/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package dk.dr.radio.vaekning;

import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.preference.ListPreference;
import android.util.AttributeSet;

import java.text.DateFormatSymbols;
import java.util.Calendar;

public class RepeatPreference extends ListPreference {
  // Initial value that can be set with the values saved in the database.
  private Alarm.DaysOfWeek mDaysOfWeek = new Alarm.DaysOfWeek(0);
  // New value that will be set if a positive result comes back from the
  // dialog.
  private Alarm.DaysOfWeek mNewDaysOfWeek = new Alarm.DaysOfWeek(0);

  public RepeatPreference(Context context, AttributeSet attrs) {
    super(context, attrs);

    String[] weekdays = new DateFormatSymbols().getWeekdays();
    String[] values = new String[]{
        weekdays[Calendar.MONDAY],
        weekdays[Calendar.TUESDAY],
        weekdays[Calendar.WEDNESDAY],
        weekdays[Calendar.THURSDAY],
        weekdays[Calendar.FRIDAY],
        weekdays[Calendar.SATURDAY],
        weekdays[Calendar.SUNDAY],};
    setEntries(values);
    setEntryValues(values);
  }

  @Override
  protected void onDialogClosed(boolean positiveResult) {
    if (positiveResult) {
      mDaysOfWeek.set(mNewDaysOfWeek);
      setSummary(mDaysOfWeek.toString(getContext(), true));
      callChangeListener(mDaysOfWeek);
    } else {
      mNewDaysOfWeek.set(mDaysOfWeek);
    }
  }

  @Override
  protected void onPrepareDialogBuilder(Builder builder) {
    CharSequence[] entries = getEntries();
    CharSequence[] entryValues = getEntryValues();

    builder.setMultiChoiceItems(
        entries, mDaysOfWeek.getBooleanArray(),
        new DialogInterface.OnMultiChoiceClickListener() {
          public void onClick(DialogInterface dialog, int which,
                              boolean isChecked) {
            mNewDaysOfWeek.set(which, isChecked);
          }
        });
  }

  public void setDaysOfWeek(Alarm.DaysOfWeek dow) {
    mDaysOfWeek.set(dow);
    mNewDaysOfWeek.set(dow);
    setSummary(dow.toString(getContext(), true));
  }

  public Alarm.DaysOfWeek getDaysOfWeek() {
    return mDaysOfWeek;
  }
}