FROM python:3.9-slim

# Set working directory to /app inside the container
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    && rm -rf /var/lib/apt/lists/*

# Create directories for cache and streamlit config
RUN mkdir -p /app/.streamlit /app/.cache

# Set environment variables for caching
ENV TRANSFORMERS_CACHE=/app/.cache
ENV HF_HOME=/app/.cache
ENV TORCH_HOME=/app/.cache

# Copy .streamlit config folder (including config.toml)
COPY .streamlit/ .streamlit/

# Copy app files (chromadb_model is already in the Space repository)
COPY app/ ./
COPY requirements.txt ./

# Install Python dependencies
RUN pip3 install -r requirements.txt

# Set environment variables for Streamlit
ENV STREAMLIT_CONFIG_DIR=/app/.streamlit
ENV STREAMLIT_SERVER_HEADLESS=true
ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false

# Expose port 8501 (Streamlit Spaces requirement)
EXPOSE 8501

# Healthcheck endpoint for Spaces
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

# Run Streamlit (let it use default port 8501)
ENTRYPOINT ["streamlit", "run", "main.py", "--server.address=0.0.0.0"]