this.yml

name: Assign on Comment
on:
  issue_comment:
    types:
      - created

jobs:
  assign:
    runs-on: ubuntu-latest

    steps:
      - name: Check if /assign command is present
        id: check_command
        uses: actions/github-script@v4
        with:
          github-token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
          script: |
            const commentBody = context.payload.comment.body;
            const assignCommand = '/assign';
            const isCommandPresent = commentBody.includes(assignCommand);
            console.log(`Command present: ${isCommandPresent}`);
            console.log(`Comment: ${commentBody}`);
            console.log(`Issue Number: ${context.payload.issue.number}`);
            console.log(`Issue State: ${context.payload.issue.state}`);
            console.log(`Assignees: ${context.payload.issue.assignees.map(assignee => assignee.login)}`);
            console.log(`Issue URL: ${context.payload.issue.html_url}`);
            console.log(`Comment URL: ${context.payload.comment.html_url}`);
            console.log(`Comment Author: ${context.payload.comment.user.login}`);
            console.log(`Repository: ${context.repo.owner}/${context.repo.repo}`);
            console.log(`Repository URL: ${context.payload.repository.html_url}`);
            console.log(`Repository Full Name: ${context.payload.repository.full_name}`);
            console.log(`Repository Name: ${context.payload.repository.name}`);
            console.log(`Repository Owner: ${context.payload.repository.owner.login}`);
            console.log(`Repository Owner URL: ${context.payload.repository.owner.html_url}`);
            console.log(`Event Name: ${context.eventName}`);

            if (isCommandPresent) {
              core.setOutput('assign_issue', true);
            } else {
              core.setOutput('assign_issue', false);
            }

      - name: Assign the issue
        if: steps.check_command.outputs.assign_issue == 'true'
        id: assign_issue
        uses: actions/github-script@v4
        with:
          github-token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
          script: |
            const { owner, repo, number } = context.issue;
            const assignee = context.payload.comment.user.login;
            await github.issues.addAssignees({ owner, repo, issue_number: number, assignees: [assignee] });
            console.log(`Assigned the issue to ${assignee}.`);

      - name: Comment if issue is already assigned
        if: steps.check_command.outputs.assign_issue == 'false' && contains(github.event.comment.body, '/assign')
        id: comment_assigned
        uses: actions/github-script@v4
        with:
          github-token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
          script: |
            const { owner, repo, number } = context.issue;
            const commentBody = 'This issue is already assigned.';
            await github.issues.createComment({ owner, repo, issue_number: number, body: commentBody });
            console.log(`Commented on the issue: ${commentBody}.`);