# The InvenTree dockerfile provides two build targets:
#
# production:
# - Required files are copied into the image
# - Runs InvenTree web server under gunicorn
#
# dev:
# - Expects source directories to be loaded as a run-time volume
# - Runs InvenTree web server under django development server
# - Monitors source files for any changes, and live-reloads server

FROM python:3.11-slim-trixie@sha256:1d6131b5d479888b43200645e03a78443c7157efbdb730e6b48129740727c312 AS inventree_base

# Build arguments for this image
ARG commit_tag=""
ARG commit_hash=""
ARG commit_date=""

ARG data_dir="data"

ENV PYTHONUNBUFFERED=1
ENV PIP_DISABLE_PIP_VERSION_CHECK=1
ENV INVOKE_RUN_SHELL="/bin/bash"

ENV INVENTREE_DOCKER="true"

# InvenTree paths
ENV INVENTREE_HOME="/home/inventree"
ENV INVENTREE_DATA_DIR="${INVENTREE_HOME}/${data_dir}"
ENV INVENTREE_STATIC_ROOT="${INVENTREE_DATA_DIR}/static"
ENV INVENTREE_MEDIA_ROOT="${INVENTREE_DATA_DIR}/media"
ENV INVENTREE_BACKUP_DIR="${INVENTREE_DATA_DIR}/backup"
ENV INVENTREE_PLUGIN_DIR="${INVENTREE_DATA_DIR}/plugins"

ENV INVENTREE_BACKEND_DIR="${INVENTREE_HOME}/src/backend"

# InvenTree configuration files
ENV INVENTREE_CONFIG_FILE="${INVENTREE_DATA_DIR}/config.yaml"
ENV INVENTREE_SECRET_KEY_FILE="${INVENTREE_DATA_DIR}/secret_key.txt"
ENV INVENTREE_OIDC_PRIVATE_KEY_FILE="${INVENTREE_DATA_DIR}/oidc.pem"
ENV INVENTREE_PLUGIN_FILE="${INVENTREE_DATA_DIR}/plugins.txt"

# Worker configuration (can be altered by user)
ENV INVENTREE_GUNICORN_WORKERS="4"
ENV INVENTREE_BACKGROUND_WORKERS="4"

# Default web server address:port
ENV INVENTREE_WEB_ADDR=0.0.0.0
ENV INVENTREE_WEB_PORT=8000

LABEL org.opencontainers.image.vendor="inventree" \
      org.opencontainers.image.title="InvenTree backend server" \
      org.opencontainers.image.description="InvenTree is the open-source inventory management system" \
      org.opencontainers.image.url="https://inventree.org" \
      org.opencontainers.image.documentation="https://docs.inventree.org" \
      org.opencontainers.image.source="https://github.com/inventree/InvenTree" \
      org.opencontainers.image.revision=${commit_hash} \
      org.opencontainers.image.licenses="MIT" \
      org.opencontainers.image.version=${commit_tag}

# Install basic system level packages
RUN apt-get update && apt-get install -y --no-install-recommends \
    git gettext libldap2 wget curl ssh \
    # Weasyprint requirements : https://doc.courtbouillon.org/weasyprint/stable/first_steps.html#alpine-3-12
    weasyprint libpango-1.0-0 libcairo2 poppler-utils \
    # Database client libraries
    postgresql-client mariadb-client \
    # font support
    fontconfig fonts-freefont-ttf fonts-terminus fonts-noto-core fonts-noto-cjk \
    # Cleanup
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Remove heavy python packages installed by weasyprint (that we don't need)
RUN rm -rf /usr/lib/python3/dist-packages/numpy \
    && rm -rf /usr/lib/python3/dist-packages/scipy \
    && rm -rf /usr/lib/python3/dist-packages/sympy

EXPOSE 8000

# Fix invoke command path for InvenTree environment check
RUN python -m pip install --no-cache-dir -U invoke

RUN mkdir -p ${INVENTREE_HOME}
WORKDIR ${INVENTREE_HOME}

COPY contrib/container/requirements.txt base_requirements.txt

COPY tasks.py \
     src/backend/requirements.txt \
     contrib/container/gunicorn.conf.py \
     contrib/container/init.sh \
     ./
RUN chmod +x init.sh

ENTRYPOINT ["/bin/bash", "./init.sh"]

# Multi-stage build to compile project requirements
FROM inventree_base AS builder_stage

# Copy source files
COPY src ${INVENTREE_HOME}/src
COPY tasks.py ${INVENTREE_HOME}/tasks.py

# Install backend build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    pkg-config build-essential \
    libldap2-dev libsasl2-dev libssl-dev \
    libmariadb-dev \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Build and install python dependencies
RUN pip install --user --require-hashes -r base_requirements.txt --no-cache-dir && \
    pip install --user --require-hashes -r requirements.txt --no-cache-dir && \
    pip cache purge && \
    rm -rf /root/.cache/pip

# Install frontend build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    nodejs npm \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

RUN npm install -g n yarn --ignore-scripts && \
    yarn config set network-timeout 600000 -g
RUN bash -c "n lts"
RUN cd "${INVENTREE_HOME}" && invoke int.frontend-compile --extract

# InvenTree production image:
# - Copies required files from local directory
# - Starts a gunicorn webserver
FROM inventree_base AS production

ENV INVENTREE_DEBUG=False

# As .git directory is not available in production image, we pass the commit information via ENV
ENV INVENTREE_COMMIT_HASH="${commit_hash}"
ENV INVENTREE_COMMIT_DATE="${commit_date}"

# Copy source code
COPY src/backend/InvenTree ${INVENTREE_BACKEND_DIR}/InvenTree
COPY src/backend/requirements.txt ${INVENTREE_BACKEND_DIR}/requirements.txt

# Copy compiled dependencies from prebuild image
ENV PATH=/root/.local/bin:$PATH

COPY --from=builder_stage ${INVENTREE_BACKEND_DIR}/InvenTree/web/static/web ${INVENTREE_BACKEND_DIR}/InvenTree/web/static/web
COPY --from=builder_stage /root/.local /root/.local

# Launch the production server
CMD ["sh", "-c", "exec gunicorn -c ./gunicorn.conf.py InvenTree.wsgi -b 0.0.0.0:8000 --chdir ${INVENTREE_BACKEND_DIR}/InvenTree"]

FROM builder_stage AS dev

ENV PATH=/root/.local/bin:$PATH

# Vite server (for local frontend development)
EXPOSE 5173

# The development image requires the source code to be mounted to /home/inventree/
# So from here, we don't actually "do" anything, apart from some file management

ENV INVENTREE_DEBUG=True

# Location for python virtual environment
# If the INVENTREE_PY_ENV variable is set, the entrypoint script will use it!
ENV INVENTREE_PY_ENV="${INVENTREE_DATA_DIR}/env"

WORKDIR ${INVENTREE_HOME}

# Entrypoint ensures that we are running in the python virtual environment
ENTRYPOINT ["/bin/bash", "./contrib/container/init.sh"]

# Launch the development server
CMD ["invoke", "dev.server", "-a", "${INVENTREE_WEB_ADDR}:${INVENTREE_WEB_PORT}"]