# Use an official lightweight Python image
FROM python:3.10-slim

# Set environment variables to prevent Python from writing .pyc files and buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

RUN mkdir -p /app/hf_cache

# Set working directory
WORKDIR /app

# Copy and install dependencies
COPY requirements.txt .
RUN --mount=type=cache,target=/root/.cache/pip \
    pip install -r requirements.txt

# Copy the entire application
COPY . .

RUN chmod 666 /app/faqs.csv /app/question_limit_log.json

# Expose the port FastAPI will run on (Hugging Face requires 7860)
EXPOSE 7860

# Run the FastAPI app using uvicorn
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--proxy-headers"]