Function scanSessions

lib/transcript.js:409–464

(cwd, limit = 20)

//  Session Scanner
// ============================================================
function scanSessions(cwd, limit = 20) {
  const dir = path.join(PROJECTS_DIR, getProjectSlug(cwd));
  let files;
  try {
    files = fs.readdirSync(dir).filter(f => f.endsWith('.jsonl'));
  } catch {
    return [];
  }

  const entries = [];
  for (const f of files) {
    const full = path.join(dir, f);
    try {
      const stat = fs.statSync(full);
      entries.push({ file: f, full, mtime: stat.mtimeMs, size: stat.size });
    } catch {}
  }
  entries.sort((a, b) => b.mtime - a.mtime);
  const top = entries.slice(0, limit);

  const sessions = [];
  for (const entry of top) {
    const sessionId = path.basename(entry.file, '.jsonl');
    const info = {
      sessionId,
      summary: '',
      firstPrompt: '',
      lastModified: Math.round(entry.mtime),
      fileSize: entry.size,
      cwd: cwd,
    };

    try {
      const fd = fs.openSync(entry.full, 'r');
      const buf = Buffer.alloc(Math.min(entry.size, 64 * 1024));
      fs.readSync(fd, buf, 0, buf.length, 0);
      fs.closeSync(fd);
      const lines = buf.toString('utf8').split('\n').filter(Boolean);
      for (const line of lines) {
        try {
          const evt = JSON.parse(line);
          if (!info.firstPrompt) {
            info.firstPrompt = extractSessionPrompt(evt);
          }
          if (!info.model && evt.model) {
            info.model = evt.model;
          }
        } catch {}
      }
    } catch {}

    info.summary = info.firstPrompt || 'Untitled';
    sessions.push(info);
  }
  return sessions;
}

// ============================================================