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

import {
  accentGradient,
  normalizeHex,
  overviewFileName,
  weaponTypeIconPath,
} from "@/lib/overview-image";

describe("overview image generator", () => {
  it("normalizes valid colors and rejects invalid colors", () => {
    expect(normalizeHex(" #e9a51a ")).toBe("#E9A51A");
    expect(normalizeHex("#fff")).toBeNull();
    expect(normalizeHex("orange")).toBeNull();
  });

  it("creates a deterministic accent gradient", () => {
    expect(accentGradient("#E9A51A")).toBe(
      "linear-gradient(90deg, #CD9117 0%, #E9A51A 25%, #F1C56A 50%, #E9A51A 75%, #CD9117 100%)",
    );
    expect(accentGradient("#FF0000", "#0000FF")).toBe(
      "linear-gradient(90deg, #E00000 0%, #FF0000 25%, #AC59AC 50%, #0000FF 75%, #0000E0 100%)",
    );
  });

  it("maps every catalog weapon type to a PNG", () => {
    expect(weaponTypeIconPath("WEAPON_SWORD_ONE_HAND")).toBe(
      "/icon/weapon-types/sword.png",
    );
    expect(weaponTypeIconPath("WEAPON_CLAYMORE")).toBe(
      "/icon/weapon-types/claymore.png",
    );
    expect(weaponTypeIconPath("WEAPON_POLE")).toBe(
      "/icon/weapon-types/polearm.png",
    );
    expect(weaponTypeIconPath("WEAPON_BOW")).toBe(
      "/icon/weapon-types/bow.png",
    );
    expect(weaponTypeIconPath("WEAPON_CATALYST")).toBe(
      "/icon/weapon-types/catalyst.png",
    );
    expect(weaponTypeIconPath(null)).toBeNull();
  });

  it("creates a safe PNG filename", () => {
    expect(overviewFileName("Traveler / Pyro", "Main DPS")).toBe(
      "overview-Traveler-Pyro-main-dps.png",
    );
  });

});