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

import { newlyDecidedLosers } from "../admin.sports-seasons.$id.events.$eventId.bracket.helpers";

describe("newlyDecidedLosers", () => {
  it("returns losers of matches that were not already complete", () => {
    expect(
      newlyDecidedLosers([
        { wasComplete: false, loserId: "sp-1" },
        { wasComplete: false, loserId: "sp-2" },
      ])
    ).toEqual(["sp-1", "sp-2"]);
  });

  it("drops re-scores of already-complete matches (no re-announce)", () => {
    // sp-1's match just finished; sp-2's match was already complete before this
    // action — only sp-1 is a NEW knockout.
    expect(
      newlyDecidedLosers([
        { wasComplete: false, loserId: "sp-1" },
        { wasComplete: true, loserId: "sp-2" },
      ])
    ).toEqual(["sp-1"]);
  });

  it("skips entries with an unknown loser", () => {
    expect(
      newlyDecidedLosers([
        { wasComplete: false, loserId: null },
        { wasComplete: false, loserId: "sp-3" },
      ])
    ).toEqual(["sp-3"]);
  });

  it("returns an empty array when nothing was newly decided", () => {
    expect(
      newlyDecidedLosers([
        { wasComplete: true, loserId: "sp-1" },
        { wasComplete: true, loserId: "sp-2" },
      ])
    ).toEqual([]);
    expect(newlyDecidedLosers([])).toEqual([]);
  });
});