# Backend-only DeerFlow image for offline delivery.
#
# Build online once, then export with:
#   docker save deerflow-backend-offline:latest -o deerflow-backend-offline.tar
#
# Runtime code/config/data are bind-mounted by start-backend-docker.sh so the
# customer can edit code, agents, skills, config.yaml, .env, and SQLite data
# without rebuilding this dependency image.

ARG PYTHON_IMAGE=python:3.12-slim-bookworm

FROM ${PYTHON_IMAGE} AS builder

ARG APT_MIRROR=mirrors.aliyun.com
ARG UV_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple/
ARG UV_VERSION=0.7.20
ARG UV_NO_CACHE=1
ARG UV_COMPILE_BYTECODE=0

ENV UV_PROJECT_ENVIRONMENT=/opt/venv \
    UV_INDEX_URL=${UV_INDEX_URL} \
    UV_LINK_MODE=copy \
    UV_NO_CACHE=${UV_NO_CACHE} \
    UV_COMPILE_BYTECODE=${UV_COMPILE_BYTECODE} \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /build/backend

RUN if [ -n "${APT_MIRROR}" ]; then \
      sed -i "s|deb.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list.d/debian.sources 2>/dev/null || true; \
      sed -i "s|security.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list.d/debian.sources 2>/dev/null || true; \
      sed -i "s|deb.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list 2>/dev/null || true; \
      sed -i "s|security.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list 2>/dev/null || true; \
    fi \
    && apt-get update \
    && apt-get install -y --no-install-recommends \
        build-essential \
        ca-certificates \
        curl \
        git \
    && rm -rf /var/lib/apt/lists/* \
    && python -m pip install --no-cache-dir -i "${UV_INDEX_URL}" "uv==${UV_VERSION}"

ARG UV_HTTP_TIMEOUT=300
ARG UV_CONCURRENT_DOWNLOADS=4
ARG UV_CONCURRENT_INSTALLS=4
ARG UV_CONCURRENT_BUILDS=2

ENV UV_HTTP_TIMEOUT=${UV_HTTP_TIMEOUT} \
    UV_CONCURRENT_DOWNLOADS=${UV_CONCURRENT_DOWNLOADS} \
    UV_CONCURRENT_INSTALLS=${UV_CONCURRENT_INSTALLS} \
    UV_CONCURRENT_BUILDS=${UV_CONCURRENT_BUILDS}

COPY pyproject.toml uv.lock README.md requirements-offline.txt ./
COPY packages ./packages

RUN python -m venv /opt/venv \
    && /opt/venv/bin/python -m pip install --no-cache-dir --upgrade -i "${UV_INDEX_URL}" pip setuptools wheel \
    && sed -E '/--hash=/d; s/[[:space:]]+\\$//; s|^-e[[:space:]]+./packages/harness$|./packages/harness|' requirements-offline.txt > /tmp/requirements-docker.txt \
    && /opt/venv/bin/pip install --no-cache-dir -i "${UV_INDEX_URL}" -r /tmp/requirements-docker.txt \
    && /opt/venv/bin/pip install --no-cache-dir -i "${UV_INDEX_URL}" \
        "asyncmy>=0.2.11" \
        "python-docx==1.2.0" \
    && /opt/venv/bin/python -c 'import docx, lxml, mammoth, markitdown, openpyxl, pandas, pptx, xlrd; print("Office Python dependencies OK")'

COPY . .

FROM ${PYTHON_IMAGE} AS runtime

ARG APT_MIRROR=mirrors.aliyun.com

ENV PATH=/opt/venv/bin:$PATH \
    PYTHONPATH=/app/backend:/app/backend/packages/harness \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    DEER_FLOW_PROJECT_ROOT=/app/backend \
    DEER_FLOW_HOME=/app/backend/.deer-flow \
    DEER_FLOW_CONFIG_PATH=/app/backend/config.yaml \
    DEER_FLOW_EXTENSIONS_CONFIG_PATH=/app/backend/extensions_config.json \
    DEER_FLOW_SKILLS_PATH=/app/backend/skills \
    BACKEND_PORT=8001

WORKDIR /app/backend

RUN if [ -n "${APT_MIRROR}" ]; then \
      sed -i "s|deb.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list.d/debian.sources 2>/dev/null || true; \
      sed -i "s|security.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list.d/debian.sources 2>/dev/null || true; \
      sed -i "s|deb.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list 2>/dev/null || true; \
      sed -i "s|security.debian.org|${APT_MIRROR}|g" /etc/apt/sources.list 2>/dev/null || true; \
    fi \
    && apt-get update \
    && apt-get install -y --no-install-recommends \
        ca-certificates \
        curl \
        docker.io \
        file \
        fontconfig \
        fonts-liberation \
        fonts-noto-cjk \
        libmagic1 \
        libreoffice-calc \
        libreoffice-impress \
        libreoffice-writer \
        nodejs \
        npm \
        pandoc \
        poppler-utils \
        tini \
    && rm -rf /var/lib/apt/lists/*

COPY --from=builder /opt/venv /opt/venv
COPY --from=builder /build/backend /app/backend

RUN /opt/venv/bin/python -c 'import docx, lxml, mammoth, markitdown, openpyxl, pandas, pptx, xlrd' \
    && command -v soffice >/dev/null \
    && command -v pandoc >/dev/null \
    && fc-list :lang=zh | grep -q .

EXPOSE 8001

ENTRYPOINT ["tini", "--"]
CMD ["sh", "-c", "cd /app/backend && exec uvicorn app.gateway.app:app --host 0.0.0.0 --port ${BACKEND_PORT:-8001}"]