FROM python:3.9-slim

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    HF_HOME=/tmp/cache \
    TORCH_HOME=/tmp/cache \
    FLASK_APP=app.py \
    TOKENIZERS_PARALLELISM=false \
    DATABASE_URL=sqlite:////tmp/news.db

# Create cache directory with proper permissions
RUN mkdir -p /tmp/cache && \
    touch /tmp/news.db && \
    chmod -R 777 /tmp

# Install system dependencies including accelerate
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    gcc \
    python3-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir -U pip && \
    pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 7860

CMD ["gunicorn", "app:app", \
    "--bind", "0.0.0.0:7860", \
    "--workers", "1", \
    "--timeout", "300", \
    "--worker-class", "gevent"]