import { describe, expect, test } from "bun:test";
import { sortDetailBreakdown } from "./detail-sort";

describe("sortDetailBreakdown", () => {
  const rows = [
    { name: "beta", calls: 2, total_tokens: 100, quota: 500 },
    { name: "alpha", calls: 5, total_tokens: 100, quota: 300 },
    { name: "gamma", calls: 1, total_tokens: 300, quota: 100 },
  ];

  test("sorts by the selected numeric field without mutating the source rows", () => {
    const sorted = sortDetailBreakdown(rows, "quota", false);

    expect(sorted.map((row) => row.name)).toEqual(["beta", "alpha", "gamma"]);
    expect(rows.map((row) => row.name)).toEqual(["beta", "alpha", "gamma"]);
  });

  test("uses name as a stable tie-breaker", () => {
    const sorted = sortDetailBreakdown(rows, "total_tokens", false);

    expect(sorted.map((row) => row.name)).toEqual(["gamma", "alpha", "beta"]);
  });

  test("preserves subtype fields while sorting breakdown rows", () => {
    const rows = [
      { name: "beta", calls: 2, total_tokens: 100, quota: 500, models: [{ name: "m2", calls: 1, total_tokens: 20, quota: 10 }] },
      { name: "alpha", calls: 5, total_tokens: 200, quota: 300, models: [{ name: "m1", calls: 1, total_tokens: 30, quota: 20 }] },
    ];

    const sorted = sortDetailBreakdown(rows, "total_tokens", false);

    expect(sorted[0].models[0].name).toBe("m1");
    expect(rows[0].models[0].name).toBe("m2");
  });
});