import Contacts

// 연락처 객체 가져오기
let contactStore = CNContactStore()
let contacts = try contactStore.unifiedContacts(matching: CNContact.predicateForContacts(matchingName: "홍길동"), keysToFetch: [])

if let contact = contacts.first {
    let birthday = DateComponents(year: 1990, month: 1, day: 1) // 생일 정보 생성
    let birthdayDate = Calendar.current.date(from: birthday)

    let newContact = contact.mutableCopy() as! CNMutableContact
    newContact.birthday = birthdayDate // 생일 정보 설정

    let anniversaryDate = DateComponents(year: 2010, month: 5, day: 10) // 기념일 정보 생성
    let anniversary = Calendar.current.date(from: anniversaryDate)
    newContact.dates.append(CNLabeledValue<NSDate>(label: "Anniversary", value: anniversary as NSDate?)) // 기념일 정보 설정

    let saveRequest = CNSaveRequest()
    saveRequest.update(newContact)
    
    try contactStore.execute(saveRequest)
}