@kamino-finance/scope-sdk
Version:
Scope Oracle SDK
94 lines (89 loc) • 3.03 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 OrcaSwapArgs {
amount: BN
otherAmountThreshold: BN
sqrtPriceLimit: BN
amountSpecifiedIsInput: boolean
aToB: boolean
}
export interface OrcaSwapAccounts {
funder: TransactionSigner
tokenATokenProgram: Address
tokenBTokenProgram: Address
memoProgram: Address
tokenAuthority: Address
whirlpool: Address
tokenOwnerAccountA: Address
tokenVaultA: Address
tokenOwnerAccountB: Address
tokenVaultB: Address
tokenMintA: Address
tokenMintB: Address
tickArray0: Address
tickArray1: Address
tickArray2: Address
oracle: Address
whirlpoolProgram: Address
}
export const layout = borsh.struct([
borsh.u64("amount"),
borsh.u64("otherAmountThreshold"),
borsh.u128("sqrtPriceLimit"),
borsh.bool("amountSpecifiedIsInput"),
borsh.bool("aToB"),
])
export function orcaSwap(
args: OrcaSwapArgs,
accounts: OrcaSwapAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.funder.address, role: 3, signer: accounts.funder },
{ address: accounts.tokenATokenProgram, role: 0 },
{ address: accounts.tokenBTokenProgram, role: 0 },
{ address: accounts.memoProgram, role: 0 },
{ address: accounts.tokenAuthority, role: 0 },
{ address: accounts.whirlpool, role: 0 },
{ address: accounts.tokenOwnerAccountA, role: 0 },
{ address: accounts.tokenVaultA, role: 0 },
{ address: accounts.tokenOwnerAccountB, role: 0 },
{ address: accounts.tokenVaultB, role: 0 },
{ address: accounts.tokenMintA, role: 0 },
{ address: accounts.tokenMintB, role: 0 },
{ address: accounts.tickArray0, role: 0 },
{ address: accounts.tickArray1, role: 0 },
{ address: accounts.tickArray2, role: 0 },
{ address: accounts.oracle, role: 0 },
{ address: accounts.whirlpoolProgram, role: 0 },
]
const identifier = Buffer.from([33, 94, 249, 97, 250, 254, 198, 93])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
amount: args.amount,
otherAmountThreshold: args.otherAmountThreshold,
sqrtPriceLimit: args.sqrtPriceLimit,
amountSpecifiedIsInput: args.amountSpecifiedIsInput,
aToB: args.aToB,
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}