feat: [IXSPD1-2285] lock IXS page integrates with smart contract

src/constants/addresses.ts

@@ -2,6 +2,7 @@ import { FACTORY_ADDRESS } from '@ixswap1/v2-sdk'
 import { constructSameAddressMap } from '../utils/constructSameAddressMap'
 import { SupportedChainId } from './chains'
 import { isProd } from 'utils/isEnvMode'
+import { Address } from 'viem'
 
 type ContractAddressRecord = Record<number, string>
 
@@ -75,7 +76,7 @@ export const TGE_CHAINS_WITH_KYC = ENV_SUPPORTED_TGE_CHAINS || [
   SUPPORTED_TGE_CHAINS.BASE_SEPOLIA,
 ]
 // the rest are same as kovan for now
-export const IXS_ADDRESS: { [key: number]: string } = {
+export const IXS_ADDRESS: { [key: number]: Address } = {
   [1]: '0x73d7c860998CA3c01Ce8c808F5577d94d545d1b4',
   [4]: '0xA1997c88a60dCe7BF92A3644DA21e1FfC8F96dC2',
   [3]: '0xA1997c88a60dCe7BF92A3644DA21e1FfC8F96dC2',
@@ -223,5 +224,5 @@ export const LBP_FACTORY_ADDRESS = {
 } as Record<number, string>
 
 export const VOTING_ESCROW_ADDRESS = {
-  [84532]: '0x72Dc60450Daf5c72d2b6b9a52f4Db7321Ffdb7Ad', // base sepolia
+  [84532]: '0xc55d5Ed2f931dac22d5b578130Dd96f9CfAFaCB1', // base sepolia
 } as ContractAddressRecord

src/hooks/useContract.ts

@@ -36,6 +36,7 @@ import LAUNCHPAD_INVESTMENT_ABI from 'abis/launchpad-investment.json'
 import LBP_ABI from 'abis/LiquiidtyBoostrapPool.json'
 import LBP_FACTORY_ABI from 'abis/LiquidityBoostrapPoolFactory.json'
 import PAYOUT_AIRDROP_ABI from 'abis/payout-airdrop.json'
+import VOTING_ESCROW_ABI from 'abis/voting-escrow.json'
 import {
   ARGENT_WALLET_DETECTOR_ADDRESS,
   ENS_REGISTRAR_ADDRESSES,
@@ -49,6 +50,7 @@ import {
   SWAP_ROUTER_ADDRESS,
   IXSALE_ADDRESS,
   PAYOUT_AIRDROP_PROXY_ADDRESS,
+  VOTING_ESCROW_ADDRESS,
 } from 'constants/addresses'
 import { useMemo } from 'react'
 import { getContract } from 'utils'
@@ -150,17 +152,17 @@ export function useWETHContract(withSignerIfPossible?: boolean) {
 }
 
 export function useArgentWalletDetectorContract() {
-   // @ts-ignore
+  // @ts-ignore
   return useContract<ArgentWalletDetector>(ARGENT_WALLET_DETECTOR_ADDRESS, ARGENT_WALLET_DETECTOR_ABI, false)
 }
 
 export function useENSRegistrarContract(withSignerIfPossible?: boolean) {
-   // @ts-ignore
+  // @ts-ignore
   return useContract<EnsRegistrar>(ENS_REGISTRAR_ADDRESSES, ENS_ABI, withSignerIfPossible)
 }
 
 export function useENSResolverContract(address: string | undefined, withSignerIfPossible?: boolean) {
-   // @ts-ignore
+  // @ts-ignore
   return useContract<EnsPublicResolver>(address, ENS_PUBLIC_RESOLVER_ABI, withSignerIfPossible)
 }
 
@@ -183,7 +185,7 @@ export function useLiquidityRouterContract(): Contract | null {
   return useContract(LIQUIDITY_ROUTER_ADDRESS, IIxsV2LiquidityRouterABI, true)
 }
 export function useMulticall2Contract() {
-   // @ts-ignore
+  // @ts-ignore
   return useContract<Multicall2>(MULTICALL2_ADDRESSES, MULTICALL_ABI, false) as Multicall2
 }
 export function useBurnWSecContract(address: string | undefined) {
@@ -218,3 +220,7 @@ export function useLBPContract(contractAddress: string) {
 export function useLBPFactory(contractAddress: string) {
   return useContract(contractAddress, LBP_FACTORY_ABI, true)
 }
+
+export function useVotingEscrowContract() {
+  return useContract(VOTING_ESCROW_ADDRESS, VOTING_ESCROW_ABI, true)
+}

src/pages/DexV2/Lock/LockProvider.tsx

@@ -1,16 +1,68 @@
-import { Currency } from "@ixswap1/sdk-core"
-import { createContext, PropsWithChildren, useContext, useState } from "react"
+import { createContext, PropsWithChildren, useCallback, useContext, useEffect, useMemo, useState } from "react"
+import { utils } from 'ethers'
+import { useVotingEscrowContract } from "hooks/useContract"
+import useIXSCurrency from "hooks/useIXSCurrency"
+import { useTransactionAdder } from "state/transactions/hooks"
+import { safeParseUnits } from "utils/formatCurrencyAmount"
+import { WEEK } from "./constants"
+import { ApprovalState, useAllowance } from "hooks/useApproveCallback"
+import { useWeb3React } from "hooks/useWeb3React"
+import { IXS_ADDRESS, VOTING_ESCROW_ADDRESS } from 'constants/addresses'
 
 export type UseLockResult = ReturnType<typeof _useLock>
 export const LockContext = createContext<UseLockResult | null>(null)
 
 export function _useLock() {
   const [userInput, setUserInput] = useState('')
   const [duration, setDuration] = useState(604800) // 7 days
+  const [locking, setLocking] = useState(false)
+  const [locked, setLocked] = useState(false)
+
+  const votingEscrowContract = useVotingEscrowContract()
+  const addTransaction = useTransactionAdder()
+  const currency = useIXSCurrency()
+
+  const handleLock = useCallback(async () => {
+    setLocking(true)
+    try {
+      const tx = await votingEscrowContract?.createLock(
+        safeParseUnits(+userInput, currency?.decimals),
+        duration,
+      )
+      await tx.wait()
+
+      if (!tx.hash) return
+      setLocked(true)
+      addTransaction(tx, {
+        summary: `Lock ${userInput} IXS in ${ Math.round(duration / WEEK) } weeks`,
+      })
+    } finally {
+      setLocking(false)
+    }
+  }, [userInput, duration, votingEscrowContract, addTransaction, currency])
+
+  const { chainId } = useWeb3React()
+  const [approvalState, approve] = useAllowance(
+    IXS_ADDRESS[chainId],
+    utils.parseUnits(userInput || '0', currency?.decimals),
+    VOTING_ESCROW_ADDRESS[chainId]
+  )
+
+  const step = useMemo(() => {
+    if (locked) return 3
+    if (locking) return 2
+    if (approvalState === ApprovalState.PENDING || approvalState === ApprovalState.APPROVED) return 1
+    return 0
+  }, [approvalState, locking, locked])
 
   return {
     userInput, setUserInput,
     duration, setDuration,
+    locking,
+    locked,
+    handleLock,
+    step,
+    approvalState, approve,
   }
 }
 

src/pages/DexV2/Lock/components/CurrencyInput.tsx

@@ -6,14 +6,16 @@ import { Input as NumericalInput } from 'components/NumericalInput'
 import { useActiveWeb3React } from 'hooks/web3'
 import { Trans } from '@lingui/macro'
 import useTheme from 'hooks/useTheme'
-import { formatCurrencyAmount } from 'utils/formatCurrencyAmount'
 import { formatCurrencySymbol } from 'utils/formatCurrencySymbol'
-import { useCurrencyBalance } from 'state/wallet/hooks'
+import { useCurrencyBalanceV2 } from 'state/wallet/hooks'
 import { TYPE } from 'theme'
 import { AssetLogo } from 'components/CurrencyInputPanel/AssetLogo'
 import { FiatValue } from 'components/CurrencyInputPanel/FiatValue'
 import { Flex } from 'rebass'
 import { Button } from '@mui/material'
+import { IXS_ADDRESS } from 'constants/addresses'
+import { DEFAULT_CHAIN_ID } from 'config'
+import { formatAmount } from 'utils/formatCurrencyAmount'
 
 interface CurrencyInputPanelProps {
   value: string
@@ -33,8 +35,14 @@ export default function CurrencyInputPanel({
   priceImpact,
   ...rest
 }: CurrencyInputPanelProps) {
-  const { account } = useActiveWeb3React()
-  const selectedCurrencyBalance = useCurrencyBalance(account ?? undefined, currency ?? undefined)
+  const { account, chainId } = useActiveWeb3React()
+  const currencyBalance = useCurrencyBalanceV2({
+    account,
+    chainId,
+    currency: IXS_ADDRESS[chainId ?? DEFAULT_CHAIN_ID],
+  })
+  const selectedCurrencyBalance = currencyBalance?.formatted
+
   const theme = useTheme()
   const decimals = currency?.tokenInfo?.decimals || 18
   const onChangeInput = (val: string) => {
@@ -93,7 +101,7 @@ export default function CurrencyInputPanel({
                     <Trans>
                       Balance:
                       <span style={{ color: '#292933', fontWeight: 600, marginLeft: 4 }}>
-                        {formatCurrencyAmount(selectedCurrencyBalance, decimals)} {currency.symbol}
+                        {formatAmount(+selectedCurrencyBalance)}
                       </span>
                     </Trans>
                   ) : null}

src/pages/DexV2/Lock/components/DurationSlider.tsx

@@ -1,13 +1,14 @@
 import { Slider } from "@mui/material"
-import { Box, Button, Flex } from "rebass"
+import { Box, Flex } from "rebass"
 import styled from "styled-components"
 import { TYPE } from "theme"
 import { useLock } from "../LockProvider"
-
-const WEEK = 604800
+import { FOUR_YEARS_IN_SECONDS, WEEK } from "../constants"
+import { formatAmount } from "utils/formatCurrencyAmount"
 
 const DurationSlider: React.FC = () => {
   const {
+    userInput,
     duration,
     setDuration,
   } = useLock()
@@ -34,12 +35,14 @@ const DurationSlider: React.FC = () => {
   }, ]
 
   const weekToShow = Math.round(duration / WEEK)
+  const durationLabel = `${weekToShow} ${weekToShow > 1 ? 'weeks' : 'week'}`
+  const votingPower = +userInput * duration / FOUR_YEARS_IN_SECONDS
 
   return (
     <Box>
       <Flex justifyContent="space-between" alignItems="center" mb={2}>
         <TYPE.subHeader1 color='blue5'>Lock Time</TYPE.subHeader1>
-        <TYPE.label>{weekToShow} {weekToShow > 1 ? 'weeks' : 'week'}</TYPE.label> 
+        <TYPE.label>{durationLabel}</TYPE.label> 
       </Flex>
 
       <StyledSlider
@@ -64,6 +67,12 @@ const DurationSlider: React.FC = () => {
           </TYPE.subHeader1>
         ))}
       </Flex>
+
+      <Box mt={4}>
+        <TYPE.body3>
+          Locking for <strong>{durationLabel}</strong> for {formatAmount(votingPower, 2)} veIXS voting power.
+        </TYPE.body3>
+      </Box>
     </Box>
   )
 }