# Use an official Python runtime as a parent image
FROM python:3.9

# Create app directory
WORKDIR /app

# Copy the Python requirements file and system packages list
COPY ./requirements.txt /app/requirements.txt

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
RUN pip install --upgrade pip setuptools wheel && \
    pip install --no-cache-dir -r /app/requirements.txt

# Create a non-root user
RUN useradd -m -u 1000 user
USER user
ENV HOME /home/user
ENV PATH $HOME/.local/bin:$PATH

# Copy the application to the user's home directory
WORKDIR $HOME
COPY --chown=user:user . $HOME/app

# Set the working directory to the app directory
WORKDIR $HOME/app

# Expose the Streamlit port
EXPOSE 8501

# Run the Streamlit application with additional configurations for cloud deployment
CMD ["streamlit", "run", "app.py", "--server.address=0.0.0.0", "--server.headless=true", "--server.enableCORS=false", "--server.enableXsrfProtection=false", "--server.fileWatcherType=none"]