pulse/packages/upulse/src/commands/status.ts

/**
 * commands/status.ts — systemd workflow service + workflows.db summary
 */

import { Database } from 'bun:sqlite';
import { execSync } from 'node:child_process';
import type { Command } from 'commander';
import { loadConfig, resolveDir } from '../config.js';
import { workflowDataPaths } from '../store.js';

function systemctlStatus(unit: string): string {
  try {
    return execSync(`systemctl --user status ${unit} --no-pager 2>&1`, {
      encoding: 'utf-8',
      maxBuffer: 1024 * 1024,
    });
  } catch (err) {
    const e = err as { stdout?: Buffer; stderr?: Buffer; message?: string };
    return (
      (e.stdout && e.stdout.toString()) ||
      (e.stderr && e.stderr.toString()) ||
      e.message ||
      String(err)
    );
  }
}

export function registerStatusCommand(program: Command): void {
  program
    .command('status')
    .description('Workflow daemon systemd status and store summary')
    .action(() => {
      const config = loadConfig(resolveDir(program.opts().dir));
      const { eventsDbPath } = workflowDataPaths(config);

      console.log('=== systemd (user) ===\n');
      const units = ['pulse-workflow.service', 'pulse.service'];
      for (const u of units) {
        console.log(`--- ${u} ---`);
        console.log(systemctlStatus(u));
        console.log('');
      }

      console.log('=== workflows.db ===\n');
      console.log(`Path: ${eventsDbPath}\n`);

      try {
        const db = new Database(eventsDbPath, { readonly: true });
        try {
          const row = db
            .query('SELECT COUNT(*) AS c, MAX(occurred_at) AS m FROM events')
            .get() as { c: number; m: number | null };
          console.log(`Event count: ${row.c}`);
          if (row.m != null) {
            console.log(`Latest event: ${new Date(row.m).toISOString()}`);
          }
        } finally {
          db.close();
        }
      } catch {
        console.log('(database not readable or missing)');
      }

      console.log('\n=== active topics (recent keys) ===\n');
      try {
        const db = new Database(eventsDbPath, { readonly: true });
        try {
          const recent = db
            .query(
              `SELECT key, kind, occurred_at FROM events
               WHERE key IS NOT NULL AND key != ''
               ORDER BY occurred_at DESC, id DESC
               LIMIT 30`,
            )
            .all() as { key: string; kind: string; occurred_at: number }[];

          const seen = new Set<string>();
          const lines: string[] = [];
          for (const r of recent) {
            if (seen.has(r.key)) continue;
            seen.add(r.key);
            lines.push(
              `  ${r.key}  ${r.kind}  ${new Date(r.occurred_at).toISOString()}`,
            );
            if (lines.length >= 10) break;
          }
          console.log(lines.length ? lines.join('\n') : '  (none)');
        } finally {
          db.close();
        }
      } catch {
        console.log('  (could not query topics)');
      }

      console.log('');
    });
}