FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    STREAMLIT_SERVER_PORT=7860 \
    STREAMLIT_SERVER_HEADLESS=true \
    STREAMLIT_SERVER_ENABLECORS=false \
    STREAMLIT_SERVER_ADDRESS=0.0.0.0 \
    STREAMLIT_CONFIG_DIR=/app/.streamlit

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

# Create writable dirs for Streamlit & logs
RUN mkdir -p /app/.streamlit /app/logs && chmod -R 777 /app

COPY . .

EXPOSE 7860

CMD ["streamlit", "run", "app.py"]