FROM python:3.11-slim

# Set working directory
WORKDIR /app

# HF Spaces requires port 7860
ENV PORT=7860

# Install system deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first (Docker cache layer)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Pre-download the embedding model at build time (faster cold starts)
RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('all-MiniLM-L6-v2')"

# Copy application code
COPY app/ ./app/
COPY static/ ./static/
COPY stacklogix_docs/ ./stacklogix_docs/

# Copy .env if it exists (fallback — HF Spaces uses Secrets instead)
COPY .env* ./

# Expose port
EXPOSE 7860

# Start the server on port 7860 (HF Spaces requirement)
CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]