FROM python:3.13-slim AS builder

# Prevent Python from writing .pyc files and enable unbuffered stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=1

WORKDIR /app

# Install build deps required to build wheels
RUN apt-get update \
    && apt-get install -y --no-install-recommends build-essential gcc \
    && rm -rf /var/lib/apt/lists/*

# Upgrade packaging tools and install runtime dependencies into a separate prefix
COPY requirements.txt ./
RUN pip install --upgrade pip setuptools wheel \
    && pip install --prefix=/install --no-cache-dir \
    --extra-index-url https://git.theprivateserver.de/api/packages/PHB/pypi/simple/ \
    -r requirements.txt \
    && rm -rf /root/.cache/pip

# Copy application source (only used to include app files in final image)
COPY . /app

FROM python:3.13-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    API_PORT=8001

WORKDIR /app

# Copy installed packages from the builder image into the final image
COPY --from=builder /install /usr/local
# Copy application sources
COPY --from=builder /app /app

EXPOSE 8001

# Run using uvicorn; the app is defined in `api_service.py` as `app`
CMD ["uvicorn", "api_service:app", "--host", "0.0.0.0", "--port", "8001"]