# Use official Python runtime as base image
FROM python:3.11-slim

# Set working directory in container
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libssl-dev \
    libffi-dev \
    python3-dev \
    libopencv-dev \
    libsm6 \
    libxext6 \
    libxrender-dev \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements file
COPY requirements.txt .

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

# Copy backend source code
COPY src/ ./src/

# Expose port for FastAPI
EXPOSE 7860

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV API_HOST=0.0.0.0
ENV API_PORT=7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:7860/health', timeout=5)"

# Run the FastAPI application with uvicorn
CMD ["uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "7860"]