FROM python:3.11-slim

WORKDIR /app

# Install system dependencies (fixed for Debian Trixie)
RUN apt-get update && apt-get install -y \
    libglx-mesa0 \
    libgl1-mesa-dri \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Upgrade pip
RUN pip install --upgrade pip

# Copy requirements first for better layer caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY . .

# Create gunicorn configuration file
RUN echo 'import multiprocessing\n\
\n\
bind = "0.0.0.0:7860"\n\
workers = 2                         # HF Spaces provide 2 vCPUs\n\
worker_class = "uvicorn.workers.UvicornWorker"\n\
timeout = 120\n\
keepalive = 5\n\
max_requests = 1000\n\
max_requests_jitter = 50\n\
graceful_timeout = 30\n\
' > /app/gunicorn_conf.py

ENV HF_HOME=/data
RUN mkdir -p /data

EXPOSE 7860

CMD ["gunicorn", "-c", "gunicorn_conf.py", "app:app"]