FROM python:3.12-slim

WORKDIR /app

ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

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

# Copy and install Python dependencies
COPY requirements-railway.txt .
RUN pip install --no-cache-dir -r requirements-railway.txt

# Copy application code
COPY . .

# Create logs and cache directories
RUN mkdir -p logs .gradio

EXPOSE 8501

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8501/ || exit 1

# Run Streamlit
CMD streamlit run streamlit_app.py --server.port=8501 --server.address=0.0.0.0 --logger.level=warning