[Client] Add tournament event plumbing and player extension points

Wires the client game layer for tournament state without touching
existing behavior:
- GameEventHandler dispatches Event_TournamentState (2027) to a new
  tournamentStateChanged signal
- GameMetaInfo exposes isTournament and parentGameId over the new
  ServerInfo_Game field
- PlayerEventHandler::processGameEvent is virtual and player is
  protected; PlayerLogic gains a protected constructor accepting a
  custom handler, so mode-specific subclasses can intercept events

cockatrice/src/game/game_event_handler.cpp

@@ -26,6 +26,7 @@
 #include <libcockatrice/protocol/pb/event_reverse_turn.pb.h>
 #include <libcockatrice/protocol/pb/event_set_active_phase.pb.h>
 #include <libcockatrice/protocol/pb/event_set_active_player.pb.h>
+#include <libcockatrice/protocol/pb/event_tournament_state.pb.h>
 #include <libcockatrice/protocol/pb/game_event_container.pb.h>
 #include <libcockatrice/protocol/pending_command.h>
 
@@ -158,6 +159,9 @@ void GameEventHandler::processGameEventContainer(const GameEventContainer &cont,
                 case GameEvent::REVERSE_TURN:
                     eventReverseTurn(event.GetExtension(Event_ReverseTurn::ext), playerId, context);
                     break;
+                case GameEvent::TOURNAMENT_STATE:
+                    emit tournamentStateChanged(event.GetExtension(Event_TournamentState::ext));
+                    break;
 
                 default: {
                     PlayerLogic *player = game->getPlayerManager()->getPlayers().value(playerId, 0);
@@ -263,6 +267,12 @@ void GameEventHandler::eventGameStateChanged(const Event_GameStateChanged &event
                                              int /*eventPlayerId*/,
                                              const GameEventContext & /*context*/)
 {
+    // Sub-games of a tournament report their parent hub game so the client can
+    // route "close game" back to the parent tab.
+    if (event.parent_game_id() != -1) {
+        game->getGameMetaInfo()->setParentGameId(event.parent_game_id());
+    }
+
     const int playerListSize = event.player_list_size();
 
     QVector<QPair<int, QPair<QString, QString>>> opponentDecksToDisplay;

cockatrice/src/game/game_event_handler.h

@@ -43,6 +43,7 @@ class Event_SetActivePhase;
 class Event_GameSay;
 class Event_Kicked;
 class Event_ReverseTurn;
+class Event_TournamentState;
 class Event_Ping;
 
 inline Q_LOGGING_CATEGORY(GameEventHandlerLog, "game_event_handler");
@@ -329,6 +330,7 @@ signals:
 
     void gameStopped();
     void gameClosed();
+    void tournamentStateChanged(const Event_TournamentState &state);
     void playerPropertiesChanged(const ServerInfo_PlayerProperties &prop, int playerId);
     void playerJoined(const ServerInfo_PlayerProperties &playerInfo);
     void playerLeft(int leavingPlayerId);

cockatrice/src/game/game_meta_info.h

@@ -84,6 +84,26 @@ public:
         return roomGameTypes.find(gameInfo_.game_types(index)).value();
     }
 
+    bool isTournament() const
+    {
+        return gameInfo_.is_tournament();
+    }
+
+    void setIsTournament(bool t)
+    {
+        gameInfo_.set_is_tournament(t);
+    }
+
+    int parentGameId() const
+    {
+        return parentGameId_;
+    }
+
+    void setParentGameId(int id)
+    {
+        parentGameId_ = id;
+    }
+
 public slots:
     void setStarted(bool s)
     {
@@ -108,6 +128,7 @@ signals:
 
 private:
     ServerInfo_Game gameInfo_;
+    int parentGameId_ = -1;
 };
 
 #endif // GAME_META_INFO_H

cockatrice/src/game/player/player_event_handler.h

@@ -90,10 +90,10 @@ public:
      * @param context Additional context (undo, judge, etc.).
      * @param options Processing options (UI suppression, reveal behavior).
      */
-    void processGameEvent(GameEvent::GameEventType type,
-                          const GameEvent &event,
-                          const GameEventContext &context,
-                          EventProcessingOptions options);
+    virtual void processGameEvent(GameEvent::GameEventType type,
+                                  const GameEvent &event,
+                                  const GameEventContext &context,
+                                  EventProcessingOptions options);
 
     /** @} */
 
@@ -266,7 +266,7 @@ signals:
     void cardZoneChanged(CardItem *card, bool sameZone);
     void requestCardMenuUpdate(const CardItem *card);
 
-private:
+protected:
     /** Owning player instance. */
     PlayerLogic *player;
 

cockatrice/src/game/player/player_logic.cpp

@@ -37,6 +37,19 @@ PlayerLogic::PlayerLogic(const ServerInfo_User &info, int _id, bool _local, bool
     initializeZones();
 }
 
+PlayerLogic::PlayerLogic(const ServerInfo_User &info,
+                         int _id,
+                         bool _local,
+                         bool _judge,
+                         AbstractGame *_parent,
+                         PlayerEventHandler *customEventHandler)
+    : QObject(_parent), game(_parent), playerInfo(new PlayerInfo(info, _id, _local, _judge)),
+      playerEventHandler(customEventHandler), playerActions(new PlayerActions(this)), active(false), conceded(false),
+      zoneId(0), dialogSemaphore(false)
+{
+    initializeZones();
+}
+
 void PlayerLogic::initializeZones()
 {
     addZone(new PileZoneLogic(this, ZoneNames::DECK, false, true, false, this));

cockatrice/src/game/player/player_logic.h

@@ -99,7 +99,30 @@ public:
     PlayerLogic(const ServerInfo_User &info, int _id, bool _local, bool _judge, AbstractGame *_parent);
     ~PlayerLogic() override;
 
-    void initializeZones();
+protected:
+    /**
+     * @brief Constructor for subclasses that need a custom event handler (e.g. DraftPlayerLogic).
+     *
+     * @p customEventHandler must be non-null and either QObject-parented to this PlayerLogic
+     * or deleted externally; it is not owned by PlayerLogic. The handler connects to @c player
+     * during its own constructor, so passing a freshly built subclass handler from an
+     * initializer list is safe.
+     */
+    PlayerLogic(const ServerInfo_User &info,
+                int _id,
+                bool _local,
+                bool _judge,
+                AbstractGame *_parent,
+                PlayerEventHandler *customEventHandler);
+
+public:
+    /**
+     * @brief Creates the standard zone set.
+     *
+     * Not virtually dispatched from constructors — subclasses overriding this must add
+     * their extra zones in their own constructor body.
+     */
+    virtual void initializeZones();
     void updateZones();
     void clear();
 

cockatrice/src/interface/widgets/settings_page/appearance_settings_page.cpp

@@ -154,6 +154,48 @@ AppearanceSettingsPage::AppearanceSettingsPage()
     homeTabGroupBox = new QGroupBox;
     homeTabGroupBox->setLayout(homeTabGrid);
 
+    // Playmat settings
+    playmatVisibilityCombo.addItem(tr("Show all playmats"), PlaymatVisibilityAll);
+    playmatVisibilityCombo.addItem(tr("Show own playmat only"), PlaymatVisibilityOwnOnly);
+    playmatVisibilityCombo.addItem(tr("Don't use playmats"), PlaymatVisibilityNone);
+    int visIdx = playmatVisibilityCombo.findData(settings.userInterface().getPlaymatVisibility());
+    if (visIdx >= 0) {
+        playmatVisibilityCombo.setCurrentIndex(visIdx);
+    }
+    connect(&playmatVisibilityCombo, qOverload<int>(&QComboBox::currentIndexChanged), this, [this](int index) {
+        SettingsCache::instance().userInterface().setPlaymatVisibility(playmatVisibilityCombo.itemData(index).toInt());
+    });
+    playmatVisibilityLabel.setBuddy(&playmatVisibilityCombo);
+
+    // Playmat mode: Override / Fallback / Deck-only
+    playmatModeCombo.addItem(tr("Override deck playmat"), PlaymatModeOverrideDeck);
+    playmatModeCombo.addItem(tr("Fallback if deck has none"), PlaymatModeFallback);
+    playmatModeCombo.addItem(tr("Deck only, ignore collection"), PlaymatModeDeckOnly);
+    int modeIdx = playmatModeCombo.findData(settings.userInterface().getPlaymatMode());
+    if (modeIdx >= 0) {
+        playmatModeCombo.setCurrentIndex(modeIdx);
+    }
+    connect(&playmatModeCombo, qOverload<int>(&QComboBox::currentIndexChanged), this, [this](int index) {
+        SettingsCache::instance().userInterface().setPlaymatMode(playmatModeCombo.itemData(index).toInt());
+    });
+    playmatModeLabel.setBuddy(&playmatModeCombo);
+
+    // User-level playmat settings: fallback collection.
+    connect(&playmatDefaultEditButton, &QPushButton::clicked, this,
+            &AppearanceSettingsPage::openPlaymatCollectionDialog);
+
+    auto *playmatGrid = new QGridLayout;
+    playmatGrid->addWidget(&playmatVisibilityLabel, 0, 0, 1, 1);
+    playmatGrid->addWidget(&playmatVisibilityCombo, 0, 1, 1, 1);
+    playmatGrid->addWidget(&playmatModeLabel, 1, 0, 1, 1);
+    playmatGrid->addWidget(&playmatModeCombo, 1, 1, 1, 1);
+    playmatGrid->addWidget(&playmatDefaultLabel, 2, 0, 1, 1);
+    playmatGrid->addWidget(&playmatDefaultEditButton, 2, 1, 1, 1);
+
+    playmatGroupBox = new QGroupBox;
+    playmatGroupBox->setLayout(playmatGrid);
+
+    // Styling settings
     styleUserListCheckBox.setChecked(settings.appearance().getStyleUserList());
     connect(&styleUserListCheckBox, &QCheckBox::QT_STATE_CHANGED, &settings.appearance(),
             &AppearanceSettings::setStyleUserList);
@@ -259,7 +301,6 @@ AppearanceSettingsPage::AppearanceSettingsPage()
     cardLayoutGroupBox->setLayout(cardLayoutGrid);
 
     // Card counter colors
-
     auto *cardCounterColorsLayout = new QGridLayout;
     cardCounterColorsLayout->setColumnStretch(1, 1);
     cardCounterColorsLayout->setColumnStretch(3, 1);
@@ -339,47 +380,6 @@ AppearanceSettingsPage::AppearanceSettingsPage()
     tableGroupBox = new QGroupBox;
     tableGroupBox->setLayout(tableGrid);
 
-    // Playmat settings
-    playmatVisibilityCombo.addItem(tr("Show all playmats"), PlaymatVisibilityAll);
-    playmatVisibilityCombo.addItem(tr("Show own playmat only"), PlaymatVisibilityOwnOnly);
-    playmatVisibilityCombo.addItem(tr("Don't use playmats"), PlaymatVisibilityNone);
-    int visIdx = playmatVisibilityCombo.findData(settings.userInterface().getPlaymatVisibility());
-    if (visIdx >= 0) {
-        playmatVisibilityCombo.setCurrentIndex(visIdx);
-    }
-    connect(&playmatVisibilityCombo, qOverload<int>(&QComboBox::currentIndexChanged), this, [this](int index) {
-        SettingsCache::instance().userInterface().setPlaymatVisibility(playmatVisibilityCombo.itemData(index).toInt());
-    });
-    playmatVisibilityLabel.setBuddy(&playmatVisibilityCombo);
-
-    // Playmat mode: Override / Fallback / Deck-only
-    playmatModeCombo.addItem(tr("Override deck playmat"), PlaymatModeOverrideDeck);
-    playmatModeCombo.addItem(tr("Fallback if deck has none"), PlaymatModeFallback);
-    playmatModeCombo.addItem(tr("Deck only, ignore collection"), PlaymatModeDeckOnly);
-    int modeIdx = playmatModeCombo.findData(settings.userInterface().getPlaymatMode());
-    if (modeIdx >= 0) {
-        playmatModeCombo.setCurrentIndex(modeIdx);
-    }
-    connect(&playmatModeCombo, qOverload<int>(&QComboBox::currentIndexChanged), this, [this](int index) {
-        SettingsCache::instance().userInterface().setPlaymatMode(playmatModeCombo.itemData(index).toInt());
-    });
-    playmatModeLabel.setBuddy(&playmatModeCombo);
-
-    // User-level playmat settings: fallback collection.
-    connect(&playmatDefaultEditButton, &QPushButton::clicked, this,
-            &AppearanceSettingsPage::openPlaymatCollectionDialog);
-
-    auto *playmatGrid = new QGridLayout;
-    playmatGrid->addWidget(&playmatVisibilityLabel, 0, 0, 1, 1);
-    playmatGrid->addWidget(&playmatVisibilityCombo, 0, 1, 1, 1);
-    playmatGrid->addWidget(&playmatModeLabel, 1, 0, 1, 1);
-    playmatGrid->addWidget(&playmatModeCombo, 1, 1, 1, 1);
-    playmatGrid->addWidget(&playmatDefaultLabel, 2, 0, 1, 1);
-    playmatGrid->addWidget(&playmatDefaultEditButton, 2, 1, 1, 1);
-
-    playmatGroupBox = new QGroupBox;
-    playmatGroupBox->setLayout(playmatGrid);
-
     // putting it all together
     auto *mainLayout = new QVBoxLayout;
     mainLayout->addWidget(themeGroupBox);
@@ -512,6 +512,12 @@ void AppearanceSettingsPage::retranslateUi()
     homeTabButtonColorSourceBox.setToolTip(
         tr("Automatic: extract from background if present, otherwise use theme default"));
 
+    playmatGroupBox->setTitle(tr("Playmat settings"));
+    playmatVisibilityLabel.setText(tr("Playmat visibility:"));
+    playmatModeLabel.setText(tr("Default collection behavior:"));
+    playmatDefaultLabel.setText(tr("Default playmat collection:"));
+    playmatDefaultEditButton.setText(tr("Edit..."));
+
     stylingGroupBox->setTitle(tr("Styling settings"));
     styleUserListCheckBox.setText(tr("Style user list"));
 
@@ -554,9 +560,4 @@ void AppearanceSettingsPage::retranslateUi()
     tableGroupBox->setTitle(tr("Table grid layout"));
     invertVerticalCoordinateCheckBox.setText(tr("Invert vertical coordinate"));
     minPlayersForMultiColumnLayoutLabel.setText(tr("Minimum player count for multi-column layout:"));
-    playmatGroupBox->setTitle(tr("Playmat settings"));
-    playmatVisibilityLabel.setText(tr("Playmat visibility:"));
-    playmatModeLabel.setText(tr("Default collection behavior:"));
-    playmatDefaultLabel.setText(tr("Default playmat collection:"));
-    playmatDefaultEditButton.setText(tr("Edit..."));
 }

cockatrice/src/interface/widgets/settings_page/appearance_settings_page.h

@@ -44,46 +44,55 @@ private:
     QLabel homeTabButtonColorSourceLabel;
     QComboBox homeTabButtonColorSourceBox;
 
-    QCheckBox styleUserListCheckBox;
-    QCheckBox showShortcutsCheckBox;
-    QCheckBox showGameSelectorFilterToolbarCheckBox;
-    QLabel minPlayersForMultiColumnLayoutLabel;
-    QLabel maxFontSizeForCardsLabel;
-    QCheckBox overrideAllCardArtWithPersonalPreferenceCheckBox;
-    QCheckBox bumpSetsWithCardsInDeckToTopCheckBox;
-    QCheckBox displayCardNamesCheckBox;
-    QCheckBox autoRotateSidewaysLayoutCardsCheckBox;
-    QCheckBox cardScalingCheckBox;
-    QCheckBox roundCardCornersCheckBox;
-    QLabel verticalCardOverlapPercentLabel;
-    QSpinBox verticalCardOverlapPercentBox;
-    QLabel cardViewInitialRowsMaxLabel;
-    QSpinBox cardViewInitialRowsMaxBox;
-    QLabel cardViewExpandedRowsMaxLabel;
-    QSpinBox cardViewExpandedRowsMaxBox;
-    QCheckBox horizontalHandCheckBox;
-    QCheckBox leftJustifiedHandCheckBox;
-    QCheckBox invertVerticalCoordinateCheckBox;
     QLabel playmatVisibilityLabel;
     QComboBox playmatVisibilityCombo;
     QLabel playmatModeLabel;
     QComboBox playmatModeCombo;
     QLabel playmatDefaultLabel;
     QPushButton playmatDefaultEditButton;
+
+    QCheckBox styleUserListCheckBox;
+
+    QCheckBox showShortcutsCheckBox;
+    QCheckBox showGameSelectorFilterToolbarCheckBox;
+
+    QCheckBox overrideAllCardArtWithPersonalPreferenceCheckBox;
+    QCheckBox bumpSetsWithCardsInDeckToTopCheckBox;
+
+    QCheckBox displayCardNamesCheckBox;
+    QCheckBox autoRotateSidewaysLayoutCardsCheckBox;
+    QCheckBox cardScalingCheckBox;
+    QCheckBox roundCardCornersCheckBox;
+    QLabel maxFontSizeForCardsLabel;
+    QSpinBox maxFontSizeForCardsEdit;
+
+    QLabel verticalCardOverlapPercentLabel;
+    QSpinBox verticalCardOverlapPercentBox;
+    QLabel cardViewInitialRowsMaxLabel;
+    QSpinBox cardViewInitialRowsMaxBox;
+    QLabel cardViewExpandedRowsMaxLabel;
+    QSpinBox cardViewExpandedRowsMaxBox;
+
+    QList<QLabel *> cardCounterNames;
+
+    QCheckBox horizontalHandCheckBox;
+    QCheckBox leftJustifiedHandCheckBox;
+
+    QCheckBox invertVerticalCoordinateCheckBox;
+    QLabel minPlayersForMultiColumnLayoutLabel;
+    QSpinBox minPlayersForMultiColumnLayoutEdit;
+
     QGroupBox *themeGroupBox;
     QGroupBox *homeTabGroupBox;
+    QGroupBox *playmatGroupBox;
     QGroupBox *stylingGroupBox;
     QGroupBox *menuGroupBox;
     QGroupBox *printingsGroupBox;
     QGroupBox *cardsGroupBox;
     QGroupBox *cardLayoutGroupBox;
-    QGroupBox *handGroupBox;
-    QGroupBox *playmatGroupBox;
-    QGroupBox *tableGroupBox;
     QGroupBox *cardCountersGroupBox;
-    QList<QLabel *> cardCounterNames;
-    QSpinBox minPlayersForMultiColumnLayoutEdit;
-    QSpinBox maxFontSizeForCardsEdit;
+    QGroupBox *handGroupBox;
+    QGroupBox *tableGroupBox;
 
 public:
     AppearanceSettingsPage();

cockatrice/src/interface/widgets/settings_page/general_settings_page.cpp

@@ -425,29 +425,28 @@ void GeneralSettingsPage::updateStartupServerControlsVisibility()
 
 void GeneralSettingsPage::retranslateUi()
 {
+    const auto &settings = SettingsCache::instance();
+
     languageGroupBox->setTitle(tr("Language settings"));
     languageLabel.setText(tr("Language:"));
-
-    versionGroupBox->setTitle(tr("Version settings"));
-    cardDatabaseGroupBox->setTitle(tr("Card database"));
-    startupGroupBox->setTitle(tr("Startup settings"));
-
-    if (SettingsCache::instance().getIsPortableBuild()) {
-        pathsGroupBox->setTitle(tr("Paths (editing disabled in portable mode)"));
-    } else {
-        pathsGroupBox->setTitle(tr("Paths"));
-    }
     advertiseTranslationPageLabel.setText(
         QString("<a href='%1'>%2</a>").arg(WIKI_TRANSLATION_FAQ).arg(tr("How to help with translations")));
-    deckPathLabel.setText(tr("Decks directory:"));
-    filtersPathLabel.setText(tr("Filters directory:"));
-    replaysPathLabel.setText(tr("Replays directory:"));
-    picsPathLabel.setText(tr("Pictures directory:"));
-    cardDatabasePathLabel.setText(tr("Card database:"));
-    customCardDatabasePathLabel.setText(tr("Custom database directory:"));
-    tokenDatabasePathLabel.setText(tr("Token database:"));
+
+    versionGroupBox->setTitle(tr("Version settings"));
     updateReleaseChannelLabel.setText(tr("Update channel"));
     startupUpdateCheckCheckBox.setText(tr("Check for client updates on startup"));
+    updateNotificationCheckBox.setText(tr("Notify if a feature supported by the server is missing in my client"));
+    newVersionOracleCheckBox.setText(tr("Automatically run Oracle when running a new version of Cockatrice"));
+
+    // We can't change the strings after they're put into the QComboBox, so this is our workaround
+    int oldIndex = updateReleaseChannelBox.currentIndex();
+    updateReleaseChannelBox.clear();
+    for (ReleaseChannel *chan : settings.getUpdateReleaseChannels()) {
+        updateReleaseChannelBox.addItem(tr(chan->getName().toUtf8()));
+    }
+    updateReleaseChannelBox.setCurrentIndex(oldIndex);
+
+    cardDatabaseGroupBox->setTitle(tr("Card database"));
     startupCardUpdateCheckBehaviorLabel.setText(tr("Check for card database updates on startup"));
     startupCardUpdateCheckBehaviorSelector.setItemText(startupCardUpdateCheckBehaviorIndexNone, tr("Don't check"));
     startupCardUpdateCheckBehaviorSelector.setItemText(startupCardUpdateCheckBehaviorIndexPrompt,
@@ -456,8 +455,13 @@ void GeneralSettingsPage::retranslateUi()
                                                        tr("Always update in the background"));
     cardUpdateCheckIntervalLabel.setText(tr("Check for card database updates every"));
     cardUpdateCheckIntervalSpinBox.setSuffix(tr(" days"));
-    updateNotificationCheckBox.setText(tr("Notify if a feature supported by the server is missing in my client"));
-    newVersionOracleCheckBox.setText(tr("Automatically run Oracle when running a new version of Cockatrice"));
+
+    QDate lastCheckDate = settings.updates().getLastCardUpdateCheck();
+    int daysAgo = lastCheckDate.daysTo(QDate::currentDate());
+    lastCardUpdateCheckDateLabel.setText(
+        tr("Last update check on %1 (%2 days ago)").arg(lastCheckDate.toString()).arg(daysAgo));
+
+    startupGroupBox->setTitle(tr("Startup settings"));
     showTipsOnStartup.setText(tr("Show tips on startup"));
     startupTabLabel.setText(tr("Startup tab:"));
     startupTabSelector.setItemText(StartupTab::StartupTabHome, tr("Home"));
@@ -473,21 +477,18 @@ void GeneralSettingsPage::retranslateUi()
     startupServerLabel.setText(tr("Server:"));
     startupRoomLabel.setText(tr("Room:"));
     startupRoomNameEdit->setPlaceholderText(tr("Room name"));
-    resetAllPathsButton->setText(tr("Reset all paths"));
 
-    const auto &settings = SettingsCache::instance();
-
-    QDate lastCheckDate = settings.updates().getLastCardUpdateCheck();
-    int daysAgo = lastCheckDate.daysTo(QDate::currentDate());
-
-    lastCardUpdateCheckDateLabel.setText(
-        tr("Last update check on %1 (%2 days ago)").arg(lastCheckDate.toString()).arg(daysAgo));
-
-    // We can't change the strings after they're put into the QComboBox, so this is our workaround
-    int oldIndex = updateReleaseChannelBox.currentIndex();
-    updateReleaseChannelBox.clear();
-    for (ReleaseChannel *chan : settings.getUpdateReleaseChannels()) {
-        updateReleaseChannelBox.addItem(tr(chan->getName().toUtf8()));
+    if (settings.getIsPortableBuild()) {
+        pathsGroupBox->setTitle(tr("Paths (editing disabled in portable mode)"));
+    } else {
+        pathsGroupBox->setTitle(tr("Paths"));
     }
-    updateReleaseChannelBox.setCurrentIndex(oldIndex);
-}
+    deckPathLabel.setText(tr("Decks directory:"));
+    filtersPathLabel.setText(tr("Filters directory:"));
+    replaysPathLabel.setText(tr("Replays directory:"));
+    picsPathLabel.setText(tr("Pictures directory:"));
+    cardDatabasePathLabel.setText(tr("Card database:"));
+    customCardDatabasePathLabel.setText(tr("Custom database directory:"));
+    tokenDatabasePathLabel.setText(tr("Token database:"));
+    resetAllPathsButton->setText(tr("Reset all paths"));
+}

cockatrice/src/interface/widgets/settings_page/general_settings_page.h

@@ -42,6 +42,37 @@ private:
     QGroupBox *startupGroupBox;
     QGroupBox *pathsGroupBox;
 
+    QLabel languageLabel;
+    QComboBox languageBox;
+    QLabel advertiseTranslationPageLabel;
+
+    QLabel updateReleaseChannelLabel;
+    QComboBox updateReleaseChannelBox;
+    QCheckBox startupUpdateCheckCheckBox;
+    QCheckBox updateNotificationCheckBox;
+    QCheckBox newVersionOracleCheckBox;
+
+    QLabel startupCardUpdateCheckBehaviorLabel;
+    QComboBox startupCardUpdateCheckBehaviorSelector;
+    QLabel cardUpdateCheckIntervalLabel;
+    QSpinBox cardUpdateCheckIntervalSpinBox;
+    QLabel lastCardUpdateCheckDateLabel;
+
+    QCheckBox showTipsOnStartup;
+    QLabel startupTabLabel;
+    QComboBox startupTabSelector;
+    QLabel startupServerLabel;
+    QComboBox startupServerSelector;
+    QLabel startupRoomLabel;
+    QLineEdit *startupRoomNameEdit;
+
+    QLabel deckPathLabel;
+    QLabel filtersPathLabel;
+    QLabel replaysPathLabel;
+    QLabel picsPathLabel;
+    QLabel cardDatabasePathLabel;
+    QLabel customCardDatabasePathLabel;
+    QLabel tokenDatabasePathLabel;
     QLineEdit *deckPathEdit;
     QLineEdit *filtersPathEdit;
     QLineEdit *replaysPathEdit;
@@ -51,33 +82,6 @@ private:
     QLineEdit *tokenDatabasePathEdit;
     QPushButton *resetAllPathsButton;
     QLabel *allPathsResetLabel;
-    QComboBox languageBox;
-    QCheckBox startupUpdateCheckCheckBox;
-    QLabel startupCardUpdateCheckBehaviorLabel;
-    QComboBox startupCardUpdateCheckBehaviorSelector;
-    QLabel cardUpdateCheckIntervalLabel;
-    QSpinBox cardUpdateCheckIntervalSpinBox;
-    QLabel lastCardUpdateCheckDateLabel;
-    QCheckBox updateNotificationCheckBox;
-    QCheckBox newVersionOracleCheckBox;
-    QComboBox updateReleaseChannelBox;
-    QLabel languageLabel;
-    QLabel deckPathLabel;
-    QLabel filtersPathLabel;
-    QLabel replaysPathLabel;
-    QLabel picsPathLabel;
-    QLabel cardDatabasePathLabel;
-    QLabel customCardDatabasePathLabel;
-    QLabel tokenDatabasePathLabel;
-    QLabel updateReleaseChannelLabel;
-    QLabel advertiseTranslationPageLabel;
-    QCheckBox showTipsOnStartup;
-    QLabel startupTabLabel;
-    QComboBox startupTabSelector;
-    QLabel startupServerLabel;
-    QComboBox startupServerSelector;
-    QLabel startupRoomLabel;
-    QLineEdit *startupRoomNameEdit;
 };
 
 #endif // COCKATRICE_GENERAL_SETTINGS_PAGE_H

cockatrice/src/interface/widgets/settings_page/user_interface_settings_page.cpp

@@ -20,26 +20,7 @@ enum visualDeckStoragePromptForConversionIndex
 
 UserInterfaceSettingsPage::UserInterfaceSettingsPage()
 {
-    // general settings and notification settings
-    notificationsEnabledCheckBox.setChecked(SettingsCache::instance().userInterface().getNotificationsEnabled());
-    connect(&notificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED, &SettingsCache::instance().userInterface(),
-            &InterfaceSettings::setNotificationsEnabled);
-    connect(&notificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED, this,
-            &UserInterfaceSettingsPage::setNotificationEnabled);
-
-    specNotificationsEnabledCheckBox.setChecked(
-        SettingsCache::instance().userInterface().getSpectatorNotificationsEnabled());
-    specNotificationsEnabledCheckBox.setEnabled(SettingsCache::instance().userInterface().getNotificationsEnabled());
-    connect(&specNotificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED, &SettingsCache::instance().userInterface(),
-            &InterfaceSettings::setSpectatorNotificationsEnabled);
-
-    buddyConnectNotificationsEnabledCheckBox.setChecked(
-        SettingsCache::instance().userInterface().getBuddyConnectNotificationsEnabled());
-    buddyConnectNotificationsEnabledCheckBox.setEnabled(
-        SettingsCache::instance().userInterface().getNotificationsEnabled());
-    connect(&buddyConnectNotificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED,
-            &SettingsCache::instance().userInterface(), &InterfaceSettings::setBuddyConnectNotificationsEnabled);
-
+    // general settings
     doubleClickToPlayCheckBox.setChecked(SettingsCache::instance().userInterface().getDoubleClickToPlay());
     connect(&doubleClickToPlayCheckBox, &QCheckBox::QT_STATE_CHANGED, &SettingsCache::instance().userInterface(),
             &InterfaceSettings::setDoubleClickToPlay);
@@ -103,6 +84,26 @@ UserInterfaceSettingsPage::UserInterfaceSettingsPage()
     generalGroupBox = new QGroupBox;
     generalGroupBox->setLayout(generalGrid);
 
+    // notification settings
+    notificationsEnabledCheckBox.setChecked(SettingsCache::instance().userInterface().getNotificationsEnabled());
+    connect(&notificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED, &SettingsCache::instance().userInterface(),
+            &InterfaceSettings::setNotificationsEnabled);
+    connect(&notificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED, this,
+            &UserInterfaceSettingsPage::setNotificationEnabled);
+
+    specNotificationsEnabledCheckBox.setChecked(
+        SettingsCache::instance().userInterface().getSpectatorNotificationsEnabled());
+    specNotificationsEnabledCheckBox.setEnabled(SettingsCache::instance().userInterface().getNotificationsEnabled());
+    connect(&specNotificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED, &SettingsCache::instance().userInterface(),
+            &InterfaceSettings::setSpectatorNotificationsEnabled);
+
+    buddyConnectNotificationsEnabledCheckBox.setChecked(
+        SettingsCache::instance().userInterface().getBuddyConnectNotificationsEnabled());
+    buddyConnectNotificationsEnabledCheckBox.setEnabled(
+        SettingsCache::instance().userInterface().getNotificationsEnabled());
+    connect(&buddyConnectNotificationsEnabledCheckBox, &QCheckBox::QT_STATE_CHANGED,
+            &SettingsCache::instance().userInterface(), &InterfaceSettings::setBuddyConnectNotificationsEnabled);
+
     auto *notificationsGrid = new QGridLayout;
     notificationsGrid->addWidget(&notificationsEnabledCheckBox, 0, 0);
     notificationsGrid->addWidget(&specNotificationsEnabledCheckBox, 1, 0);
@@ -355,6 +356,7 @@ void UserInterfaceSettingsPage::retranslateUi()
     notificationsEnabledCheckBox.setText(tr("Enable notifications in taskbar"));
     specNotificationsEnabledCheckBox.setText(tr("Notify in the taskbar for game events while you are spectating"));
     buddyConnectNotificationsEnabledCheckBox.setText(tr("Notify in the taskbar when users in your buddy list connect"));
+
     animationGroupBox->setTitle(tr("Animation settings"));
     enableAllAnimationsButton.setText(tr("&Enable all animations"));
     disableAllAnimationsButton.setText(tr("&Disable all animations"));
@@ -362,6 +364,7 @@ void UserInterfaceSettingsPage::retranslateUi()
     arrowDrawAnimationCheckBox.setText(tr("&Arrow draw animation"));
     lifeCounterAnimationsCheckBox.setText(tr("Life counter flash"));
     battlefieldFlashCheckBox.setText(tr("Battlefield flash on damage"));
+
     deckEditorGroupBox->setTitle(tr("Deck editor/storage settings"));
     openDeckInNewTabCheckBox.setText(tr("Open deck in new tab by default"));
     visualDeckStorageInGameCheckBox.setText(tr("Use visual deck storage in game lobby"));
@@ -397,8 +400,8 @@ void UserInterfaceSettingsPage::retranslateUi()
         0, CommanderBracketNames::CommanderSpellbookBracketNames);
     commanderSpellbookIntegrationBracketNamingSelector.setItemText(
         1, CommanderBracketNames::OfficialCommanderBracketNames);
-
     commanderSpellbookIntegrationUseOfficialBracketNamesExplainer.setToolTip(CommanderBracketNames::Explainer);
+
     replayGroupBox->setTitle(tr("Replay settings"));
     rewindBufferingMsLabel.setText(tr("Buffer time for backwards skip via shortcut:"));
     rewindBufferingMsBox.setSuffix(" ms");

cockatrice/src/interface/widgets/settings_page/user_interface_settings_page.h

@@ -23,9 +23,6 @@ private slots:
     void updateCommanderSpellbookUiState();
 
 private:
-    QCheckBox notificationsEnabledCheckBox;
-    QCheckBox specNotificationsEnabledCheckBox;
-    QCheckBox buddyConnectNotificationsEnabledCheckBox;
     QCheckBox doubleClickToPlayCheckBox;
     QCheckBox clickPlaysAllSelectedCheckBox;
     QCheckBox playToStackCheckBox;
@@ -37,12 +34,18 @@ private:
     QCheckBox showTotalSelectionCountCheckBox;
     QCheckBox useTearOffMenusCheckBox;
     QCheckBox keepGameChatFocusCheckBox;
+
+    QCheckBox notificationsEnabledCheckBox;
+    QCheckBox specNotificationsEnabledCheckBox;
+    QCheckBox buddyConnectNotificationsEnabledCheckBox;
+
     QPushButton enableAllAnimationsButton;
     QPushButton disableAllAnimationsButton;
     QCheckBox tapAnimationCheckBox;
     QCheckBox arrowDrawAnimationCheckBox;
     QCheckBox lifeCounterAnimationsCheckBox;
     QCheckBox battlefieldFlashCheckBox;
+
     QCheckBox openDeckInNewTabCheckBox;
     QLabel visualDeckStoragePromptForConversionLabel;
     QComboBox visualDeckStoragePromptForConversionSelector;
@@ -57,8 +60,10 @@ private:
     QLabel commanderSpellbookIntegrationUseOfficialBracketNamesLabel;
     QToolButton commanderSpellbookIntegrationUseOfficialBracketNamesExplainer;
     QComboBox commanderSpellbookIntegrationBracketNamingSelector;
+
     QLabel rewindBufferingMsLabel;
     QSpinBox rewindBufferingMsBox;
+
     QGroupBox *generalGroupBox;
     QGroupBox *notificationsGroupBox;
     QGroupBox *animationGroupBox;

cockatrice/src/interface/widgets/visual_deck_storage/visual_deck_storage_folder_display_widget.cpp

@@ -125,9 +125,7 @@ void VisualDeckStorageFolderDisplayWidget::continueDeckPass()
         }
 
         const bool matches = index.data(VisualDeckStorageRoles::FilterMatchRole).toBool();
-        if (matches == deckPreviewWidget->isHidden()) {
-            deckPreviewWidget->setVisible(matches);
-        }
+        deckPreviewWidget->setVisible(matches);
         if (matches) {
             ++visibleDeckCount;
         }

libcockatrice_network/libcockatrice/network/server/remote/CMakeLists.txt

@@ -14,9 +14,12 @@ set(HEADERS
     game/server_deck_validation_strategy.h
     game/server_game.h
     game/server_game_lifecycle_strategy.h
-    game/server_match_result_strategy.h
     game/server_match_game_factory.h
+    game/server_match_result_strategy.h
     game/server_player.h
+    game/server_tournament.h
+    game/server_tournament_lifecycle_strategy.h
+    game/server_tournament_match_result_strategy.h
     game/server_spectator.h
     server.h
     server_abstractuserinterface.h
@@ -43,6 +46,9 @@ add_library(
   game/server_game.cpp
   game/server_player.cpp
   game/server_spectator.cpp
+  game/server_tournament.cpp
+  game/server_tournament_lifecycle_strategy.cpp
+  game/server_tournament_match_result_strategy.cpp
   server.cpp
   server_abstractuserinterface.cpp
   server_database_interface.cpp

libcockatrice_network/libcockatrice/network/server/remote/game/server_abstract_participant.cpp

@@ -41,6 +41,7 @@
 #include <libcockatrice/protocol/pb/command_set_sideboard_lock.pb.h>
 #include <libcockatrice/protocol/pb/command_set_sideboard_plan.pb.h>
 #include <libcockatrice/protocol/pb/command_shuffle.pb.h>
+#include <libcockatrice/protocol/pb/command_tournament.pb.h>
 #include <libcockatrice/protocol/pb/command_undo_draw.pb.h>
 #include <libcockatrice/protocol/pb/context_connection_state_changed.pb.h>
 #include <libcockatrice/protocol/pb/event_game_say.pb.h>
@@ -536,6 +537,15 @@ Server_AbstractParticipant::processGameCommand(const GameCommand &command, Respo
         case GameCommand::SET_PLAYMAT:
             return cmdSetPlaymat(command.GetExtension(Command_SetPlaymat::ext), rc, ges);
             break;
+        case GameCommand::REPORT_MATCH_RESULT:
+            return cmdReportMatchResult(command.GetExtension(Command_ReportMatchResult::ext), rc, ges);
+            break;
+        case GameCommand::ADVANCE_TOURNAMENT:
+            return cmdAdvanceTournament(command.GetExtension(Command_AdvanceTournament::ext), rc, ges);
+            break;
+        case GameCommand::TOURNAMENT_SETTINGS_SELECT:
+            return cmdTournamentSettingsSelect(command.GetExtension(Command_TournamentSettingsSelect::ext), rc, ges);
+            break;
         default:
             return Response::RespInvalidCommand;
     }
@@ -570,7 +580,7 @@ void Server_AbstractParticipant::setUserInterface(Server_AbstractUserInterface *
 void Server_AbstractParticipant::disconnectClient()
 {
     bool isRegistered = userInfo->user_level() & ServerInfo_User::IsRegistered;
-    if (!isRegistered || spectator) {
+    if (!isRegistered || spectator || game->getDisconnectRemovesPlayer()) {
         game->removeParticipant(this, Event_Leave::USER_DISCONNECTED);
     } else {
         setUserInterface(nullptr);
@@ -584,3 +594,25 @@ void Server_AbstractParticipant::getInfo(ServerInfo_Player *info,
 {
     getProperties(*info->mutable_properties(), withUserInfo);
 }
+
+Response::ResponseCode Server_AbstractParticipant::cmdReportMatchResult(const Command_ReportMatchResult & /*cmd*/,
+                                                                        ResponseContainer & /*rc*/,
+                                                                        GameEventStorage & /*ges*/)
+{
+    return Response::RespContextError;
+}
+
+Response::ResponseCode Server_AbstractParticipant::cmdAdvanceTournament(const Command_AdvanceTournament & /*cmd*/,
+                                                                        ResponseContainer & /*rc*/,
+                                                                        GameEventStorage & /*ges*/)
+{
+    return Response::RespContextError;
+}
+
+Response::ResponseCode
+Server_AbstractParticipant::cmdTournamentSettingsSelect(const Command_TournamentSettingsSelect & /*cmd*/,
+                                                        ResponseContainer & /*rc*/,
+                                                        GameEventStorage & /*ges*/)
+{
+    return Response::RespContextError;
+}

libcockatrice_network/libcockatrice/network/server/remote/game/server_abstract_participant.h

@@ -53,6 +53,9 @@ class Command_DeckSelect;
 class Command_SetSideboardLock;
 class Command_ChangeZoneProperties;
 class Command_SetPlaymat;
+class Command_ReportMatchResult;
+class Command_AdvanceTournament;
+class Command_TournamentSettingsSelect;
 
 class Server_AbstractParticipant : public Server_ArrowTarget, public ServerInfo_User_Container
 {
@@ -175,6 +178,13 @@ public:
     cmdReverseTurn(const Command_ReverseTurn & /*cmd*/, ResponseContainer & /*rc*/, GameEventStorage &ges);
     virtual Response::ResponseCode
     cmdChangeZoneProperties(const Command_ChangeZoneProperties &cmd, ResponseContainer &rc, GameEventStorage &ges);
+    virtual Response::ResponseCode
+    cmdReportMatchResult(const Command_ReportMatchResult &cmd, ResponseContainer &rc, GameEventStorage &ges);
+    virtual Response::ResponseCode
+    cmdAdvanceTournament(const Command_AdvanceTournament &cmd, ResponseContainer &rc, GameEventStorage &ges);
+    virtual Response::ResponseCode cmdTournamentSettingsSelect(const Command_TournamentSettingsSelect &cmd,
+                                                               ResponseContainer &rc,
+                                                               GameEventStorage &ges);
 
     Response::ResponseCode processGameCommand(const GameCommand &command, ResponseContainer &rc, GameEventStorage &ges);
     void sendGameEvent(const GameEventContainer &event);

libcockatrice_network/libcockatrice/network/server/remote/game/server_abstract_player.cpp

@@ -1663,3 +1663,9 @@ void Server_AbstractPlayer::getPlayerProperties(ServerInfo_PlayerProperties &res
         playmatParams->set_zoom(playmat.params.zoom);
     }
 }
+
+void Server_AbstractPlayer::setDeck(DeckList *_deck)
+{
+    delete deck;
+    deck = _deck;
+}

libcockatrice_network/libcockatrice/network/server/remote/game/server_abstract_player.h

@@ -47,6 +47,7 @@ public:
     {
         return deck;
     }
+    void setDeck(DeckList *_deck);
     bool getReadyStart() const
     {
         return readyStart;

libcockatrice_network/libcockatrice/network/server/remote/game/server_game.cpp

@@ -30,10 +30,14 @@
 #include "server_cardzone.h"
 #include "server_player.h"
 #include "server_spectator.h"
+#include "server_tournament.h"
+#include "server_tournament_lifecycle_strategy.h"
+#include "server_tournament_match_result_strategy.h"
 
 #include <QDebug>
 #include <QRegularExpression>
 #include <QTimer>
+#include <algorithm>
 #include <google/protobuf/descriptor.h>
 #include <libcockatrice/deck_list/deck_list.h>
 #include <libcockatrice/protocol/pb/context_connection_state_changed.pb.h>
@@ -62,8 +66,9 @@ Server_Game::Server_Game(const GameConfig &config, Server_Room *_room)
       spectatorsCanTalk(config.spectatorsCanTalk), spectatorsSeeEverything(config.spectatorsSeeEverything),
       startingLifeTotal(config.startingLifeTotal), shareDecklistsOnLoad(config.shareDecklistsOnLoad),
       inactivityCounter(0), startTimeOfThisGame(0), secondsElapsed(0), firstGameStarted(false),
-      turnOrderReversed(false), startTime(QDateTime::currentDateTime()), pingClock(nullptr),
-      deckValidationStrategy(new Server_DefaultDeckValidationStrategy),
+      turnOrderReversed(false), startTime(QDateTime::currentDateTime()), pingClock(nullptr), isTournament(false),
+      tournament(nullptr), tournamentParentGame(nullptr), tournamentMatchPlayer1Id(-1), tournamentMatchPlayer2Id(-1),
+      disconnectRemovesPlayer(false), deckValidationStrategy(new Server_DefaultDeckValidationStrategy),
       lifecycleStrategy(new Server_DefaultLifecycleStrategy), matchResultStrategy(new Server_NullMatchResultStrategy),
       gameMutex()
 {
@@ -265,6 +270,12 @@ void Server_Game::createGameStateChangedEvent(Event_GameStateChanged *event,
         event->set_game_started(false);
     }
 
+    event->set_is_tournament(isTournament);
+
+    if (tournamentParentGame) {
+        event->set_parent_game_id(tournamentParentGame->getGameId());
+    }
+
     for (Server_AbstractParticipant *participant : participants.values()) {
         participant->getInfo(event->add_player_list(), recipient, omniscient, withUserInfo);
     }
@@ -313,7 +324,7 @@ void Server_Game::doStartGameIfReady(bool forceStartGame)
     Server_DatabaseInterface *databaseInterface = room->getServer()->getDatabaseInterface();
     QMutexLocker locker(&gameMutex);
 
-    if (getPlayerCount() < maxPlayers && !forceStartGame) {
+    if (!isTournament && getPlayerCount() < maxPlayers && !forceStartGame) {
         return;
     }
 
@@ -861,6 +872,7 @@ void Server_Game::getInfo(ServerInfo_Game &result) const
         result.set_share_decklists_on_load(shareDecklistsOnLoad);
         result.set_spectators_count(getSpectatorCount());
         result.set_start_time(startTime.toSecsSinceEpoch());
+        result.set_is_tournament(isTournament);
     }
 }
 
@@ -911,3 +923,86 @@ void Server_Game::setDeckValidationStrategy(Server_DeckValidationStrategy *strat
 {
     deckValidationStrategy.reset(strategy);
 }
+
+void Server_Game::setMatchResultStrategy(Server_MatchResultStrategy *strategy)
+{
+    matchResultStrategy.reset(strategy);
+}
+
+void Server_Game::setIsTournamentGame(bool _isTournament)
+{
+    isTournament = _isTournament;
+    if (isTournament) {
+        tournament = new Server_Tournament(this, this, this);
+        lifecycleStrategy.reset(new Server_TournamentLifecycleStrategy);
+        matchResultStrategy.reset(new Server_TournamentMatchResultStrategy);
+    } else if (tournament) {
+        delete tournament;
+        tournament = nullptr;
+        lifecycleStrategy.reset(new Server_DefaultLifecycleStrategy);
+        matchResultStrategy.reset(new Server_NullMatchResultStrategy);
+    }
+}
+
+void Server_Game::startTournament()
+{
+    if (!tournament) {
+        tournament = new Server_Tournament(this, this, this);
+    }
+
+    if (!tournament->isStarted()) {
+        // Add all current players to the tournament
+        auto players = getPlayers();
+        for (auto *player : players.values()) {
+            tournament->addPlayer(player->getPlayerId(), QString::fromStdString(player->getUserInfo()->name()));
+        }
+
+        tournament->startTournament();
+    }
+
+    GameEventStorage ges;
+    tournament->broadcastTournamentState(ges);
+    ges.sendToGame(this);
+}
+
+void Server_Game::setPlayerTournamentDeck(int playerId, DeckList *deck)
+{
+    if (tournament) {
+        tournament->setPlayerDeck(playerId, deck);
+    }
+}
+
+void Server_Game::setTournamentMatchInfo(Server_Game *parentGame, int p1Id, int p2Id)
+{
+    tournamentParentGame = parentGame;
+    tournamentMatchPlayer1Id = p1Id;
+    tournamentMatchPlayer2Id = p2Id;
+}
+
+Server_Game *Server_Game::createMatchGame(const GameConfig &config, int &outGameId)
+{
+    Server_DatabaseInterface *databaseInterface = room->getServer()->getDatabaseInterface();
+    outGameId = databaseInterface->getNextGameId();
+    if (outGameId == -1) {
+        return nullptr;
+    }
+
+    GameConfig matchConfig = config;
+    matchConfig.gameId = outGameId;
+    auto *game = new Server_Game(matchConfig, room);
+    // Sub-games carry the tournament flag (for protocol fields) but keep the default
+    // strategies; the parent tournament drives them through the match result strategy
+    // installed by Server_Tournament::createMatchGame.
+    game->isTournament = true;
+    return game;
+}
+
+Server_AbstractUserInterface *Server_Game::getUserInterface(const QString &playerName)
+{
+    return room->getUserInterfaceByName(playerName);
+}
+
+void Server_Game::addGameToRoom(Server_Game *game)
+{
+    room->addGame(game);
+}

libcockatrice_network/libcockatrice/network/server/remote/game/server_game.h

@@ -24,6 +24,7 @@
 #include "game_config.h"
 #include "server_deck_validation_strategy.h"
 #include "server_game_lifecycle_strategy.h"
+#include "server_match_game_factory.h"
 #include "server_match_result_strategy.h"
 
 #include <QDateTime>
@@ -34,21 +35,26 @@
 #include <QSet>
 #include <QStringList>
 #include <libcockatrice/protocol/pb/event_leave.pb.h>
+#include <libcockatrice/protocol/pb/event_tournament_state.pb.h>
 #include <libcockatrice/protocol/pb/response.pb.h>
 #include <libcockatrice/protocol/pb/serverinfo_game.pb.h>
 
 class QTimer;
+class DeckList;
 class GameEventContainer;
+class GameEventStorage;
 class GameReplay;
 class Server_Room;
 class Server_AbstractPlayer;
 class Server_AbstractParticipant;
+class Server_Card;
+class Server_Tournament;
 class ServerInfo_User;
 class ServerInfo_Game;
 class Server_AbstractUserInterface;
 class Event_GameStateChanged;
 
-class Server_Game : public QObject
+class Server_Game : public QObject, public Server_MatchGameFactory
 {
     Q_OBJECT
 private:
@@ -83,6 +89,14 @@ private:
     QList<GameReplay *> replayList;
     GameReplay *currentReplay;
 
+    bool isTournament;
+    TournamentSettings tournamentSettings;
+    Server_Tournament *tournament;
+    Server_Game *tournamentParentGame;
+    int tournamentMatchPlayer1Id;
+    int tournamentMatchPlayer2Id;
+    bool disconnectRemovesPlayer;
+
     QScopedPointer<Server_DeckValidationStrategy> deckValidationStrategy;
 
     QScopedPointer<Server_GameLifecycleStrategy> lifecycleStrategy;
@@ -220,6 +234,45 @@ public:
     void returnCardsFromPlayer(GameEventStorage &ges, Server_AbstractPlayer *player);
 
     /** @brief Get the current deck validation strategy (non-owning). */
+    bool getIsTournamentGame() const
+    {
+        return isTournament;
+    }
+    void setIsTournamentGame(bool _isTournament);
+    bool getIsTournament() const
+    {
+        return tournament != nullptr;
+    }
+    Server_Tournament *getTournament() const
+    {
+        return tournament;
+    }
+    void startTournament();
+    void setPlayerTournamentDeck(int playerId, DeckList *deck);
+    void setTournamentMatchInfo(Server_Game *parentGame, int p1Id, int p2Id);
+    Server_Game *getTournamentParentGame() const
+    {
+        return tournamentParentGame;
+    }
+    bool getDisconnectRemovesPlayer() const
+    {
+        return disconnectRemovesPlayer;
+    }
+
+    // Server_MatchGameFactory implementation
+    Server_Game *createMatchGame(const GameConfig &config, int &outGameId) override;
+    Server_AbstractUserInterface *getUserInterface(const QString &playerName) override;
+    void addGameToRoom(Server_Game *game) override;
+
+    const TournamentSettings &getTournamentSettings() const
+    {
+        return tournamentSettings;
+    }
+    void setTournamentSettings(const TournamentSettings &settings)
+    {
+        tournamentSettings = settings;
+    }
+
     Server_DeckValidationStrategy *getDeckValidationStrategy() const
     {
         return deckValidationStrategy.data();
@@ -232,6 +285,8 @@ public:
     {
         return lifecycleStrategy.data();
     }
+    /** @brief Replace the match result strategy; takes ownership of @p strategy. */
+    void setMatchResultStrategy(Server_MatchResultStrategy *strategy);
 };
 
 #endif

libcockatrice_network/libcockatrice/network/server/remote/game/server_tournament.cpp

@@ -0,0 +1,556 @@
+#include "server_tournament.h"
+
+#include "../server_abstractuserinterface.h"
+#include "../server_response_containers.h"
+#include "../serverinfo_user_container.h"
+#include "game_config.h"
+#include "server_abstract_player.h"
+#include "server_game.h"
+#include "server_match_game_factory.h"
+#include "server_player.h"
+#include "server_tournament_match_result_strategy.h"
+
+#include <QLoggingCategory>
+#include <algorithm>
+#include <libcockatrice/deck_list/deck_list.h>
+#include <libcockatrice/protocol/pb/event_tournament_state.pb.h>
+#include <libcockatrice/protocol/pb/game_event_container.pb.h>
+
+inline Q_LOGGING_CATEGORY(TournamentLog, "tournament");
+
+Server_Tournament::Server_Tournament(Server_Game *_parentGame, Server_MatchGameFactory *_factory, QObject *parent)
+    : QObject(parent), parentGame(_parentGame), matchGameFactory(_factory), currentRound(0), totalRounds(0),
+      started(false)
+{
+}
+
+Server_Tournament::~Server_Tournament()
+{
+    qDeleteAll(submittedDecks);
+}
+
+void Server_Tournament::addPlayer(int playerId, const QString &playerName)
+{
+    TournamentPlayerData data;
+    data.playerId = playerId;
+    data.playerName = playerName;
+    players[playerId] = data;
+}
+
+void Server_Tournament::setPlayerDeck(int playerId, DeckList *deck)
+{
+    QMutexLocker locker(&tournamentMutex);
+    delete submittedDecks.value(playerId, nullptr);
+    submittedDecks[playerId] = deck;
+    if (players.contains(playerId)) {
+        players[playerId].deckSubmitted = true;
+    }
+}
+
+void Server_Tournament::removePlayer(int playerId)
+{
+    QMutexLocker locker(&tournamentMutex);
+    players.remove(playerId);
+}
+
+void Server_Tournament::startTournament()
+{
+    {
+        QMutexLocker locker(&tournamentMutex);
+        if (started) {
+            return;
+        }
+        totalRounds = calculateTotalRounds();
+        started = true;
+        currentRound = 0;
+        generateSwissPairings();
+    }
+
+    // Spawn the first round's match games
+    enqueueMatchGameCreation();
+}
+
+bool Server_Tournament::isAllDecksSubmitted() const
+{
+    QMutexLocker locker(&tournamentMutex);
+    for (auto it = players.constBegin(); it != players.constEnd(); ++it) {
+        if (!it->deckSubmitted) {
+            return false;
+        }
+    }
+    return true;
+}
+
+int Server_Tournament::getTournamentPlayerIdByName(const QString &name) const
+{
+    QMutexLocker locker(&tournamentMutex);
+    for (auto it = players.constBegin(); it != players.constEnd(); ++it) {
+        if (it->playerName == name) {
+            return it->playerId;
+        }
+    }
+    return -1;
+}
+
+void Server_Tournament::generateSwissPairings()
+{
+    currentPairings.clear();
+    QList<int> available;
+    for (auto it = players.constBegin(); it != players.constEnd(); ++it) {
+        available.append(it->playerId);
+    }
+
+    // Sort by wins descending (and by record for tie-breaking)
+    std::sort(available.begin(), available.end(), [this](int a, int b) {
+        const auto &pa = players[a];
+        const auto &pb = players[b];
+        if (pa.wins != pb.wins) {
+            return pa.wins > pb.wins;
+        }
+        if (pa.losses != pb.losses) {
+            return pa.losses < pb.losses;
+        }
+        return a < b;
+    });
+
+    // Simple greedy Swiss pairing
+    QSet<int> paired;
+    for (int i = 0; i < available.size(); ++i) {
+        if (paired.contains(available[i])) {
+            continue;
+        }
+        for (int j = i + 1; j < available.size(); ++j) {
+            if (paired.contains(available[j])) {
+                continue;
+            }
+            if (!havePlayed(available[i], available[j])) {
+                TournamentPairingData pairing;
+                pairing.player1Id = available[i];
+                pairing.player2Id = available[j];
+                currentPairings.append(pairing);
+                paired.insert(available[i]);
+                paired.insert(available[j]);
+                break;
+            }
+        }
+    }
+
+    // Bye for unpaired player if odd count
+    for (int i = 0; i < available.size(); ++i) {
+        if (!paired.contains(available[i])) {
+            // Player gets a bye (auto-win)
+            TournamentPairingData bye;
+            bye.player1Id = available[i];
+            bye.player2Id = -1;
+            bye.winnerId = available[i];
+            bye.player1MatchWins = gamesPerMatch; // Match immediately decided
+            currentPairings.append(bye);
+            players[available[i]].wins += 1;
+            allPreviousPairings.append(qMakePair(available[i], -1));
+            break;
+        }
+    }
+}
+
+int Server_Tournament::calculateTotalRounds() const
+{
+    int n = players.size();
+    if (n <= 1) {
+        return 0;
+    }
+    // Standard Swiss rounds: ceil(log2(n))
+    int rounds = 0;
+    while ((1 << rounds) < n) {
+        ++rounds;
+    }
+    return rounds;
+}
+
+bool Server_Tournament::havePlayed(int p1, int p2) const
+{
+    for (const auto &pair : allPreviousPairings) {
+        if ((pair.first == p1 && pair.second == p2) || (pair.first == p2 && pair.second == p1)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+void Server_Tournament::advanceRound(GameEventStorage &ges)
+{
+    {
+        QMutexLocker locker(&tournamentMutex);
+        ++currentRound;
+        if (currentRound >= totalRounds) {
+            broadcastTournamentState(ges);
+            return;
+        }
+        generateSwissPairings();
+    }
+
+    enqueueMatchGameCreation();
+    broadcastTournamentState(ges);
+}
+
+bool Server_Tournament::allPairingsDecided() const
+{
+    for (const auto &pairing : currentPairings) {
+        if (pairing.winnerId == -2) {
+            return false;
+        }
+    }
+    return true;
+}
+
+void Server_Tournament::enqueueMatchGameCreation()
+{
+    QList<QPair<int, int>> planned;
+    {
+        QMutexLocker locker(&tournamentMutex);
+        for (const auto &pairing : currentPairings) {
+            if (pairing.player2Id != -1 && pairing.winnerId == -2 &&
+                pairing.matchGameIds.size() < static_cast<int>(gamesPerMatch)) {
+                planned.append(qMakePair(pairing.player1Id, pairing.player2Id));
+            }
+        }
+    }
+    if (planned.isEmpty()) {
+        return;
+    }
+
+    // Create the games from the event loop instead of the caller's stack: command
+    // processing holds game mutexes, and room registration takes gamesLock, so spawning
+    // synchronously would nest lock orders. The queued job runs once this object's
+    // owning thread returns to its event loop with no locks held; it is dropped if this
+    // tournament is destroyed first.
+    QMetaObject::invokeMethod(
+        this,
+        [this, planned] {
+            for (const auto &pair : planned) {
+                createMatchGame(pair.first, pair.second);
+            }
+
+            GameEventStorage ges;
+            broadcastTournamentState(ges);
+            ges.sendToGame(parentGame);
+        },
+        Qt::QueuedConnection);
+}
+
+void Server_Tournament::createMatchGame(int player1Id, int player2Id)
+{
+    if (!matchGameFactory || player2Id == -1) {
+        return;
+    }
+
+    QString player1Name;
+    QString player2Name;
+    QString deck1Native;
+    QString deck2Native;
+    int round = 0;
+    int gameNumber = 1;
+    {
+        QMutexLocker locker(&tournamentMutex);
+        player1Name = players.value(player1Id).playerName;
+        player2Name = players.value(player2Id).playerName;
+
+        if (submittedDecks.contains(player1Id)) {
+            deck1Native = submittedDecks.value(player1Id)->writeToString_Native();
+        }
+        if (submittedDecks.contains(player2Id)) {
+            deck2Native = submittedDecks.value(player2Id)->writeToString_Native();
+        }
+
+        round = currentRound;
+        for (const auto &pairing : currentPairings) {
+            if (pairing.player1Id == player1Id && pairing.player2Id == player2Id) {
+                gameNumber = pairing.matchGameIds.size() + 1;
+                break;
+            }
+        }
+
+        // Defense in depth: never exceed the configured series length
+        for (const auto &pairing : currentPairings) {
+            if (pairing.player1Id == player1Id && pairing.player2Id == player2Id &&
+                pairing.matchGameIds.size() >= static_cast<int>(gamesPerMatch)) {
+                qCWarning(TournamentLog) << "Refusing to exceed series length for pairing" << player1Id << player2Id;
+                return;
+            }
+        }
+    }
+
+    // Create a sub-game for this match via the factory
+    ServerInfo_User creatorInfo;
+    creatorInfo.set_name(player1Name.toStdString());
+    creatorInfo.set_user_level(ServerInfo_User::IsAdmin | ServerInfo_User::IsRegistered);
+
+    QString gameDesc = gamesPerMatch > 1
+                           ? QString("R%1 Match - Game %2 of %3").arg(round).arg(gameNumber).arg(gamesPerMatch)
+                           : QString("Tournament Round %1").arg(round);
+
+    GameConfig matchConfig;
+    matchConfig.creatorInfo = creatorInfo;
+    matchConfig.description = gameDesc;
+    matchConfig.maxPlayers = 2;
+    matchConfig.startingLifeTotal = parentGame->getStartingLifeTotal();
+
+    int matchGameId = -1;
+    auto *matchGame = matchGameFactory->createMatchGame(matchConfig, matchGameId);
+    if (!matchGame || matchGameId == -1) {
+        return;
+    }
+
+    matchGame->setTournamentMatchInfo(parentGame, player1Id, player2Id);
+    matchGame->setMatchResultStrategy(new Server_TournamentMatchResultStrategy);
+    matchGameFactory->addGameToRoom(matchGame);
+
+    // Store the game ID in the pairing
+    {
+        QMutexLocker locker(&tournamentMutex);
+        for (auto &pairing : currentPairings) {
+            if (pairing.player1Id == player1Id && pairing.player2Id == player2Id) {
+                pairing.gameId = matchGameId;
+                pairing.matchGameIds.append(matchGameId);
+                break;
+            }
+        }
+    }
+
+    // Auto-join both players, sending the join event directly through their UIs.
+    QMap<int, QPair<Server_AbstractUserInterface *, ResponseContainer *>> joiners;
+
+    auto joinAndSetupPlayer = [&](int pid, const QString &name) {
+        Server_AbstractUserInterface *ui = matchGameFactory->getUserInterface(name);
+        if (ui) {
+            auto *rc = new ResponseContainer(0);
+            matchGame->addPlayer(ui, *rc, false, false, false);
+            joiners[pid] = qMakePair(ui, rc);
+        }
+    };
+
+    joinAndSetupPlayer(player1Id, player1Name);
+    joinAndSetupPlayer(player2Id, player2Name);
+
+    // Now send the enqueued GameJoined + GameStateChanged events to each player's client.
+    for (auto it = joiners.constBegin(); it != joiners.constEnd(); ++it) {
+        it.value().first->sendResponseContainer(*it.value().second, Response::RespNothing);
+        delete it.value().second;
+    }
+    joiners.clear();
+
+    // Set decks and mark players as ready in the match game
+    auto matchPlayers = matchGame->getPlayers();
+    for (auto *matchPlayer : matchPlayers) {
+        const QString name = QString::fromStdString(matchPlayer->getUserInfo()->name());
+        QString deckNative;
+        if (name == player1Name) {
+            deckNative = deck1Native;
+        } else if (name == player2Name) {
+            deckNative = deck2Native;
+        }
+
+        if (!deckNative.isEmpty()) {
+            matchPlayer->setDeck(new DeckList(deckNative));
+            matchPlayer->setReadyStart(true);
+        }
+    }
+
+    // Start the match game
+    matchGame->startGameIfReady(true);
+}
+
+void Server_Tournament::recordMatchResult(int playerId1, int playerId2, int winnerId, GameEventStorage &ges)
+{
+    QMutexLocker locker(&tournamentMutex);
+
+    // Find the pairing and set the winner
+    for (auto &pairing : currentPairings) {
+        if ((pairing.player1Id == playerId1 && pairing.player2Id == playerId2) ||
+            (pairing.player1Id == playerId2 && pairing.player2Id == playerId1)) {
+            if (pairing.winnerId != -2) {
+                return; // Already recorded — defense in depth against double-call
+            }
+            pairing.winnerId = winnerId;
+            break;
+        }
+    }
+
+    // Update player records
+    if (winnerId == -1) {
+        // Draw
+        players[playerId1].draws += 1;
+        players[playerId2].draws += 1;
+    } else if (winnerId == playerId1) {
+        players[playerId1].wins += 1;
+        players[playerId2].losses += 1;
+    } else if (winnerId == playerId2) {
+        players[playerId2].wins += 1;
+        players[playerId1].losses += 1;
+    }
+
+    // Store for future pairing avoidance
+    allPreviousPairings.append(qMakePair(playerId1, playerId2));
+
+    // Check if all pairings in current round have results
+    bool allDecided = true;
+    for (const auto &pairing : currentPairings) {
+        if (pairing.winnerId == -2) {
+            allDecided = false;
+            break;
+        }
+    }
+
+    broadcastTournamentState(ges);
+
+    if (allDecided) {
+        advanceRound(ges);
+    }
+}
+
+bool Server_Tournament::recordMatchResultByGameId(int gameId, int winnerId, GameEventStorage &ges)
+{
+    bool matchDecided = false;
+    bool seriesContinues = false;
+    int p1 = -1;
+    int p2 = -1;
+    {
+        QMutexLocker locker(&tournamentMutex);
+
+        // Find the pairing that owns this game
+        TournamentPairingData *pairingPtr = nullptr;
+        for (auto &pairing : currentPairings) {
+            if (pairing.matchGameIds.contains(gameId)) {
+                pairingPtr = &pairing;
+                break;
+            }
+        }
+
+        if (!pairingPtr) {
+            return false;
+        }
+
+        // If the match is already decided, ignore further sub-game results
+        if (pairingPtr->winnerId != -2) {
+            return true;
+        }
+
+        // Increment per-match wins
+        if (winnerId == pairingPtr->player1Id) {
+            pairingPtr->player1MatchWins += 1;
+        } else if (winnerId == pairingPtr->player2Id) {
+            pairingPtr->player2MatchWins += 1;
+        }
+        // Draw (winnerId == -1): no match wins incremented
+
+        // Check if match is decided
+        const int gamesNeeded = static_cast<int>(gamesPerMatch);
+        matchDecided = (pairingPtr->player1MatchWins >= gamesNeeded) || (pairingPtr->player2MatchWins >= gamesNeeded);
+
+        if (matchDecided) {
+            // Determine match winner
+            int matchWinnerId;
+            if (pairingPtr->player1MatchWins >= gamesNeeded) {
+                matchWinnerId = pairingPtr->player1Id;
+            } else {
+                matchWinnerId = pairingPtr->player2Id;
+            }
+
+            // Set the match winner on the pairing
+            pairingPtr->winnerId = matchWinnerId;
+
+            // Update tournament-level player records
+            if (matchWinnerId == pairingPtr->player1Id) {
+                players[pairingPtr->player1Id].wins += 1;
+                players[pairingPtr->player2Id].losses += 1;
+            } else {
+                players[pairingPtr->player2Id].wins += 1;
+                players[pairingPtr->player1Id].losses += 1;
+            }
+
+            // Store for future pairing avoidance
+            allPreviousPairings.append(qMakePair(pairingPtr->player1Id, pairingPtr->player2Id));
+        } else {
+            // Match not decided — spawn the next sub-game outside all locks
+            seriesContinues = true;
+            p1 = pairingPtr->player1Id;
+            p2 = pairingPtr->player2Id;
+        }
+
+        broadcastTournamentState(ges);
+    }
+
+    if (seriesContinues) {
+        QMetaObject::invokeMethod(
+            this,
+            [this, p1, p2] {
+                createMatchGame(p1, p2);
+
+                GameEventStorage nextGes;
+                broadcastTournamentState(nextGes);
+                nextGes.sendToGame(parentGame);
+            },
+            Qt::QueuedConnection);
+    }
+
+    checkAndAdvanceRound(ges);
+
+    return matchDecided;
+}
+
+void Server_Tournament::checkAndAdvanceRound(GameEventStorage &ges)
+{
+    bool roundComplete = false;
+    {
+        QMutexLocker locker(&tournamentMutex);
+        roundComplete = allPairingsDecided();
+    }
+
+    if (roundComplete) {
+        advanceRound(ges);
+    }
+}
+
+void Server_Tournament::broadcastTournamentState(GameEventStorage &ges)
+{
+    QMutexLocker locker(&tournamentMutex);
+
+    Event_TournamentState state;
+
+    if (started && currentRound >= totalRounds) {
+        state.set_phase(Event_TournamentState::PHASE_FINISHED);
+    } else if (started) {
+        state.set_phase(Event_TournamentState::PHASE_PLAYING);
+    } else {
+        state.set_phase(Event_TournamentState::PHASE_DECK_BUILDING);
+    }
+
+    state.set_current_round(currentRound);
+    state.set_total_rounds(totalRounds);
+
+    // Settings
+    TournamentSettings *settings = state.mutable_settings();
+    settings->set_games_per_match(gamesPerMatch);
+
+    for (auto it = players.constBegin(); it != players.constEnd(); ++it) {
+        TournamentPlayer *p = state.add_players();
+        p->set_player_id(it->playerId);
+        p->set_player_name(it->playerName.toStdString());
+        p->set_wins(it->wins);
+        p->set_losses(it->losses);
+        p->set_draws(it->draws);
+        p->set_deck_submitted(it->deckSubmitted);
+    }
+
+    for (const auto &pairing : currentPairings) {
+        TournamentPairing *p = state.add_pairings();
+        p->set_player1_id(pairing.player1Id);
+        p->set_player2_id(pairing.player2Id);
+        p->set_game_id(pairing.gameId);
+        // Map internal sentinel: -2 (undecided) -> -1 (no winner yet in proto)
+        p->set_winner_id(pairing.winnerId == -2 ? -1 : pairing.winnerId);
+        p->set_player1_match_wins(pairing.player1MatchWins);
+        p->set_player2_match_wins(pairing.player2MatchWins);
+    }
+
+    ges.enqueueGameEvent(state, -1);
+}

libcockatrice_network/libcockatrice/network/server/remote/game/server_tournament.h

@@ -0,0 +1,106 @@
+#ifndef SERVER_TOURNAMENT_H
+#define SERVER_TOURNAMENT_H
+
+#include <QList>
+#include <QMap>
+#include <QObject>
+#include <QRecursiveMutex>
+#include <QSet>
+#include <libcockatrice/protocol/pb/event_tournament_state.pb.h>
+
+class DeckList;
+class Server_Game;
+class Server_MatchGameFactory;
+class Server_AbstractParticipant;
+class Server_AbstractUserInterface;
+class GameEventStorage;
+
+/** @brief Maximum number of games per match a tournament can be configured with. */
+constexpr int MAX_GAMES_PER_MATCH = 5;
+
+class Server_Tournament : public QObject
+{
+    Q_OBJECT
+public:
+    explicit Server_Tournament(Server_Game *_parentGame, Server_MatchGameFactory *_factory, QObject *parent = nullptr);
+    ~Server_Tournament() override;
+
+    void addPlayer(int playerId, const QString &playerName);
+    void removePlayer(int playerId);
+    void startTournament();
+    void advanceRound(GameEventStorage &ges);
+    void recordMatchResult(int playerId1, int playerId2, int winnerId, GameEventStorage &ges);
+    bool recordMatchResultByGameId(int gameId, int winnerId, GameEventStorage &ges);
+    void broadcastTournamentState(GameEventStorage &ges);
+
+    bool isStarted() const
+    {
+        return started;
+    }
+    bool isAllDecksSubmitted() const;
+    int getPlayerCount() const
+    {
+        return players.size();
+    }
+    int getTournamentPlayerIdByName(const QString &name) const;
+    void setPlayerDeckSubmitted(int playerId)
+    {
+        if (players.contains(playerId)) {
+            players[playerId].deckSubmitted = true;
+        }
+    }
+    void setPlayerDeck(int playerId, DeckList *deck);
+
+    void setGamesPerMatch(uint32_t n)
+    {
+        gamesPerMatch = n;
+    }
+    uint32_t getGamesPerMatch() const
+    {
+        return gamesPerMatch;
+    }
+
+    struct TournamentPlayerData
+    {
+        int playerId;
+        QString playerName;
+        int wins = 0;
+        int losses = 0;
+        int draws = 0;
+        bool deckSubmitted = false;
+    };
+
+    struct TournamentPairingData
+    {
+        int player1Id;
+        int player2Id;
+        int gameId = -1;
+        int winnerId = -2; // -2 = undecided, -1 = draw, >= 0 = winner player id
+        int player1MatchWins = 0;
+        int player2MatchWins = 0;
+        QList<int> matchGameIds;
+    };
+
+private:
+    Server_Game *parentGame;
+    Server_MatchGameFactory *matchGameFactory;
+    mutable QRecursiveMutex tournamentMutex;
+    QMap<int, TournamentPlayerData> players;
+    QMap<int, DeckList *> submittedDecks;
+    QList<TournamentPairingData> currentPairings;
+    QList<QPair<int, int>> allPreviousPairings;
+    int currentRound;
+    int totalRounds;
+    bool started;
+    uint32_t gamesPerMatch = 1;
+
+    void generateSwissPairings();
+    int calculateTotalRounds() const;
+    bool havePlayed(int p1, int p2) const;
+    bool allPairingsDecided() const;
+    void createMatchGame(int player1Id, int player2Id);
+    void enqueueMatchGameCreation();
+    void checkAndAdvanceRound(GameEventStorage &ges);
+};
+
+#endif // SERVER_TOURNAMENT_H

libcockatrice_network/libcockatrice/network/server/remote/game/server_tournament_lifecycle_strategy.cpp

@@ -0,0 +1,33 @@
+#include "server_tournament_lifecycle_strategy.h"
+
+#include "server_abstract_player.h"
+#include "server_game.h"
+
+#include <QLoggingCategory>
+
+inline Q_LOGGING_CATEGORY(TournamentLifecycleLog, "tournament_lifecycle");
+
+Server_GameLifecycleStrategy::StartAction Server_TournamentLifecycleStrategy::onGameStarting(Server_Game *game)
+{
+    // Match sub-games start through the normal flow; only the tournament hub game is
+    // managed by this lifecycle.
+    if (game->getTournamentParentGame() != nullptr) {
+        return StartAction::ProceedNormal;
+    }
+
+    for (auto *player : game->getPlayers().values()) {
+        if (!player->getDeckList()) {
+            qCWarning(TournamentLifecycleLog)
+                << "Tournament cannot start: player" << player->getUserInfo()->name().c_str() << "has no deck";
+            return StartAction::Handled;
+        }
+    }
+
+    if (!game->getIsTournamentGame()) {
+        qCWarning(TournamentLifecycleLog) << "Tournament lifecycle used for non-tournament game — falling back";
+        return StartAction::ProceedNormal;
+    }
+
+    game->startTournament();
+    return StartAction::Handled;
+}

libcockatrice_network/libcockatrice/network/server/remote/game/server_tournament_lifecycle_strategy.h

@@ -0,0 +1,12 @@
+#ifndef SERVER_TOURNAMENT_LIFECYCLE_STRATEGY_H
+#define SERVER_TOURNAMENT_LIFECYCLE_STRATEGY_H
+
+#include "server_game_lifecycle_strategy.h"
+
+class Server_TournamentLifecycleStrategy : public Server_GameLifecycleStrategy
+{
+public:
+    StartAction onGameStarting(Server_Game *game) override;
+};
+
+#endif

libcockatrice_network/libcockatrice/network/server/remote/game/server_tournament_match_result_strategy.cpp

@@ -0,0 +1,34 @@
+#include "server_tournament_match_result_strategy.h"
+
+#include "../server_response_containers.h"
+#include "server_abstract_player.h"
+#include "server_game.h"
+#include "server_tournament.h"
+
+#include <libcockatrice/protocol/pb/event_game_closed.pb.h>
+#include <libcockatrice/protocol/pb/event_tournament_state.pb.h>
+
+bool Server_TournamentMatchResultStrategy::onGameFinished(Server_Game *game,
+                                                          int playing,
+                                                          Server_AbstractPlayer *lastPlayer)
+{
+    auto *parentGame = game->getTournamentParentGame();
+    if (!parentGame || !parentGame->getTournament()) {
+        return false;
+    }
+
+    int winnerId;
+    if (playing == 0) {
+        winnerId = -1;
+    } else {
+        QString winnerName = QString::fromStdString(lastPlayer->getUserInfo()->name());
+        auto *tournament = parentGame->getTournament();
+        winnerId = tournament->getTournamentPlayerIdByName(winnerName);
+    }
+
+    GameEventStorage parentGes;
+    bool matchDecided = parentGame->getTournament()->recordMatchResultByGameId(game->getGameId(), winnerId, parentGes);
+    parentGes.sendToGame(parentGame);
+
+    return matchDecided;
+}

libcockatrice_network/libcockatrice/network/server/remote/game/server_tournament_match_result_strategy.h

@@ -0,0 +1,12 @@
+#ifndef SERVER_TOURNAMENT_MATCH_RESULT_STRATEGY_H
+#define SERVER_TOURNAMENT_MATCH_RESULT_STRATEGY_H
+
+#include "server_match_result_strategy.h"
+
+class Server_TournamentMatchResultStrategy : public Server_MatchResultStrategy
+{
+public:
+    bool onGameFinished(Server_Game *game, int playing, Server_AbstractPlayer *lastPlayer) override;
+};
+
+#endif

libcockatrice_network/libcockatrice/network/server/remote/server_protocolhandler.cpp

@@ -3,6 +3,7 @@
 #include "game/game_config.h"
 #include "game/server_game.h"
 #include "game/server_player.h"
+#include "game/server_tournament.h"
 #include "server_database_interface.h"
 #include "server_room.h"
 
@@ -916,6 +917,8 @@ Server_ProtocolHandler::cmdCreateGame(const Command_CreateGame &cmd, Server_Room
     int startingLifeTotal = cmd.has_starting_life_total() ? cmd.starting_life_total() : 20;
 
     bool shareDecklistsOnLoad = cmd.has_share_decklists_on_load() ? cmd.share_decklists_on_load() : false;
+    bool isTournament = cmd.has_is_tournament() ? cmd.is_tournament() : false;
+    int gamesPerMatch = cmd.has_games_per_match() ? static_cast<int>(cmd.games_per_match()) : 1;
 
     const int gameId = databaseInterface->getNextGameId();
     if (gameId == -1) {
@@ -940,6 +943,10 @@ Server_ProtocolHandler::cmdCreateGame(const Command_CreateGame &cmd, Server_Room
                       .shareDecklistsOnLoad = shareDecklistsOnLoad};
 
     auto *game = new Server_Game(config, room);
+    game->setIsTournamentGame(isTournament);
+    if (isTournament && game->getTournament()) {
+        game->getTournament()->setGamesPerMatch(static_cast<uint32_t>(qBound(1, gamesPerMatch, MAX_GAMES_PER_MATCH)));
+    }
 
     game->addPlayer(this, rc, asSpectator, asJudge, false);
     room->addGame(game);

libcockatrice_network/libcockatrice/network/server/remote/server_room.cpp

@@ -363,6 +363,18 @@ void Server_Room::broadcastGameListUpdate(const ServerInfo_Game &gameInfo, bool
     sendRoomEvent(prepareRoomEvent(event), sendToIsl);
 }
 
+Server_AbstractUserInterface *Server_Room::getUserInterfaceByName(const QString &name) const
+{
+    usersLock.lockForRead();
+    auto it = users.constFind(name);
+    Server_AbstractUserInterface *result = nullptr;
+    if (it != users.constEnd()) {
+        result = it.value();
+    }
+    usersLock.unlock();
+    return result;
+}
+
 void Server_Room::addGame(Server_Game *game)
 {
     ServerInfo_Room roomInfo;

libcockatrice_network/libcockatrice/network/server/remote/server_room.h

@@ -135,6 +135,8 @@ public:
     void addGame(Server_Game *game);
     void removeGame(Server_Game *game);
 
+    Server_AbstractUserInterface *getUserInterfaceByName(const QString &name) const;
+
     void sendRoomEvent(RoomEvent *event, bool sendToIsl = true);
     RoomEvent *prepareRoomEvent(const ::google::protobuf::Message &roomEvent);
 };

libcockatrice_protocol/libcockatrice/protocol/pb/CMakeLists.txt

@@ -60,6 +60,7 @@ set(PROTO_FILES
     command_set_sideboard_lock.proto
     command_set_sideboard_plan.proto
     command_shuffle.proto
+    command_tournament.proto
     command_undo_draw.proto
     commands.proto
     context_concede.proto
@@ -118,6 +119,7 @@ set(PROTO_FILES
     event_set_card_counter.proto
     event_set_counter.proto
     event_shuffle.proto
+    event_tournament_state.proto
     event_user_joined.proto
     event_user_left.proto
     event_user_message.proto

libcockatrice_protocol/libcockatrice/protocol/pb/command_tournament.proto

@@ -0,0 +1,26 @@
+syntax = "proto2";
+import "game_commands.proto";
+import "event_tournament_state.proto";
+
+message Command_ReportMatchResult {
+    extend GameCommand {
+        optional Command_ReportMatchResult ext = 1037;
+    }
+
+    optional sint32 game_id = 1 [default = -1];
+    optional sint32 winner_id = 2 [default = -1];
+}
+
+message Command_AdvanceTournament {
+    extend GameCommand {
+        optional Command_AdvanceTournament ext = 1038;
+    }
+}
+
+message Command_TournamentSettingsSelect {
+    extend GameCommand {
+        optional Command_TournamentSettingsSelect ext = 1039;
+    }
+
+    optional TournamentSettings settings = 1;
+}

libcockatrice_protocol/libcockatrice/protocol/pb/event_game_state_changed.proto

@@ -24,4 +24,10 @@ message Event_GameStateChanged {
 
     // the amount of seconds since the game started
     optional uint32 seconds_elapsed = 5;
+
+    // whether this game is a tournament game
+    optional bool is_tournament = 9;
+
+    // for tournament sub-games: the ID of the parent tournament game (-1 if not a sub-game)
+    optional sint32 parent_game_id = 10 [default = -1];
 }

libcockatrice_protocol/libcockatrice/protocol/pb/event_tournament_state.proto

@@ -0,0 +1,43 @@
+syntax = "proto2";
+import "game_event.proto";
+
+message TournamentPlayer {
+    optional sint32 player_id = 1;
+    optional string player_name = 2;
+    optional uint32 wins = 3;
+    optional uint32 losses = 4;
+    optional uint32 draws = 5;
+    optional bool deck_submitted = 6;
+}
+
+message TournamentPairing {
+    optional sint32 player1_id = 1;
+    optional sint32 player2_id = 2 [default = -1];
+    optional sint32 game_id = 3;
+    optional sint32 winner_id = 4 [default = -1];
+    optional sint32 player1_match_wins = 5 [default = 0];
+    optional sint32 player2_match_wins = 6 [default = 0];
+}
+
+message TournamentSettings {
+    optional uint32 games_per_match = 1 [default = 1];
+}
+
+message Event_TournamentState {
+    extend GameEvent {
+        optional Event_TournamentState ext = 2027;
+    }
+
+    enum TournamentPhase {
+        PHASE_DECK_BUILDING = 0;
+        PHASE_PLAYING = 1;
+        PHASE_FINISHED = 2;
+    }
+
+    optional TournamentPhase phase = 1;
+    optional uint32 current_round = 2;
+    optional uint32 total_rounds = 3;
+    repeated TournamentPlayer players = 4;
+    repeated TournamentPairing pairings = 5;
+    optional TournamentSettings settings = 6;
+}

libcockatrice_protocol/libcockatrice/protocol/pb/game_commands.proto

@@ -180,6 +180,15 @@ message GameCommand {
         /// Server: Server_Player::cmdSetPlaymat
         /// Client: reflected via player properties changed event
         SET_PLAYMAT = 1035;
+
+        /// Report the result of a tournament match sub-game.
+        REPORT_MATCH_RESULT = 1037;
+
+        /// Advance the tournament to the next round.
+        ADVANCE_TOURNAMENT = 1038;
+
+        /// Select tournament settings.
+        TOURNAMENT_SETTINGS_SELECT = 1039;
     }
 
     extensions 100 to max;

libcockatrice_protocol/libcockatrice/protocol/pb/game_event.proto

@@ -34,6 +34,7 @@ message GameEvent {
         CHANGE_ZONE_PROPERTIES = 2020;
         REVERSE_TURN = 2021;
         GAME_LOG_NOTICE = 2022;
+        TOURNAMENT_STATE = 2027;
     }
     optional sint32 player_id = 1 [default = -1];
     extensions 100 to max;

libcockatrice_protocol/libcockatrice/protocol/pb/room_commands.proto

@@ -69,6 +69,12 @@ message Command_CreateGame {
 
     // share decklists with all players when selected
     optional bool share_decklists_on_load = 14;
+
+    // number of games per match in tournament mode (e.g. 3 for best of 3)
+    optional uint32 games_per_match = 15 [default = 1];
+
+    // whether this is a tournament game
+    optional bool is_tournament = 16;
 }
 
 message Command_JoinGame {

libcockatrice_protocol/libcockatrice/protocol/pb/serverinfo_game.proto

@@ -65,4 +65,7 @@ message ServerInfo_Game {
 
     // the current host of the game, which may differ from the creator after a host transfer
     optional ServerInfo_User host_info = 53;
+
+    // whether this game is a tournament game
+    optional bool is_tournament = 54;
 }