/* Copyright (C) 2023-2024 Andreas Shimokawa, 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.divoom;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.net.Uri;
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import android.provider.MediaStore;
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import androidx.localbroadcastmanager.content.LocalBroadcastManager;
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import org.apache.commons.lang3.ArrayUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import lineageos.weather.util.WeatherUtils;
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import nodomain.freeyourgadget.gadgetbridge.GBApplication;
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import nodomain.freeyourgadget.gadgetbridge.R;
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import nodomain.freeyourgadget.gadgetbridge.activities.SettingsActivity;
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import nodomain.freeyourgadget.gadgetbridge.activities.devicesettings.DeviceSettingsPreferenceConst;
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import nodomain.freeyourgadget.gadgetbridge.database.DBHelper;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEvent;
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import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventVersionInfo;
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import nodomain.freeyourgadget.gadgetbridge.entities.Alarm;
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import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
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import nodomain.freeyourgadget.gadgetbridge.model.CallSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.DeviceService;
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import nodomain.freeyourgadget.gadgetbridge.model.NotificationSpec;
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import nodomain.freeyourgadget.gadgetbridge.model.WeatherSpec;
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import nodomain.freeyourgadget.gadgetbridge.service.btle.BLETypeConversions;
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import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceProtocol;
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import nodomain.freeyourgadget.gadgetbridge.util.BitmapUtil;
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import nodomain.freeyourgadget.gadgetbridge.util.NotificationUtils;
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import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
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import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
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public class PixooProtocol extends GBDeviceProtocol {
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private static final Logger LOG = LoggerFactory.getLogger(PixooProtocol.class);
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private boolean isFirstExchange = true;
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protected PixooProtocol(GBDevice device) {
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super(device);
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}
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@Override
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public GBDeviceEvent[] decodeResponse(byte[] responseData) {
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List<GBDeviceEvent> devEvts = new ArrayList<>();
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if (isFirstExchange) {
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isFirstExchange = false;
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devEvts.add(new GBDeviceEventVersionInfo()); //TODO: this is a weird hack to make the DBHelper happy. Replace with proper firmware detection
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}
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ByteBuffer incoming = ByteBuffer.wrap(responseData);
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incoming.order(ByteOrder.LITTLE_ENDIAN);
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if (incoming.get() != 0x01) {
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LOG.warn("first byte not 0x01");
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return devEvts.toArray(new GBDeviceEvent[0]);
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}
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int length = incoming.getShort() & 0xffff;
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byte status = incoming.get(); // unsure
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if (status != 0x04) {
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LOG.warn("status byte not 0x04");
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return devEvts.toArray(new GBDeviceEvent[0]);
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}
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byte endpoint = incoming.get(); // unsure
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LOG.info("endpoint " + endpoint);
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if (endpoint == 0x42) {
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decodeAlarms(incoming);
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}
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return devEvts.toArray(new GBDeviceEvent[0]);
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}
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private void decodeAlarms(ByteBuffer incoming) {
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byte unknown = incoming.get();
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if (unknown != 0x55) { // expected
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LOG.warn("unexpected byte when decoding Alarms " + unknown);
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return;
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}
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// Map of alarm position to Alarm, as returned by the band
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final Map<Integer, nodomain.freeyourgadget.gadgetbridge.model.Alarm> payloadAlarms = new HashMap<>();
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while (incoming.remaining() > 10) {
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int position = incoming.get();
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boolean enabled = incoming.get() == 1;
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int hour = incoming.get();
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int minute = incoming.get();
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int repeatMask = incoming.get();
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int unknown2 = incoming.getInt();
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byte unknown3 = incoming.get(); // normally 0x01, on fresh alarms 0x32
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final Alarm alarm = new nodomain.freeyourgadget.gadgetbridge.entities.Alarm();
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alarm.setEnabled(enabled);
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alarm.setPosition(position);
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alarm.setHour(hour);
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alarm.setMinute(minute);
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alarm.setRepetition(repeatMask);
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alarm.setUnused(unknown3 == 0x32 && !enabled);
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payloadAlarms.put(position, alarm);
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}
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final List<nodomain.freeyourgadget.gadgetbridge.entities.Alarm> dbAlarms = DBHelper.getAlarms(getDevice());
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int numUpdatedAlarms = 0;
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for (nodomain.freeyourgadget.gadgetbridge.entities.Alarm alarm : dbAlarms) {
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final int pos = alarm.getPosition();
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final nodomain.freeyourgadget.gadgetbridge.model.Alarm updatedAlarm = payloadAlarms.get(pos);
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final boolean alarmNeedsUpdate = updatedAlarm == null ||
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alarm.getUnused() != updatedAlarm.getUnused() ||
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alarm.getEnabled() != updatedAlarm.getEnabled() ||
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alarm.getSmartWakeup() != updatedAlarm.getSmartWakeup() ||
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alarm.getHour() != updatedAlarm.getHour() ||
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alarm.getMinute() != updatedAlarm.getMinute() ||
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alarm.getRepetition() != updatedAlarm.getRepetition();
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if (alarmNeedsUpdate) {
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numUpdatedAlarms++;
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LOG.info("Updating alarm index={}, unused={}", pos, updatedAlarm == null);
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alarm.setUnused(updatedAlarm == null);
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if (updatedAlarm != null) {
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alarm.setEnabled(updatedAlarm.getEnabled());
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alarm.setUnused(updatedAlarm.getUnused());
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alarm.setSmartWakeup(updatedAlarm.getSmartWakeup());
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alarm.setHour(updatedAlarm.getHour());
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alarm.setMinute(updatedAlarm.getMinute());
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alarm.setRepetition(updatedAlarm.getRepetition());
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}
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DBHelper.store(alarm);
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}
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}
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if (numUpdatedAlarms > 0) {
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final Intent intent = new Intent(DeviceService.ACTION_SAVE_ALARMS);
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LocalBroadcastManager.getInstance(GBApplication.getContext()).sendBroadcast(intent);
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}
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}
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@Override
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public byte[] encodeSendConfiguration(String config) {
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SharedPreferences prefs = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress());
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switch (config) {
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case DeviceSettingsPreferenceConst.PREF_DEVICE_NAME:
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final byte[] deviceName = StringUtils.truncateToBytes(prefs.getString(DeviceSettingsPreferenceConst.PREF_DEVICE_NAME, ""), 26);
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return encodeProtocol(ByteBuffer.allocate(2 + deviceName.length)
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.order(ByteOrder.LITTLE_ENDIAN)
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.put((byte) 0x75)
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.put((byte) deviceName.length)
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.put(deviceName)
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.array());
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case DeviceSettingsPreferenceConst.PREF_SCREEN_BRIGHTNESS:
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byte brightness = (byte) prefs.getInt(DeviceSettingsPreferenceConst.PREF_SCREEN_BRIGHTNESS, 50);
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LOG.debug("setting brightness to " + brightness);
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return encodeProtocol(new byte[]{
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0x74,
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brightness
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});
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case DeviceSettingsPreferenceConst.PREF_TIMEFORMAT:
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final String timeFormat = getDevicePrefs().getTimeFormat();
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final boolean is24hour = DeviceSettingsPreferenceConst.PREF_TIMEFORMAT_24H.equals(timeFormat);
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return encodeProtocol(new byte[]{
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0x2d,
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(byte) (is24hour ? 1 : 0),
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});
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case DeviceSettingsPreferenceConst.PREF_CLAP_HANDS_TO_WAKEUP_DEVICE:
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boolean clap = prefs.getBoolean(DeviceSettingsPreferenceConst.PREF_CLAP_HANDS_TO_WAKEUP_DEVICE, false);
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return encodeProtocol(new byte[]{
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(byte) 0xa7,
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(byte) (clap ? 1 : 0),
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});
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case DeviceSettingsPreferenceConst.PREF_POWER_SAVING:
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boolean power_saving = prefs.getBoolean(DeviceSettingsPreferenceConst.PREF_POWER_SAVING, false);
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return encodeProtocol(new byte[]{
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(byte) 0xb2,
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(byte) (power_saving ? 1 : 0),
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});
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}
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return super.encodeSendConfiguration(config);
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}
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@Override
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public byte[] encodeSetCallState(String number, String name, int command) {
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if (command == CallSpec.CALL_OUTGOING) {
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return null;
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}
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return encodeProtocol(new byte[]{
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0x50,
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(byte) (command == CallSpec.CALL_INCOMING ? 5 : 6),
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});
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}
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@Override
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public byte[] encodeNotification(NotificationSpec notificationSpec) {
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if (!getDevicePrefs().getBoolean(DeviceSettingsPreferenceConst.PREF_SEND_APP_NOTIFICATIONS, true)) {
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LOG.debug("App notifications disabled - ignoring");
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return null;
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}
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byte iconID;
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switch (notificationSpec.type) {
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case KAKAO_TALK:
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iconID = 0;
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break;
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case INSTAGRAM:
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iconID = 1;
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break;
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case SNAPCHAT:
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iconID = 2;
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break;
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case FACEBOOK:
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iconID = 3;
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break;
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case TWITTER:
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iconID = 4;
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break;
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case WHATSAPP:
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case GENERIC_SMS:
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iconID = 8;
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break;
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case SKYPE:
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iconID = 9;
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break;
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case LINE:
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iconID = 10;
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break;
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case WECHAT:
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iconID = 11;
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break;
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case VIBER:
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iconID = 12;
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break;
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case GENERIC_ALARM_CLOCK:
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iconID = 17;
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break;
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default:
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iconID = 0x20;
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}
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return encodeProtocol(new byte[]{
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0x50,
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iconID,
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});
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}
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@Override
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public byte[] encodeSetTime() {
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Calendar now = BLETypeConversions.createCalendar();
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return encodeProtocol(new byte[]{
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0x18,
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(byte) (now.get(Calendar.YEAR) % 100),
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(byte) (now.get(Calendar.YEAR) / 100),
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(byte) (now.get(Calendar.MONTH) + 1),
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(byte) now.get(Calendar.DAY_OF_MONTH),
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(byte) now.get(Calendar.HOUR_OF_DAY),
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(byte) now.get(Calendar.MINUTE),
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(byte) now.get(Calendar.SECOND)
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});
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}
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@Override
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public byte[] encodeSetAlarms(ArrayList<? extends nodomain.freeyourgadget.gadgetbridge.model.Alarm> alarms) {
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byte[] complete_command = new byte[]{};
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for (nodomain.freeyourgadget.gadgetbridge.model.Alarm alarm : alarms) {
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byte[] cmd = new byte[]{
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0x43,
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(byte) alarm.getPosition(),
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(byte) (alarm.getEnabled() && !alarm.getUnused() ? 1 : 0),
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(byte) alarm.getHour(),
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(byte) alarm.getMinute(),
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(byte) alarm.getRepetition(),
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0, 0, 0, 0,
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(byte) (alarm.getUnused() ? 0x32 : 0x00)};
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complete_command = ArrayUtils.addAll(complete_command, encodeProtocol(cmd));
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}
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return complete_command;
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}
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@Override
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public byte[] encodeSendWeather(WeatherSpec weatherSpec) {
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byte pixooWeatherCode = 0;
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if (weatherSpec.currentConditionCode >= 200 && weatherSpec.currentConditionCode <= 299) {
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pixooWeatherCode = 5;
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} else if (weatherSpec.currentConditionCode >= 300 && weatherSpec.currentConditionCode < 600) {
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pixooWeatherCode = 6;
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} else if (weatherSpec.currentConditionCode >= 600 && weatherSpec.currentConditionCode < 700) {
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pixooWeatherCode = 8;
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} else if (weatherSpec.currentConditionCode >= 700 && weatherSpec.currentConditionCode < 800) {
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pixooWeatherCode = 9;
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} else if (weatherSpec.currentConditionCode == 800) {
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pixooWeatherCode = 1;
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} else if (weatherSpec.currentConditionCode >= 801 && weatherSpec.currentConditionCode <= 804) {
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pixooWeatherCode = 3;
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}
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byte temp = (byte) (weatherSpec.currentTemp - 273);
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String units = GBApplication.getPrefs().getString(SettingsActivity.PREF_MEASUREMENT_SYSTEM, GBApplication.getContext().getString(R.string.p_unit_metric));
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if (units.equals(GBApplication.getContext().getString(R.string.p_unit_imperial))) {
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temp = (byte) WeatherUtils.celsiusToFahrenheit(temp);
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}
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return encodeProtocol(new byte[]{
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0x5f,
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temp,
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pixooWeatherCode,
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});
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}
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private byte[] encodeDrawIcon(String packageName) {
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Drawable icon = NotificationUtils.getAppIcon(GBApplication.getContext(), packageName);
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if (icon == null) {
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LOG.warn("could not get icon for package: " + packageName);
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return null;
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}
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final Bitmap bmp = BitmapUtil.toBitmap(icon);
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return encodeShowFrame(bmp);
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}
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protected byte[] encodeShowFrame(Uri uri) {
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try {
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Bitmap bitmap = MediaStore.Images.Media.getBitmap(GBApplication.getContext().getContentResolver(), uri);
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return encodeShowFrame(bitmap);
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} catch (IOException e) {
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LOG.error("could not decode Image",e);
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}
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return null;
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}
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private byte[] encodeShowFrame(Bitmap bitmap) {
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final Bitmap bmpResized = Bitmap.createBitmap(16, 16, Bitmap.Config.ARGB_8888);
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final Canvas canvas = new Canvas(bmpResized);
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final Rect rect = new Rect(0, 0, 16, 16);
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canvas.drawBitmap(bitmap, null, rect, null);
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// construct palette with unique colors
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HashSet<Integer> palette = new HashSet<>();
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for (int y = 0; y < 16; y++) {
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for (int x = 0; x < 16; x++) {
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int pixel = bmpResized.getPixel(x, y);
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palette.add(pixel);
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}
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}
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// convert to lookup of index
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HashMap<Integer, Integer> paletteLookup = new HashMap<>();
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int index = 0;
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for (int color : palette) {
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paletteLookup.put(color, index++);
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}
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int paletteMaxIndex = palette.size() - 1;
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int bpp = 1;
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while ((paletteMaxIndex >>= 1) != 0) {
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bpp++;
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}
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LOG.info("got palette of {} colors, will need {}bpp", palette.size(), bpp);
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byte[] header = new byte[]{0x44, 0x00, 0x0a, 0x0a, 0x04, (byte) 0xaa, 0x53, 0x00, (byte) 0xf4, 0x01, 0x00, (byte) palette.size()};
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int pixels_size = (bpp * 16 * 16) / 8;
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byte[] pixels = new byte[pixels_size];
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ByteBuffer buf = ByteBuffer.allocate(palette.size() * 3 + header.length + pixels_size);
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buf.put(header);
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for (int color : palette) {
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buf.put((byte) ((color >> 16) & 0xff));
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buf.put((byte) ((color >> 8) & 0xff));
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buf.put((byte) (color & 0xff));
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}
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int bitposition = 0;
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for (int y = 0; y < 16; y++) {
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for (int x = 0; x < 16; x++) {
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int pixel = bmpResized.getPixel(x, y);
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index = paletteLookup.get(pixel);
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int pos = bitposition / 8;
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int shift = bitposition % 8;
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pixels[pos] = (byte) (pixels[pos] | (byte) (index << shift));
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if (shift + bpp > 8) {
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shift = -shift + 8;
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pos++;
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pixels[pos] = (byte) (pixels[pos] | (byte) (index >> shift));
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}
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bitposition += bpp;
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}
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}
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buf.put(pixels);
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return encodeProtocol(buf.array());
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}
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private byte[] encodeClockModeCommand(int clockMode, boolean showTime, boolean showWeather, boolean showTemperature, boolean showDate,
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int r, int g, int b) {
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r = Math.min(r, 127);
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g = Math.min(g, 127);
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b = Math.min(b, 127);
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return encodeProtocol(new byte[]{
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0x45,
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0x00,
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0x01, // unknown, can be 0 or 1
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(byte) clockMode,
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(byte) (showTime ? 0x01 : 0x00), // ignored it seems
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(byte) (showWeather ? 0x01 : 0x00),
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(byte) (showTemperature ? 0x01 : 0x00),
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(byte) (showDate ? 0x01 : 0x00),
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(byte) r, (byte) g, (byte) b
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});
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}
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private byte[] encodeAudioVisualisationModeCommand(int visualisationMode) {
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return encodeProtocol(new byte[]{
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0x45,
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0x04,
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(byte) visualisationMode,
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});
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}
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private byte[] encodeEffectModeCommand(int effectMode) {
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return encodeProtocol(new byte[]{
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0x45,
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0x03,
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(byte) effectMode,
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});
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}
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public byte[] encodeReqestAlarms() {
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return encodeProtocol(new byte[]{0x42});
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}
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@Override
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public byte[] encodeTestNewFunction() {
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//return encodeAudioModeCommand(1); // works
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//return encodeEffectModeCommand(5); // does nothing
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//return encodeClockModeCommand(0, true, true, false, true, 127, 127, 127); // works r,g,b up to 127
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return encodeDrawIcon("nodomain.freeyourgadget.gadgetbridge");
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//return encodeDrawIcon("com.benny.openlauncher");
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}
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byte[] encodeProtocol(byte[] payload) {
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ByteBuffer msgBuf = ByteBuffer.allocate(6 + payload.length);
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msgBuf.order(ByteOrder.LITTLE_ENDIAN);
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msgBuf.put((byte) 0x01);
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msgBuf.putShort((short) (payload.length + 2));
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msgBuf.put(payload);
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short crc = (short) (((payload.length + 2) & 0xff) + ((payload.length + 2) >> 8));
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for (byte b : payload) {
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crc += (b & 0xff);
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}
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msgBuf.putShort(crc);
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msgBuf.put((byte) 0x02);
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return msgBuf.array();
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}
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}
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