FROM python:3.10-slim

WORKDIR /app

# Update system dependencies: 
# - libgl1 replaces libgl1-mesa-glx
# - libgomp1 is added for PaddlePaddle/PaddleOCR C++ backend requirements
# - rm -rf /var/lib/apt/lists/* cleans up cache to keep the image small
RUN apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

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

# Copy all backend files
COPY . .

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