternalPlayerFragment;
import de.danoeh.antennapod.fragment.FeedlistFragment;
import de.danoeh.antennapod.fragment.ItemlistFragment;
import de.danoeh.antennapod.preferences.UserPreferences;
import de.danoeh.antennapod.storage.DBReader;
import de.danoeh.antennapod.storage.DownloadRequestException;
import de.danoeh.antennapod.util.StorageUtils;
import de.danoeh.antennapod.util.menuhandler.FeedMenuHandler;

/**
 * Displays a List of FeedItems
 */
public class FeedItemlistActivity extends ActionBarActivity {
    private static final String TAG = "FeedItemlistActivity";

    /**
     * The feed which the activity displays
     */
    private Feed feed;
    private ItemlistFragment filf;
    private ExternalPlayerFragment externalPlayerFragment;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        setTheme(UserPreferences.getTheme());
        super.onCreate(savedInstanceState);
        StorageUtils.checkStorageAvailability(this);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        setContentView(R.layout.feeditemlist_activity);
        setVolumeControlStream(AudioManager.STREAM_MUSIC);

        long feedId = getIntent().getLongExtra(
                FeedlistFragment.EXTRA_SELECTED_FEED, -1);
        if (feedId == -1) {
            Log.e(TAG, "Received invalid feed selection.");
        } else {
            loadData(feedId);
        }

    }

    private void loadData(long id) {
        AsyncTask<Long, Void, Feed> loadTask = new AsyncTask<Long, Void, Feed>() {

            @Override
            protected Feed doInBackground(Long... longs) {
                if (AppConfig.DEBUG)
                    Log.d(TAG, "Loading feed data in background");
                return DBReader.getFeed(FeedItemlistActivity.this, longs[0]);
            }

            @Override
            protected void onPostExecute(Feed result) {
                super.onPostExecute(result);
                if (result != null) {
                    if (AppConfig.DEBUG) Log.d(TAG, "Finished loading feed data");
                    feed = result;
                    setTitle(feed.getTitle());

                    FragmentManager fragmentManager = getSupportFragmentManager();
                    FragmentTransaction fT = fragmentManager.beginTransaction();

                    filf = ItemlistFragment.newInstance(feed.getId());
                    fT.replace(R.id.feeditemlistFragment, filf);

                    externalPlayerFragment = new ExternalPlayerFragment();
                    fT.replace(R.id.playerFragment, externalPlayerFragment);
                    fT.commit();
                    supportInvalidateOptionsMenu();
                } else {
                    Log.e(TAG, "Error: Feed was null");
                }
            }
        };
        loadTask.execute(id);
    }

    @Override
    protected void onResume() {
        super.onResume();
        StorageUtils.checkStorageAvailability(this);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        if (feed != null) {
            TypedArray drawables = obtainStyledAttributes(new int[]{R.attr.action_search});
            MenuItemCompat.setShowAsAction(menu.add(Menu.NONE, R.id.search_item, Menu.NONE, R.string.search_label)
                    .setIcon(drawables.getDrawable(0)),
                    MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW);
            MenuItemCompat.setActionView(menu.findItem(R.id.search_item), new SearchView(this));

            SearchManager searchManager =
                    (SearchManager) getSystemService(Context.SEARCH_SERVICE);
            SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.search_item));


            searchView.setIconifiedByDefault(true);

            searchView.setSearchableInfo(
                    searchManager.getSearchableInfo(getComponentName()));
            return FeedMenuHandler
                    .onCreateOptionsMenu(getMenuInflater(), menu);
        } else {
            return false;
        }
    }

    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        return FeedMenuHandler.onPrepareOptionsMenu(menu, feed);
    }

    @SuppressLint("NewApi")
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        try {
            if (FeedMenuHandler.onOptionsItemClicked(this, item, feed)) {
                filf.getListAdapter().notifyDataSetChanged();
            } else {
                switch (item.getItemId()) {
                    case R.id.remove_item:
                        final FeedRemover remover = new FeedRemover(
                                FeedItemlistActivity.this, feed) {
                            @Override
                            protected void onPostExecute(Void result) {
                                super.onPostExecute(result);
                                finish();
                            }
                        };
                        ConfirmationDialog conDialog = new ConfirmationDialog(this,
                                R.string.remove_feed_label,
                                R.string.feed_delete_confirmation_msg) {

                            @Override
                            public void onConfirmButtonPressed(
                                    DialogInterface dialog) {
                                dialog.dismiss();
                                remover.executeAsync();
                            }
                        };
                        conDialog.createNewDialog().show();
                        break;
                    case android.R.id.home:
                        Intent intent = new Intent(this, MainActivity.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        startActivity(intent);
                        break;
                }
            }
        } catch (DownloadRequestException e) {
            e.printStackTrace();
            DownloadRequestErrorDialogCreator.newRequestErrorDialog(this,
                    e.getMessage());
        }
        return true;
    }

    @Override
    public boolean onSearchRequested() {
        if (feed != null) {
            Bundle bundle = new Bundle();
            bundle.putLong(SearchActivity.EXTRA_FEED_ID, feed.getId());
            startSearch(null, false, bundle, false);
            return true;
        } else {
            return false;
        }
    }

    @Override
    public void startActivity(Intent intent) {
        if (intent.getAction() != null &&
                intent.getAction().equals(Intent.ACTION_SEARCH)) {
            addSearchInformation(intent);
        }
        super.startActivity(intent);
    }

    private void addSearchInformation(Intent startIntent) {
        startIntent.putExtra(SearchActivity.EXTRA_FEED_ID, feed.getId());
    }

}