FROM python:3.12-slim

WORKDIR /app

# System-Dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Non-root user für sichereren Betrieb
RUN adduser --disabled-password --gecos "" appuser

# Python-Dependencies zuerst (Docker Layer Cache)
COPY backend/requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# App-Code
COPY backend/ .

# Media-Verzeichnis mit korrekten Rechten für appuser
RUN mkdir -p /data/media/dogs /data/media/diary /data/media/poison \
    && chown -R appuser:appuser /data /app

USER appuser

EXPOSE 8000

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000", "--proxy-headers"]