"use strict";

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.SEARCH_MARK = void 0;

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var _objectSpread3 = _interopRequireDefault(require("@babel/runtime/helpers/objectSpread2"));

var _toConsumableArray2 = _interopRequireDefault(require("@babel/runtime/helpers/toConsumableArray"));

var React = _interopRequireWildcard(require("react"));

var SEARCH_MARK = '__rc_cascader_search_mark__';
exports.SEARCH_MARK = SEARCH_MARK;

var defaultFilter = function defaultFilter(search, options, _ref) {
  var label = _ref.label;
  return options.some(function (opt) {
    return String(opt[label]).toLowerCase().includes(search.toLowerCase());
  });
};

var defaultRender = function defaultRender(inputValue, path, prefixCls, fieldNames) {
  return path.map(function (opt) {
    return opt[fieldNames.label];
  }).join(' / ');
};

var _default = function _default(search, options, fieldNames, prefixCls, config, changeOnSelect) {
  var _config$filter = config.filter,
      filter = _config$filter === void 0 ? defaultFilter : _config$filter,
      _config$render = config.render,
      render = _config$render === void 0 ? defaultRender : _config$render,
      _config$limit = config.limit,
      limit = _config$limit === void 0 ? 50 : _config$limit,
      sort = config.sort;
  return React.useMemo(function () {
    var filteredOptions = [];

    if (!search) {
      return [];
    }

    function dig(list, pathOptions) {
      list.forEach(function (option) {
        // Perf saving when `sort` is disabled and `limit` is provided
        if (!sort && limit > 0 && filteredOptions.length >= limit) {
          return;
        }

        var connectedPathOptions = [].concat((0, _toConsumableArray2.default)(pathOptions), [option]);
        var children = option[fieldNames.children]; // If current option is filterable

        if ( // If is leaf option
        !children || children.length === 0 || // If is changeOnSelect
        changeOnSelect) {
          if (filter(search, connectedPathOptions, {
            label: fieldNames.label
          })) {
            var _objectSpread2;

            filteredOptions.push((0, _objectSpread3.default)((0, _objectSpread3.default)({}, option), {}, (_objectSpread2 = {}, (0, _defineProperty2.default)(_objectSpread2, fieldNames.label, render(search, connectedPathOptions, prefixCls, fieldNames)), (0, _defineProperty2.default)(_objectSpread2, SEARCH_MARK, connectedPathOptions), _objectSpread2)));
          }
        }

        if (children) {
          dig(option[fieldNames.children], connectedPathOptions);
        }
      });
    }

    dig(options, []); // Do sort

    if (sort) {
      filteredOptions.sort(function (a, b) {
        return sort(a[SEARCH_MARK], b[SEARCH_MARK], search, fieldNames);
      });
    }

    return limit > 0 ? filteredOptions.slice(0, limit) : filteredOptions;
  }, [search, options, fieldNames, prefixCls, render, changeOnSelect, filter, sort, limit]);
};

exports.default = _default;