@kamino-finance/scope-sdk
Version:
Scope Oracle SDK
81 lines (76 loc) • 2.74 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 RefreshPythLazerPriceArgs {
tokens: Array<number>
serializedPythMessage: Uint8Array
ed25519InstructionIndex: number
}
export interface RefreshPythLazerPriceAccounts {
/** The account that signs the transaction. */
user: TransactionSigner
oraclePrices: Address
oracleMappings: Address
oracleTwaps: Address
pythProgram: Address
pythStorage: Address
pythTreasury: Address
systemProgram: Address
instructionsSysvar: Address
}
export const layout = borsh.struct([
borsh.vec(borsh.u16(), "tokens"),
borsh.vecU8("serializedPythMessage"),
borsh.u16("ed25519InstructionIndex"),
])
/**
* IMPORTANT: we assume the tokens passed in to this ix are in the same order in which
* they are found in the message payload. Thus, we rely on the client to do this work
*/
export function refreshPythLazerPrice(
args: RefreshPythLazerPriceArgs,
accounts: RefreshPythLazerPriceAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.user.address, role: 3, signer: accounts.user },
{ address: accounts.oraclePrices, role: 1 },
{ address: accounts.oracleMappings, role: 0 },
{ address: accounts.oracleTwaps, role: 1 },
{ address: accounts.pythProgram, role: 0 },
{ address: accounts.pythStorage, role: 0 },
{ address: accounts.pythTreasury, role: 1 },
{ address: accounts.systemProgram, role: 0 },
{ address: accounts.instructionsSysvar, role: 0 },
]
const identifier = Buffer.from([122, 47, 177, 133, 177, 35, 93, 118])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
tokens: args.tokens,
serializedPythMessage: Buffer.from(
args.serializedPythMessage.buffer,
args.serializedPythMessage.byteOffset,
args.serializedPythMessage.length
),
ed25519InstructionIndex: args.ed25519InstructionIndex,
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}