import { describe, expect, it } from "vitest";

import { DAV_AREAS } from "@/worker/dav/areas";
import { expensiveDavRequestArea, findDavArea, isExpensiveDavRequest } from "@/worker/dav/runtime";

describe("DAV runtime registry", () => {
  it("matches registered areas and preserves expensive request area keys", () => {
    expect(findDavArea("/files/", DAV_AREAS)?.name).toBe("files");
    expect(findDavArea("/calendars/default/", DAV_AREAS)?.name).toBe("caldav");
    expect(findDavArea("/addressbooks/default/", DAV_AREAS)?.name).toBe("carddav");
    expect(findDavArea("/principals/me/", DAV_AREAS)?.name).toBe("discovery");
    expect(findDavArea("/not-dav/", DAV_AREAS)).toBeNull();

    expect(expensiveDavRequestArea("/files/a.txt")).toBe("files");
    expect(expensiveDavRequestArea("/calendars/default/")).toBe("calendars");
    expect(expensiveDavRequestArea("/addressbooks/default/")).toBe("addressbooks");
    expect(expensiveDavRequestArea("/principals/me/")).toBe("principals");
    expect(expensiveDavRequestArea("/")).toBe("");
  });

  it("classifies REPORT and Depth infinity PROPFIND as expensive DAV requests", () => {
    expect(isExpensiveDavRequest(new Request("https://dav.example.com/calendars/", { method: "REPORT" }))).toBe(true);
    expect(
      isExpensiveDavRequest(
        new Request("https://dav.example.com/files/", { method: "PROPFIND", headers: { depth: "infinity" } }),
      ),
    ).toBe(true);
    expect(
      isExpensiveDavRequest(
        new Request("https://dav.example.com/files/", { method: "PROPFIND", headers: { depth: "1" } }),
      ),
    ).toBe(false);
  });
});