FROM python:3.11-slim-bookworm

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    DEBIAN_FRONTEND=noninteractive

# Switch apt to a faster mirror (Yandex) before installing. The default
# deb.debian.org Cloudflare CDN throttles to ~150 kB/s from some networks,
# stalling the build on gcc-12/cpp-12; Yandex serves consistently faster.
RUN sed -i 's|deb.debian.org|mirror.yandex.ru|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null \
 || sed -i 's|deb.debian.org|mirror.yandex.ru|g' /etc/apt/sources.list 2>/dev/null \
 || true

# System deps for OCRmyPDF + Tesseract (rus+eng) + Ghostscript + qpdf + image libs
RUN apt-get update \
 && apt-get install -y --no-install-recommends \
        --fix-missing -o Acquire::Retries=10 \
        -o Acquire::http::Timeout=180 \
        -o Acquire::https::Timeout=180 \
        build-essential \
        curl \
        ca-certificates \
        ghostscript \
        qpdf \
        unpaper \
        pngquant \
        jbig2dec \
        libxml2-dev \
        libxslt1-dev \
        libffi-dev \
        libjpeg-dev \
        libopenjp2-7 \
        libtiff5-dev \
        zlib1g-dev \
        poppler-utils \
        libmagic1 \
        tesseract-ocr \
        tesseract-ocr-eng \
        tesseract-ocr-rus \
        tesseract-ocr-osd \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy the metadata + package payload BEFORE pip install. hatchling validates
# README.md and the [packages] entries (app, scripts) at editable-install time;
# missing files cause `Readme file does not exist` even with `pip install -e .`.
COPY pyproject.toml README.md alembic.ini /app/
COPY app /app/app
COPY scripts /app/scripts

RUN pip install --upgrade pip wheel setuptools \
 && pip install -e .

RUN mkdir -p /data/input /data/work

EXPOSE 8000

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]