SellShare

SellShare.js

//update sender's account
const new_sender_balance = new BigNum(sender.balance).add(lisk_amount).toString();

const new_sender_share = (!sender.asset.share)? this.asset.amount: 
new BigNum(sender.asset.share).sub(this.asset.amount).toString();

const updated_sender = { ...sender, balance: new_sender_balance,
asset: { ...sender.asset, share: new_sender_share} };

store.account.set(updated_sender.address, updated_sender);

//update Manager's account

const new_recipient_balance = new BigNum(recipient.balance).sub(lisk_amount).toString();

var new_holders = recipient.asset.holders;
new_holders[sender.address] = new_sender_share;
if(new_sender_share === '0'){
delete new_holders[sender.address];
}

const new_share_supply = new BigNum(recipient.asset.shareSupply).sub(this.asset.amount).toString();

const updated_recipient = {...recipient, balance : new_recipient_balance,
                           asset:{...recipient.asset, holders: new_holders, shareSupply: new_share_supply}};

store.account.set(updated_recipient.address, updated_recipient);