name: Close unlabeled issues

on:
  schedule:
    - cron: "23 6 * * *" # daily
  workflow_dispatch:
    inputs:
      dry_run:
        description: Log matching issues without commenting or closing them
        required: false
        type: boolean
        default: false

permissions:
  issues: write

jobs:
  close_unlabeled:
    runs-on: ubuntu-latest
    steps:
      - name: Close open issues with no labels
        uses: actions/github-script@v7
        with:
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;
            const inputs = context.payload.inputs || {};

            const dryRun = String(inputs.dry_run || "false").toLowerCase() === "true";
            const closeMarker = "<!-- nuvio-bot:close-unlabeled -->";

            const items = await github.paginate(github.rest.search.issuesAndPullRequests, {
              q: `repo:${owner}/${repo} is:issue is:open no:label`,
              per_page: 100,
            });

            core.info(`Found ${items.length} open unlabeled issues.`);

            for (const item of items) {
              const issueNumber = item.number;

              if (dryRun) {
                core.info(`#${issueNumber}: would comment and close.`);
                continue;
              }

              const comments = await github.paginate(github.rest.issues.listComments, {
                owner,
                repo,
                issue_number: issueNumber,
                per_page: 100,
              });

              const alreadyCommented = comments.some(comment =>
                (comment.body || "").includes(closeMarker)
              );

              if (!alreadyCommented) {
                const body =
                  `${closeMarker}\n` +
                  `Sorry about the churn here, and thanks for taking the time to report this.\n\n` +
                  `Closing this issue because it does not have any labels.\n\n` +
                  `Issue labels and triage rules were introduced later, so older unlabeled issues are no longer tracked reliably.\n\n` +
                  `If you are still facing this problem, please open a new issue using the appropriate issue template and label so it can be triaged correctly.`;

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

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

              core.info(`#${issueNumber}: closed.`);
            }