wip

packages/testing-support/src/faker/faker.ts

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+import { faker as baseFaker } from '@faker-js/faker';
+
+const faker = baseFaker;
+
+// Fixed seed so demo data is stable across builds
+faker.seed(20240317);
+
+export { faker };

packages/testing-support/src/images/images.ts

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+const DRIVER_AVATARS = [
+  '/images/avatars/avatar-1.svg',
+  '/images/avatars/avatar-2.svg',
+  '/images/avatars/avatar-3.svg',
+  '/images/avatars/avatar-4.svg',
+  '/images/avatars/avatar-5.svg',
+  '/images/avatars/avatar-6.svg',
+] as const;
+
+const TEAM_LOGOS = [
+  '/images/logos/team-1.svg',
+  '/images/logos/team-2.svg',
+  '/images/logos/team-3.svg',
+  '/images/logos/team-4.svg',
+] as const;
+
+const LEAGUE_BANNERS = [
+  '/images/header.jpeg',
+  '/images/ff1600.jpeg',
+  '/images/lmp3.jpeg',
+  '/images/porsche.jpeg',
+] as const;
+
+function hashString(input: string): number {
+  let hash = 0;
+  for (let i = 0; i < input.length; i += 1) {
+    hash = (hash * 31 + input.charCodeAt(i)) | 0;
+  }
+  return Math.abs(hash);
+}
+
+export function getDriverAvatar(driverId: string): string {
+  const index = hashString(driverId) % DRIVER_AVATARS.length;
+  return DRIVER_AVATARS[index];
+}
+
+export function getTeamLogo(teamId: string): string {
+  const index = hashString(teamId) % TEAM_LOGOS.length;
+  return TEAM_LOGOS[index];
+}
+
+export function getLeagueBanner(leagueId: string): string {
+  const index = hashString(leagueId) % LEAGUE_BANNERS.length;
+  return LEAGUE_BANNERS[index];
+}
+
+export { DRIVER_AVATARS, TEAM_LOGOS, LEAGUE_BANNERS };

packages/testing-support/src/racing/StaticRacingSeed.ts

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+import { Driver } from '@gridpilot/racing/domain/entities/Driver';
+import { League } from '@gridpilot/racing/domain/entities/League';
+import { Race } from '@gridpilot/racing/domain/entities/Race';
+import { Result } from '@gridpilot/racing/domain/entities/Result';
+import { Standing } from '@gridpilot/racing/domain/entities/Standing';
+
+import type { FeedItem } from '@gridpilot/social/domain/entities/FeedItem';
+import type { FriendDTO } from '@gridpilot/social/application/dto/FriendDTO';
+import { faker } from '@gridpilot/testing-support';
+import { getTeamLogo, getLeagueBanner, getDriverAvatar } from '@gridpilot/testing-support';
+
+export type RacingMembership = {
+  driverId: string;
+  leagueId: string;
+  teamId?: string;
+};
+
+export type Friendship = {
+  driverId: string;
+  friendId: string;
+};
+
+export interface DemoTeamDTO {
+  id: string;
+  name: string;
+  tag: string;
+  description: string;
+  logoUrl: string;
+  primaryLeagueId: string;
+  memberCount: number;
+}
+
+export type RacingSeedData = {
+  drivers: Driver[];
+  leagues: League[];
+  races: Race[];
+  results: Result[];
+  standings: Standing[];
+  memberships: RacingMembership[];
+  friendships: Friendship[];
+  feedEvents: FeedItem[];
+  teams: DemoTeamDTO[];
+};
+
+const POINTS_TABLE: Record<number, number> = {
+  1: 25,
+  2: 18,
+  3: 15,
+  4: 12,
+  5: 10,
+  6: 8,
+  7: 6,
+  8: 4,
+  9: 2,
+  10: 1,
+};
+
+function pickOne<T>(items: readonly T[]): T {
+  return items[Math.floor(faker.number.int({ min: 0, max: items.length - 1 }))];
+}
+
+function createDrivers(count: number): Driver[] {
+  const drivers: Driver[] = [];
+
+  for (let i = 0; i < count; i++) {
+    const id = `driver-${i + 1}`;
+    const name = faker.person.fullName();
+    const country = faker.location.countryCode('alpha-2');
+    const iracingId = faker.string.numeric(6);
+
+    drivers.push(
+      Driver.create({
+        id,
+        iracingId,
+        name,
+        country,
+        bio: faker.lorem.sentence(),
+        joinedAt: faker.date.past(),
+      }),
+    );
+  }
+
+  return drivers;
+}
+
+function createLeagues(ownerIds: string[]): League[] {
+  const leagueNames = [
+    'Global GT Masters',
+    'Midnight Endurance Series',
+    'Virtual Touring Cup',
+    'Sprint Challenge League',
+    'Club Racers Collective',
+    'Sim Racing Alliance',
+    'Pacific Time Attack',
+    'Nordic Night Series',
+  ];
+
+  const leagues: League[] = [];
+  const leagueCount = 6 + faker.number.int({ min: 0, max: 2 });
+
+  for (let i = 0; i < leagueCount; i++) {
+    const id = `league-${i + 1}`;
+    const name = leagueNames[i] ?? faker.company.name();
+    const ownerId = pickOne(ownerIds);
+
+    const settings = {
+      pointsSystem: faker.helpers.arrayElement(['f1-2024', 'indycar']),
+      sessionDuration: faker.helpers.arrayElement([45, 60, 90, 120]),
+      qualifyingFormat: faker.helpers.arrayElement(['open', 'single-lap']),
+    };
+
+    leagues.push(
+      League.create({
+        id,
+        name,
+        description: faker.lorem.sentence(),
+        ownerId,
+        settings,
+        createdAt: faker.date.past(),
+      }),
+    );
+  }
+
+  return leagues;
+}
+
+function createTeams(leagues: League[]): DemoTeamDTO[] {
+  const teams: DemoTeamDTO[] = [];
+  const teamCount = 24 + faker.number.int({ min: 0, max: 12 });
+
+  for (let i = 0; i < teamCount; i++) {
+    const id = `team-${i + 1}`;
+    const primaryLeague = pickOne(leagues);
+    const name = faker.company.name();
+    const tag = faker.string.alpha({ length: 4 }).toUpperCase();
+    const memberCount = faker.number.int({ min: 2, max: 8 });
+
+    teams.push({
+      id,
+      name,
+      tag,
+      description: faker.lorem.sentence(),
+      logoUrl: getTeamLogo(id),
+      primaryLeagueId: primaryLeague.id,
+      memberCount,
+    });
+  }
+
+  return teams;
+}
+
+function createMemberships(
+  drivers: Driver[],
+  leagues: League[],
+  teams: DemoTeamDTO[],
+): RacingMembership[] {
+  const memberships: RacingMembership[] = [];
+
+  const teamsByLeague = new Map<string, DemoTeamDTO[]>();
+  teams.forEach((team) => {
+    const list = teamsByLeague.get(team.primaryLeagueId) ?? [];
+    list.push(team);
+    teamsByLeague.set(team.primaryLeagueId, list);
+  });
+
+  drivers.forEach((driver) => {
+    // Each driver participates in 1–3 leagues
+    const leagueSampleSize = faker.number.int({ min: 1, max: Math.min(3, leagues.length) });
+    const shuffledLeagues = faker.helpers.shuffle(leagues).slice(0, leagueSampleSize);
+
+    shuffledLeagues.forEach((league) => {
+      const leagueTeams = teamsByLeague.get(league.id) ?? [];
+      const team =
+        leagueTeams.length > 0 && faker.datatype.boolean()
+          ? pickOne(leagueTeams)
+          : undefined;
+
+      memberships.push({
+        driverId: driver.id,
+        leagueId: league.id,
+        teamId: team?.id,
+      });
+    });
+  });
+
+  return memberships;
+}
+
+function createRaces(leagues: League[]): Race[] {
+  const races: Race[] = [];
+  const raceCount = 60 + faker.number.int({ min: 0, max: 20 });
+
+  const tracks = [
+    'Monza GP',
+    'Spa-Francorchamps',
+    'Suzuka',
+    'Mount Panorama',
+    'Silverstone GP',
+    'Interlagos',
+    'Imola',
+    'Laguna Seca',
+  ];
+
+  const cars = [
+    'GT3 – Porsche 911',
+    'GT3 – BMW M4',
+    'LMP3 Prototype',
+    'GT4 – Alpine',
+    'Touring – Civic',
+  ];
+
+  const baseDate = new Date();
+
+  for (let i = 0; i < raceCount; i++) {
+    const id = `race-${i + 1}`;
+    const league = pickOne(leagues);
+    const offsetDays = faker.number.int({ min: -30, max: 45 });
+    const scheduledAt = new Date(baseDate.getTime() + offsetDays * 24 * 60 * 60 * 1000);
+    const status = scheduledAt.getTime() < baseDate.getTime() ? 'completed' : 'scheduled';
+
+    races.push(
+      Race.create({
+        id,
+        leagueId: league.id,
+        scheduledAt,
+        track: faker.helpers.arrayElement(tracks),
+        car: faker.helpers.arrayElement(cars),
+        sessionType: 'race',
+        status,
+      }),
+    );
+  }
+
+  return races;
+}
+
+function createResults(drivers: Driver[], races: Race[]): Result[] {
+  const results: Result[] = [];
+
+  const completedRaces = races.filter((race) => race.status === 'completed');
+
+  completedRaces.forEach((race) => {
+    const participantCount = faker.number.int({ min: 20, max: 32 });
+    const shuffledDrivers = faker.helpers.shuffle(drivers).slice(0, participantCount);
+
+    shuffledDrivers.forEach((driver, index) => {
+      const position = index + 1;
+      const startPosition = faker.number.int({ min: 1, max: participantCount });
+      const fastestLap = 90_000 + index * 250 + faker.number.int({ min: 0, max: 2_000 });
+      const incidents = faker.number.int({ min: 0, max: 6 });
+
+      results.push(
+        Result.create({
+          id: `${race.id}-${driver.id}`,
+          raceId: race.id,
+          driverId: driver.id,
+          position,
+          startPosition,
+          fastestLap,
+          incidents,
+        }),
+      );
+    });
+  });
+
+  return results;
+}
+
+function createStandings(leagues: League[], results: Result[]): Standing[] {
+  const standingsByLeague = new Map<string, Standing[]>();
+
+  leagues.forEach((league) => {
+    const leagueRaceIds = new Set(
+      results
+        .filter((result) => {
+          return result.raceId.startsWith('race-');
+        })
+        .map((result) => result.raceId),
+    );
+
+    const leagueResults = results.filter((result) => leagueRaceIds.has(result.raceId));
+
+    const standingsMap = new Map<string, Standing>();
+
+    leagueResults.forEach((result) => {
+      const key = result.driverId;
+      let standing = standingsMap.get(key);
+
+      if (!standing) {
+        standing = Standing.create({
+          leagueId: league.id,
+          driverId: result.driverId,
+        });
+      }
+
+      standing = standing.addRaceResult(result.position, POINTS_TABLE);
+      standingsMap.set(key, standing);
+    });
+
+    const sortedStandings = Array.from(standingsMap.values()).sort((a, b) => {
+      if (b.points !== a.points) {
+        return b.points - a.points;
+      }
+      if (b.wins !== a.wins) {
+        return b.wins - a.wins;
+      }
+      return b.racesCompleted - a.racesCompleted;
+    });
+
+    const finalizedStandings = sortedStandings.map((standing, index) =>
+      standing.updatePosition(index + 1),
+    );
+
+    standingsByLeague.set(league.id, finalizedStandings);
+  });
+
+  return Array.from(standingsByLeague.values()).flat();
+}
+
+function createFriendships(drivers: Driver[]): Friendship[] {
+  const friendships: Friendship[] = [];
+
+  drivers.forEach((driver, index) => {
+    const friendCount = faker.number.int({ min: 3, max: 8 });
+    for (let offset = 1; offset <= friendCount; offset++) {
+      const friendIndex = (index + offset) % drivers.length;
+      const friend = drivers[friendIndex];
+      if (friend.id === driver.id) continue;
+
+      friendships.push({
+        driverId: driver.id,
+        friendId: friend.id,
+      });
+    }
+  });
+
+  return friendships;
+}
+
+function createFeedEvents(
+  drivers: Driver[],
+  leagues: League[],
+  races: Race[],
+  friendships: Friendship[],
+): FeedItem[] {
+  const events: FeedItem[] = [];
+  const now = new Date();
+  const completedRaces = races.filter((race) => race.status === 'completed');
+  const globalDrivers = faker.helpers.shuffle(drivers).slice(0, 10);
+
+  globalDrivers.forEach((driver, index) => {
+    const league = pickOne(leagues);
+    const race = completedRaces[index % Math.max(1, completedRaces.length)];
+    const minutesAgo = 15 + index * 10;
+
+    const baseTimestamp = new Date(now.getTime() - minutesAgo * 60 * 1000);
+
+    events.push({
+      id: `friend-joined-league:${driver.id}:${minutesAgo}`,
+      type: 'friend-joined-league',
+      timestamp: baseTimestamp,
+      actorDriverId: driver.id,
+      leagueId: league.id,
+      headline: `${driver.name} joined ${league.name}`,
+      body: 'They are now registered for the full season.',
+      ctaLabel: 'View league',
+      ctaHref: `/leagues/${league.id}`,
+    });
+
+    events.push({
+      id: `friend-finished-race:${driver.id}:${minutesAgo}`,
+      type: 'friend-finished-race',
+      timestamp: new Date(baseTimestamp.getTime() - 10 * 60 * 1000),
+      actorDriverId: driver.id,
+      leagueId: race.leagueId,
+      raceId: race.id,
+      position: (index % 5) + 1,
+      headline: `${driver.name} finished P${(index % 5) + 1} at ${race.track}`,
+      body: `${driver.name} secured a strong result in ${race.car}.`,
+      ctaLabel: 'View results',
+      ctaHref: `/races/${race.id}/results`,
+    });
+
+    events.push({
+      id: `league-highlight:${league.id}:${minutesAgo}`,
+      type: 'league-highlight',
+      timestamp: new Date(baseTimestamp.getTime() - 30 * 60 * 1000),
+      leagueId: league.id,
+      headline: `${league.name} active with ${drivers.length}+ drivers`,
+      body: 'Participation is growing. Perfect time to join the grid.',
+      ctaLabel: 'Explore league',
+      ctaHref: `/leagues/${league.id}`,
+    });
+  });
+
+  const sorted = events
+    .slice()
+    .sort((a, b) => b.timestamp.getTime() - a.timestamp.getTime());
+
+  return sorted;
+}
+
+export function createStaticRacingSeed(seed: number): RacingSeedData {
+  faker.seed(seed);
+
+  const drivers = createDrivers(96);
+  const leagues = createLeagues(drivers.slice(0, 12).map((d) => d.id));
+  const teams = createTeams(leagues);
+  const memberships = createMemberships(drivers, leagues, teams);
+  const races = createRaces(leagues);
+  const results = createResults(drivers, races);
+  const friendships = createFriendships(drivers);
+  const feedEvents = createFeedEvents(drivers, leagues, races, friendships);
+  const standings = createStandings(leagues, results);
+
+  return {
+    drivers,
+    leagues,
+    races,
+    results,
+    standings,
+    memberships,
+    friendships,
+    feedEvents,
+    teams,
+  };
+}
+
+/**
+ * Singleton seed used by website demo helpers.
+ * This mirrors the previous apps/website/lib/demo-data/index.ts behavior.
+ */
+const staticSeed = createStaticRacingSeed(42);
+
+export const drivers = staticSeed.drivers;
+export const leagues = staticSeed.leagues;
+export const races = staticSeed.races;
+export const results = staticSeed.results;
+export const standings = staticSeed.standings;
+export const teams = staticSeed.teams;
+export const memberships = staticSeed.memberships;
+export const friendships = staticSeed.friendships;
+export const feedEvents = staticSeed.feedEvents;
+
+/**
+ * Derived friend DTOs for UI consumption.
+ * This preserves the previous demo-data `friends` shape.
+ */
+export const friends: FriendDTO[] = staticSeed.drivers.map((driver) => ({
+  driverId: driver.id,
+  displayName: driver.name,
+  avatarUrl: getDriverAvatar(driver.id),
+  isOnline: true,
+  lastSeen: new Date(),
+  primaryLeagueId: staticSeed.memberships.find((m) => m.driverId === driver.id)?.leagueId,
+  primaryTeamId: staticSeed.memberships.find((m) => m.driverId === driver.id)?.teamId,
+}));
+
+export const topLeagues = leagues.map((league) => ({
+  ...league,
+  bannerUrl: getLeagueBanner(league.id),
+}));
+
+export type RaceWithResultsDTO = {
+  raceId: string;
+  track: string;
+  car: string;
+  scheduledAt: Date;
+  winnerDriverId: string;
+  winnerName: string;
+};
+
+export function getUpcomingRaces(limit?: number): readonly Race[] {
+  const upcoming = races.filter((race) => race.status === 'scheduled');
+  const sorted = upcoming
+    .slice()
+    .sort((a, b) => a.scheduledAt.getTime() - b.scheduledAt.getTime());
+  return typeof limit === 'number' ? sorted.slice(0, limit) : sorted;
+}
+
+export function getLatestResults(limit?: number): readonly RaceWithResultsDTO[] {
+  const completedRaces = races.filter((race) => race.status === 'completed');
+
+  const joined = completedRaces.map((race) => {
+    const raceResults = results
+      .filter((result) => result.raceId === race.id)
+      .slice()
+      .sort((a, b) => a.position - b.position);
+    const winner = raceResults[0];
+    const winnerDriver =
+      winner && drivers.find((driver) => driver.id === winner.driverId);
+
+    return {
+      raceId: race.id,
+      track: race.track,
+      car: race.car,
+      scheduledAt: race.scheduledAt,
+      winnerDriverId: winner?.driverId ?? '',
+      winnerName: winnerDriver?.name ?? 'Winner',
+    };
+  });
+
+  const sorted = joined
+    .slice()
+    .sort((a, b) => b.scheduledAt.getTime() - a.scheduledAt.getTime());
+
+  return typeof limit === 'number' ? sorted.slice(0, limit) : sorted;
+}