import { describe, expect, it } from "vitest";
import { createMockDb, testNotFound } from "../../../testing/index";
import { Transaction } from "../generated/kysely-tailordb";
import { InvalidStatusTransitionError, UserNotFoundError } from "../lib/errors.generated";
import { activeUser, inactiveUser, pendingUser } from "../testing/fixtures";
import { run } from "./activateUser";

describe("activateUser", () => {
  it(
    "throws when user does not exist",
    testNotFound(run, { userId: "nonexistent-user" }, UserNotFoundError),
  );

  it("throws when user is already ACTIVE", async () => {
    const { db, spies } = createMockDb<Transaction>();
    spies.select.mockReturnValue(activeUser);

    const result = await run(db, { userId: activeUser.id });
    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(InvalidStatusTransitionError);
    }
  });

  it("throws when user is INACTIVE (use reactivateUser instead)", async () => {
    const { db, spies } = createMockDb<Transaction>();
    spies.select.mockReturnValue(inactiveUser);

    const result = await run(db, { userId: inactiveUser.id });
    expect(result.ok).toBe(false);
    if (!result.ok) {
      expect(result.error).toBeInstanceOf(InvalidStatusTransitionError);
    }
  });

  // Success cases
  it("activates PENDING user to ACTIVE", async () => {
    const { db, spies } = createMockDb<Transaction>();
    const activatedUser = {
      ...pendingUser,
      status: "ACTIVE" as const,
      updatedAt: new Date("2024-01-15T00:00:00.000Z"),
    };

    spies.select.mockReturnValue(pendingUser);
    spies.update.mockReturnValue(activatedUser);

    const result = await run(db, {
      userId: pendingUser.id,
    });

    expect(result.ok).toBe(true);
    if (result.ok) {
      expect(result.value.user.status).toBe("ACTIVE");
      expect(result.value.user.updatedAt).not.toBeNull();
    }
    expect(spies.update).toHaveBeenCalled();
  });
});
