@bemedev/decompose/lib/decompose.js

Decompose object and so more

import { DELIMITER, LEFT_BRACKET, RIGHT_BRACKET } from "./constants/strings.js";
import { DEFAULT_DECOMPOSE_OPTIONS } from "./constants/objects.js";
import { isPrimitive } from "./helpers.js";
//#region src/decompose.ts
function ddecompose(arg, prev = "", options = DEFAULT_DECOMPOSE_OPTIONS, first = true) {
	const { object } = {
		...DEFAULT_DECOMPOSE_OPTIONS,
		...options
	};
	const canAddObjectKeys = object === "both" || object === "object";
	const canAddKeys = object === "both" || object === "key";
	const _prev = prev ? prev + DELIMITER : "";
	const output = [];
	if (Array.isArray(arg)) {
		if (canAddObjectKeys && !first) output.push([`${prev}`, arg]);
		arg.forEach((item, index) => {
			const values = ddecompose(item, `${_prev}${LEFT_BRACKET}${index}${RIGHT_BRACKET}`, options, false);
			output.push(...values);
		});
		return output;
	}
	if (isPrimitive(arg)) {
		const isFirst = !prev.includes(DELIMITER);
		if (canAddKeys || isFirst) output.push([`${prev}`, arg]);
		return output;
	}
	if (canAddObjectKeys && prev !== "") output.push([`${prev}`, arg]);
	Object.entries(arg).forEach(([key, value]) => {
		const values = ddecompose(value, `${_prev}${key}`, options, false);
		output.push(...values);
	});
	return output;
}
const _decompose = (val, options) => {
	const entries1 = ddecompose(val, "", options);
	const { sep, start } = {
		...DEFAULT_DECOMPOSE_OPTIONS,
		...options
	};
	if (entries1.length == 0) {
		if (Array.isArray(val)) return [];
		return {};
	}
	const regexDel = new RegExp(DELIMITER, "g");
	const regexLeft = new RegExp(LEFT_BRACKET, "g");
	const regexRight = new RegExp(RIGHT_BRACKET, "g");
	const entries2 = entries1.map(([__key, value]) => {
		const _key = __key.replace(regexDel, sep).replace(regexLeft, `[`).replace(regexRight, `]`);
		return [start ? `${sep}${_key}` : _key, value];
	});
	return Object.fromEntries(entries2);
};
/* v8 ignore next 1 */
const decompose = (val, options) => _decompose(val, options);
decompose.low = decompose;
decompose.strict = decompose;
//#endregion
export { decompose };

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