//
//  AppServices.swift
//  suixinkan
//
//  Created by Codex on 2026/6/26.
//

import Foundation

@MainActor
/// 全局依赖容器，集中提供 ViewModel 与 ViewController 所需的 API 和上下文。
final class AppServices {
    static let shared = AppServices()

    let session: SessionBundle
    let context: AppContextBundle
    let network: NetworkBundle
    let ui: UIFeedbackBundle
    let runtime: AppRuntimeBundle
    let appRouter = AppRouter()

    private let tokenStore: SessionTokenStore
    private let snapshotStore: AccountSnapshotStore

    // MARK: - 扁平访问（兼容现有调用方）

    var appSession: AppSession { session.appSession }
    var accountContext: AccountContext { context.accountContext }
    var permissionContext: PermissionContext { context.permissionContext }
    var scenicSpotContext: ScenicSpotContext { context.scenicSpotContext }
    var toastCenter: ToastCenter { ui.toastCenter }
    var globalLoading: GlobalLoadingCenter { ui.globalLoading }
    var scenicQueueRuntime: ScenicQueueRuntime { runtime.scenicQueueRuntime }

    var apiClient: APIClient { network.apiClient }
    var authAPI: AuthAPI { network.authAPI }
    var profileAPI: ProfileAPI { network.profileAPI }
    var uploadAPI: UploadAPI { network.uploadAPI }
    var ossUploadService: OSSUploadService { network.ossUploadService }
    var accountContextAPI: AccountContextAPI { network.accountContextAPI }
    var ordersAPI: OrdersAPI { network.ordersAPI }
    var statisticsAPI: StatisticsAPI { network.statisticsAPI }
    var paymentAPI: PaymentAPI { network.paymentAPI }
    var walletAPI: WalletAPI { network.walletAPI }
    var pushAPI: PushAPI { network.pushAPI }
    var scenicPermissionAPI: ScenicPermissionAPI { network.scenicPermissionAPI }
    var scenicSettlementAPI: ScenicSettlementAPI { network.scenicSettlementAPI }
    var messageCenterAPI: MessageCenterAPI { network.messageCenterAPI }
    var scenicQueueAPI: ScenicQueueAPI { network.scenicQueueAPI }
    var liveAPI: LiveAPI { network.liveAPI }
    var operatingAreaAPI: OperatingAreaAPI { network.operatingAreaAPI }
    var pilotCertificationAPI: PilotCertificationAPI { network.pilotCertificationAPI }
    var taskAPI: TaskAPI { network.taskAPI }
    var projectAPI: ProjectAPI { network.projectAPI }
    var scheduleAPI: ScheduleAPI { network.scheduleAPI }
    var inviteAPI: InviteAPI { network.inviteAPI }
    var assetsAPI: AssetsAPI { network.assetsAPI }
    var punchPointAPI: PunchPointAPI { network.punchPointAPI }
    var locationReportAPI: LocationReportAPI { network.locationReportAPI }

    var authSessionCoordinator: AuthSessionCoordinator { session.authSessionCoordinator }
    var sessionBootstrapper: SessionBootstrapper { session.sessionBootstrapper }

    /// 当前景区 ID。
    var currentScenicId: Int? {
        accountContext.currentScenic?.id
    }

    /// 当前用户 staffId，用于钱包等接口。
    var staffId: Int? {
        Int(accountContext.profile?.userId ?? "")
    }

    /// 当前用户 ID 字符串。
    var userId: String? {
        accountContext.profile?.userId
    }

    /// 生产环境默认初始化。
    private init() {
        let tokenStore = SessionTokenStore()
        let snapshotStore = AccountSnapshotStore()
        let preferencesStore = AppPreferencesStore()
        let apiClient = APIClient()

        self.tokenStore = tokenStore
        self.snapshotStore = snapshotStore
        context = AppContextBundle(
            accountContext: AccountContext(),
            permissionContext: PermissionContext(),
            scenicSpotContext: ScenicSpotContext()
        )
        network = NetworkBundle(apiClient: apiClient)
        ui = UIFeedbackBundle(
            toastCenter: ToastCenter(),
            globalLoading: GlobalLoadingCenter()
        )
        runtime = AppRuntimeBundle(scenicQueueRuntime: ScenicQueueRuntime())
        session = SessionBundle(
            appSession: AppSession(),
            authSessionCoordinator: AuthSessionCoordinator(
                tokenStore: tokenStore,
                snapshotStore: snapshotStore,
                preferencesStore: preferencesStore
            ),
            sessionBootstrapper: SessionBootstrapper(
                tokenStore: tokenStore,
                snapshotStore: snapshotStore
            )
        )
        bindAuthTokenProvider()
    }

    /// 测试专用初始化，允许注入 mock `APIClient` 与存储替身。
    init(
        apiClient: APIClient,
        tokenStore: SessionTokenStore = SessionTokenStore(),
        snapshotStore: AccountSnapshotStore = AccountSnapshotStore(),
        preferencesStore: AppPreferencesStore = AppPreferencesStore()
    ) {
        self.tokenStore = tokenStore
        self.snapshotStore = snapshotStore
        context = AppContextBundle(
            accountContext: AccountContext(),
            permissionContext: PermissionContext(),
            scenicSpotContext: ScenicSpotContext()
        )
        network = NetworkBundle(apiClient: apiClient)
        ui = UIFeedbackBundle(
            toastCenter: ToastCenter(),
            globalLoading: GlobalLoadingCenter()
        )
        runtime = AppRuntimeBundle(scenicQueueRuntime: ScenicQueueRuntime())
        session = SessionBundle(
            appSession: AppSession(),
            authSessionCoordinator: AuthSessionCoordinator(
                tokenStore: tokenStore,
                snapshotStore: snapshotStore,
                preferencesStore: preferencesStore
            ),
            sessionBootstrapper: SessionBootstrapper(
                tokenStore: tokenStore,
                snapshotStore: snapshotStore
            )
        )
        bindAuthTokenProvider()
    }

    /// 绑定推送与 UIKit 导航。
    func configurePushNotifications() {
        PushNotificationManager.shared.configure(
            api: pushAPI,
            session: appSession,
            router: appRouter
        )
    }

    /// 将 `APIClient` 与当前 `AppSession` token 关联。
    private func bindAuthTokenProvider() {
        apiClient.bindAuthTokenProvider { [unowned self] in
            appSession.token
        }
    }
}