@storybook/client-api/dist/cjs/parameters.js

"use strict";

require("core-js/modules/es.array.every.js");

require("core-js/modules/es.array.filter.js");

require("core-js/modules/es.array.for-each.js");

require("core-js/modules/es.array.map.js");

require("core-js/modules/es.array.reduce.js");

require("core-js/modules/es.object.entries.js");

require("core-js/modules/es.object.keys.js");

require("core-js/modules/web.dom-collections.for-each.js");

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

var _isPlainObject = _interopRequireDefault(require("lodash/isPlainObject"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

/**
 * Safely combine parameters recursively. Only copy objects when needed.
 * Algorithm = always overwrite the existing value UNLESS both values
 * are plain objects. In this case flag the key as "special" and handle
 * it with a heuristic.
 */
var combineParameters = function combineParameters() {
  for (var _len = arguments.length, parameterSets = new Array(_len), _key = 0; _key < _len; _key++) {
    parameterSets[_key] = arguments[_key];
  }

  var mergeKeys = {};
  var combined = parameterSets.reduce(function (acc, p) {
    Object.entries(p).forEach(function (_ref) {
      var _ref2 = _slicedToArray(_ref, 2),
          key = _ref2[0],
          value = _ref2[1];

      var existing = acc[key];

      if (Array.isArray(value) || typeof existing === 'undefined') {
        acc[key] = value;
      } else if ((0, _isPlainObject.default)(value) && (0, _isPlainObject.default)(existing)) {
        // do nothing, we'll handle this later
        mergeKeys[key] = true;
      } else if (typeof value !== 'undefined') {
        acc[key] = value;
      }
    });
    return acc;
  }, {});
  Object.keys(mergeKeys).forEach(function (key) {
    var mergeValues = parameterSets.map(function (p) {
      return p[key];
    }).filter(function (value) {
      return typeof value !== 'undefined';
    });

    if (mergeValues.every(function (value) {
      return (0, _isPlainObject.default)(value);
    })) {
      combined[key] = combineParameters.apply(void 0, _toConsumableArray(mergeValues));
    } else {
      combined[key] = mergeValues[mergeValues.length - 1];
    }
  });
  return combined;
};

exports.combineParameters = combineParameters;