Refactor zone names (#6686)

* Add ZoneNames constants for protocol zone identifiers. Introduce a centralized ZoneNames namespace providing constexpr constants for zone identifiers used in the client-server protocol. This establishes a single source of truth for zone names like TABLE, GRAVE, EXILE, HAND, DECK, SIDEBOARD, and STACK. The protocol values remain unchanged (e.g., EXILE maps to rfg for backwards compatibility) while providing meaningful constant names.

* refactor(server): use ZoneNames constants in server game logic

 Replace hardcoded zone name strings with ZoneNames:: constants in:
 - server_player.cpp: zone setup, draw, shuffle, mulligan operations
 - server_abstract_player.cpp: card movement and token destruction
 - server_game.cpp: returning cards when players leave

 No functional changes - purely mechanical string literal replacement.

* refactor(client): use ZoneNames constants in core player/zone logic

 Update the foundational player and zone classes to use ZoneNames::
 constants instead of string literals. Changes include:
 - player.h/cpp: zone initialization and builtinZones set
 - card_zone_logic.cpp: zone name translation for UI display
 - table_zone.cpp: table zone operations

 No functional changes - purely mechanical string literal replacement.

* refactor(client): use ZoneNames constants in player actions and events

 Replace zone name strings with ZoneNames:: constants in the player
 action and event handling code. player_actions.cpp contains the most
 extensive changes (~90+ replacements) covering all card movement
 commands.

 No functional changes - purely mechanical string literal replacement.

* refactor(client): use ZoneNames constants in zone menu handlers

 Update all zone-specific menu files to use ZoneNames:: constants
 for QAction data values and zone targeting. This covers context menus
 for cards, graveyard, hand, and exile (RFG) zones.

 No functional changes - purely mechanical string literal replacement.

* refactor(client): use ZoneNames constants in game scene components

 Update remaining game scene components to use ZoneNames:: constants:
 - arrow_item.cpp: arrow drawing between cards
 - game_scene.cpp: zone view positioning
 - message_log_widget.cpp: removes duplicate local static constants
   that were previously defining zone names redundantly
 - phases_toolbar.cpp: phase actions (untap all)

 Notable: message_log_widget.cpp previously had its own local constants
 (TABLE_ZONE_NAME, GRAVE_ZONE_NAME, etc.) which are now removed in favor
 of the centralized ZoneNames:: constants.

* formatting fix

cockatrice/src/game/player/player_actions.cpp

@@ -28,6 +28,7 @@
 #include <libcockatrice/protocol/pb/command_undo_draw.pb.h>
 #include <libcockatrice/protocol/pb/context_move_card.pb.h>
 #include <libcockatrice/utility/trice_limits.h>
+#include <libcockatrice/utility/zone_names.h>
 
 // milliseconds in between triggers of the move top cards until action
 static constexpr int MOVE_TOP_CARD_UNTIL_INTERVAL = 100;
@@ -63,13 +64,13 @@ void PlayerActions::playCard(CardItem *card, bool faceDown)
     int tableRow = info.getUiAttributes().tableRow;
     bool playToStack = SettingsCache::instance().getPlayToStack();
     QString currentZone = card->getZone()->getName();
-    if (currentZone == "stack" && tableRow == 3) {
-        cmd.set_target_zone("grave");
+    if (currentZone == ZoneNames::STACK && tableRow == 3) {
+        cmd.set_target_zone(ZoneNames::GRAVE);
         cmd.set_x(0);
         cmd.set_y(0);
-    } else if (!faceDown &&
-               ((!playToStack && tableRow == 3) || ((playToStack && tableRow != 0) && currentZone != "stack"))) {
-        cmd.set_target_zone("stack");
+    } else if (!faceDown && ((!playToStack && tableRow == 3) ||
+                             ((playToStack && tableRow != 0) && currentZone != ZoneNames::STACK))) {
+        cmd.set_target_zone(ZoneNames::STACK);
         cmd.set_x(-1);
         cmd.set_y(0);
     } else {
@@ -81,7 +82,7 @@ void PlayerActions::playCard(CardItem *card, bool faceDown)
         }
         cardToMove->set_tapped(!faceDown && info.getUiAttributes().cipt);
         if (tableRow != 3)
-            cmd.set_target_zone("table");
+            cmd.set_target_zone(ZoneNames::TABLE);
         cmd.set_x(gridPoint.x());
         cmd.set_y(gridPoint.y());
     }
@@ -124,7 +125,7 @@ void PlayerActions::playCardToTable(const CardItem *card, bool faceDown)
         cardToMove->set_pt(info.getPowTough().toStdString());
     }
     cardToMove->set_tapped(!faceDown && info.getUiAttributes().cipt);
-    cmd.set_target_zone("table");
+    cmd.set_target_zone(ZoneNames::TABLE);
     cmd.set_x(gridPoint.x());
     cmd.set_y(gridPoint.y());
     sendGameCommand(cmd);
@@ -132,12 +133,12 @@ void PlayerActions::playCardToTable(const CardItem *card, bool faceDown)
 
 void PlayerActions::actViewLibrary()
 {
-    player->getGameScene()->toggleZoneView(player, "deck", -1);
+    player->getGameScene()->toggleZoneView(player, ZoneNames::DECK, -1);
 }
 
 void PlayerActions::actViewHand()
 {
-    player->getGameScene()->toggleZoneView(player, "hand", -1);
+    player->getGameScene()->toggleZoneView(player, ZoneNames::HAND, -1);
 }
 
 /**
@@ -181,7 +182,7 @@ void PlayerActions::actViewTopCards()
                                       deckSize, 1, &ok);
     if (ok) {
         defaultNumberTopCards = number;
-        player->getGameScene()->toggleZoneView(player, "deck", number);
+        player->getGameScene()->toggleZoneView(player, ZoneNames::DECK, number);
     }
 }
 
@@ -194,14 +195,14 @@ void PlayerActions::actViewBottomCards()
                                       deckSize, 1, &ok);
     if (ok) {
         defaultNumberBottomCards = number;
-        player->getGameScene()->toggleZoneView(player, "deck", number, true);
+        player->getGameScene()->toggleZoneView(player, ZoneNames::DECK, number, true);
     }
 }
 
 void PlayerActions::actAlwaysRevealTopCard()
 {
     Command_ChangeZoneProperties cmd;
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
     cmd.set_always_reveal_top_card(player->getPlayerMenu()->getLibraryMenu()->isAlwaysRevealTopCardChecked());
 
     sendGameCommand(cmd);
@@ -210,7 +211,7 @@ void PlayerActions::actAlwaysRevealTopCard()
 void PlayerActions::actAlwaysLookAtTopCard()
 {
     Command_ChangeZoneProperties cmd;
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
     cmd.set_always_look_at_top_card(player->getPlayerMenu()->getLibraryMenu()->isAlwaysLookAtTopCardChecked());
 
     sendGameCommand(cmd);
@@ -223,17 +224,17 @@ void PlayerActions::actOpenDeckInDeckEditor()
 
 void PlayerActions::actViewGraveyard()
 {
-    player->getGameScene()->toggleZoneView(player, "grave", -1);
+    player->getGameScene()->toggleZoneView(player, ZoneNames::GRAVE, -1);
 }
 
 void PlayerActions::actViewRfg()
 {
-    player->getGameScene()->toggleZoneView(player, "rfg", -1);
+    player->getGameScene()->toggleZoneView(player, ZoneNames::EXILE, -1);
 }
 
 void PlayerActions::actViewSideboard()
 {
-    player->getGameScene()->toggleZoneView(player, "sb", -1);
+    player->getGameScene()->toggleZoneView(player, ZoneNames::SIDEBOARD, -1);
 }
 
 void PlayerActions::actShuffle()
@@ -263,7 +264,7 @@ void PlayerActions::actShuffleTop()
     defaultNumberTopCards = number;
 
     Command_Shuffle cmd;
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
     cmd.set_start(0);
     cmd.set_end(number - 1); // inclusive, the indexed card at end will be shuffled
 
@@ -292,7 +293,7 @@ void PlayerActions::actShuffleBottom()
     defaultNumberBottomCards = number;
 
     Command_Shuffle cmd;
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
     cmd.set_start(-number);
     cmd.set_end(-1);
 
@@ -376,7 +377,7 @@ void PlayerActions::actUndoDraw()
 
 void PlayerActions::cmdSetTopCard(Command_MoveCard &cmd)
 {
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     auto *cardToMove = cmd.mutable_cards_to_move()->add_card();
     cardToMove->set_card_id(0);
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
@@ -386,7 +387,7 @@ void PlayerActions::cmdSetBottomCard(Command_MoveCard &cmd)
 {
     CardZoneLogic *zone = player->getDeckZone();
     int lastCard = zone->getCards().size() - 1;
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     auto *cardToMove = cmd.mutable_cards_to_move()->add_card();
     cardToMove->set_card_id(lastCard);
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
@@ -400,7 +401,7 @@ void PlayerActions::actMoveTopCardToGrave()
 
     Command_MoveCard cmd;
     cmdSetTopCard(cmd);
-    cmd.set_target_zone("grave");
+    cmd.set_target_zone(ZoneNames::GRAVE);
     cmd.set_x(0);
     cmd.set_y(0);
 
@@ -415,7 +416,7 @@ void PlayerActions::actMoveTopCardToExile()
 
     Command_MoveCard cmd;
     cmdSetTopCard(cmd);
-    cmd.set_target_zone("rfg");
+    cmd.set_target_zone(ZoneNames::EXILE);
     cmd.set_x(0);
     cmd.set_y(0);
 
@@ -424,22 +425,22 @@ void PlayerActions::actMoveTopCardToExile()
 
 void PlayerActions::actMoveTopCardsToGrave()
 {
-    moveTopCardsTo("grave", tr("grave"), false);
+    moveTopCardsTo(ZoneNames::GRAVE, tr("grave"), false);
 }
 
 void PlayerActions::actMoveTopCardsToGraveFaceDown()
 {
-    moveTopCardsTo("grave", tr("grave"), true);
+    moveTopCardsTo(ZoneNames::GRAVE, tr("grave"), true);
 }
 
 void PlayerActions::actMoveTopCardsToExile()
 {
-    moveTopCardsTo("rfg", tr("exile"), false);
+    moveTopCardsTo(ZoneNames::EXILE, tr("exile"), false);
 }
 
 void PlayerActions::actMoveTopCardsToExileFaceDown()
 {
-    moveTopCardsTo("rfg", tr("exile"), true);
+    moveTopCardsTo(ZoneNames::EXILE, tr("exile"), true);
 }
 
 void PlayerActions::moveTopCardsTo(const QString &targetZone, const QString &zoneDisplayName, bool faceDown)
@@ -463,7 +464,7 @@ void PlayerActions::moveTopCardsTo(const QString &targetZone, const QString &zon
     defaultNumberTopCards = number;
 
     Command_MoveCard cmd;
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
     cmd.set_target_zone(targetZone.toStdString());
     cmd.set_x(0);
@@ -549,7 +550,7 @@ void PlayerActions::actMoveTopCardToBottom()
 
     Command_MoveCard cmd;
     cmdSetTopCard(cmd);
-    cmd.set_target_zone("deck");
+    cmd.set_target_zone(ZoneNames::DECK);
     cmd.set_x(-1); // bottom of deck
     cmd.set_y(0);
 
@@ -564,7 +565,7 @@ void PlayerActions::actMoveTopCardToPlay()
 
     Command_MoveCard cmd;
     cmdSetTopCard(cmd);
-    cmd.set_target_zone("stack");
+    cmd.set_target_zone(ZoneNames::STACK);
     cmd.set_x(-1);
     cmd.set_y(0);
 
@@ -578,12 +579,12 @@ void PlayerActions::actMoveTopCardToPlayFaceDown()
     }
 
     Command_MoveCard cmd;
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     CardToMove *cardToMove = cmd.mutable_cards_to_move()->add_card();
     cardToMove->set_card_id(0);
     cardToMove->set_face_down(true);
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
-    cmd.set_target_zone("table");
+    cmd.set_target_zone(ZoneNames::TABLE);
     cmd.set_x(-1);
     cmd.set_y(0);
 
@@ -598,7 +599,7 @@ void PlayerActions::actMoveBottomCardToGrave()
 
     Command_MoveCard cmd;
     cmdSetBottomCard(cmd);
-    cmd.set_target_zone("grave");
+    cmd.set_target_zone(ZoneNames::GRAVE);
     cmd.set_x(0);
     cmd.set_y(0);
 
@@ -613,7 +614,7 @@ void PlayerActions::actMoveBottomCardToExile()
 
     Command_MoveCard cmd;
     cmdSetBottomCard(cmd);
-    cmd.set_target_zone("rfg");
+    cmd.set_target_zone(ZoneNames::EXILE);
     cmd.set_x(0);
     cmd.set_y(0);
 
@@ -622,22 +623,22 @@ void PlayerActions::actMoveBottomCardToExile()
 
 void PlayerActions::actMoveBottomCardsToGrave()
 {
-    moveBottomCardsTo("grave", tr("grave"), false);
+    moveBottomCardsTo(ZoneNames::GRAVE, tr("grave"), false);
 }
 
 void PlayerActions::actMoveBottomCardsToGraveFaceDown()
 {
-    moveBottomCardsTo("grave", tr("grave"), true);
+    moveBottomCardsTo(ZoneNames::GRAVE, tr("grave"), true);
 }
 
 void PlayerActions::actMoveBottomCardsToExile()
 {
-    moveBottomCardsTo("rfg", tr("exile"), false);
+    moveBottomCardsTo(ZoneNames::EXILE, tr("exile"), false);
 }
 
 void PlayerActions::actMoveBottomCardsToExileFaceDown()
 {
-    moveBottomCardsTo("rfg", tr("exile"), true);
+    moveBottomCardsTo(ZoneNames::EXILE, tr("exile"), true);
 }
 
 void PlayerActions::moveBottomCardsTo(const QString &targetZone, const QString &zoneDisplayName, bool faceDown)
@@ -661,7 +662,7 @@ void PlayerActions::moveBottomCardsTo(const QString &targetZone, const QString &
     defaultNumberBottomCards = number;
 
     Command_MoveCard cmd;
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
     cmd.set_target_zone(targetZone.toStdString());
     cmd.set_x(0);
@@ -686,7 +687,7 @@ void PlayerActions::actMoveBottomCardToTop()
 
     Command_MoveCard cmd;
     cmdSetBottomCard(cmd);
-    cmd.set_target_zone("deck");
+    cmd.set_target_zone(ZoneNames::DECK);
     cmd.set_x(0); // top of deck
     cmd.set_y(0);
 
@@ -756,7 +757,7 @@ void PlayerActions::actDrawBottomCard()
 
     Command_MoveCard cmd;
     cmdSetBottomCard(cmd);
-    cmd.set_target_zone("hand");
+    cmd.set_target_zone(ZoneNames::HAND);
     cmd.set_x(0);
     cmd.set_y(0);
 
@@ -782,9 +783,9 @@ void PlayerActions::actDrawBottomCards()
     defaultNumberBottomCards = number;
 
     Command_MoveCard cmd;
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
-    cmd.set_target_zone("hand");
+    cmd.set_target_zone(ZoneNames::HAND);
     cmd.set_x(0);
     cmd.set_y(0);
 
@@ -803,7 +804,7 @@ void PlayerActions::actMoveBottomCardToPlay()
 
     Command_MoveCard cmd;
     cmdSetBottomCard(cmd);
-    cmd.set_target_zone("stack");
+    cmd.set_target_zone(ZoneNames::STACK);
     cmd.set_x(-1);
     cmd.set_y(0);
 
@@ -820,13 +821,13 @@ void PlayerActions::actMoveBottomCardToPlayFaceDown()
     int lastCard = zone->getCards().size() - 1;
 
     Command_MoveCard cmd;
-    cmd.set_start_zone("deck");
+    cmd.set_start_zone(ZoneNames::DECK);
     auto *cardToMove = cmd.mutable_cards_to_move()->add_card();
     cardToMove->set_card_id(lastCard);
     cardToMove->set_face_down(true);
 
     cmd.set_target_player_id(player->getPlayerInfo()->getId());
-    cmd.set_target_zone("table");
+    cmd.set_target_zone(ZoneNames::TABLE);
     cmd.set_x(-1);
     cmd.set_y(0);
 
@@ -836,7 +837,7 @@ void PlayerActions::actMoveBottomCardToPlayFaceDown()
 void PlayerActions::actUntapAll()
 {
     Command_SetCardAttr cmd;
-    cmd.set_zone("table");
+    cmd.set_zone(ZoneNames::TABLE);
     cmd.set_attribute(AttrTapped);
     cmd.set_attr_value("0");
 
@@ -886,7 +887,7 @@ void PlayerActions::actCreateAnotherToken()
     }
 
     Command_CreateToken cmd;
-    cmd.set_zone("table");
+    cmd.set_zone(ZoneNames::TABLE);
     cmd.set_card_name(lastTokenInfo.name.toStdString());
     cmd.set_card_provider_id(lastTokenInfo.providerId.toStdString());
     cmd.set_color(lastTokenInfo.color.toStdString());
@@ -1067,7 +1068,7 @@ bool PlayerActions::createRelatedFromRelation(const CardItem *sourceCard, const
 
         // move card onto table first if attaching from some other zone
         // we only do this for AttachTo because cross-zone TransformInto is already handled server-side
-        if (attachType == CardRelationType::AttachTo && sourceCard->getZone()->getName() != "table") {
+        if (attachType == CardRelationType::AttachTo && sourceCard->getZone()->getName() != ZoneNames::TABLE) {
             playCardToTable(sourceCard, false);
         }
 
@@ -1093,7 +1094,7 @@ void PlayerActions::createCard(const CardItem *sourceCard,
 
     // create the token for the related card
     Command_CreateToken cmd;
-    cmd.set_zone("table");
+    cmd.set_zone(ZoneNames::TABLE);
     cmd.set_card_name(cardInfo->getName().toStdString());
     switch (cardInfo->getColors().size()) {
         case 0:
@@ -1122,12 +1123,12 @@ void PlayerActions::createCard(const CardItem *sourceCard,
 
     switch (attachType) {
         case CardRelationType::DoesNotAttach:
-            cmd.set_target_zone("table");
+            cmd.set_target_zone(ZoneNames::TABLE);
             cmd.set_card_provider_id(relatedCard.getPrinting().getUuid().toStdString());
             break;
 
         case CardRelationType::AttachTo:
-            cmd.set_target_zone("table"); // We currently only support creating tokens on the table
+            cmd.set_target_zone(ZoneNames::TABLE); // We currently only support creating tokens on the table
             cmd.set_card_provider_id(relatedCard.getPrinting().getUuid().toStdString());
             cmd.set_target_card_id(sourceCard->getId());
             cmd.set_target_mode(Command_CreateToken::ATTACH_TO);
@@ -1135,7 +1136,7 @@ void PlayerActions::createCard(const CardItem *sourceCard,
 
         case CardRelationType::TransformInto:
             // allow cards to directly transform on stack
-            cmd.set_zone(sourceCard->getZone()->getName() == "stack" ? "stack" : "table");
+            cmd.set_zone(sourceCard->getZone()->getName() == ZoneNames::STACK ? ZoneNames::STACK : ZoneNames::TABLE);
             // Transform card zone changes are handled server-side
             cmd.set_target_zone(sourceCard->getZone()->getName().toStdString());
             cmd.set_target_card_id(sourceCard->getId());
@@ -1250,7 +1251,7 @@ void PlayerActions::actMoveCardXCardsFromTop()
     cmd->set_start_zone(startZone.toStdString());
     cmd->mutable_cards_to_move()->CopyFrom(idList);
     cmd->set_target_player_id(player->getPlayerInfo()->getId());
-    cmd->set_target_zone("deck");
+    cmd->set_target_zone(ZoneNames::DECK);
     cmd->set_x(number);
     cmd->set_y(0);
     commandList.append(cmd);
@@ -1639,7 +1640,7 @@ void PlayerActions::playSelectedCards(const bool faceDown)
               [](const auto &card1, const auto &card2) { return card1->getId() > card2->getId(); });
 
     for (auto &card : selectedCards) {
-        if (card && !isUnwritableRevealZone(card->getZone()) && card->getZone()->getName() != "table") {
+        if (card && !isUnwritableRevealZone(card->getZone()) && card->getZone()->getName() != ZoneNames::TABLE) {
             playCard(card, faceDown);
         }
     }
@@ -1692,7 +1693,7 @@ void PlayerActions::actRevealHand(int revealToPlayerId)
     if (revealToPlayerId != -1) {
         cmd.set_player_id(revealToPlayerId);
     }
-    cmd.set_zone_name("hand");
+    cmd.set_zone_name(ZoneNames::HAND);
 
     sendGameCommand(cmd);
 }
@@ -1703,7 +1704,7 @@ void PlayerActions::actRevealRandomHandCard(int revealToPlayerId)
     if (revealToPlayerId != -1) {
         cmd.set_player_id(revealToPlayerId);
     }
-    cmd.set_zone_name("hand");
+    cmd.set_zone_name(ZoneNames::HAND);
     cmd.add_card_id(RANDOM_CARD_FROM_ZONE);
 
     sendGameCommand(cmd);
@@ -1715,7 +1716,7 @@ void PlayerActions::actRevealLibrary(int revealToPlayerId)
     if (revealToPlayerId != -1) {
         cmd.set_player_id(revealToPlayerId);
     }
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
 
     sendGameCommand(cmd);
 }
@@ -1726,7 +1727,7 @@ void PlayerActions::actLendLibrary(int lendToPlayerId)
     if (lendToPlayerId != -1) {
         cmd.set_player_id(lendToPlayerId);
     }
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
     cmd.set_grant_write_access(true);
 
     sendGameCommand(cmd);
@@ -1739,7 +1740,7 @@ void PlayerActions::actRevealTopCards(int revealToPlayerId, int amount)
         cmd.set_player_id(revealToPlayerId);
     }
 
-    cmd.set_zone_name("deck");
+    cmd.set_zone_name(ZoneNames::DECK);
     cmd.set_top_cards(amount);
     // backward compatibility: servers before #1051 only permits to reveal the first card
     cmd.add_card_id(0);
@@ -1753,7 +1754,7 @@ void PlayerActions::actRevealRandomGraveyardCard(int revealToPlayerId)
     if (revealToPlayerId != -1) {
         cmd.set_player_id(revealToPlayerId);
     }
-    cmd.set_zone_name("grave");
+    cmd.set_zone_name(ZoneNames::GRAVE);
     cmd.add_card_id(RANDOM_CARD_FROM_ZONE);
     sendGameCommand(cmd);
 }
@@ -1816,7 +1817,7 @@ void PlayerActions::cardMenuAction()
                 }
                 case cmClone: {
                     auto *cmd = new Command_CreateToken;
-                    cmd->set_zone("table");
+                    cmd->set_zone(ZoneNames::TABLE);
                     cmd->set_card_name(card->getName().toStdString());
                     cmd->set_card_provider_id(card->getProviderId().toStdString());
                     cmd->set_color(card->getColor().toStdString());
@@ -1858,13 +1859,13 @@ void PlayerActions::cardMenuAction()
                 cmd->set_start_zone(startZone.toStdString());
                 cmd->mutable_cards_to_move()->CopyFrom(idList);
                 cmd->set_target_player_id(player->getPlayerInfo()->getId());
-                cmd->set_target_zone("deck");
+                cmd->set_target_zone(ZoneNames::DECK);
                 cmd->set_x(0);
                 cmd->set_y(0);
 
                 if (idList.card_size() > 1) {
                     auto *scmd = new Command_Shuffle;
-                    scmd->set_zone_name("deck");
+                    scmd->set_zone_name(ZoneNames::DECK);
                     scmd->set_start(0);
                     scmd->set_end(idList.card_size() - 1); // inclusive, the indexed card at end will be shuffled
                     // Server process events backwards, so...
@@ -1880,13 +1881,13 @@ void PlayerActions::cardMenuAction()
                 cmd->set_start_zone(startZone.toStdString());
                 cmd->mutable_cards_to_move()->CopyFrom(idList);
                 cmd->set_target_player_id(player->getPlayerInfo()->getId());
-                cmd->set_target_zone("deck");
+                cmd->set_target_zone(ZoneNames::DECK);
                 cmd->set_x(-1);
                 cmd->set_y(0);
 
                 if (idList.card_size() > 1) {
                     auto *scmd = new Command_Shuffle;
-                    scmd->set_zone_name("deck");
+                    scmd->set_zone_name(ZoneNames::DECK);
                     scmd->set_start(-idList.card_size());
                     scmd->set_end(-1);
                     // Server process events backwards, so...
@@ -1902,7 +1903,7 @@ void PlayerActions::cardMenuAction()
                 cmd->set_start_zone(startZone.toStdString());
                 cmd->mutable_cards_to_move()->CopyFrom(idList);
                 cmd->set_target_player_id(player->getPlayerInfo()->getId());
-                cmd->set_target_zone("hand");
+                cmd->set_target_zone(ZoneNames::HAND);
                 cmd->set_x(0);
                 cmd->set_y(0);
                 commandList.append(cmd);
@@ -1914,7 +1915,7 @@ void PlayerActions::cardMenuAction()
                 cmd->set_start_zone(startZone.toStdString());
                 cmd->mutable_cards_to_move()->CopyFrom(idList);
                 cmd->set_target_player_id(player->getPlayerInfo()->getId());
-                cmd->set_target_zone("grave");
+                cmd->set_target_zone(ZoneNames::GRAVE);
                 cmd->set_x(0);
                 cmd->set_y(0);
                 commandList.append(cmd);
@@ -1926,7 +1927,7 @@ void PlayerActions::cardMenuAction()
                 cmd->set_start_zone(startZone.toStdString());
                 cmd->mutable_cards_to_move()->CopyFrom(idList);
                 cmd->set_target_player_id(player->getPlayerInfo()->getId());
-                cmd->set_target_zone("rfg");
+                cmd->set_target_zone(ZoneNames::EXILE);
                 cmd->set_x(0);
                 cmd->set_y(0);
                 commandList.append(cmd);