payfrit-beacon-ios/PayfritBeacon/RootView.swift

import SwiftUI

struct RootView: View {
    @State private var isAuthenticated = false
    @State private var isCheckingAuth = true
    @State private var userId: Int = 0
    @State private var selectedBusiness: Business?
    @State private var hasAutoSelected = false

    var body: some View {
        Group {
            if isCheckingAuth {
                VStack {
                    ProgressView()
                }
            } else if !isAuthenticated {
                LoginView { token, uid in
                    userId = uid
                    isAuthenticated = true
                }
            } else {
                BusinessListView(
                    hasAutoSelected: $hasAutoSelected,
                    onBusinessSelected: { business in
                        selectedBusiness = business
                    },
                    onLogout: {
                        isAuthenticated = false
                        selectedBusiness = nil
                        hasAutoSelected = false
                    }
                )
                .fullScreenCover(item: $selectedBusiness) { business in
                    ScanView(
                        businessId: business.businessId,
                        businessName: business.name,
                        onBack: { selectedBusiness = nil }
                    )
                }
            }
        }
        .modifier(DevBanner())
        .onAppear {
            checkAuth()
        }
    }

    private func checkAuth() {
        let token = UserDefaults.standard.string(forKey: "token")
        let savedUserId = UserDefaults.standard.integer(forKey: "userId")

        if let token = token, !token.isEmpty, savedUserId > 0 {
            isCheckingAuth = false
        } else {
            isCheckingAuth = false
        }
    }
}