# Use an official Python runtime
FROM python:3.11-slim

# Set the working directory
WORKDIR /app

# Install native libs needed for OpenCV / QR detection
RUN apt-get update && apt-get install -y --no-install-recommends \
    libzbar0 \
    libgl1 \
    libglib2.0-0 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY . .

# Runtime defaults
ENV APP_ENV=prod
ENV PORT=7860
ENV EXPOSE_DOCS=false
ENV MAX_UPLOAD_MB=10

# Expose service port
EXPOSE 7860

# Liveness probe target
HEALTHCHECK --interval=30s --timeout=10s --start-period=20s --retries=3 CMD curl --fail http://127.0.0.1:7860/health || exit 1

# Run the app
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]