"""Re-run the unchanged PDF oracle and bind its results to final producer bytes."""
from pathlib import Path
import datetime
import hashlib
import json
import shutil
import subprocess
import sys

HERE = Path(__file__).resolve().parent
ROOT = HERE.parents[2]
RAW = ROOT / '.artifacts/phase9'


def sha(path):
    return hashlib.sha256(path.read_bytes()).hexdigest()


def main():
    producer = RAW / 'ordinary-cta-shard-1-exit.json'
    assert json.loads(producer.read_text(encoding='utf-8-sig'))['exitCode'] == 0
    sources = [ROOT / 'scripts/verify-cv-fidelity.py', RAW / 'ordinary-cta-shard-1.json', producer]
    for name, count in [('fidelity', 16), ('settings-fidelity', 8)]:
        folder = RAW / name
        if name == 'settings-fidelity':
            inputs = [json.loads(p.read_text(encoding='utf-8')) for p in sorted(folder.glob('*-measurements.json'))]
            assert len(inputs) == 4
            merged = dict(browserVersion=inputs[0]['browserVersion'], fixtures=[f for data in inputs for f in data['fixtures']])
            (folder / 'measurements.json').write_text(json.dumps(merged, indent=2), encoding='utf-8')
        fixtures = json.loads((folder / 'measurements.json').read_text(encoding='utf-8'))['fixtures']
        assert len(fixtures) == len({f['fixture'] for f in fixtures}) == count
        sources.append(folder / 'measurements.json')
        sources.extend(sorted(folder.glob('*-measurements.json')))
        for fixture in fixtures:
            sources.append(folder / fixture['fixture'] / 'export.pdf')
            sources.extend(sorted((folder / fixture['fixture']).glob('preview-*.png')))
    sources = sorted(set(sources))
    before = {p.relative_to(ROOT).as_posix(): sha(p) for p in sources}
    commands = []
    outputs = {}
    for name in ['fidelity', 'settings-fidelity']:
        command = ['rtk', 'proxy', sys.executable, 'scripts/verify-cv-fidelity.py', str(RAW / name)]
        with (RAW / f'{name}-oracle.log').open('w', encoding='utf-8') as log:
            result = subprocess.run(command, cwd=ROOT, stdout=log, stderr=subprocess.STDOUT, check=True)
        commands.append(dict(command=command, exitCode=result.returncode))
        target = HERE / 'p9-05/evidence' / f'{name}-results.json'
        shutil.copyfile(RAW / name / 'fidelity-results.json', target)
        outputs[target.relative_to(ROOT).as_posix()] = sha(target)
    assert before == {p.relative_to(ROOT).as_posix(): sha(p) for p in sources}
    record = dict(finishedUtc=datetime.datetime.now(datetime.timezone.utc).isoformat(), inputs=before, outputs=outputs, commands=commands)
    (HERE / 'p9-05/evidence/native-document-provenance.json').write_text(json.dumps(record, indent=2) + '\n', encoding='utf-8')
    print('Unchanged native oracle passed on final producer inputs; hashes stable.')


if __name__ == '__main__':
    main()