/*
 * 				Firetweet - Twitter client for Android
 * 
 *  Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.getlantern.firetweet.preference;

import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.database.Cursor;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.util.AttributeSet;

import org.apache.commons.lang3.ArrayUtils;
import org.getlantern.firetweet.R;

public class RingtonePreference extends AutoInvalidateListPreference {

    private Ringtone[] mRingtones;
    private String[] mEntries, mValues;

    private int mSelectedItem;

    public RingtonePreference(final Context context, final AttributeSet attrs) {
        super(context, attrs);
    }

    public int getSelectedItem() {
        return mSelectedItem;
    }

    public Ringtone getSelectedRingtone() {
        return mRingtones[mSelectedItem];
    }

    public void setSelectedItem(final int selected) {
        mSelectedItem = selected >= 0 && selected < mValues.length ? selected : 0;
    }

    @Override
    protected void onDialogClosed(final boolean positiveResult) {
        final Ringtone ringtone = getSelectedRingtone();
        if (ringtone != null && ringtone.isPlaying()) {
            ringtone.stop();
        }
        if (positiveResult && mSelectedItem >= 0 && mSelectedItem < mValues.length) {
            if (callChangeListener(mValues[mSelectedItem])) {
                persistString(mValues[mSelectedItem]);
            }
        }
    }

    @Override
    protected void onPrepareDialogBuilder(final Builder builder) {
        loadRingtones(getContext());
        setSelectedItem(ArrayUtils.indexOf(mValues, getPersistedString(null)));
        builder.setSingleChoiceItems(getEntries(), getSelectedItem(), new OnClickListener() {
            @Override
            public void onClick(final DialogInterface dialog, final int which) {
                setSelectedItem(which);
                final Ringtone ringtone = getSelectedRingtone();
                if (ringtone.isPlaying()) {
                    ringtone.stop();
                }
                ringtone.play();
            }
        });
    }

    private void loadRingtones(final Context context) {
        final RingtoneManager manager = new RingtoneManager(context);
        manager.setType(RingtoneManager.TYPE_NOTIFICATION);
        final Cursor cur = manager.getCursor();
        cur.moveToFirst();
        final int count = cur.getCount();
        mRingtones = new Ringtone[count + 1];
        mEntries = new String[count + 1];
        mValues = new String[count + 1];
        final Uri default_uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        final Ringtone default_ringtone = RingtoneManager.getRingtone(context, default_uri);
        mRingtones[0] = default_ringtone;
        mEntries[0] = context.getString(R.string.default_ringtone);
        mValues[0] = default_uri.toString();
        for (int i = 0; i < count; i++) {
            final Ringtone ringtone = manager.getRingtone(i);
            mRingtones[i + 1] = ringtone;
            mEntries[i + 1] = ringtone.getTitle(context);
            mValues[i + 1] = manager.getRingtoneUri(i).toString();
        }
        setEntries(mEntries);
        setEntryValues(mValues);
        cur.close();
    }

}