utils#getFarmLPToken TypeScript Examples

// gets the dual rewards staking info from the network for the active chain id
export function useDualStakingInfo(
  pairToFilterBy?: Pair | null,
  startIndex?: number,
  endIndex?: number,
  filter?: { search: string; isStaked: boolean },
): DualStakingInfo[] {
  const { chainId, account } = useActiveWeb3React();

  const info = useMemo(
    () =>
      chainId
        ? returnDualStakingInfo()
            [chainId]?.slice(startIndex, endIndex)
            ?.filter((stakingRewardInfo) =>
              pairToFilterBy === undefined || pairToFilterBy === null
                ? getSearchFiltered(
                    stakingRewardInfo,
                    filter ? filter.search : '',
                  )
                : pairToFilterBy.involvesToken(stakingRewardInfo.tokens[0]) &&
                  pairToFilterBy.involvesToken(stakingRewardInfo.tokens[1]),
            ) ?? []
        : [],
    [chainId, pairToFilterBy, startIndex, endIndex, filter],
  );

  const uni = chainId ? GlobalValue.tokens.UNI[chainId] : undefined;

  const rewardsAddresses = useMemo(
    () => info.map(({ stakingRewardAddress }) => stakingRewardAddress),
    [info],
  );
  // const pairAddresses = useMemo(() => info.map(({ pair }) => pair), [info]);

  // useEffect(() => {
  //   getDualBulkPairData(pairAddresses);
  // }, [pairAddresses]);

  const accountArg = useMemo(() => [account ?? undefined], [account]);

  // get all the info from the staking rewards contracts
  const balances = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_DUAL_REWARDS_INTERFACE,
    'balanceOf',
    accountArg,
  );
  const earnedAAmounts = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_DUAL_REWARDS_INTERFACE,
    'earnedA',
    accountArg,
  );
  const earnedBAmounts = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_DUAL_REWARDS_INTERFACE,
    'earnedB',
    accountArg,
  );
  const totalSupplies = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_DUAL_REWARDS_INTERFACE,
    'totalSupply',
  );
  const rewardRatesA = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_DUAL_REWARDS_INTERFACE,
    'rewardRateA',
    undefined,
    NEVER_RELOAD,
  );

  const rewardRatesB = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_DUAL_REWARDS_INTERFACE,
    'rewardRateB',
    undefined,
    NEVER_RELOAD,
  );

  const baseTokens = info.map((item) => {
    const unwrappedCurrency = unwrappedToken(item.baseToken);
    const empty = unwrappedToken(returnTokenFromKey('EMPTY'));
    return unwrappedCurrency === empty ? item.tokens[0] : item.baseToken;
  });

  const usdPrices = useUSDCPrices(baseTokens);
  const totalSupplys = useTotalSupplys(
    info.map((item) => getFarmLPToken(item)),
  );
  const stakingPairs = usePairs(info.map((item) => item.tokens));
  const rewardTokenAPrices = useUSDCPricesToken(
    info.map((item) => item.rewardTokenA),
  );
  const rewardTokenBPrices = useUSDCPricesToken(
    info.map((item) => item.rewardTokenB),
  );

  return useMemo(() => {
    if (!chainId || !uni) return [];

    return rewardsAddresses.reduce<DualStakingInfo[]>(
      (memo, rewardsAddress, index) => {
        // these two are dependent on account
        const balanceState = balances[index];
        const earnedAAmountState = earnedAAmounts[index];
        const earnedBAmountState = earnedBAmounts[index];

        // these get fetched regardless of account
        const totalSupplyState = totalSupplies[index];
        const rewardRateAState = rewardRatesA[index];
        const rewardRateBState = rewardRatesB[index];
        const stakingInfo = info[index];
        const rewardTokenAPrice = rewardTokenAPrices[index];
        const rewardTokenBPrice = rewardTokenBPrices[index];

        if (
          // these may be undefined if not logged in
          !balanceState?.loading &&
          !earnedAAmountState?.loading &&
          !earnedBAmountState?.loading &&
          // always need these
          totalSupplyState &&
          !totalSupplyState.loading &&
          rewardRateAState &&
          !rewardRateAState.loading &&
          rewardRateBState &&
          !rewardRateBState.loading
        ) {
          const rateA = web3.utils.toWei(stakingInfo.rateA.toString());
          const rateB = web3.utils.toWei(stakingInfo.rateB.toString());
          const stakedAmount = initTokenAmountFromCallResult(
            getFarmLPToken(stakingInfo),
            balanceState,
          );
          const totalStakedAmount = initTokenAmountFromCallResult(
            getFarmLPToken(stakingInfo),
            totalSupplyState,
          );
          const totalRewardRateA = new TokenAmount(uni, JSBI.BigInt(rateA));
          const totalRewardRateB = new TokenAmount(uni, JSBI.BigInt(rateB));
          //const pair = info[index].pair.toLowerCase();
          //const fees = (pairData && pairData[pair] ? pairData[pair].oneDayVolumeUSD * 0.0025: 0);
          const totalRewardRateA01 = initTokenAmountFromCallResult(
            uni,
            rewardRateAState,
          );
          const totalRewardRateB01 = initTokenAmountFromCallResult(
            uni,
            rewardRateBState,
          );

          const getHypotheticalRewardRate = (
            stakedAmount?: TokenAmount,
            totalStakedAmount?: TokenAmount,
            totalRewardRate?: TokenAmount,
          ): TokenAmount | undefined => {
            if (!stakedAmount || !totalStakedAmount || !totalRewardRate) return;
            return new TokenAmount(
              uni,
              JSBI.greaterThan(totalStakedAmount.raw, JSBI.BigInt(0))
                ? JSBI.divide(
                    JSBI.multiply(totalRewardRate.raw, stakedAmount.raw),
                    totalStakedAmount.raw,
                  )
                : JSBI.BigInt(0),
            );
          };

          const individualRewardRateA = getHypotheticalRewardRate(
            stakedAmount,
            totalStakedAmount,
            totalRewardRateA01,
          );
          const individualRewardRateB = getHypotheticalRewardRate(
            stakedAmount,
            totalStakedAmount,
            totalRewardRateB01,
          );

          const { oneDayFee, accountFee } = getStakingFees(
            stakingInfo,
            balanceState,
            totalSupplyState,
          );

          let valueOfTotalStakedAmountInBaseToken: TokenAmount | undefined;

          const [, stakingTokenPair] = stakingPairs[index];
          const totalSupply = totalSupplys[index];
          const usdPrice = usdPrices[index];

          if (
            totalSupply &&
            stakingTokenPair &&
            baseTokens[index] &&
            totalStakedAmount
          ) {
            // take the total amount of LP tokens staked, multiply by ETH value of all LP tokens, divide by all LP tokens
            valueOfTotalStakedAmountInBaseToken = new TokenAmount(
              baseTokens[index],
              JSBI.divide(
                JSBI.multiply(
                  JSBI.multiply(
                    totalStakedAmount.raw,
                    stakingTokenPair.reserveOf(baseTokens[index]).raw,
                  ),
                  JSBI.BigInt(2), // this is b/c the value of LP shares are ~double the value of the WETH they entitle owner to
                ),
                totalSupply.raw,
              ),
            );
          }

          const valueOfTotalStakedAmountInUSDC =
            valueOfTotalStakedAmountInBaseToken &&
            usdPrice?.quote(valueOfTotalStakedAmountInBaseToken);

          const tvl = valueOfTotalStakedAmountInUSDC
            ? valueOfTotalStakedAmountInUSDC.toExact()
            : valueOfTotalStakedAmountInBaseToken?.toExact();

          const perMonthReturnInRewards =
            ((stakingInfo.rateA * rewardTokenAPrice +
              stakingInfo.rateB * rewardTokenBPrice) *
              (getDaysCurrentYear() / 12)) /
            Number(valueOfTotalStakedAmountInUSDC?.toExact());

          memo.push({
            stakingRewardAddress: rewardsAddress,
            tokens: stakingInfo.tokens,
            ended: stakingInfo.ended,
            name: stakingInfo.name,
            lp: stakingInfo.lp,
            earnedAmountA: initTokenAmountFromCallResult(
              uni,
              earnedAAmountState,
            ),
            earnedAmountB: initTokenAmountFromCallResult(
              uni,
              earnedBAmountState,
            ),
            rewardRateA: individualRewardRateA,
            rewardRateB: individualRewardRateB,
            totalRewardRateA: totalRewardRateA,
            totalRewardRateB: totalRewardRateB,
            stakedAmount: stakedAmount,
            totalStakedAmount: totalStakedAmount,
            getHypotheticalRewardRate,
            baseToken: stakingInfo.baseToken,
            pair: stakingInfo.pair,
            rateA: stakingInfo.rateA,
            rateB: stakingInfo.rateB,
            rewardTokenA: stakingInfo.rewardTokenA,
            rewardTokenB: stakingInfo.rewardTokenB,
            rewardTokenBBase: stakingInfo.rewardTokenBBase,
            rewardTokenAPrice,
            rewardTokenBPrice,
            tvl,
            perMonthReturnInRewards,
            totalSupply,
            usdPrice,
            stakingTokenPair,
            oneDayFee,
            accountFee,
          });
        }
        return memo;
      },
      [],
    );
  }, [
    balances,
    chainId,
    earnedAAmounts,
    earnedBAmounts,
    info,
    rewardsAddresses,
    totalSupplies,
    uni,
    rewardRatesA,
    rewardRatesB,
    baseTokens,
    totalSupplys,
    usdPrices,
    stakingPairs,
    rewardTokenAPrices,
    rewardTokenBPrices,
  ]).filter((stakingInfo) =>
    filter && filter.isStaked
      ? stakingInfo.stakedAmount && stakingInfo.stakedAmount.greaterThan('0')
      : true,
  );
}

// gets the staking info from the network for the active chain id
export function useStakingInfo(
  pairToFilterBy?: Pair | null,
  startIndex?: number,
  endIndex?: number,
  filter?: { search: string; isStaked: boolean },
): StakingInfo[] {
  const { chainId, account } = useActiveWeb3React();

  const info = useMemo(
    () =>
      chainId
        ? returnStakingInfo()
            [chainId]?.slice(startIndex, endIndex)
            ?.filter((stakingRewardInfo) =>
              pairToFilterBy === undefined || pairToFilterBy === null
                ? getSearchFiltered(
                    stakingRewardInfo,
                    filter ? filter.search : '',
                  )
                : pairToFilterBy.involvesToken(stakingRewardInfo.tokens[0]) &&
                  pairToFilterBy.involvesToken(stakingRewardInfo.tokens[1]),
            ) ?? []
        : [],
    [chainId, pairToFilterBy, startIndex, endIndex, filter],
  );

  const uni = chainId ? GlobalValue.tokens.UNI[chainId] : undefined;

  const rewardsAddresses = useMemo(
    () => info.map(({ stakingRewardAddress }) => stakingRewardAddress),
    [info],
  );
  // const pairAddresses = useMemo(() => info.map(({ pair }) => pair), [info]);

  // useEffect(() => {
  //   getBulkPairData(allPairAddress);
  // }, [allPairAddress]);

  const accountArg = useMemo(() => [account ?? undefined], [account]);

  // get all the info from the staking rewards contracts
  const balances = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'balanceOf',
    accountArg,
  );
  const earnedAmounts = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'earned',
    accountArg,
  );
  const totalSupplies = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'totalSupply',
  );
  const rewardRates = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'rewardRate',
    undefined,
    NEVER_RELOAD,
  );

  const baseTokens = info.map((item) => {
    const unwrappedCurrency = unwrappedToken(item.baseToken);
    const empty = unwrappedToken(returnTokenFromKey('EMPTY'));
    return unwrappedCurrency === empty ? item.tokens[0] : item.baseToken;
  });
  const rewardTokens = info.map((item) => item.rewardToken);

  const usdPrices = useUSDCPrices(baseTokens);
  const usdPricesRewardTokens = useUSDCPricesToken(rewardTokens);
  const totalSupplys = useTotalSupplys(
    info.map((item) => {
      const lp = item.lp;
      const dummyPair = new Pair(
        new TokenAmount(item.tokens[0], '0'),
        new TokenAmount(item.tokens[1], '0'),
      );
      return lp && lp !== ''
        ? new Token(137, lp, 18, 'SLP', 'Staked LP')
        : dummyPair.liquidityToken;
    }),
  );
  const stakingPairs = usePairs(info.map((item) => item.tokens));

  return useMemo(() => {
    if (!chainId || !uni) return [];

    return rewardsAddresses.reduce<StakingInfo[]>(
      (memo, rewardsAddress, index) => {
        // these two are dependent on account
        const balanceState = balances[index];
        const earnedAmountState = earnedAmounts[index];

        // these get fetched regardless of account
        const totalSupplyState = totalSupplies[index];
        const rewardRateState = rewardRates[index];
        const stakingInfo = info[index];
        const rewardTokenPrice = usdPricesRewardTokens[index];

        if (
          // these may be undefined if not logged in
          !balanceState?.loading &&
          !earnedAmountState?.loading &&
          // always need these
          totalSupplyState &&
          !totalSupplyState.loading &&
          rewardRateState &&
          !rewardRateState.loading
        ) {
          // get the LP token
          const tokens = stakingInfo.tokens;
          const dummyPair = new Pair(
            new TokenAmount(tokens[0], '0'),
            new TokenAmount(tokens[1], '0'),
          );

          // check for account, if no account set to 0
          const lp = stakingInfo.lp;
          const rate = web3.utils.toWei(stakingInfo.rate.toString());
          const stakedAmount = initTokenAmountFromCallResult(
            getFarmLPToken(stakingInfo),
            balanceState,
          );
          const totalStakedAmount = initTokenAmountFromCallResult(
            getFarmLPToken(stakingInfo),
            totalSupplyState,
          );
          const totalRewardRate = new TokenAmount(uni, JSBI.BigInt(rate));
          //const pair = info[index].pair.toLowerCase();
          //const fees = (pairData && pairData[pair] ? pairData[pair].oneDayVolumeUSD * 0.0025: 0);
          const totalRewardRate01 = initTokenAmountFromCallResult(
            uni,
            rewardRateState,
          );
          const getHypotheticalRewardRate = (
            stakedAmount?: TokenAmount,
            totalStakedAmount?: TokenAmount,
            totalRewardRate?: TokenAmount,
          ): TokenAmount | undefined => {
            if (!stakedAmount || !totalStakedAmount || !totalRewardRate) return;
            return new TokenAmount(
              uni,
              JSBI.greaterThan(totalStakedAmount.raw, JSBI.BigInt(0))
                ? JSBI.divide(
                    JSBI.multiply(totalRewardRate.raw, stakedAmount.raw),
                    totalStakedAmount.raw,
                  )
                : JSBI.BigInt(0),
            );
          };

          const individualRewardRate = getHypotheticalRewardRate(
            stakedAmount,
            totalStakedAmount,
            totalRewardRate01,
          );

          const { oneYearFeeAPY, oneDayFee, accountFee } = getStakingFees(
            stakingInfo,
            balanceState,
            totalSupplyState,
          );

          let valueOfTotalStakedAmountInBaseToken: TokenAmount | undefined;

          const [, stakingTokenPair] = stakingPairs[index];
          const totalSupply = totalSupplys[index];
          const usdPrice = usdPrices[index];

          if (
            totalSupply &&
            stakingTokenPair &&
            baseTokens[index] &&
            totalStakedAmount
          ) {
            // take the total amount of LP tokens staked, multiply by ETH value of all LP tokens, divide by all LP tokens
            valueOfTotalStakedAmountInBaseToken = new TokenAmount(
              baseTokens[index],
              JSBI.divide(
                JSBI.multiply(
                  JSBI.multiply(
                    totalStakedAmount.raw,
                    stakingTokenPair.reserveOf(baseTokens[index]).raw,
                  ),
                  JSBI.BigInt(2), // this is b/c the value of LP shares are ~double the value of the WETH they entitle owner to
                ),
                totalSupply.raw,
              ),
            );
          }

          const valueOfTotalStakedAmountInUSDC =
            valueOfTotalStakedAmountInBaseToken &&
            usdPrice?.quote(valueOfTotalStakedAmountInBaseToken);

          const tvl = valueOfTotalStakedAmountInUSDC
            ? valueOfTotalStakedAmountInUSDC.toExact()
            : valueOfTotalStakedAmountInBaseToken?.toExact();

          const perMonthReturnInRewards =
            (Number(stakingInfo.rate) *
              rewardTokenPrice *
              (getDaysCurrentYear() / 12)) /
            Number(valueOfTotalStakedAmountInUSDC?.toExact());

          memo.push({
            stakingRewardAddress: rewardsAddress,
            tokens: stakingInfo.tokens,
            ended: stakingInfo.ended,
            name: stakingInfo.name,
            lp: stakingInfo.lp,
            rewardToken: stakingInfo.rewardToken,
            rewardTokenPrice,
            earnedAmount: initTokenAmountFromCallResult(uni, earnedAmountState),
            rewardRate: individualRewardRate,
            totalRewardRate: totalRewardRate,
            stakedAmount: stakedAmount,
            totalStakedAmount: totalStakedAmount,
            getHypotheticalRewardRate,
            baseToken: stakingInfo.baseToken,
            pair: stakingInfo.pair,
            rate: stakingInfo.rate,
            oneYearFeeAPY: oneYearFeeAPY,
            oneDayFee,
            accountFee,
            tvl,
            perMonthReturnInRewards,
            valueOfTotalStakedAmountInBaseToken,
            usdPrice,
            stakingTokenPair,
            totalSupply,
          });
        }
        return memo;
      },
      [],
    );
  }, [
    balances,
    chainId,
    earnedAmounts,
    info,
    rewardsAddresses,
    totalSupplies,
    uni,
    rewardRates,
    usdPricesRewardTokens,
    baseTokens,
    totalSupplys,
    usdPrices,
    stakingPairs,
  ]).filter((stakingInfo) =>
    filter && filter.isStaked
      ? stakingInfo.stakedAmount && stakingInfo.stakedAmount.greaterThan('0')
      : true,
  );
}

export function useOldStakingInfo(
  pairToFilterBy?: Pair | null,
  startIndex?: number,
  endIndex?: number,
  filter?: { search: string; isStaked: boolean },
): StakingInfo[] {
  const { chainId, account } = useActiveWeb3React();

  const info = useMemo(
    () =>
      chainId
        ? returnStakingInfo('old')
            [chainId]?.slice(startIndex, endIndex)
            ?.filter((stakingRewardInfo) =>
              pairToFilterBy === undefined || pairToFilterBy === null
                ? getSearchFiltered(
                    stakingRewardInfo,
                    filter ? filter.search : '',
                  )
                : pairToFilterBy.involvesToken(stakingRewardInfo.tokens[0]) &&
                  pairToFilterBy.involvesToken(stakingRewardInfo.tokens[1]),
            ) ?? []
        : [],
    [chainId, pairToFilterBy, startIndex, endIndex, filter],
  );

  const uni = chainId ? GlobalValue.tokens.UNI[chainId] : undefined;

  const rewardsAddresses = useMemo(
    () => info.map(({ stakingRewardAddress }) => stakingRewardAddress),
    [info],
  );

  const accountArg = useMemo(() => [account ?? undefined], [account]);

  // get all the info from the staking rewards contracts
  const balances = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'balanceOf',
    accountArg,
  );
  const earnedAmounts = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'earned',
    accountArg,
  );
  const totalSupplies = useMultipleContractSingleData(
    rewardsAddresses,
    STAKING_REWARDS_INTERFACE,
    'totalSupply',
  );

  const stakingPairs = usePairs(info.map((item) => item.tokens));

  return useMemo(() => {
    if (!chainId || !uni) return [];

    return rewardsAddresses.reduce<StakingInfo[]>(
      (memo, rewardsAddress, index) => {
        // these two are dependent on account
        const balanceState = balances[index];
        const earnedAmountState = earnedAmounts[index];

        // these get fetched regardless of account
        const totalSupplyState = totalSupplies[index];

        const stakingInfo = info[index];

        if (
          // these may be undefined if not logged in
          !balanceState?.loading &&
          !earnedAmountState?.loading &&
          // always need these
          totalSupplyState &&
          !totalSupplyState.loading
        ) {
          const stakedAmount = initTokenAmountFromCallResult(
            getFarmLPToken(stakingInfo),
            balanceState,
          );
          const totalStakedAmount = initTokenAmountFromCallResult(
            getFarmLPToken(stakingInfo),
            totalSupplyState,
          );
          const totalRewardRate = new TokenAmount(uni, JSBI.BigInt(0));

          const getHypotheticalRewardRate = (
            stakedAmount?: TokenAmount,
            totalStakedAmount?: TokenAmount,
            totalRewardRate?: TokenAmount,
          ): TokenAmount | undefined => {
            if (!stakedAmount || !totalStakedAmount || !totalRewardRate) return;
            return new TokenAmount(
              uni,
              JSBI.greaterThan(totalStakedAmount.raw, JSBI.BigInt(0))
                ? JSBI.divide(
                    JSBI.multiply(totalRewardRate.raw, stakedAmount.raw),
                    totalStakedAmount.raw,
                  )
                : JSBI.BigInt(0),
            );
          };

          const individualRewardRate = getHypotheticalRewardRate(
            stakedAmount,
            totalStakedAmount,
            totalRewardRate,
          );

          const [, stakingTokenPair] = stakingPairs[index];

          memo.push({
            stakingRewardAddress: rewardsAddress,
            tokens: stakingInfo.tokens,
            ended: stakingInfo.ended,
            name: stakingInfo.name,
            lp: stakingInfo.lp,
            rewardToken: stakingInfo.rewardToken,
            rewardTokenPrice: 0,
            earnedAmount: initTokenAmountFromCallResult(uni, earnedAmountState),
            rewardRate: individualRewardRate,
            totalRewardRate: totalRewardRate,
            stakedAmount: stakedAmount,
            totalStakedAmount: totalStakedAmount,
            baseToken: stakingInfo.baseToken,
            getHypotheticalRewardRate,
            pair: stakingInfo.pair,
            rate: stakingInfo.rate,
            oneYearFeeAPY: 0,
            oneDayFee: 0,
            accountFee: 0,
            stakingTokenPair,
          });
        }
        return memo;
      },
      [],
    );
  }, [
    balances,
    chainId,
    earnedAmounts,
    info,
    rewardsAddresses,
    totalSupplies,
    uni,
    stakingPairs,
  ]).filter((stakingInfo) =>
    filter && filter.isStaked
      ? stakingInfo.stakedAmount && stakingInfo.stakedAmount.greaterThan('0')
      : true,
  );
}