feat(navigation): add Header entity + use-case + mock/payload repos + DI container

packages/navigation/src/application/repositories/header-repository.interface.ts

@@ -0,0 +1,5 @@
+import type { Header } from "../../entities/header";
+
+export interface IHeaderRepository {
+  getHeader(): Promise<Header>;
+}

packages/navigation/src/application/use-cases/get-header.use-case.test.ts

@@ -0,0 +1,23 @@
+import { beforeEach, describe, expect, it } from "vitest";
+import { navigationContainer } from "@/di/container";
+import { NAVIGATION_SYMBOLS } from "@/di/symbols";
+import { MockHeaderRepository } from "@/infrastructure/repositories/mock-header.repository";
+import type { IHeaderRepository } from "@/application/repositories/header-repository.interface";
+import { getHeaderUseCase } from "./get-header.use-case";
+
+describe("getHeaderUseCase", () => {
+  beforeEach(() => {
+    if (navigationContainer.isBound(NAVIGATION_SYMBOLS.IHeaderRepository)) {
+      navigationContainer.unbind(NAVIGATION_SYMBOLS.IHeaderRepository);
+    }
+    navigationContainer
+      .bind<IHeaderRepository>(NAVIGATION_SYMBOLS.IHeaderRepository)
+      .toConstantValue(new MockHeaderRepository());
+  });
+
+  it("returns the seeded header items", async () => {
+    const result = await getHeaderUseCase();
+    expect(result.items.length).toBeGreaterThan(0);
+    expect(result.items[0]?.label).toBe("Home");
+  });
+});

packages/navigation/src/application/use-cases/get-header.use-case.ts

@@ -0,0 +1,11 @@
+import type { Header } from "../../entities/header";
+import { navigationContainer } from "../../di/container";
+import { NAVIGATION_SYMBOLS } from "../../di/symbols";
+import type { IHeaderRepository } from "../repositories/header-repository.interface";
+
+export async function getHeaderUseCase(): Promise<Header> {
+  const repo = navigationContainer.get<IHeaderRepository>(
+    NAVIGATION_SYMBOLS.IHeaderRepository,
+  );
+  return repo.getHeader();
+}