Swift Session Management

@StateObject private var paraManager: ParaManager

.onChange(of: paraManager.sessionState) { newState in
  switch newState {
    case .activeLoggedIn:
      print("User authenticated")
    case .inactive:
      print("Session inactive")
    default:
      print("Session state: \(newState)")
  }
}

func performSensitiveOperation() {
  Task {
    do {
      if try await paraManager.isSessionActive() {
        // Proceed with sensitive operation
        try await signTransaction(...)
      } else {
        // Handle session expiration - redirect to login
        navigateToLogin()
      }
    } catch {
      await MainActor.run {
        isLoggedIn = false
      }
    }
  }
}

import ParaSwift

func handleSessionExpiration() async {
  do {
    // When session expires, first clear storage
    try await paraManager.logout()
    
    // Then redirect to authentication screen
    await MainActor.run {
      // Navigate to authentication screen
    }
  } catch {
    // Handle error
  }
}

class AppDelegate: NSObject, UIApplicationDelegate {
  func applicationDidEnterBackground(_ application: UIApplication) {
    Task {
      try? await paraManager.logout()
    }
  }
}

func sendSessionToServer() async throws {
  do {
    // Export session without signing capabilities
    let sessionString = try await paraManager.exportSession()
    
    // Create URL request
    var request = URLRequest(url: URL(string: "https://your-api.com/sessions")!)
    request.httpMethod = "POST"
    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    
    // Create request body
    let body: [String: Any] = ["session": sessionString]
    request.httpBody = try JSONSerialization.data(withJSONObject: body)
    
    // Send request
    let (_, response) = try await URLSession.shared.data(for: request)
    
    guard let httpResponse = response as? HTTPURLResponse, 
          httpResponse.statusCode == 200 else {
      throw URLError(.badServerResponse)
    }
    
    // Handle success
  } catch {
    // Handle error
    throw error
  }
}

import SwiftUI
import ParaSwift

class AppStartupManager: ObservableObject {
  @Published var isLoggedIn = false
  let paraManager: ParaManager
  
  init(paraManager: ParaManager) {
    self.paraManager = paraManager
    checkSessionOnLaunch()
  }
  
  func checkSessionOnLaunch() {
    Task {
      do {
        let isActive = try await paraManager.isSessionActive()
        await MainActor.run {
          if isActive {
            // User is logged in
            isLoggedIn = true
          } else {
            // Session not active, clear any lingering data
            Task {
              try? await paraManager.logout()
            }
            isLoggedIn = false
          }
        }
      } catch {
        await MainActor.run {
          isLoggedIn = false
        }
      }
    }
  }
}

import SwiftUI
import ParaSwift

class LifecycleManager: ObservableObject {
  let paraManager: ParaManager
  
  init(paraManager: ParaManager) {
    self.paraManager = paraManager
    
    // Register for foreground notifications
    NotificationCenter.default.addObserver(
      self,
      selector: #selector(appMovedToForeground),
      name: UIApplication.willEnterForegroundNotification,
      object: nil
    )
  }
  
  @objc func appMovedToForeground() {
    // App came to foreground, check session
    checkSession()
  }
  
  func checkSession() {
    Task {
      let isActive = try? await paraManager.isSessionActive()
      if isActive != true {
        try? await paraManager.logout()
        await MainActor.run {
          // Navigate to login screen
        }
      }
    }
  }
  
  deinit {
    NotificationCenter.default.removeObserver(self)
  }
}