import { ForbiddenException } from "@nestjs/common";
import { FanavaranLocationService } from "./fanavaran-location.service";

describe("FanavaranLocationService branch scope", () => {
  const makerId = "maker-1";
  const reviewerId = "reviewer-1";

  const createService = (makerBranch?: string, reviewerBranch?: string) =>
    new FanavaranLocationService(
      {
        findById: jest.fn().mockResolvedValue(
          makerBranch ? { branchId: makerBranch } : {},
        ),
      } as any,
      {
        findById: jest.fn().mockResolvedValue(
          reviewerBranch ? { branchId: reviewerBranch } : {},
        ),
      } as any,
    );

  it("allows a reviewer to view a file from the same branch", async () => {
    const service = createService("branch-1", "branch-1");

    await expect(
      service.assertMakerReviewerBranchCompatible({
        fileMakerId: makerId,
        fileReviewerId: reviewerId,
      }),
    ).resolves.toBeUndefined();
  });

  it("rejects a reviewer from another branch", async () => {
    const service = createService("branch-1", "branch-2");

    await expect(
      service.assertMakerReviewerBranchCompatible({
        fileMakerId: makerId,
        fileReviewerId: reviewerId,
      }),
    ).rejects.toBeInstanceOf(ForbiddenException);
  });

  it("prefers the immutable case branch snapshot", async () => {
    const service = createService("old-branch", "branch-2");

    await expect(
      service.assertMakerReviewerBranchCompatible({
        fileMakerId: makerId,
        fileReviewerId: reviewerId,
        caseBranchId: "branch-2",
      }),
    ).resolves.toBeUndefined();
  });
});