Mega Millions Checker

MegaMillions.swift

import Foundation

extension Array {
    func choose(_ n: Int) -> Array { return Array(shuffled().prefix(n)) }
}

struct Ticket {
    let numbers: [Int]
    let bonus: Int
}

func randomTicket() -> Ticket {
    let numbers = Array(1...70).choose(5).sorted()
    let bonus = Array(1...25).randomElement()!
    return Ticket(numbers: numbers, bonus: bonus)
}

func randomTickets(number: Int = 5) -> [Ticket] {
    var tickets = [Ticket]()
    for _ in 0..<number {
        tickets.append(randomTicket())
    }
    return tickets
}

let ticket1 = randomTickets()
let ticket2 = randomTickets()
let ticket3 = randomTickets()
let ticket4 = randomTickets()

let allTickets = ticket1 + ticket2 + ticket3 + ticket4

let calledTicket = randomTicket()// Ticket(numbers: [15,23,53,65,70], bonus: 7)

var matchingTickets: [(Int, Ticket)] = []

for ticket in allTickets {
    var matchCont = 0
    for number in calledTicket.numbers {
        if ticket.numbers.contains(number) {
            matchCont += 1
        }
    }
    
    if calledTicket.bonus == ticket.bonus {
        matchCont += 1
    }
   
    if matchCont > 0 {
        matchingTickets.append((matchCont, ticket))
    }
    
}

matchingTickets.sort { (first, other) -> Bool in
    return first.0 > other.0
}

let winingTickets = matchingTickets.filter { (matchCount, ticket) -> Bool in
    return matchCount >= 3 || ticket.bonus == calledTicket.bonus
}

if winingTickets.isEmpty {
    print("No winners :(")
}

winingTickets.forEach { (matchCount, ticket) in
    if matchCount == 6 {
        print("Jackpot!!!!!")
    } else if matchCount == 5 && ticket.bonus != calledTicket.bonus {
        print("$1,000,000")
    } else if matchCount == 5 && ticket.bonus == calledTicket.bonus {
        print("$10,000")
    } else if matchCount == 4 && ticket.bonus != calledTicket.bonus {
        print("$500")
    } else if matchCount == 4 && ticket.bonus == calledTicket.bonus {
        print("$200")
    } else if matchCount == 3 {
        print("$10")
    } else if matchCount == 2 && ticket.bonus == calledTicket.bonus {
        print("$4")
    } else if matchCount == 1 && ticket.bonus == calledTicket.bonus {
        print("$2")
    }
}