package de.danoeh.antennapod.activity;

import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import de.danoeh.antennapod.BuildConfig;
import de.danoeh.antennapod.asynctask.OpmlFeedQueuer;
import de.danoeh.antennapod.asynctask.OpmlImportWorker;
import de.danoeh.antennapod.core.opml.OpmlElement;

import java.io.Reader;
import java.util.ArrayList;

/**
 * Base activity for Opml Import - e.g. with code what to do afterwards
 * */
public class OpmlImportBaseActivity extends ActionBarActivity {

    private static final String TAG = "OpmlImportBaseActivity";
    private OpmlImportWorker importWorker;

    /**
	 * Handles the choices made by the user in the OpmlFeedChooserActivity and
	 * starts the OpmlFeedQueuer if necessary.
	 */
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (BuildConfig.DEBUG)
			Log.d(TAG, "Received result");
		if (resultCode == RESULT_CANCELED) {
			if (BuildConfig.DEBUG)
				Log.d(TAG, "Activity was cancelled");
            if (finishWhenCanceled())
                finish();
		} else {
			int[] selected = data
					.getIntArrayExtra(OpmlFeedChooserActivity.EXTRA_SELECTED_ITEMS);
			if (selected != null && selected.length > 0) {
				OpmlFeedQueuer queuer = new OpmlFeedQueuer(this, selected) {

					@Override
					protected void onPostExecute(Void result) {
						super.onPostExecute(result);
						Intent intent = new Intent(OpmlImportBaseActivity.this, MainActivity.class);
						intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
								| Intent.FLAG_ACTIVITY_NEW_TASK);
						startActivity(intent);
					}

				};
				queuer.executeAsync();
			} else {
				if (BuildConfig.DEBUG)
					Log.d(TAG, "No items were selected");
			}
		}
	}

    /** Starts the import process. */
    protected void startImport(Reader reader) {

        if (reader != null) {
            importWorker = new OpmlImportWorker(this, reader) {

                @Override
                protected void onPostExecute(ArrayList<OpmlElement> result) {
                    super.onPostExecute(result);
                    if (result != null) {
                        if (BuildConfig.DEBUG)
                            Log.d(TAG, "Parsing was successful");
                        OpmlImportHolder.setReadElements(result);
                        startActivityForResult(new Intent(
                                OpmlImportBaseActivity.this,
                                OpmlFeedChooserActivity.class), 0);
                    } else {
                        if (BuildConfig.DEBUG)
                            Log.d(TAG, "Parser error occurred");
                    }
                }
            };
            importWorker.executeAsync();
        }
    }

    protected boolean finishWhenCanceled() {
        return false;
    }


}