name: Retest

on:
  issue_comment:
    types: [created]

jobs:
  retest:
    name: Retest PR
    runs-on: ubuntu-latest
    if: |
      github.event.issue.pull_request &&
      contains(github.event.comment.body, '/retest')
    permissions:
      actions: write
      pull-requests: read

    steps:
      - name: Rerun from Prepare environment
        uses: actions/github-script@v7
        with:
          script: |
            const prNumber = context.issue.number;

            // Get the PR to find the head SHA
            const pr = await github.rest.pulls.get({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: prNumber
            });

            // Find the latest workflow run for this PR
            const runs = await github.rest.actions.listWorkflowRuns({
              owner: context.repo.owner,
              repo: context.repo.repo,
              workflow_id: 'pull-requests.yaml',
              head_sha: pr.data.head.sha
            });

            if (runs.data.workflow_runs.length === 0) {
              core.setFailed('No workflow runs found for this PR');
              return;
            }

            const latestRun = runs.data.workflow_runs[0];
            console.log(`Found workflow run: ${latestRun.id} (${latestRun.status})`);

            // Check if workflow is waiting for approval (fork PRs)
            if (latestRun.conclusion === 'action_required') {
              core.setFailed('Workflow is waiting for approval. A maintainer must approve the workflow first.');
              return;
            }

            // Get jobs for this run
            const jobs = await github.rest.actions.listJobsForWorkflowRun({
              owner: context.repo.owner,
              repo: context.repo.repo,
              run_id: latestRun.id
            });

            // Find "Prepare environment" job
            const prepareJob = jobs.data.jobs.find(j => j.name === 'Prepare environment');

            if (!prepareJob) {
              core.setFailed('Could not find "Prepare environment" job');
              return;
            }

            console.log(`Found job: ${prepareJob.name} (id: ${prepareJob.id}, status: ${prepareJob.status})`);

            // Rerun the job
            await github.rest.actions.reRunJobForWorkflowRun({
              owner: context.repo.owner,
              repo: context.repo.repo,
              job_id: prepareJob.id
            });

            console.log(`✅ Triggered rerun of job "${prepareJob.name}" (${prepareJob.id})`);