import test from "node:test";
import assert from "node:assert/strict";
import { cashBalance, hasOpening, parseAmount } from "./cash-float";

test("balance is opening + top-ups minus slips, to the cent", () => {
  assert.equal(cashBalance([{ kind: "opening", amount: 1000 }, { kind: "expense", amount: 250.1 }, { kind: "expense", amount: 0.2 }, { kind: "topup", amount: 100 }]), 849.7);
  assert.equal(cashBalance([]), 0);
});
test("a card with no opening entry is not started", () => {
  assert.equal(hasOpening([{ kind: "expense", amount: 5 }]), false);
  assert.equal(hasOpening([{ kind: "opening", amount: 0.01 }]), true);
});
test("amounts accept South African typing and refuse junk", () => {
  assert.equal(parseAmount("1 250,50"), 1250.5);
  assert.equal(parseAmount("12.345"), 12.35);
  for (const bad of ["", "0", "-5", "abc", "99999999"]) assert.equal(parseAmount(bad), null, bad);
});