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1 /**
2  * Copyright (c) 2010-2022 Contributors to the openHAB project
3  *
4  * See the NOTICE file(s) distributed with this work for additional
5  * information.
6  *
7  * This program and the accompanying materials are made available under the
8  * terms of the Eclipse Public License 2.0 which is available at
9  * http://www.eclipse.org/legal/epl-2.0
10  *
11  * SPDX-License-Identifier: EPL-2.0
12  */
13 package org.openhab.binding.netatmo.internal.handler.channelhelper;
14
15 import static org.openhab.binding.netatmo.internal.NetatmoBindingConstants.*;
16
17 import org.eclipse.jdt.annotation.NonNullByDefault;
18 import org.eclipse.jdt.annotation.Nullable;
19 import org.openhab.binding.netatmo.internal.api.dto.HomeStatusModule;
20 import org.openhab.binding.netatmo.internal.api.dto.Module;
21 import org.openhab.binding.netatmo.internal.api.dto.NAThing;
22 import org.openhab.core.config.core.Configuration;
23 import org.openhab.core.library.types.DecimalType;
24 import org.openhab.core.library.types.OnOffType;
25 import org.openhab.core.types.State;
26
27 /**
28  * The {@link BatteryChannelHelper} handles specific channels of modules using batteries
29  *
30  * @author GaĆ«l L'hopital - Initial contribution
31  *
32  */
33 @NonNullByDefault
34 public class BatteryChannelHelper extends ChannelHelper {
35
36     public BatteryChannelHelper() {
37         super(GROUP_BATTERY);
38     }
39
40     protected BatteryChannelHelper(String groupName) {
41         super(groupName);
42     }
43
44     @Override
45     protected @Nullable State internalGetProperty(String channelId, NAThing naThing, Configuration config) {
46         int percent = -1;
47         if (naThing instanceof Module) {
48             percent = ((Module) naThing).getBatteryPercent();
49         }
50         if (naThing instanceof HomeStatusModule) {
51             percent = ((HomeStatusModule) naThing).getBatteryState().level;
52         }
53         switch (channelId) {
54             case CHANNEL_VALUE:
55                 if (percent >= 0) {
56                     return new DecimalType(percent);
57                 }
58             case CHANNEL_LOW_BATTERY:
59                 if (percent >= 0) {
60                     return OnOffType.from(percent < 20);
61                 }
62         }
63         return null;
64     }
65 }