# Hugging Face Spaces Dockerfile for KYC POC Backend
FROM python:3.10-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV DEBIAN_FRONTEND=noninteractive

# Install system dependencies and build tools for insightface
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    build-essential \
    cmake \
    && rm -rf /var/lib/apt/lists/*

# Create app user for HF Spaces (required)
RUN useradd -m -u 1000 user
WORKDIR /home/user/app

# Create directories with correct ownership for models
RUN mkdir -p /home/user/app/models/anti_spoof \
    /home/user/app/insightface_models/models \
    /home/user/app/.cache \
    && chown -R user:user /home/user/app

# Copy requirements first for better caching
COPY --chown=user:user requirements.txt .

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

# Copy application code
COPY --chown=user:user . .

# Switch to non-root user (required for HF Spaces)
USER user

# Download models during build (as user, so permissions are correct)
RUN python setup_models.py

# Set HuggingFace and InsightFace to use local models
ENV HF_HOME=/home/user/app/.cache/huggingface
ENV INSIGHTFACE_HOME=/home/user/app/insightface_models

# Expose port (HF Spaces uses 7860 by default)
EXPOSE 7860

# Set environment variables for production
ENV DEBUG=False
ENV USE_GPU=False
ENV DEVICE_ID=-1

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