import { getServiceChannelGroupList, getServiceChannelList } from '@/api/channel/serviceChannel'
import { getAppGetInfo } from '@/api/ApplicationServices/apps'
import { getServiceProviderGetServiceProvider } from '@/api/interface-serviceProvider/serviceProvider'

function pick(raw: Record<string, any> | undefined, ...keys: string[]) {
  if (!raw) return undefined
  for (const k of keys) {
    const v = raw[k]
    if (v !== undefined && v !== null && v !== '') return v
  }
  return undefined
}

function unwrapPayload(res: any): any {
  if (res == null) return res
  if (typeof res !== 'object') return res
  return res.data ?? res.Data ?? res
}

export type OrderDownstreamCredentials = {
  appKey: string
  appSecret: string
  supplierCode: string
  groupName?: string
}

/** 从订单绑定字段或渠道树解析 itfx 应用密钥与 API 服务商编码（supplierCode） */
export async function resolveOrderDownstreamCredentials(
  order: Record<string, any>
): Promise<OrderDownstreamCredentials> {
  const supplierCode = String(
    pick(order, 'downstreamSupplierCode', 'DownstreamSupplierCode') ?? ''
  ).trim()
  const appKey = String(pick(order, 'downstreamAppKey', 'DownstreamAppKey') ?? '').trim()
  const appId = Number(pick(order, 'downstreamAppId', 'DownstreamAppId') ?? 0)

  if (supplierCode && appKey && Number.isFinite(appId) && appId > 0) {
    const appRaw = unwrapPayload(await getAppGetInfo({ id: appId }))
    const appSecret = String(
      pick(appRaw, 'appSecret', 'AppSecret', 'secret', 'Secret') ?? ''
    ).trim()
    if (!appSecret) {
      throw new Error('应用 AppSecret 未配置')
    }
    return { appKey, appSecret, supplierCode }
  }

  const channelCode = String(pick(order, 'channelCode', 'ChannelCode') ?? '').trim()
  if (!channelCode) {
    throw new Error('订单未绑定服务渠道，无法预报下游')
  }

  const { items } = await getServiceChannelList({ page: 1, pageSize: 500, keyword: channelCode })
  const channel = (items || []).find(
    (row: any) =>
      String(row.channelCode ?? row.ChannelCode ?? '')
        .trim()
        .toLowerCase() === channelCode.toLowerCase()
  )
  if (!channel) {
    throw new Error(`未找到渠道「${channelCode}」`)
  }

  const groupId = Number(channel.groupId ?? channel.GroupId ?? 0)
  if (!Number.isFinite(groupId) || groupId <= 0) {
    throw new Error(`渠道「${channelCode}」未关联服务商分组`)
  }

  const groups = await getServiceChannelGroupList()
  const group = (groups || []).find((g: any) => Number(g.id ?? g.Id) === groupId)
  if (!group) {
    throw new Error('服务商分组不存在或已删除')
  }

  const resolvedAppId = Number(group.appId ?? group.AppId ?? 0)
  const serviceProviderId = Number(group.apiServiceProviderId ?? group.ApiServiceProviderId ?? 0)
  if (!Number.isFinite(resolvedAppId) || resolvedAppId <= 0) {
    throw new Error(`服务商「${group.name ?? group.Name ?? groupId}」未配置应用`)
  }
  if (!Number.isFinite(serviceProviderId) || serviceProviderId <= 0) {
    throw new Error(`服务商「${group.name ?? group.Name ?? groupId}」未配置 API 服务商`)
  }

  const appRaw = unwrapPayload(await getAppGetInfo({ id: resolvedAppId }))
  const resolvedAppKey = String(pick(appRaw, 'appKey', 'AppKey') ?? '').trim()
  const appSecret = String(pick(appRaw, 'appSecret', 'AppSecret', 'secret', 'Secret') ?? '').trim()
  if (!resolvedAppKey || !appSecret) {
    throw new Error('应用 AppKey / AppSecret 未配置')
  }

  const spRaw = unwrapPayload(
    await getServiceProviderGetServiceProvider({ serviceProviderId })
  )
  const resolvedSupplierCode = String(
    pick(spRaw, 'code', 'Code', 'serviceProviderCode', 'ServiceProviderCode') ?? ''
  ).trim()
  if (!resolvedSupplierCode) {
    throw new Error('API 服务商编码（supplierCode）未配置')
  }

  return {
    appKey: resolvedAppKey,
    appSecret,
    supplierCode: resolvedSupplierCode,
    groupName: String(group.name ?? group.Name ?? '').trim() || undefined,
  }
}