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73 lines
2.6 KiB
73 lines
2.6 KiB
3 years ago
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.get = void 0;
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var _flat = require("flat");
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var _constants = require("./constants");
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var _selectParams = require("./select-params");
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var _propertyKeyRegex = require("./property-key-regex");
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const TEMP_HOLDING_KEY = 'TEMP_HOLDING_KEY';
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/**
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* @load ./get.doc.md
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* @memberof module:flat
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* @param {FlattenParams} params flatten params from which property has to be taken
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* @param {string} [propertyPath] name of the property
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* @param {GetOptions} options options
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* @returns {any} when property key exists directly it returns what is inside,
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* otherwise it tries to find any nested objects and returns
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* them
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*/
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const get = (params = {}, propertyPath, options) => {
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if (!propertyPath) {
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return (0, _flat.unflatten)(params);
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} // when object has this key - simply return it
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// we cannot rely on typeof params[propertyPath !== 'undefined' because params can actually be
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// undefined and in such case if would pass and function would return [undefined]
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if (Object.keys(params).find(key => key === propertyPath)) {
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return params[propertyPath];
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}
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const regex = (0, _propertyKeyRegex.propertyKeyRegex)(propertyPath, options);
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const selectedParams = (0, _selectParams.selectParams)(params, propertyPath, options);
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const nestedProperties = Object.keys(selectedParams).reduce((memo, key, index) => {
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let newKey = key.replace(regex, `${TEMP_HOLDING_KEY}${_constants.DELIMITER}`); // when user wants to take allSiblings we have to fix the indexes so nested items from
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// different siblings don't overlap
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//
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// Example for key `nested.1.el`:
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// 'nested.0.el.0.value': 'val0.0',
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// 'nested.0.el.1.value': 'val0.1',
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// 'nested.1.el.0.value': 'val1',
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// 'nested.1.el.1.value': 'val2',
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//
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// has to be changed to:
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// 'TEMP_HOLDING_KEY.0.value': 'val0.0',
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// 'TEMP_HOLDING_KEY.1.value': 'val0.1',
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// 'TEMP_HOLDING_KEY.2.value': 'val1',
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// 'TEMP_HOLDING_KEY.3.value': 'val2',
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if (options !== null && options !== void 0 && options.includeAllSiblings) {
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newKey = newKey.replace(new RegExp(`${TEMP_HOLDING_KEY}\\${_constants.DELIMITER}(\\d*)`), `${TEMP_HOLDING_KEY}${_constants.DELIMITER}${index}`);
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}
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memo[newKey] = selectedParams[key];
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return memo;
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}, {});
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if (Object.keys(nestedProperties).length) {
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return (0, _flat.unflatten)(nestedProperties)[TEMP_HOLDING_KEY];
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}
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return undefined;
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};
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exports.get = get;
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