Services

// The pattern — repeated for every service
protocol ScheduleServiceProtocol {
    func fetchSchedule(for date: Date) async throws -> ScheduleResponse
}

@Observable
class RealScheduleService: ScheduleServiceProtocol { /* hits API */ }

@Observable
class FakeScheduleService: ScheduleServiceProtocol { /* returns mock data */ }

// Injection
@Environment(\.scheduleService) private var scheduleService

protocol DataSource<T> {
    associatedtype T

    var data: T? { get }

    func load() async throws -> T
    func refresh() async throws -> T
    func shouldPoll() -> Bool
    var pollIntervalMs: Int { get }
}

SomeView()
    .viewSubscriber(dataSource: liveMatchesDataSource)

AppLogger.info("Token registered", category: .liveActivity)
AppLogger.error("Failed to adopt push-started LA", error: error, category: .liveActivity)

@main
struct SightscreenApp: App {
    var body: some Scene {
        WindowGroup {
            RootView()
                .environment(\.authService, RealCognitoAuthService())
                .environment(\.scheduleService, RealScheduleService())
                .environment(\.liveActivityService, RealLiveActivityService())
                .environment(\.notificationService, RealNotificationService())
                .environment(\.appConfigService, RealAppConfigService())
                .environment(\.imageCacheService, RealImageCacheService())
                .environment(\.matchCacheStore, RealMatchCacheStore())
        }
    }
}

#Preview {
    MatchListView()
        .environment(\.scheduleService, FakeScheduleService())
        .environment(\.liveActivityService, FakeLiveActivityService())
}