name: Create complete Overleaf Docker image with all TeX Live packages
on: [push]

jobs:
  build:
    runs-on:
      labels: ubuntu-latest-privileged
    services:
      docker:
        image: docker:24.0.5-dind
        options: >-
          --privileged
    steps:
      - name: Remove existing container to avoid conflicts, if present
        run: |
          if [ "$(docker ps -aq -f name=temp)" ]; then
            docker rm -f temp
          fi          
      - name: Log in to Gitea Docker registry
        run: echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login ${{ vars.REGISTRY_HOST }} -u ${{ vars.REGISTRY_USER }} --password-stdin
      - name: Get Overleaf version number
        run: |
          curl -sSfL https://raw.githubusercontent.com/overleaf/toolkit/master/lib/config-seed/version -o version.txt
          echo "Image version: $(cat version.txt)"          
      - name: Pull Overleaf Docker image
        run: docker pull sharelatex/sharelatex:latest
      - name: Expand and save Docker image
        run: |
          OVERLEAF_VERSION=$(cat version.txt)
          docker run --name temp --entrypoint /bin/bash sharelatex/sharelatex:latest -c "
            tlmgr option repository https://ftp.tu-chemnitz.de/pub/tug/historic/systems/texlive/2024/tlnet-final && \
            tlmgr update --self --all && \
            tlmgr install scheme-full && \
            luaotfload-tool -fu && \
            tlmgr path add && \
            apt update && apt install -y inkscape lilypond python3-pygments && \
            echo shell_escape = t >> /usr/local/texlive/2024/texmf.cnf && \
            echo 'server_tokens off;' > /etc/nginx/conf.d/security.conf"
          docker commit --change "ENTRYPOINT /sbin/my_init" temp sharelatex-with-texlive-full:${OVERLEAF_VERSION}
          docker tag sharelatex-with-texlive-full:${OVERLEAF_VERSION} sharelatex-with-texlive-full:latest             
      - name: Push customized Docker image to registry
        run: |
          OVERLEAF_VERSION=$(cat version.txt)
          docker tag sharelatex-with-texlive-full:${OVERLEAF_VERSION} ${{ vars.REGISTRY_HOST }}/tex-projects/sharelatex-with-texlive-full:${OVERLEAF_VERSION}
          docker tag sharelatex-with-texlive-full:latest ${{ vars.REGISTRY_HOST }}/tex-projects/sharelatex-with-texlive-full:latest
          docker push ${{ vars.REGISTRY_HOST }}/tex-projects/sharelatex-with-texlive-full:${OVERLEAF_VERSION}
          docker push ${{ vars.REGISTRY_HOST }}/tex-projects/sharelatex-with-texlive-full:latest          
      - name: Clean up
        run: |
          OVERLEAF_VERSION=$(cat version.txt)
          echo "Cleaning up"
          docker rm -f temp
          docker rmi sharelatex/sharelatex:latest
          docker rmi ${{ vars.REGISTRY_HOST }}/tex-projects/sharelatex-with-texlive-full:${OVERLEAF_VERSION}
          docker rmi ${{ vars.REGISTRY_HOST }}/tex-projects/sharelatex-with-texlive-full:latest