import { hasRemoteConfig } from '@/utils/runtime-config.js'
import {
  normalizeRegionCode,
  normalizeRegionParentCode,
  normalizeRegionSelectorItems
} from './region-contract.js'
import {
  createRequestError,
  requestStrict
} from './request-client.js'

const requireRemoteRegion = (label) => {
  if (hasRemoteConfig()) return
  throw createRequestError(`${label}读取需要真实服务，当前本地预览不会伪造结果`, 'REMOTE_READ_REQUIRED')
}

export const regionApi = {
  async getRegionChildren(parentCode, requestOptions = {}) {
    requireRemoteRegion('地区选择')
    const regionChildren = await requestStrict({
      url: '/genealogy/app/region/children',
      method: 'GET',
      data: { parentCode: normalizeRegionParentCode(parentCode) }
    }, {
      requestController: requestOptions.requestController ?? null
    })
    return normalizeRegionSelectorItems(regionChildren)
  },

  async getRegionPath(regionCode, requestOptions = {}) {
    requireRemoteRegion('行政区划路径')
    const regionPath = await requestStrict({
      url: `/genealogy/app/region/path/${encodeURIComponent(normalizeRegionCode(regionCode))}`,
      method: 'GET'
    }, {
      requestController: requestOptions.requestController ?? null
    })
    if (!Array.isArray(regionPath)) {
      throw createRequestError('行政区划路径响应不是列表', 'REGION_PATH_RESPONSE_INVALID')
    }
    return regionPath
  }
}