FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and source files
COPY requirements.txt ./
COPY src/ ./src/

# Install Python dependencies
RUN pip3 install --no-cache-dir -r requirements.txt

# Create a writable directory for Streamlit configuration
RUN mkdir -p /app/.streamlit

# Set environment variables for Streamlit
ENV STREAMLIT_CONFIG_DIR=/app/.streamlit

# Optional: Disable usage statistics
RUN echo "[browser]\ngatherUsageStats = false" > /app/.streamlit/config.toml

# Expose the Streamlit default port
EXPOSE 8501

# Healthcheck to ensure the app is running
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

# Start the Streamlit application
ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]