# Use an appropriate base image
FROM python:3.10.12

# Set the working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    glpk-utils \
    && rm -rf /var/lib/apt/lists/*

# Copy only requirements.txt initially to leverage Docker cache
COPY requirements.txt /app/requirements.txt

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

# Copy the rest of the application code
COPY . /app

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

# Set the working directory for the user
WORKDIR /app

# Verify GLPK installation
RUN glpsol --version

# Expose port for Streamlit
EXPOSE 8501

# Command to run the Streamlit application
CMD ["streamlit", "run", "app.py", "--server.headless", "true", "--server.enableCORS", "false", "--server.enableXsrfProtection", "false", "--server.fileWatcherType", "none"]