gistfile1.java

#!/bin/sh
exec scala "$0" "$@"
!#
import collection.mutable.ListBuffer

val random = new Random()
def sumPizzas(list:ListBuffer[Pizza]):Int = { list.foldLeft(0)(_ + _.totalPrice) }

object Orderer {
  val maximumPrice = 1200
  val hungerFactor = 0.4
  val sourcreamPrice = 20

  def apply(numberOfPeople:Int) {
    val numberOfPizzas = (numberOfPeople * hungerFactor).round.toInt
    val pizzas = pick(numberOfPizzas, maximumPrice)
    println(String.format("%-60s %5s", "Antall pizzaer", pizzas.length.toString))
    println("-" * 66)
    println(pizzas.mkString("\n"))
    println("-" * 66)
    println(String.format("%-60s %5s", "TOTALSUM", sumPizzas(pizzas).toString))
    println("=" * 66)
  }

  def pick(antall: Int, maximumPrice: Int) = {
    val picks = new ListBuffer[Pizza]
    for (i <- 0 to antall) {
      val pizza = Menu.randomPizza
      if (sumPizzas(picks) + pizza.price < maximumPrice) picks += pizza
    }
    picks
  }

}
class Sourcream {
  def price() = 20
  override def toString() = " m/rømmedressing"
}

object Menu {
  val menu = Pizza("Pappas pizza", 159) * 4 ++
          Pizza("Texas", 149) * 3 ++
          Pizza("Blue Hawaii", 149) * 7 ++
          Pizza("Florida", 149) * 4 ++
          Pizza("Buffalo", 149) * 4 ++
          Pizza("Chicken", 149) * 4 ++
          Pizza("New York", 149) * 0 ++
          Pizza("Las Vegas", 149) * 6 ++
          Pizza("Vegetarianer", 149) * 0 ++
          Pizza("Philadelphia", 149) * 4 ++
          Pizza("Hot Chicago", 149) * 7 ++
          Pizza("Hot express", 149) * 5 ++
          Pizza("Kebabpizza spesial", 169) * 3 ++
          Pizza("Pepperoni, biff, skinke, bacon, løk", 159, false) * 9 ++
          Pizza("Pepperoni, biff, skinke, bacon, tacokjøtt", 159, false) * 9 toArray

  def randomPizza() = menu(random.nextInt(menu.length))

  def pick(antall: Int, maximumPrice: Int) = {
    val picks = new ListBuffer[Pizza]
    for (i <- 0 to antall) {
      val rnd = randomPizza
      if (sumPizzas(picks) + rnd.price < maximumPrice) picks += rnd
    }
    picks
  }
}


import java.util.Calendar
import Calendar.{getInstance => today}

object Pizza {
  def apply(name:String, p:Int):Pizza = Pizza(name, p, true)
}
case class Pizza(name:String, price:Int, wp:Boolean) {
  val wednesdayMadnessPrice = 119
  def totalPrice = sourcream.map(_.price).getOrElse(0) +
    (if(today.get(Calendar.DAY_OF_WEEK) == Calendar.WEDNESDAY && wp) wednesdayMadnessPrice else price)

  val sourcream = if(random.nextInt(100) <= 70) Some(new Sourcream()) else None

  override def toString() = String.format("%-60s %5s", name + sourcream.map(_.toString).getOrElse(""), totalPrice.toString )

  def * (w:Int) = for (i <- 0 to w) yield this
}
Orderer(10)