FROM python:3.10-slim

WORKDIR /code

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

# Set environment variables
ENV TRANSFORMERS_CACHE=/code/cache
ENV HF_HOME=/code/cache
ENV TOKENIZERS_PARALLELISM=false

# Copy requirements first for better caching
COPY requirements.txt /code/requirements.txt

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# Download models at build time to avoid runtime delays
RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('sentence-transformers/all-MiniLM-L6-v2')"

# Copy the application code
COPY . /code

# Create cache directory
RUN mkdir -p /code/cache

# Expose port 7860 for Hugging Face Spaces
EXPOSE 7860

# Run the application
CMD ["python", "app1.py"]