import { describe, expect, test } from "bun:test";
import { roster, rosterKey } from "../static/roster.js";

const snapshot = (players: unknown[]) => ({
  me: { id: "p3" },
  players,
});

const mate = (id: string, over: Record<string, unknown> = {}) => ({
  id,
  name: id.toUpperCase(),
  agent: "veil",
  hp: 100,
  alive: true,
  mate: true,
  spike: false,
  ...over,
});

describe("the team roster", () => {
  test("is your own side, everybody, seen or not", () => {
    const rows = roster(
      snapshot([mate("p1"), mate("p2"), mate("p3"), mate("p4"), mate("p5"), mate("e1", { mate: false })]),
    );
    expect(rows.length).toBe(5);
    expect(rows.some((r) => r.id === "e1")).toBe(false);
  });

  test("keeps one order whatever order the snapshot arrives in", () => {
    const one = roster(snapshot([mate("p3"), mate("p1"), mate("p2")]));
    const two = roster(snapshot([mate("p2"), mate("p3"), mate("p1")]));
    expect(one.map((r) => r.id)).toEqual(two.map((r) => r.id));
    expect(one.map((r) => r.id)).toEqual(["p1", "p2", "p3"]);
  });

  test("marks the dead and gives them no health", () => {
    const rows = roster(snapshot([mate("p1", { alive: false, hp: 37 })]));
    expect(rows[0]!.alive).toBe(false);
    expect(rows[0]!.hp).toBe(0);
  });

  test("clamps a health the server rounded past the ends", () => {
    expect(roster(snapshot([mate("p1", { hp: 140 })]))[0]!.hp).toBe(100);
    expect(roster(snapshot([mate("p1", { hp: -5 })]))[0]!.hp).toBe(0);
  });

  test("knows which row is you, and who has the spike", () => {
    const rows = roster(snapshot([mate("p1"), mate("p3", { spike: true })]));
    expect(rows.find((r) => r.id === "p3")!.mine).toBe(true);
    expect(rows.find((r) => r.id === "p3")!.spike).toBe(true);
    expect(rows.find((r) => r.id === "p1")!.mine).toBe(false);
  });

  test("no snapshot is no rows, not a crash", () => {
    expect(roster(null)).toEqual([]);
  });

  test("the key changes when anything on the panel changes, and not otherwise", () => {
    const before = roster(snapshot([mate("p1", { hp: 80 })]));
    expect(rosterKey(before)).toBe(rosterKey(roster(snapshot([mate("p1", { hp: 80 })]))));
    expect(rosterKey(before)).not.toBe(rosterKey(roster(snapshot([mate("p1", { hp: 40 })]))));
    expect(rosterKey(before)).not.toBe(rosterKey(roster(snapshot([mate("p1", { hp: 80, alive: false })]))));
  });
});