"use strict";

const toKey = require("../../cast/toKey");

const isNil = require("../../is/nullOrUndefined");

const isObj = require("../../is/obj"); // @TODO ~ also see reduceMap it has keyValReducer, can do `isPairs`


const defaultReduceArrayToObjIterator = (reduced, next, index) => {
  if (isObj(next)) Object.assign(reduced, next);else reduced[toKey(index)] = next;
  return reduced;
};
/**
 * @since 4.0.0
 * @version 5.0.0 <- added index
 *
 * @param {Array} array array to reduce to object
 * @param {Function} iterator function to call on reduced, with `next`
 * @return {Object} reduced array
 *
 *
 * @name reduceObj
 * @alias reduceObject
 * @alias toObj
 *
 * @see Chainable
 *
 * @TODO example
 * @TODO @curried 2
 */


module.exports = function reduceArrayToObj(array, iterator) {
  if (isNil(iterator)) iterator = defaultReduceArrayToObjIterator;
  let index = 0;
  return array.reduce(function (reduced, next) {
    iterator(reduced, next, index);
    return reduced;
  }, {});
};