# Use an official Python runtime as a parent image
FROM python:3.11-slim

# Set the working directory in the container
WORKDIR /app

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

# Copy the requirements file into the container at /app
COPY requirements.txt .

# Install any needed packages specified in requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application's code into the container at /app
COPY . .

# Declare PORT as build argument so Railway can inject it
ARG PORT
ENV PORT=${PORT:-8080}

# Set environment variables
ENV FLASK_APP=run.py
ENV PYTHONUNBUFFERED=1

# Expose the port
EXPOSE $PORT

# Command to run the application
CMD exec gunicorn run:app --bind 0.0.0.0:$PORT --workers 1