import type { ModuleRow } from '@/types/api'

export function formatDateTime(value: string | null | undefined): string {
  if (typeof value !== 'string' || value.trim().length === 0) return '—'
  const parsed = new Date(value)
  if (Number.isNaN(parsed.getTime())) return '—'
  return parsed.toLocaleString('ru-RU')
}

export function moduleIntervalLabel(moduleRow: ModuleRow): string {
  const cron = typeof moduleRow.cron_expr === 'string' ? moduleRow.cron_expr.trim() : ''
  const raw = moduleRow.refresh_interval_sec as unknown
  const interval =
    typeof raw === 'number'
      ? raw
      : typeof raw === 'string' && raw.trim().length > 0
        ? Number(raw)
        : null
  const intervalLabel = interval !== null && Number.isFinite(interval) ? `${interval}с` : ''
  if (cron && intervalLabel) return `${intervalLabel} (${cron})`
  if (cron) return cron
  if (intervalLabel) return intervalLabel
  return '—'
}