name: Close broken link issues

on:
  issues:
    types: [opened, edited]

permissions:
  issues: write

jobs:
  close-broken-link-issues:
    if: github.event.issue.state == 'open'
    runs-on: ubuntu-latest
    steps:
      - name: Close issues with only "Broken link" in the title
        uses: actions/github-script@v7
        with:
          script: |
            const title = context.payload.issue.title.trim();
            const isBrokenLinkOnlyTitle = /^broken link\.?$/i.test(title);

            if (!isBrokenLinkOnlyTitle) {
              return;
            }

            const { owner, repo } = context.repo;
            const issueNumber = context.payload.issue.number;
            const newIssueUrl = `https://github.com/${owner}/${repo}/issues/new?assignees=&labels=bug&template=bug_report.md&title=Broken%20link`;

            const mermaidIssuesUrl = 'https://github.com/mermaid-js/mermaid/issues/new';

            const commentBody = [
              `@${context.payload.issue.user.login} This issue was automatically closed because the title only contains "Broken link" without additional details.`,
              '',
              '**Please only open issues here if something is broken in the live editor itself** (e.g. a link fails to load, the editor UI misbehaves, or a feature of mermaid.live does not work).',
              '',
              '**Do not open issues here for syntax errors or invalid Mermaid diagram code.** Those belong in the main Mermaid repository: [mermaid-js/mermaid](https://github.com/mermaid-js/mermaid/issues/new).',
              '',
              'If you are reporting a live editor bug, please include:',
              '- The full URL that failed to load',
              '- What you expected to happen',
              '- Any error messages you saw',
              '',
              `You can [open a new issue in this repo](${newIssueUrl}) with this information, or report diagram syntax issues in the [Mermaid repo](${mermaidIssuesUrl}).`
            ].join('\n');

            await github.rest.issues.createComment({
              owner,
              repo,
              issue_number: issueNumber,
              body: commentBody
            });

            await github.rest.issues.update({
              owner,
              repo,
              issue_number: issueNumber,
              state: 'closed',
              state_reason: 'not_planned'
            });