FROM python:3.10

ENV HF_HOME=/app/cache

WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# 👇 Pre-download model
RUN python -c "from transformers import AutoTokenizer, AutoModelForCausalLM; \
AutoTokenizer.from_pretrained('TinyLlama/TinyLlama-1.1B-Chat-v1.0'); \
AutoModelForCausalLM.from_pretrained('TinyLlama/TinyLlama-1.1B-Chat-v1.0')"

COPY app.py .

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