name: documentation preview

on:
  pull_request:
    paths:
      - 'doc/**'
      - 'scripts/build-docs.sh'
      - '.github/workflows/docs-preview.yaml'

jobs:
  scripts:
    name: build 
    runs-on: ubuntu-latest
    environment:
      name: 'staging.chatmail.at/doc/relay/'
      url: https://staging.chatmail.at/doc/relay/${{ steps.prepare.outputs.prid }}
    steps:
      - uses: actions/checkout@v4

      - name: initenv 
        run: scripts/initenv.sh

      - name: append venv/bin to PATH
        run: echo `pwd`/venv/bin >>$GITHUB_PATH

      - name: build documentation 
        working-directory: doc
        run: sphinx-build source build

      - name: build documentation second time (for TOC)
        working-directory: doc
        run: sphinx-build source build

      - name: Get Pullrequest ID
        id: prepare
        run: |
          export PULLREQUEST_ID=$(echo "${{ github.ref }}" | cut -d "/" -f3)
          echo "prid=$PULLREQUEST_ID" >> $GITHUB_OUTPUT
          if [ $(expr length "${{ secrets.USERNAME }}") -gt "1" ]; then echo "uploadtoserver=true" >> $GITHUB_OUTPUT; fi
      - run: |
          echo "baseurl: /${{ steps.prepare.outputs.prid }}" >> _config.yml

      - name: Upload preview
        run: |
          mkdir -p "$HOME/.ssh"
          echo "${{ secrets.CHATMAIL_STAGING_SSHKEY }}" > "$HOME/.ssh/key"
          chmod 600 "$HOME/.ssh/key"
          rsync -rILvh -e "ssh -i $HOME/.ssh/key -o StrictHostKeyChecking=no" $GITHUB_WORKSPACE/doc/build/ "${{ secrets.USERNAME }}@chatmail.at:/var/www/html/staging.chatmail.at/doc/relay/${{ steps.prepare.outputs.prid }}/"

      - name: check links 
        working-directory: doc
        run: sphinx-build --builder linkcheck source build