import React, {
  Dispatch,
  SetStateAction,
  useCallback,
  useEffect,
  useMemo,
  useRef,
  useState,
} from 'react'
import {
  TransactionInstruction,
  PublicKey,
  VersionedTransaction,
  Connection,
  TransactionMessage,
  AddressLookupTableAccount,
} from '@solana/web3.js'
import Decimal from 'decimal.js'

import mangoStore from '@store/mangoStore'
import Button, { IconButton } from '../shared/Button'
import Loading from '../shared/Loading'
import {
  ArrowLeftIcon,
  PencilIcon,
  ArrowsRightLeftIcon,
  ArrowRightIcon,
  ChevronDownIcon,
} from '@heroicons/react/20/solid'
import { useTranslation } from 'next-i18next'
import Image from 'next/legacy/image'
import { formatNumericValue } from '../../utils/numbers'
import { notify } from '../../utils/notifications'
import useJupiterMints from '../../hooks/useJupiterMints'
import { RouteInfo } from 'types/jupiter'
import useJupiterSwapData from './useJupiterSwapData'
// import { Transaction } from '@solana/web3.js'
import { SOUND_SETTINGS_KEY } from 'utils/constants'
import useLocalStorageState from 'hooks/useLocalStorageState'
import { Howl } from 'howler'
import { INITIAL_SOUND_SETTINGS } from '@components/settings/SoundSettings'
import Tooltip from '@components/shared/Tooltip'
import { Disclosure } from '@headlessui/react'
import RoutesModal from './RoutesModal'
import { createAssociatedTokenAccountIdempotentInstruction } from '@blockworks-foundation/mango-v4'
import FormatNumericValue from '@components/shared/FormatNumericValue'
import { isMangoError } from 'types'

type JupiterRouteInfoProps = {
  amountIn: Decimal
  onClose: () => void
  routes: RouteInfo[] | undefined
  selectedRoute: RouteInfo | undefined | null
  setSelectedRoute: Dispatch<SetStateAction<RouteInfo | undefined | null>>
  slippage: number
}

const deserializeJupiterIxAndAlt = async (
  connection: Connection,
  swapTransaction: string
): Promise<[TransactionInstruction[], AddressLookupTableAccount[]]> => {
  const parsedSwapTransaction = VersionedTransaction.deserialize(
    Buffer.from(swapTransaction, 'base64')
  )
  const message = parsedSwapTransaction.message
  // const lookups = message.addressTableLookups
  const addressLookupTablesResponses = await Promise.all(
    message.addressTableLookups.map((alt) =>
      connection.getAddressLookupTable(alt.accountKey)
    )
  )
  const addressLookupTables: AddressLookupTableAccount[] =
    addressLookupTablesResponses
      .map((alt) => alt.value)
      .filter((x): x is AddressLookupTableAccount => x !== null)

  const decompiledMessage = TransactionMessage.decompile(message, {
    addressLookupTableAccounts: addressLookupTables,
  })

  return [decompiledMessage.instructions, addressLookupTables]
}

const prepareMangoRouterInstructions = async (
  selectedRoute: RouteInfo,
  inputMint: PublicKey,
  outputMint: PublicKey,
  userPublicKey: PublicKey
): Promise<[TransactionInstruction[], AddressLookupTableAccount[]]> => {
  if (!selectedRoute || !selectedRoute.mints || !selectedRoute.instructions) {
    return [[], []]
  }
  const mintsToFilterOut = [inputMint, outputMint]
  const filteredOutMints = [
    ...selectedRoute.mints.filter(
      (routeMint) =>
        !mintsToFilterOut.find((filterOutMint) =>
          filterOutMint.equals(routeMint)
        )
    ),
  ]
  const additionalInstructions = []
  for (const mint of filteredOutMints) {
    const ix = await createAssociatedTokenAccountIdempotentInstruction(
      userPublicKey,
      userPublicKey,
      mint
    )
    additionalInstructions.push(ix)
  }
  const instructions = [
    ...additionalInstructions,
    ...selectedRoute.instructions,
  ]
  return [instructions, []]
}

const fetchJupiterTransaction = async (
  connection: Connection,
  selectedRoute: RouteInfo,
  userPublicKey: PublicKey,
  slippage: number,
  inputMint: PublicKey,
  outputMint: PublicKey
): Promise<[TransactionInstruction[], AddressLookupTableAccount[]]> => {
  const transactions = await (
    await fetch('https://quote-api.jup.ag/v4/swap', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        // route from /quote api
        route: selectedRoute,
        // user public key to be used for the swap
        userPublicKey,
        // feeAccount is optional. Use if you want to charge a fee.  feeBps must have been passed in /quote API.
        // This is the ATA account for the output token where the fee will be sent to. If you are swapping from SOL->USDC then this would be the USDC ATA you want to collect the fee.
        // feeAccount: 'fee_account_public_key',
        slippageBps: Math.ceil(slippage * 100),
      }),
    })
  ).json()

  const { swapTransaction } = transactions

  const [ixs, alts] = await deserializeJupiterIxAndAlt(
    connection,
    swapTransaction
  )

  const isSetupIx = (pk: PublicKey): boolean =>
    pk.toString() === 'ComputeBudget111111111111111111111111111111' ||
    pk.toString() === 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA'

  const isDuplicateAta = (ix: TransactionInstruction): boolean => {
    return (
      ix.programId.toString() ===
        'ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL' &&
      (ix.keys[3].pubkey.toString() === inputMint.toString() ||
        ix.keys[3].pubkey.toString() === outputMint.toString())
    )
  }

  const filtered_jup_ixs = ixs
    .filter((ix) => !isSetupIx(ix.programId))
    .filter((ix) => !isDuplicateAta(ix))

  return [filtered_jup_ixs, alts]
}

const EMPTY_COINGECKO_PRICES = {
  inputCoingeckoPrice: 0,
  outputCoingeckoPrice: 0,
}

const successSound = new Howl({
  src: ['/sounds/swap-success.mp3'],
  volume: 0.5,
})

const SwapReviewRouteInfo = ({
  amountIn,
  onClose,
  routes,
  selectedRoute,
  setSelectedRoute,
}: JupiterRouteInfoProps) => {
  const { t } = useTranslation(['common', 'trade'])
  const slippage = mangoStore((s) => s.swap.slippage)
  const [showRoutesModal, setShowRoutesModal] = useState<boolean>(false)
  const [swapRate, setSwapRate] = useState<boolean>(false)
  const [feeValue] = useState<number | null>(null)
  const [submitting, setSubmitting] = useState(false)
  const [coingeckoPrices, setCoingeckoPrices] = useState(EMPTY_COINGECKO_PRICES)
  const { jupiterTokens } = useJupiterMints()
  const { inputTokenInfo, outputTokenInfo } = useJupiterSwapData()
  const inputBank = mangoStore((s) => s.swap.inputBank)
  const [soundSettings] = useLocalStorageState(
    SOUND_SETTINGS_KEY,
    INITIAL_SOUND_SETTINGS
  )
  const focusRef = useRef<HTMLButtonElement>(null)

  const inputTokenIconUri = useMemo(() => {
    return inputTokenInfo ? inputTokenInfo.logoURI : ''
  }, [inputTokenInfo])

  const amountOut = useMemo(() => {
    if (!selectedRoute || !outputTokenInfo) return
    return new Decimal(selectedRoute.outAmount.toString()).div(
      10 ** outputTokenInfo.decimals
    )
  }, [selectedRoute, outputTokenInfo])

  useEffect(() => {
    if (focusRef?.current) {
      focusRef.current.focus()
    }
  }, [focusRef])

  useEffect(() => {
    setCoingeckoPrices(EMPTY_COINGECKO_PRICES)
    const fetchTokenPrices = async () => {
      const inputId = inputTokenInfo?.extensions?.coingeckoId
      const outputId = outputTokenInfo?.extensions?.coingeckoId

      if (inputId && outputId) {
        try {
          const results = await fetch(
            `https://api.coingecko.com/api/v3/simple/price?ids=${inputId},${outputId}&vs_currencies=usd`
          )
          const json = await results.json()
          if (json[inputId]?.usd && json[outputId]?.usd) {
            setCoingeckoPrices({
              inputCoingeckoPrice: json[inputId].usd,
              outputCoingeckoPrice: json[outputId].usd,
            })
          }
        } catch (e) {
          console.error('Loading coingecko prices: ', e)
        }
      }
    }

    if (inputTokenInfo && outputTokenInfo) {
      fetchTokenPrices()
    }
  }, [inputTokenInfo, outputTokenInfo])

  const onSwap = useCallback(async () => {
    if (!selectedRoute) return
    try {
      const client = mangoStore.getState().client
      const group = mangoStore.getState().group
      const actions = mangoStore.getState().actions
      const mangoAccount = mangoStore.getState().mangoAccount.current
      const inputBank = mangoStore.getState().swap.inputBank
      const outputBank = mangoStore.getState().swap.outputBank
      const set = mangoStore.getState().set
      const connection = mangoStore.getState().connection

      if (!mangoAccount || !group || !inputBank || !outputBank) return
      setSubmitting(true)
      const [ixs, alts] =
        selectedRoute.routerName === 'Mango'
          ? await prepareMangoRouterInstructions(
              selectedRoute,
              inputBank.mint,
              outputBank.mint,
              mangoAccount.owner
            )
          : await fetchJupiterTransaction(
              connection,
              selectedRoute,
              mangoAccount.owner,
              slippage,
              inputBank.mint,
              outputBank.mint
            )

      try {
        const tx = await client.marginTrade({
          group,
          mangoAccount,
          inputMintPk: inputBank.mint,
          amountIn: amountIn.toNumber(),
          outputMintPk: outputBank.mint,
          userDefinedInstructions: ixs,
          userDefinedAlts: alts,
          flashLoanType: { swap: {} },
        })
        set((s) => {
          s.successAnimation.swap = true
        })
        if (soundSettings['swap-success']) {
          successSound.play()
        }
        notify({
          title: 'Transaction confirmed',
          type: 'success',
          txid: tx,
          noSound: true,
        })
        actions.fetchGroup()
        actions.fetchSwapHistory(mangoAccount.publicKey.toString(), 30000)
        await actions.reloadMangoAccount()
      } catch (e) {
        console.error('onSwap error: ', e)
        if (isMangoError(e)) {
          notify({
            title: 'Transaction failed',
            description: e.message,
            txid: e?.txid,
            type: 'error',
          })
        }
      } finally {
        setSubmitting(false)
      }
    } catch (e) {
      console.error('Swap error:', e)
    } finally {
      onClose()
    }
  }, [amountIn, onClose, selectedRoute, soundSettings])

  const [balance, borrowAmount] = useMemo(() => {
    const mangoAccount = mangoStore.getState().mangoAccount.current
    const inputBank = mangoStore.getState().swap.inputBank
    if (!mangoAccount || !inputBank) return [0, 0]

    const balance = mangoAccount.getTokenDepositsUi(inputBank)
    const remainingBalance = balance - amountIn.toNumber()
    const borrowAmount = remainingBalance < 0 ? Math.abs(remainingBalance) : 0

    return [balance, borrowAmount]
  }, [amountIn])

  const coinGeckoPriceDifference = useMemo(() => {
    return amountOut?.toNumber()
      ? amountIn
          .div(amountOut)
          .minus(
            new Decimal(coingeckoPrices?.outputCoingeckoPrice).div(
              coingeckoPrices?.inputCoingeckoPrice
            )
          )
          .div(amountIn.div(amountOut))
          .mul(100)
      : new Decimal(0)
  }, [coingeckoPrices, amountIn, amountOut])

  return routes?.length &&
    selectedRoute &&
    inputTokenInfo &&
    outputTokenInfo &&
    amountOut ? (
    <div className="thin-scroll flex h-full flex-col justify-between overflow-y-auto">
      <div>
        <IconButton
          className="absolute top-4 left-4 mr-3 text-th-fgd-2"
          onClick={onClose}
          size="small"
          ref={focusRef}
        >
          <ArrowLeftIcon className="h-5 w-5" />
        </IconButton>
        <div className="flex justify-center bg-gradient-to-t from-th-bkg-1 to-th-bkg-2 p-6 pb-0">
          <div className="mb-4 flex w-full flex-col items-center border-b border-th-bkg-3 pb-4">
            <div className="relative mb-2 w-[72px]">
              <Image alt="" width="40" height="40" src={inputTokenIconUri} />
              <div className="absolute right-0 top-0">
                <Image
                  className="drop-shadow-md"
                  alt=""
                  width="40"
                  height="40"
                  src={outputTokenInfo?.logoURI}
                />
              </div>
            </div>
            <p className="mb-0.5 flex items-center text-center text-lg">
              <span className="mr-1 font-mono text-th-fgd-1">
                <FormatNumericValue value={amountIn} />
              </span>{' '}
              {inputTokenInfo?.symbol}
              <ArrowRightIcon className="mx-2 h-5 w-5 text-th-fgd-4" />
              <span className="mr-1 font-mono text-th-fgd-1">
                <FormatNumericValue value={amountOut} />
              </span>{' '}
              {`${outputTokenInfo?.symbol}`}
            </p>
          </div>
        </div>
        <div className="space-y-2 overflow-auto px-6">
          <div className="flex justify-between">
            <p className="text-sm text-th-fgd-3">{t('price')}</p>
            <div>
              <div className="flex items-center justify-end">
                <p className="text-right font-mono text-sm text-th-fgd-2">
                  {swapRate ? (
                    <>
                      1{' '}
                      <span className="font-body text-th-fgd-3">
                        {inputTokenInfo?.symbol} ≈{' '}
                      </span>
                      <FormatNumericValue value={amountOut.div(amountIn)} />{' '}
                      <span className="font-body text-th-fgd-3">
                        {outputTokenInfo?.symbol}
                      </span>
                    </>
                  ) : (
                    <>
                      1{' '}
                      <span className="font-body text-th-fgd-3">
                        {outputTokenInfo?.symbol} ≈{' '}
                      </span>
                      <FormatNumericValue value={amountIn.div(amountOut)} />{' '}
                      <span className="font-body text-th-fgd-3">
                        {inputTokenInfo?.symbol}
                      </span>
                    </>
                  )}
                </p>
                <ArrowsRightLeftIcon
                  className="default-transition ml-1 h-4 w-4 cursor-pointer text-th-fgd-2 hover:text-th-active"
                  onClick={() => setSwapRate(!swapRate)}
                />
              </div>
              <div className="space-y-2 px-1 text-xs">
                {coingeckoPrices?.outputCoingeckoPrice &&
                coingeckoPrices?.inputCoingeckoPrice ? (
                  <div
                    className={`text-right font-mono ${
                      coinGeckoPriceDifference.gt(1)
                        ? 'text-th-down'
                        : 'text-th-up'
                    }`}
                  >
                    {Decimal.abs(coinGeckoPriceDifference).toFixed(1)}%{' '}
                    <span className="font-body text-th-fgd-3">{`${
                      coinGeckoPriceDifference.lte(0)
                        ? 'cheaper'
                        : 'more expensive'
                    } than CoinGecko`}</span>
                  </div>
                ) : null}
              </div>
            </div>
          </div>
          <div className="flex justify-between">
            <p className="text-sm text-th-fgd-3">
              {t('swap:minimum-received')}
            </p>
            {outputTokenInfo?.decimals && selectedRoute ? (
              <p className="text-right font-mono text-sm text-th-fgd-2">
                {selectedRoute.swapMode === 'ExactIn' ? (
                  <FormatNumericValue
                    value={
                      selectedRoute.otherAmountThreshold /
                      10 ** outputTokenInfo.decimals
                    }
                    decimals={outputTokenInfo.decimals}
                  />
                ) : (
                  <FormatNumericValue
                    value={
                      selectedRoute.outAmount / 10 ** outputTokenInfo.decimals
                    }
                    decimals={outputTokenInfo.decimals}
                  />
                )}{' '}
                <span className="font-body text-th-fgd-3">
                  {outputTokenInfo?.symbol}
                </span>
              </p>
            ) : null}
          </div>
          {selectedRoute?.swapMode === 'ExactOut' ? (
            <div className="flex justify-between">
              <p className="text-sm text-th-fgd-3">{t('swap:maximum-cost')}</p>
              {inputTokenInfo?.decimals && selectedRoute ? (
                <p className="text-right font-mono text-sm text-th-fgd-2">
                  <FormatNumericValue
                    value={
                      selectedRoute.otherAmountThreshold /
                      10 ** inputTokenInfo.decimals
                    }
                    decimals={inputTokenInfo.decimals}
                  />{' '}
                  <span className="font-body text-th-fgd-3">
                    {inputTokenInfo?.symbol}
                  </span>
                </p>
              ) : null}
            </div>
          ) : null}
          <div className="flex justify-between">
            <Tooltip
              content={
                <>
                  <p>
                    The price impact is the difference observed between the
                    total value of the entry tokens swapped and the destination
                    tokens obtained.
                  </p>
                  <p className="mt-1">
                    The bigger the trade is, the bigger the price impact can be.
                  </p>
                </>
              }
            >
              <span className="tooltip-underline">
                {t('swap:price-impact')}
              </span>
            </Tooltip>
            <p className="text-right font-mono text-sm text-th-fgd-2">
              {selectedRoute?.priceImpactPct * 100 < 0.1
                ? '<0.1%'
                : `${(selectedRoute?.priceImpactPct * 100).toFixed(2)}%`}
            </p>
          </div>
          {borrowAmount ? (
            <div className="flex justify-between">
              <Tooltip
                content={
                  balance
                    ? t('swap:tooltip-borrow-balance', {
                        balance: formatNumericValue(balance),
                        borrowAmount: formatNumericValue(borrowAmount),
                        token: inputTokenInfo?.symbol,
                        rate: formatNumericValue(
                          inputBank!.getBorrowRateUi(),
                          2
                        ),
                      })
                    : t('swap:tooltip-borrow-no-balance', {
                        borrowAmount: formatNumericValue(borrowAmount),
                        token: inputTokenInfo?.symbol,
                        rate: formatNumericValue(
                          inputBank!.getBorrowRateUi(),
                          2
                        ),
                      })
                }
                delay={100}
              >
                <p className="tooltip-underline text-sm text-th-fgd-3">
                  {t('borrow-amount')}
                </p>
              </Tooltip>
              <p className="text-right font-mono text-sm text-th-fgd-2">
                ~<FormatNumericValue value={borrowAmount} />{' '}
                <span className="font-body">{inputTokenInfo?.symbol}</span>
              </p>
            </div>
          ) : null}
        </div>
      </div>
      <div className="p-6">
        <div className="mb-4 flex items-center justify-center">
          <Button
            onClick={onSwap}
            className="flex w-full items-center justify-center text-base"
            size="large"
          >
            {submitting ? (
              <Loading className="mr-2 h-5 w-5" />
            ) : (
              <div className="flex items-center">
                <ArrowsRightLeftIcon className="mr-2 h-5 w-5" />
                {t('swap')}
              </div>
            )}
          </Button>
        </div>
        <div className="rounded-md bg-th-bkg-2">
          <Disclosure>
            {({ open }) => (
              <>
                <Disclosure.Button
                  className={`default-transition flex w-full items-center justify-between rounded-md p-3 focus-visible:bg-th-bkg-3 ${
                    open ? 'mb-2 rounded-b-none' : ''
                  }`}
                >
                  <p>{open ? t('swap:hide-fees') : t('swap:show-fees')}</p>
                  <ChevronDownIcon
                    className={`${
                      open ? 'rotate-180' : 'rotate-360'
                    } h-5 w-5 text-th-fgd-3`}
                  />
                </Disclosure.Button>
                <Disclosure.Panel className="space-y-2 p-3 pt-0">
                  {borrowAmount ? (
                    <div className="flex justify-between">
                      <Tooltip
                        content={t('loan-origination-fee-tooltip', {
                          fee: `${(
                            inputBank!.loanOriginationFeeRate.toNumber() * 100
                          ).toFixed(3)}%`,
                        })}
                        delay={100}
                      >
                        <p className="tooltip-underline">
                          {t('loan-origination-fee')}
                        </p>
                      </Tooltip>
                      <p className="text-right font-mono text-th-fgd-2">
                        ~
                        <FormatNumericValue
                          value={
                            borrowAmount *
                            inputBank!.loanOriginationFeeRate.toNumber()
                          }
                          decimals={inputBank!.mintDecimals}
                        />{' '}
                        <span className="font-body text-th-fgd-4">
                          {inputBank!.name}
                        </span>
                      </p>
                    </div>
                  ) : null}
                  <div className="flex items-center justify-between">
                    <p className="text-sm text-th-fgd-3">
                      {t('swap:swap-route')}
                    </p>
                    <div
                      className="flex items-center text-th-fgd-2 md:hover:cursor-pointer md:hover:text-th-fgd-3"
                      role="button"
                      onClick={() => setShowRoutesModal(true)}
                    >
                      <span className="overflow-ellipsis whitespace-nowrap">
                        {selectedRoute?.marketInfos.map((info, index) => {
                          let includeSeparator = false
                          if (
                            selectedRoute?.marketInfos.length > 1 &&
                            index !== selectedRoute?.marketInfos.length - 1
                          ) {
                            includeSeparator = true
                          }
                          return (
                            <span key={index}>{`${info?.label} ${
                              includeSeparator ? 'x ' : ''
                            }`}</span>
                          )
                        })}
                      </span>
                      <PencilIcon className="ml-2 h-4 w-4 hover:text-th-active" />
                    </div>
                  </div>
                  {typeof feeValue === 'number' ? (
                    <div className="flex justify-between">
                      <p className="text-sm text-th-fgd-3">{t('fee')}</p>
                      <div className="flex items-center">
                        <p className="text-right font-mono text-sm text-th-fgd-2">
                          ≈ ${feeValue?.toFixed(2)}
                        </p>
                      </div>
                    </div>
                  ) : (
                    selectedRoute?.marketInfos.map((info, index) => {
                      const feeToken = jupiterTokens.find(
                        (item) => item?.address === info.lpFee?.mint
                      )
                      return (
                        <div className="flex justify-between" key={index}>
                          <p className="text-sm text-th-fgd-3">
                            {t('swap:fees-paid-to', {
                              route: info?.label,
                            })}
                          </p>
                          {feeToken?.decimals && (
                            <p className="pl-4 text-right font-mono text-sm text-th-fgd-2">
                              {(
                                info.lpFee?.amount /
                                Math.pow(10, feeToken.decimals)
                              ).toFixed(6)}{' '}
                              <span className="font-body">
                                {feeToken?.symbol}
                              </span>{' '}
                              (
                              {(info.lpFee?.pct * 100).toLocaleString(
                                undefined,
                                {
                                  maximumSignificantDigits: 2,
                                }
                              )}
                              %)
                            </p>
                          )}
                        </div>
                      )
                    })
                  )}
                </Disclosure.Panel>
              </>
            )}
          </Disclosure>
        </div>
      </div>
      {showRoutesModal ? (
        <RoutesModal
          show={showRoutesModal}
          onClose={() => setShowRoutesModal(false)}
          setSelectedRoute={setSelectedRoute}
          selectedRoute={selectedRoute}
          routes={routes}
          inputTokenSymbol={inputTokenInfo?.name}
          outputTokenInfo={outputTokenInfo}
        />
      ) : null}
    </div>
  ) : null
}

export default React.memo(SwapReviewRouteInfo)