FROM python:3.9-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    cmake \
    git \
    libcairo2-dev \
    pkg-config \
    python3-dev \
    libfreetype6-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker cache
COPY requirements.txt .

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

# Install diffvg from the DiffSketcher project
RUN pip install --no-cache-dir git+https://github.com/ximinng/DiffSketcher-project.git#subdirectory=diffvg

# Copy the model files
COPY . .

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONPATH=/app

# Run the API server
CMD ["python", "app.py"]