import { apiRequest } from '@/api/http'

export interface PageResult<T> {
  records: T[]
  total: number
  page: number
  size: number
  pages: number
}

export interface FinanceAccount {
  currencyCode: 'CNY'
  actualBalance: string
  frozenBalance: string
  availableBalance: string
  version: number
  updatedAt: string
}

export type AccountChangeType = 'RECHARGE' | 'DEDUCTION' | 'FREEZE' | 'UNFREEZE' | 'CONSUMPTION'

export interface AccountLedgerEntry {
  ledgerId: string
  businessNo: string
  changeType: AccountChangeType
  amount: string
  actualBalanceAfter: string
  frozenBalanceAfter: string
  availableBalanceAfter: string
  sourceType: 'CLIENT_RECHARGE' | 'MANUAL_RECHARGE' | 'MANUAL_DEDUCTION'
  sourceNo: string
  operatorName: string | null
  remark: string | null
  createdAt: string
}

export type RechargePaymentMethod = 'WECHAT' | 'ALIPAY'
export type RechargeStatus = 'PENDING' | 'APPROVED' | 'REJECTED'

export interface RechargeRequest {
  requestId: string
  requestNo: string
  amount: string
  paymentMethod: RechargePaymentMethod
  voucherFileId: string
  voucherFileName: string
  status: RechargeStatus
  version: number
  submittedByName: string | null
  reviewedByName: string | null
  reviewRemark: string | null
  createdAt: string
  reviewedAt: string | null
}

export interface RechargeChannel {
  paymentMethod: RechargePaymentMethod
  displayName: string
  enabled: boolean
  qrCodeUrl: string | null
}

export function getFinanceAccount() {
  return apiRequest<FinanceAccount>({ method: 'GET', url: '/client/finance/v1/account' })
}

export function getAccountLedger(page: number, size: number) {
  return apiRequest<PageResult<AccountLedgerEntry>>({
    method: 'GET',
    url: '/client/finance/v1/account/ledger',
    params: { page, size },
  })
}

export function getRechargeRequests(page: number, size: number) {
  return apiRequest<PageResult<RechargeRequest>>({
    method: 'GET',
    url: '/client/finance/v1/recharge-requests',
    params: { page, size },
  })
}

export function getRechargeChannels() {
  return apiRequest<RechargeChannel[]>({ method: 'GET', url: '/client/finance/v1/recharge-channels' })
}

export function createRechargeRequest(amount: string, paymentMethod: RechargePaymentMethod, file: File,
                                      idempotencyKey: string) {
  const formData = new FormData()
  formData.append('amount', amount)
  formData.append('paymentMethod', paymentMethod)
  formData.append('file', file, file.name)
  return apiRequest<RechargeRequest>({
    method: 'POST',
    url: '/client/finance/v1/recharge-requests',
    headers: { 'Idempotency-Key': idempotencyKey },
    data: formData,
  })
}