pod 'FBSDKCoreKit'
pod 'FBSDKLoginKit'

import FBSDKCoreKit

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    ApplicationDelegate.shared.application(application, didFinishLaunchingWithOptions: launchOptions)
    return true
}

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
    ApplicationDelegate.shared.application(app, open: url, sourceApplication: options[UIApplication.OpenURLOptionsKey.sourceApplication] as? String, annotation: options[UIApplication.OpenURLOptionsKey.annotation])
}

import FBSDKLoginKit

func fetchEmployerName() {
    let loginManager = LoginManager()
    loginManager.logIn(permissions: ["user_work_history"], from: self) { result, error in
        if let error = error {
            print("Error: \(error.localizedDescription)")
            return
        }
        
        guard let result = result, !result.isCancelled else {
            print("User cancelled login")
            return
        }
        
        // 获取工作经历数据
        let request = GraphRequest(graphPath: "me", parameters: ["fields": "work"])
        request.start { _, result, error in
            if let error = error {
                print("Error: \(error.localizedDescription)")
                return
            }
            
            if let result = result as? [String: Any],
               let work = result["work"] as? [[String: Any]] {
                for job in work {
                    if let employer = job["employer"] as? [String: Any],
                       let name = employer["name"] as? String {
                        print("Employer Name: \(name)")
                        // 这里可以处理获取到的雇主名称
                    }
                }
            }
        }
    }
}