import hashlib
import json
import os
from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
os.environ.setdefault('HF_HOME', str(ROOT / '.cache/huggingface'))
os.environ.setdefault('TOKENIZERS_PARALLELISM', 'false')
os.environ.setdefault('OMP_NUM_THREADS', '4')
os.environ.setdefault('MPLCONFIGDIR', str(ROOT / '.cache/matplotlib'))

SCHEMA = {
    'task_complete': {'prompt': 'Has the task been successfully completed?', 'options': ['false', 'true']},
    'should_retry': {'prompt': 'Should the same failed action be retried without changing it?', 'options': ['false', 'true']},
    'failure_source': {'prompt': 'What is the source of the original reproduced failure?', 'options': ['code', 'environment', 'test', 'dependency', 'unknown']},
    'next_action': {'prompt': 'What action should the agent take next under the diagnostic policy?', 'options': ['inspect_code', 'rerun_tests', 'inspect_environment', 'revert_change', 'escalate']},
    'evidence_sufficient': {'prompt': 'Does exactly one controlled intervention identify the original failure source?', 'options': ['false', 'true']},
}
POLICY = ('Controlled trials each start from the same failing snapshot and change only the named component. '
          'Exactly one repair clearing the original failure identifies its source; zero or multiple clearing repairs mean unknown. '
          'Task complete means latest checks pass AND acceptance was confirmed. Retry unchanged only if incomplete, '
          'the temporary blocker has cleared, and no unchanged retry already failed. Next action: completed => escalate (handoff); '
          'otherwise if retry is warranted or latest checks pass => rerun_tests; '
          'otherwise a code cause with rollback authorized => revert_change; code or test => inspect_code; '
          'environment or dependency => inspect_environment; unknown => escalate.')

def read_rows(split, root='data/v0'):
    return [json.loads(line) for line in (Path(root) / f'{split}.jsonl').read_text().splitlines()]

def save_json(path, data):
    path = Path(path)
    path.parent.mkdir(parents=True, exist_ok=True)
    path.write_text(json.dumps(data, indent=2, allow_nan=False) + '\n')

def digest(path):
    return hashlib.sha256(Path(path).read_bytes()).hexdigest()