# ─────────────────────────────────────────────────────────────────────────────
#  PMDI Backend — FastAPI / Python 3.11
# ─────────────────────────────────────────────────────────────────────────────
FROM python:3.11-slim AS base

# Prevent Python from writing .pyc files and buffer stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /app

# Install OS-level deps needed by psycopg2-binary and argon2-cffi
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        gcc \
        libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies first (layer cache friendly)
COPY requirements.txt ./
RUN pip install --no-cache-dir --upgrade pip \
    && pip install --no-cache-dir -r requirements.txt

# Copy application source
COPY app/ ./app/

EXPOSE 8000

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--log-level", "info"]