FROM python:3.11-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential gcc g++ && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install torch CPU separately to avoid index-url conflicts
RUN pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cpu

# Install Qwen2.5-7B compatible transformers + core deps
RUN pip install --no-cache-dir \
    "transformers>=4.53.0" \
    accelerate \
    gradio \
    "spacy>=3.7.0,<3.8.0"

# Install CodeCarbon (sustainability tracking)
RUN pip install --no-cache-dir \
    "codecarbon>=2.4.0"

RUN python -m spacy download en_core_web_sm

COPY bias_detector.py .
COPY app.py .

EXPOSE 7860

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