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   1 /**
   2  * Copyright (c) 2010-2022 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.rotel.internal.communication;
  14
  15 import static org.openhab.binding.rotel.internal.RotelBindingConstants.*;
  16 import static org.openhab.binding.rotel.internal.protocol.hex.RotelHexProtocolHandler.START;
  17
  18 import java.io.InterruptedIOException;
  19 import java.nio.charset.StandardCharsets;
  20 import java.util.Arrays;
  21 import java.util.List;
  22 import java.util.Map;
  23 import java.util.Objects;
  24 import java.util.StringJoiner;
  25
  26 import org.eclipse.jdt.annotation.NonNullByDefault;
  27 import org.eclipse.jdt.annotation.Nullable;
  28 import org.openhab.binding.rotel.internal.RotelException;
  29 import org.openhab.binding.rotel.internal.RotelModel;
  30 import org.openhab.binding.rotel.internal.RotelPlayStatus;
  31 import org.openhab.binding.rotel.internal.RotelRepeatMode;
  32 import org.openhab.binding.rotel.internal.protocol.RotelAbstractProtocolHandler;
  33 import org.openhab.binding.rotel.internal.protocol.RotelProtocol;
  34 import org.openhab.binding.rotel.internal.protocol.hex.RotelHexProtocolHandler;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * Class for simulating the communication with the Rotel device
  40  *
  41  * @author Laurent Garnier - Initial contribution
  42  */
  43 @NonNullByDefault
  44 public class RotelSimuConnector extends RotelConnector {
  45
  46     private static final int STEP_TONE_LEVEL = 1;
  47
  48     private final Logger logger = LoggerFactory.getLogger(RotelSimuConnector.class);
  49
  50     private final RotelModel model;
  51     private final RotelProtocol protocol;
  52     private final Map<RotelSource, String> sourcesLabels;
  53
  54     private Object lock = new Object();
  55
  56     private byte[] feedbackMsg = new byte[1];
  57     private int idxInFeedbackMsg = feedbackMsg.length;
  58
  59     private boolean[] powers = { false, false, false, false, false };
  60     private RotelSource[] sources;
  61     private RotelSource recordSource;
  62     private boolean multiinput;
  63     private RotelDsp dsp = RotelDsp.CAT4_NONE;
  64     private int[] volumes = { 50, 10, 20, 30, 40 };
  65     private boolean[] mutes = { false, false, false, false, false };
  66     private boolean tcbypass;
  67     private int[] basses = { 0, 0, 0, 0, 0 };
  68     private int[] trebles = { 0, 0, 0, 0, 0 };
  69     private int[] balances = { 0, 0, 0, 0, 0 };
  70     private boolean showTreble;
  71     private boolean speakerA = true;
  72     private boolean speakerB = false;
  73     private RotelPlayStatus playStatus = RotelPlayStatus.STOPPED;
  74     private int track = 1;
  75     private boolean randomMode;
  76     private RotelRepeatMode repeatMode = RotelRepeatMode.OFF;
  77     private boolean selectingRecord;
  78     private int showZone;
  79     private int dimmer;
  80
  81     private int minVolume;
  82     private int maxVolume;
  83     private int minToneLevel;
  84     private int maxToneLevel;
  85     private int minBalance;
  86     private int maxBalance;
  87
  88     /**
  89      * Constructor
  90      *
  91      * @param model the projector model in use
  92      * @param protocolHandler the protocol handler
  93      * @param sourcesLabels the custom labels for sources
  94      * @param readerThreadName the name of thread to be created
  95      */
  96     public RotelSimuConnector(RotelModel model, RotelAbstractProtocolHandler protocolHandler,
  97             Map<RotelSource, String> sourcesLabels, String readerThreadName) {
  98         super(protocolHandler, true, readerThreadName);
  99         this.model = model;
 100         this.protocol = protocolHandler.getProtocol();
 101         this.sourcesLabels = sourcesLabels;
 102         this.minVolume = 0;
 103         this.maxVolume = model.hasVolumeControl() ? model.getVolumeMax() : 0;
 104         this.maxToneLevel = model.hasToneControl() ? model.getToneLevelMax() : 0;
 105         this.minToneLevel = -this.maxToneLevel;
 106         this.maxBalance = model.hasBalanceControl() ? model.getBalanceLevelMax() : 0;
 107         this.minBalance = -this.maxBalance;
 108         List<RotelSource> modelSources = model.getSources();
 109         RotelSource source = modelSources.isEmpty() ? RotelSource.CAT0_CD : modelSources.get(0);
 110         sources = new RotelSource[] { source, source, source, source, source };
 111         recordSource = source;
 112     }
 113
 114     @Override
 115     public synchronized void open() throws RotelException {
 116         logger.debug("Opening simulated connection");
 117         readerThread.start();
 118         setConnected(true);
 119         logger.debug("Simulated connection opened");
 120     }
 121
 122     @Override
 123     public synchronized void close() {
 124         logger.debug("Closing simulated connection");
 125         super.cleanup();
 126         setConnected(false);
 127         logger.debug("Simulated connection closed");
 128     }
 129
 130     @Override
 131     protected int readInput(byte[] dataBuffer) throws RotelException, InterruptedIOException {
 132         synchronized (lock) {
 133             int len = feedbackMsg.length - idxInFeedbackMsg;
 134             if (len > 0) {
 135                 if (len > dataBuffer.length) {
 136                     len = dataBuffer.length;
 137                 }
 138                 System.arraycopy(feedbackMsg, idxInFeedbackMsg, dataBuffer, 0, len);
 139                 idxInFeedbackMsg += len;
 140                 return len;
 141             }
 142         }
 143         // Give more chance to someone else than the reader thread to get the lock
 144         try {
 145             Thread.sleep(20);
 146         } catch (InterruptedException e) {
 147             Thread.currentThread().interrupt();
 148         }
 149         return 0;
 150     }
 151
 152     /**
 153      * Built the simulated feedback message for a sent command
 154      *
 155      * @param cmd the sent command
 156      * @param value the integer value considered in the sent command for volume, bass or treble adjustment
 157      */
 158     public void buildFeedbackMessage(RotelCommand cmd, @Nullable Integer value) {
 159         String text = buildSourceLine1Response();
 160         String textLine1Left = buildSourceLine1LeftResponse();
 161         String textLine1Right = buildVolumeLine1RightResponse();
 162         String textLine2 = "";
 163         String textAscii = "";
 164         boolean accepted = true;
 165         boolean resetZone = true;
 166         int numZone = 0;
 167         switch (cmd) {
 168             case ZONE1_VOLUME_UP:
 169             case ZONE1_VOLUME_DOWN:
 170             case ZONE1_VOLUME_SET:
 171             case ZONE1_MUTE_TOGGLE:
 172             case ZONE1_MUTE_ON:
 173             case ZONE1_MUTE_OFF:
 174             case ZONE1_BASS_UP:
 175             case ZONE1_BASS_DOWN:
 176             case ZONE1_BASS_SET:
 177             case ZONE1_TREBLE_UP:
 178             case ZONE1_TREBLE_DOWN:
 179             case ZONE1_TREBLE_SET:
 180             case ZONE1_BALANCE_LEFT:
 181             case ZONE1_BALANCE_RIGHT:
 182             case ZONE1_BALANCE_SET:
 183                 numZone = 1;
 184                 break;
 185             case ZONE2_POWER_OFF:
 186             case ZONE2_POWER_ON:
 187             case ZONE2_VOLUME_UP:
 188             case ZONE2_VOLUME_DOWN:
 189             case ZONE2_VOLUME_SET:
 190             case ZONE2_MUTE_TOGGLE:
 191             case ZONE2_MUTE_ON:
 192             case ZONE2_MUTE_OFF:
 193             case ZONE2_BASS_UP:
 194             case ZONE2_BASS_DOWN:
 195             case ZONE2_BASS_SET:
 196             case ZONE2_TREBLE_UP:
 197             case ZONE2_TREBLE_DOWN:
 198             case ZONE2_TREBLE_SET:
 199             case ZONE2_BALANCE_LEFT:
 200             case ZONE2_BALANCE_RIGHT:
 201             case ZONE2_BALANCE_SET:
 202                 numZone = 2;
 203                 break;
 204             case ZONE3_POWER_OFF:
 205             case ZONE3_POWER_ON:
 206             case ZONE3_VOLUME_UP:
 207             case ZONE3_VOLUME_DOWN:
 208             case ZONE3_VOLUME_SET:
 209             case ZONE3_MUTE_TOGGLE:
 210             case ZONE3_MUTE_ON:
 211             case ZONE3_MUTE_OFF:
 212             case ZONE3_BASS_UP:
 213             case ZONE3_BASS_DOWN:
 214             case ZONE3_BASS_SET:
 215             case ZONE3_TREBLE_UP:
 216             case ZONE3_TREBLE_DOWN:
 217             case ZONE3_TREBLE_SET:
 218             case ZONE3_BALANCE_LEFT:
 219             case ZONE3_BALANCE_RIGHT:
 220             case ZONE3_BALANCE_SET:
 221                 numZone = 3;
 222                 break;
 223             case ZONE4_POWER_OFF:
 224             case ZONE4_POWER_ON:
 225             case ZONE4_VOLUME_UP:
 226             case ZONE4_VOLUME_DOWN:
 227             case ZONE4_VOLUME_SET:
 228             case ZONE4_MUTE_TOGGLE:
 229             case ZONE4_MUTE_ON:
 230             case ZONE4_MUTE_OFF:
 231             case ZONE4_BASS_UP:
 232             case ZONE4_BASS_DOWN:
 233             case ZONE4_BASS_SET:
 234             case ZONE4_TREBLE_UP:
 235             case ZONE4_TREBLE_DOWN:
 236             case ZONE4_TREBLE_SET:
 237             case ZONE4_BALANCE_LEFT:
 238             case ZONE4_BALANCE_RIGHT:
 239             case ZONE4_BALANCE_SET:
 240                 numZone = 4;
 241                 break;
 242             default:
 243                 break;
 244         }
 245         switch (cmd) {
 246             case DISPLAY_REFRESH:
 247                 break;
 248             case POWER_OFF:
 249             case MAIN_ZONE_POWER_OFF:
 250                 powers[0] = false;
 251                 if (model.getNumberOfZones() > 1 && !model.hasPowerControlPerZone()) {
 252                     for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
 253                         powers[zone] = false;
 254                     }
 255                 }
 256                 text = buildSourceLine1Response();
 257                 textLine1Left = buildSourceLine1LeftResponse();
 258                 textLine1Right = buildVolumeLine1RightResponse();
 259                 textAscii = buildPowerAsciiResponse();
 260                 break;
 261             case POWER_ON:
 262             case MAIN_ZONE_POWER_ON:
 263                 powers[0] = true;
 264                 if (model.getNumberOfZones() > 1 && !model.hasPowerControlPerZone()) {
 265                     for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
 266                         powers[zone] = true;
 267                     }
 268                 }
 269                 text = buildSourceLine1Response();
 270                 textLine1Left = buildSourceLine1LeftResponse();
 271                 textLine1Right = buildVolumeLine1RightResponse();
 272                 textAscii = buildPowerAsciiResponse();
 273                 break;
 274             case POWER:
 275                 textAscii = buildPowerAsciiResponse();
 276                 break;
 277             case ZONE2_POWER_OFF:
 278             case ZONE3_POWER_OFF:
 279             case ZONE4_POWER_OFF:
 280                 powers[numZone] = false;
 281                 text = textLine2 = buildZonePowerResponse(numZone);
 282                 showZone = numZone;
 283                 resetZone = false;
 284                 break;
 285             case ZONE2_POWER_ON:
 286             case ZONE3_POWER_ON:
 287             case ZONE4_POWER_ON:
 288                 powers[numZone] = true;
 289                 text = textLine2 = buildZonePowerResponse(numZone);
 290                 showZone = numZone;
 291                 resetZone = false;
 292                 break;
 293             case RECORD_FONCTION_SELECT:
 294                 if (model.getNumberOfZones() > 1 && model.getZoneSelectCmd() == cmd) {
 295                     showZone++;
 296                     if (showZone >= model.getNumberOfZones()) {
 297                         showZone = 1;
 298                         if (!powers[0]) {
 299                             showZone++;
 300                         }
 301                     }
 302                 } else {
 303                     showZone = 1;
 304                 }
 305                 if (showZone == 1) {
 306                     selectingRecord = powers[0];
 307                     showTreble = false;
 308                     textLine2 = buildRecordResponse();
 309                 } else if (showZone >= 2 && showZone <= 4) {
 310                     selectingRecord = false;
 311                     text = textLine2 = buildZonePowerResponse(showZone);
 312                 }
 313                 resetZone = false;
 314                 break;
 315             case ZONE_SELECT:
 316                 if (model.getNumberOfZones() == 1 || (model.getNumberOfZones() > 2 && model.getZoneSelectCmd() == cmd)
 317                         || (showZone == 1 && model.getZoneSelectCmd() != cmd)) {
 318                     accepted = false;
 319                 } else {
 320                     if (model.getZoneSelectCmd() == cmd) {
 321                         if (!powers[0] && !powers[2]) {
 322                             showZone = 2;
 323                             powers[2] = true;
 324                         } else if (showZone == 2) {
 325                             powers[2] = !powers[2];
 326                         } else {
 327                             showZone = 2;
 328                         }
 329                     } else if (showZone >= 2 && showZone <= 4) {
 330                         powers[showZone] = !powers[showZone];
 331                     }
 332                     if (showZone >= 2 && showZone <= 4) {
 333                         text = textLine2 = buildZonePowerResponse(showZone);
 334                     }
 335                     resetZone = false;
 336                 }
 337                 break;
 338             default:
 339                 accepted = false;
 340                 break;
 341         }
 342         if (!accepted && numZone > 0 && powers[numZone]) {
 343             accepted = true;
 344             switch (cmd) {
 345                 case ZONE1_VOLUME_UP:
 346                 case ZONE2_VOLUME_UP:
 347                 case ZONE3_VOLUME_UP:
 348                 case ZONE4_VOLUME_UP:
 349                     if (volumes[numZone] < maxVolume) {
 350                         volumes[numZone]++;
 351                     }
 352                     text = textLine2 = buildZoneVolumeResponse(numZone);
 353                     textAscii = buildVolumeAsciiResponse();
 354                     break;
 355                 case ZONE1_VOLUME_DOWN:
 356                 case ZONE2_VOLUME_DOWN:
 357                 case ZONE3_VOLUME_DOWN:
 358                 case ZONE4_VOLUME_DOWN:
 359                     if (volumes[numZone] > minVolume) {
 360                         volumes[numZone]--;
 361                     }
 362                     text = textLine2 = buildZoneVolumeResponse(numZone);
 363                     textAscii = buildVolumeAsciiResponse();
 364                     break;
 365                 case ZONE1_VOLUME_SET:
 366                 case ZONE2_VOLUME_SET:
 367                 case ZONE3_VOLUME_SET:
 368                 case ZONE4_VOLUME_SET:
 369                     if (value != null) {
 370                         volumes[numZone] = value;
 371                     }
 372                     text = textLine2 = buildZoneVolumeResponse(numZone);
 373                     textAscii = buildVolumeAsciiResponse();
 374                     break;
 375                 case ZONE1_MUTE_TOGGLE:
 376                 case ZONE2_MUTE_TOGGLE:
 377                 case ZONE3_MUTE_TOGGLE:
 378                 case ZONE4_MUTE_TOGGLE:
 379                     mutes[numZone] = !mutes[numZone];
 380                     text = textLine2 = buildZoneVolumeResponse(numZone);
 381                     textAscii = buildMuteAsciiResponse();
 382                     break;
 383                 case ZONE1_MUTE_ON:
 384                 case ZONE2_MUTE_ON:
 385                 case ZONE3_MUTE_ON:
 386                 case ZONE4_MUTE_ON:
 387                     mutes[numZone] = true;
 388                     text = textLine2 = buildZoneVolumeResponse(numZone);
 389                     textAscii = buildMuteAsciiResponse();
 390                     break;
 391                 case ZONE1_MUTE_OFF:
 392                 case ZONE2_MUTE_OFF:
 393                 case ZONE3_MUTE_OFF:
 394                 case ZONE4_MUTE_OFF:
 395                     mutes[numZone] = false;
 396                     text = textLine2 = buildZoneVolumeResponse(numZone);
 397                     textAscii = buildMuteAsciiResponse();
 398                     break;
 399                 case ZONE1_BASS_UP:
 400                 case ZONE2_BASS_UP:
 401                 case ZONE3_BASS_UP:
 402                 case ZONE4_BASS_UP:
 403                     if (!tcbypass && basses[numZone] < maxToneLevel) {
 404                         basses[numZone] += STEP_TONE_LEVEL;
 405                     }
 406                     textAscii = buildBassAsciiResponse();
 407                     break;
 408                 case ZONE1_BASS_DOWN:
 409                 case ZONE2_BASS_DOWN:
 410                 case ZONE3_BASS_DOWN:
 411                 case ZONE4_BASS_DOWN:
 412                     if (!tcbypass && basses[numZone] > minToneLevel) {
 413                         basses[numZone] -= STEP_TONE_LEVEL;
 414                     }
 415                     textAscii = buildBassAsciiResponse();
 416                     break;
 417                 case ZONE1_BASS_SET:
 418                 case ZONE2_BASS_SET:
 419                 case ZONE3_BASS_SET:
 420                 case ZONE4_BASS_SET:
 421                     if (!tcbypass && value != null) {
 422                         basses[numZone] = value;
 423                     }
 424                     textAscii = buildBassAsciiResponse();
 425                     break;
 426                 case ZONE1_TREBLE_UP:
 427                 case ZONE2_TREBLE_UP:
 428                 case ZONE3_TREBLE_UP:
 429                 case ZONE4_TREBLE_UP:
 430                     if (!tcbypass && trebles[numZone] < maxToneLevel) {
 431                         trebles[numZone] += STEP_TONE_LEVEL;
 432                     }
 433                     textAscii = buildTrebleAsciiResponse();
 434                     break;
 435                 case ZONE1_TREBLE_DOWN:
 436                 case ZONE2_TREBLE_DOWN:
 437                 case ZONE3_TREBLE_DOWN:
 438                 case ZONE4_TREBLE_DOWN:
 439                     if (!tcbypass && trebles[numZone] > minToneLevel) {
 440                         trebles[numZone] -= STEP_TONE_LEVEL;
 441                     }
 442                     textAscii = buildTrebleAsciiResponse();
 443                     break;
 444                 case ZONE1_TREBLE_SET:
 445                 case ZONE2_TREBLE_SET:
 446                 case ZONE3_TREBLE_SET:
 447                 case ZONE4_TREBLE_SET:
 448                     if (!tcbypass && value != null) {
 449                         trebles[numZone] = value;
 450                     }
 451                     textAscii = buildTrebleAsciiResponse();
 452                     break;
 453                 case ZONE1_BALANCE_LEFT:
 454                 case ZONE2_BALANCE_LEFT:
 455                 case ZONE3_BALANCE_LEFT:
 456                 case ZONE4_BALANCE_LEFT:
 457                     if (balances[numZone] > minBalance) {
 458                         balances[numZone]--;
 459                     }
 460                     textAscii = buildBalanceAsciiResponse();
 461                     break;
 462                 case ZONE1_BALANCE_RIGHT:
 463                 case ZONE2_BALANCE_RIGHT:
 464                 case ZONE3_BALANCE_RIGHT:
 465                 case ZONE4_BALANCE_RIGHT:
 466                     if (balances[numZone] < maxBalance) {
 467                         balances[numZone]++;
 468                     }
 469                     textAscii = buildBalanceAsciiResponse();
 470                     break;
 471                 case ZONE1_BALANCE_SET:
 472                 case ZONE2_BALANCE_SET:
 473                 case ZONE3_BALANCE_SET:
 474                 case ZONE4_BALANCE_SET:
 475                     if (value != null) {
 476                         balances[numZone] = value;
 477                     }
 478                     textAscii = buildBalanceAsciiResponse();
 479                     break;
 480                 default:
 481                     accepted = false;
 482                     break;
 483             }
 484         }
 485         if (!accepted) {
 486             // Check if command is a change of source input for a zone
 487             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
 488                 if (powers[zone]) {
 489                     try {
 490                         sources[zone] = model.getZoneSourceFromCommand(cmd, zone);
 491                         text = textLine2 = buildZonePowerResponse(zone);
 492                         textAscii = buildSourceAsciiResponse();
 493                         mutes[zone] = false;
 494                         accepted = true;
 495                         showZone = zone;
 496                         resetZone = false;
 497                         break;
 498                     } catch (RotelException e) {
 499                     }
 500                 }
 501             }
 502         }
 503         if (!accepted && powers[2] && !model.hasZoneCommands(2) && model.getNumberOfZones() > 1 && showZone == 2) {
 504             accepted = true;
 505             switch (cmd) {
 506                 case VOLUME_UP:
 507                     if (volumes[2] < maxVolume) {
 508                         volumes[2]++;
 509                     }
 510                     text = textLine2 = buildZoneVolumeResponse(2);
 511                     resetZone = false;
 512                     break;
 513                 case VOLUME_DOWN:
 514                     if (volumes[2] > minVolume) {
 515                         volumes[2]--;
 516                     }
 517                     text = textLine2 = buildZoneVolumeResponse(2);
 518                     resetZone = false;
 519                     break;
 520                 case VOLUME_SET:
 521                     if (value != null) {
 522                         volumes[2] = value;
 523                     }
 524                     text = textLine2 = buildZoneVolumeResponse(2);
 525                     resetZone = false;
 526                     break;
 527                 default:
 528                     accepted = false;
 529                     break;
 530             }
 531             if (!accepted) {
 532                 try {
 533                     sources[2] = model.getSourceFromCommand(cmd);
 534                     text = textLine2 = buildZonePowerResponse(2);
 535                     mutes[2] = false;
 536                     accepted = true;
 537                     resetZone = false;
 538                 } catch (RotelException e) {
 539                 }
 540             }
 541         }
 542         if (!accepted && powers[0]) {
 543             accepted = true;
 544             switch (cmd) {
 545                 case UPDATE_AUTO:
 546                     textAscii = buildAsciiResponse(
 547                             protocol == RotelProtocol.ASCII_V1 ? KEY_DISPLAY_UPDATE : KEY_UPDATE_MODE, AUTO);
 548                     break;
 549                 case UPDATE_MANUAL:
 550                     textAscii = buildAsciiResponse(
 551                             protocol == RotelProtocol.ASCII_V1 ? KEY_DISPLAY_UPDATE : KEY_UPDATE_MODE, MANUAL);
 552                     break;
 553                 case VOLUME_GET_MIN:
 554                     textAscii = buildAsciiResponse(KEY_VOLUME_MIN, minVolume);
 555                     break;
 556                 case VOLUME_GET_MAX:
 557                     textAscii = buildAsciiResponse(KEY_VOLUME_MAX, maxVolume);
 558                     break;
 559                 case VOLUME_UP:
 560                 case MAIN_ZONE_VOLUME_UP:
 561                     if (volumes[0] < maxVolume) {
 562                         volumes[0]++;
 563                     }
 564                     text = buildVolumeLine1Response();
 565                     textLine1Right = buildVolumeLine1RightResponse();
 566                     textAscii = buildVolumeAsciiResponse();
 567                     break;
 568                 case VOLUME_DOWN:
 569                 case MAIN_ZONE_VOLUME_DOWN:
 570                     if (volumes[0] > minVolume) {
 571                         volumes[0]--;
 572                     }
 573                     text = buildVolumeLine1Response();
 574                     textLine1Right = buildVolumeLine1RightResponse();
 575                     textAscii = buildVolumeAsciiResponse();
 576                     break;
 577                 case VOLUME_SET:
 578                     if (value != null) {
 579                         volumes[0] = value;
 580                     }
 581                     text = buildVolumeLine1Response();
 582                     textLine1Right = buildVolumeLine1RightResponse();
 583                     textAscii = buildVolumeAsciiResponse();
 584                     break;
 585                 case VOLUME_GET:
 586                     textAscii = buildVolumeAsciiResponse();
 587                     break;
 588                 case MUTE_TOGGLE:
 589                 case MAIN_ZONE_MUTE_TOGGLE:
 590                     mutes[0] = !mutes[0];
 591                     text = buildSourceLine1Response();
 592                     textLine1Right = buildVolumeLine1RightResponse();
 593                     textAscii = buildMuteAsciiResponse();
 594                     break;
 595                 case MUTE_ON:
 596                 case MAIN_ZONE_MUTE_ON:
 597                     mutes[0] = true;
 598                     text = buildSourceLine1Response();
 599                     textLine1Right = buildVolumeLine1RightResponse();
 600                     textAscii = buildMuteAsciiResponse();
 601                     break;
 602                 case MUTE_OFF:
 603                 case MAIN_ZONE_MUTE_OFF:
 604                     mutes[0] = false;
 605                     text = buildSourceLine1Response();
 606                     textLine1Right = buildVolumeLine1RightResponse();
 607                     textAscii = buildMuteAsciiResponse();
 608                     break;
 609                 case MUTE:
 610                     textAscii = buildMuteAsciiResponse();
 611                     break;
 612                 case TONE_MAX:
 613                     textAscii = buildAsciiResponse(KEY_TONE_MAX, String.format("%02d", maxToneLevel));
 614                     break;
 615                 case TONE_CONTROLS_ON:
 616                     tcbypass = false;
 617                     textAscii = buildAsciiResponse(KEY_TONE, !tcbypass);
 618                     break;
 619                 case TONE_CONTROLS_OFF:
 620                     tcbypass = true;
 621                     textAscii = buildAsciiResponse(KEY_TONE, !tcbypass);
 622                     break;
 623                 case TONE_CONTROLS:
 624                     textAscii = buildAsciiResponse(KEY_TONE, !tcbypass);
 625                     break;
 626                 case TCBYPASS_ON:
 627                     tcbypass = true;
 628                     textAscii = buildAsciiResponse(KEY_TCBYPASS, tcbypass);
 629                     break;
 630                 case TCBYPASS_OFF:
 631                     tcbypass = false;
 632                     textAscii = buildAsciiResponse(KEY_TCBYPASS, tcbypass);
 633                     break;
 634                 case TCBYPASS:
 635                     textAscii = buildAsciiResponse(KEY_TCBYPASS, tcbypass);
 636                     break;
 637                 case BASS_UP:
 638                     if (!tcbypass && basses[0] < maxToneLevel) {
 639                         basses[0] += STEP_TONE_LEVEL;
 640                     }
 641                     text = buildBassLine1Response();
 642                     textLine1Right = buildBassLine1RightResponse();
 643                     textAscii = buildBassAsciiResponse();
 644                     break;
 645                 case BASS_DOWN:
 646                     if (!tcbypass && basses[0] > minToneLevel) {
 647                         basses[0] -= STEP_TONE_LEVEL;
 648                     }
 649                     text = buildBassLine1Response();
 650                     textLine1Right = buildBassLine1RightResponse();
 651                     textAscii = buildBassAsciiResponse();
 652                     break;
 653                 case BASS_SET:
 654                     if (!tcbypass && value != null) {
 655                         basses[0] = value;
 656                     }
 657                     text = buildBassLine1Response();
 658                     textLine1Right = buildBassLine1RightResponse();
 659                     textAscii = buildBassAsciiResponse();
 660                     break;
 661                 case BASS:
 662                     textAscii = buildBassAsciiResponse();
 663                     break;
 664                 case TREBLE_UP:
 665                     if (!tcbypass && trebles[0] < maxToneLevel) {
 666                         trebles[0] += STEP_TONE_LEVEL;
 667                     }
 668                     text = buildTrebleLine1Response();
 669                     textLine1Right = buildTrebleLine1RightResponse();
 670                     textAscii = buildTrebleAsciiResponse();
 671                     break;
 672                 case TREBLE_DOWN:
 673                     if (!tcbypass && trebles[0] > minToneLevel) {
 674                         trebles[0] -= STEP_TONE_LEVEL;
 675                     }
 676                     text = buildTrebleLine1Response();
 677                     textLine1Right = buildTrebleLine1RightResponse();
 678                     textAscii = buildTrebleAsciiResponse();
 679                     break;
 680                 case TREBLE_SET:
 681                     if (!tcbypass && value != null) {
 682                         trebles[0] = value;
 683                     }
 684                     text = buildTrebleLine1Response();
 685                     textLine1Right = buildTrebleLine1RightResponse();
 686                     textAscii = buildTrebleAsciiResponse();
 687                     break;
 688                 case TREBLE:
 689                     textAscii = buildTrebleAsciiResponse();
 690                     break;
 691                 case TONE_CONTROL_SELECT:
 692                     showTreble = !showTreble;
 693                     if (showTreble) {
 694                         text = buildTrebleLine1Response();
 695                         textLine1Right = buildTrebleLine1RightResponse();
 696                     } else {
 697                         text = buildBassLine1Response();
 698                         textLine1Right = buildBassLine1RightResponse();
 699                     }
 700                     break;
 701                 case BALANCE_LEFT:
 702                     if (balances[0] > minBalance) {
 703                         balances[0]--;
 704                     }
 705                     textAscii = buildBalanceAsciiResponse();
 706                     break;
 707                 case BALANCE_RIGHT:
 708                     if (balances[0] < maxBalance) {
 709                         balances[0]++;
 710                     }
 711                     textAscii = buildBalanceAsciiResponse();
 712                     break;
 713                 case BALANCE_SET:
 714                     if (value != null) {
 715                         balances[0] = value;
 716                     }
 717                     textAscii = buildBalanceAsciiResponse();
 718                     break;
 719                 case BALANCE:
 720                     textAscii = buildBalanceAsciiResponse();
 721                     break;
 722                 case SPEAKER_A_TOGGLE:
 723                     speakerA = !speakerA;
 724                     textAscii = buildSpeakerAsciiResponse();
 725                     break;
 726                 case SPEAKER_A_ON:
 727                     speakerA = true;
 728                     textAscii = buildSpeakerAsciiResponse();
 729                     break;
 730                 case SPEAKER_A_OFF:
 731                     speakerA = false;
 732                     textAscii = buildSpeakerAsciiResponse();
 733                     break;
 734                 case SPEAKER_B_TOGGLE:
 735                     speakerB = !speakerB;
 736                     textAscii = buildSpeakerAsciiResponse();
 737                     break;
 738                 case SPEAKER_B_ON:
 739                     speakerB = true;
 740                     textAscii = buildSpeakerAsciiResponse();
 741                     break;
 742                 case SPEAKER_B_OFF:
 743                     speakerB = false;
 744                     textAscii = buildSpeakerAsciiResponse();
 745                     break;
 746                 case SPEAKER:
 747                     textAscii = buildSpeakerAsciiResponse();
 748                     break;
 749                 case PLAY:
 750                     playStatus = RotelPlayStatus.PLAYING;
 751                     textAscii = buildPlayStatusAsciiResponse();
 752                     break;
 753                 case STOP:
 754                     playStatus = RotelPlayStatus.STOPPED;
 755                     textAscii = buildPlayStatusAsciiResponse();
 756                     break;
 757                 case PAUSE:
 758                     switch (playStatus) {
 759                         case PLAYING:
 760                             playStatus = RotelPlayStatus.PAUSED;
 761                             break;
 762                         case PAUSED:
 763                         case STOPPED:
 764                             playStatus = RotelPlayStatus.PLAYING;
 765                             break;
 766                     }
 767                     textAscii = buildPlayStatusAsciiResponse();
 768                     break;
 769                 case CD_PLAY_STATUS:
 770                 case PLAY_STATUS:
 771                     textAscii = buildPlayStatusAsciiResponse();
 772                     break;
 773                 case TRACK_FWD:
 774                     track++;
 775                     textAscii = buildTrackAsciiResponse();
 776                     break;
 777                 case TRACK_BACK:
 778                     if (track > 1) {
 779                         track--;
 780                     }
 781                     textAscii = buildTrackAsciiResponse();
 782                     break;
 783                 case TRACK:
 784                     textAscii = buildTrackAsciiResponse();
 785                     break;
 786                 case RANDOM_TOGGLE:
 787                     randomMode = !randomMode;
 788                     textAscii = buildRandomModeAsciiResponse();
 789                     break;
 790                 case RANDOM_MODE:
 791                     textAscii = buildRandomModeAsciiResponse();
 792                     break;
 793                 case REPEAT_TOGGLE:
 794                     switch (repeatMode) {
 795                         case TRACK:
 796                             repeatMode = RotelRepeatMode.DISC;
 797                             break;
 798                         case DISC:
 799                             repeatMode = RotelRepeatMode.OFF;
 800                             break;
 801                         case OFF:
 802                             repeatMode = RotelRepeatMode.TRACK;
 803                             break;
 804                     }
 805                     textAscii = buildRepeatModeAsciiResponse();
 806                     break;
 807                 case REPEAT_MODE:
 808                     textAscii = buildRepeatModeAsciiResponse();
 809                     break;
 810                 case SOURCE_MULTI_INPUT:
 811                     multiinput = !multiinput;
 812                     text = "MULTI IN " + (multiinput ? "ON" : "OFF");
 813                     try {
 814                         sources[0] = model.getSourceFromCommand(cmd);
 815                         textLine1Left = buildSourceLine1LeftResponse();
 816                         textAscii = buildSourceAsciiResponse();
 817                         mutes[0] = false;
 818                     } catch (RotelException e) {
 819                     }
 820                     break;
 821                 case SOURCE:
 822                 case INPUT:
 823                     textAscii = buildSourceAsciiResponse();
 824                     break;
 825                 case STEREO:
 826                     dsp = RotelDsp.CAT4_NONE;
 827                     textLine2 = "STEREO";
 828                     textAscii = buildDspAsciiResponse();
 829                     break;
 830                 case STEREO3:
 831                     dsp = RotelDsp.CAT4_STEREO3;
 832                     textLine2 = "DOLBY 3 STEREO";
 833                     textAscii = buildDspAsciiResponse();
 834                     break;
 835                 case STEREO5:
 836                     dsp = RotelDsp.CAT4_STEREO5;
 837                     textLine2 = "5CH STEREO";
 838                     textAscii = buildDspAsciiResponse();
 839                     break;
 840                 case STEREO7:
 841                     dsp = RotelDsp.CAT4_STEREO7;
 842                     textLine2 = "7CH STEREO";
 843                     textAscii = buildDspAsciiResponse();
 844                     break;
 845                 case STEREO9:
 846                     dsp = RotelDsp.CAT5_STEREO9;
 847                     textAscii = buildDspAsciiResponse();
 848                     break;
 849                 case STEREO11:
 850                     dsp = RotelDsp.CAT5_STEREO11;
 851                     textAscii = buildDspAsciiResponse();
 852                     break;
 853                 case DSP1:
 854                     dsp = RotelDsp.CAT4_DSP1;
 855                     textLine2 = "DSP 1";
 856                     textAscii = buildDspAsciiResponse();
 857                     break;
 858                 case DSP2:
 859                     dsp = RotelDsp.CAT4_DSP2;
 860                     textLine2 = "DSP 2";
 861                     textAscii = buildDspAsciiResponse();
 862                     break;
 863                 case DSP3:
 864                     dsp = RotelDsp.CAT4_DSP3;
 865                     textLine2 = "DSP 3";
 866                     textAscii = buildDspAsciiResponse();
 867                     break;
 868                 case DSP4:
 869                     dsp = RotelDsp.CAT4_DSP4;
 870                     textLine2 = "DSP 4";
 871                     textAscii = buildDspAsciiResponse();
 872                     break;
 873                 case PROLOGIC:
 874                     dsp = RotelDsp.CAT4_PROLOGIC;
 875                     textLine2 = "DOLBY PRO LOGIC";
 876                     textAscii = buildDspAsciiResponse();
 877                     break;
 878                 case PLII_CINEMA:
 879                     dsp = RotelDsp.CAT4_PLII_CINEMA;
 880                     textLine2 = "DOLBY PL  C";
 881                     textAscii = buildDspAsciiResponse();
 882                     break;
 883                 case PLII_MUSIC:
 884                     dsp = RotelDsp.CAT4_PLII_MUSIC;
 885                     textLine2 = "DOLBY PL  M";
 886                     textAscii = buildDspAsciiResponse();
 887                     break;
 888                 case PLII_GAME:
 889                     dsp = RotelDsp.CAT4_PLII_GAME;
 890                     textLine2 = "DOLBY PL  G";
 891                     textAscii = buildDspAsciiResponse();
 892                     break;
 893                 case PLIIZ:
 894                     dsp = RotelDsp.CAT4_PLIIZ;
 895                     textLine2 = "DOLBY PL z";
 896                     textAscii = buildDspAsciiResponse();
 897                     break;
 898                 case NEO6_MUSIC:
 899                     dsp = RotelDsp.CAT4_NEO6_MUSIC;
 900                     textLine2 = "DTS Neo:6 M";
 901                     textAscii = buildDspAsciiResponse();
 902                     break;
 903                 case NEO6_CINEMA:
 904                     dsp = RotelDsp.CAT4_NEO6_CINEMA;
 905                     textLine2 = "DTS Neo:6 C";
 906                     textAscii = buildDspAsciiResponse();
 907                     break;
 908                 case ATMOS:
 909                     dsp = RotelDsp.CAT5_ATMOS;
 910                     textAscii = buildDspAsciiResponse();
 911                     break;
 912                 case NEURAL_X:
 913                     dsp = RotelDsp.CAT5_NEURAL_X;
 914                     textAscii = buildDspAsciiResponse();
 915                     break;
 916                 case BYPASS:
 917                     dsp = RotelDsp.CAT4_BYPASS;
 918                     textLine2 = "BYPASS";
 919                     textAscii = buildDspAsciiResponse();
 920                     break;
 921                 case DSP_MODE:
 922                     textAscii = buildDspAsciiResponse();
 923                     break;
 924                 case FREQUENCY:
 925                     textAscii = model.getNumberOfZones() > 1 ? buildAsciiResponse(KEY_FREQ, "44.1,48,none,176.4")
 926                             : buildAsciiResponse(KEY_FREQ, "44.1");
 927                     break;
 928                 case DIMMER_LEVEL_SET:
 929                     if (value != null) {
 930                         dimmer = value;
 931                     }
 932                     textAscii = buildAsciiResponse(KEY_DIMMER, dimmer);
 933                     break;
 934                 case DIMMER_LEVEL_GET:
 935                     textAscii = buildAsciiResponse(KEY_DIMMER, dimmer);
 936                     break;
 937                 case MODEL:
 938                     textAscii = buildAsciiResponse(KEY_MODEL, model.getName());
 939                     break;
 940                 case VERSION:
 941                     textAscii = buildAsciiResponse(KEY_VERSION, "1.00");
 942                     break;
 943                 default:
 944                     accepted = false;
 945                     break;
 946             }
 947             if (!accepted) {
 948                 // Check if command is a change of source input for the main zone
 949                 try {
 950                     sources[0] = model.getZoneSourceFromCommand(cmd, 1);
 951                     text = buildSourceLine1Response();
 952                     textLine1Left = buildSourceLine1LeftResponse();
 953                     textAscii = buildSourceAsciiResponse();
 954                     accepted = true;
 955                 } catch (RotelException e) {
 956                 }
 957             }
 958             if (!accepted) {
 959                 // Check if command is a change of source input
 960                 try {
 961                     if (selectingRecord && !model.hasOtherThanPrimaryCommands()) {
 962                         recordSource = model.getSourceFromCommand(cmd);
 963                     } else {
 964                         sources[0] = model.getSourceFromCommand(cmd);
 965                     }
 966                     text = buildSourceLine1Response();
 967                     textLine1Left = buildSourceLine1LeftResponse();
 968                     textAscii = buildSourceAsciiResponse();
 969                     mutes[0] = false;
 970                     accepted = true;
 971                 } catch (RotelException e) {
 972                 }
 973             }
 974             if (!accepted) {
 975                 // Check if command is a change of record source
 976                 try {
 977                     recordSource = model.getRecordSourceFromCommand(cmd);
 978                     text = buildSourceLine1Response();
 979                     textLine2 = buildRecordResponse();
 980                     accepted = true;
 981                 } catch (RotelException e) {
 982                 }
 983             }
 984         }
 985
 986         if (!accepted) {
 987             return;
 988         }
 989
 990         if (cmd != RotelCommand.RECORD_FONCTION_SELECT) {
 991             selectingRecord = false;
 992         }
 993         if (resetZone) {
 994             showZone = 0;
 995         }
 996
 997         if (model.getRespNbChars() == 42) {
 998             while (textLine1Left.length() < 14) {
 999                 textLine1Left += " ";
1000             }
1001             while (textLine1Right.length() < 7) {
1002                 textLine1Right += " ";
1003             }
1004             while (textLine2.length() < 21) {
1005                 textLine2 += " ";
1006             }
1007             text = textLine1Left + textLine1Right + textLine2;
1008         }
1009
1010         if (protocol == RotelProtocol.HEX) {
1011             byte[] chars = Arrays.copyOf(text.getBytes(StandardCharsets.US_ASCII), model.getRespNbChars());
1012             byte[] flags = new byte[model.getRespNbFlags()];
1013             try {
1014                 model.setMultiInput(flags, multiinput);
1015             } catch (RotelException e) {
1016             }
1017             try {
1018                 model.setZone2(flags, powers[2]);
1019             } catch (RotelException e) {
1020             }
1021             try {
1022                 model.setZone3(flags, powers[3]);
1023             } catch (RotelException e) {
1024             }
1025             try {
1026                 model.setZone4(flags, powers[4]);
1027             } catch (RotelException e) {
1028             }
1029             int size = 6 + model.getRespNbChars() + model.getRespNbFlags();
1030             byte[] dataBuffer = new byte[size];
1031             int idx = 0;
1032             dataBuffer[idx++] = START;
1033             dataBuffer[idx++] = (byte) (size - 4);
1034             dataBuffer[idx++] = model.getDeviceId();
1035             dataBuffer[idx++] = STANDARD_RESPONSE;
1036             if (model.isCharsBeforeFlags()) {
1037                 System.arraycopy(chars, 0, dataBuffer, idx, model.getRespNbChars());
1038                 idx += model.getRespNbChars();
1039                 System.arraycopy(flags, 0, dataBuffer, idx, model.getRespNbFlags());
1040                 idx += model.getRespNbFlags();
1041             } else {
1042                 System.arraycopy(flags, 0, dataBuffer, idx, model.getRespNbFlags());
1043                 idx += model.getRespNbFlags();
1044                 System.arraycopy(chars, 0, dataBuffer, idx, model.getRespNbChars());
1045                 idx += model.getRespNbChars();
1046             }
1047             byte checksum = RotelHexProtocolHandler.computeCheckSum(dataBuffer, idx - 1);
1048             if ((checksum & 0x000000FF) == 0x000000FD) {
1049                 dataBuffer[idx++] = (byte) 0xFD;
1050                 dataBuffer[idx++] = 0;
1051             } else if ((checksum & 0x000000FF) == 0x000000FE) {
1052                 dataBuffer[idx++] = (byte) 0xFD;
1053                 dataBuffer[idx++] = 1;
1054             } else {
1055                 dataBuffer[idx++] = checksum;
1056             }
1057             synchronized (lock) {
1058                 feedbackMsg = Arrays.copyOf(dataBuffer, idx);
1059                 idxInFeedbackMsg = 0;
1060             }
1061         } else {
1062             String command = textAscii + (protocol == RotelProtocol.ASCII_V1 ? "!" : "$");
1063             synchronized (lock) {
1064                 feedbackMsg = command.getBytes(StandardCharsets.US_ASCII);
1065                 idxInFeedbackMsg = 0;
1066             }
1067         }
1068     }
1069
1070     private String buildAsciiResponse(String key, String value) {
1071         return String.format("%s=%s", key, value);
1072     }
1073
1074     private String buildAsciiResponse(String key, int value) {
1075         return String.format("%s=%d", key, value);
1076     }
1077
1078     private String buildAsciiResponse(String key, boolean value) {
1079         return buildAsciiResponse(key, buildOnOffValue(value));
1080     }
1081
1082     private String buildOnOffValue(boolean on) {
1083         return on ? MSG_VALUE_ON : MSG_VALUE_OFF;
1084     }
1085
1086     private String buildPowerAsciiResponse() {
1087         return buildAsciiResponse(KEY_POWER, powers[0] ? POWER_ON : STANDBY);
1088     }
1089
1090     private String buildVolumeAsciiResponse() {
1091         if (model.getNumberOfZones() > 1) {
1092             StringJoiner sj = new StringJoiner(",");
1093             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
1094                 sj.add(String.format("%02d", volumes[zone]));
1095             }
1096             return buildAsciiResponse(KEY_VOLUME, sj.toString());
1097         } else {
1098             return buildAsciiResponse(KEY_VOLUME, String.format("%02d", volumes[0]));
1099         }
1100     }
1101
1102     private String buildMuteAsciiResponse() {
1103         if (model.getNumberOfZones() > 1) {
1104             StringJoiner sj = new StringJoiner(",");
1105             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
1106                 sj.add(buildOnOffValue(mutes[zone]));
1107             }
1108             return buildAsciiResponse(KEY_MUTE, sj.toString());
1109         } else {
1110             return buildAsciiResponse(KEY_MUTE, mutes[0]);
1111         }
1112     }
1113
1114     private String buildBassAsciiResponse() {
1115         if (model.getNumberOfZones() > 1) {
1116             StringJoiner sj = new StringJoiner(",");
1117             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
1118                 sj.add(buildBassTrebleValue(basses[zone]));
1119             }
1120             return buildAsciiResponse(KEY_BASS, sj.toString());
1121         } else {
1122             return buildAsciiResponse(KEY_BASS, buildBassTrebleValue(basses[0]));
1123         }
1124     }
1125
1126     private String buildTrebleAsciiResponse() {
1127         if (model.getNumberOfZones() > 1) {
1128             StringJoiner sj = new StringJoiner(",");
1129             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
1130                 sj.add(buildBassTrebleValue(trebles[zone]));
1131             }
1132             return buildAsciiResponse(KEY_TREBLE, sj.toString());
1133         } else {
1134             return buildAsciiResponse(KEY_TREBLE, buildBassTrebleValue(trebles[0]));
1135         }
1136     }
1137
1138     private String buildBassTrebleValue(int value) {
1139         if (tcbypass || value == 0) {
1140             return "000";
1141         } else if (value > 0) {
1142             return String.format("+%02d", value);
1143         } else {
1144             return String.format("-%02d", -value);
1145         }
1146     }
1147
1148     private String buildBalanceAsciiResponse() {
1149         if (model.getNumberOfZones() > 1) {
1150             StringJoiner sj = new StringJoiner(",");
1151             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
1152                 sj.add(buildBalanceValue(balances[zone]));
1153             }
1154             return buildAsciiResponse(KEY_BALANCE, sj.toString());
1155         } else {
1156             return buildAsciiResponse(KEY_BALANCE, buildBalanceValue(balances[0]));
1157         }
1158     }
1159
1160     private String buildBalanceValue(int value) {
1161         if (value == 0) {
1162             return "000";
1163         } else if (value > 0) {
1164             return String.format("r%02d", value);
1165         } else {
1166             return String.format("l%02d", -value);
1167         }
1168     }
1169
1170     private String buildSpeakerAsciiResponse() {
1171         String value;
1172         if (speakerA && speakerB) {
1173             value = MSG_VALUE_SPEAKER_AB;
1174         } else if (speakerA && !speakerB) {
1175             value = MSG_VALUE_SPEAKER_A;
1176         } else if (!speakerA && speakerB) {
1177             value = MSG_VALUE_SPEAKER_B;
1178         } else {
1179             value = MSG_VALUE_OFF;
1180         }
1181         return buildAsciiResponse(KEY_SPEAKER, value);
1182     }
1183
1184     private String buildPlayStatusAsciiResponse() {
1185         String status = "";
1186         switch (playStatus) {
1187             case PLAYING:
1188                 status = PLAY;
1189                 break;
1190             case PAUSED:
1191                 status = PAUSE;
1192                 break;
1193             case STOPPED:
1194                 status = STOP;
1195                 break;
1196         }
1197         return buildAsciiResponse(protocol == RotelProtocol.ASCII_V1 ? KEY1_PLAY_STATUS : KEY2_PLAY_STATUS, status);
1198     }
1199
1200     private String buildTrackAsciiResponse() {
1201         return buildAsciiResponse(KEY_TRACK, String.format("%03d", track));
1202     }
1203
1204     private String buildRandomModeAsciiResponse() {
1205         return buildAsciiResponse(KEY_RANDOM, randomMode);
1206     }
1207
1208     private String buildRepeatModeAsciiResponse() {
1209         String mode = "";
1210         switch (repeatMode) {
1211             case TRACK:
1212                 mode = TRACK;
1213                 break;
1214             case DISC:
1215                 mode = DISC;
1216                 break;
1217             case OFF:
1218                 mode = MSG_VALUE_OFF;
1219                 break;
1220         }
1221         return buildAsciiResponse(KEY_REPEAT, mode);
1222     }
1223
1224     private String buildSourceAsciiResponse() {
1225         if (model.getNumberOfZones() > 1) {
1226             StringJoiner sj = new StringJoiner(",");
1227             for (int zone = 1; zone <= model.getNumberOfZones(); zone++) {
1228                 sj.add(buildZoneSourceValue(sources[zone]));
1229             }
1230             return buildAsciiResponse(KEY_INPUT, sj.toString());
1231         } else {
1232             return buildAsciiResponse(KEY_SOURCE, buildSourceValue(sources[0]));
1233         }
1234     }
1235
1236     private String buildSourceValue(RotelSource source) {
1237         String str = null;
1238         RotelCommand command = source.getCommand();
1239         if (command != null) {
1240             str = protocol == RotelProtocol.ASCII_V1 ? command.getAsciiCommandV1() : command.getAsciiCommandV2();
1241         }
1242         return str == null ? "" : str;
1243     }
1244
1245     private String buildZoneSourceValue(RotelSource source) {
1246         String str = buildSourceValue(source);
1247         int idx = str.indexOf("input_");
1248         return idx < 0 ? str : str.substring(idx + 6);
1249     }
1250
1251     private String buildDspAsciiResponse() {
1252         return buildAsciiResponse(KEY_DSP_MODE, dsp.getFeedback());
1253     }
1254
1255     private String buildSourceLine1Response() {
1256         String text;
1257         if (!powers[0]) {
1258             text = "";
1259         } else if (mutes[0]) {
1260             text = "MUTE ON";
1261         } else {
1262             text = getSourceLabel(sources[0], false) + " " + getSourceLabel(recordSource, true);
1263         }
1264         return text;
1265     }
1266
1267     private String buildSourceLine1LeftResponse() {
1268         String text;
1269         if (!powers[0]) {
1270             text = "";
1271         } else {
1272             text = getSourceLabel(sources[0], false);
1273         }
1274         return text;
1275     }
1276
1277     private String buildRecordResponse() {
1278         String text;
1279         if (!powers[0]) {
1280             text = "";
1281         } else {
1282             text = "REC " + getSourceLabel(recordSource, true);
1283         }
1284         return text;
1285     }
1286
1287     private String buildZonePowerResponse(int numZone) {
1288         String zone;
1289         if (numZone == 2) {
1290             zone = model.getNumberOfZones() > 2 ? "ZONE2" : "ZONE";
1291         } else {
1292             zone = String.format("ZONE%d", numZone);
1293         }
1294         String state = powers[numZone] ? getSourceLabel(sources[numZone], true) : "OFF";
1295         return zone + " " + state;
1296     }
1297
1298     private String buildVolumeLine1Response() {
1299         String text;
1300         if (volumes[0] == minVolume) {
1301             text = " VOLUME  MIN ";
1302         } else if (volumes[0] == maxVolume) {
1303             text = " VOLUME  MAX ";
1304         } else {
1305             text = String.format(" VOLUME   %02d ", volumes[0]);
1306         }
1307         return text;
1308     }
1309
1310     private String buildVolumeLine1RightResponse() {
1311         String text;
1312         if (!powers[0]) {
1313             text = "";
1314         } else if (mutes[0]) {
1315             text = "MUTE ON";
1316         } else if (volumes[0] == minVolume) {
1317             text = "VOL MIN";
1318         } else if (volumes[0] == maxVolume) {
1319             text = "VOL MAX";
1320         } else {
1321             text = String.format("VOL  %02d", volumes[0]);
1322         }
1323         return text;
1324     }
1325
1326     private String buildZoneVolumeResponse(int numZone) {
1327         String zone;
1328         if (numZone == 2) {
1329             zone = model.getNumberOfZones() > 2 ? "ZONE2" : "ZONE";
1330         } else {
1331             zone = String.format("ZONE%d", numZone);
1332         }
1333         String text;
1334         if (mutes[numZone]) {
1335             text = zone + " MUTE ON";
1336         } else if (volumes[numZone] == minVolume) {
1337             text = zone + " VOL MIN";
1338         } else if (volumes[numZone] == maxVolume) {
1339             text = zone + " VOL MAX";
1340         } else {
1341             text = String.format("%s VOL %02d", zone, volumes[numZone]);
1342         }
1343         return text;
1344     }
1345
1346     private String buildBassLine1Response() {
1347         String text;
1348         if (basses[0] == minToneLevel) {
1349             text = "   BASS  MIN ";
1350         } else if (basses[0] == maxToneLevel) {
1351             text = "   BASS  MAX ";
1352         } else if (basses[0] == 0) {
1353             text = "   BASS    0 ";
1354         } else if (basses[0] > 0) {
1355             text = String.format("   BASS  +%02d ", basses[0]);
1356         } else {
1357             text = String.format("   BASS  -%02d ", -basses[0]);
1358         }
1359         return text;
1360     }
1361
1362     private String buildBassLine1RightResponse() {
1363         String text;
1364         if (basses[0] == minToneLevel) {
1365             text = "LF  MIN";
1366         } else if (basses[0] == maxToneLevel) {
1367             text = "LF  MAX";
1368         } else if (basses[0] == 0) {
1369             text = "LF    0";
1370         } else if (basses[0] > 0) {
1371             text = String.format("LF + %02d", basses[0]);
1372         } else {
1373             text = String.format("LF - %02d", -basses[0]);
1374         }
1375         return text;
1376     }
1377
1378     private String buildTrebleLine1Response() {
1379         String text;
1380         if (trebles[0] == minToneLevel) {
1381             text = " TREBLE  MIN ";
1382         } else if (trebles[0] == maxToneLevel) {
1383             text = " TREBLE  MAX ";
1384         } else if (trebles[0] == 0) {
1385             text = " TREBLE    0 ";
1386         } else if (trebles[0] > 0) {
1387             text = String.format(" TREBLE  +%02d ", trebles[0]);
1388         } else {
1389             text = String.format(" TREBLE  -%02d ", -trebles[0]);
1390         }
1391         return text;
1392     }
1393
1394     private String buildTrebleLine1RightResponse() {
1395         String text;
1396         if (trebles[0] == minToneLevel) {
1397             text = "HF  MIN";
1398         } else if (trebles[0] == maxToneLevel) {
1399             text = "HF  MAX";
1400         } else if (trebles[0] == 0) {
1401             text = "HF    0";
1402         } else if (trebles[0] > 0) {
1403             text = String.format("HF + %02d", trebles[0]);
1404         } else {
1405             text = String.format("HF - %02d", -trebles[0]);
1406         }
1407         return text;
1408     }
1409
1410     private String getSourceLabel(RotelSource source, boolean considerFollowMain) {
1411         String label;
1412         if (considerFollowMain && source.getName().equals(RotelSource.CAT1_FOLLOW_MAIN.getName())) {
1413             label = "SOURCE";
1414         } else {
1415             label = Objects.requireNonNullElse(sourcesLabels.get(source), source.getLabel());
1416         }
1417
1418         return label;
1419     }
1420 }