@kamino-finance/scope-sdk
Version:
Scope Oracle SDK
76 lines (71 loc) • 2.3 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 UpdateMappingArgs {
token: number
priceType: number
twapEnabled: boolean
twapSource: number
refPriceIndex: number
feedName: string
genericData: Array<number>
}
export interface UpdateMappingAccounts {
admin: TransactionSigner
configuration: Address
oracleMappings: Address
priceInfo: Option<Address>
}
export const layout = borsh.struct([
borsh.u16("token"),
borsh.u8("priceType"),
borsh.bool("twapEnabled"),
borsh.u16("twapSource"),
borsh.u16("refPriceIndex"),
borsh.str("feedName"),
borsh.array(borsh.u8(), 20, "genericData"),
])
export function updateMapping(
args: UpdateMappingArgs,
accounts: UpdateMappingAccounts,
programAddress: Address = PROGRAM_ID
) {
const keys: Array<IAccountMeta | IAccountSignerMeta> = [
{ address: accounts.admin.address, role: 2, signer: accounts.admin },
{ address: accounts.configuration, role: 0 },
{ address: accounts.oracleMappings, role: 1 },
isSome(accounts.priceInfo)
? { address: accounts.priceInfo.value, role: 0 }
: { address: programAddress, role: 0 },
]
const identifier = Buffer.from([56, 102, 90, 236, 243, 21, 185, 105])
const buffer = Buffer.alloc(1000)
const len = layout.encode(
{
token: args.token,
priceType: args.priceType,
twapEnabled: args.twapEnabled,
twapSource: args.twapSource,
refPriceIndex: args.refPriceIndex,
feedName: args.feedName,
genericData: args.genericData,
},
buffer
)
const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
const ix: IInstruction = { accounts: keys, programAddress, data }
return ix
}