feat(command): add RemoveById command

app/src/main/kotlin/app/AppInitializer.kt

@@ -6,6 +6,7 @@ import command.commands.Clear
 import command.commands.Exit
 import command.commands.Help
 import command.commands.Info
+import command.commands.RemoveById
 import command.commands.Show
 import command.commands.Update
 import io.IOHandler
@@ -26,5 +27,6 @@ class AppInitializer {
         commandManager.register(Show(io, collectionManager))
         commandManager.register(Info(io, collectionManager))
         commandManager.register(Update(io, collectionManager))
+        commandManager.register(RemoveById(io, collectionManager))
     }
 }

app/src/main/kotlin/command/commands/RemoveById.kt

@@ -0,0 +1,28 @@
+package command.commands
+
+import command.Command
+import io.IOHandler
+import manager.CollectionManager
+
+class RemoveById(
+    private val io: IOHandler,
+    private val collectionManager: CollectionManager,
+) : Command {
+    override val name = "remove_by_id"
+    override val description = "remove element by id"
+
+    override fun execute(args: String) {
+        val id = args.trim().toLongOrNull()
+        if (id == null) {
+            io.println("введите id, к примеру: remove_by_id 5")
+            return
+        }
+
+        if (collectionManager.getCollection().none { it.id == id }) {
+            io.println("элемент с id=$id не найден")
+            return
+        }
+
+        collectionManager.removeById(id)
+    }
+}

app/src/main/kotlin/manager/CollectionManager.kt

@@ -38,10 +38,7 @@ class CollectionManager(
         id: Long,
         newProduct: Product,
     ) {
-        val index =
+        val index = list.indexOfFirst { it.id == id }
-            list.indexOfFirst {
-                it.id == id
-            }
 
         val old = list[index]
 
@@ -56,6 +53,12 @@ class CollectionManager(
         io.println("элемент обновлен")
     }
 
+    fun removeById(id: Long) {
+        val index = list.indexOfFirst { it.id == id }
+        list.removeAt(index)
+        io.println("элемент удален")
+    }
+
     fun getCollection(): LinkedList<Product> = list
 
     fun clear() {