rule-filter-validator/build/esm/parse-filter.js

A object and scope validator based on structured rules

/* eslint-disable @typescript-eslint/ban-ts-comment */
import { get } from 'lodash-es';
import { adjustDate } from './adjust-date.js';
import { functions } from './functions.js';
import { toArray } from './to-array.js';
export const parseFilter = (filter, context = {}) => {
    return Object.entries(filter).reduce((result, [key, value]) => {
        if (['_or', '_and'].includes(key)) {
            // @ts-ignore
            result[key] = value.map((filter) => parseFilter(filter, context));
        }
        else if (['_in', '_nin', '_between', '_nbetween'].includes(key)) {
            // @ts-ignore
            result[key] = toArray(value).flatMap(value => parseFilterValue(value, context));
        }
        else if (key.startsWith('_')) {
            // @ts-ignore
            result[key] = parseFilterValue(value, context);
        }
        else {
            // @ts-ignore
            result[key] = parseFilter(value, context);
        }
        return result;
    }, {});
};
function parseFilterValue(value, context) {
    if (value === 'true')
        return true;
    if (value === 'false')
        return false;
    if (value === 'null' || value === 'NULL')
        return null;
    if (typeof value === 'string' && value.startsWith('$'))
        return parseDynamicVariable(value, context);
    return value;
}
function parseDynamicVariable(value, context) {
    if (value.startsWith('$NOW')) {
        if (value.includes('(') && value.includes(')')) {
            const [matched, adjustment, functionName] = value.match(/\(([^)]+)\)(?:\.(\w+))?/);
            if (!adjustment)
                return new Date();
            let date = adjustDate(new Date(), adjustment);
            return functionName ? functions[functionName](date) : date;
        }
        return new Date();
    }
    return get(context, value, value);
}
//# sourceMappingURL=parse-filter.js.map