import { hasRemoteConfig } from '@/utils/runtime-config.js'
import { normalizeGenealogyPathId } from './genealogy-contract.js'
import {
  normalizeGenealogyMemberOptions,
  normalizeGenealogyMembers,
  normalizeMemberUpdatePayload
} from './genealogy-member-contract.js'
import { normalizeResourcePathId } from './request-normalizers.js'
import { createRequestError, requestStrict } from './request-client.js'

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

const writeMembership = (url, method, data, label, requestOptions) => {
  requireRemoteMembership(label, '写入')
  return requestStrict({
    url,
    method,
    ...(data === undefined ? {} : { data })
  }, {
    requestController: requestOptions.requestController ?? null
  })
}

const deleteMembership = async (url, label, requestOptions) => {
  requireRemoteMembership(label, '写入')
  await requestStrict({ url, method: 'DELETE' }, {
    requireData: false,
    requestController: requestOptions.requestController ?? null
  })
  return null
}

export const genealogyMemberApi = {
  async getMembers(genealogyId, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    requireRemoteMembership('家谱成员', '读取')
    const members = await requestStrict({
      url: `/genealogy/app/genealogies/${normalizedGenealogyId}/members`,
      method: 'GET'
    }, {
      requestController: requestOptions.requestController ?? null
    })
    return normalizeGenealogyMembers(members, normalizedGenealogyId)
  },

  async getMemberOptions(genealogyId, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    requireRemoteMembership('成员选项', '读取')
    const memberOptions = await requestStrict({
      url: `/genealogy/app/genealogies/${normalizedGenealogyId}/members/options`,
      method: 'GET'
    }, {
      requestController: requestOptions.requestController ?? null
    })
    return normalizeGenealogyMemberOptions(memberOptions)
  },

  async updateMember(genealogyId, memberId, payload, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    const normalizedMemberId = normalizeResourcePathId(memberId, '成员标识')
    const member = await writeMembership(
      `/genealogy/app/genealogies/${normalizedGenealogyId}/members/${normalizedMemberId}`,
      'PUT',
      normalizeMemberUpdatePayload(payload),
      '家谱成员',
      requestOptions
    )
    return normalizeGenealogyMembers([member], normalizedGenealogyId)[0]
  },

  async unlinkMemberLineagePerson(genealogyId, memberId, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    const normalizedMemberId = normalizeResourcePathId(memberId, '成员标识')
    return deleteMembership(
      `/genealogy/app/genealogies/${normalizedGenealogyId}/members/${normalizedMemberId}/lineage-person`,
      '成员世系绑定',
      requestOptions
    )
  },

  async removeMember(genealogyId, memberId, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    const normalizedMemberId = normalizeResourcePathId(memberId, '成员标识')
    return deleteMembership(
      `/genealogy/app/genealogies/${normalizedGenealogyId}/members/${normalizedMemberId}`,
      '家谱成员',
      requestOptions
    )
  },

  async leaveGenealogy(genealogyId, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    return deleteMembership(
      `/genealogy/app/genealogies/${normalizedGenealogyId}/members/me`,
      '退出家谱',
      requestOptions
    )
  },

  async transferGenealogyOwner(genealogyId, targetMemberId, requestOptions = {}) {
    const normalizedGenealogyId = normalizeGenealogyPathId(genealogyId)
    return writeMembership(
      `/genealogy/app/genealogies/${normalizedGenealogyId}/members/owner-transfer`,
      'PUT',
      { targetMemberId: normalizeResourcePathId(targetMemberId, '目标成员标识') },
      '家谱所有者转让',
      requestOptions
    )
  }
}