# Use a lightweight Python image
FROM python:3.9-slim

# Set the working directory inside the container
WORKDIR /app

# Copy requirements file and install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Ensure necessary libraries for Hugging Face and document processing
RUN apt-get update && apt-get install -y \
    libgl1-mesa-glx \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy application files
COPY . .

# Expose the port Flask runs on
EXPOSE 7860

# Set environment variables for better CPU performance
ENV TOKENIZERS_PARALLELISM=false \
    TRANSFORMERS_OFFLINE=1 \
    HF_DATASETS_OFFLINE=1

# Run the application using Gunicorn with multiple workers
CMD ["gunicorn", "-w", "2", "-b", "0.0.0.0:7860", "app:app"]