/**
 * rigor-smoke.test.js — verifies the @rigor/core import path works
 * from the lib test directory and that a minimal campaign runs.
 *
 * If this test fails to import or run, none of the property tests below
 * can ship.
 */
import { describe, it } from 'node:test';
import assert from 'node:assert/strict';
import { rigor } from '@rigor/core';

describe('js-rigor smoke', () => {
  it('exports the rigor facade', () => {
    assert.ok(rigor, 'rigor is exported');
    assert.equal(typeof rigor.campaign, 'function');
    assert.equal(typeof rigor.crucible, 'function');
    assert.ok(rigor.gen, 'rigor.gen is available');
  });

  it('runs a minimal campaign and returns a report', async () => {
    const report = await rigor.campaign(
      [
        rigor.fn('abs', (n) => Math.abs(n),
          rigor.args(rigor.gen.int(-100, 100)),
          rigor.metrics({ n: ({ args }) => args[0] }))
      ],
      rigor.crucible([
        rigor.invariant('non-negative', ({ actual }) => actual >= 0),
        rigor.invariant('idempotent', ({ actual, fn }) => fn(actual) === actual)
      ])
    ).run({ seed: 'smoke-minimal-campaign', effort: 200 , artifacts: { dir: '', persist: 'never' }});

    assert.ok(report, 'campaign returns a report');
    assert.equal(typeof report.toTAP, 'function', 'report has toTAP()');
    // The report should have iterated at least once
    assert.ok(report.stats || report.coverage || report.summary,
      'report has stats/coverage/summary');
  });

  it('detects a violated invariant with a minimal failing oracle', async () => {
    const report = await rigor.campaign(
      [
        rigor.fn('alwaysZero', () => 0,
          rigor.args(rigor.gen.int()))
      ],
      rigor.crucible([
        rigor.invariant('equals-one', ({ actual }) => actual === 1)
      ])
    ).run({ seed: 'smoke-violated-invariant', effort: 50 , artifacts: { dir: '', persist: 'never' }});

    // Report shape varies — log it for debugging.
    if (process.env.TEST_DEBUG === '1') {
      console.log('report keys:', Object.keys(report));
      console.log('report.toTAP():', report.toTAP());
    }
    // At minimum the report should have *some* representation of the failure.
    assert.ok(report, 'report returned');
  });
});
