259 lines
9.1 KiB
Java
259 lines
9.1 KiB
Java
/* Copyright (C) 2023-2024 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.service.devices.huami.zeppos.services;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.charset.StandardCharsets;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventUpdatePreferences;
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import nodomain.freeyourgadget.gadgetbridge.model.CalendarEventSpec;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.BLETypeConversions;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.TransactionBuilder;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.zeppos.ZeppOsSupport;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.zeppos.AbstractZeppOsService;
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import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
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public class ZeppOsCalendarService extends AbstractZeppOsService {
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private static final Logger LOG = LoggerFactory.getLogger(ZeppOsCalendarService.class);
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public static final short ENDPOINT = 0x0007;
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public static final byte CMD_CAPABILITIES_REQUEST = 0x01;
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public static final byte CMD_CAPABILITIES_RESPONSE = 0x02;
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public static final byte CMD_EVENTS_REQUEST = 0x05;
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public static final byte CMD_EVENTS_RESPONSE = 0x06;
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public static final byte CMD_CREATE_EVENT = 0x07;
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public static final byte CMD_CREATE_EVENT_ACK = 0x08;
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public static final byte CMD_DELETE_EVENT = 0x09;
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public static final byte CMD_DELETE_EVENT_ACK = 0x0a;
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public static final String PREF_VERSION = "zepp_os_calendar_version";
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private int version = -1;
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public ZeppOsCalendarService(final ZeppOsSupport support) {
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super(support, false);
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}
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@Override
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public short getEndpoint() {
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return ENDPOINT;
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}
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@Override
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public void initialize(final TransactionBuilder builder) {
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requestCapabilities(builder);
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}
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public void requestCapabilities(final TransactionBuilder builder) {
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write(builder, CMD_CAPABILITIES_REQUEST);
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}
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@Override
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public void handlePayload(final byte[] payload) {
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switch (payload[0]) {
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case CMD_CAPABILITIES_RESPONSE:
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version = payload[1];
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getSupport().evaluateGBDeviceEvent(new GBDeviceEventUpdatePreferences(PREF_VERSION, version));
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if (version != 1 && version != 3) {
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LOG.warn("Unsupported calendar service version {}", version);
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return;
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}
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LOG.info("Calendar service version={}", version);
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break;
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case CMD_EVENTS_RESPONSE:
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LOG.info("Got calendar events from band");
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decodeAndUpdateCalendarEvents(payload);
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return;
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case CMD_CREATE_EVENT_ACK:
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LOG.info("Calendar create event ACK, status = {}", payload[1]);
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return;
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case CMD_DELETE_EVENT_ACK:
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LOG.info("Calendar delete event ACK, status = {}", payload[1]);
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return;
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default:
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LOG.warn("Unexpected calendar payload byte {}", String.format("0x%02x", payload[0]));
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}
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}
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public void requestCalendarEvents() {
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LOG.info("Requesting calendar events from band");
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write("request calendar events", new byte[]{CMD_EVENTS_REQUEST, 0x00, 0x00});
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}
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public void addEvent(final CalendarEventSpec calendarEventSpec) {
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if (calendarEventSpec.type != CalendarEventSpec.TYPE_UNKNOWN) {
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LOG.warn("Unsupported calendar event type {}", calendarEventSpec.type);
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return;
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}
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LOG.info("Sending calendar event {} to band", calendarEventSpec.id);
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int length = 34;
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if (calendarEventSpec.title != null) {
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length += calendarEventSpec.title.getBytes(StandardCharsets.UTF_8).length;
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}
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if (calendarEventSpec.description != null) {
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length += calendarEventSpec.description.getBytes(StandardCharsets.UTF_8).length;
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}
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if (version == 3) {
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if (calendarEventSpec.location != null) {
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length += calendarEventSpec.location.getBytes(StandardCharsets.UTF_8).length;
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}
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// Extra null byte at the end
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length++;
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}
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final ByteBuffer buf = ByteBuffer.allocate(length);
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buf.order(ByteOrder.LITTLE_ENDIAN);
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buf.put(CMD_CREATE_EVENT);
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buf.putInt((int) calendarEventSpec.id);
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if (calendarEventSpec.title != null) {
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buf.put(calendarEventSpec.title.getBytes(StandardCharsets.UTF_8));
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}
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buf.put((byte) 0x00);
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if (calendarEventSpec.description != null) {
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buf.put(calendarEventSpec.description.getBytes(StandardCharsets.UTF_8));
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}
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buf.put((byte) 0x00);
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buf.putInt(calendarEventSpec.timestamp);
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buf.putInt(calendarEventSpec.timestamp + calendarEventSpec.durationInSeconds);
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// Remind
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if (calendarEventSpec.reminders != null && !calendarEventSpec.reminders.isEmpty()) {
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buf.putInt((int) (calendarEventSpec.reminders.get(0) / 1000L));
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} else {
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buf.putInt(0);
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}
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// Repeat
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buf.put((byte) 0x00); // ?
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buf.put((byte) 0x00); // ?
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buf.put((byte) 0x00); // ?
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buf.put((byte) 0x00); // ?
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// ?
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buf.put((byte) 0xff); // ?
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buf.put((byte) 0xff); // ?
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buf.put((byte) 0xff); // ?
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buf.put((byte) 0xff); // ?
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buf.put(bool(calendarEventSpec.allDay));
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buf.put((byte) 0x00); // ?
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buf.put((byte) 130); // ?
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buf.put((byte) 0x00); // ?
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buf.put((byte) 0x00); // ?
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buf.put((byte) 0x00); // ?
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buf.put((byte) 0x00); // ?
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// TODO: Description here
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if (version == 3) {
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if (calendarEventSpec.location != null) {
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buf.put(calendarEventSpec.location.getBytes(StandardCharsets.UTF_8));
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}
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buf.put((byte) 0x00);
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}
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write("add calendar event", buf.array());
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}
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public void deleteEvent(final byte type, final long id) {
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if (type != CalendarEventSpec.TYPE_UNKNOWN) {
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LOG.warn("Unsupported calendar event type {}", type);
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return;
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}
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LOG.info("Deleting calendar event {} from band", id);
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final ByteBuffer buf = ByteBuffer.allocate(5);
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buf.order(ByteOrder.LITTLE_ENDIAN);
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buf.put(CMD_DELETE_EVENT);
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buf.putInt((int) id);
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write("delete calendar event", buf.array());
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}
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private void decodeAndUpdateCalendarEvents(final byte[] payload) {
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final int numEvents = payload[1];
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// FIXME there's a 0 after this, is it actually a 2-byte short?
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if (payload.length < 1 + numEvents * 34) {
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LOG.warn("Unexpected payload length of {} for {} calendar events", payload.length, numEvents);
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return;
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}
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int i = 3;
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while (i < payload.length) {
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if (payload.length - i < 34) {
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LOG.error("Not enough bytes remaining to parse a calendar event ({})", payload.length - i);
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return;
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}
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final int eventId = BLETypeConversions.toUint32(payload, i);
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i += 4;
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final String title = StringUtils.untilNullTerminator(payload, i);
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if (title == null) {
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LOG.error("Failed to decode title");
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return;
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}
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i += title.length() + 1;
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final String description = StringUtils.untilNullTerminator(payload, i);
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if (description == null) {
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LOG.error("Failed to decode description");
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return;
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}
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i += description.length() + 1;
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final int startTime = BLETypeConversions.toUint32(payload, i);
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i += 4;
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final int endTime = BLETypeConversions.toUint32(payload, i);
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i += 4;
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final int reminderTime = BLETypeConversions.toUint32(payload, i);
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i += 4;
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// ? 00 00 00 00 ff ff ff ff
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i += 12;
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boolean allDay = (payload[i] == 0x01);
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i++;
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// ? 00 82 00 00 00 00
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i += 6;
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LOG.info("Calendar Event {}: {}", eventId, title);
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}
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if (i != payload.length) {
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LOG.error("Unexpected calendar events payload trailer, {} bytes were not consumed", payload.length - i);
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return;
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}
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// TODO update database?
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}
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}
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