FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PORT=7860 \
    TZ=UTC

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    tzdata \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY app.py .

# Create a non-root user (required by Hugging Face Spaces)
RUN useradd -m -u 1000 user && \
    chown -R user:user /app

USER user

# Expose Hugging Face port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=60s --timeout=10s --start-period=10s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Run the app
CMD ["python", "app.py"]