name: Close issues with unchanged bad titles

on:
  schedule:
    - cron: '0 */6 * * *' # Every 6 hours

permissions:
  issues: write

jobs:
  close-stale:
    runs-on: ubuntu-latest
    steps:
      - name: Close stale invalid-title issues
        uses: actions/github-script@v7
        with:
          script: |
            const badTitles = [
              "[bug]", "bug report", "bug", "issue",
              "help", "question", "test", "...", "untitled"
            ];

            const { data: issues } = await github.rest.issues.listForRepo({
              owner: context.repo.owner,
              repo: context.repo.repo,
              labels: 'invalid-title',
              state: 'open',
              per_page: 100,
            });

            const twentyFourHoursAgo = new Date(Date.now() - 24 * 60 * 60 * 1000);

            for (const issue of issues) {
              const createdAt = new Date(issue.created_at);
              if (createdAt > twentyFourHoursAgo) continue; // grace period not over yet

              const titleLower = issue.title.trim().toLowerCase();

              if (!badTitles.includes(titleLower)) {
                // Title was fixed — remove the label and move on
                await github.rest.issues.removeLabel({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: issue.number,
                  name: 'invalid-title',
                });
                continue;
              }

              // Still a bad title after 24h — close it
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: issue.number,
                body: [
                  '## Issue closed',
                  '',
                  'This issue has been automatically closed because the title was not updated within 24 hours.',
                  '',
                  'Feel free to open a new issue with a descriptive title that summarizes the problem.',
                ].join('\n'),
              });

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