map-transform/dist/transformers/logical.js

Map and transform objects with mapping definitions

import { setTargetOnState, goForward } from '../utils/stateHelpers.js';
import { defToDataMapper } from '../utils/definitionHelpers.js';
import { ensureArray } from '../utils/array.js';
const getLogicalFn = (operator) => operator === 'OR'
    ? (a, b) => Boolean(a) || Boolean(b)
    : (a, b) => Boolean(a) && Boolean(b);
const transformer = function logical({ path = '.', operator = 'AND', }) {
    return (options) => {
        const pathArr = ensureArray(path);
        const getFns = pathArr.map((path) => defToDataMapper(path, options));
        const setFns = pathArr.map((path) => defToDataMapper(`>${path}`, options));
        const logicalOp = getLogicalFn(operator);
        return async (data, state) => {
            if (state.rev) {
                const value = Boolean(data);
                let obj;
                for (const setFn of setFns) {
                    obj = await setFn(value, setTargetOnState(goForward(state), obj));
                }
                return obj;
            }
            else {
                const values = [];
                for (const getFn of getFns) {
                    values.push(await getFn(data, state));
                }
                return values.reduce(logicalOp);
            }
        };
    };
};
export default transformer;
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