# Use a lightweight Python base image
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Prevent Python from writing .pyc files and buffering stdout
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

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

# Copy dependency list first to leverage Docker cache
COPY requirements.txt .

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

# Copy the rest of your app
COPY . .

# Expose Streamlit default port
EXPOSE 8501

# Streamlit config for headless mode
ENV STREAMLIT_SERVER_HEADLESS=true
ENV STREAMLIT_SERVER_PORT=8501
ENV STREAMLIT_SERVER_ENABLE_CORS=false
ENV STREAMLIT_SERVER_ENABLE_XSRF_PROTECTION=false

# Start Streamlit
CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]