#!/usr/bin/env python3
"""Does the judge actually FAIL when the artifact lies?

A verdict that cannot go nonzero is a tautology. This plants a real defect --
rewriting the runner's PASS to UNVERIFIED -- and asserts the judge exits
nonzero. Exit 0 == the judge has teeth.
"""
import os
import subprocess
import sys
import tempfile

ART = os.path.join(os.path.dirname(os.path.abspath(__file__)), "proveit.py")
JUDGE = os.path.abspath(__file__)

src = open(ART, encoding="utf-8").read()
# Plant the lie: the status domain check must now see UNVERIFIED.
mutated = src.replace('status="PASS" if (ok and measured) else "FAIL"',
                      'status="UNVERIFIED" if (ok and measured) else "FAIL"')
assert mutated != src, "mutation did not apply -- test is invalid"

tmp = tempfile.mkdtemp(prefix="proveit-mut-")
bad = os.path.join(tmp, "proveit.py")
open(bad, "w", encoding="utf-8").write(mutated)

# run the judge against the mutated artifact by pointing ART at it
judge_src = open(JUDGE, encoding="utf-8").read().replace(
    'ART = "/root/.hermes/wizard-outputs/null/proveit.py"', 'ART = %r' % bad)
badjudge = os.path.join(tmp, "_judge.py")
open(badjudge, "w", encoding="utf-8").write(judge_src)

p = subprocess.run([sys.executable, badjudge], capture_output=True, text=True)
print("mutated-artifact judge exit code:", p.returncode)
print("--- judge output (tail) ---")
print("\n".join(p.stdout.strip().splitlines()[-6:]))

if p.returncode == 0:
    print()
    print("TOOTHLESS: judge passed a mutated artifact -> verdict is a tautology")
    sys.exit(1)
print()
print("TEETH OK: judge rejected the mutated artifact (exit %d)" % p.returncode)
sys.exit(0)