@kamino-finance/scope-sdk
Version:
Scope Oracle SDK
60 lines (55 loc) • 2.01 kB
text/typescript
/* eslint-disable @typescript-eslint/no-unused-vars */
import {
Address,
isSome,
IAccountMeta,
IAccountSignerMeta,
IInstruction,
Option,
TransactionSigner,
} from "@solana/kit"
/* eslint-enable @typescript-eslint/no-unused-vars */
import BN from "bn.js" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as borsh from "@coral-xyz/borsh" // eslint-disable-line @typescript-eslint/no-unused-vars
import { borshAddress } from "../utils" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars
import { PROGRAM_ID } from "../programId"
export interface GetSwapAmountAndFeesArgs {
params: types.GetSwapAmountAndFeesParamsFields
}
export interface GetSwapAmountAndFeesAccounts {
perpetuals: Address
pool: Address
receivingCustody: Address
receivingCustodyOracleAccount: Address
dispensingCustody: Address
dispensingCustodyOracleAccount: Address
}
export const layout = borsh.struct([
types.GetSwapAmountAndFeesParams.layout("params"),
])
export function getSwapAmountAndFees(
args: GetSwapAmountAndFeesArgs,
accounts: GetSwapAmountAndFeesAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.perpetuals, role: 0 },
{ address: accounts.pool, role: 0 },
{ address: accounts.receivingCustody, role: 0 },
{ address: accounts.receivingCustodyOracleAccount, role: 0 },
{ address: accounts.dispensingCustody, role: 0 },
{ address: accounts.dispensingCustodyOracleAccount, role: 0 },
]
const identifier = Buffer.from([247, 121, 40, 99, 35, 82, 100, 32])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
params: types.GetSwapAmountAndFeesParams.toEncodable(args.params),
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}