chore: refactoring bag (#6039)

* chore: refactoring bag component to sub components (#6027) * moving totalEthPrice to hook * moving everything from bag to bag footer * moving transaction state to sep hook * explicit type * itemsInBag * fixing transaction tracking * chore: refactor useFetchAssets to make it more readable (#6043) * chore: refactoring useFetchAssets to make it more readable * remvoing eslint stuff * extracting what can be * comments * removing feature flag * changing return type of useUsd hook * zustand shallow
2023-03-16 14:39:50 -04:00 · 2023-03-16 14:39:50 -04:00 · a362f8797a
commit a362f8797a
parent 783f42abcc
15 changed files with 352 additions and 296 deletions
--- a/src/components/FeatureFlagModal/FeatureFlagModal.tsx
+++ b/src/components/FeatureFlagModal/FeatureFlagModal.tsx
@ -1,5 +1,4 @@
 import { BaseVariant, FeatureFlag, featureFlagSettings, useUpdateFlag } from 'featureFlags'
-import { GqlRoutingVariant, useGqlRoutingFlag } from 'featureFlags/flags/gqlRouting'
 import { NftGraphqlVariant, useNftGraphqlFlag } from 'featureFlags/flags/nftlGraphql'
 import { PayWithAnyTokenVariant, usePayWithAnyTokenFlag } from 'featureFlags/flags/payWithAnyToken'
 import { SwapWidgetVariant, useSwapWidgetFlag } from 'featureFlags/flags/swapWidget'
@ -218,12 +217,6 @@ export default function FeatureFlagModal() {
        featureFlag={FeatureFlag.swapWidget}
        label="Swap Widget"
      />
-      <FeatureFlagOption
-        variant={GqlRoutingVariant}
-        value={useGqlRoutingFlag()}
-        featureFlag={FeatureFlag.gqlRouting}
-        label="GraphQL NFT Routing"
-      />
      <FeatureFlagOption
        variant={NftGraphqlVariant}
        value={useNftGraphqlFlag()}
--- a/src/featureFlags/flags/featureFlags.ts
+++ b/src/featureFlags/flags/featureFlags.ts
@ -6,7 +6,6 @@ export enum FeatureFlag {
  permit2 = 'permit2',
  payWithAnyToken = 'payWithAnyToken',
  swapWidget = 'swap_widget_replacement_enabled',
-  gqlRouting = 'gqlRouting',
  statsigDummy = 'web_dummy_gate_amplitude_id',
  nftGraphql = 'nft_graphql_migration',
  taxService = 'tax_service_banner',
--- a/src/featureFlags/flags/gqlRouting.ts
+++ b/src/featureFlags/flags/gqlRouting.ts
@ -1,7 +0,0 @@
-import { BaseVariant, FeatureFlag, useBaseFlag } from '../index'
-
-export function useGqlRoutingFlag(): BaseVariant {
-  return useBaseFlag(FeatureFlag.gqlRouting, BaseVariant.Enabled)
-}
-
-export { BaseVariant as GqlRoutingVariant }
--- a/src/nft/components/bag/Bag.tsx
+++ b/src/nft/components/bag/Bag.tsx
@ -1,38 +1,16 @@
-import { BigNumber } from '@ethersproject/bignumber'
 import { Trans } from '@lingui/macro'
 import { sendAnalyticsEvent } from '@uniswap/analytics'
 import { NFTEventName } from '@uniswap/analytics-events'
-import { useWeb3React } from '@web3-react/core'
-import { GqlRoutingVariant, useGqlRoutingFlag } from 'featureFlags/flags/gqlRouting'
-import { useNftRouteLazyQuery } from 'graphql/data/__generated__/types-and-hooks'
 import { useIsNftDetailsPage, useIsNftPage, useIsNftProfilePage } from 'hooks/useIsNftPage'
 import { BagFooter } from 'nft/components/bag/BagFooter'
 import { Box } from 'nft/components/Box'
 import { Portal } from 'nft/components/common/Portal'
 import { Column } from 'nft/components/Flex'
 import { Overlay } from 'nft/components/modals/Overlay'
-import {
-  useBag,
-  useIsMobile,
-  useProfilePageState,
-  useSellAsset,
-  useSendTransaction,
-  useTransactionResponse,
-} from 'nft/hooks'
-import { useTokenInput } from 'nft/hooks/useTokenInput'
-import { fetchRoute } from 'nft/queries'
-import { BagItemStatus, BagStatus, ProfilePageStateType, RouteResponse, TxStateType } from 'nft/types'
-import {
-  buildNftTradeInputFromBagItems,
-  buildSellObject,
-  formatAssetEventProperties,
-  recalculateBagUsingPooledAssets,
-  sortUpdatedAssets,
-} from 'nft/utils'
-import { buildRouteResponse } from 'nft/utils/nftRoute'
-import { combineBuyItemsWithTxRoute } from 'nft/utils/txRoute/combineItemsWithTxRoute'
-import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
-import { useQueryClient } from 'react-query'
+import { useBag, useIsMobile, useProfilePageState, useSellAsset } from 'nft/hooks'
+import { BagStatus, ProfilePageStateType } from 'nft/types'
+import { formatAssetEventProperties, recalculateBagUsingPooledAssets } from 'nft/utils'
+import { useCallback, useEffect, useMemo, useState } from 'react'
 import styled from 'styled-components/macro'
 import { Z_INDEX } from 'theme/zIndex'
 import { shallow } from 'zustand/shallow'
@ -120,8 +98,6 @@ const ScrollingIndicator = ({ top, show }: SeparatorProps) => (
 )

 const Bag = () => {
-  const { account, provider } = useWeb3React()
-
  const { resetSellAssets, sellAssets } = useSellAsset(
    ({ reset, sellAssets }) => ({
      resetSellAssets: reset,
@ -132,36 +108,16 @@ const Bag = () => {

  const { setProfilePageState } = useProfilePageState(({ setProfilePageState }) => ({ setProfilePageState }))

-  const {
-    bagStatus,
-    setBagStatus,
-    didOpenUnavailableAssets,
-    setDidOpenUnavailableAssets,
-    bagIsLocked,
-    setLocked,
-    reset,
-    setItemsInBag,
-    bagExpanded,
-    toggleBag,
-    setTotalEthPrice,
-    setBagExpanded,
-  } = useBag((state) => ({ ...state, bagIsLocked: state.isLocked, uncheckedItemsInBag: state.itemsInBag }), shallow)
+  const { bagStatus, bagIsLocked, reset, bagExpanded, toggleBag, setBagExpanded } = useBag(
+    (state) => ({ ...state, bagIsLocked: state.isLocked, uncheckedItemsInBag: state.itemsInBag }),
+    shallow
+  )
  const { uncheckedItemsInBag } = useBag(({ itemsInBag }) => ({ uncheckedItemsInBag: itemsInBag }))

  const isProfilePage = useIsNftProfilePage()
  const isDetailsPage = useIsNftDetailsPage()
  const isNFTPage = useIsNftPage()
  const isMobile = useIsMobile()
-  const usingGqlRouting = useGqlRoutingFlag() === GqlRoutingVariant.Enabled
-
-  const sendTransaction = useSendTransaction((state) => state.sendTransaction)
-  const transactionState = useSendTransaction((state) => state.state)
-  const setTransactionState = useSendTransaction((state) => state.setState)
-  const transactionStateRef = useRef(transactionState)
-  const [setTransactionResponse] = useTransactionResponse((state) => [state.setTransactionResponse])
-  const tokenTradeInput = useTokenInput((state) => state.tokenTradeInput)
-
-  const queryClient = useQueryClient()

  const itemsInBag = useMemo(() => recalculateBagUsingPooledAssets(uncheckedItemsInBag), [uncheckedItemsInBag])

@ -175,210 +131,14 @@ const Bag = () => {
    }
  }

-  const { totalEthPrice } = useMemo(() => {
-    const totalEthPrice = itemsInBag.reduce(
-      (total, item) =>
-        item.status !== BagItemStatus.UNAVAILABLE
-          ? total.add(
-              BigNumber.from(
-                item.asset.updatedPriceInfo ? item.asset.updatedPriceInfo.ETHPrice : item.asset.priceInfo.ETHPrice
-              )
-            )
-          : total,
-      BigNumber.from(0)
-    )
-
-    return { totalEthPrice }
-  }, [itemsInBag])
-
-  const purchaseAssets = async (routingData: RouteResponse, purchasingWithErc20: boolean) => {
-    if (!provider || !routingData) return
-    const purchaseResponse = await sendTransaction(
-      provider?.getSigner(),
-      itemsInBag.filter((item) => item.status !== BagItemStatus.UNAVAILABLE).map((item) => item.asset),
-      routingData,
-      purchasingWithErc20
-    )
-    if (
-      purchaseResponse &&
-      (transactionStateRef.current === TxStateType.Success || transactionStateRef.current === TxStateType.Failed)
-    ) {
-      setLocked(false)
-      setModalIsOpen(false)
-      setTransactionResponse(purchaseResponse)
-      setBagExpanded({ bagExpanded: false })
-      reset()
-    }
-  }
-
  const handleCloseBag = useCallback(() => {
    setBagExpanded({ bagExpanded: false, manualClose: true })
  }, [setBagExpanded])

-  const [fetchGqlRoute] = useNftRouteLazyQuery()
-
-  const fetchAssets = async () => {
-    const itemsToBuy = itemsInBag.filter((item) => item.status !== BagItemStatus.UNAVAILABLE).map((item) => item.asset)
-    const ethSellObject = buildSellObject(
-      itemsToBuy
-        .reduce((ethTotal, asset) => ethTotal.add(BigNumber.from(asset.priceInfo.ETHPrice)), BigNumber.from(0))
-        .toString()
-    )
-
-    didOpenUnavailableAssets && setDidOpenUnavailableAssets(false)
-    !bagIsLocked && setLocked(true)
-    setBagStatus(BagStatus.FETCHING_ROUTE)
-    try {
-      if (usingGqlRouting) {
-        fetchGqlRoute({
-          variables: {
-            senderAddress: usingGqlRouting && account ? account : '',
-            nftTrades: usingGqlRouting ? buildNftTradeInputFromBagItems(itemsInBag) : [],
-            tokenTrades: tokenTradeInput ? tokenTradeInput : undefined,
-          },
-          onCompleted: (data) => {
-            if (!data.nftRoute || !data.nftRoute.route) {
-              setBagStatus(BagStatus.ADDING_TO_BAG)
-              setLocked(false)
-              return
-            }
-
-            const purchasingWithErc20 = !!tokenTradeInput
-            const { route, routeResponse } = buildRouteResponse(data.nftRoute, purchasingWithErc20)
-
-            const { hasPriceAdjustment, updatedAssets } = combineBuyItemsWithTxRoute(itemsToBuy, route)
-            const shouldRefetchCalldata = hasPriceAdjustment && purchasingWithErc20
-
-            const fetchedPriceChangedAssets = updatedAssets
-              .filter((asset) => asset.updatedPriceInfo)
-              .sort(sortUpdatedAssets)
-            const fetchedUnavailableAssets = updatedAssets.filter((asset) => asset.isUnavailable)
-            const fetchedUnchangedAssets = updatedAssets.filter(
-              (asset) => !asset.updatedPriceInfo && !asset.isUnavailable
-            )
-            const hasReviewedAssets = fetchedUnchangedAssets.length > 0
-            const hasAssetsInReview = fetchedPriceChangedAssets.length > 0
-            const hasUnavailableAssets = fetchedUnavailableAssets.length > 0
-            const hasAssets = hasReviewedAssets || hasAssetsInReview || hasUnavailableAssets
-            const shouldReview = hasAssetsInReview || hasUnavailableAssets
-
-            setItemsInBag([
-              ...fetchedUnavailableAssets.map((unavailableAsset) => ({
-                asset: unavailableAsset,
-                status: BagItemStatus.UNAVAILABLE,
-              })),
-              ...fetchedPriceChangedAssets.map((changedAsset) => ({
-                asset: changedAsset,
-                status: BagItemStatus.REVIEWING_PRICE_CHANGE,
-              })),
-              ...fetchedUnchangedAssets.map((unchangedAsset) => ({
-                asset: unchangedAsset,
-                status: BagItemStatus.REVIEWED,
-              })),
-            ])
-
-            let shouldLock = false
-
-            if (hasAssets) {
-              if (!shouldReview) {
-                if (shouldRefetchCalldata) {
-                  setBagStatus(BagStatus.CONFIRM_QUOTE)
-                } else {
-                  purchaseAssets(routeResponse, purchasingWithErc20)
-                  setBagStatus(BagStatus.CONFIRMING_IN_WALLET)
-                  shouldLock = true
-                }
-              } else if (!hasAssetsInReview) setBagStatus(BagStatus.CONFIRM_REVIEW)
-              else {
-                setBagStatus(BagStatus.IN_REVIEW)
-              }
-            } else {
-              setBagStatus(BagStatus.ADDING_TO_BAG)
-            }
-
-            setLocked(shouldLock)
-          },
-        })
-      } else {
-        const routeData = await queryClient.fetchQuery(['assetsRoute', ethSellObject, itemsToBuy, account], () =>
-          fetchRoute({
-            toSell: [ethSellObject],
-            toBuy: itemsToBuy,
-            senderAddress: account ?? '',
-          })
-        )
-
-        const { updatedAssets } = combineBuyItemsWithTxRoute(itemsToBuy, routeData.route)
-
-        const fetchedPriceChangedAssets = updatedAssets
-          .filter((asset) => asset.updatedPriceInfo)
-          .sort(sortUpdatedAssets)
-        const fetchedUnavailableAssets = updatedAssets.filter((asset) => asset.isUnavailable)
-        const fetchedUnchangedAssets = updatedAssets.filter((asset) => !asset.updatedPriceInfo && !asset.isUnavailable)
-        const hasReviewedAssets = fetchedUnchangedAssets.length > 0
-        const hasAssetsInReview = fetchedPriceChangedAssets.length > 0
-        const hasUnavailableAssets = fetchedUnavailableAssets.length > 0
-        const hasAssets = hasReviewedAssets || hasAssetsInReview || hasUnavailableAssets
-        const shouldReview = hasAssetsInReview || hasUnavailableAssets
-
-        setItemsInBag([
-          ...fetchedUnavailableAssets.map((unavailableAsset) => ({
-            asset: unavailableAsset,
-            status: BagItemStatus.UNAVAILABLE,
-          })),
-          ...fetchedPriceChangedAssets.map((changedAsset) => ({
-            asset: changedAsset,
-            status: BagItemStatus.REVIEWING_PRICE_CHANGE,
-          })),
-          ...fetchedUnchangedAssets.map((unchangedAsset) => ({
-            asset: unchangedAsset,
-            status: BagItemStatus.REVIEWED,
-          })),
-        ])
-        setLocked(false)
-
-        if (hasAssets) {
-          if (!shouldReview) {
-            purchaseAssets(routeData, false)
-            setBagStatus(BagStatus.CONFIRMING_IN_WALLET)
-          } else if (!hasAssetsInReview) setBagStatus(BagStatus.CONFIRM_REVIEW)
-          else {
-            setBagStatus(BagStatus.IN_REVIEW)
-          }
-        } else {
-          setBagStatus(BagStatus.ADDING_TO_BAG)
-        }
-      }
-    } catch (error) {
-      setBagStatus(BagStatus.ADDING_TO_BAG)
-    }
-  }
-
-  useEffect(() => {
-    useSendTransaction.subscribe((state) => (transactionStateRef.current = state.state))
-  }, [])
-
  useEffect(() => {
    if (bagIsLocked && !isModalOpen) setModalIsOpen(true)
  }, [bagIsLocked, isModalOpen])

-  useEffect(() => {
-    if (transactionStateRef.current === TxStateType.Confirming) setBagStatus(BagStatus.PROCESSING_TRANSACTION)
-    if (transactionStateRef.current === TxStateType.Denied || transactionStateRef.current === TxStateType.Invalid) {
-      if (transactionStateRef.current === TxStateType.Invalid) setBagStatus(BagStatus.WARNING)
-      else setBagStatus(BagStatus.CONFIRM_REVIEW)
-      setTransactionState(TxStateType.New)
-
-      setLocked(false)
-      setModalIsOpen(false)
-    }
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [transactionStateRef.current])
-
-  useEffect(() => {
-    setTotalEthPrice(totalEthPrice)
-  }, [totalEthPrice, setTotalEthPrice])
-
  const hasAssetsToShow = itemsInBag.length > 0

  const scrollHandler = (event: React.UIEvent<HTMLDivElement>) => {
@ -422,7 +182,7 @@ const Bag = () => {
          {isProfilePage ? <ProfileBagContent /> : <BagContent />}
        </Column>
        {hasAssetsToShow && !isProfilePage && (
-          <BagFooter totalEthPrice={totalEthPrice} fetchAssets={fetchAssets} eventProperties={eventProperties} />
+          <BagFooter setModalIsOpen={setModalIsOpen} eventProperties={eventProperties} />
        )}
        {isSellingAssets && isProfilePage && (
          <ContinueButton
--- a/src/nft/components/bag/BagFooter.tsx
+++ b/src/nft/components/bag/BagFooter.tsx
@ -20,10 +20,13 @@ import { useStablecoinValue } from 'hooks/useStablecoinPrice'
 import { useTokenBalance } from 'lib/hooks/useCurrencyBalance'
 import tryParseCurrencyAmount from 'lib/utils/tryParseCurrencyAmount'
 import { useBag } from 'nft/hooks/useBag'
+import { useBagTotalEthPrice } from 'nft/hooks/useBagTotalEthPrice'
 import useDerivedPayWithAnyTokenSwapInfo from 'nft/hooks/useDerivedPayWithAnyTokenSwapInfo'
+import { useFetchAssets } from 'nft/hooks/useFetchAssets'
 import usePayWithAnyTokenSwap from 'nft/hooks/usePayWithAnyTokenSwap'
 import usePermit2Approval from 'nft/hooks/usePermit2Approval'
 import { PriceImpact, usePriceImpact } from 'nft/hooks/usePriceImpact'
+import { useSubscribeTransactionState } from 'nft/hooks/useSubscribeTransactionState'
 import { useTokenInput } from 'nft/hooks/useTokenInput'
 import { useWalletBalance } from 'nft/hooks/useWalletBalance'
 import { BagStatus } from 'nft/types'
@ -272,8 +275,7 @@ const FiatValue = ({
 }

 interface BagFooterProps {
-  totalEthPrice: BigNumber
-  fetchAssets: () => void
+  setModalIsOpen: (open: boolean) => void
  eventProperties: Record<string, unknown>
 }

@ -284,11 +286,12 @@ const PENDING_BAG_STATUSES = [
  BagStatus.PROCESSING_TRANSACTION,
 ]

-export const BagFooter = ({ totalEthPrice, fetchAssets, eventProperties }: BagFooterProps) => {
+export const BagFooter = ({ setModalIsOpen, eventProperties }: BagFooterProps) => {
  const toggleWalletModal = useToggleWalletModal()
  const theme = useTheme()
  const { account, chainId, connector } = useWeb3React()
  const connected = Boolean(account && chainId)
+  const totalEthPrice = useBagTotalEthPrice()
  const shouldUsePayWithAnyToken = usePayWithAnyTokenEnabled()
  const inputCurrency = useTokenInput((state) => state.inputCurrency)
  const setInputCurrency = useTokenInput((state) => state.setInputCurrency)
@ -297,7 +300,6 @@ export const BagFooter = ({ totalEthPrice, fetchAssets, eventProperties }: BagFo
    account ?? undefined,
    !!inputCurrency && inputCurrency.isToken ? inputCurrency : undefined
  )
-
  const {
    isLocked: bagIsLocked,
    bagStatus,
@ -312,13 +314,14 @@ export const BagFooter = ({ totalEthPrice, fetchAssets, eventProperties }: BagFo
    }),
    shallow
  )
-
  const [tokenSelectorOpen, setTokenSelectorOpen] = useState(false)
-
  const isPending = PENDING_BAG_STATUSES.includes(bagStatus)
  const activeCurrency = inputCurrency ?? defaultCurrency
  const usingPayWithAnyToken = !!inputCurrency && shouldUsePayWithAnyToken && chainId === SupportedChainId.MAINNET

+  useSubscribeTransactionState(setModalIsOpen)
+  const fetchAssets = useFetchAssets()
+
  const parsedOutputAmount = useMemo(() => {
    return tryParseCurrencyAmount(formatEther(totalEthPrice.toString()), defaultCurrency ?? undefined)
  }, [defaultCurrency, totalEthPrice])
@ -374,7 +377,7 @@ export const BagFooter = ({ totalEthPrice, fetchAssets, eventProperties }: BagFo
    handleClick,
    buttonColor,
  } = useMemo(() => {
-    let handleClick = fetchAssets
+    let handleClick: (() => void) | (() => Promise<void>) = fetchAssets
    let buttonText = <Trans>Something went wrong</Trans>
    let disabled = true
    let warningText = undefined
--- a/src/nft/components/bag/MobileHoverBag.tsx
+++ b/src/nft/components/bag/MobileHoverBag.tsx
@ -2,14 +2,15 @@ import { Box } from 'nft/components/Box'
 import { Column, Row } from 'nft/components/Flex'
 import { body, bodySmall } from 'nft/css/common.css'
 import { useBag } from 'nft/hooks'
+import { useBagTotalEthPrice, useBagTotalUsdPrice } from 'nft/hooks/useBagTotalEthPrice'
 import { ethNumberStandardFormatter, formatWeiToDecimal, roundAndPluralize } from 'nft/utils'

 import * as styles from './MobileHoverBag.css'
 export const MobileHoverBag = () => {
  const itemsInBag = useBag((state) => state.itemsInBag)
  const toggleBag = useBag((state) => state.toggleBag)
-  const totalEthPrice = useBag((state) => state.totalEthPrice)
-  const totalUsdPrice = useBag((state) => state.totalUsdPrice)
+  const totalEthPrice = useBagTotalEthPrice()
+  const totalUsdPrice = useBagTotalUsdPrice()

  const shouldShowBag = itemsInBag.length > 0

@ -47,11 +48,10 @@ export const MobileHoverBag = () => {
            {roundAndPluralize(itemsInBag.length, 'NFT')}
          </Box>
          <Row gap="8">
-            <Box className={body}>{`${formatWeiToDecimal(totalEthPrice.toString())}`}</Box>
-            <Box color="textSecondary" className={bodySmall}>{`${ethNumberStandardFormatter(
-              totalUsdPrice,
-              true
-            )}`}</Box>
+            <Box className={body}>{`${formatWeiToDecimal(totalEthPrice.toString())}`} ETH</Box>
+            <Box color="textSecondary" className={bodySmall}>
+              {ethNumberStandardFormatter(totalUsdPrice, true)}
+            </Box>
          </Row>
        </Column>
      </Row>
--- a/src/nft/hooks/useBag.ts
+++ b/src/nft/hooks/useBag.ts
@ -1,4 +1,3 @@
-import { BigNumber } from '@ethersproject/bignumber'
 import { NftStandard } from 'graphql/data/__generated__/types-and-hooks'
 import { BagItem, BagItemStatus, BagStatus, UpdatedGenieAsset } from 'nft/types'
 import { v4 as uuidv4 } from 'uuid'
@ -12,10 +11,6 @@ interface BagState {
  setBagStatus: (state: BagStatus) => void
  itemsInBag: BagItem[]
  setItemsInBag: (items: BagItem[]) => void
-  totalEthPrice: BigNumber
-  setTotalEthPrice: (totalEthPrice: BigNumber) => void
-  totalUsdPrice: number | undefined
-  setTotalUsdPrice: (totalUsdPrice: number | undefined) => void
  addAssetsToBag: (asset: UpdatedGenieAsset[], fromSweep?: boolean) => void
  removeAssetsFromBag: (assets: UpdatedGenieAsset[], fromSweep?: boolean) => void
  markAssetAsReviewed: (asset: UpdatedGenieAsset, toKeep: boolean) => void
@ -72,16 +67,6 @@ export const useBag = create<BagState>()(
        set(() => ({
          itemsInBag: items,
        })),
-      totalEthPrice: BigNumber.from(0),
-      setTotalEthPrice: (totalEthPrice) =>
-        set(() => ({
-          totalEthPrice,
-        })),
-      totalUsdPrice: undefined,
-      setTotalUsdPrice: (totalUsdPrice) =>
-        set(() => ({
-          totalUsdPrice,
-        })),
      addAssetsToBag: (assets, fromSweep = false) =>
        set(({ itemsInBag }) => {
          if (get().isLocked) return { itemsInBag: get().itemsInBag }
--- a/src/nft/hooks/useBagTotalEthPrice.ts
+++ b/src/nft/hooks/useBagTotalEthPrice.ts
@ -0,0 +1,44 @@
+import { BigNumber } from '@ethersproject/bignumber'
+import { formatEther } from '@ethersproject/units'
+import { useCurrency } from 'hooks/Tokens'
+import { useStablecoinValue } from 'hooks/useStablecoinPrice'
+import tryParseCurrencyAmount from 'lib/utils/tryParseCurrencyAmount'
+import { BagItemStatus } from 'nft/types'
+import { useMemo } from 'react'
+
+import { useBag } from './useBag'
+
+export function useBagTotalEthPrice(): BigNumber {
+  const itemsInBag = useBag((state) => state.itemsInBag)
+
+  return useMemo(() => {
+    const totalEthPrice = itemsInBag.reduce(
+      (total, item) =>
+        item.status !== BagItemStatus.UNAVAILABLE
+          ? total.add(
+              BigNumber.from(
+                item.asset.updatedPriceInfo ? item.asset.updatedPriceInfo.ETHPrice : item.asset.priceInfo.ETHPrice
+              )
+            )
+          : total,
+      BigNumber.from(0)
+    )
+
+    return totalEthPrice
+  }, [itemsInBag])
+}
+
+export function useBagTotalUsdPrice(): string | undefined {
+  const totalEthPrice = useBagTotalEthPrice()
+  const defaultCurrency = useCurrency('ETH')
+
+  const parsedOutputAmount = useMemo(() => {
+    return tryParseCurrencyAmount(formatEther(totalEthPrice.toString()), defaultCurrency ?? undefined)
+  }, [defaultCurrency, totalEthPrice])
+
+  const usdcValue = useStablecoinValue(parsedOutputAmount)
+
+  return useMemo(() => {
+    return usdcValue?.toExact()
+  }, [usdcValue])
+}
--- a/src/nft/hooks/useFetchAssets.ts
+++ b/src/nft/hooks/useFetchAssets.ts
@ -0,0 +1,102 @@
+import { useWeb3React } from '@web3-react/core'
+import { useNftRouteLazyQuery } from 'graphql/data/__generated__/types-and-hooks'
+import { BagStatus } from 'nft/types'
+import { buildNftTradeInputFromBagItems, recalculateBagUsingPooledAssets } from 'nft/utils'
+import { getNextBagState, getPurchasableAssets } from 'nft/utils/bag'
+import { buildRouteResponse } from 'nft/utils/nftRoute'
+import { useCallback, useMemo } from 'react'
+import { shallow } from 'zustand/shallow'
+
+import { useBag } from './useBag'
+import { usePurchaseAssets } from './usePurchaseAssets'
+import { useTokenInput } from './useTokenInput'
+
+export function useFetchAssets(): () => Promise<void> {
+  const { account } = useWeb3React()
+
+  const {
+    itemsInBag: uncheckedItemsInBag,
+    setBagStatus,
+    didOpenUnavailableAssets,
+    setDidOpenUnavailableAssets,
+    isLocked: bagIsLocked,
+    setLocked: setBagLocked,
+    setItemsInBag,
+  } = useBag(
+    ({
+      itemsInBag,
+      setBagStatus,
+      didOpenUnavailableAssets,
+      setDidOpenUnavailableAssets,
+      isLocked,
+      setLocked,
+      setItemsInBag,
+    }) => ({
+      itemsInBag,
+      setBagStatus,
+      didOpenUnavailableAssets,
+      setDidOpenUnavailableAssets,
+      isLocked,
+      setLocked,
+      setItemsInBag,
+    }),
+    shallow
+  )
+  const tokenTradeInput = useTokenInput((state) => state.tokenTradeInput)
+  const itemsInBag = useMemo(() => recalculateBagUsingPooledAssets(uncheckedItemsInBag), [uncheckedItemsInBag])
+
+  const [fetchGqlRoute] = useNftRouteLazyQuery()
+  const purchaseAssets = usePurchaseAssets()
+
+  const resetStateBeforeFetch = useCallback(() => {
+    didOpenUnavailableAssets && setDidOpenUnavailableAssets(false)
+    !bagIsLocked && setBagLocked(true)
+    setBagStatus(BagStatus.FETCHING_ROUTE)
+  }, [bagIsLocked, didOpenUnavailableAssets, setBagLocked, setBagStatus, setDidOpenUnavailableAssets])
+
+  return useCallback(async () => {
+    resetStateBeforeFetch()
+
+    fetchGqlRoute({
+      variables: {
+        senderAddress: account ? account : '',
+        nftTrades: buildNftTradeInputFromBagItems(itemsInBag),
+        tokenTrades: tokenTradeInput ? tokenTradeInput : undefined,
+      },
+      onCompleted: (data) => {
+        if (!data.nftRoute || !data.nftRoute.route) {
+          setBagStatus(BagStatus.ADDING_TO_BAG)
+          setBagLocked(false)
+          return
+        }
+
+        const wishAssetsToBuy = getPurchasableAssets(itemsInBag)
+        const purchasingWithErc20 = !!tokenTradeInput
+        const { route, routeResponse } = buildRouteResponse(data.nftRoute, purchasingWithErc20)
+
+        const { newBagItems, nextBagStatus } = getNextBagState(wishAssetsToBuy, route, purchasingWithErc20)
+
+        setItemsInBag(newBagItems)
+        setBagStatus(nextBagStatus)
+
+        if (nextBagStatus === BagStatus.CONFIRMING_IN_WALLET) {
+          purchaseAssets(routeResponse, wishAssetsToBuy, purchasingWithErc20)
+          setBagLocked(true)
+          return
+        }
+
+        setBagLocked(false)
+      },
+    })
+  }, [
+    account,
+    fetchGqlRoute,
+    itemsInBag,
+    purchaseAssets,
+    resetStateBeforeFetch,
+    setBagLocked,
+    setBagStatus,
+    setItemsInBag,
+    tokenTradeInput,
+  ])
+}
--- a/src/nft/hooks/usePurchaseAssets.ts
+++ b/src/nft/hooks/usePurchaseAssets.ts
@ -0,0 +1,52 @@
+import { useWeb3React } from '@web3-react/core'
+import { RouteResponse, UpdatedGenieAsset } from 'nft/types'
+import { useCallback } from 'react'
+import shallow from 'zustand/shallow'
+
+import { useBag } from './useBag'
+import { useSendTransaction } from './useSendTransaction'
+import { useTransactionResponse } from './useTransactionResponse'
+
+export function usePurchaseAssets(): (
+  routingData: RouteResponse,
+  assetsToBuy: UpdatedGenieAsset[],
+  purchasingWithErc20?: boolean
+) => Promise<void> {
+  const { provider } = useWeb3React()
+  const sendTransaction = useSendTransaction((state) => state.sendTransaction)
+  const setTransactionResponse = useTransactionResponse((state) => state.setTransactionResponse)
+
+  const {
+    setLocked: setBagLocked,
+    setBagExpanded,
+    reset: resetBag,
+  } = useBag(
+    ({ setLocked, setBagExpanded, reset }) => ({
+      setLocked,
+      setBagExpanded,
+      reset,
+    }),
+    shallow
+  )
+
+  return useCallback(
+    async (routingData: RouteResponse, assetsToBuy: UpdatedGenieAsset[], purchasingWithErc20 = false) => {
+      if (!provider) return
+
+      const purchaseResponse = await sendTransaction(
+        provider.getSigner(),
+        assetsToBuy,
+        routingData,
+        purchasingWithErc20
+      )
+
+      if (purchaseResponse) {
+        setBagLocked(false)
+        setTransactionResponse(purchaseResponse)
+        setBagExpanded({ bagExpanded: false })
+        resetBag()
+      }
+    },
+    [provider, resetBag, sendTransaction, setBagExpanded, setBagLocked, setTransactionResponse]
+  )
+}
--- a/src/nft/hooks/useSendTransaction.ts
+++ b/src/nft/hooks/useSendTransaction.ts
@ -12,7 +12,7 @@ import ERC721 from '../../abis/erc721.json'
 import ERC1155 from '../../abis/erc1155.json'
 import CryptoPunksMarket from '../abis/CryptoPunksMarket.json'
 import { GenieAsset, RouteResponse, RoutingItem, TxResponse, TxStateType, UpdatedGenieAsset } from '../types'
-import { combineBuyItemsWithTxRoute } from '../utils/txRoute/combineItemsWithTxRoute'
+import { compareAssetsWithTransactionRoute } from '../utils/txRoute/combineItemsWithTxRoute'

 interface TxState {
  state: TxStateType
@ -147,7 +147,7 @@ const findNFTsPurchased = (
    )
  })

-  return combineBuyItemsWithTxRoute(transferredItems, txRoute).updatedAssets
+  return compareAssetsWithTransactionRoute(transferredItems, txRoute).updatedAssets
 }

 const findNFTsNotPurchased = (toBuy: GenieAsset[], nftsPurchased: UpdatedGenieAsset[]) => {
--- a/src/nft/hooks/useSubscribeTransactionState.ts
+++ b/src/nft/hooks/useSubscribeTransactionState.ts
@ -0,0 +1,38 @@
+import { BagStatus, TxStateType } from 'nft/types'
+import { useEffect, useRef } from 'react'
+import { shallow } from 'zustand/shallow'
+
+import { useBag } from './useBag'
+import { useSendTransaction } from './useSendTransaction'
+
+export function useSubscribeTransactionState(setModalIsOpen: (isOpen: boolean) => void) {
+  const transactionState = useSendTransaction((state) => state.state)
+  const setTransactionState = useSendTransaction((state) => state.setState)
+  const transactionStateRef = useRef(transactionState)
+  const { setBagStatus, setLocked: setBagLocked } = useBag(
+    ({ setBagExpanded, setBagStatus, setLocked }) => ({
+      setBagExpanded,
+      setBagStatus,
+      setLocked,
+    }),
+    shallow
+  )
+
+  useEffect(() => {
+    useSendTransaction.subscribe((state) => (transactionStateRef.current = state.state))
+  }, [])
+
+  useEffect(() => {
+    if (transactionStateRef.current === TxStateType.Confirming) setBagStatus(BagStatus.PROCESSING_TRANSACTION)
+    if (transactionStateRef.current === TxStateType.Denied || transactionStateRef.current === TxStateType.Invalid) {
+      if (transactionStateRef.current === TxStateType.Invalid) {
+        setBagStatus(BagStatus.WARNING)
+      } else setBagStatus(BagStatus.CONFIRM_REVIEW)
+      setTransactionState(TxStateType.New)
+
+      setBagLocked(false)
+      setModalIsOpen(false)
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [setBagLocked, setBagStatus, setModalIsOpen, setTransactionState, transactionStateRef.current])
+}
--- a/src/nft/utils/bag.ts
+++ b/src/nft/utils/bag.ts
@ -0,0 +1,75 @@
+import { BagItem, BagItemStatus, BagStatus, RoutingItem, UpdatedGenieAsset } from 'nft/types'
+
+import { compareAssetsWithTransactionRoute } from './txRoute/combineItemsWithTxRoute'
+import { filterUpdatedAssetsByState } from './updatedAssets'
+
+export function getPurchasableAssets(itemsInBag: BagItem[]): UpdatedGenieAsset[] {
+  return itemsInBag.filter((item) => item.status !== BagItemStatus.UNAVAILABLE).map((item) => item.asset)
+}
+
+function createBagFromUpdatedAssets(
+  unavailable: UpdatedGenieAsset[],
+  priceChanged: UpdatedGenieAsset[],
+  unchanged: UpdatedGenieAsset[]
+): BagItem[] {
+  return [
+    ...unavailable.map((unavailableAsset) => ({
+      asset: unavailableAsset,
+      status: BagItemStatus.UNAVAILABLE,
+    })),
+    ...priceChanged.map((changedAsset) => ({
+      asset: changedAsset,
+      status: BagItemStatus.REVIEWING_PRICE_CHANGE,
+    })),
+    ...unchanged.map((unchangedAsset) => ({
+      asset: unchangedAsset,
+      status: BagItemStatus.REVIEWED,
+    })),
+  ]
+}
+
+function evaluateNextBagState(
+  hasAssets: boolean,
+  shouldReview: boolean,
+  hasAssetsInReview: boolean,
+  shouldRefetchCalldata: boolean
+): BagStatus {
+  if (!hasAssets) {
+    return BagStatus.ADDING_TO_BAG
+  }
+
+  if (shouldReview) {
+    if (hasAssetsInReview) {
+      return BagStatus.IN_REVIEW
+    }
+
+    return BagStatus.CONFIRM_REVIEW
+  }
+
+  if (shouldRefetchCalldata) {
+    return BagStatus.CONFIRM_QUOTE
+  }
+
+  return BagStatus.CONFIRMING_IN_WALLET
+}
+
+export function getNextBagState(
+  wishAssetsToBuy: UpdatedGenieAsset[],
+  route: RoutingItem[],
+  purchasingWithErc20: boolean
+): { newBagItems: BagItem[]; nextBagStatus: BagStatus } {
+  const { hasPriceAdjustment, updatedAssets } = compareAssetsWithTransactionRoute(wishAssetsToBuy, route)
+  const shouldRefetchCalldata = hasPriceAdjustment && purchasingWithErc20
+
+  const { unchanged, priceChanged, unavailable } = filterUpdatedAssetsByState(updatedAssets)
+
+  const hasAssets = updatedAssets.length > 0
+  const hasAssetsInReview = priceChanged.length > 0
+  const hasUnavailableAssets = unavailable.length > 0
+  const shouldReview = hasAssetsInReview || hasUnavailableAssets
+
+  const newBagItems = createBagFromUpdatedAssets(unavailable, priceChanged, unchanged)
+  const nextBagStatus = evaluateNextBagState(hasAssets, shouldReview, hasAssetsInReview, shouldRefetchCalldata)
+
+  return { newBagItems, nextBagStatus }
+}
--- a/src/nft/utils/txRoute/combineItemsWithTxRoute.ts
+++ b/src/nft/utils/txRoute/combineItemsWithTxRoute.ts
@ -74,7 +74,7 @@ const itemInRouteAndSamePool = (
  )
 }

-export const combineBuyItemsWithTxRoute = (
+export const compareAssetsWithTransactionRoute = (
  items: UpdatedGenieAsset[],
  txRoute?: RoutingItem[]
 ): { hasPriceAdjustment: boolean; updatedAssets: UpdatedGenieAsset[] } => {
--- a/src/nft/utils/updatedAssets.ts
+++ b/src/nft/utils/updatedAssets.ts
@ -20,3 +20,15 @@ export const getTotalNftValue = (nfts: UpdatedGenieAsset[]): BigNumber => {
    )
  )
 }
+
+export function filterUpdatedAssetsByState(assets: UpdatedGenieAsset[]): {
+  unchanged: UpdatedGenieAsset[]
+  priceChanged: UpdatedGenieAsset[]
+  unavailable: UpdatedGenieAsset[]
+} {
+  const unchanged = assets.filter((asset) => !asset.updatedPriceInfo && !asset.isUnavailable)
+  const priceChanged = assets.filter((asset) => asset.updatedPriceInfo).sort(sortUpdatedAssets)
+  const unavailable = assets.filter((asset) => asset.isUnavailable)
+
+  return { unchanged, priceChanged, unavailable }
+}