import axios from 'axios'

const TOKEN_KEY = 'hfb_dist_access_token'

export function getStoredToken(): string | null {
  try {
    return localStorage.getItem(TOKEN_KEY)
  } catch {
    return null
  }
}

export function setStoredToken(token: string): void {
  try {
    localStorage.setItem(TOKEN_KEY, token)
  } catch {
    // ignore local storage errors
  }
}

export function clearStoredToken(): void {
  try {
    localStorage.removeItem(TOKEN_KEY)
  } catch {
    // ignore local storage errors
  }
}

const api = axios.create({ baseURL: '/api', withCredentials: true })

api.interceptors.request.use((config) => {
  const token = getStoredToken()
  if (token) {
    config.headers.Authorization = `Bearer ${token}`
  }
  return config
})

api.interceptors.response.use(
  (resp) => resp,
  (error) => {
    if (error?.response?.status === 401) {
      clearStoredToken()
      if (typeof window !== 'undefined' && !window.location.pathname.startsWith('/login')) {
        window.location.href = '/login'
      }
    }
    return Promise.reject(error)
  },
)

export interface ApiResponse<T> {
  data: T
  code?: string | number
  message?: string
}

export function extract<T>(resp: { data: ApiResponse<T> }): T {
  return resp.data.data
}

export function formatMoney(cent: number | undefined | null): string {
  return `¥${((cent ?? 0) / 100).toFixed(2)}`
}

export function formatRatio(ratio: number | undefined | null): string {
  const value = Number(ratio || 0)
  if (!Number.isFinite(value) || value <= 0) return '--'
  return `1:${value.toFixed(1)}`
}

export interface CurrentMember {
  admin_id: number
  username: string
  nickname: string
  is_superadmin: boolean
  site_id?: number
  site_code?: string
  site_name?: string
  domain?: string
  member_type?: string
}

export interface LoginResult {
  token: string
  refresh_token?: string
  member: CurrentMember
}

export async function login(username: string, password: string): Promise<LoginResult> {
  const resp = await api.post<ApiResponse<LoginResult>>('/distribution/auth/login', {
    username,
    password,
  })
  const res = extract(resp)
  if (res.token) {
    setStoredToken(res.token)
  }
  return res
}

export async function getMe(): Promise<CurrentMember> {
  const resp = await api.get<ApiResponse<CurrentMember>>('/distribution/auth/me')
  return extract(resp)
}

export async function logout(): Promise<void> {
  try {
    await api.post('/distribution/auth/logout')
  } finally {
    clearStoredToken()
  }
}

export interface Site {
  id: number
  site_code: string
  site_name: string
  domain: string
  status: string
  display_account_enabled: boolean
  tax_enabled: boolean
  tax_rate_bps: number
  settlement_hold_days?: number
  logo_url?: string
  favicon_url?: string
  banners_json?: string
  announcements_json?: string
  footer_info_json?: string
  aw_recycle_json?: string
  cooperation_feedback_json?: string
  storefront_text_json?: string
  listing_qrcode_url?: string
  receive_ratio_delta?: number
  receive_cost_delta?: number
  admin_user_id?: number
  admin_username?: string
  admin_nickname?: string
  member_type?: string
  created_at: string
}

export interface Rule {
  id: number
  site_id?: number
  mode: string
  version: number
  status: string
  platform_receive_ratio: number
  platform_sell_ratio: number
  distributor_receive_ratio: number
  distributor_sell_ratio: number
  distributor_a_ratio: number
  distributor_b_ratio: number
  service_fee_value: number
  service_fee_unit: string
  payment_fee_bps: number
  tax_enabled: boolean
  tax_rate_bps: number
  effective_from: string
  effective_to?: string
}

export interface DistributionOrder {
  order_id: number
  order_no: string
  site_id: number
  status: string
  handoff_status?: string
  refund_status: string
  settlement_status: string
  distributor_settlement_status?: string
  release_at?: string
  distribution_mode: string
  gross_paid_amount_cent?: number
  refund_amount_cent?: number
  net_paid_amount_cent: number
  payment_fee_cent: number
  service_fee_cent: number
  markup_amount_cent: number
  tax_amount_cent: number
  split_base_amount_cent: number
  rounding_adjustment_cent: number
  created_at: string

  // 商品与租客字段
  listing_no?: string
  title?: string
  game_name?: string
  server_region?: string
  login_platform?: string
  rent_duration_hours?: number
  rented_at?: string
  renter_phone?: string
  renter_nickname?: string
  owner_rent_amount_cent?: number
  base_price_cent?: number
  shelf_markup_cent?: number
  deposit_amount_cent?: number

  // 商户本站收益拆解字段
  distributor_earning_cent?: number
  distributor_role?: string
  distributor_markup_cent?: number
  distributor_split_cent?: number
}

export interface OrderPage {
  items: DistributionOrder[]
  total: number
  page: number
  page_size: number
}

export interface AccountDisplay {
  id: number
  site_id: number
  account_id: number
  listing_id: number
  display_status: string
  markup_amount_cent?: number
  shelf_ratio_delta?: number
  base_ratio?: number
  site_ratio?: number
  listing_no?: string
  title?: string
  game_name?: string
  server_region?: string
  login_platform?: string
  rank_level?: string
  haf_coin_amount?: number
  price_cent?: number
  site_price_cent?: number
  deposit_amount_cent?: number
  listing_status?: string
  in_transaction?: boolean
  listing_site_id?: number | null
  source_channel?: string
}

export interface SyncSiteAccountsRequest {
  listing_ids?: number[]
  clean_stale_listings?: boolean
  default_shelf_ratio_delta?: number
}

export interface SyncSiteAccountsResult {
  synced_count: number
  skipped_count: number
  updated_count?: number
  reenabled_count?: number
  disabled_stale_count?: number
  total_active: number
}

export interface PublicDistributionListing {
  listing_id: number
  listing_no: string
  account_id: number
  title: string
  game_name: string
  server_region: string
  login_platform: string
  rank_level: string
  haf_coin_amount: number
  price_cent: number
  deposit_amount_cent: number
  in_transaction: boolean
  site_code: string
  site_name: string
}

export interface PublicDistributionListingsResult {
  items: PublicDistributionListing[]
  total: number
  page: number
  page_size: number
}

export async function fetchPublicSiteListings(
  siteCode: string,
  page = 1,
  pageSize = 24,
): Promise<PublicDistributionListingsResult> {
  const resp = await api.get<ApiResponse<PublicDistributionListingsResult>>(
    `/distribution/sites/${siteCode}/listings`,
    {
      params: { page, page_size: pageSize },
    },
  )
  return extract(resp)
}

export interface PaymentChannel {
  id: number
  site_id: number
  config_id: number
  priority: number
  status: string
}

export interface SettlementBatch {
  id: number
  site_id: number
  batch_no: string
  period_start: string
  period_end: string
  total_amount_cent: number
  status: string
}

export interface SettlementItem {
  id: number
  order_id: number
  party_role: string
  amount_cent: number
  status: string
}

export interface OnboardSitePayload {
  site_code: string
  site_name: string
  domain: string
  admin_username: string
  admin_password: string
  admin_nickname?: string
  member_type?: string
  display_account_enabled?: boolean
  tax_enabled?: boolean
  tax_rate_bps?: number
  settlement_hold_days?: number
}

export interface OnboardSiteResult {
  site: Site
  rule: Rule
  member: CurrentMember
}

export async function onboardSite(payload: OnboardSitePayload): Promise<OnboardSiteResult> {
  const resp = await api.post<ApiResponse<OnboardSiteResult>>('/admin/distribution/sites/onboard', payload)
  return extract(resp)
}

export async function listSites(): Promise<Site[]> {
  const resp = await api.get<ApiResponse<{ items: Site[] }>>('/admin/distribution/sites')
  return extract(resp).items ?? []
}

export async function updateSite(
  siteID: number,
  payload: Partial<
    Pick<
      Site,
      | 'site_name'
      | 'domain'
      | 'status'
      | 'display_account_enabled'
      | 'tax_enabled'
      | 'tax_rate_bps'
      | 'settlement_hold_days'
      | 'listing_qrcode_url'
      | 'receive_ratio_delta'
      | 'receive_cost_delta'
    >
  >
): Promise<Site> {
  const resp = await api.put<ApiResponse<Site>>(`/admin/distribution/sites/${siteID}`, payload)
  return extract(resp)
}

export async function deleteSite(siteID: number): Promise<{ deleted: boolean }> {
  const resp = await api.delete<ApiResponse<{ deleted: boolean }>>(`/admin/distribution/sites/${siteID}`)
  return extract(resp)
}

export async function resetSiteAdminPassword(siteID: number, newPassword: string): Promise<{ message: string }> {
  const resp = await api.put<ApiResponse<{ message: string }>>(`/admin/distribution/sites/${siteID}/admin-password`, {
    new_password: newPassword,
  })
  return extract(resp)
}

export interface DistributionSiteDefaults {
  default_settlement_hold_days: number
}

// fetchDistributionSiteDefaults 读取新建站点的默认结算冷却天数，供开通表单预填。
export async function fetchDistributionSiteDefaults(): Promise<DistributionSiteDefaults> {
  const resp = await api.get<ApiResponse<DistributionSiteDefaults>>(
    '/admin/distribution/site-defaults'
  )
  return extract(resp)
}

export async function listRules(siteID?: number, mode?: string): Promise<Rule[]> {
  const resp = await api.get<ApiResponse<{ items: Rule[] }>>('/admin/distribution/rules', {
    params: { site_id: siteID || undefined, mode: mode || undefined },
  })
  return extract(resp).items ?? []
}

export interface CreateRulePayload {
  site_id?: number
  mode: string
  distributor_receive_ratio?: number
  platform_sell_ratio?: number
  distributor_sell_ratio?: number
  platform_receive_ratio?: number
  distributor_a_ratio?: number
  distributor_b_ratio?: number
  service_fee_value: number
  service_fee_unit: string
  payment_fee_bps: number
  tax_enabled: boolean
  tax_rate_bps: number
  effective_from?: string
}

export async function createRule(payload: CreateRulePayload): Promise<Rule> {
  const resp = await api.post<ApiResponse<Rule>>('/admin/distribution/rules', payload)
  return extract(resp)
}

export async function updateRuleStatus(id: number, status: string): Promise<Rule> {
  const resp = await api.put<ApiResponse<Rule>>(`/admin/distribution/rules/${id}/status`, { status })
  return extract(resp)
}

export async function listOrders(params: {
  kind?: string
  role?: string
  status?: string
  siteID?: number
  page?: number
  pageSize?: number
  keyword?: string
}): Promise<OrderPage> {
  const resp = await api.get<ApiResponse<OrderPage>>('/admin/distribution/orders', {
    params: {
      kind: params.kind || undefined,
      role: params.role || undefined,
      status: params.status || undefined,
      keyword: params.keyword || undefined,
      site_id: params.siteID || undefined,
      page: params.page || 1,
      page_size: params.pageSize || 20,
    },
  })
  return extract(resp)
}

export async function listAccountDisplays(siteID: number, status?: string): Promise<AccountDisplay[]> {
  const resp = await api.get<ApiResponse<{ items: AccountDisplay[] }>>('/admin/distribution/accounts', {
    params: { site_id: siteID, status: status || undefined },
  })
  return extract(resp).items ?? []
}

export async function updateAccountDisplay(id: number, displayStatus: string): Promise<AccountDisplay> {
  const resp = await api.put<ApiResponse<AccountDisplay>>(`/admin/distribution/accounts/${id}/display`, {
    display_status: displayStatus,
  })
  return extract(resp)
}

export async function syncSiteAccounts(siteID: number, req?: SyncSiteAccountsRequest): Promise<SyncSiteAccountsResult> {
  const resp = await api.post<ApiResponse<SyncSiteAccountsResult>>(`/admin/distribution/sites/${siteID}/sync-accounts`, req ?? {})
  return extract(resp)
}

export async function listPaymentChannels(siteID: number): Promise<PaymentChannel[]> {
  const resp = await api.get<ApiResponse<{ items: PaymentChannel[] }>>('/admin/distribution/payment-channels', {
    params: { site_id: siteID },
  })
  return extract(resp).items ?? []
}

export async function bindPaymentChannel(siteID: number, configID: number, priority: number): Promise<PaymentChannel> {
  const resp = await api.post<ApiResponse<PaymentChannel>>(
    '/admin/distribution/payment-channels',
    { config_id: configID, priority },
    { params: { site_id: siteID } },
  )
  return extract(resp)
}

export async function unbindPaymentChannel(id: number): Promise<void> {
  await api.delete(`/admin/distribution/payment-channels/${id}`)
}

export async function listSettlementBatches(siteID: number): Promise<SettlementBatch[]> {
  const resp = await api.get<ApiResponse<{ items: SettlementBatch[] }>>('/admin/distribution/settlement-batches', {
    params: { site_id: siteID },
  })
  return extract(resp).items ?? []
}

export async function createSettlementBatch(siteID: number, periodStart: string, periodEnd: string): Promise<SettlementBatch> {
  const resp = await api.post<ApiResponse<SettlementBatch>>('/admin/distribution/settlement-batches', {
    site_id: siteID,
    period_start: periodStart,
    period_end: periodEnd,
  })
  return extract(resp)
}

export async function settleBatch(id: number): Promise<SettlementBatch> {
  const resp = await api.post<ApiResponse<SettlementBatch>>(`/admin/distribution/settlement-batches/${id}/settle`)
  return extract(resp)
}

export async function cancelSettlementBatch(id: number): Promise<SettlementBatch> {
  const resp = await api.post<ApiResponse<SettlementBatch>>(`/admin/distribution/settlement-batches/${id}/cancel`)
  return extract(resp)
}

export async function listSettlementItems(batchID: number): Promise<SettlementItem[]> {
  const resp = await api.get<ApiResponse<{ items: SettlementItem[] }>>(`/admin/distribution/settlement-batches/${batchID}/items`)
  return extract(resp).items ?? []
}

export interface ReceivedListing {
  listing_id: number
  listing_no: string
  site_id: number
  account_id: number
  owner_id: number
  owner_phone?: string
  owner_nickname?: string
  title: string
  game_name: string
  server_region: string
  login_platform: string
  rank_level: string
  haf_coin_amount: number
  seller_ratio?: number
  seller_total_price_cent?: number
  buyer_ratio?: number
  price_cent: number
  deposit_amount_cent: number
  status: string
  review_status: string
  review_reason: string
  published_at?: string
  created_at: string
}

export interface ReceivedListingPage {
  items: ReceivedListing[]
  total: number
  page: number
  page_size: number
}

export async function fetchReceivedListings(params: {
  siteID?: number
  page?: number
  pageSize?: number
  status?: string
  reviewStatus?: string
  gameName?: string
  keyword?: string
}): Promise<ReceivedListingPage> {
  const resp = await api.get<ApiResponse<ReceivedListingPage>>('/admin/distribution/received-listings', {
    params: {
      site_id: params.siteID,
      page: params.page || 1,
      page_size: params.pageSize || 20,
      status: params.status || undefined,
      review_status: params.reviewStatus || undefined,
      game_name: params.gameName || undefined,
      keyword: params.keyword || undefined,
    },
  })
  return extract(resp)
}

export async function updateReceivedListingStatus(id: number, status: string): Promise<void> {
  await api.put(`/admin/distribution/received-listings/${id}/status`, { status })
}

export interface SiteWallet {
  site_id: number
  available_balance_cent: number
  frozen_balance_cent: number
  pending_release_cent: number
  total_settled_cent: number
  total_withdrawn_cent: number
  settlement_hold_days?: number
}

export async function fetchSiteWallet(siteID: number): Promise<SiteWallet> {
  const resp = await api.get<ApiResponse<SiteWallet>>(`/admin/distribution/sites/${siteID}/wallet`)
  return extract(resp)
}

export interface SiteWithdrawal {
  id: number
  withdraw_no: string
  site_id: number
  amount_cent: number
  fee_cent: number
  actual_amount_cent: number
  account_type: string
  account_name: string
  account_no: string
  bank_name?: string
  bank_branch?: string
  status: string
  review_remark?: string
  payment_proof_url?: string
  payment_remark?: string
  paid_at?: string
  created_at: string
}

export interface SiteWithdrawalPage {
  items: SiteWithdrawal[]
  total: number
  page: number
  page_size: number
}

export async function fetchSiteWithdrawals(siteID: number, page = 1, pageSize = 20): Promise<SiteWithdrawalPage> {
  const resp = await api.get<ApiResponse<SiteWithdrawalPage>>(`/admin/distribution/sites/${siteID}/withdrawals`, {
    params: { page, page_size: pageSize },
  })
  return extract(resp)
}

export interface ApplySiteWithdrawalPayload {
  site_id?: number
  amount_cent: number
  account_type: 'alipay' | 'bank'
  account_name: string
  account_no: string
  bank_name?: string
  bank_branch?: string
}

export async function applySiteWithdrawal(payload: ApplySiteWithdrawalPayload): Promise<SiteWithdrawal> {
  const resp = await api.post<ApiResponse<SiteWithdrawal>>(`/admin/distribution/sites/${payload.site_id}/withdrawals`, payload)
  return extract(resp)
}

export interface SiteBrandingPayload {
  logo_url?: string
  favicon_url?: string
  banners_json?: string
  announcements_json?: string
  footer_info_json?: string
  aw_recycle_json?: string
  cooperation_feedback_json?: string
  storefront_text_json?: string
  listing_qrcode_url?: string
}

export async function uploadSiteImage(file: File, scene: string): Promise<string> {
  const form = new FormData()
  form.append('file', file)
  form.append('scene', scene)
  const resp = await api.post<ApiResponse<{ url: string }>>('/admin/files/upload', form, {
    headers: { 'Content-Type': 'multipart/form-data' },
  })
  return extract(resp).url
}

export async function updateSiteBranding(siteID: number, payload: SiteBrandingPayload): Promise<Site> {
  const resp = await api.put<ApiResponse<Site>>(`/admin/distribution/sites/${siteID}/branding`, payload)
  return extract(resp)
}

export async function updateAccountMarkup(id: number, shelfRatioDelta: number): Promise<AccountDisplay> {
  const resp = await api.put<ApiResponse<AccountDisplay>>(`/admin/distribution/accounts/${id}/markup`, {
    shelf_ratio_delta: shelfRatioDelta,
  })
  return extract(resp)
}

export interface BatchUpdateAccountMarkupItem {
  id?: number
  listing_id?: number
  shelf_ratio_delta: number
}

export interface BatchUpdateAccountMarkupRequest {
  listing_ids?: number[]
  display_ids?: number[]
  shelf_ratio_delta?: number
  items?: BatchUpdateAccountMarkupItem[]
}

export async function batchUpdateAccountMarkup(
  siteID: number,
  reqOrListingIDs: BatchUpdateAccountMarkupRequest | number[],
  shelfRatioDelta?: number,
): Promise<void> {
  const payload: BatchUpdateAccountMarkupRequest = Array.isArray(reqOrListingIDs)
    ? { listing_ids: reqOrListingIDs, shelf_ratio_delta: shelfRatioDelta ?? 0 }
    : reqOrListingIDs

  await api.post(`/admin/distribution/accounts/batch-markup`, payload, {
    params: { site_id: siteID },
  })
}

export async function batchUpdateAccountDisplay(
  siteID: number,
  displayIDs: number[],
  targetStatus: 'enabled' | 'disabled',
): Promise<void> {
  await api.post(
    `/admin/distribution/accounts/batch-display`,
    {
      display_ids: displayIDs,
      target_status: targetStatus,
    },
    {
      params: { site_id: siteID },
    },
  )
}

export interface DistributionAnalytics {
  today_received_count: number
  total_received_count: number
  active_listing_count: number
  today_order_count: number
  today_gmv_cent: number
  today_profit_cent: number
  month_profit_cent: number
  available_balance_cent: number
  trend_days: {
    date: string
    received_count: number
    order_count: number
    gmv_cent: number
    profit_cent: number
  }[]
}

export async function fetchDashboardAnalytics(siteID: number): Promise<DistributionAnalytics> {
  const resp = await api.get<ApiResponse<DistributionAnalytics>>(`/admin/distribution/sites/${siteID}/analytics`)
  return extract(resp)
}

export interface SiteSMSConfig {
  enabled: boolean
  provider: string
  access_key_id: string
  masked_secret: string
  has_secret: boolean
  endpoint: string
  sign_name: string
  login_template_code: string
}

export interface UpdateSiteSMSConfigPayload {
  enabled?: boolean
  provider?: string
  access_key_id?: string
  access_key_secret?: string
  endpoint?: string
  sign_name?: string
  login_template_code?: string
}

export interface TestSiteSMSConfigPayload {
  phone: string
  enabled?: boolean
  provider?: string
  access_key_id?: string
  access_key_secret?: string
  endpoint?: string
  sign_name?: string
  login_template_code?: string
}

export async function fetchSiteSMSConfig(siteID: number): Promise<SiteSMSConfig> {
  const resp = await api.get<ApiResponse<SiteSMSConfig>>(`/admin/distribution/sites/${siteID}/sms-config`)
  return extract(resp)
}

export async function updateSiteSMSConfig(siteID: number, payload: UpdateSiteSMSConfigPayload): Promise<SiteSMSConfig> {
  const resp = await api.put<ApiResponse<SiteSMSConfig>>(`/admin/distribution/sites/${siteID}/sms-config`, payload)
  return extract(resp)
}

export async function testSiteSMSConfig(siteID: number, payload: TestSiteSMSConfigPayload): Promise<{ message: string }> {
  const resp = await api.post<ApiResponse<{ message: string }>>(`/admin/distribution/sites/${siteID}/sms-config/test`, payload)
  return extract(resp)
}