import { expect, test } from "bun:test";
import { award, CREDIT_CAP, lossBonus, roundReward, spend, START_CREDITS } from "./economy.ts";

test("a round starts on 800 and nothing goes past 9000", () => {
  expect(START_CREDITS).toBe(800);
  expect(award(8900, 200)).toBe(CREDIT_CAP);
  expect(award(100, -500)).toBe(0);
});

test("the loss bonus rises 1900 / 2400 / 2900 and stops", () => {
  expect(lossBonus(1)).toBe(1900);
  expect(lossBonus(2)).toBe(2400);
  expect(lossBonus(3)).toBe(2900);
  expect(lossBonus(7)).toBe(2900);
});

test("a losing attack that planted keeps the plant bonus on top", () => {
  expect(roundReward(false, 1, false)).toBe(1900);
  expect(roundReward(false, 1, true)).toBe(1900 + 300);
  expect(roundReward(true, 3, false)).toBe(3000);
});

test("a buy you cannot afford is refused, never a debt", () => {
  expect(spend(800, 2900)).toEqual({ ok: false, credits: 800 });
  expect(spend(2900, 2900)).toEqual({ ok: true, credits: 0 });
  expect(spend(800, -100).ok).toBe(false);
  expect(spend(800, Number.NaN).ok).toBe(false);
});