#!/usr/bin/env python3
"""Quick JSON validator - validates JSON files and reports errors."""
import json
import sys
from pathlib import Path


def validate_json_file(filepath: str) -> bool:
    """Validate a JSON file. Returns True if valid, False otherwise."""
    try:
        with open(filepath, 'r') as f:
            json.load(f)
        print(f"VALID: {filepath}")
        return True
    except json.JSONDecodeError as e:
        print(f"INVALID: {filepath} - {e}")
        return False
    except FileNotFoundError:
        print(f"NOT FOUND: {filepath}")
        return False


def main():
    if len(sys.argv) < 2:
        print("Usage: json-validator.py <file-or-directory>")
        sys.exit(1)
    
    paths = sys.argv[1:]
    all_valid = True
    
    for path in paths:
        p = Path(path)
        if p.is_dir():
            for json_file in p.rglob("*.json"):
                if not validate_json_file(str(json_file)):
                    all_valid = False
        elif p.is_file():
            if not validate_json_file(str(p)):
                all_valid = False
        else:
            print(f"NOT FOUND: {path}")
            all_valid = False
    
    sys.exit(0 if all_valid else 1)


if __name__ == "__main__":
    main()