first_issue_reply.yml

name: First issue reply

on:
  issue_comment:
    types: [created]

jobs:
  firstIssueReply:
    # Only when it is an issue rather than a PR
    if: ${{ !github.event.issue.pull_request && github.event.comment.author_association == 'NONE' }}
    name: First issue reply
    runs-on: ubuntu-latest

    # For some reason, with only issue:write perms the action fails even though that's all we're doing
    permissions: write-all

    steps:
      - name: Checkout main repository
        uses: actions/checkout@v5

      - name: Check for existing bot comments
        id: check-comments
        run: |
          ISSUE_NUMBER=${{ github.event.issue.number }}
          BOT_COMMENT_EXISTS=$(gh issue view "$ISSUE_NUMBER" --json comments --jq '.comments[].body' | grep -q "Hi @$USERNAME," && echo "true" || echo "false")
          echo "bot_comment_exists=$BOT_COMMENT_EXISTS" >> $GITHUB_ENV
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          USERNAME: ${{ github.event.comment.user.login }}

      - name: First issue reply
        if: env.bot_comment_exists == 'false'
        run: |
          gh issue comment "$ISSUE" --body "Hi @$USERNAME,"$'\n\n'"$(cat .github/FIRST_ISSUE_REPLY.md)"
        env:
          ISSUE: ${{ github.event.issue.number }}
          USERNAME: ${{ github.event.comment.user.login }}
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}