import fitz
from langchain_community.tools import BaseTool

class PDFMetadataTool(BaseTool):
    name="pdf_metadata"
    description="Extract metadata from PDF file"
    
    def _run(self, path: str):
        try: 
            with fitz.open(path) as doc:
                metadata = {
                    "páginas": len(doc)
                }
        except Exception as e:
            return f"Error: {e}"