@signaldb/core/dist/index21.cjs.js

SignalDB is a client-side database that provides a simple MongoDB-like interface to the data with first-class typescript support to achieve an optimistic UI. Data persistence can be achieved by using storage providers that store the data through a JSON in

const require_serializeValue = require("./index15.cjs.js");
const require_isFieldExpression = require("./index20.cjs.js");
//#region src/utils/getMatchingKeys.ts
/**
* Extracts the matching and excluded keys for a given field in a selector.
* Supports serialized values and `$in`/`$nin` field expressions for optimization.
* Returns `null` for include/exclude if the field cannot be optimized.
* @template T - The type of the items in the selector.
* @template I - The type of the unique identifier for the items.
* @param field - The name of the field to extract matching keys for.
* @param selector - The selector object containing query criteria.
* @returns An object containing arrays of serialized included and excluded keys,
*   or `null` if the field cannot be optimized.
*/
function getMatchingKeys(field, selector) {
	const result = {
		include: null,
		exclude: null
	};
	const fieldSelector = selector[field];
	if (fieldSelector instanceof RegExp) return result;
	if (fieldSelector == null) return result;
	if (require_isFieldExpression.default(fieldSelector)) {
		if (fieldSelector.$ne != null) {
			result.exclude = [require_serializeValue.default(fieldSelector.$ne)];
			return result;
		}
		if (Array.isArray(fieldSelector.$in) && fieldSelector.$in.length > 0) {
			result.include = fieldSelector.$in.map(require_serializeValue.default);
			return result;
		}
		if (Array.isArray(fieldSelector.$nin) && fieldSelector.$nin.length > 0) {
			result.exclude = fieldSelector.$nin.map(require_serializeValue.default);
			return result;
		}
		return {
			include: null,
			exclude: null
		};
	}
	result.include = [require_serializeValue.default(fieldSelector)];
	return result;
}
//#endregion
exports.default = getMatchingKeys;