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

import type { SkillView } from "@/lib/api/types";
import { groupByScope, scopeLabel, tierLabel } from "./skills";

const skill = (over: Partial<SkillView>): SkillView => ({
  name: "x",
  scope: "builtin",
  tier: "analyst",
  ...over,
});

describe("scopeLabel / tierLabel", () => {
  it("maps known values, passes through unknown", () => {
    expect(scopeLabel("builtin")).toBe("内置");
    expect(scopeLabel("mystery")).toBe("mystery");
    expect(tierLabel("writer")).toBe("写手");
    expect(tierLabel("xl")).toBe("xl");
  });
});

describe("groupByScope", () => {
  it("groups by scope in first-seen order, preserves within-group order", () => {
    const skills: SkillView[] = [
      skill({ name: "a", scope: "builtin" }),
      skill({ name: "b", scope: "custom" }),
      skill({ name: "c", scope: "builtin" }),
    ];
    const groups = groupByScope(skills);
    expect(groups.map((g) => g.scope)).toEqual(["builtin", "custom"]);
    expect(groups[0].skills.map((s) => s.name)).toEqual(["a", "c"]);
    expect(groups[1].skills.map((s) => s.name)).toEqual(["b"]);
  });

  it("handles undefined", () => {
    expect(groupByScope(undefined)).toEqual([]);
  });
});