import { agentRequest } from './agentClient.js';
import { listOpenJobHistory, updateJobHistory } from './store.js';

let timer = null;

export function startJobPoller() {
  if (timer) return;
  timer = setInterval(pollJobs, 5000);
  timer.unref?.();
  pollJobs();
}

async function pollJobs() {
  const jobs = listOpenJobHistory();
  await Promise.all(jobs.map(async (history) => {
    try {
      const job = await agentRequest({
        id: history.node_id,
        baseUrl: history.base_url,
        token: history.token,
      }, `/jobs/${encodeURIComponent(history.agent_job_id)}`, { timeout: 10000 });

      updateJobHistory(history.id, {
        status: job.status,
        error: job.error,
        currentStep: job.currentStep,
        snapshotId: findSnapshotId(job),
        finishedAt: job.finishedAt,
      });
    } catch (error) {
      updateJobHistory(history.id, {
        status: 'failed',
        error: error.message,
        finishedAt: new Date().toISOString(),
      });
    }
  }));
}

function findSnapshotId(job) {
  const line = [...(job.logs || [])].reverse().find((entry) => /^snapshot [a-f0-9]+ saved$/i.test(entry));
  return line ? line.split(' ')[1] : null;
}