check-exported-components.yml

name: Check exported components

on:
  pull_request:

jobs:
  check-components:
    name: Check components changes
    runs-on: ubuntu-latest
    outputs:
      has_changes: ${{ steps.results.outputs.components_changed }}
      current_count: ${{ steps.current-branch.outputs.components_count }}
      target_count: ${{ steps.target-branch.outputs.components_count }}
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.base.ref }}
          fetch-depth: 0

      - name: Get target branch component number
        id: target-branch
        run: |
          COUNT=$(find . -wholename "./src/stories/**/index.stories.tsx" | wc -l)
          echo "components_count=${COUNT}" >> $GITHUB_OUTPUT

      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Get current branch component number
        id: current-branch
        run: |
          COUNT=$(find . -wholename "./src/stories/**/index.stories.tsx" | wc -l)
          echo "components_count=${COUNT}" >> $GITHUB_OUTPUT

      - name: Exit early if there aren't component changes
        id: results
        run: |
          if [ ${{ steps.current-branch.outputs.components_count }} -ne  ${{ steps.target-branch.outputs.components_count }} ]; then
            echo "components_changed=true" >> $GITHUB_OUTPUT
          fi

  check-index-changes:
    name: Check index changes
    runs-on: ubuntu-latest
    needs: [check-components]
    if: needs.check-components.outputs.has_changes == 'true'
    outputs:
      need_changes: ${{ steps.results.outputs.index_not_changed }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - name: Get changed index
        id: changed-index-tsx
        uses: tj-actions/changed-files@v34
        with:
          since_last_remote_commit: true
          files: |
            src/index.tsx

      - name: Check if index hasn't changed
        id: results
        if: steps.changed-index-tsx.outputs.any_changed == 'false'
        run: |
          echo "index_not_changed=true" >> $GITHUB_OUTPUT

  comment-pr:
    runs-on: ubuntu-latest
    needs: [check-index-changes, check-components]
    if: needs.check-index-changes.outputs.need_changes == 'true'
    steps:
      - name: Comment PR
        uses: thollander/actions-comment-pull-request@v2
        with:
          message: |
            Ci sono ${{ needs.check-components.outputs.current_count }} componenti nel tuo branch e ${{ needs.check-components.outputs.target_count }} componenti nel branch target, ma nessuna modifica nell'index.tsx. :man_shrugging: 
            Dovevi esportare qualcosa?
          comment_tag: component_check