# Timetable solver — Timefold needs a JVM at runtime (it's a JPype wrapper
# around the Java engine). We install OpenJDK 17 alongside Python 3.11 on
# the slim Debian base so the same image works on ARM64 and x86_64.
FROM python:3.11-slim

ENV JAVA_HOME=/usr/lib/jvm/default-java
ENV PATH="${JAVA_HOME}/bin:${PATH}"

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
        default-jdk-headless \
        libgomp1 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY app ./app

EXPOSE 8095

HEALTHCHECK --interval=30s --timeout=5s --start-period=60s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8095/health')" || exit 1

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8095"]