protocol delegation Pattern

protocol 을 유용하게 쓰는방법으로 delegation pattern 존재한다
delegation 대행자로써 protocol 상속받은 class,struct의 내장함수를 실행해주는것으로 유사한기능의 class,struct에 적용하면 모듈을 효율적이게 작성가능

protocol AppleDevice {
    var serialNumber:String {
        get
    }
    func findMyDevice()
}

struct iPhone: AppleDevice {
    init(master:AppleCompany) {
        master.delegate = self
    }
    var serialNumber: String {
        var SerialNumber = "iPhone"
        for i in 0...15 {
            SerialNumber += String(Int.random(in: 0...9))
        }
        return SerialNumber
    }
    func findMyDevice() {
        print("Find My Iphone...")
    }
}

struct Ipad: AppleDevice {
    init(master:AppleCompany) {
        master.delegate = self
    }
    var serialNumber: String {
        var SerialNumber = "iPad"
        for i in 0...15 {
            SerialNumber += String(Int.random(in: 0...9))
        }
        return SerialNumber
    }
    func findMyDevice() {
        print("Find My Ipad...")
    }
}

class AppleCompany {

    var delegate:AppleDevice?

    func RecallDevice() {
        print("Recall device")
    }
    func forcedFindMyDevice() {
        delegate?.findMyDevice()
    }
}

let steave = AppleCompany()

let iPhone13 = iPhone(master:steave)

steave.forcedFindMyDevice()
steave.RecallDevice()

let IpadAir = Ipad(master: steave)

steave.forcedFindMyDevice()

steave 대행자를 통해서 iPhone,Ipad의 findMyDevice 실행시킬수있다....