import { test } from 'node:test';
import assert from 'node:assert/strict';
import { parseTarget } from '../src/pure.js';

test('parseTarget: integer numbers', () => {
  assert.equal(parseTarget(25), 25);
  assert.equal(parseTarget(25000000), 25_000_000);
  assert.equal(parseTarget(2.5e7), 25_000_000);
});

test('parseTarget: string numbers with commas', () => {
  assert.equal(parseTarget('25'), 25);
  assert.equal(parseTarget('25,000,000'), 25_000_000);
  assert.equal(parseTarget('25,000,000.5'), 25_000_000);
});

test('parseTarget: magnitude suffixes (case-insensitive)', () => {
  assert.equal(parseTarget('25K'), 25_000);
  assert.equal(parseTarget('25m'), 25_000_000);
  assert.equal(parseTarget('1.5B'), 1_500_000_000);
  assert.equal(parseTarget('100t'), 100_000_000_000_000);
});

test('parseTarget: rejects invalid input', () => {
  assert.equal(parseTarget(0), null);
  assert.equal(parseTarget(-1), null);
  assert.equal(parseTarget('abc'), null);
  assert.equal(parseTarget(''), null);
  assert.equal(parseTarget(null), null);
  assert.equal(parseTarget(undefined), null);
  assert.equal(parseTarget('25M.5'), null);
  assert.equal(parseTarget('1.5.5M'), null);
  assert.equal(parseTarget('0'), null);
});