FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    HOST=0.0.0.0 \
    PORT=8000 \
    WORKERS=1 \
    MAX_CONCURRENT_ENVS=16

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    && rm -rf /var/lib/apt/lists/*

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

# Copy the self-contained server package
COPY . /app/server

WORKDIR /app/server

# Run FastAPI app
EXPOSE ${PORT}
CMD ["python", "-m", "server.app"]