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

# Install system dependencies needed for TextTeller and image processing (as root)
RUN apt-get update && apt-get install -y \
    git \
    wget \
    curl \
    build-essential \
    libgl1-mesa-dev \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    libgthread-2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user (required by Hugging Face Spaces)
RUN useradd -m -u 1000 user
USER user

# Set environment PATH
ENV PATH="/home/user/.local/bin:$PATH"

# Set working directory
WORKDIR /app

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

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

# Install TextTeller with ONNX runtime support
RUN pip install --no-cache-dir --user texteller

# Copy the application code
COPY --chown=user main.py .

# Set environment variables
ENV FLASK_APP=main.py
ENV PYTHONUNBUFFERED=1
ENV PORT=7860

# Expose the port the app runs on
EXPOSE 7860

# Add healthcheck
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Run the application
CMD ["python", "main.py"]