import { describe, it } from 'node:test';
import assert from 'node:assert/strict';
import { SweepService } from '../src/services/sweep.service.js';

const none = null as any;
const svc = new SweepService(none, none, none, none, none, none, none);

describe('SweepService.parse', () => {
  it('parses /24 bounds', () => {
    const r = svc.parse('10.0.0.0/24');
    assert.equal(svc.ip(r.start), '10.0.0.0');
    assert.equal(svc.ip(r.end), '10.0.0.255');
  });

  it('rejects non-IPv4 CIDRs', () => {
    assert.throws(() => svc.parse('not-a-cidr'));
    assert.throws(() => svc.parse('10.0.0.0/33'));
    assert.throws(() => svc.parse('::1/128'));
  });
});

describe('SweepService.size/ip', () => {
  it('sizes /32 as 1 and /24 as 256', () => {
    assert.equal(svc.size('1.2.3.4/32'), 1);
    assert.equal(svc.size('1.2.3.0/24'), 256);
  });

  it('round-trips ip encoding', () => {
    assert.equal(svc.ip(svc.parse('192.168.1.0/24').start), '192.168.1.0');
  });
});

describe('SweepService.contains', () => {
  it('detects covering ranges', () => {
    const outer = svc.parse('10.0.0.0/8');
    assert.ok(svc.contains(outer, svc.parse('10.1.2.0/24')));
    assert.ok(!svc.contains(svc.parse('10.1.2.0/24'), outer));
  });
});