FROM python:3.12-slim

WORKDIR /app

# Install system deps for bcrypt, pymongo, etc.
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies first (layer caching)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create upload/temp directories
RUN mkdir -p /app/uploads /app/temp

EXPOSE 5137

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