쥬스메이커 [STEP 2] yoshikim, Marco #85
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,119 @@ | ||
| // | ||
| // JuiceMaker - ViewController.swift | ||
| // Created by yagom. | ||
| // Copyright © yagom academy. All rights reserved. | ||
| // | ||
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| import UIKit | ||
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| class MainViewController: UIViewController { | ||
| @IBOutlet weak var strawberryLabel: UILabel! | ||
| @IBOutlet weak var bananaLabel: UILabel! | ||
| @IBOutlet weak var mangoLabel: UILabel! | ||
| @IBOutlet weak var kiwiLabel: UILabel! | ||
| @IBOutlet weak var pineappleLabel: UILabel! | ||
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| let juiceMaker = JuiceMaker() | ||
| var observations = [NSKeyValueObservation]() | ||
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| let strawberryJuice = Juice(name: "딸기쥬스", ingredients: [.strawberry:16]) | ||
| let bananaJuice = Juice(name: "바나나쥬스", ingredients: [.banana:2]) | ||
| let pineappleJuice = Juice(name: "파인애플쥬스", ingredients: [.pineapple:2]) | ||
| let kiwiJuice = Juice(name: "키위쥬스", ingredients: [.kiwi:3]) | ||
| let mangoJuice = Juice(name: "망고쥬스", ingredients: [.mango:3]) | ||
| let strawberryBananaJuice = Juice(name: "딸바쥬스", ingredients: [.strawberry:10, .banana:1]) | ||
| let mangoKiwiJuice = Juice(name: "망키쥬스", ingredients: [.mango:2, .kiwi:1]) | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| // NotificationCenter.default.addObserver(self, selector: #selector(alertMakingJuiceSuccess(_:)), | ||
| // name: Notification.Name(rawValue: "makeJuiceSuccess"), object: nil) | ||
| // NotificationCenter.default.addObserver(self, selector: #selector(alertMakingJuiceFail), | ||
| // name: Notification.Name(rawValue: "makeJuiceFail"), object: nil) | ||
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| observations = [ | ||
| juiceMaker.fruitStore.observe(\.strawberry, options: [.new]) { _, _ in | ||
| self.updateUILabel(.strawberry) | ||
| }, | ||
| juiceMaker.fruitStore.observe(\.banana, options: [.new]) { _, _ in | ||
| self.updateUILabel(.banana) | ||
| }, | ||
| juiceMaker.fruitStore.observe(\.pineapple, options: [.new]) { _, _ in | ||
| self.updateUILabel(.pineapple) | ||
| }, | ||
| juiceMaker.fruitStore.observe(\.kiwi, options: [.new]) { _, _ in | ||
| self.updateUILabel(.kiwi) | ||
| }, | ||
| juiceMaker.fruitStore.observe(\.mango, options: [.new]) { _, _ in | ||
| self.updateUILabel(.mango) | ||
| } | ||
| ] | ||
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| for fruit in Fruit.allCases { | ||
| updateUILabel(fruit) | ||
| } | ||
| } | ||
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| @IBAction func strawberryJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(strawberryJuice) | ||
| } | ||
| @IBAction func bananaJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(bananaJuice) | ||
| } | ||
| @IBAction func mangoJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(pineappleJuice) | ||
| } | ||
| @IBAction func kiwiJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(kiwiJuice) | ||
| } | ||
| @IBAction func pineappleJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(pineappleJuice) | ||
| } | ||
| @IBAction func strawberryBananaJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(strawberryBananaJuice) | ||
| } | ||
| @IBAction func mangoKiwiJuiceOrder(_ sender: Any) { | ||
| juiceMaker.makeJuice(mangoKiwiJuice) | ||
| } | ||
| } | ||
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| extension MainViewController { | ||
| func updateUILabel(_ fruit: Fruit) { | ||
| let currentStock = String(juiceMaker.fruitStore.currentStock(fruit)) | ||
| switch fruit { | ||
| case .strawberry: | ||
| strawberryLabel.text = currentStock | ||
| case .banana: | ||
| bananaLabel.text = currentStock | ||
| case .pineapple: | ||
| pineappleLabel.text = currentStock | ||
| case .kiwi: | ||
| kiwiLabel.text = currentStock | ||
| case .mango: | ||
| mangoLabel.text = currentStock | ||
| } | ||
| } | ||
| @objc func alertMakingJuiceSuccess(_ notification: Notification) { | ||
| guard let userInfo = notification.userInfo else { | ||
| print("userInfo 에러"); return | ||
| } | ||
| guard let userInfoValue = userInfo["쥬스이름"], let juiceName = userInfoValue as? String else { | ||
| print("userInfoValue 에러"); return | ||
| } | ||
| let alert = UIAlertController(title: "\(juiceName) 쥬스 나왔습니다! 맛있게 드세요!", message: nil, preferredStyle: .alert) | ||
| let confirmAction = UIAlertAction(title: "감사합니다.", style: .default) | ||
| alert.addAction(confirmAction) | ||
| present(alert, animated: true, completion: nil) | ||
| } | ||
| @objc func alertMakingJuiceFail() { | ||
| let alert = UIAlertController(title: "재료가 모자라요. 재고를 수정할까요?", message: nil, preferredStyle: .alert) | ||
| let confirmAction = UIAlertAction(title: "예", style: .default){ _ in | ||
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| } | ||
| let cancelAction = UIAlertAction(title: "아니오", style: .default) | ||
| alert.addAction(confirmAction) | ||
| alert.addAction(cancelAction) | ||
| present(alert, animated: true, completion: nil) | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| // | ||
| // ModifiyViewController.swift | ||
| // JuiceMaker | ||
| // | ||
| // Created by 김태영 on 2021/06/14. | ||
| // | ||
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| import UIKit | ||
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| class ModifiyViewController: UIViewController { | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| } | ||
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| } |
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notification을 통해서 객체의 상태값을 받고있어서 옵셔널 언래핑이나 타입 체크 코드가 필요한 상황으로 보이는데,
notification이 아닌 다른 방식으로 구현한다면 이런 guard문은 없어져도 되는 코드가 되겠네요!
그리고 guard문은 원하는 조건이 아닐 때 해당 블럭을(지금으로 치면 함수겠죠?) 다 타지 않고 리턴해버려야 할 때 주로 쓰게되는데요
현재 구조에서는 userInfo값의 오류때문에 에러처리를 할 필요는 없어보입니다!