import test from 'node:test';
import assert from 'node:assert/strict';
import { calculateQuote, parseAmount } from '../src/lib/quote.ts';
test('demo calculation deducts the example fee in currency cents', () => {
  assert.deepEqual(calculateQuote(1, 'BTC', 'EUR'), {
    rate: 57500,
    fee: 575,
    receive: 56925,
    demo: true,
  });
  assert.deepEqual(calculateQuote(2, 'ETH', 'USD'), {
    rate: 2500,
    fee: 50,
    receive: 4950,
    demo: true,
  });
  const q = calculateQuote(123.45, 'USDT', 'EUR');
  assert.equal(q.fee, 1.14);
  assert.equal(q.receive, 112.43);
});
test('accepts decimal comma and eight crypto decimal places', () => {
  assert.equal(parseAmount(' 0,25 '), 0.25);
  assert.equal(parseAmount('0.00000001'), 0.00000001);
  assert.equal(
    calculateQuote(parseAmount('0,25'), 'BTC', 'EUR').receive,
    14231.25,
  );
});
test('rejects ambiguous, malformed, excessive or invalid input', () => {
  for (const value of [
    '',
    '-1',
    '1e3',
    '1,2,3',
    '1.2.3',
    '<script>',
    '0.000000001',
    '1 000',
  ])
    assert.ok(Number.isNaN(parseAmount(value)));
  for (const amount of [0, -1, NaN, Infinity, 1000001])
    assert.throws(() => calculateQuote(amount, 'BTC', 'EUR'), RangeError);
  assert.throws(() => calculateQuote(1, 'BOGUS', 'EUR'), RangeError);
  assert.throws(() => calculateQuote(1, 'BTC', 'BOGUS'), RangeError);
});