#!/usr/bin/env python3
"""Word count utility - counts words in a file and outputs JSON result."""
import json
import sys
from pathlib import Path

def word_count(filepath):
    """Count words in file and return stats."""
    path = Path(filepath)
    if not path.exists():
        return {"error": f"File not found: {filepath}"}
    
    content = path.read_text()
    words = content.split()
    lines = content.splitlines()
    
    return {
        "file": str(path),
        "bytes": path.stat().st_size,
        "lines": len(lines),
        "words": len(words),
        "characters": len(content)
    }

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print(json.dumps({"error": "Usage: wordcount.py <file>"}))
        sys.exit(1)
    
    result = word_count(sys.argv[1])
    print(json.dumps(result, indent=2))