getObjectsKeys.js

const numberOperators = ['$lt', '$gt', '$gte', '$lte', '$eq', '$ne'];
// TODO: Добавить поддержку otherOperators
const otherOperators = ['$eq', '$ne'];
/*
    Пример объекта на вход:
        const valueRaw = {
            prepayment: {
                value: {
                    $gte: '10000',
                    $lte: '20000'
                },
                date: 123
            }
        };

    Пример выходных значений:
    1. getObjectKeys:
        [ 'prepayment.value.$gte', 'prepayment.value.$lte', 'prepayment.date' ]
    2.1. getObjectKeysWithValuesByArray (join = true):
        [
          { 'prepayment.value.$gte': '10000' },
          { 'prepayment.value.$lte': '20000' },
          { 'prepayment.date': 123 }
        ]
    2.2. getObjectKeysWithValuesByArray (join = false):
        [
          { 'prepayment.value': { '$gte': '10000' } },
          { 'prepayment.value': { '$lte': '20000' } },
          { 'prepayment.date': 123 }
        ]
    3.1. getObjectKeysWithValuesByObject (join = true):
        {
          'prepayment.value': { '$gte': '10000', '$lte': '20000' },
          'prepayment.date': 123
        }
    3.2. getObjectKeysWithValuesByObject (join = false):
        {
          'prepayment.value.$gte': '10000',
          'prepayment.value.$lte': '20000',
          'prepayment.date': 123
        }
 */

function getObjectKeys(object, prefix = '') {
    return Object.keys(object).reduce((acc, key) => {
        if (Object(object[key]) === object[key]) {
            acc.push(...getObjectKeys(object[key], `${prefix}${prefix.length > 0 ? '.' : ''}${key}`));
        } else {
            acc.push(`${prefix}${prefix.length > 0 ? '.' : ''}${key}`);
        }

        return acc;
    }, []);
}

function getObjectKeysWithValuesByArray(o, prefix = '', join = false) {
    return Object.keys(o).reduce((acc, key) => {
        if (Object(o[key]) === o[key]) {
            acc.push(...getObjectKeysWithValuesByArray(o[key], `${prefix}${prefix.length > 0 ? '.' : ''}${key}`, join));
        } else if (numberOperators.includes(key)) {
            if (join) {
                acc.push({ [`${prefix}.${key}`]: o[key] });
            } else {
                acc.push({
                    [prefix]: {
                        [key]: o[key]
                    }
                });
            }
        } else {
            acc.push({
                [`${prefix}${prefix.length > 0 ? '.' : ''}${key}`]: o[key]
            });
        }

        return acc;
    }, []);
}

function getObjectKeysWithValuesByObject(o, prefix = '', join = false) {
    return Object.keys(o).reduce((acc, key) => {
        if (Object(o[key]) === o[key]) {
            Object.assign(acc, {
                ...getObjectKeysWithValuesByObject(o[key], `${prefix}${prefix.length > 0 ? '.' : ''}${key}`, join)
            });
        } else if (numberOperators.includes(key)) {
            if (join) {
                if (acc[prefix]) {
                    acc[prefix][key] = o[key];
                } else {
                    Object.assign(acc, {
                        [prefix]: {
                            [key]: o[key]
                        }
                    });
                }
            } else {
                Object.assign(acc, {
                    [`${prefix}.${key}`]: o[key]
                });
            }
        } else {
            const updatedKey = `${prefix}${prefix.length > 0 ? '.' : ''}${key}`;

            Object.assign(acc, {
                [updatedKey]: o[key]
            });
        }

        return acc;
    }, {});
}