main.py

import sys
import shutil
import subprocess
import logging
import sys


logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


def check_quarto():
    path = shutil.which("quarto")
    if path is None:
        raise OSError("Quarto not found in PATH")
    logger.info(f"Quarto found at: {path}")
    return path


def check_pandoc():
    path = shutil.which("pandoc")
    if path is None:
        raise OSError("Pandoc not found in PATH")
    logger.info(f"Pandoc found at: {path}")
    return path


def check_python_env():
    logger.info(f"Python executable: {sys.executable}")

    if sys.prefix == sys.base_prefix:
        logger.warning("Not running inside a virtual environment")

    return True


def validate_environment():
    logger.info("Validating environment...")

    check_python_env()
    check_quarto()
    check_pandoc()

    logger.info("All dependencies OK")

def start_gui():
    """
    This function can be changed based on gui preference. Then this file is
    executed via a .bat file
    """

    logger.info('Starting Streamlit GUI')

    # Choose whichever option you prefer
    subprocess.run([sys.executable,'-m','streamlit','run','st.py'])
    # subprocess.run([sys.executable,'-m','gui.py'])

def main():
    try:
        validate_environment()

        # Import GUI only AFTER validation
        start_gui()

    except Exception as e:
        logger.error(f"Startup failed: {e}")
        sys.exit(1)


if __name__ == "__main__":
    main()