/** 店铺密钥列表加载模型（任务 82）：解析 ShopKeyPageVo(camel) 密钥行，纯逻辑。 */
import { unwrap } from '../../api/envelope.ts'
import {
  emptyShopKeyPageResult,
  toSensitiveString,
  type IpWhitelistStatus,
  type ShopKeyItem,
  type ShopKeyPageResult,
} from './shop-dto.ts'

const IP_WHITELIST_VALUES: readonly string[] = ['UNKNOWN', 'ALLOWED', 'BLOCKED']

function text(value: unknown): string {
  return typeof value === 'string' ? value.trim() : ''
}

function numberOrNull(value: unknown): number | null {
  return typeof value === 'number' && Number.isFinite(value) ? Math.floor(value) : null
}

/** 归一白名单状态；未知/缺省一律回 UNKNOWN。 */
export function normalizeIpWhitelistStatus(value: unknown): IpWhitelistStatus {
  const textValue = typeof value === 'string' ? value.trim().toUpperCase() : ''
  return (IP_WHITELIST_VALUES.includes(textValue) ? textValue : 'UNKNOWN') as IpWhitelistStatus
}

/** 解析单条店铺密钥行；缺 id 视为无效。 */
export function toShopKeyItem(raw: unknown): ShopKeyItem | null {
  if (!raw || typeof raw !== 'object') return null
  const record = raw as Record<string, unknown>
  const id = numberOrNull(record.id)
  if (id === null) return null
  const item: ShopKeyItem = {
    id,
    remarkName: text(record.remarkName ?? record.remark_name),
    ziniaoAccountName: text(record.ziniaoAccountName ?? record.ziniao_account_name),
    ziniaoToken: toSensitiveString(text(record.ziniaoToken ?? record.ziniao_token)),
    ipWhitelistStatus: normalizeIpWhitelistStatus(record.ipWhitelistStatus ?? record.ip_whitelist_status),
    ipWhitelistMessage: text(record.ipWhitelistMessage ?? record.ip_whitelist_message),
  }
  const checkedAt = text(record.ipWhitelistCheckedAt ?? record.ip_whitelist_checked_at)
  if (checkedAt) item.ipWhitelistCheckedAt = checkedAt
  const createdAt = text(record.createdAt ?? record.created_at)
  if (createdAt) item.createdAt = createdAt
  const updatedAt = text(record.updatedAt ?? record.updated_at)
  if (updatedAt) item.updatedAt = updatedAt
  return item
}

/** 归一化密钥分页负载（信封或已解包 VO）为前端结果；缺省字段回默认。 */
export function parseShopKeyPage(payload: unknown): ShopKeyPageResult {
  const out = emptyShopKeyPageResult()
  const core = unwrap<unknown>(payload)
  if (!core || typeof core !== 'object') return out
  const record = core as Record<string, unknown>
  if (Array.isArray(record.items)) {
    out.items = record.items
      .map((raw) => toShopKeyItem(raw))
      .filter((item): item is ShopKeyItem => item !== null)
  }
  if (typeof record.total === 'number') out.total = Math.floor(record.total)
  if (typeof record.page === 'number' && record.page >= 1) out.page = Math.floor(record.page)
  const rawSize = record.pageSize ?? record.page_size
  if (typeof rawSize === 'number' && rawSize >= 1) out.pageSize = Math.floor(rawSize)
  return out
}