wip

apps/website/lib/leagueMembership.ts

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+'use client';
+
+import type {
+  LeagueMembership as DomainLeagueMembership,
+  MembershipRole,
+  MembershipStatus,
+} from '@gridpilot/racing/domain/entities/LeagueMembership';
+import { leagues, memberships as seedMemberships } from '@gridpilot/testing-support';
+
+/**
+ * Lightweight league membership model mirroring the domain type but with
+ * a stringified joinedAt for easier UI formatting.
+ */
+export interface LeagueMembership extends Omit<DomainLeagueMembership, 'joinedAt'> {
+  joinedAt: string;
+}
+
+const leagueMemberships = new Map<string, LeagueMembership[]>();
+
+/**
+ * Initialize league memberships once from static seed data.
+ *
+ * - All seeded memberships become active members.
+ * - League owners are guaranteed to have an owner membership.
+ */
+(function initializeLeagueMembershipsFromSeed() {
+  if (leagueMemberships.size > 0) {
+    return;
+  }
+
+  const byLeague = new Map<string, LeagueMembership[]>();
+
+  for (const membership of seedMemberships) {
+    const list = byLeague.get(membership.leagueId) ?? [];
+    const joinedAt = new Date().toISOString();
+
+    list.push({
+      leagueId: membership.leagueId,
+      driverId: membership.driverId,
+      role: 'member',
+      status: 'active',
+      joinedAt,
+    });
+
+    byLeague.set(membership.leagueId, list);
+  }
+
+  for (const league of leagues) {
+    const list = byLeague.get(league.id) ?? [];
+    const existingOwner = list.find((m) => m.driverId === league.ownerId);
+
+    if (existingOwner) {
+      existingOwner.role = 'owner';
+    } else {
+      const joinedAt = new Date().toISOString();
+      list.unshift({
+        leagueId: league.id,
+        driverId: league.ownerId,
+        role: 'owner',
+        status: 'active',
+        joinedAt,
+      });
+    }
+
+    byLeague.set(league.id, list);
+  }
+
+  for (const [leagueId, list] of byLeague.entries()) {
+    leagueMemberships.set(leagueId, list);
+  }
+})();
+
+export function getMembership(leagueId: string, driverId: string): LeagueMembership | null {
+  const list = leagueMemberships.get(leagueId);
+  if (!list) return null;
+  return list.find((m) => m.driverId === driverId) ?? null;
+}
+
+export function getLeagueMembers(leagueId: string): LeagueMembership[] {
+  return [...(leagueMemberships.get(leagueId) ?? [])];
+}
+
+export function isOwnerOrAdmin(leagueId: string, driverId: string): boolean {
+  const membership = getMembership(leagueId, driverId);
+  if (!membership) return false;
+  return membership.role === 'owner' || membership.role === 'admin';
+}
+
+export type { MembershipRole, MembershipStatus };