import { http } from '@/api/http'
import type { PageResult } from '@/types/crud'

/**
 * 老人档案（elder）实体。字段字典锚点见 shared/data-model spec（ltc_elder）。
 * - 日期字段（birthDate/benefitStart 等）后端经 TransformInterceptor 序列化为毫秒时间戳；
 * - idCardNo 列表返回掩码、详情（admin/qc）返回明文；
 * - assessEvidenceFile 为评估结论副本的 MinIO key。
 */
export interface Elder {
  id: string
  locCode?: string
  name: string
  gender: string
  idCardNo: string
  birthDate?: number
  phone?: string | null
  address?: string
  guardianName?: string | null
  guardianPhone?: string | null
  insurNo?: string
  insurType?: string
  insurYears?: number | null
  insurVerifyStatus?: string | null
  insurVerifyDate?: number | null
  assessLevel?: string | null
  careLevel?: string | null
  assessDate?: number | null
  assessOrg?: string | null
  assessEvidenceFile?: string | null
  benefitStart?: number | null
  benefitEnd?: number | null
  treatStatus: string
  statusSource?: string | null
  statusChangeDate?: number | null
  hospStart?: number | null
  hospEnd?: number | null
  note?: string | null
  createdAt?: number
  updatedAt?: number
}

export interface ElderListQuery {
  page: number
  pageSize: number
  name?: string
  treatStatus?: string
}

/** 建档入参（日期字段为 YYYY-MM-DD 字符串，与 staff 建档入参一致）。 */
export interface ElderCreateData {
  locCode: string
  name: string
  gender: string
  idCardNo: string
  phone?: string
  address: string
  guardianName?: string
  guardianPhone?: string
  insurNo: string
  insurType: string
  insurYears?: number
  insurVerifyStatus?: string
  insurVerifyDate?: string
  assessLevel?: string
  careLevel?: string
  assessDate?: string
  assessOrg?: string
  assessEvidenceFile?: string
  benefitStart?: string
  benefitEnd?: string
  hospStart?: string
  hospEnd?: string
  note?: string
}

export interface ElderStatusLog {
  id: string
  elderId: string
  fromStatus: string
  toStatus: string
  changeReason: string
  source: string
  operatorId: string
  evidenceFile: string | null
  changedAt: number
}

/** 老人分页列表（身份证服务端掩码）。 */
export function listElders(query: ElderListQuery, signal?: AbortSignal): Promise<PageResult<Elder>> {
  const params: Record<string, unknown> = { page: query.page, pageSize: query.pageSize }
  if (query.name) params.name = query.name
  if (query.treatStatus) params.treatStatus = query.treatStatus
  return http.get<PageResult<Elder>>('/elder', { params, signal })
}

/** 建档。 */
export function createElder(data: ElderCreateData): Promise<Elder> {
  return http.post<Elder>('/elder', data)
}

/** 详情（admin/qc 身份证明文并留痕，其余掩码）。 */
export function getElder(id: string): Promise<Elder> {
  return http.get<Elder>(`/elder/${id}`)
}

/** 变更待遇状态（changeReason 必填）。 */
export function changeElderStatus(
  id: string,
  data: { toStatus: string; changeReason: string },
): Promise<{ id: string; fromStatus: string; toStatus: string }> {
  return http.post(`/elder/${id}/status`, data)
}

/** 状态变更历史（按时间倒序）。 */
export function getStatusLog(id: string): Promise<ElderStatusLog[]> {
  return http.get<ElderStatusLog[]>(`/elder/${id}/status/log`)
}

/** 上传评估结论副本到 MinIO，返回 file key。 */
export function uploadEvidence(file: File): Promise<{ key: string }> {
  const fd = new FormData()
  fd.append('file', file)
  return http.post<{ key: string }>('/elder/assess-evidence', fd)
}