name: Weblate Merge Product PO (SLE-16)

permissions:
  # it merges the updated translations and creates a pull request with the changes
  contents: write
  pull-requests: write

on:
  schedule:
    # run every Monday at 2:35AM UTC
    - cron: "35 2 * * Mon"

  # allow running manually
  workflow_dispatch:

jobs:
  merge-po:
    # allow pushing and creating pull requests
    permissions:
      contents: write
      pull-requests: write

    # do not run in forks
    if: ${{ !github.event.repository.fork }}

    runs-on: ubuntu-latest

    container:
      image: registry.opensuse.org/opensuse/leap:16.0
      volumes:
        # bind mount the GitHub CLI tool from the Ubuntu host,
        # it is a statically linked binary so it should work also in Leap
        - /usr/bin/gh:/usr/bin/gh

    steps:
      - name: Configure and refresh repositories
        run: |
          # disable unused repositories to have a faster refresh
          zypper modifyrepo -d openSUSE:repo-openh264 && \
            zypper --non-interactive ref

      - name: Install tools
        run: zypper --non-interactive install --no-recommends git gettext-tools npm-default

      - name: Configure Git
        run: |
          git config --global user.name "YaST Bot"
          git config --global user.email "yast-devel@opensuse.org"

      - name: Checkout sources
        uses: actions/checkout@v4
        with:
          path: agama
          # checkout the SLE-16 branch
          ref: SLE-16

      - name: Checkout Agama-weblate sources
        uses: actions/checkout@v4
        with:
          path: agama-weblate
          repository: ${{ github.repository_owner }}/agama-weblate
          # checkout the SLE-16 branch
          ref: SLE-16
  
      - name: Validate the product PO files
        working-directory: ./agama-weblate
        run:  ls products/*.po | xargs -n1 msgfmt --check-format -o /dev/null
  
      - name: Install NPM packages
        working-directory: ./agama/.github/workflows/product_translations
        run:  npm ci
  
      - name: Update product files with translations
        env:
          NODE_PATH: ./agama/.github/workflows/product_translations
        run: |
          ${NODE_PATH}/merge_po agama-weblate/products agama/products.d

      - name: Check changes
        id: check_changes
        working-directory: ./agama
        run: |
          git diff products.d > po.diff

          if [ -s po.diff ]; then
            echo "Product files updated"
            # this is an Output Parameter
            # https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-output-parameter
            echo "products_updated=true" >> $GITHUB_OUTPUT
          else
            echo "Product files unchanged"
            echo "products_updated=false" >> $GITHUB_OUTPUT
          fi

          rm po.diff

      - name: Push updated product files
        # run only when a PO file has been updated
        if: steps.check_changes.outputs.products_updated == 'true'
        working-directory: ./agama
        run: |
          # use a unique branch to avoid possible conflicts with already existing branches
          git checkout -b "products_po_merge_sle16_${GITHUB_RUN_ID}"
          git commit -a -m "Update translations in the product files"$'\n\n'"Agama-weblate commit: `git -C ../agama-weblate rev-parse HEAD`"
          git push origin "products_po_merge_sle16_${GITHUB_RUN_ID}"

      - name: Create pull request
        # run only when a PO file has been updated
        if: steps.check_changes.outputs.products_updated == 'true'
        working-directory: ./agama
        run: |
          gh pr create -B SLE-16 -H "products_po_merge_sle16_${GITHUB_RUN_ID}" \
            --label translations --label bot \
            --title "Update translations in the product files (SLE-16)" \
            --body "Updating the product translations from the agama-weblate repository"
        env:
          GH_TOKEN: ${{ github.token }}