FROM python:3.11-slim

RUN apt-get update && apt-get install -y \
    libzbar0 \
    libzbar-dev \
    libgl1-mesa-glx \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

COPY scanner.py .

CMD ["python", "scanner.py"]