FROM python:3.11-slim

# Install system dependencies for PDF processing
RUN apt-get update && apt-get install -y --no-install-recommends \
    tesseract-ocr \
    tesseract-ocr-eng \
    poppler-utils \
    ghostscript \
    libgl1 \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

# Copy application code (no worker, redis_queue, or db_manager)
COPY cloudrun_service.py .
COPY enterprise_pdf_checker.py .
COPY pdf_remediation.py .
COPY logger_config.py .
COPY retry_helper.py .

# Cloud Run sets $PORT; gunicorn binds to it
# --workers 1 --threads 1: Cloud Run concurrency=1, one request at a time
# --timeout 900: allow up to 15 minutes for large PDFs
CMD exec gunicorn --bind :$PORT --workers 1 --threads 1 --timeout 900 cloudrun_service:app