FROM python:3.9-slim

# Set working directory
WORKDIR /code

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

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

# Set NLTK data path
ENV NLTK_DATA=/usr/local/nltk_data

# Download NLTK data to the correct location
RUN mkdir -p $NLTK_DATA && \
    python -m nltk.downloader -d $NLTK_DATA wordnet omw-1.4

# Copy source code
COPY . .

# Run app
CMD ["python", "app.py"]