FROM python:3.9

# Install system dependencies (Tesseract for OCR)
RUN apt-get update && apt-get install -y \
    tesseract-ocr \
    && rm -rf /var/lib/apt/lists/*

# Create and switch to a non-root user
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

# Set working directory
WORKDIR /app

# Copy and install Python dependencies
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy application code
COPY --chown=user . /app

# Start the app with Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]