autocomment-iss-close.yml

name: Comment on Issue Close  # Name of the GitHub Action workflow

on:
  issues:
    types: [closed]  # Trigger the workflow when an issue is closed

jobs:
  greet-on-close:
    runs-on: ubuntu-latest  # Use the latest Ubuntu runner for the job
    permissions:
      issues: write  # Grant permission to write to issues

    steps:
      - name: Greet User  # Step to greet the user when the issue is closed
        uses: actions/github-script@v5  # Use the GitHub script action to run a custom script
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}  # Use the GitHub token stored in secrets for authentication
          script: |
            const issue = context.payload.issue;  # Get the issue details from the context payload
            const issueCreator = issue.user.login;  # Get the username of the issue creator
            const issueNumber = issue.number;  # Get the issue number

            const greetingMessage = `Hello @${issueCreator}! Your issue #${issueNumber} has been closed. Thank you for your contribution!`;  # Create a greeting message

            // Use the GitHub API to create a comment on the closed issue
            github.rest.issues.createComment({
              owner: context.repo.owner,  # Repository owner
              repo: context.repo.repo,  # Repository name
              issue_number: issueNumber,  # Issue number
              body: greetingMessage  # Comment body with the greeting message
            });