refactor(api): extract utilization category support

packages/api/src/__tests__/utilization-category-support.test.ts

@@ -0,0 +1,73 @@
+import { TRPCError } from "@trpc/server";
+import { describe, expect, it, vi } from "vitest";
+import {
+  assertUtilizationCategoryCodeAvailable,
+  buildUtilizationCategoryCreateData,
+  buildUtilizationCategoryListWhere,
+  buildUtilizationCategoryUpdateData,
+  unsetDefaultUtilizationCategory,
+} from "../router/utilization-category-support.js";
+
+describe("utilization category support", () => {
+  it("builds list filters", () => {
+    expect(buildUtilizationCategoryListWhere({ isActive: true })).toEqual({
+      isActive: true,
+    });
+  });
+
+  it("rejects duplicate codes outside the ignored id", async () => {
+    const db = {
+      utilizationCategory: {
+        findUnique: vi.fn().mockResolvedValue({ id: "util_existing", code: "CHARGEABLE" }),
+      },
+    } as never;
+
+    await expect(assertUtilizationCategoryCodeAvailable(db, "CHARGEABLE")).rejects.toBeInstanceOf(TRPCError);
+  });
+
+  it("unsets the current default with and without an ignored id", async () => {
+    const db = {
+      utilizationCategory: {
+        updateMany: vi.fn().mockResolvedValue({ count: 1 }),
+      },
+    } as never;
+
+    await unsetDefaultUtilizationCategory(db);
+    await unsetDefaultUtilizationCategory(db, "util_keep");
+
+    expect(db.utilizationCategory.updateMany).toHaveBeenNthCalledWith(1, {
+      where: { isDefault: true },
+      data: { isDefault: false },
+    });
+    expect(db.utilizationCategory.updateMany).toHaveBeenNthCalledWith(2, {
+      where: { isDefault: true, id: { not: "util_keep" } },
+      data: { isDefault: false },
+    });
+  });
+
+  it("builds create and sparse update payloads", () => {
+    expect(buildUtilizationCategoryCreateData({
+      code: "CHARGEABLE",
+      name: "Chargeable",
+      description: "Revenue-generating project work",
+      sortOrder: 1,
+      isDefault: true,
+    })).toEqual({
+      code: "CHARGEABLE",
+      name: "Chargeable",
+      description: "Revenue-generating project work",
+      sortOrder: 1,
+      isDefault: true,
+    });
+
+    expect(buildUtilizationCategoryUpdateData({
+      description: null,
+      isActive: false,
+      isDefault: false,
+    })).toEqual({
+      description: null,
+      isActive: false,
+      isDefault: false,
+    });
+  });
+});