#!/usr/bin/env python3
"""
Quick JSON validator - validates all .json files in a directory.
Usage: python3 json-validate.py <directory>
Exit 0 if all valid, exit 1 if any invalid.
"""
import sys
import json
from pathlib import Path

def validate_json_files(directory: str) -> bool:
    """Validate all JSON files in directory. Returns True if all valid."""
    dir_path = Path(directory)
    if not dir_path.exists():
        print(f"Error: Directory {directory} does not exist")
        return False
    
    json_files = list(dir_path.glob("*.json"))
    if not json_files:
        print(f"No .json files found in {directory}")
        return True
    
    all_valid = True
    for json_file in json_files:
        try:
            with open(json_file, 'r') as f:
                json.load(f)
            print(f"✓ {json_file.name}")
        except json.JSONDecodeError as e:
            print(f"✗ {json_file.name}: {e}")
            all_valid = False
        except Exception as e:
            print(f"✗ {json_file.name}: {type(e).__name__}: {e}")
            all_valid = False
    
    return all_valid

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: json-validate.py <directory>")
        sys.exit(1)
    
    if validate_json_files(sys.argv[1]):
        print("\nAll JSON files are valid")
        sys.exit(0)
    else:
        print("\nSome JSON files are invalid")
        sys.exit(1)