import requests
from smolagents import tool


@tool
def read_pdf(pdf_url: str) -> str:
    """
    Extract text content from a PDF document.

    Args:
        pdf_url: URL of the PDF to read

    Returns:
        Text content extracted from the PDF
    """
    try:
        # Download the PDF
        response = requests.get(pdf_url)
        response.raise_for_status()

        # This is a placeholder - in a real implementation, you would use a PDF parsing library
        # such as PyPDF2, pdfplumber, or pdf2text
        return "PDF content extraction would happen here in a real implementation"
    except Exception as e:
        return f"Error: {str(e)}"