swift

import Foundation

protocol TaksPerformer {

    func doAThing()

}

class Employee: TaksPerformer {

   let name: String

   var boss: Boss?

init(name: String) { self.name = name

}

   func doAThing() {

        print("\(name) is doing a thing")

} }

class Boss {

    var employee: Employee

   let name: String

init(name: String, employee: Employee) { self.name = name
self.employee = employee employee.boss = self

}

func actLikeABoss() { employee.doAThing()

} }

// 1)

//     A) What is wrong with the current implementation of Boss and Employee,

why is it wrong, and how can we demonstrate that there is an issue?

//

// B) What pattern discussed in class does the Boss - Employee relationship remind you of? Give an example of the discussed pattern.

//

• //      C) Create a Person class that has the following property: 
• //             let name: String 
• //         Now have Employee and Boss inherit from Person // 
• //      D) You realize that there are speciffic tasks you would like an
  employee to perform. All tasks look like this: // func makeCoffe(_ name: String) {

// print("\(name) made coffe")
// }
//
// func writeReport(_ name: String) {

//

//            }

//        Modify Boss, Employee and TaskPerformer in a way that a Boss can be

instantiated with the following constructor:

//            Boss(name: "Bossman", employee: anEmployee, tasks: [makeCoffe,

writeReport])
// The employee instance should perform the tasks.

// 2)

//    Create a small app that takes user input and performs a useful

calculation with that user input
// - Using techniques we learned in class, make sure that absolutely no

input crashes the app.
// - Use layout constraints to make sure the app looks good in

portraint and landscape mode, as well as on small and large devices.

• //  - Use MVC
• //  - Bonus: Write unit tests for your model to make sure no input can
  crash the app.
  // 3) You created a bookshelf.

//     A) How could you modify Shelve with a technique discussed in class so

that you can create Shelve instances that contain

• //         Tools, Dishes or any other kind of object? 
• //      B) Create a function that takes in two shelves of the same type and
  swaps their items
  struct Book {     let title: String
  }
  struct Shelve {     var top: Book
     var center: Book
     var bottom: Book } 

print("\(name) wrote a report")