import SwiftUI
import ComposableArchitecture

struct AppRootView: View {
    @State private var shouldShowMainApp = false
    @State private var shouldShowHomePage = false
    
    let splashStore = Store(
        initialState: SplashFeature.State()
    ) {
        SplashFeature()
    }
    
    let loginStore = Store(
        initialState: LoginFeature.State()
    ) {
        LoginFeature()
    }
    
    let homeStore = Store(
        initialState: HomeFeature.State()
    ) {
        HomeFeature()
    }
    
    var body: some View {
        ZStack {
            Group {
                if shouldShowHomePage {
                    // 主页
                    HomeView(store: homeStore)
                        .transition(.opacity.animation(.easeInOut(duration: 0.5)))
                } else if shouldShowMainApp {
                    // 登录界面
                    LoginView(store: loginStore)
                        .transition(.opacity.animation(.easeInOut(duration: 0.5)))
                } else {
                    // 启动画面
                    SplashView(store: splashStore)
                        .transition(.opacity.animation(.easeInOut(duration: 0.5)))
                }
            }
            .onReceive(NotificationCenter.default.publisher(for: .autoLoginSuccess)) { _ in
                // 自动登录成功，直接进入主页
                withAnimation(.easeInOut(duration: 0.5)) {
                    shouldShowHomePage = true
                }
            }
            .onReceive(NotificationCenter.default.publisher(for: .autoLoginFailed)) { _ in
                // 自动登录失败，进入登录页面
                withAnimation(.easeInOut(duration: 0.5)) {
                    shouldShowMainApp = true
                }
            }
            .onReceive(NotificationCenter.default.publisher(for: .ticketSuccess)) { _ in
                // 手动登录成功，切换到主页
                withAnimation(.easeInOut(duration: 0.5)) {
                    shouldShowHomePage = true
                }
            }
            .onReceive(NotificationCenter.default.publisher(for: .homeLogout)) { _ in
                // 从主页登出，返回登录页面
                withAnimation(.easeInOut(duration: 0.5)) {
                    shouldShowHomePage = false
                    shouldShowMainApp = true
                }
            }
            
            // 全局 API Loading 效果视图 - 显示在最顶层
            APILoadingEffectView()
        }
    }
}

extension Notification.Name {
    static let splashFinished = Notification.Name("splashFinished")
    static let ticketSuccess = Notification.Name("ticketSuccess")
    static let autoLoginSuccess = Notification.Name("autoLoginSuccess")
    static let autoLoginFailed = Notification.Name("autoLoginFailed")
}

#Preview {
    AppRootView()
}