comment-links-to-changed-games-in-pull-requests.yml

name: Comment with links to test the game(s) changed in a PR
on:
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Get changed files
        id: changed-game-files
        uses: tj-actions/changed-files@v23.1
        with:
          files: |
            examples/**/*.json

      - name: Output links to all changed game(s) as markdown
        id: changed-games-markdown
        run: |
          CHANGED_GAMES_LINKS=""
          for file in ${{ steps.changed-game-files.outputs.all_changed_files }}; do
            CHANGED_GAMES_LINKS+="* https://editor.gdevelop.io?project=https://raw.githubusercontent.com/GDevelopApp/GDevelop-examples/$(echo ${GITHUB_HEAD_REF})/$file
          "
          done
          [ -z "$CHANGED_GAMES_LINKS" ] && CHANGED_GAMES_LINKS="*No games are changed in this Pull Request.*"

          # Support multiple lines
          CHANGED_GAMES_LINKS="${CHANGED_GAMES_LINKS//'%'/'%25'}"
          CHANGED_GAMES_LINKS="${CHANGED_GAMES_LINKS//$'\n'/'%0A'}"
          CHANGED_GAMES_LINKS="${CHANGED_GAMES_LINKS//$'\r'/'%0D'}"

          echo "::set-output name=changed-games-links::$CHANGED_GAMES_LINKS"

      - name: Find the existing comment about games in the PR
        uses: peter-evans/find-comment@v2
        id: fc
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-author: 'github-actions[bot]'
          body-includes: "### Preview the game(s) changed or added in this Pull Request"

      - name: Create or update comment
        uses: peter-evans/create-or-update-comment@v2
        with:
          comment-id: ${{ steps.fc.outputs.comment-id }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            ### Preview the game(s) changed or added in this Pull Request

            ${{ steps.changed-games-markdown.outputs.changed-games-links }}

            ---
            This is an automatic message displaying links to the games in this PR - double check the JSON in case of doubt.
          edit-mode: replace