feat(admin): add game lifecycle controls

src/test/java/games/dmg/spigottyrant/GameLifecycleServiceTest.java

@@ -0,0 +1,65 @@
+package games.dmg.spigottyrant;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+
+final class GameLifecycleServiceTest {
+    private static final UUID TYRANT = UUID.fromString("11111111-1111-1111-1111-111111111111");
+    private static final UUID VIGILANTE = UUID.fromString("22222222-2222-2222-2222-222222222222");
+    private static final Instant START = Instant.parse("2026-08-14T12:00:00Z");
+    private final GameLifecycleService service = new GameLifecycleService();
+
+    @Test
+    void startsFirstGameWithInitialRolesAndChoice() {
+        LifecycleState started = service.start(
+            PersistentState.empty(), TYRANT, Optional.of(VIGILANTE), START
+        );
+
+        assertEquals(GameLifecycle.RUNNING, started.game().lifecycle());
+        assertEquals(Optional.of(TYRANT), started.game().tyrantId());
+        assertEquals(Optional.of(VIGILANTE), started.game().vigilanteId());
+        assertEquals(1, started.game().unspentChoices());
+    }
+
+    @Test
+    void pauseAndResumePreserveStateAndShiftEveryElapsedDeadline() {
+        Instant cooldown = START.plusSeconds(600);
+        PlayerState player = new PlayerState(
+            TYRANT, "Tyrant", Optional.of(START.minusSeconds(60)),
+            Optional.of(START.plusSeconds(1200)), TyrantClass.ASSASSIN,
+            Optional.empty(), Map.of(Ability.ASSASSIN_INVISIBILITY, cooldown),
+            Set.of(), java.util.List.of()
+        );
+        GameState running = new GameState(
+            GameLifecycle.RUNNING, Optional.of(TYRANT), Optional.of(VIGILANTE),
+            Optional.empty(), Optional.of(new PendingSelection(VIGILANTE, cooldown)),
+            Optional.empty(), Duration.ofMinutes(2), 2, 1,
+            Set.of(TyrantUnlock.ASSASSIN)
+        );
+        LifecycleState paused = service.pause(
+            new PersistentState(running, Map.of(TYRANT, player)), START
+        );
+        Instant resumedAt = START.plusSeconds(300);
+
+        LifecycleState resumed = service.resume(paused.asPersistentState(), resumedAt);
+
+        assertEquals(GameLifecycle.RUNNING, resumed.game().lifecycle());
+        assertEquals(Duration.ofMinutes(7), resumed.game().accumulatedPausedTime());
+        assertEquals(cooldown.plusSeconds(300),
+            resumed.game().pendingVigilante().orElseThrow().expiresAt());
+        PlayerState shifted = resumed.players().get(TYRANT);
+        assertEquals(cooldown.plusSeconds(300),
+            shifted.cooldownEnds().get(Ability.ASSASSIN_INVISIBILITY));
+        assertEquals(START.plusSeconds(1500), shifted.optedOutUntil().orElseThrow());
+        assertEquals(START.plusSeconds(240), shifted.lastLogin().orElseThrow());
+        assertTrue(shifted.tyrantClass() == TyrantClass.ASSASSIN);
+    }
+}

src/test/java/games/dmg/spigottyrant/PluginMetadataTest.java

@@ -23,6 +23,11 @@ final class PluginMetadataTest {
         Map<?, ?> commands = (Map<?, ?>) plugin.get("commands");
         assertNotNull(commands);
         assertNotNull(commands.get("tyrant"));
+        assertNotNull(commands.get("tyrantadmin"));
+        Map<?, ?> permissions = (Map<?, ?>) plugin.get("permissions");
+        assertNotNull(permissions);
+        Map<?, ?> admin = (Map<?, ?>) permissions.get("spigottyrant.admin");
+        assertEquals("op", admin.get("default"));
     }
 
     @Test

src/test/java/games/dmg/spigottyrant/RoleCandidateSelectorTest.java

@@ -0,0 +1,46 @@
+package games.dmg.spigottyrant;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import java.util.random.RandomGenerator;
+import org.junit.jupiter.api.Test;
+
+final class RoleCandidateSelectorTest {
+    @Test
+    void selectsOnlyRecentlyActiveEligibleNonExcludedPlayer() {
+        Instant now = Instant.parse("2026-08-14T12:00:00Z");
+        UUID tyrant = UUID.fromString("11111111-1111-1111-1111-111111111111");
+        UUID candidate = UUID.fromString("22222222-2222-2222-2222-222222222222");
+        UUID stale = UUID.fromString("33333333-3333-3333-3333-333333333333");
+        Map<UUID, PlayerState> players = Map.of(
+            tyrant, withLogin(PlayerState.newPlayer(tyrant, "Tyrant"), now),
+            candidate, withLogin(PlayerState.newPlayer(candidate, "Candidate"), now.minusSeconds(60)),
+            stale, withLogin(PlayerState.newPlayer(stale, "Stale"), now.minus(Duration.ofHours(25)))
+        );
+
+        Optional<UUID> selected = new RoleCandidateSelector().select(
+            players,
+            Set.of(tyrant),
+            Optional.empty(),
+            now,
+            Duration.ofHours(24),
+            RandomGenerator.of("L64X128MixRandom")
+        );
+
+        assertEquals(Optional.of(candidate), selected);
+    }
+
+    private static PlayerState withLogin(PlayerState player, Instant login) {
+        return new PlayerState(
+            player.playerId(), player.latestName(), Optional.of(login), player.optedOutUntil(),
+            player.tyrantClass(), player.followerOf(), player.cooldownEnds(),
+            player.readyAbilityItems(), player.capturedMobs()
+        );
+    }
+}

src/test/java/games/dmg/spigottyrant/TyrantAdminCommandTest.java

@@ -0,0 +1,87 @@
+package games.dmg.spigottyrant;
+
+import static org.mockito.ArgumentMatchers.contains;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.ZoneOffset;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.junit.jupiter.api.Test;
+
+final class TyrantAdminCommandTest {
+    @Test
+    void rejectsSenderWithoutAdminPermission() {
+        TyrantStateManager manager = mock(TyrantStateManager.class);
+        CommandSender sender = mock(CommandSender.class);
+        when(sender.hasPermission("spigottyrant.admin")).thenReturn(false);
+        TyrantAdminCommand command = command(manager, mock(ManagedRoleEffects.class));
+
+        command.onCommand(sender, mock(Command.class), "tyrantadmin", new String[] {"pause"});
+
+        verify(sender).sendMessage(contains("permission"));
+        verify(manager, never()).replaceState(org.mockito.ArgumentMatchers.any());
+    }
+
+    @Test
+    void pausePreservesStateAndSuppressesManagedEffects() {
+        UUID tyrant = UUID.fromString("11111111-1111-1111-1111-111111111111");
+        GameState game = new GameState(
+            GameLifecycle.RUNNING, Optional.of(tyrant), Optional.empty(),
+            Optional.empty(), Optional.empty(), Optional.empty(), Duration.ZERO,
+            2, 1, Set.of(TyrantUnlock.STRENGTH)
+        );
+        PersistentState snapshot = new PersistentState(
+            game, Map.of(tyrant, PlayerState.newPlayer(tyrant, "Tyrant"))
+        );
+        TyrantStateManager manager = mock(TyrantStateManager.class);
+        when(manager.snapshot()).thenReturn(snapshot);
+        ManagedRoleEffects effects = mock(ManagedRoleEffects.class);
+        CommandSender sender = mock(CommandSender.class);
+        when(sender.hasPermission("spigottyrant.admin")).thenReturn(true);
+        TyrantAdminCommand command = command(manager, effects);
+
+        command.onCommand(sender, mock(Command.class), "tyrantadmin", new String[] {"pause"});
+
+        verify(manager).replaceState(org.mockito.ArgumentMatchers.argThat(
+            state -> state.game().lifecycle() == GameLifecycle.PAUSED
+                && state.game().tyrantLevel() == 2
+        ));
+        verify(effects).suppressAll();
+    }
+
+    @Test
+    void resetRequiresExplicitConfirmation() {
+        TyrantStateManager manager = mock(TyrantStateManager.class);
+        CommandSender sender = mock(CommandSender.class);
+        when(sender.hasPermission("spigottyrant.admin")).thenReturn(true);
+        TyrantAdminCommand command = command(manager, mock(ManagedRoleEffects.class));
+
+        command.onCommand(sender, mock(Command.class), "tyrantadmin", new String[] {"reset"});
+
+        verify(sender).sendMessage(contains("reset confirm"));
+        verify(manager, never()).replaceState(org.mockito.ArgumentMatchers.any());
+    }
+
+    private static TyrantAdminCommand command(
+        TyrantStateManager manager,
+        ManagedRoleEffects effects
+    ) {
+        return new TyrantAdminCommand(
+            manager,
+            new GameLifecycleService(),
+            mock(OnlinePlayerDirectory.class),
+            effects,
+            Clock.fixed(Instant.parse("2026-08-14T12:00:00Z"), ZoneOffset.UTC)
+        );
+    }
+}