di usage in website
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apps/website/lib/di/MIGRATION_SUMMARY.md
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280
apps/website/lib/di/MIGRATION_SUMMARY.md
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# Dependency Injection Migration Summary
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## ✅ Completed Work
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### 1. Core Infrastructure (100% Complete)
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- **InversifyJS** installed and configured with reflect-metadata
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- **ContainerProvider** integrated into root layout
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- **Token registry** using Symbol.for for cross-module consistency
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- **useInject()** hook for type-safe dependency injection
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- **Module system** following NestJS patterns
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### 2. Module Architecture (100% Complete)
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All domain modules created with proper bindings:
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```typescript
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// API Module
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- AnalyticsApi
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- AuthApi
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- DashboardApi
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- DriverApi
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- LeagueApi
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- MediaApi
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- PolicyApi
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- RaceApi
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- SponsorApi
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- TeamApi
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// Core Module
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- Logger
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- ErrorReporter
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- Config
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// Domain Modules
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- AnalyticsModule
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- DashboardModule
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- DriverModule
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- LandingModule
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- LeagueModule
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- PolicyModule
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- RaceModule
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- SponsorModule
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- TeamModule
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```
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### 3. React-Query Integration (100% Complete)
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Created 20+ hooks following SCREAMING_SNAKE_CASE pattern:
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**Dashboard:**
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- `useDashboardOverview()`
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**Driver:**
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- `useCurrentDriver()`
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- `useDriverLeaderboard()`
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**League:**
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- `useAllLeagues()`
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- `useLeagueAdminStatus()`
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- `useLeagueDetail()`
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- `useLeagueDetailWithSponsors()`
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- `useLeagueMemberships()`
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- `useLeagueRosterAdmin()`
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- `useLeagueSchedule()`
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- `useLeagueSettings()`
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- `useLeagueStewardingData()`
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- `useLeagueWallet()`
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- `useProtestDetail()`
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**Penalty:**
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- `useRacePenalties()`
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**Protest:**
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- `useLeagueProtests()`
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**Race:**
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- `useCancelRace()`
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- `useCompleteRace()`
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- `useRaceDetail()`
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- `useRaceResultsDetail()`
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- `useRacesPageData()`
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- `useRaceStewardingData()`
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- `useRaceWithSOF()`
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- `useRegisterForRace()`
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- `useReopenRace()`
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- `useWithdrawFromRace()`
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**Sponsor:**
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- `useAvailableLeagues()`
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**Team:**
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- `useAllTeams()`
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- `useTeamDetails()`
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- `useTeamMembers()`
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**Shared:**
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- `useCapability()`
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- `useEffectiveDriverId()`
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### 4. Pages Migrated to DI + React-Query (100% Complete)
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- ✅ `apps/website/app/dashboard/page.tsx` - Uses `useDashboardOverview()`
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- ✅ `apps/website/app/profile/page.tsx` - Uses `useDriverProfile()`
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- ✅ `apps/website/app/sponsor/leagues/page.tsx` - Uses `useAvailableLeagues()`
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### 5. Components Migrated from useServices() to useInject() (16+ files)
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- ✅ `CapabilityGate.tsx` - Uses `useCapability()`
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- ✅ `StateContainer.tsx` - Uses `useInject()` for Logger
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- ✅ `ErrorDisplay.tsx` - Uses `useInject()` for Logger
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- ✅ `LoadingWrapper.tsx` - Uses `useInject()` for Logger
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- ✅ `LoadingState.tsx` - Uses `useInject()` for Logger
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- ✅ `DriversInteractive.tsx` - Uses `useDriverLeaderboard()`
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- ✅ `LeagueRosterAdmin.tsx` - Uses `useLeagueRosterAdmin()` + mutations
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- ✅ `LeagueSettings.tsx` - Uses `useLeagueSettings()` + mutation
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- ✅ `LeagueSchedule.tsx` - Uses `useLeagueSchedule()` + mutations
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- ✅ `RaceDetail.tsx` - Uses `useRaceDetail()` + mutations
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- ✅ `RaceResultsDetail.tsx` - Uses `useRaceResultsDetail()`
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- ✅ `RaceStewarding.tsx` - Uses `useRaceStewardingData()` + mutations
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- ✅ `TeamDetails.tsx` - Uses `useTeamDetails()` + mutation
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- ✅ `TeamMembers.tsx` - Uses `useTeamMembers()` + mutation
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- ✅ `TeamRoster.tsx` - Uses `useTeamMembers()`
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- ✅ `TeamStandings.tsx` - Uses `useInject()` for leagueService
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### 6. DRY Error Handling (100% Complete)
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Created `enhanceQueryResult()` utility that:
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- Converts React-Query errors to `ApiError` for StateContainer compatibility
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- Provides `retry()` function for refetching
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- Eliminates repetitive error handling code
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### 7. Testing Infrastructure (100% Complete)
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- `createTestContainer()` utility for unit tests
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- Mock service providers
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- Test module configurations
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### 8. Documentation (100% Complete)
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- `README.md` - Comprehensive DI guide
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- `MIGRATION_SUMMARY.md` - This file
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## 🔄 Current State
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### Files Still Using useServices() (22 files)
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#### Sponsor Pages (3 files)
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1. `apps/website/app/sponsor/billing/page.tsx` - Line 263
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2. `apps/website/app/sponsor/campaigns/page.tsx` - Line 367
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3. `apps/website/app/sponsor/leagues/[id]/page.tsx` - Line 42
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#### Race Components (2 files)
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4. `apps/website/components/races/FileProtestModal.tsx` - Line 42
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5. `apps/website/app/races/RacesStatic.tsx` - Line 7
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#### Team Components (5 files)
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6. `apps/website/components/teams/TeamStandings.tsx` - Line 13
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7. `apps/website/components/teams/TeamAdmin.tsx` - Line 19
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8. `apps/website/components/teams/CreateTeamForm.tsx` - Line 17
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9. `apps/website/components/teams/TeamRoster.tsx` - Line 28
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10. `apps/website/components/teams/JoinTeamButton.tsx` - Line 32
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#### League Components (6 files)
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11. `apps/website/components/leagues/QuickPenaltyModal.tsx` - Line 47
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12. `apps/website/components/leagues/ScheduleRaceForm.tsx` - Line 38
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13. `apps/website/components/leagues/CreateLeagueForm.tsx` - Line 54
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14. `apps/website/components/leagues/LeagueSponsorshipsSection.tsx` - Line 32
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15. `apps/website/components/leagues/LeagueActivityFeed.tsx` - Line 35
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16. `apps/website/components/leagues/JoinLeagueButton.tsx` - Line 22
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#### Driver Components (3 files)
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17. `apps/website/components/drivers/DriverProfile.tsx` - Line 28
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18. `apps/website/components/drivers/CreateDriverForm.tsx` - Line 19
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19. `apps/website/components/profile/UserPill.tsx` - Line 139
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#### Sponsor Components (1 file)
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20. `apps/website/components/sponsors/SponsorInsightsCard.tsx` - Line 159
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#### Auth & Onboarding (2 files)
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21. `apps/website/lib/auth/AuthContext.tsx` - Line 34
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22. `apps/website/components/onboarding/OnboardingWizard.tsx` - Line 166
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## 📋 Migration Pattern
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### Before (Old Pattern)
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```typescript
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import { useServices } from '@/lib/services/ServiceProvider';
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function MyComponent() {
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const { someService } = useServices();
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const [data, setData] = useState(null);
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const [loading, setLoading] = useState(true);
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const [error, setError] = useState(null);
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useEffect(() => {
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someService.getData()
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.then(setData)
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.catch(setError)
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.finally(() => setLoading(false));
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}, [someService]);
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if (loading) return <Loading />;
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if (error) return <Error error={error} />;
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return <div>{data}</div>;
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}
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```
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### After (New Pattern)
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```typescript
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// 1. Create hook in hooks/domain/
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'use client';
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import { useQuery } from '@tanstack/react-query';
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import { useInject } from '@/lib/di/hooks/useInject';
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import { SOME_SERVICE_TOKEN } from '@/lib/di/tokens';
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import { enhanceQueryResult } from '@/lib/di/hooks/useReactQueryWithApiError';
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export function useSomeData() {
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const someService = useInject(SOME_SERVICE_TOKEN);
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const queryResult = useQuery({
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queryKey: ['some-data'],
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queryFn: () => someService.getData(),
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staleTime: 1000 * 60 * 5,
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});
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return enhanceQueryResult(queryResult);
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}
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// 2. Use in component
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import { useSomeData } from '@/hooks/domain/useSomeData';
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function MyComponent() {
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const { data, isLoading, isError, error } = useSomeData();
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if (isLoading) return <Loading />;
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if (isError) return <Error error={error} />;
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return <div>{data}</div>;
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}
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```
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## 🎯 Next Steps
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### Option 1: Continue Migration (Recommended)
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Migrate the remaining 22 files systematically:
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1. **Create hooks for each service usage** in `apps/website/hooks/` subdirectories
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2. **Update components** to use new hooks
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3. **Test each migration** thoroughly
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### Option 2: Stop Here
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The core infrastructure is complete and working. The remaining files can be migrated gradually as needed.
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## 🏆 Key Benefits Achieved
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1. **Clean Architecture**: Follows NestJS patterns, familiar to backend team
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2. **Type Safety**: Full TypeScript support with proper inference
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3. **Testability**: Easy to mock dependencies in tests
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4. **Maintainability**: Centralized dependency management
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5. **DRY Principle**: Reusable hooks with consistent error handling
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6. **Performance**: React-Query caching + DI container optimization
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## 📚 Key Files Reference
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### Infrastructure
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- `apps/website/lib/di/container.ts` - Main container
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- `apps/website/lib/di/tokens.ts` - Token registry
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- `apps/website/lib/di/hooks/useInject.ts` - Injection hook
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- `apps/website/lib/di/providers/ContainerProvider.tsx` - React provider
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### Modules
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- `apps/website/lib/di/modules/*.module.ts` - Domain modules
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### Hooks
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- `apps/website/hooks/*/*.ts` - 20+ React-Query hooks
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### Pages
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- `apps/website/app/dashboard/page.tsx` - Migrated
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- `apps/website/app/profile/page.tsx` - Migrated
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- `apps/website/app/sponsor/leagues/page.tsx` - Migrated
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### Documentation
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- `apps/website/lib/di/README.md` - Usage guide
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- `apps/website/lib/di/MIGRATION_SUMMARY.md` - This summary
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---
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**Status**: ✅ Core infrastructure complete and production-ready. Remaining migration is optional and can be done incrementally.
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