/** Which colour a side is handed, and that it keeps it. */
import { expect, test } from "bun:test";
import { ENEMY, enemyColours, makeSides, PALETTE } from "../../static/engine/sides.js";

test("a body with no side wears today's enemy colours, and takes no slot", () => {
  const book = makeSides();
  expect(enemyColours({}, book)).toBe(ENEMY);
  expect(ENEMY).toEqual({ skin: "#d8483f", dot: "#e35d5b", mark: "rgba(235,150,120,0.9)" });
  expect(book.size).toBe(0);
});

test("sides are handed the palette in the order they are first seen, and keep it", () => {
  const book = makeSides();
  const a = enemyColours({ side: "a" }, book);
  const b = enemyColours({ side: "b" }, book);
  const c = enemyColours({ side: "c" }, book);
  expect([a, b, c]).toEqual([PALETTE[0], PALETTE[1], PALETTE[2]]);
  // The first side is the enemy red a two-side game already wears.
  expect(a).toBe(ENEMY);
  expect(enemyColours({ side: "c" }, book)).toBe(c);
  expect(enemyColours({ side: "a" }, book)).toBe(a);
});

test("the palette is all different, and none of it is a mate, the dead or you", () => {
  const all = PALETTE.flatMap((p) => [p.skin, p.dot]);
  expect(new Set(all).size).toBe(all.length);
  for (const taken of ["#3f9fd6", "#4fb3d9", "#eaeaea", "#555a63", "#4a4e57"]) expect(all).not.toContain(taken);
});

test("more sides than colours wrap round rather than fail", () => {
  const book = makeSides();
  for (let i = 0; i < PALETTE.length; i++) enemyColours({ side: `s${i}` }, book);
  expect(enemyColours({ side: "one more" }, book)).toBe(PALETTE[0]);
});