name: Weekly Triage Report

on:
  schedule:
    - cron: '0 7 * * 1'
  workflow_dispatch:

permissions:
  contents: read
  issues: write

jobs:
  weekly-report:
    runs-on: ubuntu-latest
    steps:
      - name: Build weekly summary
        id: summary
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;

            const since = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000).toISOString().split('T')[0];
            const weekLabel = new Date().toISOString().split('T')[0];

            const q = async (query) => {
              const res = await github.rest.search.issuesAndPullRequests({ q: query, per_page: 1 });
              return res.data.total_count;
            };

            const openIssues = await q(`repo:${owner}/${repo} is:issue is:open`);
            const newIssues = await q(`repo:${owner}/${repo} is:issue created:>=${since}`);
            const bugs = await q(`repo:${owner}/${repo} is:issue is:open label:bug`);
            const enhancements = await q(`repo:${owner}/${repo} is:issue is:open label:enhancement`);
            const triage = await q(`repo:${owner}/${repo} is:issue is:open label:triage`);
            const stale = await q(`repo:${owner}/${repo} is:issue is:open label:stale`);
            const unassigned = await q(`repo:${owner}/${repo} is:issue is:open no:assignee`);

            const body = [
              `## Weekly Triage Report (${weekLabel})`,
              '',
              `- Open issues: **${openIssues}**`,
              `- New issues (last 7 days): **${newIssues}**`,
              `- Open bugs: **${bugs}**`,
              `- Open enhancements: **${enhancements}**`,
              `- In triage: **${triage}**`,
              `- Stale: **${stale}**`,
              `- Unassigned: **${unassigned}**`,
              '',
              '### Quick Links',
              `- Triage queue: https://github.com/${owner}/${repo}/issues?q=is%3Aissue+is%3Aopen+label%3Atriage`,
              `- Stale issues: https://github.com/${owner}/${repo}/issues?q=is%3Aissue+is%3Aopen+label%3Astale`,
              `- Unassigned issues: https://github.com/${owner}/${repo}/issues?q=is%3Aissue+is%3Aopen+no%3Aassignee`,
            ].join('\n');

            core.setOutput('title', `Weekly Triage Report - ${weekLabel}`);
            core.setOutput('body', body);

      - name: Publish report issue
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;
            const title = `${{ steps.summary.outputs.title }}`;
            const body = `${{ steps.summary.outputs.body }}`;

            const existingReports = await github.paginate(github.rest.issues.listForRepo, {
              owner,
              repo,
              state: 'open',
              labels: 'triage',
              per_page: 100,
            });

            for (const issue of existingReports) {
              if (issue.pull_request) {
                continue;
              }

              if (issue.title.startsWith('Weekly Triage Report - ') && issue.title !== title) {
                await github.rest.issues.createComment({
                  owner,
                  repo,
                  issue_number: issue.number,
                  body: 'Closing this older weekly triage report before publishing the next one so only one weekly report issue stays open at a time.',
                });

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

            await github.rest.issues.create({
              owner,
              repo,
              title,
              body,
              labels: ['triage']
            });