FROM python:3.9-slim

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/*

# Create .streamlit directory with write permissions
RUN mkdir -p /app/.streamlit && chmod -R 777 /app/.streamlit

# Copy app source
COPY requirements.txt ./
COPY src/ ./src/
COPY src/ .

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

# Set environment variable to avoid permission issue with matplotlib and Streamlit
ENV MPLCONFIGDIR=/tmp
ENV STREAMLIT_HOME=/app/.streamlit

# Expose Streamlit port
EXPOSE 8501

# Healthcheck
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

# Entry point to run Streamlit app
ENTRYPOINT ["streamlit", "run", "src/app.py", "--server.port=8501", "--server.address=0.0.0.0"]