# Use an official Python runtime as a parent image
FROM python:3.10-slim

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Set the working directory in the container
WORKDIR /app

# Copy only the requirements file to leverage Docker cache
COPY requirements.txt /app/

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip
RUN pip install --no-cache-dir -r requirements.txt

# Copy the current directory contents into the container
COPY . /app

# Expose the port that the FastAPI app runs on
EXPOSE 8001

# Environment variables (set your actual APP_SECRET securely)
# It's recommended to pass APP_SECRET at runtime rather than hardcoding it
# ENV APP_SECRET=your_app_secret_here

# Command to run the app with Gunicorn and Uvicorn workers
CMD ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "--workers", "4", "--bind", "0.0.0.0:8001", "main:app"]