name: Docs

on: [push, pull_request]

jobs:
  build:
    name: Build Docs
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: "recursive"
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install tox

      - name: Build docs
        run: |
          tox -e docs

      - name: Slack Notification
        uses: homoluctus/slatify@master
        if: failure()
        with:
          type: ${{ job.status }}
          job_name: '*Docs*'
          commit: true
          url: ${{ secrets.SLACK_BUILD_WEBHOOK }}
          token: ${{ secrets.SLACK_GITHUB_TOKEN }}

      - name: Preserve Docs
        if: ${{ github.event_name == 'push' }}
        run: |
          tar -czvf docs.tar.gz -C docs/_build html rtdpage

      - name: Save artifact
        if: ${{ github.event_name == 'push' }}
        uses: actions/upload-artifact@v4
        with:
          name: docs
          path: ./docs.tar.gz

  deploy:
    name: Deploy Docs
    needs: build
    runs-on: ubuntu-latest
    env:
      DOCS_REPO: platformio/platformio-docs
      DOCS_DIR: platformio-docs
      LATEST_DOCS_DIR: latest-docs
      RELEASE_BUILD: ${{ startsWith(github.ref, 'refs/tags/v') }}
    if: ${{ github.event_name == 'push' }}
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          name: docs
      - name: Unpack artifact
        run: |
          mkdir ./${{ env.LATEST_DOCS_DIR }}
          tar -xzf ./docs.tar.gz -C ./${{ env.LATEST_DOCS_DIR }}
      - name: Delete Artifact
        uses: geekyeggo/delete-artifact@v5
        with:
          name: docs
      - name: Select Docs type
        id: get-destination-dir
        run: |
          if [[ ${{ env.RELEASE_BUILD }} == true ]]; then
            echo "::set-output name=dst_dir::stable"
          else
            echo "::set-output name=dst_dir::latest"
          fi
      - name: Checkout latest Docs
        continue-on-error: true
        uses: actions/checkout@v4
        with:
          repository: ${{ env.DOCS_REPO }}
          path: ${{ env.DOCS_DIR }}
          ref: gh-pages
      - name: Synchronize Docs
        run: |
          rm -rf ${{ env.DOCS_DIR }}/.git
          rm -rf ${{ env.DOCS_DIR }}/en/${{ steps.get-destination-dir.outputs.dst_dir }}
          mkdir -p ${{ env.DOCS_DIR }}/en/${{ steps.get-destination-dir.outputs.dst_dir }}
          cp -rf ${{ env.LATEST_DOCS_DIR }}/html/* ${{ env.DOCS_DIR }}/en/${{ steps.get-destination-dir.outputs.dst_dir }}
          if [[ ${{ env.RELEASE_BUILD }} == false ]]; then
            rm -rf ${{ env.DOCS_DIR }}/page
            mkdir -p ${{ env.DOCS_DIR }}/page
            cp -rf ${{ env.LATEST_DOCS_DIR }}/rtdpage/* ${{ env.DOCS_DIR }}/page
          fi
      - name: Validate Docs
        run: |
          if [ -z "$(ls -A ${{ env.DOCS_DIR }})" ]; then
             echo "Docs folder is empty. Aborting!"
             exit 1
          fi
      - name: Deploy to Github Pages
        uses: peaceiris/actions-gh-pages@v4
        with:
          personal_token: ${{ secrets.DEPLOY_GH_DOCS_TOKEN }}
          external_repository: ${{ env.DOCS_REPO }}
          publish_dir: ./${{ env.DOCS_DIR }}
          commit_message: Sync Docs