import { usePaymentStore } from '#lib/stores/payment'
import { useCancelPromotion, usePromotion } from '#lib/composables/promotion'
import type { TPayInvoiceDataResponse, GetTPayRequest } from '#lib/types'
import { valueToNumber } from '#lib/utils'
import { computed, ref } from 'vue'
import { useNadal } from '#lib/composables'
import { useApiFetch } from '../service/use-api-fetch'
import { DEPOSIT_WITHDRAW_API } from '#lib/configs/api'

/**
 * Provides methods and state related to TPay, including fetching data and handling TPay transactions.
 * @returns {Object} An object containing state and methods for managing TPay functionality.
 * @namespace
 */
export function useTPay() {
  const { request } = useApiFetch()
  const store = usePaymentStore()
  const { payment } = useNadal()
  const { isUsingPromotion, promotionPackages, fetchPromotionPackages } =
    usePromotion()
  const { openModalCancelPromotion } = useCancelPromotion()

  const tpayInvoiceData = ref({})

  /**
   * Computes and returns the TPay code from the store.
   * @type {ComputedRef<string | undefined>}
   */
  const tpayCode = computed(() => {
    return store.tpayCode
  })

  /**
   * Resets the invoice data after expiration
   */
  const resetInvoiceData = () => {
    return tpayInvoiceData.value = {}
  }

  /**
   * Retrieves transfer information for a TPay transaction.
   * @async
   * @param {GetTPayRequest} payload - The request payload for retrieving TPay transfer information.
   * @returns {Promise<TPayInvoiceDataResponse | undefined>} A promise that resolves to the transfer information and QR code.
   */
  const fetchTPayTransferInfo = async (
    payload: GetTPayRequest,
  ): Promise<TPayInvoiceDataResponse | undefined> => {
    if (isUsingPromotion.value) {
      openModalCancelPromotion()
      return
    }
    const amount = valueToNumber(payload.amount.toString(), 1000)
    const data = await payment.tpayInvoice<
      GetTPayRequest,
      TPayInvoiceDataResponse
    >({
      ...payload,
      amount,
    })
    store.setTpayCode(data.qr_code ?? '')
    tpayInvoiceData.value = data
    return data
  }

  /**
   * Checks if TPay is under maintenance
   * @async
   * @returns {Promise<void>} A promise that resolves when the maintenance status has been checked.
   */
  const checkTpayMaintenance = async () => {
    const { data } = await request<void, { is_maintain: boolean }>(
      DEPOSIT_WITHDRAW_API.CHECK_TPAY_MAINTENANCE,
    )
    store.setMaintainedTpayDeposit(data.is_maintain)
  }

  const isMaintainedTpay = computed(() => {
    return store.isMaintainedTpayDeposit
  })

  return {
    tpayInvoiceData,
    fetchTPayTransferInfo,
    promotionPackages,
    tpayCode,
    fetchPromotionPackages,
    resetInvoiceData,
    checkTpayMaintenance,
    isMaintainedTpay,
  }
}