fix: tweak the oauth scope to be a little bit better

src/seqta/utils/googleCalendar/calendarProvisioning.test.ts

@@ -0,0 +1,59 @@
+import { beforeEach, describe, expect, it, jest } from "@jest/globals";
+
+jest.mock("@/config/googleCalendar", () => ({
+  BSPLUS_GOOGLE_CALENDAR_DESCRIPTION: "desc",
+  BSPLUS_GOOGLE_CALENDAR_NAME: "BetterSEQTA+ Timetable",
+  GOOGLE_CALENDAR_API: "https://www.googleapis.com/calendar/v3",
+}));
+
+import { ensureGoogleAppCalendar } from "./calendarProvisioning";
+
+const fetchMock = jest.fn<typeof fetch>();
+global.fetch = fetchMock as typeof fetch;
+
+function jsonResponse(body: unknown, status = 200): Response {
+  return {
+    ok: status >= 200 && status < 300,
+    status,
+    json: async () => body,
+  } as Response;
+}
+
+describe("ensureGoogleAppCalendar", () => {
+  beforeEach(() => {
+    fetchMock.mockReset();
+  });
+
+  it("reuses a stored calendar id when it still exists", async () => {
+    fetchMock.mockResolvedValueOnce(jsonResponse({ id: "stored-id", summary: "BetterSEQTA+ Timetable" }));
+
+    await expect(ensureGoogleAppCalendar("token", "stored-id")).resolves.toBe("stored-id");
+    expect(fetchMock).toHaveBeenCalledTimes(1);
+  });
+
+  it("finds an existing app calendar by name when stored id is missing", async () => {
+    fetchMock.mockResolvedValueOnce(
+      jsonResponse({
+        items: [{ id: "found-id", summary: "BetterSEQTA+ Timetable" }],
+      }),
+    );
+
+    await expect(ensureGoogleAppCalendar("token")).resolves.toBe("found-id");
+    expect(fetchMock).toHaveBeenCalledWith(
+      "https://www.googleapis.com/calendar/v3/users/me/calendarList",
+      expect.objectContaining({ headers: expect.objectContaining({ Authorization: "Bearer token" }) }),
+    );
+  });
+
+  it("creates a calendar when none exists", async () => {
+    fetchMock
+      .mockResolvedValueOnce(jsonResponse({ items: [] }))
+      .mockResolvedValueOnce(jsonResponse({ id: "new-id" }));
+
+    await expect(ensureGoogleAppCalendar("token")).resolves.toBe("new-id");
+    expect(fetchMock).toHaveBeenCalledWith(
+      "https://www.googleapis.com/calendar/v3/calendars",
+      expect.objectContaining({ method: "POST" }),
+    );
+  });
+});