from weasyprint import HTML
import pandas as pd
import logging
import os

logger = logging.getLogger(__name__)

def generate_pdf(df):
    """Generate a PDF report from log data."""
    logger.info("Generating PDF report...")
    try:
        html_content = f"""
        <h1>LabOps Dashboard Report</h1>
        <p>Generated on: {pd.Timestamp.now().strftime('%Y-%m-%d')}</p>
        <h2>Log Data</h2>
        {df.head().to_html(index=False)}
        """
        pdf_path = "/tmp/labops_report.pdf"
        HTML(string=html_content).write_pdf(pdf_path)
        logger.info(f"PDF report saved to {pdf_path}")
        return pdf_path
    except Exception as e:
        logger.error(f"Failed to generate PDF report: {e}")
        raise