FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies required for OpenCV and ONNX
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy all backend files into the container
COPY . .

# Download the ONNX model inside the cloud container
RUN python download_model.py

# Expose the port FastAPI runs on
EXPOSE 7860

# Command to run the application (Hugging Face Spaces expects 0.0.0.0)
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]