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   1 /**
   2  * Copyright (c) 2010-2023 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.lametrictime.internal.discovery;
  14
  15 import java.util.HashMap;
  16 import java.util.HashSet;
  17 import java.util.List;
  18 import java.util.Map;
  19
  20 import org.openhab.binding.lametrictime.api.local.model.Application;
  21 import org.openhab.binding.lametrictime.api.local.model.Widget;
  22 import org.openhab.binding.lametrictime.api.model.CoreApps;
  23 import org.openhab.binding.lametrictime.internal.LaMetricTimeBindingConstants;
  24 import org.openhab.binding.lametrictime.internal.LaMetricTimeUtil;
  25 import org.openhab.binding.lametrictime.internal.config.LaMetricTimeAppConfiguration;
  26 import org.openhab.binding.lametrictime.internal.handler.LaMetricTimeAppHandler;
  27 import org.openhab.binding.lametrictime.internal.handler.LaMetricTimeHandler;
  28 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  29 import org.openhab.core.config.discovery.DiscoveryResult;
  30 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  31 import org.openhab.core.thing.Thing;
  32 import org.openhab.core.thing.ThingTypeUID;
  33 import org.openhab.core.thing.ThingUID;
  34 import org.openhab.core.thing.binding.ThingHandler;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 import com.google.gson.JsonPrimitive;
  39
  40 /**
  41  * The {@link LaMetricTimeAppDiscoveryService} is responsible for processing the
  42  * list of apps found on the LaMetric Time device.
  43  *
  44  * @author Gregory Moyer - Initial contribution
  45  */
  46 public class LaMetricTimeAppDiscoveryService extends AbstractDiscoveryService {
  47
  48     private static final Map<String, ThingTypeUID> CORE_APP_THING_TYPE_UIDS = new HashMap<>();
  49     static {
  50         CORE_APP_THING_TYPE_UIDS.put(CoreApps.clock().getPackageName(),
  51                 LaMetricTimeBindingConstants.THING_TYPE_CLOCK_APP);
  52         CORE_APP_THING_TYPE_UIDS.put(CoreApps.countdown().getPackageName(),
  53                 LaMetricTimeBindingConstants.THING_TYPE_COUNTDOWN_APP);
  54         CORE_APP_THING_TYPE_UIDS.put(CoreApps.radio().getPackageName(),
  55                 LaMetricTimeBindingConstants.THING_TYPE_RADIO_APP);
  56         CORE_APP_THING_TYPE_UIDS.put(CoreApps.stopwatch().getPackageName(),
  57                 LaMetricTimeBindingConstants.THING_TYPE_STOPWATCH_APP);
  58         CORE_APP_THING_TYPE_UIDS.put(CoreApps.weather().getPackageName(),
  59                 LaMetricTimeBindingConstants.THING_TYPE_WEATHER_APP);
  60     }
  61
  62     private static final int TIMEOUT = 60;
  63
  64     private final Logger logger = LoggerFactory.getLogger(LaMetricTimeAppDiscoveryService.class);
  65
  66     private final LaMetricTimeHandler deviceHandler;
  67
  68     /**
  69      * Discovers apps on the LaMetric Time device.
  70      *
  71      * @param deviceHandler the LaMetric Time device handler (bridge)
  72      */
  73     public LaMetricTimeAppDiscoveryService(final LaMetricTimeHandler deviceHandler) {
  74         super(new HashSet<>(CORE_APP_THING_TYPE_UIDS.values()), TIMEOUT, false);
  75         this.deviceHandler = deviceHandler;
  76     }
  77
  78     @Override
  79     protected void startScan() {
  80         logger.debug("Starting scan for new apps");
  81
  82         ThingUID bridgeUID = deviceHandler.getThing().getUID();
  83         List<Thing> existingThings = deviceHandler.getThing().getThings();
  84
  85         for (Application app : deviceHandler.getApps().values()) {
  86             String packageName = app.getPackageName();
  87
  88             ThingTypeUID thingType = CORE_APP_THING_TYPE_UIDS.get(packageName);
  89             if (thingType == null) {
  90                 // skip generic apps
  91                 continue;
  92             }
  93
  94             for (Widget widget : app.getWidgets().values()) {
  95                 String widgetId = widget.getId();
  96                 ThingUID thingUID = new ThingUID(thingType, bridgeUID, widgetId);
  97
  98                 // check if thing already exists
  99                 if (containsThing(existingThings, widgetId)) {
 100                     continue;
 101                 }
 102
 103                 logger.debug("New app {} instance found with widget ID {}", packageName, widgetId);
 104
 105                 Map<String, Object> properties = new HashMap<>();
 106                 properties.put(LaMetricTimeAppConfiguration.PACKAGE_NAME, app.getPackageName());
 107                 properties.put(LaMetricTimeAppConfiguration.WIDGET_ID, widgetId);
 108                 properties.put(Thing.PROPERTY_VENDOR, app.getVendor());
 109                 properties.put(Thing.PROPERTY_FIRMWARE_VERSION, app.getVersion());
 110
 111                 Map<String, JsonPrimitive> settings = widget.getSettings();
 112                 if (settings != null) {
 113                     settings.entrySet().stream().forEach(entry -> properties.put(entry.getKey(), entry.getValue()));
 114                 }
 115
 116                 DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(thingUID).withProperties(properties)
 117                         .withBridge(bridgeUID).withLabel(LaMetricTimeUtil.getAppLabel(app, widget)).build();
 118                 thingDiscovered(discoveryResult);
 119             }
 120         }
 121     }
 122
 123     private boolean containsThing(List<Thing> things, String widgetId) {
 124         return things.stream().anyMatch(thing -> {
 125             ThingHandler handler = thing.getHandler();
 126             if (!(handler instanceof LaMetricTimeAppHandler)) {
 127                 return false;
 128             }
 129
 130             Widget widget = ((LaMetricTimeAppHandler) handler).getWidget();
 131             return widget.getId().equals(widgetId);
 132         });
 133     }
 134 }