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crispheaney
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Feb 15, 2022
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| import { BN, ClearingHouseUser, FeeStructure, ZERO } from "@drift-labs/sdk"; | |||
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why do these need to be imported from @drift-labs/sdk? I think they should be imported from same package.
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| Object.keys(feeStructure.discountTokenTiers).forEach(tier => { | ||
| const possibleDiscount = tryToCalculateTokenDiscountForTier(fee, feeStructure.discountTokenTiers[tier], discountToken); | ||
| if (possibleDiscount > discount) { |
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i think this needs to be gt instead of > since it is a BN
| refereeDiscount: BN | ||
| } | ||
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| export function calculateFeeForMarketOrder(quoteAssetAmount: BN, feeStructure: FeeStructure, discountToken?: AccountInfo, referrer?: ClearingHouseUser ) : MarketOrderFee { |
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instead of passing in ClearingHouseUser as referrer, might just be nice to pass in a boolean so you dont need a whole ClearingHouseUser object
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| // https://github.com/indutny/bn.js/pull/277 | ||
| // https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method | ||
| function sqrt (input: BN) { |
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we have a similar method here that you can use: https://github.com/drift-labs/protocol-v1/blob/master/sdk/src/math/utils.ts#L3
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Port of the fees.rs