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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.homematic.internal.communicator.parser;
  14
  15 import static org.openhab.binding.homematic.internal.misc.HomematicConstants.*;
  16
  17 import java.io.IOException;
  18 import java.util.ArrayList;
  19 import java.util.Arrays;
  20 import java.util.List;
  21
  22 import org.openhab.binding.homematic.internal.model.HmChannel;
  23 import org.openhab.binding.homematic.internal.model.HmDatapoint;
  24 import org.openhab.binding.homematic.internal.model.HmDatapointInfo;
  25 import org.openhab.binding.homematic.internal.model.HmParamsetType;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * Extracts the possible options from the remote control metadata and parses the DISPLAY_OPTIONS virtual datapoint.
  31  *
  32  * @author Gerhard Riegler - Initial contribution
  33  */
  34
  35 public class DisplayOptionsParser extends CommonRpcParser<Object, Void> {
  36     private final Logger logger = LoggerFactory.getLogger(DisplayOptionsParser.class);
  37     private static final String[] onOff = new String[] { "ON", "OFF" };
  38     private static final int IDX_NOT_FOUND = -1;
  39     private HmChannel channel;
  40     private String text;
  41     private int beep = 0;
  42     private int backlight = 0;
  43     private int unit = 0;
  44     private List<String> symbols = new ArrayList<>();
  45
  46     public DisplayOptionsParser(HmChannel channel) {
  47         this.channel = channel;
  48     }
  49
  50     @Override
  51     public Void parse(Object value) throws IOException {
  52         String valueString = toString(value);
  53         String optionsString = valueString == null ? null : valueString.replace(" ", "");
  54         if (optionsString != null) {
  55             int idxFirstSep = optionsString.indexOf(",");
  56             if (idxFirstSep == -1) {
  57                 text = optionsString;
  58                 optionsString = "";
  59             } else {
  60                 text = optionsString.substring(0, idxFirstSep);
  61                 optionsString = optionsString.substring(idxFirstSep + 1);
  62             }
  63
  64             String[] options = optionsString.split(",");
  65
  66             String[] availableSymbols = getAvailableSymbols(channel);
  67             String[] availableBeepOptions = getAvailableOptions(channel, DATAPOINT_NAME_BEEP);
  68             String[] availableBacklightOptions = getAvailableOptions(channel, DATAPOINT_NAME_BACKLIGHT);
  69             String[] availableUnitOptions = getAvailableOptions(channel, DATAPOINT_NAME_UNIT);
  70
  71             String deviceAddress = channel.getDevice().getAddress();
  72             if (logger.isDebugEnabled()) {
  73                 logger.debug("Remote control '{}' supports these beep options: {}", deviceAddress,
  74                         availableBeepOptions);
  75                 logger.debug("Remote control '{}' supports these backlight options: {}", deviceAddress,
  76                         availableBacklightOptions);
  77                 logger.debug("Remote control '{}' supports these unit options: {}", deviceAddress,
  78                         availableUnitOptions);
  79                 logger.debug("Remote control '{}' supports these symbols: {}", deviceAddress, symbols);
  80             }
  81
  82             if (options != null) {
  83                 for (String parameter : options) {
  84                     logger.debug("Parsing remote control option '{}'", parameter);
  85                     beep = getIntParameter(availableBeepOptions, beep, parameter, DATAPOINT_NAME_BEEP, deviceAddress);
  86                     backlight = getIntParameter(availableBacklightOptions, backlight, parameter,
  87                             DATAPOINT_NAME_BACKLIGHT, deviceAddress);
  88                     unit = getIntParameter(availableUnitOptions, unit, parameter, DATAPOINT_NAME_UNIT, deviceAddress);
  89
  90                     if (findInArray(availableSymbols, parameter) != IDX_NOT_FOUND) {
  91                         logger.debug("Symbol '{}' found for remote control '{}'", parameter, deviceAddress);
  92                         symbols.add(parameter);
  93                     }
  94                 }
  95             }
  96         }
  97         return null;
  98     }
  99
 100     /**
 101      * Returns the first found parameter index of the options.
 102      */
 103     private int getIntParameter(String[] options, int currentValue, String parameter, String parameterName,
 104             String deviceAddress) {
 105         int idx = findInArray(options, parameter);
 106         if (idx != IDX_NOT_FOUND) {
 107             if (currentValue == 0) {
 108                 logger.debug("{} option '{}' found at index {} for remote control '{}'", parameterName, parameter,
 109                         idx + 1, deviceAddress);
 110                 return idx + 1;
 111             } else {
 112                 logger.warn("{} option already set for remote control '{}', ignoring '{}'!", parameterName,
 113                         deviceAddress, parameter);
 114                 return currentValue;
 115             }
 116         } else {
 117             return currentValue;
 118         }
 119     }
 120
 121     /**
 122      * Returns all possible options from the given datapoint.
 123      */
 124     private String[] getAvailableOptions(HmChannel channel, String datapointName) {
 125         HmDatapointInfo dpInfo = HmDatapointInfo.createValuesInfo(channel, datapointName);
 126         HmDatapoint dp = channel.getDatapoint(dpInfo);
 127         if (dp != null) {
 128             String[] dpOpts = dp.getOptions();
 129             String[] options = new String[dpOpts.length - 1];
 130             options = Arrays.copyOfRange(dpOpts, 1, dpOpts.length);
 131             for (String onOffString : onOff) {
 132                 int onIdx = findInArray(options, onOffString);
 133                 if (onIdx != IDX_NOT_FOUND) {
 134                     options[onIdx] = datapointName + "_" + onOffString;
 135                 }
 136             }
 137             return options;
 138         }
 139         return new String[0];
 140     }
 141
 142     private int findInArray(String[] arr, String searchString) {
 143         if (arr.length == 0) {
 144             return IDX_NOT_FOUND;
 145         }
 146         for (int i = 0; i < arr.length; i++) {
 147             if (arr[i].equals(searchString)) {
 148                 return i;
 149             }
 150         }
 151         return IDX_NOT_FOUND;
 152     }
 153
 154     /**
 155      * Returns all possible symbols from the remote control.
 156      */
 157     private String[] getAvailableSymbols(HmChannel channel) {
 158         List<String> symbols = new ArrayList<>();
 159         for (HmDatapoint datapoint : channel.getDatapoints()) {
 160             if (!datapoint.isReadOnly() && datapoint.isBooleanType()
 161                     && datapoint.getParamsetType() == HmParamsetType.VALUES
 162                     && !DATAPOINT_NAME_SUBMIT.equals(datapoint.getName())
 163                     && !DATAPOINT_NAME_INSTALL_TEST.equals(datapoint.getName())) {
 164                 symbols.add(datapoint.getName());
 165             }
 166         }
 167         return symbols.toArray(new String[0]);
 168     }
 169
 170     /**
 171      * Returns the parsed text.
 172      */
 173     public String getText() {
 174         return text;
 175     }
 176
 177     /**
 178      * Returns the parsed beep value.
 179      */
 180     public int getBeep() {
 181         return beep;
 182     }
 183
 184     /**
 185      * Returns the parsed backlight value.
 186      */
 187     public int getBacklight() {
 188         return backlight;
 189     }
 190
 191     /**
 192      * Returns the parsed unit value.
 193      */
 194     public int getUnit() {
 195         return unit;
 196     }
 197
 198     /**
 199      * Returns the parsed symbols.
 200      */
 201     public List<String> getSymbols() {
 202         return symbols;
 203     }
 204 }