09c36f2c87
resolves #42 Co-authored-by: johba <johba@harb.eth> Reviewed-on: https://codeberg.org/johba/harb/pulls/49
31 lines
909 B
TypeScript
31 lines
909 B
TypeScript
const SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
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export function calculateSnatchShortfall(
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outstandingStake: bigint,
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desiredStakeShares: bigint,
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stakeTotalSupply: bigint,
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capNumerator: bigint = 2n,
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capDenominator: bigint = 10n
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): bigint {
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if (capDenominator === 0n) {
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throw new Error('capDenominator must be greater than zero');
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}
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const cap = (stakeTotalSupply * capNumerator) / capDenominator;
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const required = outstandingStake + desiredStakeShares;
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const delta = required - cap;
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return delta > 0n ? delta : 0n;
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}
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export function isPositionDelinquent(
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lastTaxTimestamp: number,
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taxRate: number,
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referenceTimestamp: number = Math.floor(Date.now() / 1000),
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secondsInYear: number = SECONDS_IN_YEAR
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): boolean {
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const rate = Number(taxRate);
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if (rate <= 0) return false;
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const allowance = secondsInYear / rate;
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return referenceTimestamp - lastTaxTimestamp > allowance;
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}
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