Generic Fryer

src/main/tv/codely/scala_intro_examples/lesson_07_generics/exercise_solutions/joan_miralles/BaconFryer.scala

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+package tv.codely.scala_intro_examples.lesson_07_generics.exercise_solutions.joan_miralles
+
+import tv.codely.scala_intro_examples.lesson_07_generics.exercise_solutions.joan_miralles.Ingredients.{
+  Bacon,
+  FriedBacon
+}
+
+import scala.concurrent.duration._
+import scala.concurrent.{ExecutionContext, Future}
+
+final class BaconFryer(implicit ec: ExecutionContext) extends Fryer[Bacon, FriedBacon] {
+  private val minFryTime = 1.second
+
+  override def fry(bacon: Bacon): Future[FriedBacon] = Future {
+    Thread.sleep(minFryTime.toMillis)
+
+    FriedBacon(bacon)
+  }
+}

src/main/tv/codely/scala_intro_examples/lesson_07_generics/exercise_solutions/joan_miralles/EggFryer.scala

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+package tv.codely.scala_intro_examples.lesson_07_generics.exercise_solutions.joan_miralles
+
+import tv.codely.scala_intro_examples.lesson_07_generics.exercise_solutions.joan_miralles.Ingredients.{Egg, FriedEgg}
+
+import scala.concurrent.duration._
+import scala.concurrent.{ExecutionContext, Future}
+
+class EggFryer(implicit ec: ExecutionContext) extends Fryer[Egg, FriedEgg] {
+  private val minFryTime = 6.second
+
+  override def fry(egg: Egg) = Future {
+    Thread.sleep(minFryTime.toMillis)
+
+    FriedEgg(egg)
+  }
+
+}

src/main/tv/codely/scala_intro_examples/lesson_07_generics/exercise_solutions/joan_miralles/Fryer.scala

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+package tv.codely.scala_intro_examples.lesson_07_generics.exercise_solutions.joan_miralles
+
+import scala.concurrent.Future
+
+trait Fryer[IngredientType, FriedIngredientType] {
+  def fry(ingredientType: IngredientType): Future[FriedIngredientType]
+}

src/main/tv/codely/scala_intro_examples/lesson_07_generics/exercise_solutions/joan_miralles/Ingredients.scala

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+package tv.codely.scala_intro_examples.lesson_07_generics.exercise_solutions.joan_miralles
+
+abstract class Ingredient()
+
+object Ingredients {
+  final case class Egg() extends Ingredient
+  final case class Bacon() extends Ingredient
+  final case class FriedBacon(bacon: Bacon) extends Ingredient
+  final case class FriedEgg(egg: Egg) extends Ingredient
+}