# Multi-stage Docker build for FastAPI
FROM python:3.11-slim as builder

WORKDIR /app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends gcc libpq-dev postgresql-client \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Install python dependencies
COPY requirements.txt .
RUN pip wheel --no-cache-dir --no-deps --wheel-dir /app/wheels -r requirements.txt

# Final stage
FROM python:3.11-slim

WORKDIR /app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Install system dependencies (needed for pg_dump in backup service)
RUN apt-get update \
    && apt-get install -y --no-install-recommends libpq-dev postgresql-client \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

COPY --from=builder /app/wheels /wheels
COPY --from=builder /app/requirements.txt .

RUN pip install --no-cache /wheels/*

COPY . .
# Create a non-root user and switch to it
RUN adduser --system --group appuser && \
    chown -R appuser:appuser /app

USER appuser

# Run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--proxy-headers"]