# Dockerfile for Hugging Face Spaces (Docker SDK)
# This is the main Dockerfile used by HF Spaces when sdk: docker is set
FROM python:3.10-slim

# System dependencies (ADD GIT HERE)
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    cmake \
    libopenblas-dev \
    libomp-dev \
    curl \
    git \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Set environment variables to prevent warnings
# Fix libgomp OMP_NUM_THREADS warning
ENV OMP_NUM_THREADS=4
ENV MKL_NUM_THREADS=4

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy application code
COPY . .

# Expose ports
# 7860: Gradio UI (primary, exposed by HF Spaces)
# 5001: Flask API (runs in background thread)
EXPOSE 7860 5001

# Health check - check Gradio endpoint
HEALTHCHECK --interval=30s --timeout=30s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:7860/ || exit 1

# Run main.py (starts both Gradio and Flask API)
# main.py starts Flask API in background thread and launches Gradio
#
# ZeroGPU API Configuration (optional):
# Set these environment variables in HF Spaces secrets for ZeroGPU integration:
# - USE_ZERO_GPU=true (enable ZeroGPU API)
# - ZERO_GPU_API_URL=https://<pod-id>-8000.proxy.runpod.net (Runpod proxy URL)
#   Example: https://bm9njt1ypzvuqw-8000.proxy.runpod.net
# - ZERO_GPU_EMAIL=service@example.com (for service account mode)
# - ZERO_GPU_PASSWORD=your-password (for service account mode)
# - ZERO_GPU_PER_USER_MODE=true (for per-user mode, optional)
# - ZERO_GPU_ADMIN_EMAIL=admin@example.com (for per-user mode)
# - ZERO_GPU_ADMIN_PASSWORD=admin-password (for per-user mode)
CMD ["python", "main.py"]