import { apiClient } from '@/shared/api/client'
import type { ApiResponse, PaginatedResult } from '@/shared/types/types'

export type PickupAccountSource = 'internal' | 'external_platform_managed'
export type PickupSettlementMode = 'owner_wallet' | 'platform_managed'
export type PickupOfflineSettlementStatus = 'none' | 'pending' | 'settled'
export type PickupFinancialAdjustmentStatus = 'settled' | 'pending' | 'recovery_pending'
export type AvailableListingSourceType = '' | 'external' | 'internal'

export interface AdminPickup {
  id: number
  pickup_no: string
  listing_id: number
  listing_no: string
  account_id: number
  account_title: string
  server_region: string
  login_platform: string
  owner_id: number
  owner_phone: string
  admin_id: number
  operator: string
  platform: string
  third_party_order_no: string
  shop_name: string
  raw_shop_name?: string
  account_source: PickupAccountSource
  source_channel: string
  settlement_mode: PickupSettlementMode
  listing_price_cent: number
  order_amount_cent: number
  deposit_amount_cent: number
  owner_price_cent: number
  website_profit_cent: number
  profit_amount_cent: number
  profit_adjustment_cent: number
  effective_profit_amount_cent: number
  seller_ratio: number
  buyer_ratio: number
  account_snapshot?: Record<string, unknown>
  settle_amount_cent: number
  settle_adjustment_cent: number
  effective_settle_amount_cent: number
  status: string
  offline_settlement_status: PickupOfflineSettlementStatus
  offline_settlement_remark: string
  offline_settled_by?: number
  offline_settled_at?: string
  remark: string
  complete_remark: string
  created_at: string
  completed_at?: string
  cancelled_at?: string
}

export interface AdminPickupFinancialAdjustment {
  id: number
  pickup_id: number
  profit_delta_cent: number
  settle_delta_cent: number
  settlement_mode: PickupSettlementMode
  status: PickupFinancialAdjustmentStatus
  reason: string
  created_by: number
  settled_by?: number
  settled_at?: string
  settlement_remark: string
  created_at: string
}

export interface AdminPickupProcessEvent {
  id: number
  stage: string
  action: string
  actor_type: string
  actor_id: number
  actor_name: string
  target_type: string
  target_id?: number
  target_name: string
  content: string
  reason: string
  payload: Record<string, unknown>
  attachment_urls: string[]
  state_before: Record<string, unknown>
  state_after: Record<string, unknown>
  created_at: string
}

export interface AvailableListing {
  id: number
  listing_no: string
  account_id: number
  account_title: string
  server_region: string
  login_platform: string
  owner_id: number
  owner_phone: string
  listing_price_cent: number
  owner_price_cent: number
  owner_pure_price_cent: number
  owner_extra_item_price_cent: number
  owner_total_price_cent: number
  website_profit_cent: number
  seller_ratio: number
  buyer_ratio: number
  account_source: PickupAccountSource
  is_external_upload: boolean
  source_channel: string
  handoff_mode: string
  settlement_mode: string
}

export interface AdminPickupCreateRequest {
  listing_id: number
  operator?: string
  platform?: string
  third_party_order_no?: string
  shop_name?: string
  order_amount_cent?: number
  deposit_amount_cent?: number
  profit_amount_cent?: number
  remark?: string
}

export interface AdminPickupCompleteRequest {
  settle_amount_cent: number
  profit_amount_cent?: number
  complete_remark?: string
}

export interface AdminPickupProfitUpdateRequest {
  profit_amount_cent: number
  reason?: string
}

export interface AdminPickupThirdPartyOrderNoUpdateRequest {
  third_party_order_no: string
}

export interface AdminPickupOfflineSettlementRequest {
  remark?: string
}

export interface AdminPickupFinancialAdjustmentRequest {
  profit_amount_cent?: number
  settle_amount_cent?: number
  reason: string
}

export interface AdminPickupFinancialAdjustmentSettlementRequest {
  remark?: string
}

export interface AdminPickupListQuery {
  page?: number
  page_size?: number
  keyword?: string
  status?: string
  shop_name?: string
  account_source?: PickupAccountSource | ''
  offline_settlement_status?: PickupOfflineSettlementStatus | ''
  operator?: string
  third_party_order_no?: string
  start_time?: string
  end_time?: string
}

export interface PickupShop {
  id: number
  name: string
  platform: string
  status: 'active' | 'disabled'
  sort_order: number
  remark: string
  created_at: string
  updated_at: string
}

export interface PickupShopCreateRequest {
  name: string
  platform?: string
  status?: 'active' | 'disabled'
  sort_order?: number
  remark?: string
}

export interface PickupShopUpdateRequest {
  name: string
  platform?: string
  status: 'active' | 'disabled'
  sort_order?: number
  remark?: string
}

export interface PickupShopQuery {
  keyword?: string
  platform?: string
  status?: string
}

export type PickupShopMappingStatus = 'standard' | 'mapped' | 'unmapped'

export interface PickupShopHistoricalItem {
  source_name: string
  count: number
  mapping_status: PickupShopMappingStatus
  target_shop_id?: number
  target_shop_name?: string
  remark?: string
}

export interface PickupShopHistoricalStats {
  items: PickupShopHistoricalItem[]
  total_pickups: number
  total_shops: number
  standard_count: number
  mapped_count: number
  unmapped_count: number
}

export interface MapHistoricalShopsRequest {
  from_shop_names: string[]
  target_shop_name: string
  create_target_missing?: boolean
  target_platform?: string
  remark?: string
}

export interface MapHistoricalShopsResult {
  updated_pickups_count: number
  target_shop_name: string
  target_shop_id: number
  created_standard_shop: boolean
}

function cleanParams(query: object) {
  return Object.fromEntries(
    Object.entries(query).filter(([, value]) => value !== '' && value !== undefined)
  )
}

export async function fetchAdminPickups(query: AdminPickupListQuery = {}) {
  const { data } = await apiClient.get<ApiResponse<PaginatedResult<AdminPickup>>>(
    '/admin/pickups',
    { params: cleanParams(query) }
  )
  const result = data.data
  return {
    items: Array.isArray(result?.items) ? result.items : [],
    total: Number(result?.total ?? 0),
    page: Number(result?.page ?? query.page ?? 1),
    page_size: Number(result?.page_size ?? query.page_size ?? 20),
  }
}

export async function fetchAdminPickup(id: string | number) {
  const { data } = await apiClient.get<ApiResponse<AdminPickup>>(`/admin/pickups/${id}`)
  return data.data
}

export async function fetchAdminPickupShopOptions(platform = '') {
  const { data } = await apiClient.get<ApiResponse<string[]>>('/admin/pickups/shop-options', {
    params: cleanParams({ platform }),
  })
  return Array.isArray(data.data) ? data.data : []
}

export async function fetchAvailableListings(
  keyword = '',
  page = 1,
  page_size = 20,
  source_type: AvailableListingSourceType = ''
) {
  const { data } = await apiClient.get<ApiResponse<PaginatedResult<AvailableListing>>>(
    '/admin/pickups/available-listings',
    { params: cleanParams({ keyword, page, page_size, source_type }) }
  )
  const result = data.data
  return {
    items: Array.isArray(result?.items) ? result.items : [],
    total: Number(result?.total ?? 0),
  }
}

export async function createAdminPickup(req: AdminPickupCreateRequest) {
  const { data } = await apiClient.post<ApiResponse<AdminPickup>>('/admin/pickups', req)
  return data.data
}

export async function completeAdminPickup(id: number, req: AdminPickupCompleteRequest) {
  const { data } = await apiClient.post<ApiResponse<AdminPickup>>(
    `/admin/pickups/${id}/complete`,
    req
  )
  return data.data
}

export async function confirmAdminPickupOfflineSettlement(
  id: number,
  req: AdminPickupOfflineSettlementRequest = {}
) {
  const { data } = await apiClient.post<ApiResponse<AdminPickup>>(
    `/admin/pickups/${id}/offline-settlement`,
    req
  )
  return data.data
}

export async function updateAdminPickupProfit(id: number, req: AdminPickupProfitUpdateRequest) {
  const { data } = await apiClient.put<ApiResponse<AdminPickup>>(`/admin/pickups/${id}/profit`, req)
  return data.data
}

export async function updateAdminPickupThirdPartyOrderNo(
  id: number,
  req: AdminPickupThirdPartyOrderNoUpdateRequest
) {
  const { data } = await apiClient.put<ApiResponse<AdminPickup>>(
    `/admin/pickups/${id}/third-party-order-no`,
    req
  )
  return data.data
}

export async function createAdminPickupFinancialAdjustment(
  id: number,
  req: AdminPickupFinancialAdjustmentRequest
) {
  const { data } = await apiClient.post<ApiResponse<AdminPickup>>(
    `/admin/pickups/${id}/financial-adjustments`,
    req
  )
  return data.data
}

export async function fetchAdminPickupFinancialAdjustments(id: string | number) {
  const { data } = await apiClient.get<ApiResponse<AdminPickupFinancialAdjustment[]>>(
    `/admin/pickups/${id}/financial-adjustments`
  )
  return Array.isArray(data.data) ? data.data : []
}

export async function fetchAdminPickupProcessEvents(id: string | number) {
  const { data } = await apiClient.get<ApiResponse<{ items: AdminPickupProcessEvent[] }>>(
    `/admin/pickups/${id}/process-events`
  )
  return Array.isArray(data.data?.items) ? data.data.items : []
}

export async function settleAdminPickupFinancialAdjustment(
  id: number,
  req: AdminPickupFinancialAdjustmentSettlementRequest = {}
) {
  const { data } = await apiClient.post<ApiResponse<{ settled: boolean }>>(
    `/admin/pickup-financial-adjustments/${id}/settle`,
    req
  )
  return data.data
}

export async function cancelAdminPickup(id: number, reason: string) {
  const { data } = await apiClient.post<ApiResponse<{ cancelled: boolean }>>(
    `/admin/pickups/${id}/cancel`,
    { reason }
  )
  return data.data
}

export async function fetchPickupShops(query: PickupShopQuery = {}) {
  const { data } = await apiClient.get<ApiResponse<PickupShop[]>>('/admin/pickups/shops', {
    params: cleanParams(query),
  })
  return Array.isArray(data.data) ? data.data : []
}

export async function createPickupShop(req: PickupShopCreateRequest) {
  const { data } = await apiClient.post<ApiResponse<PickupShop>>('/admin/pickups/shops', req)
  return data.data
}

export async function updatePickupShop(id: number, req: PickupShopUpdateRequest) {
  const { data } = await apiClient.put<ApiResponse<PickupShop>>(`/admin/pickups/shops/${id}`, req)
  return data.data
}

export async function deletePickupShop(id: number) {
  const { data } = await apiClient.delete<ApiResponse<{ deleted: boolean }>>(
    `/admin/pickups/shops/${id}`
  )
  return data.data
}

export async function fetchHistoricalShopStats() {
  const { data } = await apiClient.get<ApiResponse<PickupShopHistoricalStats>>(
    '/admin/pickups/shops/historical-stats'
  )
  return data.data
}

export async function mapHistoricalShops(req: MapHistoricalShopsRequest) {
  const { data } = await apiClient.post<ApiResponse<MapHistoricalShopsResult>>(
    '/admin/pickups/shops/map-historical',
    req
  )
  return data.data
}

export async function deleteShopMapping(sourceName: string) {
  const { data } = await apiClient.delete<ApiResponse<{ deleted: boolean }>>(
    '/admin/pickups/shops/mappings',
    { params: { source_name: sourceName } }
  )
  return data.data
}