import { Inject, Injectable, Logger } from '@nestjs/common'

import { PrismaService } from '../Prisma/prisma.service'
import PayOS from '@payos/node'
import type { CheckoutRequestType, CheckoutResponseDataType, WebhookType, WebhookDataType, CancelPaymentLinkRequestType, DataType } from '@payos/node/lib/type'
import { ChatRoomType, OrderStatus, PaymentStatus, ScheduleStatus } from '@prisma/client'
export type CreatePaymentBody = CheckoutRequestType
export type CreatePaymentResponse = CheckoutResponseDataType
@Injectable()
export class PayosService {
  constructor(
    private readonly prisma: PrismaService,
    @Inject('PayOS') private readonly payos: PayOS,
  ) {}

  async ping() {
    return 'pong'
  }

  async webhook(data: WebhookType) {
    Logger.log(`Webhook received: ${JSON.stringify(data)}`)

    /* -------------------------------------------------------------------------- */
    /*                                Test payment                                */
    /* -------------------------------------------------------------------------- */
    if (data.data.orderCode === 123) {
      return {
        message: 'Payment received',
      }
    }
    const paymentData = this.payos.verifyPaymentWebhookData(data)
    if (!paymentData) {
      Logger.error(`Invalid checksum: ${JSON.stringify(data)}`)
      throw new Error('Invalid checksum')
    }
    const paymentStatus = paymentData.code === '00' ? PaymentStatus.PAID : PaymentStatus.CANCELLED
    /* ---------------------------- begin transaction --------------------------- */
    try {
      await this.prisma.$transaction(async (tx) => {
        // update payment status
        const payment = await tx.payment.update({
          where: { paymentCode: paymentData.paymentLinkId },
          data: {
            status: paymentStatus,
          },
        })
        const orderStatus = paymentStatus === PaymentStatus.PAID ? OrderStatus.PAID : OrderStatus.FAILED
        // update order status
        await tx.order.update({
          where: { id: payment.orderId },
          data: {
            status: orderStatus,
          },
        })
        const order = await tx.order.findUniqueOrThrow({
          where: { id: payment.orderId },
        })
        const schedule = await tx.schedule.findUnique({
          where: { id: order?.scheduleId },
        })
        // update schedule order id
        await tx.schedule.update({
          where: { id: schedule?.id },
          data: {
            customerId: order?.userId,
            orderId: order?.id,
            status: ScheduleStatus.IN_PROGRESS,
          },
        })
        // get mentor id from managed service
        const managedService = await tx.managedService.findUniqueOrThrow({
          where: { id: schedule?.managedServiceId },
        })
        const mentorId = managedService.mentorId
        // get center id from order service
        const orderService = await tx.service.findUniqueOrThrow({
          where: { id: order?.serviceId },
        })
        const centerId = orderService.centerId
        // create chatroom for support
        await tx.chatRoom.create({
          data: {
            type: ChatRoomType.SUPPORT,
            customerId: order.userId,
            centerId: centerId,
            mentorId: mentorId,
          },
        })
        // update orderId for schedule dates
        await tx.scheduleDate.updateMany({
          where: { scheduleId: schedule?.id },
          data: {
            orderId: order.id,
          },
        })
        return {
          message: 'Payment received',
        }
      })
    } catch (error) {
      Logger.error(`Transaction failed: ${error}`)
      throw error
    }
  }

  async createPaymentURL(body: CheckoutRequestType) {
    return await this.payos.createPaymentLink(body)
  }

  async createPayment(body: CreatePaymentBody): Promise<CreatePaymentResponse> {
    return await this.payos.createPaymentLink(body)
  }

  async getPaymentStatus(orderId: string | number) {
    return await this.payos.getPaymentLinkInformation(orderId)
  }

  async cancelPaymentURL(orderId: string | number, cancellationReason?: string) {
    return await this.payos.cancelPaymentLink(orderId, cancellationReason)
  }

  // biome-ignore lint/suspicious/noExplicitAny: <explanation>
  async refundPayment(body: any) {
    return body
  }
}