/*

 Copyright (C) 2018 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Implements the UI of a calculator. Calls the Calculator class to implement the

         associated operation when tapping a character in the calculator.

*/

import UIKit

import CalculatorKit

class CalcViewController: UIViewController {

    // MARK: - Properties

    var calculator = Calculator()

    @IBOutlet weak var display: UITextField!

    // MARK: - View Life Cycle

    override func viewDidLoad() {

        super.viewDidLoad()

    }

    // MARK: - Handle Tapped Character

    @IBAction func tap(_ sender: UIButton) {

        if let label = sender.titleLabel?.text {

            do {

                try calculator.input(label)

                display.text = calculator.displayValue

            } catch let error {

                print("\(error.localizedDescription)")

            }

        }

    }

}