import { ObjectId } from "mongodb";
import {
  buildSimpleQuery,
  buildDateRangeFilter,
} from "../subscriptions.getters.utils";
import { SimpleSubscriptionFilter } from "../subscriptions.types";

describe("subscriptions.getters.utils", () => {
  describe("buildSimpleQuery", () => {
    it("returns empty query when filter is empty", () => {
      const filter: SimpleSubscriptionFilter = {};
      const result = buildSimpleQuery(filter);
      expect(result).toEqual({});
    });

    it("converts _id string to ObjectId", () => {
      const id = "507f1f77bcf86cd799439011";
      const filter: SimpleSubscriptionFilter = { _id: id };
      const result = buildSimpleQuery(filter);
      expect(result._id).toBeInstanceOf(ObjectId);
      expect((result._id as ObjectId).toHexString()).toBe(id);
    });

    it("includes valid simple fields", () => {
      const filter: SimpleSubscriptionFilter = {
        clientId: "abc",
        isActive: true,
      };
      const result = buildSimpleQuery(filter);
      expect(result).toEqual({ clientId: "abc", isActive: true });
    });
  });

  describe("buildDateRangeFilter", () => {
    it("returns a mongo date range filter", () => {
      const from = new Date("2023-01-01");
      const to = new Date("2023-01-02");
      const result = buildDateRangeFilter(from, to);
      expect(result).toEqual({
        $gte: from,
        $lt: to,
      });
    });
  });
});