@kamino-finance/kliquidity-sdk/src/@codegen/kliquidity/instructions/flashSwapUnevenVaultsStart.ts

Typescript SDK for interacting with the Kamino Liquidity (kliquidity) protocol

/* 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 FlashSwapUnevenVaultsStartArgs {
  amount: BN
  aToB: boolean
}

export interface FlashSwapUnevenVaultsStartAccounts {
  swapper: TransactionSigner
  strategy: Address
  globalConfig: Address
  tokenAVault: Address
  tokenBVault: Address
  tokenAAta: Address
  tokenBAta: Address
  baseVaultAuthority: Address
  pool: Address
  position: Address
  scopePrices: Address
  tokenInfos: Address
  tickArrayLower: Address
  tickArrayUpper: Address
  tokenAMint: Address
  tokenBMint: Address
  tokenATokenProgram: Address
  tokenBTokenProgram: Address
  instructionSysvarAccount: Address
  consensusAccount: Address
}

export const layout = borsh.struct([borsh.u64("amount"), borsh.bool("aToB")])

/**
 * Start of a Flash swap uneven vaults.
 *
 * This needs to be the first instruction of the transaction or preceded only by a
 * ComputeBudget.
 *
 * This ix has to be paired with a `flash_swap_uneven_vaults_end` (`FlashSwapUnevenVaultsEnd`)
 * as the last instruction of the transaction. No other instruction targeted the program is
 * allowed.
 * The instructions between the start and end instructions are expected to perform the swap.
 */
export function flashSwapUnevenVaultsStart(
  args: FlashSwapUnevenVaultsStartArgs,
  accounts: FlashSwapUnevenVaultsStartAccounts,
  programAddress: Address = PROGRAM_ID
) {
  const keys: Array<IAccountMeta | IAccountSignerMeta> = [
    { address: accounts.swapper.address, role: 3, signer: accounts.swapper },
    { address: accounts.strategy, role: 1 },
    { address: accounts.globalConfig, role: 0 },
    { address: accounts.tokenAVault, role: 1 },
    { address: accounts.tokenBVault, role: 1 },
    { address: accounts.tokenAAta, role: 1 },
    { address: accounts.tokenBAta, role: 1 },
    { address: accounts.baseVaultAuthority, role: 1 },
    { address: accounts.pool, role: 1 },
    { address: accounts.position, role: 1 },
    { address: accounts.scopePrices, role: 0 },
    { address: accounts.tokenInfos, role: 0 },
    { address: accounts.tickArrayLower, role: 0 },
    { address: accounts.tickArrayUpper, role: 0 },
    { address: accounts.tokenAMint, role: 0 },
    { address: accounts.tokenBMint, role: 0 },
    { address: accounts.tokenATokenProgram, role: 0 },
    { address: accounts.tokenBTokenProgram, role: 0 },
    { address: accounts.instructionSysvarAccount, role: 0 },
    { address: accounts.consensusAccount, role: 0 },
  ]
  const identifier = Buffer.from([129, 111, 174, 12, 10, 60, 149, 193])
  const buffer = Buffer.alloc(1000)
  const len = layout.encode(
    {
      amount: args.amount,
      aToB: args.aToB,
    },
    buffer
  )
  const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
  const ix: IInstruction = { accounts: keys, programAddress, data }
  return ix
}