import {
  fromApiGenealogyAccess,
  isGenealogyJoinMode,
  isGenealogyVisibility
} from '@/utils/genealogy/access-policy.js'
import { normalizeBusinessFileAccess } from './business-file-contract.js'
import { createRequestError } from './request-client.js'
import { assertPlainPayload, normalizeOssIdString } from './request-normalizers.js'
import {
  normalizeOptionalNonnegativeInteger,
  normalizeResponseText
} from './response-normalizers.js'

const normalizeGenealogyResponseText = (value, label) => normalizeResponseText(value, label, {
  code: 'GENEALOGY_RESPONSE_INVALID',
  subject: '我的家谱响应'
})

const normalizeGenealogySettingsResponseText = (value, label) => normalizeResponseText(value, label, {
  code: 'GENEALOGY_SETTINGS_RESPONSE_INVALID',
  subject: '家谱设置响应'
})

export const GENEALOGY_LIFECYCLE_STATUS = Object.freeze({
  NORMAL: 'normal',
  ARCHIVED: 'archived',
  DELETE_PENDING: 'delete_pending'
})

const genealogyLifecycleStatuses = new Set(
  Object.values(GENEALOGY_LIFECYCLE_STATUS)
)

const normalizeGenealogyLifecycleStatus = (value, code) => {
  const status = normalizeResponseText(value, 'lifecycleStatus', {
    code,
    subject: '家谱响应'
  })
  if (!genealogyLifecycleStatuses.has(status)) {
    throw createRequestError('家谱生命周期状态无效', code)
  }
  return status
}

const normalizeGenealogyAccessValue = (value, field, isValid, code) => {
  const normalized = normalizeResponseText(value, field, {
    code,
    subject: '家谱响应'
  })
  if (normalized && !isValid(normalized)) {
    throw createRequestError(`家谱字段 ${field} 无效`, code)
  }
  return normalized
}

const normalizeGenealogyCapabilities = (value, code) => {
  const capabilities = {}
  for (const field of ['canManage', 'canEditContent', 'canArchive', 'canRestore']) {
    if (typeof value[field] !== 'boolean') {
      throw createRequestError(`家谱权限字段 ${field} 无效`, code)
    }
    capabilities[field] = value[field]
  }
  return capabilities
}

const normalizeMyGenealogyId = (value) => {
  if (typeof value === 'string' && /^[1-9]\d*$/.test(value)) return value
  if (typeof value === 'number' && Number.isSafeInteger(value) && value > 0) return String(value)
  throw createRequestError('我的家谱响应包含无效标识', 'GENEALOGY_RESPONSE_INVALID')
}

export const normalizeGenealogyPathId = (value) => {
  const id = typeof value === 'number' && Number.isSafeInteger(value) ? String(value) : value
  if (typeof id !== 'string' || !/^[1-9]\d*$/.test(id)) {
    throw createRequestError('家谱标识无效', 'GENEALOGY_ID_INVALID')
  }
  return id
}

export const normalizeCreatedGenealogy = (value) => {
  if (!value || typeof value !== 'object' || Array.isArray(value)) {
    throw createRequestError('创建家谱响应无效', 'GENEALOGY_RESPONSE_INVALID')
  }
  const id = value.genealogyId
  if (typeof id === 'string' && /^[1-9]\d*$/.test(id)) return { id }
  if (typeof id === 'number' && Number.isSafeInteger(id) && id > 0) return { id: String(id) }
  throw createRequestError('创建家谱响应缺少有效标识', 'GENEALOGY_RESPONSE_INVALID')
}

export const normalizeGenealogySettings = (value, expectedGenealogyId) => {
  if (!value || typeof value !== 'object' || Array.isArray(value)) {
    throw createRequestError('家谱设置响应无效', 'GENEALOGY_SETTINGS_RESPONSE_INVALID')
  }
  const id = normalizeMyGenealogyId(value.genealogyId)
  if (id !== expectedGenealogyId) {
    throw createRequestError('家谱设置响应标识不匹配', 'GENEALOGY_SETTINGS_RESPONSE_INVALID')
  }
  const genealogyName = normalizeGenealogySettingsResponseText(value.genealogyName, 'genealogyName')
  const surname = normalizeGenealogySettingsResponseText(value.surname, 'surname')
  const regionCode = normalizeGenealogySettingsResponseText(value.regionCode, 'regionCode')
  if (!genealogyName || !surname || !regionCode) {
    throw createRequestError('家谱设置响应缺少名称、姓氏或地区', 'GENEALOGY_SETTINGS_RESPONSE_INVALID')
  }
  const visibility = normalizeGenealogyAccessValue(
    value.visibility,
    'visibility',
    isGenealogyVisibility,
    'GENEALOGY_SETTINGS_RESPONSE_INVALID'
  )
  const joinMode = normalizeGenealogyAccessValue(
    value.joinMode,
    'joinMode',
    isGenealogyJoinMode,
    'GENEALOGY_SETTINGS_RESPONSE_INVALID'
  )
  const capabilities = normalizeGenealogyCapabilities(
    value,
    'GENEALOGY_SETTINGS_RESPONSE_INVALID'
  )
  return {
    id,
    genealogyName,
    surname,
    ancestralHall: normalizeGenealogySettingsResponseText(value.ancestralHall, 'ancestralHall'),
    originPlace: normalizeGenealogySettingsResponseText(value.originPlace, 'originPlace'),
    regionCode,
    regionName: normalizeGenealogySettingsResponseText(value.regionName, 'regionName'),
    regionFullName: normalizeGenealogySettingsResponseText(value.regionFullName, 'regionFullName'),
    addressDetail: normalizeGenealogySettingsResponseText(value.addressDetail, 'addressDetail'),
    coverFile: normalizeBusinessFileAccess(
      value.coverFile,
      '家谱封面',
      'GENEALOGY_SETTINGS_RESPONSE_INVALID'
    ),
    intro: normalizeGenealogySettingsResponseText(value.intro, 'intro'),
    accessPreset: fromApiGenealogyAccess({ visibility, joinMode }),
    visibility,
    joinMode,
    memberCount: normalizeOptionalNonnegativeInteger(value.memberCount, '家谱成员数量', 'GENEALOGY_SETTINGS_RESPONSE_INVALID'),
    personCount: normalizeOptionalNonnegativeInteger(value.personCount, '家谱人物数量', 'GENEALOGY_SETTINGS_RESPONSE_INVALID'),
    ...capabilities,
    lifecycleStatus: normalizeGenealogyLifecycleStatus(
      value.lifecycleStatus,
      'GENEALOGY_SETTINGS_RESPONSE_INVALID'
    ),
    archivedAt: normalizeGenealogySettingsResponseText(value.archivedAt, 'archivedAt')
  }
}

export const normalizeAppGenealogy = (item) => {
  if (!item || typeof item !== 'object' || Array.isArray(item)) {
    throw createRequestError('我的家谱响应包含无效条目', 'GENEALOGY_RESPONSE_INVALID')
  }
  const name = normalizeGenealogyResponseText(item.genealogyName, 'genealogyName')
  if (!name) {
    throw createRequestError('我的家谱响应缺少家谱名称', 'GENEALOGY_RESPONSE_INVALID')
  }
  const capabilities = normalizeGenealogyCapabilities(item, 'GENEALOGY_RESPONSE_INVALID')
  if (!Number.isSafeInteger(item.memberCount) || item.memberCount < 0) {
    throw createRequestError('我的家谱响应成员数量无效', 'GENEALOGY_RESPONSE_INVALID')
  }
  const personCount = item.personCount ?? null
  if (personCount !== null && (!Number.isSafeInteger(personCount) || personCount < 0)) {
    throw createRequestError('我的家谱响应世系人数无效', 'GENEALOGY_RESPONSE_INVALID')
  }
  const visibility = normalizeGenealogyAccessValue(
    item.visibility,
    'visibility',
    isGenealogyVisibility,
    'GENEALOGY_RESPONSE_INVALID'
  )
  const joinMode = normalizeGenealogyAccessValue(
    item.joinMode,
    'joinMode',
    isGenealogyJoinMode,
    'GENEALOGY_RESPONSE_INVALID'
  )
  return {
    id: normalizeMyGenealogyId(item.genealogyId),
    name,
    surname: normalizeGenealogyResponseText(item.surname, 'surname'),
    hall: normalizeGenealogyResponseText(item.ancestralHall, 'ancestralHall'),
    location:
      normalizeGenealogyResponseText(item.regionFullName, 'regionFullName') ||
      normalizeGenealogyResponseText(item.regionName, 'regionName') ||
      normalizeGenealogyResponseText(item.originPlace, 'originPlace') ||
      normalizeGenealogyResponseText(item.addressDetail, 'addressDetail') ||
      '地区待补',
    memberCount: item.memberCount,
    personCount,
    accessPreset: fromApiGenealogyAccess({ visibility, joinMode }),
    ...capabilities,
    lifecycleStatus: normalizeGenealogyLifecycleStatus(
      item.lifecycleStatus,
      'GENEALOGY_RESPONSE_INVALID'
    ),
    archivedAt: normalizeGenealogyResponseText(item.archivedAt, 'archivedAt'),
    intro: normalizeGenealogyResponseText(item.intro, 'intro'),
    joinTime: normalizeGenealogyResponseText(item.joinTime, 'joinTime')
  }
}

export const normalizeMyGenealogies = (value) => {
  if (!Array.isArray(value)) {
    throw createRequestError('我的家谱响应不是列表', 'GENEALOGY_RESPONSE_INVALID')
  }
  const normalized = value.map((item) => {
    const genealogy = normalizeAppGenealogy(item)
    return {
      id: genealogy.id,
      name: genealogy.name,
      surname: genealogy.surname,
      hall: genealogy.hall,
      location: genealogy.location,
      memberCount: genealogy.memberCount,
      canManage: genealogy.canManage,
      canEditContent: genealogy.canEditContent,
      lifecycleStatus: genealogy.lifecycleStatus,
      archivedAt: genealogy.archivedAt,
      canArchive: genealogy.canArchive,
      canRestore: genealogy.canRestore
    }
  })
  if (new Set(normalized.map((genealogy) => genealogy.id)).size !== normalized.length) {
    throw createRequestError('我的家谱响应包含重复标识', 'GENEALOGY_RESPONSE_INVALID')
  }
  return normalized
}

export const normalizeGenealogyOrderIds = (value) => {
  if (!Array.isArray(value)) {
    throw createRequestError('家谱排序必须是列表', 'GENEALOGY_ORDER_INVALID')
  }
  const ids = value.map((item) => normalizeMyGenealogyId(item))
  if (new Set(ids).size !== ids.length) {
    throw createRequestError('家谱排序不能包含重复家谱', 'GENEALOGY_ORDER_INVALID')
  }
  return ids
}

export const normalizePublicGenealogies = (value) => {
  if (!Array.isArray(value)) {
    throw createRequestError('公开家谱响应不是列表', 'PUBLIC_GENEALOGY_RESPONSE_INVALID')
  }
  const genealogies = value.map((item) => {
    if (!item || typeof item !== 'object' || Array.isArray(item)) {
      throw createRequestError('公开家谱响应包含无效条目', 'PUBLIC_GENEALOGY_RESPONSE_INVALID')
    }
    const id = normalizeMyGenealogyId(item.genealogyId)
    const name = normalizeGenealogyResponseText(item.genealogyName, 'genealogyName')
    if (!name) {
      throw createRequestError('公开家谱响应缺少家谱名称', 'PUBLIC_GENEALOGY_RESPONSE_INVALID')
    }
    const memberCount = normalizeOptionalNonnegativeInteger(
      item.memberCount,
      '公开家谱成员数量',
      'PUBLIC_GENEALOGY_RESPONSE_INVALID'
    )
    if (item.canManage !== undefined && typeof item.canManage !== 'boolean') {
      throw createRequestError('公开家谱管理权限无效', 'PUBLIC_GENEALOGY_RESPONSE_INVALID')
    }
    return {
      id,
      name,
      surname: normalizeGenealogyResponseText(item.surname, 'surname'),
      location:
        normalizeGenealogyResponseText(item.regionFullName, 'regionFullName') ||
        normalizeGenealogyResponseText(item.regionName, 'regionName') ||
        normalizeGenealogyResponseText(item.originPlace, 'originPlace') ||
        normalizeGenealogyResponseText(item.addressDetail, 'addressDetail'),
      intro: normalizeGenealogyResponseText(item.intro, 'intro'),
      memberCount,
      canManage: item.canManage === true
    }
  })
  if (new Set(genealogies.map((genealogy) => genealogy.id)).size !== genealogies.length) {
    throw createRequestError('公开家谱响应包含重复标识', 'PUBLIC_GENEALOGY_RESPONSE_INVALID')
  }
  return genealogies
}

export const projectPreviewPublicGenealogies = (value) =>
  value.map((item) => ({
    id: String(item.id),
    name: String(item.name || '未命名家谱'),
    surname: String(item.surname || ''),
    location: String(item.location || ''),
    intro: String(item.publicDescription || ''),
    memberCount: Number.isSafeInteger(item.memberCount) ? item.memberCount : 0,
    canManage: false
  }))

const normalizeGenealogyWriteText = (value, field, { required = false } = {}) => {
  if (value === undefined || value === null) {
    if (required) throw new TypeError(`创建家谱缺少 ${field}`)
    return ''
  }
  if (typeof value !== 'string') throw new TypeError(`创建家谱字段 ${field} 必须是字符串`)
  const normalized = value.trim()
  if (required && !normalized) throw new TypeError(`创建家谱缺少 ${field}`)
  return normalized
}

const GENEALOGY_WRITE_FIELDS = new Set([
  'genealogyName',
  'surname',
  'regionCode',
  'ancestralHall',
  'originPlace',
  'addressDetail',
  'intro',
  'coverOssId',
  'visibility',
  'joinMode'
])

const assertGenealogyWritePayload = (payload, operation) => {
  assertPlainPayload(payload, GENEALOGY_WRITE_FIELDS, `${operation}家谱请求`)
}

export const normalizeGenealogyCreatePayload = (payload) => {
  assertGenealogyWritePayload(payload, '创建')
  const normalizedPayload = {
    genealogyName: normalizeGenealogyWriteText(payload.genealogyName, '谱名', { required: true }),
    surname: normalizeGenealogyWriteText(payload.surname, '姓氏', { required: true }),
    regionCode: normalizeGenealogyWriteText(payload.regionCode, '地区代码', { required: true })
  }
  for (const field of ['ancestralHall', 'originPlace', 'addressDetail', 'intro']) {
    const normalizedText = normalizeGenealogyWriteText(payload[field], field)
    if (normalizedText) normalizedPayload[field] = normalizedText
  }
  const visibility = normalizeGenealogyWriteText(payload.visibility, 'visibility')
  if (visibility) {
    if (!isGenealogyVisibility(visibility)) throw new TypeError('创建家谱字段 visibility 无效')
    normalizedPayload.visibility = visibility
  }
  const joinMode = normalizeGenealogyWriteText(payload.joinMode, 'joinMode')
  if (joinMode) {
    if (!isGenealogyJoinMode(joinMode)) throw new TypeError('创建家谱字段 joinMode 无效')
    normalizedPayload.joinMode = joinMode
  }
  if (payload.coverOssId !== undefined && payload.coverOssId !== null && payload.coverOssId !== '') {
    normalizedPayload.coverOssId = normalizeOssIdString(payload.coverOssId, '创建家谱字段 coverOssId')
  }
  return normalizedPayload
}

export const normalizeGenealogyUpdatePayload = (payload) => {
  assertGenealogyWritePayload(payload, '更新')
  const normalizedPayload = {}
  for (const field of [
    'genealogyName',
    'surname',
    'regionCode',
    'ancestralHall',
    'originPlace',
    'addressDetail',
    'intro'
  ]) {
    if (!Object.prototype.hasOwnProperty.call(payload, field)) continue
    const normalizedText = normalizeGenealogyWriteText(payload[field], field)
    if (normalizedText) normalizedPayload[field] = normalizedText
  }
  if (Object.prototype.hasOwnProperty.call(payload, 'visibility')) {
    const visibility = normalizeGenealogyWriteText(payload.visibility, 'visibility')
    if (!isGenealogyVisibility(visibility)) throw new TypeError('更新家谱字段 visibility 无效')
    normalizedPayload.visibility = visibility
  }
  if (Object.prototype.hasOwnProperty.call(payload, 'joinMode')) {
    const joinMode = normalizeGenealogyWriteText(payload.joinMode, 'joinMode')
    if (!isGenealogyJoinMode(joinMode)) throw new TypeError('更新家谱字段 joinMode 无效')
    normalizedPayload.joinMode = joinMode
  }
  if (Object.prototype.hasOwnProperty.call(payload, 'coverOssId') && payload.coverOssId !== null && payload.coverOssId !== '') {
    normalizedPayload.coverOssId = normalizeOssIdString(payload.coverOssId, '更新家谱字段 coverOssId')
  }
  if (!Object.keys(normalizedPayload).length) throw new TypeError('请至少填写一项需要更新的家谱信息')
  return normalizedPayload
}

export const normalizeGenealogyQuota = (value) => {
  if (!value || typeof value !== 'object' || Array.isArray(value)) {
    throw createRequestError('家谱配额响应无效', 'GENEALOGY_QUOTA_RESPONSE_INVALID')
  }
  const normalizeUsage = (field) => {
    if (!Number.isSafeInteger(value[field]) || value[field] < 0) {
      throw createRequestError(`家谱配额字段 ${field} 无效`, 'GENEALOGY_QUOTA_RESPONSE_INVALID')
    }
    return value[field]
  }
  const normalizeLimit = (field) => {
    if (!Number.isSafeInteger(value[field]) || value[field] < -1) {
      throw createRequestError(`家谱配额字段 ${field} 无效`, 'GENEALOGY_QUOTA_RESPONSE_INVALID')
    }
    return value[field]
  }
  const normalizePermission = (field) => {
    if (typeof value[field] !== 'boolean') {
      throw createRequestError(`家谱配额字段 ${field} 无效`, 'GENEALOGY_QUOTA_RESPONSE_INVALID')
    }
    return value[field]
  }
  return {
    createUsed: normalizeUsage('createUsed'),
    createLimit: normalizeLimit('createLimit'),
    createRemaining: normalizeLimit('createRemaining'),
    canCreate: normalizePermission('canCreate'),
    joinUsed: normalizeUsage('joinUsed'),
    joinLimit: normalizeLimit('joinLimit'),
    joinRemaining: normalizeLimit('joinRemaining'),
    canJoin: normalizePermission('canJoin')
  }
}