Design-Patterns/src/main/kotlin/Command/base/Cart.kt at 917739544c27c2cf20196d40dd2e657300093455 · CloudCoders/Design-Patterns · GitHub

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package Command.base

import Decorator.littlekai.base.IngredientDecorator
import Decorator.littlekai.base.Noodles
import Decorator.littlekai.base.SauceDecorator
import Decorator.littlekai.ingredients.Chicken
import Decorator.littlekai.ingredients.Peanuts
import Decorator.littlekai.ingredients.Pork
import Decorator.littlekai.ingredients.Tuna
import Decorator.littlekai.sauces.BittersweetSauce
import Decorator.littlekai.sauces.RedPepperSauce
import Decorator.littlekai.sauces.SateSauce
import Decorator.littlekai.sauces.TeriyakiSauce
import Factory.base.NoodlesFactory
import java.util.*

open class Cart(private val scanner: Scanner) {

  private lateinit var noodles: Noodles

  fun chooseNoodles() {
    var noodlesChoice: Int = 0
    while (!(1..3).contains(noodlesChoice)) {
      println("> Choose your noodles!\n")
      println("1> EggNoodles:    3.75 $")
      println("2> UdonNoodles:   4.00 $")
      println("3> WheatNoodles:  3.50 $")
      print("> ")
      noodlesChoice = scanner.nextInt()
    }
    println()

    val noodlesFactory = NoodlesFactory()
    noodles = noodlesFactory.getNoodles(noodlesChoice)
  }

  open fun chooseIngredient() {
    var ingredientChoice: Int = -1
    while (!(1..4).contains(ingredientChoice)) {
      println("> Choose your ingredient!\n")
      println("1> Chicken: 3.50 $")
      println("2> Peanuts: 2.50 $")
      println("3> Pork:    4.00 $")
      println("4> Tuna:    2.75 $\n")
      print("> ")
      ingredientChoice = scanner.nextInt()
    }
    println()

    when (ingredientChoice) {
      1 -> noodles = Chicken(noodles)
      2 -> noodles = Peanuts(noodles)
      3 -> noodles = Pork(noodles)
      else -> noodles = Tuna(noodles)
    }
  }

  fun chooseSauce() {
    var sauceChoice: Int = -1
    while (!(1..4).contains(sauceChoice)) {
      println("> Choose your sauce!\n")
      println("1> Bittersweet Sauce: 1 out of 4 spiciness")
      println("2> Red Pepper Sauce:  4 out of 4 spiciness")
      println("3> Sate Sauce:        2 out of 4 spiciness")
      println("4> Teriyaki Sauce:    0 out of 4 spiciness\n")
      print("> ")
      sauceChoice = scanner.nextInt()
    }
    println()

    when (sauceChoice) {
      1 -> noodles = BittersweetSauce(noodles)
      2 -> noodles = RedPepperSauce(noodles)
      3 -> noodles = SateSauce(noodles)
      else -> noodles = TeriyakiSauce(noodles)
    }
  }

  fun showPrice() {
    var totalCost = noodles.calculateCost()
    if (noodles is IngredientDecorator) {
      totalCost = (noodles as IngredientDecorator).calculateTotalCost()
    }
    println("> Your order is: $totalCost $")
    if (noodles is SauceDecorator) {
      println("> Spiciness is: ${(noodles as SauceDecorator).SPICINESS} out of 4")
    } else {
      println("> Without sauce")
    }
    println()
  }
}