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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.eclipse.jdt.annotation.NonNullByDefault;
  21 import org.openhab.binding.lametrictime.internal.LaMetricTimeBindingConstants;
  22 import org.openhab.binding.lametrictime.internal.LaMetricTimeUtil;
  23 import org.openhab.binding.lametrictime.internal.api.dto.CoreApps;
  24 import org.openhab.binding.lametrictime.internal.api.local.dto.Application;
  25 import org.openhab.binding.lametrictime.internal.api.local.dto.Widget;
  26 import org.openhab.binding.lametrictime.internal.config.LaMetricTimeAppConfiguration;
  27 import org.openhab.binding.lametrictime.internal.handler.LaMetricTimeAppHandler;
  28 import org.openhab.binding.lametrictime.internal.handler.LaMetricTimeHandler;
  29 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  30 import org.openhab.core.config.discovery.DiscoveryResult;
  31 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  32 import org.openhab.core.thing.Thing;
  33 import org.openhab.core.thing.ThingTypeUID;
  34 import org.openhab.core.thing.ThingUID;
  35 import org.openhab.core.thing.binding.ThingHandler;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 import com.google.gson.JsonPrimitive;
  40
  41 /**
  42  * The {@link LaMetricTimeAppDiscoveryService} is responsible for processing the
  43  * list of apps found on the LaMetric Time device.
  44  *
  45  * @author Gregory Moyer - Initial contribution
  46  */
  47 @NonNullByDefault
  48 public class LaMetricTimeAppDiscoveryService extends AbstractDiscoveryService {
  49
  50     private static final Map<String, ThingTypeUID> CORE_APP_THING_TYPE_UIDS = new HashMap<>();
  51     static {
  52         CORE_APP_THING_TYPE_UIDS.put(CoreApps.clock().getPackageName(),
  53                 LaMetricTimeBindingConstants.THING_TYPE_CLOCK_APP);
  54         CORE_APP_THING_TYPE_UIDS.put(CoreApps.countdown().getPackageName(),
  55                 LaMetricTimeBindingConstants.THING_TYPE_COUNTDOWN_APP);
  56         CORE_APP_THING_TYPE_UIDS.put(CoreApps.radio().getPackageName(),
  57                 LaMetricTimeBindingConstants.THING_TYPE_RADIO_APP);
  58         CORE_APP_THING_TYPE_UIDS.put(CoreApps.stopwatch().getPackageName(),
  59                 LaMetricTimeBindingConstants.THING_TYPE_STOPWATCH_APP);
  60         CORE_APP_THING_TYPE_UIDS.put(CoreApps.weather().getPackageName(),
  61                 LaMetricTimeBindingConstants.THING_TYPE_WEATHER_APP);
  62     }
  63
  64     private static final int TIMEOUT = 60;
  65
  66     private final Logger logger = LoggerFactory.getLogger(LaMetricTimeAppDiscoveryService.class);
  67
  68     private final LaMetricTimeHandler deviceHandler;
  69
  70     /**
  71      * Discovers apps on the LaMetric Time device.
  72      *
  73      * @param deviceHandler the LaMetric Time device handler (bridge)
  74      */
  75     public LaMetricTimeAppDiscoveryService(final LaMetricTimeHandler deviceHandler) {
  76         super(new HashSet<>(CORE_APP_THING_TYPE_UIDS.values()), TIMEOUT, false);
  77         this.deviceHandler = deviceHandler;
  78     }
  79
  80     @Override
  81     protected void startScan() {
  82         logger.debug("Starting scan for new apps");
  83
  84         ThingUID bridgeUID = deviceHandler.getThing().getUID();
  85         List<Thing> existingThings = deviceHandler.getThing().getThings();
  86
  87         for (Application app : deviceHandler.getApps().values()) {
  88             String packageName = app.getPackageName();
  89
  90             ThingTypeUID thingType = CORE_APP_THING_TYPE_UIDS.get(packageName);
  91             if (thingType == null) {
  92                 // skip generic apps
  93                 continue;
  94             }
  95
  96             for (Widget widget : app.getWidgets().values()) {
  97                 String widgetId = widget.getId();
  98                 ThingUID thingUID = new ThingUID(thingType, bridgeUID, widgetId);
  99
 100                 // check if thing already exists
 101                 if (containsThing(existingThings, widgetId)) {
 102                     continue;
 103                 }
 104
 105                 logger.debug("New app {} instance found with widget ID {}", packageName, widgetId);
 106
 107                 Map<String, Object> properties = new HashMap<>();
 108                 properties.put(LaMetricTimeAppConfiguration.PACKAGE_NAME, app.getPackageName());
 109                 properties.put(LaMetricTimeAppConfiguration.WIDGET_ID, widgetId);
 110                 properties.put(Thing.PROPERTY_VENDOR, app.getVendor());
 111                 properties.put(Thing.PROPERTY_FIRMWARE_VERSION, app.getVersion());
 112
 113                 Map<String, JsonPrimitive> settings = widget.getSettings();
 114                 if (settings != null) {
 115                     settings.entrySet().stream().forEach(entry -> properties.put(entry.getKey(), entry.getValue()));
 116                 }
 117
 118                 DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(thingUID).withProperties(properties)
 119                         .withBridge(bridgeUID).withLabel(LaMetricTimeUtil.getAppLabel(app, widget)).build();
 120                 thingDiscovered(discoveryResult);
 121             }
 122         }
 123     }
 124
 125     private boolean containsThing(List<Thing> things, String widgetId) {
 126         return things.stream().anyMatch(thing -> {
 127             ThingHandler handler = thing.getHandler();
 128             if (!(handler instanceof LaMetricTimeAppHandler)) {
 129                 return false;
 130             }
 131
 132             Widget widget = ((LaMetricTimeAppHandler) handler).getWidget();
 133             return widget.getId().equals(widgetId);
 134         });
 135     }
 136 }