#!/usr/bin/env python3
import json, sys
from pathlib import Path

required = ['id','dataset','version','split','language','domain','scenario_type','raw_user_message','normalized_user_intent','intent','constraints','ambiguity','expected_model_behavior','bad_model_behavior','ideal_response','evaluation','metadata']

def validate(path):
    errors = 0
    total = 0
    with open(path, 'r', encoding='utf-8') as f:
        for line_no, line in enumerate(f, 1):
            total += 1
            try:
                obj = json.loads(line)
            except Exception as e:
                print(f'JSON error at line {line_no}: {e}')
                errors += 1
                continue
            missing = [k for k in required if k not in obj]
            if missing:
                print(f'Missing {missing} at line {line_no}')
                errors += 1
    print(f'Validated {total} records from {path}. Errors: {errors}')
    return errors

if __name__ == '__main__':
    if len(sys.argv) < 2:
        print('Usage: python tools/validate_jsonl.py data/train.jsonl')
        raise SystemExit(1)
    raise SystemExit(validate(sys.argv[1]))