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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.surepetcare.internal.discovery;
  14
  15 import static org.openhab.binding.surepetcare.internal.SurePetcareConstants.*;
  16
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import java.util.Set;
  20 import java.util.concurrent.ScheduledFuture;
  21 import java.util.concurrent.TimeUnit;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.openhab.binding.surepetcare.internal.dto.SurePetcareDevice;
  26 import org.openhab.binding.surepetcare.internal.dto.SurePetcareDevice.ProductType;
  27 import org.openhab.binding.surepetcare.internal.dto.SurePetcareHousehold;
  28 import org.openhab.binding.surepetcare.internal.dto.SurePetcarePet;
  29 import org.openhab.binding.surepetcare.internal.handler.SurePetcareBridgeHandler;
  30 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  31 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  32 import org.openhab.core.config.discovery.DiscoveryService;
  33 import org.openhab.core.thing.ThingStatus;
  34 import org.openhab.core.thing.ThingTypeUID;
  35 import org.openhab.core.thing.ThingUID;
  36 import org.openhab.core.thing.binding.ThingHandler;
  37 import org.openhab.core.thing.binding.ThingHandlerService;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 /**
  42  * The {@link SurePetcareDiscoveryService} is an implementation of a discovery service for Sure Petcare pets and
  43  * devices.
  44  *
  45  * @author Rene Scherer - Initial contribution
  46  */
  47 @NonNullByDefault
  48 public class SurePetcareDiscoveryService extends AbstractDiscoveryService
  49         implements DiscoveryService, ThingHandlerService {
  50
  51     private final Logger logger = LoggerFactory.getLogger(SurePetcareDiscoveryService.class);
  52
  53     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Set.of(THING_TYPE_BRIDGE);
  54
  55     private static final int DISCOVER_TIMEOUT_SECONDS = 5;
  56     private static final int DISCOVERY_SCAN_DELAY_MINUTES = 1;
  57     private static final int DISCOVERY_REFRESH_INTERVAL_HOURS = 12;
  58
  59     private @Nullable ScheduledFuture<?> discoveryJob;
  60
  61     private @NonNullByDefault({}) SurePetcareBridgeHandler bridgeHandler;
  62     private @NonNullByDefault({}) ThingUID bridgeUID;
  63
  64     /**
  65      * Creates a SurePetcareDiscoveryService with enabled autostart.
  66      */
  67     public SurePetcareDiscoveryService() {
  68         super(SUPPORTED_THING_TYPES, DISCOVER_TIMEOUT_SECONDS);
  69     }
  70
  71     @Override
  72     public Set<ThingTypeUID> getSupportedThingTypes() {
  73         return SUPPORTED_THING_TYPES;
  74     }
  75
  76     @Override
  77     public void activate() {
  78         Map<String, Object> properties = new HashMap<>();
  79         properties.put(DiscoveryService.CONFIG_PROPERTY_BACKGROUND_DISCOVERY, Boolean.TRUE);
  80         super.activate(properties);
  81     }
  82
  83     /* We override this method to allow a call from the thing handler factory */
  84     @Override
  85     public void deactivate() {
  86         super.deactivate();
  87     }
  88
  89     @Override
  90     public void setThingHandler(@Nullable ThingHandler handler) {
  91         if (handler instanceof SurePetcareBridgeHandler bridgeHandler) {
  92             this.bridgeHandler = bridgeHandler;
  93             bridgeUID = bridgeHandler.getUID();
  94         }
  95     }
  96
  97     @Override
  98     public @Nullable ThingHandler getThingHandler() {
  99         return bridgeHandler;
 100     }
 101
 102     @Override
 103     protected void startBackgroundDiscovery() {
 104         logger.debug("Starting Sure Petcare household discovery");
 105         stopBackgroundDiscovery();
 106         discoveryJob = scheduler.scheduleWithFixedDelay(this::startScan, DISCOVERY_SCAN_DELAY_MINUTES,
 107                 DISCOVERY_REFRESH_INTERVAL_HOURS * 60, TimeUnit.MINUTES);
 108         logger.debug("Scheduled topology-changed job every {} hours", DISCOVERY_REFRESH_INTERVAL_HOURS);
 109     }
 110
 111     @Override
 112     protected void stopBackgroundDiscovery() {
 113         ScheduledFuture<?> job = discoveryJob;
 114         if (job != null) {
 115             job.cancel(true);
 116             discoveryJob = null;
 117             logger.debug("Stopped Sure Petcare device background discovery");
 118         }
 119     }
 120
 121     @Override
 122     protected void startScan() {
 123         logger.debug("Starting Sure Petcare discovery scan");
 124         // If the bridge is not online no other thing devices can be found, so no reason to scan at this moment.
 125         removeOlderResults(getTimestampOfLastScan());
 126         if (bridgeHandler.getThing().getStatus() == ThingStatus.ONLINE) {
 127             logger.debug("Starting device discovery for bridge {}", bridgeUID);
 128             bridgeHandler.listHouseholds().forEach(this::householdDiscovered);
 129             bridgeHandler.listPets().forEach(this::petDiscovered);
 130             bridgeHandler.listDevices().forEach(this::deviceDiscovered);
 131         }
 132     }
 133
 134     private void householdDiscovered(SurePetcareHousehold household) {
 135         logger.debug("Discovered household: {}", household.name);
 136         ThingUID thingsUID = new ThingUID(THING_TYPE_HOUSEHOLD, bridgeUID, household.id.toString());
 137         Map<String, Object> properties = new HashMap<>(household.getThingProperties());
 138         thingDiscovered(DiscoveryResultBuilder.create(thingsUID).withLabel(household.name).withProperties(properties)
 139                 .withRepresentationProperty(PROPERTY_NAME_ID).withBridge(bridgeUID).build());
 140     }
 141
 142     private void petDiscovered(SurePetcarePet pet) {
 143         logger.debug("Discovered pet: {}", pet.name);
 144         ThingUID thingsUID = new ThingUID(THING_TYPE_PET, bridgeUID, pet.id.toString());
 145         Map<String, Object> properties = new HashMap<>(pet.getThingProperties());
 146         thingDiscovered(DiscoveryResultBuilder.create(thingsUID).withLabel(pet.name).withProperties(properties)
 147                 .withRepresentationProperty(PROPERTY_NAME_ID).withBridge(bridgeUID).build());
 148     }
 149
 150     private void deviceDiscovered(SurePetcareDevice device) {
 151         logger.debug("Discovered device: {}", device.name);
 152         ThingTypeUID typeUID = null;
 153         switch (ProductType.findByTypeId(device.productId)) {
 154             case HUB:
 155                 typeUID = THING_TYPE_HUB_DEVICE;
 156                 break;
 157             case CAT_FLAP:
 158                 typeUID = THING_TYPE_FLAP_DEVICE;
 159                 break;
 160             case PET_FLAP:
 161                 typeUID = THING_TYPE_FLAP_DEVICE;
 162                 break;
 163             case PET_FEEDER:
 164                 typeUID = THING_TYPE_FEEDER_DEVICE;
 165                 break;
 166             case UNKNOWN:
 167             default:
 168                 return;
 169         }
 170         ThingUID thingsUID = new ThingUID(typeUID, bridgeUID, device.id.toString());
 171         Map<String, Object> properties = new HashMap<>(device.getThingProperties());
 172         thingDiscovered(DiscoveryResultBuilder.create(thingsUID).withLabel(device.name).withProperties(properties)
 173                 .withRepresentationProperty(PROPERTY_NAME_ID).withBridge(bridgeUID).build());
 174     }
 175 }