Visual Console Refactor: WIP version of the label item

Former-commit-id: 8a8ef1b789442a566156e726edceb692911222b3

visual_console/src/items/Label.ts

@@ -0,0 +1,31 @@
+import { LinkedVisualConsoleProps, UnknownObject } from "../types";
+import { linkedVCPropsDecoder } from "../lib";
+import Item, { ItemType, ItemProps, itemBasePropsDecoder } from "../Item";
+
+export type LabelProps = {
+  type: ItemType.LABEL;
+} & ItemProps &
+  LinkedVisualConsoleProps;
+
+/**
+ * Build a valid typed object from a raw object.
+ * This will allow us to ensure the type safety.
+ *
+ * @param data Raw object.
+ * @return An object representing the label props.
+ * @throws Will throw a TypeError if some property
+ * is missing from the raw object or have an invalid type.
+ */
+export function labelPropsDecoder(data: UnknownObject): LabelProps | never {
+  return {
+    ...itemBasePropsDecoder(data), // Object spread. It will merge the properties of the two objects.
+    type: ItemType.LABEL,
+    ...linkedVCPropsDecoder(data) // Object spread. It will merge the properties of the two objects.
+  };
+}
+
+export default class Label extends Item<LabelProps> {
+  public createDomElement(): HTMLElement {
+    throw new Error("not implemented");
+  }
+}