FROM python:3.12-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /app

RUN addgroup --system app && adduser --system --ingroup app app

COPY backend /app
COPY ["input_data/1.xlsx", "/app/input_data/1.xlsx"]
COPY ["input_data/Operations Throughput.xlsx", "/app/input_data/Operations Throughput.xlsx"]
COPY ["Input Cost Spreadsheet(1).xlsx", "/app/Input Cost Spreadsheet(1).xlsx"]

RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir . && \
    chown -R app:app /app

USER app

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=5 CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health')"

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