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Merged
asalef10 merged 4 commits into from
Apr 20, 2025
Merged

calculate APR #7

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e4f19a1
calculate APR
asalef10 Apr 20, 2025
61d9cb3
lint
asalef10 Apr 20, 2025
be6b396
remove dependency
asalef10 Apr 20, 2025
8a62d69
lint
asalef10 Apr 20, 2025
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5 changes: 2 additions & 3 deletions src/pages/stakingPage/components/StakingCard.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -87,10 +87,9 @@ export const StakingCard: React.FC<StakingCardProps> = ({
}, [address, tokenAddress]);

const fetchAPR = useCallback(async () => {
if (!address) return;
const calculatedAPR = await calculateAPR(address);
const calculatedAPR = await calculateAPR();
setApr(calculatedAPR);
}, [address]);
}, []);

useEffect(() => {
void fetchBalance();
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40 changes: 21 additions & 19 deletions src/web3Config/staking/hooks.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -246,31 +246,33 @@ export const getTotalStaked = async (userAddress: string) => {
}
};
//Staking APR Formula = (ETH rewards + esGS emissions annualized) / (Total GS + esGS staked) * 100
export const calculateAPR = async (userAddress: string) => {
// Get ETH reward rate
const ethRewardRate = await getRewardRate();

const esGrixRewardRate = await getTokenPerInterval();
export const calculateAPR = async () => {
// Get total staked amount using totalSupply from the reward tracker
const totalStaked = await readContract(wagmiConfig, {
abi: rewardTrackerAbi,
address: normalizeAddress(stakingContracts.rewardTracker.address),
functionName: 'totalSupply',
args: [],
});

const totalStaked = await getTotalStaked(userAddress);
if (totalStaked === 0n) {
return 0;
}
if (totalStaked === 0n) return 0;

const SECONDS_PER_YEAR = 365n * 24n * 60n * 60n;
// Get ETH reward rate from rewardDistributor
const ethRewardRate = await getTokenPerInterval();

// Calculate annualized rewards for both ETH and esGS
const ethRewardsPerYear = ethRewardRate * SECONDS_PER_YEAR;
const esGrixRewardsPerYear = esGrixRewardRate * SECONDS_PER_YEAR;
// Get esGrix emission rate (assuming it's from the reward distributor as well)
const esGrixRewardRate = await getTokenPerInterval();

// Calculate total rewards (ETH + esGS)
const totalRewardsPerYear = ethRewardsPerYear + esGrixRewardsPerYear;
// Calculate annual rewards (seconds in a year * tokens per interval)
const SECONDS_PER_YEAR = 365n * 24n * 60n * 60n;
const annualEthRewards = ethRewardRate * SECONDS_PER_YEAR;
const annualEsGrixRewards = esGrixRewardRate * SECONDS_PER_YEAR;
const totalAnnualRewards = annualEthRewards + annualEsGrixRewards;

// Calculate APR including both reward types
const aprBips = (totalRewardsPerYear * 10000n) / totalStaked;
const aprPercentage = Number(aprBips) / 100;
// Calculate APR: (totalAnnualRewards / totalStaked) * 100
const apr = (totalAnnualRewards * 100n) / (totalStaked as bigint);

return aprPercentage;
return Number(apr);
};
// Add vesting allowance check
export const checkVestingAllowance = async (owner: string, token: string) => {
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