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

import { applyTeamFields, limitPresets, parseTeamPresets } from "./team-tools";

const team = (id: string, title = id) => ({
  clientId: id, title, rotationSeconds: "20", combo: "E > Q",
  members: [1, 2, 3, 4].map((n) => ({ characterKey: `${id}-${n}`, weaponKey: null, artifactKey: null, secondArtifactKey: null, constellation: 0, refinement: 1, damage: String(n) })),
});

describe("team bulk tools", () => {
  it("copies selected fields without changing titles or mutating source", () => {
    const source = team("source", "Source");
    const target = team("target", "Keep title");
    const result = applyTeamFields([source, target], "source", new Set(["target"]), ["loadout"]);
    expect(result[1].title).toBe("Keep title");
    expect(result[1].members.map((member) => member.characterKey)).toEqual(["source-1", "source-2", "source-3", "source-4"]);
    expect(result[1].members.map((member) => member.damage)).toEqual(["1", "2", "3", "4"]);
    expect(source.members[0].characterKey).toBe("source-1");
  });

  it("does not apply to the source team", () => {
    const source = team("source");
    expect(applyTeamFields([source], "source", new Set(["source"]), ["combo"])).toEqual([source]);
  });

  it("copies one field for one character slot only", () => {
    const source = team("source");
    const target = team("target");
    source.members[0] = { ...source.members[0], characterKey: "mavuika", refinement: 1 };
    target.members[0] = { ...target.members[0], characterKey: "keep-character", refinement: 5 };

    const result = applyTeamFields(
      [source, target],
      "source",
      new Set(["target"]),
      ["member:0:refinement"],
    );

    expect(result[1].members[0].refinement).toBe(1);
    expect(result[1].members[0].characterKey).toBe("keep-character");
    expect(result[1].members.slice(1)).toEqual(target.members.slice(1));
  });

  it("deduplicates and limits presets", () => {
    const presets = Array.from({ length: 7 }, (_, index) => ({ id: String(index), name: String(index), createdAt: String(index), team: { ...team(String(index)), clientId: undefined as never } }));
    expect(limitPresets([presets[0], presets[0], ...presets.slice(1)])).toHaveLength(5);
  });

  it("rejects malformed preset storage", () => {
    expect(parseTeamPresets("not-json")).toEqual([]);
    expect(parseTeamPresets(JSON.stringify([{ id: 1 }]))).toEqual([]);
  });
});