FROM python:3.12-slim

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONPATH=/app/backend

WORKDIR /app

# Copy requirements file first
COPY requirements.txt .

# Install build dependencies for psycopg2, install pip requirements, then clean up build tools
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    python3-dev \
    libpq-dev \
    libpq5 \
    && pip install --no-cache-dir -r requirements.txt \
    && apt-get purge -y --auto-remove gcc python3-dev libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy entrypoint script and set executable permissions
COPY entrypoint.sh /app/entrypoint.sh
RUN sed -i 's/\r$//' /app/entrypoint.sh && chmod +x /app/entrypoint.sh

# Copy backend source code
COPY backend /app/backend

EXPOSE 8000

ENTRYPOINT ["/app/entrypoint.sh"]