# Hugging Face Docker Space - Streamlit (port 7860)
FROM python:3.9-slim

# -----------------------------
# System setup
# -----------------------------
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1

# Create a non-root user (HF-friendly)
RUN useradd -m -u 1000 user

# -----------------------------
# App setup
# -----------------------------
WORKDIR /home/user/app

# Copy requirements first (better Docker layer caching)
COPY requirements.txt ./requirements.txt

# Install Python dependencies
RUN pip install --upgrade pip && pip install -r requirements.txt

# Copy application code
COPY . .

# Fix ownership (optional but recommended)
RUN chown -R user:user /home/user/app

# Switch to non-root user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

# Hugging Face expects the service on port 7860
ENV PORT=7860
EXPOSE 7860

# -----------------------------
# Run Streamlit
# -----------------------------
CMD ["streamlit", "run", "app.py", \
     "--server.address=0.0.0.0", \
     "--server.port=7860", \
     "--server.headless=true", \
     "--browser.gatherUsageStats=false", \
     "--server.enableXsrfProtection=false"]