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mango-v4
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apply loan origination fee buffer 

Signed-off-by: microwavedcola1 <microwavedcola@gmail.com>
This commit is contained in:
microwavedcola1 2022-08-11 17:59:49 +02:00
parent 185b077285
commit 5402012064
2 changed files with 12 additions and 4 deletions
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9
ts/client/src/accounts/healthCache.ts
View File

@ -5,6 +5,7 @@ import {
I80F48, I80F48,
I80F48Dto, I80F48Dto,
MAX_I80F48, MAX_I80F48,
ONE_I80F48,
ZERO_I80F48, ZERO_I80F48,
} from './I80F48'; } from './I80F48';
import { HealthType } from './mangoAccount'; import { HealthType } from './mangoAccount';
@ -312,7 +313,13 @@ export class HealthCache {
); );
} }
return amount.div(source.oraclePrice); return amount
.div(source.oraclePrice)
.mul(
ONE_I80F48.sub(
group.banksMap.get(sourceTokenName).loanOriginationFeeRate,
),
);
} }
} }

7
ts/client/src/accounts/mangoAccount.ts
View File

@ -218,9 +218,10 @@ export class MangoAccount {
} }
/** /**
* The amount of given source native token you can swap to a target token considering all existing assets as collateral. * The max amount of given source native token you can swap to a target token.
* note: slippageAndFeesFactor is a normalized number, <1, e.g. a slippage of 5% and some fees which are 1%, then slippageAndFeesFactor = 0.94 * note: slippageAndFeesFactor is a normalized number, <1,
* the factor is used to compute how much target can be obtained by swapping source TODO: loan origination fees * e.g. a slippage of 5% and some fees which are 1%, then slippageAndFeesFactor = 0.94
* the factor is used to compute how much target can be obtained by swapping source
*/ */
getMaxSourceForTokenSwap( getMaxSourceForTokenSwap(
group: Group, group: Group,