refactor registries to make registration more convenient

app/src/core/registry/Registry.ts

@@ -1,25 +1,42 @@
 export type Constructor<T> = new (...args: any[]) => T;
-export class Registry<Item, Items extends Record<string, object> = Record<string, object>> {
+
+export type RegisterFn<Item> = (unknown: any) => Item;
+
+export class Registry<
+   Item,
+   Items extends Record<string, Item> = Record<string, Item>,
+   Fn extends RegisterFn<Item> = RegisterFn<Item>
+> {
    private is_set: boolean = false;
    private items: Items = {} as Items;
 
-   set<Actual extends Record<string, object>>(items: Actual) {
+   constructor(private registerFn?: Fn) {}
+
+   set<Actual extends Record<string, Item>>(items: Actual) {
       if (this.is_set) {
          throw new Error("Registry is already set");
       }
-      // @ts-ignore
-      this.items = items;
+      this.items = items as unknown as Items;
       this.is_set = true;
 
-      return this as unknown as Registry<Item, Actual>;
+      return this as unknown as Registry<Item, Actual, Fn>;
    }
 
    add(name: string, item: Item) {
-      // @ts-ignore
-      this.items[name] = item;
+      this.items[name as keyof Items] = item as Items[keyof Items];
       return this;
    }
 
+   register(name: string, specific: Parameters<Fn>[0]) {
+      if (this.registerFn) {
+         const item = this.registerFn(specific);
+         this.items[name as keyof Items] = item as Items[keyof Items];
+         return this;
+      }
+
+      return this.add(name, specific);
+   }
+
    get<Name extends keyof Items>(name: Name): Items[Name] {
       return this.items[name];
    }