hw_4

src/main/kotlin/ru/otus/cars/Car.kt

@@ -8,6 +8,7 @@ interface Car : CarInput {
      * Номерной знак
      */
     val plates: Plates
+    val tankMouth: TankMouth
 
     /**
      * Цвет машины

src/main/kotlin/ru/otus/cars/CarInput.kt

@@ -13,4 +13,6 @@ interface CarInput {
      * Руль влево на [degrees] градусов
      */
     fun wheelToLeft(degrees: Int)
+
+    fun fillFuel(liters: Int)
 }

src/main/kotlin/ru/otus/cars/CarOutput.kt

@@ -8,4 +8,5 @@ interface CarOutput {
      * Скажи текущую скорость
      */
     fun getCurrentSpeed(): Int
+    fun getFuelContents(): Int
 }

src/main/kotlin/ru/otus/cars/FuelStation.kt

@@ -0,0 +1,31 @@
+package ru.otus.cars
+
+import kotlin.random.Random
+
+class FuelStation {
+    fun fillUpCar(car: Car) {
+        val fuelType = car.tankMouth.getFuelType()
+        val fuelTypeMessage = when (fuelType) {
+            FuelType.PETROL -> "Заправка бензином"
+            FuelType.LPG -> "Заправка газом"
+        }
+
+        try {
+            println(fuelTypeMessage)
+            car.fillFuel(Random.nextInt(50))
+        } catch (e: Exception) {
+            println("Тазы не заправляем!")
+        }
+    }
+
+    fun fillFuelCalList() {
+        val carList = listOf(
+            Vaz2107.build(Car.Plates("123", 77)),
+            Vaz2108.build(Car.Plates("321", 88)),
+            Taz
+        )
+        carList.forEach { it.carOutput.getFuelContents() }
+        carList.forEach { fillUpCar(it) }
+        carList.forEach { it.carOutput.getFuelContents() }
+    }
+}

src/main/kotlin/ru/otus/cars/FuelType.kt

@@ -0,0 +1,6 @@
+package ru.otus.cars
+
+enum class FuelType {
+    PETROL,
+    LPG
+}

src/main/kotlin/ru/otus/cars/Tank.kt

@@ -0,0 +1,11 @@
+package ru.otus.cars
+
+class Tank {
+    private var fuelAmount: Int = 0
+
+    fun getContents() = fuelAmount
+
+    fun receiveFuel(liters: Int) {
+        fuelAmount += liters
+    }
+}

src/main/kotlin/ru/otus/cars/TankMouth.kt

@@ -0,0 +1,45 @@
+package ru.otus.cars
+
+interface TankMouth {
+    fun open()
+    fun close()
+    fun getFuelType(): FuelType
+    fun fillFuel(liters: Int)
+}
+
+class PetrolMouth(private val tank: Tank) : TankMouth {
+    override fun open() {
+        println("Крышка бака открыта (бензин)")
+    }
+
+    override fun close() {
+        println("Крышка бака закрыта (бензин)")
+    }
+
+    override fun getFuelType() = FuelType.PETROL
+    override fun fillFuel(liters: Int) {
+        open()
+        tank.receiveFuel(liters)
+        println("Заправлено $liters л бензина")
+        close()
+    }
+}
+
+class LpgMouth(private val tank: Tank) : TankMouth {
+    override fun open() {
+        println("Крышка бака открыта (газ)")
+    }
+
+    override fun close() {
+        println("Крышка бака закрыта (газ)")
+    }
+
+    override fun getFuelType() = FuelType.LPG
+
+    override fun fillFuel(liters: Int) {
+        open()
+        tank.receiveFuel(liters)
+        println("Заправлено $liters л газа")
+        close()
+    }
+}

src/main/kotlin/ru/otus/cars/Taz.kt

@@ -1,6 +1,8 @@
 package ru.otus.cars
 
-object Taz: Car {
+import kotlin.random.Random
+
+object Taz : Car {
     /**
      * Номерной знак
      */
@@ -36,4 +38,20 @@ object Taz: Car {
     override fun wheelToLeft(degrees: Int) {
         throw NotImplementedError("Руля нет")
     }
+
+    override fun fillFuel(liters: Int) {
+        throw IllegalArgumentException("бак таза взорвался(")
+    }
+
+    override val tankMouth: TankMouth = getRandomMouth()
+
+    private fun getRandomMouth(): TankMouth {
+        val fuelTypes = FuelType.entries
+        val randomType = fuelTypes[Random.nextInt(fuelTypes.size)]
+
+        return when (randomType) {
+            FuelType.PETROL -> PetrolMouth(Tank())
+            FuelType.LPG -> LpgMouth(Tank())
+        }
+    }
 }

src/main/kotlin/ru/otus/cars/Vaz2107.kt

@@ -5,7 +5,7 @@ import kotlin.random.Random
 /**
  * Семёрочка
  */
-class Vaz2107 private constructor(color: String) : VazPlatform(color) {
+class Vaz2107 private constructor(color: String, override val tankMouth: TankMouth) : VazPlatform(color) {
     /**
      * Сам-себе-сборщик ВАЗ 2107.
      */
@@ -17,7 +17,13 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
             }
         }
 
-        override fun build(plates: Car.Plates): Vaz2107 = Vaz2107("Зеленый").apply {
+        override fun build(plates: Car.Plates): Vaz2107 =
+            Vaz2107(
+                color = "Зеленый",
+                tankMouth = LpgMouth(
+                    tank = Tank()
+                )
+            ).apply {
             this.engine = getRandomEngine()
             this.plates = plates
         }
@@ -67,12 +73,20 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
      */
     override val carOutput: CarOutput = VazOutput()
 
+    override fun fillFuel(liters: Int) {
+        tankMouth.fillFuel(liters)
+    }
+
     /**
      * Имеет доступ к внутренним данным ЭТОГО ВАЗ-2107!
      */
     inner class VazOutput : CarOutput {
         override fun getCurrentSpeed(): Int {
             return [email protected]
         }
+
+        override fun getFuelContents(): Int {
+            return [email protected]().getFuelContents()
+        }
     }
 }

src/main/kotlin/ru/otus/cars/Vaz2108.kt

@@ -5,7 +5,7 @@ import kotlin.random.Random
 /**
  * Восьмерка
  */
-class Vaz2108 private constructor(color: String) : VazPlatform(color) {
+class Vaz2108 private constructor(color: String, override val tankMouth: TankMouth) : VazPlatform(color) {
     /**
      * Сам-себе-сборщик ВАЗ 2108.
      */
@@ -18,7 +18,12 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
             }
         }
 
-        override fun build(plates: Car.Plates): Vaz2108 = Vaz2108("Красный").apply {
+        override fun build(plates: Car.Plates): Vaz2108 = Vaz2108(
+            color = "Красный",
+            tankMouth = PetrolMouth(
+                tank = Tank()
+            )
+        ).apply {
             this.engine = getRandomEngine()
             this.plates = plates
         }
@@ -71,12 +76,20 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
      */
     override val carOutput: CarOutput = VazOutput()
 
+    override fun fillFuel(liters: Int) {
+        tankMouth.fillFuel(liters)
+    }
+
     /**
      * Имеет доступ к внутренним данным ЭТОГО ВАЗ-2108!
      */
     inner class VazOutput : CarOutput {
         override fun getCurrentSpeed(): Int {
             return [email protected]
         }
+
+        override fun getFuelContents(): Int {
+            return [email protected]().getFuelContents()
+        }
     }
 }

src/main/kotlin/ru/otus/cars/main.kt

@@ -16,6 +16,9 @@ fun main() {
     techChecks()
     println("\n===> Taz...")
     println(Taz.color)
+
+    val fuelStation = FuelStation()
+    fuelStation.fillFuelCalList()
 }
 
 fun driveCars() {