[Client] Address tournament UI review feedback

- Drop the in-game tournament-settings button: Command_TournamentSettingsSelect
  has no server handler (RespContextError), the host-ness decision was evaluated
  once at tab construction, and the button never received a label on first show.
  The dialog can be re-added together with a working Server_Player override.
- Pass PlayerManager::isSpectator() to TournamentWidget instead of relying on
  localPlayerId == -1, which never holds for spectators.
- Report games per match as the total series length (Best of %1) to match the
  DlgTournamentSettings hint and the server's use of the value; the previous
  gamesPerMatch * 2 - 1 mislabeled Bo3 as Best of 5.
- Block signals around read-only tournamentCheckBox setChecked so the disabled
  settings button is not re-enabled, and seed Command_CreateGame through
  mutable_tournament_settings() (field 15 became the settings message).
- return after closing a sub-game that routed to its parent tab.

cockatrice/src/interface/widgets/dialogs/dlg_create_game.cpp

@@ -15,6 +15,7 @@
 #include <QPushButton>
 #include <QRadioButton>
 #include <QSet>
+#include <QSignalBlocker>
 #include <QSpinBox>
 #include <libcockatrice/protocol/pb/serverinfo_game.pb.h>
 #include <libcockatrice/protocol/pending_command.h>
@@ -233,7 +234,10 @@ DlgCreateGame::DlgCreateGame(const ServerInfo_Game &gameInfo, const QMap<int, QS
     spectatorsCanTalkCheckBox->setChecked(gameInfo.spectators_can_chat());
     spectatorsSeeEverythingCheckBox->setChecked(gameInfo.spectators_omniscient());
     shareDecklistsOnLoadCheckBox->setChecked(gameInfo.share_decklists_on_load());
-    tournamentCheckBox->setChecked(gameInfo.is_tournament());
+    {
+        const QSignalBlocker blocker(tournamentCheckBox);
+        tournamentCheckBox->setChecked(gameInfo.is_tournament());
+    }
 
     QSet<int> types;
     for (int i = 0; i < gameInfo.game_types_size(); ++i) {
@@ -305,7 +309,7 @@ void DlgCreateGame::actOK()
     cmd.set_share_decklists_on_load(shareDecklistsOnLoadCheckBox->isChecked());
     cmd.set_is_tournament(tournamentCheckBox->isChecked());
     if (tournamentCheckBox->isChecked()) {
-        cmd.set_games_per_match(tournamentSettings.gamesPerMatch);
+        cmd.mutable_tournament_settings()->set_games_per_match(tournamentSettings.gamesPerMatch);
     }
 
     auto _gameTypes = QString();

cockatrice/src/interface/widgets/draft/tournament_widget.cpp

@@ -75,6 +75,11 @@ void TournamentWidget::setLocalPlayerId(int playerId)
     localPlayerId = playerId;
 }
 
+void TournamentWidget::setIsSpectator(bool spectator)
+{
+    isSpectator = spectator;
+}
+
 QString TournamentWidget::getPlayerName(const Event_TournamentState &state, int playerId) const
 {
     for (int i = 0; i < state.players_size(); ++i) {
@@ -93,15 +98,15 @@ void TournamentWidget::updateTournamentState(const Event_TournamentState &state)
     QString statusText;
     switch (state.phase()) {
         case Event_TournamentState::PHASE_DECK_BUILDING:
-            statusText = gamesPerMatch > 1 ? tr("Tournament - Deck building (Best of %1)").arg(gamesPerMatch * 2 - 1)
+            statusText = gamesPerMatch > 1 ? tr("Tournament - Deck building (Best of %1)").arg(gamesPerMatch)
                                            : tr("Tournament - Deck building");
             break;
         case Event_TournamentState::PHASE_PLAYING:
-            statusText = gamesPerMatch > 1 ? tr("Tournament - Playing (Best of %1)").arg(gamesPerMatch * 2 - 1)
+            statusText = gamesPerMatch > 1 ? tr("Tournament - Playing (Best of %1)").arg(gamesPerMatch)
                                            : tr("Tournament - Playing");
             break;
         case Event_TournamentState::PHASE_FINISHED:
-            statusText = gamesPerMatch > 1 ? tr("Tournament - Finished (Best of %1)").arg(gamesPerMatch * 2 - 1)
+            statusText = gamesPerMatch > 1 ? tr("Tournament - Finished (Best of %1)").arg(gamesPerMatch)
                                            : tr("Tournament - Finished");
             break;
         default:
@@ -134,7 +139,7 @@ void TournamentWidget::updateOpenMatchButton()
         openMatchButton->setEnabled(true);
         openMatchButton->setText(tr("Open match game"));
         openMatchButton->setToolTip(tr("Switch to your current match game"));
-    } else if (localPlayerId == -1 && hasAnyLivePairing) {
+    } else if (isSpectator && hasAnyLivePairing) {
         // Spectators have no pairing of their own but may watch any running match.
         openMatchButton->setEnabled(true);
         openMatchButton->setText(tr("Spectate live match"));

cockatrice/src/interface/widgets/draft/tournament_widget.h

@@ -27,6 +27,7 @@ public:
 
     void updateTournamentState(const Event_TournamentState &state);
     void setLocalPlayerId(int playerId);
+    void setIsSpectator(bool spectator);
     void retranslateUi();
 
 signals:
@@ -47,6 +48,7 @@ private:
     QPushButton *openMatchButton;
 
     int localPlayerId = -1;
+    bool isSpectator = false;
     int currentGameId = -1;
     bool hasOwnLivePairing = false;
     bool hasAnyLivePairing = false;

cockatrice/src/interface/widgets/tabs/tab_game.cpp

@@ -949,12 +949,9 @@ bool TabGame::switchToGameTab(int gameId)
 void TabGame::closeGame()
 {
     int parentId = game->getGameMetaInfo()->parentGameId();
-    if (parentId >= 0) {
-        if (switchToGameTab(parentId)) {
-            close();
-        }
-        // If the parent tab is gone, fall through to the normal leave-game
-        // flow instead of stranding the user on a dead sub-game tab.
+    if (parentId >= 0 && switchToGameTab(parentId)) {
+        close();
+        return;
     }
 
     gameMenu->clear();

cockatrice/src/interface/widgets/tabs/tournament_tab_game_extension.cpp

@@ -1,8 +1,6 @@
 #include "tournament_tab_game_extension.h"
 
 #include "../../../game/game_event_handler.h"
-#include "../../../game/player/player_logic.h"
-#include "../../widgets/dialogs/dlg_tournament_settings.h"
 #include "../../widgets/draft/tournament_widget.h"
 #include "tab_game.h"
 #include "tab_supervisor.h"
@@ -12,7 +10,6 @@
 #include <QPushButton>
 #include <QStackedWidget>
 #include <QVBoxLayout>
-#include <libcockatrice/protocol/pb/command_tournament.pb.h>
 #include <libcockatrice/protocol/pb/event_tournament_state.pb.h>
 
 TournamentTabGameExtension::TournamentTabGameExtension(TabGame *parent) : QObject(parent), tabGame(parent)
@@ -29,6 +26,7 @@ TournamentTabGameExtension::TournamentTabGameExtension(TabGame *parent) : QObjec
 
     tournamentWidget = new TournamentWidget(tournamentOverviewWidget);
     tournamentWidget->setLocalPlayerId(parent->getGame()->getPlayerManager()->getLocalPlayerId());
+    tournamentWidget->setIsSpectator(parent->getGame()->getPlayerManager()->isSpectator());
     overviewLayout->addWidget(tournamentWidget);
 
     parent->getMainWidget()->addWidget(tournamentOverviewWidget);
@@ -44,12 +42,6 @@ TournamentTabGameExtension::TournamentTabGameExtension(TabGame *parent) : QObjec
     connectSignals();
 }
 
-bool TournamentTabGameExtension::isLocalPlayerHost() const
-{
-    return tabGame->getGame()->getPlayerManager()->getLocalPlayerId() ==
-           tabGame->getGame()->getGameState()->getHostId();
-}
-
 void TournamentTabGameExtension::connectSignals()
 {
     auto *handler = tabGame->getGame()->getGameEventHandler();
@@ -68,11 +60,6 @@ void TournamentTabGameExtension::initializeTournamentMode()
     auto *deckLayout = tabGame->getDeckViewContainerLayout();
     int index = 0;
     deckLayout->insertWidget(index++, deckViewStatusLabel);
-    if (isLocalPlayerHost()) {
-        settingsButton = new QPushButton(tabGame->getDeckViewContainerWidget());
-        connect(settingsButton, &QPushButton::clicked, this, &TournamentTabGameExtension::showTournamentSettingsDialog);
-        deckLayout->insertWidget(index++, settingsButton);
-    }
     deckLayout->insertWidget(index++, standingsButton);
     deckLayout->insertSpacing(index, 4);
 }
@@ -81,9 +68,6 @@ void TournamentTabGameExtension::retranslateUi()
 {
     backToGameButton->setText(tr("Back to game view"));
     standingsButton->setText(tr("Tournament standings"));
-    if (settingsButton) {
-        settingsButton->setText(tr("Tournament Settings"));
-    }
     tournamentWidget->retranslateUi();
 }
 
@@ -126,9 +110,6 @@ void TournamentTabGameExtension::updateNavigationButtons(const Event_TournamentS
     bool showStandings =
         state.phase() == Event_TournamentState::PHASE_PLAYING || state.phase() == Event_TournamentState::PHASE_FINISHED;
     standingsButton->setVisible(showStandings);
-    if (settingsButton) {
-        settingsButton->setVisible(state.phase() == Event_TournamentState::PHASE_DECK_BUILDING);
-    }
 }
 
 void TournamentTabGameExtension::onTournamentStateChanged(const Event_TournamentState &state)
@@ -168,26 +149,6 @@ void TournamentTabGameExtension::showDeckViewPage()
     }
 }
 
-void TournamentTabGameExtension::showTournamentSettingsDialog()
-{
-    DlgTournamentSettings dlg(tabGame);
-    if (dlg.exec() != QDialog::Accepted) {
-        return;
-    }
-
-    DlgTournamentSettingsResult result = dlg.getResult();
-
-    PlayerLogic *localPlayer = tabGame->getGame()->getPlayerManager()->getActiveLocalPlayer(-1);
-    if (!localPlayer) {
-        TabSupervisor::actShowPopup(tr("You are not an active player in this game."));
-        return;
-    }
-
-    Command_TournamentSettingsSelect cmd;
-    cmd.mutable_settings()->set_games_per_match(result.gamesPerMatch);
-    tabGame->getGame()->getGameEventHandler()->sendGameCommand(cmd, localPlayer->getPlayerInfo()->getId());
-}
-
 void TournamentTabGameExtension::openMatchGame(int gameId)
 {
     if (!tabGame || gameId <= 0) {

cockatrice/src/interface/widgets/tabs/tournament_tab_game_extension.h

@@ -32,14 +32,12 @@ public:
 
 private slots:
     void onTournamentStateChanged(const Event_TournamentState &state);
-    void showTournamentSettingsDialog();
     void showOverviewPage();
     void showDeckViewPage();
     void openMatchGame(int gameId);
 
 private:
     void connectSignals();
-    [[nodiscard]] bool isLocalPlayerHost() const;
     void updateDeckViewStrip(const Event_TournamentState &state);
     void updateNavigationButtons(const Event_TournamentState &state);
 
@@ -48,7 +46,6 @@ private:
     QWidget *tournamentOverviewWidget = nullptr;
     QPushButton *backToGameButton = nullptr;
     QPushButton *standingsButton = nullptr;
-    QPushButton *settingsButton = nullptr;
     QLabel *deckViewStatusLabel = nullptr;
     Event_TournamentState::TournamentPhase lastKnownPhase = Event_TournamentState::PHASE_DECK_BUILDING;
     bool hasLastKnownPhase = false;