# ──────────────────────────────────────────────────────────────────────────────
# PawCare Backend — Dockerfile for Hugging Face Spaces
# ──────────────────────────────────────────────────────────────────────────────
FROM python:3.11-slim

# System deps for Pillow & psycopg2
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq-dev gcc libjpeg-dev zlib1g-dev libwebp-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install Python deps first (layer cache)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy project source
COPY . .

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

# Create non-root user (HF Spaces runs as user 1000)
RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

EXPOSE 7860

# Gunicorn: 2 workers × (2 × CPU + 1) threads — suitable for HF free tier
CMD ["gunicorn", "petcare.wsgi:application", \
     "--bind", "0.0.0.0:7860", \
     "--workers", "2", \
     "--threads", "4", \
     "--timeout", "120", \
     "--access-logfile", "-", \
     "--error-logfile", "-"]