import { TransactionInstruction, PublicKey, AccountMeta } from '@solana/web3.js'; // eslint-disable-line @typescript-eslint/no-unused-vars
import BN from 'bn.js'; // eslint-disable-line @typescript-eslint/no-unused-vars
import * as borsh from '@project-serum/borsh'; // 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 UpdatePoolStatusArgs {
  status: number;
}

export interface UpdatePoolStatusAccounts {
  authority: PublicKey;
  poolState: PublicKey;
}

export const layout = borsh.struct([borsh.u8('status')]);

/**
 * Update pool status for given vaule
 *
 * # Arguments
 *
 * * `ctx`- The context of accounts
 * * `status` - The vaule of status
 *
 */
export function updatePoolStatus(args: UpdatePoolStatusArgs, accounts: UpdatePoolStatusAccounts) {
  const keys: Array<AccountMeta> = [
    { pubkey: accounts.authority, isSigner: true, isWritable: false },
    { pubkey: accounts.poolState, isSigner: false, isWritable: true },
  ];
  const identifier = Buffer.from([130, 87, 108, 6, 46, 224, 117, 123]);
  const buffer = Buffer.alloc(1000);
  const len = layout.encode(
    {
      status: args.status,
    },
    buffer
  );
  const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len);
  const ix = new TransactionInstruction({ keys, programId: PROGRAM_ID, data });
  return ix;
}