"""Q247 targeted presence-check mutant; run only in an approved test slot."""
import hashlib
import os
from pathlib import Path
import subprocess

root = Path(__file__).resolve().parents[4]
source = root / 'packages/business/src/business.mjs'
fixed = source.read_bytes()
needle = b'Object.hasOwn(document, "tracker") ? checkTracker(document.tracker, file) : null'
assert fixed.count(needle) == 1
mutant = fixed.replace(needle, b'checkTracker(document.tracker, file)')
try:
    source.write_bytes(mutant)
    result = subprocess.run([
        'timeout', '-k', '10', '90', 'node', '--test', '--test-reporter=tap',
        '--test-name-pattern=Q247: omitting tracker',
        'packages/business/tests/optional-tracker.test.mjs',
    ], cwd=root, env=os.environ, text=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    Path(__file__).with_suffix('.log').write_text(result.stdout)
    print(f'presence mutant: exit {result.returncode}', flush=True)
    assert result.returncode == 1, result.stdout
    assert '# fail 1\n' in result.stdout and 'tracker' in result.stdout, result.stdout
finally:
    source.write_bytes(fixed)
    assert source.read_bytes() == fixed
    print('restored sha256 ' + hashlib.sha256(fixed).hexdigest(), flush=True)