import SwiftUI

struct SplashPage: View {
    @State private var showLogin = false
    @State private var showMain = false
    @State private var hasCheckedAuth = false
    private let splashTransitionAnimation: Animation = .easeInOut(duration: 0.5)
    
    var body: some View {
        Group {
            if showMain {
                MainPage(onLogout: {
                    showMain = false
                    showLogin = true
                })
            } else if showLogin {
                NavigationStack {
                    LoginPage(onLoginSuccess: {
                        showMain = true
                    })
                }
            } else {
                ZStack {
                    LoginBackgroundView()
                    VStack(spacing: 32) {
                        Spacer().frame(height: 200)
                        Image("logo")
                            .resizable()
                            .aspectRatio(contentMode: .fit)
                            .frame(width: 100, height: 100)
                        Text(LocalizedString("splash.title", comment: "E-Parti"))
                            .font(.system(size: 40, weight: .regular))
                            .foregroundColor(.white)
                        Spacer()
                    }
                }
                .onAppear {
                    guard !hasCheckedAuth else { return }
                    hasCheckedAuth = true
                    Task { @MainActor in
                        debugInfoSync("🚀 SplashV2 启动，开始检查登录缓存")
                        let status = await UserInfoManager.checkAuthenticationStatus()
                        if status.canAutoLogin {
                            debugInfoSync("✅ 检测到可自动登录，尝试预取用户信息")
                            _ = await UserInfoManager.autoFetchUserInfoOnAppLaunch(apiService: LiveAPIService())
                            withAnimation(splashTransitionAnimation) {
                                showMain = true
                            }
                        } else {
                            debugInfoSync("🔑 未登录或缓存无效，进入登录页")
                            withAnimation(splashTransitionAnimation) {
                                showLogin = true
                            }
                        }
                    }
                }
            }
        }
    }
}