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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.semsportal.internal;
  14
  15 import static org.openhab.binding.semsportal.internal.SEMSPortalBindingConstants.*;
  16
  17 import java.time.LocalDateTime;
  18 import java.util.concurrent.TimeUnit;
  19
  20 import org.eclipse.jdt.annotation.NonNullByDefault;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.openhab.binding.semsportal.internal.dto.StationStatus;
  23 import org.openhab.core.thing.Bridge;
  24 import org.openhab.core.thing.Channel;
  25 import org.openhab.core.thing.ChannelUID;
  26 import org.openhab.core.thing.Thing;
  27 import org.openhab.core.thing.ThingStatus;
  28 import org.openhab.core.thing.ThingStatusDetail;
  29 import org.openhab.core.thing.binding.BaseThingHandler;
  30 import org.openhab.core.types.Command;
  31 import org.openhab.core.types.RefreshType;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * The {@link StationHandler} is responsible for handling commands, which are
  37  * sent to one of the channels.
  38  *
  39  * @author Iwan Bron - Initial contribution
  40  */
  41 @NonNullByDefault
  42 public class StationHandler extends BaseThingHandler {
  43     private Logger logger = LoggerFactory.getLogger(StationHandler.class);
  44     private static final long MAX_STATUS_AGE_MINUTES = 1;
  45
  46     private @Nullable StationStatus currentStatus;
  47     private LocalDateTime lastUpdate = LocalDateTime.MIN;
  48
  49     public StationHandler(Thing thing) {
  50         super(thing);
  51     }
  52
  53     @Override
  54     public void handleCommand(ChannelUID channelUID, Command command) {
  55         if (isPortalOK()) {
  56             if (command instanceof RefreshType) {
  57                 scheduler.execute(() -> {
  58                     ensureRecentStatus();
  59                     updateChannelState(channelUID);
  60                 });
  61             }
  62         }
  63     }
  64
  65     private boolean isPortalOK() {
  66         PortalHandler portal = getPortal();
  67         return portal != null && portal.isLoggedIn();
  68     }
  69
  70     private void updateChannelState(ChannelUID channelUID) {
  71         if (!isPortalOK()) {
  72             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE,
  73                     "Unable to update station info. Check Bridge status for details.");
  74             return;
  75         }
  76         switch (channelUID.getId()) {
  77             case CHANNEL_CURRENT_OUTPUT:
  78                 updateState(channelUID.getId(), StateHelper.getCurrentOutput(currentStatus));
  79                 break;
  80             case CHANNEL_TODAY_TOTAL:
  81                 updateState(channelUID.getId(), StateHelper.getDayTotal(currentStatus));
  82                 break;
  83             case CHANNEL_MONTH_TOTAL:
  84                 updateState(channelUID.getId(), StateHelper.getMonthTotal(currentStatus));
  85                 break;
  86             case CHANNEL_OVERALL_TOTAL:
  87                 updateState(channelUID.getId(), StateHelper.getOverallTotal(currentStatus));
  88                 break;
  89             case CHANNEL_TODAY_INCOME:
  90                 updateState(channelUID.getId(), StateHelper.getDayIncome(currentStatus));
  91                 break;
  92             case CHANNEL_TOTAL_INCOME:
  93                 updateState(channelUID.getId(), StateHelper.getTotalIncome(currentStatus));
  94                 break;
  95             case CHANNEL_LASTUPDATE:
  96                 updateState(channelUID.getId(), StateHelper.getLastUpdate(currentStatus));
  97                 break;
  98             default:
  99                 logger.debug("No mapping found for channel {}", channelUID.getId());
 100         }
 101     }
 102
 103     private void ensureRecentStatus() {
 104         if (lastUpdate.isBefore(LocalDateTime.now().minusMinutes(MAX_STATUS_AGE_MINUTES))) {
 105             updateStation();
 106         }
 107     }
 108
 109     @Override
 110     public void initialize() {
 111         updateStatus(ThingStatus.UNKNOWN);
 112         scheduler.execute(() -> {
 113             try {
 114                 scheduler.scheduleWithFixedDelay(() -> ensureRecentStatus(), 0, getUpdateInterval(), TimeUnit.MINUTES);
 115             } catch (Exception e) {
 116                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.HANDLER_INITIALIZING_ERROR,
 117                         "Unable to update station info. Check Bridge status for details.");
 118             }
 119         });
 120     }
 121
 122     private long getUpdateInterval() {
 123         PortalHandler portal = getPortal();
 124         if (portal == null) {
 125             return SEMSPortalBindingConstants.DEFAULT_UPDATE_INTERVAL_MINUTES;
 126         }
 127         return portal.getUpdateInterval();
 128     }
 129
 130     private void updateStation() {
 131         if (!isPortalOK()) {
 132             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE,
 133                     "Unable to update station info. Check Bridge status for details.");
 134             return;
 135         }
 136         PortalHandler portal = getPortal();
 137         if (portal != null) {
 138             try {
 139                 currentStatus = portal.getStationStatus(getStationUUID());
 140                 StationStatus localCurrentStatus = currentStatus;
 141                 if (localCurrentStatus != null && localCurrentStatus.isOperational()) {
 142                     updateStatus(ThingStatus.ONLINE);
 143                 } else {
 144                     updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.NONE, "Station not operational");
 145                 }
 146                 updateAllChannels();
 147             } catch (CommunicationException commEx) {
 148                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, commEx.getMessage());
 149             } catch (ConfigurationException confEx) {
 150                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, confEx.getMessage());
 151             }
 152         } else {
 153             logger.debug("Unable to find portal for thing {}", getThing().getUID());
 154         }
 155     }
 156
 157     private String getStationUUID() {
 158         String uuid = getThing().getProperties().get(STATION_UUID);
 159         if (uuid == null) {
 160             Object uuidObj = getThing().getConfiguration().get(STATION_UUID);
 161             if (uuidObj instanceof String stringValue) {
 162                 uuid = stringValue;
 163             }
 164         }
 165         return uuid == null ? "" : uuid;
 166     }
 167
 168     private void updateAllChannels() {
 169         for (String channelName : ALL_CHANNELS) {
 170             Channel channel = thing.getChannel(channelName);
 171             if (channel != null) {
 172                 updateChannelState(channel.getUID());
 173             }
 174         }
 175     }
 176
 177     private @Nullable PortalHandler getPortal() {
 178         Bridge bridge = getBridge();
 179         if (bridge != null && bridge.getHandler() != null && bridge.getHandler() instanceof PortalHandler) {
 180             return (PortalHandler) bridge.getHandler();
 181         }
 182         return null;
 183     }
 184 }