# Use lightweight Python 3.11 slim image
FROM python:3.11-slim

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

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

# Set working directory
WORKDIR /app

# Copy dependency requirements
COPY requirements.txt .

# Install Python packages
RUN pip install --no-cache-dir -r requirements.txt

# Copy application files
COPY . .

# Expose port (7860 is default for Hugging Face Spaces)
EXPOSE 7860

# Run FastAPI via Uvicorn
CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port ${PORT:-7860}"]