FROM python:3.11-slim AS builder

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential gcc libffi-dev libpq-dev \
    && pip install --upgrade pip \
    && apt-get clean && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

RUN pip install --prefix=/install --no-cache-dir -r requirements.txt

FROM python:3.11-slim

WORKDIR /app

COPY --from=builder /install /usr/local
COPY . .

CMD ["python", "main.py"]