FROM python:3.11-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    postgresql-client \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY . .

# Set environment variables
ENV FLASK_APP=app.py
ENV FLASK_ENV=development

# Expose the port the app runs on
EXPOSE 5000

# Command to run the application
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "app:app"]