FROM python:3.10

WORKDIR /code

# Create cache directories with proper permissions and ownership
RUN mkdir -p /tmp/cache/huggingface && \
    mkdir -p /tmp/cache/transformers && \
    mkdir -p /tmp/cache/sentence_transformers && \
    chmod -R 777 /tmp/cache && \
    chown -R 1000:1000 /tmp/cache

# Set environment variables for cache directories
ENV HF_HOME=/tmp/cache/huggingface
ENV TRANSFORMERS_CACHE=/tmp/cache/transformers
ENV SENTENCE_TRANSFORMERS_HOME=/tmp/cache/sentence_transformers
ENV TORCH_HOME=/tmp/cache/torch
ENV XDG_CACHE_HOME=/tmp/cache

COPY ./requirements.txt /code/requirements.txt

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# Pre-download the sentence transformer model during build with proper cache setup
RUN export HF_HOME=/tmp/cache/huggingface && \
    export TRANSFORMERS_CACHE=/tmp/cache/transformers && \
    export SENTENCE_TRANSFORMERS_HOME=/tmp/cache/sentence_transformers && \
    python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('all-MiniLM-L6-v2')" && \
    chmod -R 777 /tmp/cache

COPY . /code

CMD ["uvicorn", "fapi:app", "--host", "0.0.0.0", "--port", "7860"]