FROM python:3.11-slim

WORKDIR /app

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

# Install uv for fast dependency management
COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv

# Copy requirements and install via uv
COPY requirements.txt .
RUN uv pip install --system -r requirements.txt

# Copy backend application code
COPY . .

# Collect static files
RUN python manage.py collectstatic --noinput || true

EXPOSE 8000

CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "3", "shiftplan_backend.wsgi:application"]