from functools import wraps
from flask import request
from app.helpers.response_helper import ResponseHelper
from app.utils.logger import logger

def validate_json(f):
    """Decorator to ensure the request has a valid JSON body."""
    @wraps(f)
    def decorated_function(*args, **kwargs):
        if not request.is_json:
            logger.error("Invalid request: Request must be JSON.")
            return ResponseHelper.error(message="Request must be JSON", status_code=415)

        return f(*args, **kwargs)

    return decorated_function