60 lines
2.2 KiB
Java
60 lines
2.2 KiB
Java
/* Copyright (C) 2024 Damien Gaignon, José Rebelo
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.devices.huawei;
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import java.nio.ByteBuffer;
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import java.text.DateFormat;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Locale;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class HuaweiUtil {
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private static final Logger LOG = LoggerFactory.getLogger(HuaweiUtil.class);
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public static byte[] timeToByte(String time) {
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Calendar calendar = Calendar.getInstance();
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DateFormat df = new SimpleDateFormat("HH:mm", Locale.ENGLISH);
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try {
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Date t = df.parse(time);
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assert t != null;
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calendar.setTime(t);
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} catch (ParseException e) {
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LOG.error("Time conversion error: " + e);
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return null;
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}
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return new byte[]{
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(byte)calendar.get(Calendar.HOUR_OF_DAY),
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(byte)calendar.get(Calendar.MINUTE)};
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}
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public static byte[] getTimeAndZoneId(final Calendar now) {
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int zoneRawOffset = (now.get(Calendar.ZONE_OFFSET) + now.get(Calendar.DST_OFFSET)) / 1000;
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byte[] id = now.getTimeZone().getID().getBytes();
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return ByteBuffer.allocate(6 + id.length)
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.putInt((int)(now.getTimeInMillis() / 1000))
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.put((byte)(zoneRawOffset < 0 ? (-zoneRawOffset / 3600 + 128) : zoneRawOffset / 3600) )
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.put((byte)(zoneRawOffset / 60 % 60))
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.put(id)
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.array();
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}
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}
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