@kamino-finance/farms-sdk/src/@codegen/farms/instructions/unstake.ts

Farms SDK

/* 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 UnstakeArgs {
  stakeSharesScaled: BN
}

export interface UnstakeAccounts {
  owner: TransactionSigner
  userState: Address
  farmState: Address
  scopePrices: Option<Address>
}

export const layout = borsh.struct<UnstakeArgs>([
  borsh.u128("stakeSharesScaled"),
])

export function unstake(
  args: UnstakeArgs,
  accounts: UnstakeAccounts,
  remainingAccounts: Array<IAccountMeta | IAccountSignerMeta> = [],
  programAddress: Address = PROGRAM_ID
) {
  const keys: Array<IAccountMeta | IAccountSignerMeta> = [
    { address: accounts.owner.address, role: 3, signer: accounts.owner },
    { address: accounts.userState, role: 1 },
    { address: accounts.farmState, role: 1 },
    isSome(accounts.scopePrices)
      ? { address: accounts.scopePrices.value, role: 0 }
      : { address: programAddress, role: 0 },
    ...remainingAccounts,
  ]
  const identifier = Buffer.from([90, 95, 107, 42, 205, 124, 50, 225])
  const buffer = Buffer.alloc(1000)
  const len = layout.encode(
    {
      stakeSharesScaled: args.stakeSharesScaled,
    },
    buffer
  )
  const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
  const ix: IInstruction = { accounts: keys, programAddress, data }
  return ix
}