wip

apps/website/lib/di-container.ts

@@ -26,20 +26,131 @@ import { InMemoryStandingRepository } from '@gridpilot/racing-infrastructure/rep
 /**
  * Seed data for development
  */
+/**
+ * Driver statistics and ranking data
+ */
+export interface DriverStats {
+  driverId: string;
+  rating: number;
+  totalRaces: number;
+  wins: number;
+  podiums: number;
+  dnfs: number;
+  avgFinish: number;
+  bestFinish: number;
+  worstFinish: number;
+  consistency: number;
+  overallRank: number;
+  percentile: number;
+}
+
+/**
+ * Mock driver stats with calculated rankings
+ */
+const driverStats: Record<string, DriverStats> = {};
+
 function createSeedData() {
-  // Create a sample driver
+  // Create sample drivers (matching membership-data.ts and team-data.ts)
   const driver1 = Driver.create({
-    id: '550e8400-e29b-41d4-a716-446655440001',
+    id: 'driver-1',
     iracingId: '123456',
     name: 'Max Verstappen',
     country: 'NL',
-    bio: 'Three-time world champion',
+    bio: 'Three-time world champion and team owner of Apex Racing',
     joinedAt: new Date('2024-01-15'),
   });
 
-  // Create a sample league
+  const driver2 = Driver.create({
+    id: 'driver-2',
+    iracingId: '234567',
+    name: 'Lewis Hamilton',
+    country: 'GB',
+    bio: 'Seven-time world champion leading Speed Demons',
+    joinedAt: new Date('2024-01-20'),
+  });
+
+  const driver3 = Driver.create({
+    id: 'driver-3',
+    iracingId: '345678',
+    name: 'Charles Leclerc',
+    country: 'MC',
+    bio: 'Ferrari race winner and Weekend Warriors team owner',
+    joinedAt: new Date('2024-02-01'),
+  });
+
+  const driver4 = Driver.create({
+    id: 'driver-4',
+    iracingId: '456789',
+    name: 'Lando Norris',
+    country: 'GB',
+    bio: 'Rising star in motorsport',
+    joinedAt: new Date('2024-02-15'),
+  });
+
+  // Initialize driver stats
+  driverStats['driver-1'] = {
+    driverId: 'driver-1',
+    rating: 3245,
+    totalRaces: 156,
+    wins: 45,
+    podiums: 89,
+    dnfs: 8,
+    avgFinish: 3.2,
+    bestFinish: 1,
+    worstFinish: 18,
+    consistency: 87,
+    overallRank: 1,
+    percentile: 99
+  };
+
+  driverStats['driver-2'] = {
+    driverId: 'driver-2',
+    rating: 3198,
+    totalRaces: 234,
+    wins: 78,
+    podiums: 145,
+    dnfs: 12,
+    avgFinish: 2.8,
+    bestFinish: 1,
+    worstFinish: 22,
+    consistency: 92,
+    overallRank: 2,
+    percentile: 98
+  };
+
+  driverStats['driver-3'] = {
+    driverId: 'driver-3',
+    rating: 2912,
+    totalRaces: 145,
+    wins: 34,
+    podiums: 67,
+    dnfs: 9,
+    avgFinish: 4.5,
+    bestFinish: 1,
+    worstFinish: 20,
+    consistency: 84,
+    overallRank: 3,
+    percentile: 96
+  };
+
+  driverStats['driver-4'] = {
+    driverId: 'driver-4',
+    rating: 2789,
+    totalRaces: 112,
+    wins: 23,
+    podiums: 56,
+    dnfs: 7,
+    avgFinish: 5.1,
+    bestFinish: 1,
+    worstFinish: 16,
+    consistency: 81,
+    overallRank: 5,
+    percentile: 93
+  };
+
+  // Create sample league (matching membership-data.ts)
   const league1 = League.create({
-    id: '550e8400-e29b-41d4-a716-446655440002',
+    id: 'league-1',
     name: 'European GT Championship',
     description: 'Weekly GT3 racing with professional drivers',
     ownerId: driver1.id,
@@ -53,7 +164,7 @@ function createSeedData() {
 
   // Create sample races
   const race1 = Race.create({
-    id: '550e8400-e29b-41d4-a716-446655440003',
+    id: 'race-1',
     leagueId: league1.id,
     scheduledAt: new Date('2024-03-15T19:00:00Z'),
     track: 'Monza GP',
@@ -63,7 +174,7 @@ function createSeedData() {
   });
 
   const race2 = Race.create({
-    id: '550e8400-e29b-41d4-a716-446655440004',
+    id: 'race-2',
     leagueId: league1.id,
     scheduledAt: new Date('2024-03-22T19:00:00Z'),
     track: 'Spa-Francorchamps',
@@ -72,10 +183,58 @@ function createSeedData() {
     status: 'scheduled',
   });
 
+  const race3 = Race.create({
+    id: 'race-3',
+    leagueId: league1.id,
+    scheduledAt: new Date('2024-04-05T19:00:00Z'),
+    track: 'Nürburgring GP',
+    car: 'Porsche 911 GT3 R',
+    sessionType: 'race',
+    status: 'scheduled',
+  });
+
+  // Create sample standings
+  const standing1 = Standing.create({
+    leagueId: league1.id,
+    driverId: driver1.id,
+    position: 1,
+    points: 25,
+    wins: 1,
+    racesCompleted: 1,
+  });
+
+  const standing2 = Standing.create({
+    leagueId: league1.id,
+    driverId: driver2.id,
+    position: 2,
+    points: 18,
+    wins: 0,
+    racesCompleted: 1,
+  });
+
+  const standing3 = Standing.create({
+    leagueId: league1.id,
+    driverId: driver3.id,
+    position: 3,
+    points: 15,
+    wins: 0,
+    racesCompleted: 1,
+  });
+
+  const standing4 = Standing.create({
+    leagueId: league1.id,
+    driverId: driver4.id,
+    position: 4,
+    points: 12,
+    wins: 0,
+    racesCompleted: 1,
+  });
+
   return {
-    drivers: [driver1],
+    drivers: [driver1, driver2, driver3, driver4],
     leagues: [league1],
-    races: [race1, race2],
+    races: [race1, race2, race3],
+    standings: [standing1, standing2, standing3, standing4],
   };
 }
 
@@ -108,7 +267,7 @@ class DIContainer {
     
     // Standing repository needs all three for recalculation
     this._standingRepository = new InMemoryStandingRepository(
-      undefined,
+      seedData.standings,
       this._resultRepository,
       this._raceRepository,
       this._leagueRepository
@@ -184,4 +343,39 @@ export function getStandingRepository(): IStandingRepository {
  */
 export function resetContainer(): void {
   DIContainer.reset();
+}
+
+/**
+ * Get driver statistics and rankings
+ */
+export function getDriverStats(driverId: string): DriverStats | null {
+  return driverStats[driverId] || null;
+}
+
+/**
+ * Get all driver rankings sorted by rating
+ */
+export function getAllDriverRankings(): DriverStats[] {
+  return Object.values(driverStats).sort((a, b) => b.rating - a.rating);
+}
+
+/**
+ * Get league-specific rankings for a driver
+ */
+export function getLeagueRankings(driverId: string, leagueId: string): {
+  rank: number;
+  totalDrivers: number;
+  percentile: number;
+} {
+  // Mock league rankings (in production, calculate from actual league membership)
+  const mockLeagueRanks: Record<string, Record<string, any>> = {
+    'league-1': {
+      'driver-1': { rank: 1, totalDrivers: 12, percentile: 92 },
+      'driver-2': { rank: 2, totalDrivers: 12, percentile: 84 },
+      'driver-3': { rank: 4, totalDrivers: 12, percentile: 67 },
+      'driver-4': { rank: 5, totalDrivers: 12, percentile: 58 }
+    }
+  };
+
+  return mockLeagueRanks[leagueId]?.[driverId] || { rank: 0, totalDrivers: 0, percentile: 0 };
 }

apps/website/lib/membership-data.ts

@@ -0,0 +1,208 @@
+/**
+ * In-memory league membership data for alpha prototype
+ */
+
+export type MembershipRole = 'owner' | 'admin' | 'steward' | 'member';
+export type MembershipStatus = 'active' | 'pending' | 'none';
+
+export interface LeagueMembership {
+  leagueId: string;
+  driverId: string;
+  role: MembershipRole;
+  status: MembershipStatus;
+  joinedAt: Date;
+}
+
+export interface JoinRequest {
+  id: string;
+  leagueId: string;
+  driverId: string;
+  requestedAt: Date;
+  message?: string;
+}
+
+// In-memory storage
+let memberships: LeagueMembership[] = [];
+let joinRequests: JoinRequest[] = [];
+
+// Current driver ID (matches the one in di-container)
+const CURRENT_DRIVER_ID = 'driver-1';
+
+// Initialize with seed data
+export function initializeMembershipData() {
+  memberships = [
+    {
+      leagueId: 'league-1',
+      driverId: CURRENT_DRIVER_ID,
+      role: 'owner',
+      status: 'active',
+      joinedAt: new Date('2024-01-15'),
+    },
+    {
+      leagueId: 'league-1',
+      driverId: 'driver-2',
+      role: 'member',
+      status: 'active',
+      joinedAt: new Date('2024-02-01'),
+    },
+    {
+      leagueId: 'league-1',
+      driverId: 'driver-3',
+      role: 'admin',
+      status: 'active',
+      joinedAt: new Date('2024-02-15'),
+    },
+  ];
+
+  joinRequests = [];
+}
+
+// Get membership for a driver in a league
+export function getMembership(leagueId: string, driverId: string): LeagueMembership | null {
+  return memberships.find(m => m.leagueId === leagueId && m.driverId === driverId) || null;
+}
+
+// Get all members for a league
+export function getLeagueMembers(leagueId: string): LeagueMembership[] {
+  return memberships.filter(m => m.leagueId === leagueId && m.status === 'active');
+}
+
+// Get pending join requests for a league
+export function getJoinRequests(leagueId: string): JoinRequest[] {
+  return joinRequests.filter(r => r.leagueId === leagueId);
+}
+
+// Join a league
+export function joinLeague(leagueId: string, driverId: string): void {
+  const existing = getMembership(leagueId, driverId);
+  if (existing) {
+    throw new Error('Already a member or have a pending request');
+  }
+
+  memberships.push({
+    leagueId,
+    driverId,
+    role: 'member',
+    status: 'active',
+    joinedAt: new Date(),
+  });
+}
+
+// Request to join a league (for invite-only leagues)
+export function requestToJoin(leagueId: string, driverId: string, message?: string): void {
+  const existing = getMembership(leagueId, driverId);
+  if (existing) {
+    throw new Error('Already a member or have a pending request');
+  }
+
+  const existingRequest = joinRequests.find(r => r.leagueId === leagueId && r.driverId === driverId);
+  if (existingRequest) {
+    throw new Error('Join request already pending');
+  }
+
+  joinRequests.push({
+    id: `request-${Date.now()}`,
+    leagueId,
+    driverId,
+    requestedAt: new Date(),
+    message,
+  });
+}
+
+// Leave a league
+export function leaveLeague(leagueId: string, driverId: string): void {
+  const membership = getMembership(leagueId, driverId);
+  if (!membership) {
+    throw new Error('Not a member of this league');
+  }
+
+  if (membership.role === 'owner') {
+    throw new Error('League owner cannot leave. Transfer ownership first.');
+  }
+
+  memberships = memberships.filter(m => !(m.leagueId === leagueId && m.driverId === driverId));
+}
+
+// Approve join request
+export function approveJoinRequest(requestId: string): void {
+  const request = joinRequests.find(r => r.id === requestId);
+  if (!request) {
+    throw new Error('Join request not found');
+  }
+
+  memberships.push({
+    leagueId: request.leagueId,
+    driverId: request.driverId,
+    role: 'member',
+    status: 'active',
+    joinedAt: new Date(),
+  });
+
+  joinRequests = joinRequests.filter(r => r.id !== requestId);
+}
+
+// Reject join request
+export function rejectJoinRequest(requestId: string): void {
+  joinRequests = joinRequests.filter(r => r.id !== requestId);
+}
+
+// Remove member (admin action)
+export function removeMember(leagueId: string, driverId: string, removedBy: string): void {
+  const removerMembership = getMembership(leagueId, removedBy);
+  if (!removerMembership || (removerMembership.role !== 'owner' && removerMembership.role !== 'admin')) {
+    throw new Error('Only owners and admins can remove members');
+  }
+
+  const targetMembership = getMembership(leagueId, driverId);
+  if (!targetMembership) {
+    throw new Error('Member not found');
+  }
+
+  if (targetMembership.role === 'owner') {
+    throw new Error('Cannot remove league owner');
+  }
+
+  memberships = memberships.filter(m => !(m.leagueId === leagueId && m.driverId === driverId));
+}
+
+// Update member role
+export function updateMemberRole(
+  leagueId: string,
+  driverId: string,
+  newRole: MembershipRole,
+  updatedBy: string
+): void {
+  const updaterMembership = getMembership(leagueId, updatedBy);
+  if (!updaterMembership || updaterMembership.role !== 'owner') {
+    throw new Error('Only league owner can change roles');
+  }
+
+  const targetMembership = getMembership(leagueId, driverId);
+  if (!targetMembership) {
+    throw new Error('Member not found');
+  }
+
+  if (newRole === 'owner') {
+    throw new Error('Use transfer ownership to change owner');
+  }
+
+  memberships = memberships.map(m => 
+    m.leagueId === leagueId && m.driverId === driverId
+      ? { ...m, role: newRole }
+      : m
+  );
+}
+
+// Check if driver is owner or admin
+export function isOwnerOrAdmin(leagueId: string, driverId: string): boolean {
+  const membership = getMembership(leagueId, driverId);
+  return membership?.role === 'owner' || membership?.role === 'admin';
+}
+
+// Get current driver ID
+export function getCurrentDriverId(): string {
+  return CURRENT_DRIVER_ID;
+}
+
+// Initialize on module load
+initializeMembershipData();

apps/website/lib/registration-data.ts

@@ -0,0 +1,130 @@
+/**
+ * In-memory race registration data for alpha prototype
+ */
+
+import { getMembership } from './membership-data';
+
+export interface RaceRegistration {
+  raceId: string;
+  driverId: string;
+  registeredAt: Date;
+}
+
+// In-memory storage (Set for quick lookups)
+const registrations = new Map<string, Set<string>>(); // raceId -> Set of driverIds
+
+/**
+ * Generate registration key for storage
+ */
+function getRegistrationKey(raceId: string, driverId: string): string {
+  return `${raceId}:${driverId}`;
+}
+
+/**
+ * Check if driver is registered for a race
+ */
+export function isRegistered(raceId: string, driverId: string): boolean {
+  const raceRegistrations = registrations.get(raceId);
+  return raceRegistrations ? raceRegistrations.has(driverId) : false;
+}
+
+/**
+ * Get all registered drivers for a race
+ */
+export function getRegisteredDrivers(raceId: string): string[] {
+  const raceRegistrations = registrations.get(raceId);
+  return raceRegistrations ? Array.from(raceRegistrations) : [];
+}
+
+/**
+ * Get registration count for a race
+ */
+export function getRegistrationCount(raceId: string): number {
+  const raceRegistrations = registrations.get(raceId);
+  return raceRegistrations ? raceRegistrations.size : 0;
+}
+
+/**
+ * Register driver for a race
+ * Validates league membership before registering
+ */
+export function registerForRace(
+  raceId: string,
+  driverId: string,
+  leagueId: string
+): void {
+  // Check if already registered
+  if (isRegistered(raceId, driverId)) {
+    throw new Error('Already registered for this race');
+  }
+
+  // Validate league membership
+  const membership = getMembership(leagueId, driverId);
+  if (!membership || membership.status !== 'active') {
+    throw new Error('Must be an active league member to register for races');
+  }
+
+  // Add registration
+  if (!registrations.has(raceId)) {
+    registrations.set(raceId, new Set());
+  }
+  registrations.get(raceId)!.add(driverId);
+}
+
+/**
+ * Withdraw from a race
+ */
+export function withdrawFromRace(raceId: string, driverId: string): void {
+  const raceRegistrations = registrations.get(raceId);
+  if (!raceRegistrations || !raceRegistrations.has(driverId)) {
+    throw new Error('Not registered for this race');
+  }
+
+  raceRegistrations.delete(driverId);
+  
+  // Clean up empty sets
+  if (raceRegistrations.size === 0) {
+    registrations.delete(raceId);
+  }
+}
+
+/**
+ * Get all races a driver is registered for
+ */
+export function getDriverRegistrations(driverId: string): string[] {
+  const raceIds: string[] = [];
+  
+  for (const [raceId, driverSet] of registrations.entries()) {
+    if (driverSet.has(driverId)) {
+      raceIds.push(raceId);
+    }
+  }
+  
+  return raceIds;
+}
+
+/**
+ * Clear all registrations for a race (e.g., when race is cancelled)
+ */
+export function clearRaceRegistrations(raceId: string): void {
+  registrations.delete(raceId);
+}
+
+/**
+ * Initialize with seed data
+ */
+export function initializeRegistrationData(): void {
+  registrations.clear();
+  
+  // Add some initial registrations for testing
+  // Race 2 (Spa-Francorchamps - upcoming)
+  registerForRace('race-2', 'driver-1', 'league-1');
+  registerForRace('race-2', 'driver-2', 'league-1');
+  registerForRace('race-2', 'driver-3', 'league-1');
+  
+  // Race 3 (Nürburgring GP - upcoming)
+  registerForRace('race-3', 'driver-1', 'league-1');
+}
+
+// Initialize on module load
+initializeRegistrationData();

apps/website/lib/team-data.ts

@@ -0,0 +1,335 @@
+/**
+ * In-memory team data for alpha prototype
+ */
+
+export type TeamRole = 'owner' | 'manager' | 'driver';
+export type TeamMembershipStatus = 'active' | 'pending' | 'none';
+
+export interface Team {
+  id: string;
+  name: string;
+  tag: string;
+  description: string;
+  ownerId: string;
+  leagues: string[];
+  createdAt: Date;
+}
+
+export interface TeamMembership {
+  teamId: string;
+  driverId: string;
+  role: TeamRole;
+  status: TeamMembershipStatus;
+  joinedAt: Date;
+}
+
+export interface TeamJoinRequest {
+  id: string;
+  teamId: string;
+  driverId: string;
+  requestedAt: Date;
+  message?: string;
+}
+
+// In-memory storage
+let teams: Team[] = [];
+let teamMemberships: TeamMembership[] = [];
+let teamJoinRequests: TeamJoinRequest[] = [];
+
+// Current driver ID (matches di-container)
+const CURRENT_DRIVER_ID = 'driver-1';
+
+// Initialize with seed data
+export function initializeTeamData() {
+  teams = [
+    {
+      id: 'team-1',
+      name: 'Apex Racing',
+      tag: 'APEX',
+      description: 'Professional GT3 racing team competing at the highest level',
+      ownerId: CURRENT_DRIVER_ID,
+      leagues: ['league-1'],
+      createdAt: new Date('2024-01-20'),
+    },
+    {
+      id: 'team-2',
+      name: 'Speed Demons',
+      tag: 'SPDM',
+      description: 'Fast and furious racing with a competitive edge',
+      ownerId: 'driver-2',
+      leagues: ['league-1'],
+      createdAt: new Date('2024-02-01'),
+    },
+    {
+      id: 'team-3',
+      name: 'Weekend Warriors',
+      tag: 'WKND',
+      description: 'Casual but competitive weekend racing',
+      ownerId: 'driver-3',
+      leagues: ['league-1'],
+      createdAt: new Date('2024-02-10'),
+    },
+  ];
+
+  teamMemberships = [
+    {
+      teamId: 'team-1',
+      driverId: CURRENT_DRIVER_ID,
+      role: 'owner',
+      status: 'active',
+      joinedAt: new Date('2024-01-20'),
+    },
+    {
+      teamId: 'team-2',
+      driverId: 'driver-2',
+      role: 'owner',
+      status: 'active',
+      joinedAt: new Date('2024-02-01'),
+    },
+    {
+      teamId: 'team-3',
+      driverId: 'driver-3',
+      role: 'owner',
+      status: 'active',
+      joinedAt: new Date('2024-02-10'),
+    },
+  ];
+
+  teamJoinRequests = [];
+}
+
+// Get all teams
+export function getAllTeams(): Team[] {
+  return teams;
+}
+
+// Get team by ID
+export function getTeam(teamId: string): Team | null {
+  return teams.find(t => t.id === teamId) || null;
+}
+
+// Get team membership for a driver
+export function getTeamMembership(teamId: string, driverId: string): TeamMembership | null {
+  return teamMemberships.find(m => m.teamId === teamId && m.driverId === driverId) || null;
+}
+
+// Get driver's team
+export function getDriverTeam(driverId: string): { team: Team; membership: TeamMembership } | null {
+  const membership = teamMemberships.find(m => m.driverId === driverId && m.status === 'active');
+  if (!membership) return null;
+  
+  const team = getTeam(membership.teamId);
+  if (!team) return null;
+  
+  return { team, membership };
+}
+
+// Get all members for a team
+export function getTeamMembers(teamId: string): TeamMembership[] {
+  return teamMemberships.filter(m => m.teamId === teamId && m.status === 'active');
+}
+
+// Get pending join requests for a team
+export function getTeamJoinRequests(teamId: string): TeamJoinRequest[] {
+  return teamJoinRequests.filter(r => r.teamId === teamId);
+}
+
+// Create a new team
+export function createTeam(
+  name: string,
+  tag: string,
+  description: string,
+  ownerId: string,
+  leagues: string[]
+): Team {
+  // Check if driver already has a team
+  const existingTeam = getDriverTeam(ownerId);
+  if (existingTeam) {
+    throw new Error('Driver already belongs to a team');
+  }
+
+  const team: Team = {
+    id: `team-${Date.now()}`,
+    name,
+    tag,
+    description,
+    ownerId,
+    leagues,
+    createdAt: new Date(),
+  };
+
+  teams.push(team);
+
+  // Auto-assign creator as owner
+  teamMemberships.push({
+    teamId: team.id,
+    driverId: ownerId,
+    role: 'owner',
+    status: 'active',
+    joinedAt: new Date(),
+  });
+
+  return team;
+}
+
+// Join a team
+export function joinTeam(teamId: string, driverId: string): void {
+  const existingTeam = getDriverTeam(driverId);
+  if (existingTeam) {
+    throw new Error('Driver already belongs to a team');
+  }
+
+  const existing = getTeamMembership(teamId, driverId);
+  if (existing) {
+    throw new Error('Already a member or have a pending request');
+  }
+
+  teamMemberships.push({
+    teamId,
+    driverId,
+    role: 'driver',
+    status: 'active',
+    joinedAt: new Date(),
+  });
+}
+
+// Request to join a team
+export function requestToJoinTeam(teamId: string, driverId: string, message?: string): void {
+  const existingTeam = getDriverTeam(driverId);
+  if (existingTeam) {
+    throw new Error('Driver already belongs to a team');
+  }
+
+  const existing = getTeamMembership(teamId, driverId);
+  if (existing) {
+    throw new Error('Already a member or have a pending request');
+  }
+
+  const existingRequest = teamJoinRequests.find(r => r.teamId === teamId && r.driverId === driverId);
+  if (existingRequest) {
+    throw new Error('Join request already pending');
+  }
+
+  teamJoinRequests.push({
+    id: `team-request-${Date.now()}`,
+    teamId,
+    driverId,
+    requestedAt: new Date(),
+    message,
+  });
+}
+
+// Leave a team
+export function leaveTeam(teamId: string, driverId: string): void {
+  const membership = getTeamMembership(teamId, driverId);
+  if (!membership) {
+    throw new Error('Not a member of this team');
+  }
+
+  if (membership.role === 'owner') {
+    throw new Error('Team owner cannot leave. Transfer ownership or disband team first.');
+  }
+
+  teamMemberships = teamMemberships.filter(m => !(m.teamId === teamId && m.driverId === driverId));
+}
+
+// Approve join request
+export function approveTeamJoinRequest(requestId: string): void {
+  const request = teamJoinRequests.find(r => r.id === requestId);
+  if (!request) {
+    throw new Error('Join request not found');
+  }
+
+  teamMemberships.push({
+    teamId: request.teamId,
+    driverId: request.driverId,
+    role: 'driver',
+    status: 'active',
+    joinedAt: new Date(),
+  });
+
+  teamJoinRequests = teamJoinRequests.filter(r => r.id !== requestId);
+}
+
+// Reject join request
+export function rejectTeamJoinRequest(requestId: string): void {
+  teamJoinRequests = teamJoinRequests.filter(r => r.id !== requestId);
+}
+
+// Remove member (admin action)
+export function removeTeamMember(teamId: string, driverId: string, removedBy: string): void {
+  const removerMembership = getTeamMembership(teamId, removedBy);
+  if (!removerMembership || (removerMembership.role !== 'owner' && removerMembership.role !== 'manager')) {
+    throw new Error('Only owners and managers can remove members');
+  }
+
+  const targetMembership = getTeamMembership(teamId, driverId);
+  if (!targetMembership) {
+    throw new Error('Member not found');
+  }
+
+  if (targetMembership.role === 'owner') {
+    throw new Error('Cannot remove team owner');
+  }
+
+  teamMemberships = teamMemberships.filter(m => !(m.teamId === teamId && m.driverId === driverId));
+}
+
+// Update member role
+export function updateTeamMemberRole(
+  teamId: string,
+  driverId: string,
+  newRole: TeamRole,
+  updatedBy: string
+): void {
+  const updaterMembership = getTeamMembership(teamId, updatedBy);
+  if (!updaterMembership || updaterMembership.role !== 'owner') {
+    throw new Error('Only team owner can change roles');
+  }
+
+  const targetMembership = getTeamMembership(teamId, driverId);
+  if (!targetMembership) {
+    throw new Error('Member not found');
+  }
+
+  if (newRole === 'owner') {
+    throw new Error('Use transfer ownership to change owner');
+  }
+
+  teamMemberships = teamMemberships.map(m => 
+    m.teamId === teamId && m.driverId === driverId
+      ? { ...m, role: newRole }
+      : m
+  );
+}
+
+// Check if driver is owner or manager
+export function isTeamOwnerOrManager(teamId: string, driverId: string): boolean {
+  const membership = getTeamMembership(teamId, driverId);
+  return membership?.role === 'owner' || membership?.role === 'manager';
+}
+
+// Get current driver ID
+export function getCurrentDriverId(): string {
+  return CURRENT_DRIVER_ID;
+}
+
+// Update team info
+export function updateTeam(
+  teamId: string,
+  updates: Partial<Pick<Team, 'name' | 'tag' | 'description' | 'leagues'>>,
+  updatedBy: string
+): void {
+  if (!isTeamOwnerOrManager(teamId, updatedBy)) {
+    throw new Error('Only owners and managers can update team info');
+  }
+
+  teams = teams.map(t => 
+    t.id === teamId
+      ? { ...t, ...updates }
+      : t
+  );
+}
+
+// Initialize on module load
+initializeTeamData();