Add player moderation workflows and game integration

src/lib/moderation.ts

@@ -1,3 +1,5 @@
+import { moderatorMaximumRestrictionMs, type AuthUser } from './auth.js';
+
 export type ModerationGame = 't5' | 't6';
 export type ModerationScope = 'server' | 'game' | 'fleet';
 export type ModerationActionKind = 'warn' | 'message' | 'kick' | 'announce';
@@ -9,8 +11,8 @@ export interface ModerationPlayer {
     guid: string;
     name: string;
     aliases: string[];
-    firstSeen: string;
-    lastSeen: string;
+    firstSeen: string | null;
+    lastSeen: string | null;
     servers: string[];
     restrictions: number;
 }
@@ -31,6 +33,23 @@ export interface ModerationSanction {
     revision: number;
     active: boolean;
 }
+
+export function canRevokeModerationRestriction(
+    actor: Pick<AuthUser, 'id' | 'role'> | null | undefined,
+    restriction: Pick<ModerationSanction, 'actorId' | 'scope' | 'createdAt' | 'expiresAt'>
+): boolean {
+    if (actor?.role === 'admin') return true;
+    if (
+        actor?.role !== 'moderator' ||
+        actor.id !== restriction.actorId ||
+        (restriction.scope !== 'server' && restriction.scope !== 'game') ||
+        !restriction.expiresAt
+    )
+        return false;
+    const duration = Date.parse(restriction.expiresAt) - Date.parse(restriction.createdAt);
+    return duration > 0 && duration <= moderatorMaximumRestrictionMs;
+}
+
 export interface ModerationAction {
     id: string;
     game: ModerationGame;