const typeLabels = {
  device_offline: '设备离线',
  authentication_failed: '认证失败',
  clock_drift: '时间漂移',
  reconciliation_failed: '状态对账失败',
  media_shard_failed: '媒体分片异常',
  control_tunnel_failed: '控制隧道异常'
}

const stateLabels = {
  unacknowledged: '待确认',
  acknowledged: '已确认',
  recovering: '恢复观察',
  recovered: '已恢复'
}

export function alertTypeLabel(value) { return typeLabels[value] || value || '未知类型' }
export function alertStateLabel(value) { return stateLabels[value] || value || '未知状态' }
export function alertStateType(value) { return ({ unacknowledged: 'danger', acknowledged: 'warning', recovering: 'primary', recovered: 'success' })[value] || 'info' }
export function canAcknowledge(item) { return item?.state === 'unacknowledged' && item?.version > 0 }
export function canRecover(item) { return item?.state === 'recovering' && item?.version > 0 }
export function buildOpsAlertQuery(query) {
  return {
    pageIndex: Number(query.pageIndex) || 1,
    pageSize: Number(query.pageSize) || 10,
    alertType: String(query.alertType || '').trim(),
    state: String(query.state || '').trim(),
    keyword: String(query.keyword || '').trim()
  }
}