/* eslint-disable @typescript-eslint/no-unused-vars */
import {
  Address,
  isSome,
  AccountMeta,
  AccountSignerMeta,
  Instruction,
  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 const DISCRIMINATOR = Buffer.from([247, 254, 126, 17, 26, 6, 215, 117])

export interface AddCustodyArgs {
  params: types.AddCustodyParamsFields
}

export interface AddCustodyAccounts {
  admin: TransactionSigner
  transferAuthority: Address
  perpetuals: Address
  pool: Address
  custody: Address
  custodyTokenAccount: Address
  custodyTokenMint: Address
  systemProgram: Address
  tokenProgram: Address
  rent: Address
}

export const layout = borsh.struct([
  types.AddCustodyParams.layout("params"),
])

export function addCustody(
  args: AddCustodyArgs,
  accounts: AddCustodyAccounts,
  remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [],
  programAddress: Address = PROGRAM_ID
) {
  const keys: Array<AccountMeta | AccountSignerMeta> = [
    { address: accounts.admin.address, role: 3, signer: accounts.admin },
    { address: accounts.transferAuthority, role: 0 },
    { address: accounts.perpetuals, role: 0 },
    { address: accounts.pool, role: 1 },
    { address: accounts.custody, role: 1 },
    { address: accounts.custodyTokenAccount, role: 1 },
    { address: accounts.custodyTokenMint, role: 0 },
    { address: accounts.systemProgram, role: 0 },
    { address: accounts.tokenProgram, role: 0 },
    { address: accounts.rent, role: 0 },
    ...remainingAccounts,
  ]
  const buffer = Buffer.alloc(1000)
  const len = layout.encode(
    {
      params: types.AddCustodyParams.toEncodable(args.params),
    },
    buffer
  )
  const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len)
  const ix: Instruction = { accounts: keys, programAddress, data }
  return ix
}