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

import { constellationChartRows } from "@/lib/guides/export-image";

describe("guide image downloads", () => {
  it("orders constellation levels, adds C0, and scales against the maximum", () => {
    const rows = constellationChartRows([
      { level: 1, cumulativePercent: "117", isGreat: false },
      { level: 6, cumulativePercent: "234", isGreat: true },
    ]);

    expect(rows.slice(0, 2)).toEqual([
      { level: 6, percent: 234, isGreat: true, widthPercent: 100 },
      { level: 1, percent: 117, isGreat: false, widthPercent: 50 },
    ]);
    expect(rows[2]).toMatchObject({
      level: 0,
      percent: 100,
      isGreat: false,
    });
    expect(rows[2].widthPercent).toBeCloseTo(100 / 2.34);
  });

  it("uses 100% as the minimum constellation chart scale", () => {
    expect(
      constellationChartRows([
        { level: 2, cumulativePercent: "80", isGreat: false },
      ]),
    ).toEqual([
      { level: 2, percent: 80, isGreat: false, widthPercent: 80 },
      { level: 0, percent: 100, isGreat: false, widthPercent: 100 },
    ]);
  });
});