@provenanceio/wallet-utils/esm/utils/messages/getCoinList.js

Typescript Utilities for Provenance Blockchain Wallet

import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
import { Coin } from '../../proto/cosmos/base/v1beta1/coin_pb';

/**
 * This function accepts a list of fees of any denom and
 * returns a list of Coins
 * @param coinsList: List of coins
 * @returns List of coins of type Coin[].
 */
export var getCoinList = function getCoinList(coinsList) {
  return coinsList.reduce(function (agg, curr) {
    // Find if the same coin is already in the aggregated list
    var sameCoin = agg.find(function (i) {
      return i.denom === curr.denom;
    });

    if (sameCoin) {
      // if it is find the index of it
      var sameCoinInd = agg.findIndex(function (i) {
        return i.denom === sameCoin.denom;
      }); // create a new array from the aggregate so we don't mutate it

      var result = _toConsumableArray(agg); // change the item in place to add the current amount to whatever it currently is


      result[sameCoinInd] = {
        amount: +sameCoin.amount + +curr.amount,
        denom: curr.denom
      }; // return the resulting array

      return result;
    } // if the coin wasn't already in the aggregate just add it to the aggregate here


    return [].concat(_toConsumableArray(agg), [curr]);
  }, []) // sort by denom name in ascending order (assumes all denoms are lowercase)
  .sort(function (a, b) {
    return a.denom > b.denom ? 1 : -1;
  }).map(function (feeItem) {
    // map each feeItem and create a coin out of it
    var feeCoin = new Coin();
    feeCoin.setDenom(feeItem.denom); // since the amount can be a string or number we convert it to a string here

    feeCoin.setAmount(feeItem.amount.toString());
    return feeCoin;
  });
};