FROM python:3.11-slim AS builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libmagic1 \
    && rm -rf /var/lib/apt/lists/*

RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

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

FROM python:3.11-slim

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    libmagic1 \
    && rm -rf /var/lib/apt/lists/*

ENV PATH="/opt/venv/bin:$PATH"
ENV PYTHONUNBUFFERED=1

COPY --from=builder /opt/venv /opt/venv
COPY . .

RUN mkdir -p uploads

EXPOSE 8000

CMD alembic upgrade head && uvicorn main:app --host 0.0.0.0 --port 8000