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/*
* Copyright (c) 2017 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 android.service.notification;
import android.service.notification.ZenModeConfig.ScheduleInfo;
import android.util.ArraySet;
import android.util.Log;
import java.util.Calendar;
import java.util.Objects;
import java.util.TimeZone;
/**
* @hide
*/
public class ScheduleCalendar {
public static final String TAG = "ScheduleCalendar";
public static final boolean DEBUG = Log.isLoggable("ConditionProviders", Log.DEBUG);
private final ArraySet<Integer> mDays = new ArraySet<Integer>();
private final Calendar mCalendar = Calendar.getInstance();
private ScheduleInfo mSchedule;
@Override
public String toString() {
return "ScheduleCalendar[mDays=" + mDays + ", mSchedule=" + mSchedule + "]";
}
/**
* @return true if schedule will exit on alarm, else false
*/
public boolean exitAtAlarm() {
return mSchedule.exitAtAlarm;
}
/**
* Sets schedule information
*/
public void setSchedule(ScheduleInfo schedule) {
if (Objects.equals(mSchedule, schedule)) return;
mSchedule = schedule;
updateDays();
}
/**
* Sets next alarm of the schedule if the saved next alarm has passed or is further
* in the future than given nextAlarm
* @param now current time in milliseconds
* @param nextAlarm time of next alarm in milliseconds
*/
public void maybeSetNextAlarm(long now, long nextAlarm) {
if (mSchedule != null && mSchedule.exitAtAlarm) {
// alarm canceled
if (nextAlarm == 0) {
mSchedule.nextAlarm = 0;
}
// only allow alarms in the future
if (nextAlarm > now) {
if (mSchedule.nextAlarm == 0 || mSchedule.nextAlarm < now) {
mSchedule.nextAlarm = nextAlarm;
} else {
// store earliest alarm
mSchedule.nextAlarm = Math.min(mSchedule.nextAlarm, nextAlarm);
}
} else if (mSchedule.nextAlarm < now) {
if (DEBUG) {
Log.d(TAG, "All alarms are in the past " + mSchedule.nextAlarm);
}
mSchedule.nextAlarm = 0;
}
}
}
/**
* Set calendar time zone to tz
* @param tz current time zone
*/
public void setTimeZone(TimeZone tz) {
mCalendar.setTimeZone(tz);
}
/**
* @param now current time in milliseconds
* @return next time this rule changes (starts or ends)
*/
public long getNextChangeTime(long now) {
if (mSchedule == null) return 0;
final long nextStart = getNextTime(now, mSchedule.startHour, mSchedule.startMinute);
final long nextEnd = getNextTime(now, mSchedule.endHour, mSchedule.endMinute);
long nextScheduleTime = Math.min(nextStart, nextEnd);
return nextScheduleTime;
}
private long getNextTime(long now, int hr, int min) {
final long time = getTime(now, hr, min);
return time <= now ? addDays(time, 1) : time;
}
private long getTime(long millis, int hour, int min) {
mCalendar.setTimeInMillis(millis);
mCalendar.set(Calendar.HOUR_OF_DAY, hour);
mCalendar.set(Calendar.MINUTE, min);
mCalendar.set(Calendar.SECOND, 0);
mCalendar.set(Calendar.MILLISECOND, 0);
return mCalendar.getTimeInMillis();
}
/**
* @param time milliseconds since Epoch
* @return true if time is within the schedule, else false
*/
public boolean isInSchedule(long time) {
if (mSchedule == null || mDays.size() == 0) return false;
final long start = getTime(time, mSchedule.startHour, mSchedule.startMinute);
long end = getTime(time, mSchedule.endHour, mSchedule.endMinute);
if (end <= start) {
end = addDays(end, 1);
}
return isInSchedule(-1, time, start, end) || isInSchedule(0, time, start, end);
}
/**
* @param alarm milliseconds since Epoch
* @param now milliseconds since Epoch
* @return true if alarm and now is within the schedule, else false
*/
public boolean isAlarmInSchedule(long alarm, long now) {
if (mSchedule == null || mDays.size() == 0) return false;
final long start = getTime(alarm, mSchedule.startHour, mSchedule.startMinute);
long end = getTime(alarm, mSchedule.endHour, mSchedule.endMinute);
if (end <= start) {
end = addDays(end, 1);
}
return (isInSchedule(-1, alarm, start, end)
&& isInSchedule(-1, now, start, end))
|| (isInSchedule(0, alarm, start, end)
&& isInSchedule(0, now, start, end));
}
/**
* @param time milliseconds since Epoch
* @return true if should exit at time for next alarm, else false
*/
public boolean shouldExitForAlarm(long time) {
if (mSchedule == null) {
return false;
}
return mSchedule.exitAtAlarm
&& mSchedule.nextAlarm != 0
&& time >= mSchedule.nextAlarm
&& isAlarmInSchedule(mSchedule.nextAlarm, time);
}
private boolean isInSchedule(int daysOffset, long time, long start, long end) {
final int n = Calendar.SATURDAY;
final int day = ((getDayOfWeek(time) - 1) + (daysOffset % n) + n) % n + 1;
start = addDays(start, daysOffset);
end = addDays(end, daysOffset);
return mDays.contains(day) && time >= start && time < end;
}
private int getDayOfWeek(long time) {
mCalendar.setTimeInMillis(time);
return mCalendar.get(Calendar.DAY_OF_WEEK);
}
private void updateDays() {
mDays.clear();
if (mSchedule != null && mSchedule.days != null) {
for (int i = 0; i < mSchedule.days.length; i++) {
mDays.add(mSchedule.days[i]);
}
}
}
private long addDays(long time, int days) {
mCalendar.setTimeInMillis(time);
mCalendar.add(Calendar.DATE, days);
return mCalendar.getTimeInMillis();
}
}
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