import Spinner from '@/core/components/elements/Spinner/Spinner'
import useTransaction from '../hooks/useTransaction'
import TransactionStatusBadge from './TransactionStatusBadge'
import Divider from '@/core/components/elements/Divider/Divider'
import { useEffect, useMemo, useRef, useState } from 'react'
import { downloadPurchaseOrder, downloadQuotation } from '../utils/transactions'
import BottomPopup from '@/core/components/elements/Popup/BottomPopup'
import uploadPoApi from '../api/uploadPoApi'
import { toast } from 'react-hot-toast'
import getFileBase64 from '@/core/utils/getFileBase64'
import currencyFormat from '@/core/utils/currencyFormat'
import VariantGroupCard from '@/lib/variant/components/VariantGroupCard'
import { ChevronDownIcon, ChevronRightIcon, ChevronUpIcon } from '@heroicons/react/24/outline'
import Link from '@/core/components/elements/Link/Link'
import Alert from '@/core/components/elements/Alert/Alert'
import checkoutPoApi from '../api/checkoutPoApi'
import cancelTransactionApi from '../api/cancelTransactionApi'

const Transaction = ({ id }) => {
  const { transaction } = useTransaction({ id })

  const [totalAmount, setTotalAmount] = useState(0)
  const [totalDiscountAmount, setTotalDiscountAmount] = useState(0)

  useEffect(() => {
    if (transaction?.data?.products) {
      let calculateTotalAmount = 0
      let calculateTotalDiscountAmount = 0
      transaction.data.products.forEach((product) => {
        calculateTotalAmount += product.price.price * product.quantity
        calculateTotalDiscountAmount +=
          (product.price.price - product.price.priceDiscount) * product.quantity
      })
      setTotalAmount(calculateTotalAmount)
      setTotalDiscountAmount(calculateTotalDiscountAmount)
    }
  }, [transaction])

  const poNumber = useRef('')
  const poFile = useRef('')
  const [uploadPo, setUploadPo] = useState(false)
  const openUploadPo = () => setUploadPo(true)
  const closeUploadPo = () => setUploadPo(false)
  const submitUploadPo = async () => {
    const file = poFile.current.files[0]
    const name = poNumber.current.value
    if (typeof file === 'undefined' || !name) {
      toast.error('Nomor dan Dokumen PO harus diisi', { position: 'bottom-center' })
      return
    }
    if (file.size > 5000000) {
      toast.error('Maksimal ukuran file adalah 5MB', { position: 'bottom-center' })
      return
    }
    const data = { name, file: await getFileBase64(file) }
    const isUploaded = await uploadPoApi({ id, data })
    if (isUploaded) {
      toast.success('Berhasil upload PO')
      transaction.refetch()
      closeUploadPo()
      return
    }
    toast.error('Terjadi kesalahan internal, coba lagi nanti atau hubungi kami')
  }

  const [cancelTransaction, setCancelTransaction] = useState(false)
  const openCancelTransaction = () => setCancelTransaction(true)
  const closeCancelTransaction = () => setCancelTransaction(false)
  const submitCancelTransaction = async () => {
    const isCancelled = await cancelTransactionApi({ transaction: transaction.data })
    if (isCancelled) {
      toast.success('Berhasil batalkan transaksi')
      transaction.refetch()
    }
    closeCancelTransaction()
  }

  const checkout = async () => {
    if (!transaction.data?.purchaseOrderFile) {
      toast.error('Mohon upload dokumen PO anda sebelum melanjutkan pesanan')
      return
    }
    await checkoutPoApi({ id })
    toast.success('Berhasil melanjutkan pesanan')
    transaction.refetch()
  }

  const memoizeVariantGroupCard = useMemo(
    () => (
      <div className='p-4 pt-0 flex flex-col gap-y-3'>
        <VariantGroupCard
          variants={transaction.data?.products}
          buyMore
        />
        <div className='flex justify-between mt-1'>
          <p className='text-gray_r-12/70'>Subtotal</p>
          <p>{currencyFormat(totalAmount)}</p>
        </div>
        <div className='flex justify-between mt-1'>
          <p className='text-gray_r-12/70'>Total Diskon</p>
          <p>{currencyFormat(-totalDiscountAmount)}</p>
        </div>
        <div className='flex justify-between mt-1'>
          <p className='text-gray_r-12/70'>PPN 11% (Incl.)</p>
          <p>{currencyFormat(totalAmount * 0.11)}</p>
        </div>
        <div className='flex justify-between mt-1 font-medium'>
          <p>Total Belanja</p>
          <p>{currencyFormat(transaction.data?.amountTotal)}</p>
        </div>
      </div>
    ),
    [transaction.data, totalAmount, totalDiscountAmount]
  )

  if (transaction.isLoading) {
    return (
      <div className='flex justify-center my-6'>
        <Spinner className='w-6 text-gray_r-12/50 fill-gray_r-12' />
      </div>
    )
  }

  return (
    transaction.data?.name && (
      <>
        <div className='flex flex-col gap-y-4 p-4'>
          <DescriptionRow label='Status Transaksi'>
            <div className='flex justify-end'>
              <TransactionStatusBadge status={transaction.data?.status} />
            </div>
          </DescriptionRow>
          <DescriptionRow label='No Transaksi'>{transaction.data?.name}</DescriptionRow>
          <DescriptionRow label='Ketentuan Pembayaran'>
            {transaction.data?.paymentTerm}
          </DescriptionRow>
          <DescriptionRow label='Nama Sales'>{transaction.data?.sales}</DescriptionRow>
          <DescriptionRow label='Waktu Transaksi'>{transaction.data?.dateOrder}</DescriptionRow>
        </div>

        <Divider />

        <div className='p-4 flex flex-col gap-y-4'>
          <DescriptionRow label='Purchase Order'>
            {transaction.data?.purchaseOrderName || '-'}
          </DescriptionRow>
          <div className='flex items-center'>
            <p className='text-gray_r-11 leading-none'>Dokumen PO</p>
            <button
              type='button'
              className='btn-light py-1.5 px-3 ml-auto'
              onClick={
                transaction.data?.purchaseOrderFile
                  ? () => downloadPurchaseOrder(transaction.data)
                  : openUploadPo
              }
            >
              {transaction.data?.purchaseOrderFile ? 'Download' : 'Upload'}
            </button>
          </div>
        </div>

        <Divider />

        <div className='font-medium p-4'>Detail Produk</div>

        {memoizeVariantGroupCard}

        <Divider />

        <SectionAddress address={transaction.data?.address} />

        <Divider />

        <div className='p-4'>
          <p className='font-medium'>Invoice</p>
          <div className='flex flex-col gap-y-3 mt-4'>
            {transaction.data?.invoices?.map((invoice, index) => (
              <Link
                href={`/my/invoice/${invoice.id}`}
                key={index}
              >
                <div className='shadow rounded-md p-4 text-gray_r-12 font-normal flex justify-between'>
                  <div>
                    <p className='mb-2'>{invoice?.name}</p>
                    <div className='flex items-center gap-x-1'>
                      {invoice.amountResidual > 0 ? (
                        <div className='badge-red'>Belum Lunas</div>
                      ) : (
                        <div className='badge-green'>Lunas</div>
                      )}
                      <p className='text-caption-2 text-gray_r-11'>
                        {currencyFormat(invoice.amountTotal)}
                      </p>
                    </div>
                  </div>
                  <ChevronRightIcon className='w-5 stroke-2' />
                </div>
              </Link>
            ))}
            {transaction.data?.invoices?.length === 0 && (
              <Alert
                type='info'
                className='text-center'
              >
                Belum ada Invoice
              </Alert>
            )}
          </div>
        </div>

        <Divider />

        <div className='p-4 pt-0'>
          {transaction.data?.status == 'draft' && (
            <button
              className='btn-yellow w-full mt-4'
              onClick={checkout}
            >
              Lanjutkan Transaksi
            </button>
          )}
          <button
            className='btn-light w-full mt-4'
            disabled={transaction.data?.status != 'draft'}
            onClick={downloadQuotation}
          >
            Download Quotation
          </button>
          {transaction.data?.status != 'draft' && (
            <button
              className='btn-light w-full mt-4'
              disabled={transaction.data?.status != 'waiting'}
              onClick={openCancelTransaction}
            >
              Batalkan Transaksi
            </button>
          )}
        </div>

        <BottomPopup
          active={cancelTransaction}
          close={closeCancelTransaction}
          title='Batalkan Transaksi'
        >
          <div className='leading-7 text-gray_r-12/80'>
            Apakah anda yakin membatalkan transaksi{' '}
            <span className='underline'>{transaction.data?.name}</span>?
          </div>
          <div className='flex mt-6 gap-x-4'>
            <button
              className='btn-solid-red flex-1'
              type='button'
              onClick={submitCancelTransaction}
            >
              Ya, Batalkan
            </button>
            <button
              className='btn-light flex-1'
              type='button'
              onClick={closeCancelTransaction}
            >
              Batal
            </button>
          </div>
        </BottomPopup>

        <BottomPopup
          title='Upload PO'
          close={closeUploadPo}
          active={uploadPo}
        >
          <div>
            <label>Nomor PO</label>
            <input
              type='text'
              className='form-input mt-3'
              ref={poNumber}
            />
          </div>
          <div className='mt-4'>
            <label>Dokumen PO</label>
            <input
              type='file'
              className='form-input mt-3 py-2'
              ref={poFile}
            />
          </div>
          <div className='grid grid-cols-2 gap-x-3 mt-6'>
            <button
              type='button'
              className='btn-light w-full'
              onClick={closeUploadPo}
            >
              Batal
            </button>
            <button
              type='button'
              className='btn-solid-red w-full'
              onClick={submitUploadPo}
            >
              Upload
            </button>
          </div>
        </BottomPopup>
      </>
    )
  )
}

const SectionAddress = ({ address }) => {
  const [section, setSection] = useState({
    customer: false,
    invoice: false,
    shipping: false
  })
  const toggleSection = (name) => {
    setSection({ ...section, [name]: !section[name] })
  }

  return (
    <>
      <SectionButton
        label='Detail Pelanggan'
        active={section.customer}
        toggle={() => toggleSection('customer')}
      />

      {section.customer && <SectionContent address={address?.customer} />}

      <Divider />

      <SectionButton
        label='Detail Pengiriman'
        active={section.shipping}
        toggle={() => toggleSection('shipping')}
      />

      {section.shipping && <SectionContent address={address?.shipping} />}

      <Divider />

      <SectionButton
        label='Detail Penagihan'
        active={section.invoice}
        toggle={() => toggleSection('invoice')}
      />
      {section.invoice && <SectionContent address={address?.invoice} />}
    </>
  )
}

const SectionButton = ({ label, active, toggle }) => (
  <button
    className='p-4 font-medium flex justify-between w-full'
    onClick={toggle}
  >
    <span>{label}</span>
    {active ? <ChevronUpIcon className='w-5' /> : <ChevronDownIcon className='w-5' />}
  </button>
)

const SectionContent = ({ address }) => {
  let fullAddress = []
  if (address?.street) fullAddress.push(address.street)
  if (address?.subDistrict?.name) fullAddress.push(address.subDistrict.name)
  if (address?.district?.name) fullAddress.push(address.district.name)
  if (address?.city?.name) fullAddress.push(address.city.name)
  fullAddress = fullAddress.join(', ')

  return (
    <div className='flex flex-col gap-y-4 p-4 border-t border-gray_r-6'>
      <DescriptionRow label='Nama'>{address.name}</DescriptionRow>
      <DescriptionRow label='Email'>{address.email || '-'}</DescriptionRow>
      <DescriptionRow label='No Telepon'>{address.mobile || '-'}</DescriptionRow>
      <DescriptionRow label='Alamat'>{fullAddress}</DescriptionRow>
    </div>
  )
}

const DescriptionRow = ({ children, label }) => (
  <div className='grid grid-cols-2'>
    <span className='text-gray_r-11'>{label}</span>
    <span className='text-right'>{children}</span>
  </div>
)

export default Transaction