"use strict";

// Simple data type to represent a query path and corresponding schema path tied together, because these are basically always used together, and it would bloat up the implementation code otherwise

function createInstance({ queryPath, schemaPath, queryObject, schemaObject }) {
	 return {
		query: queryPath,
		schema: schemaPath,
		child: function (property, { queryOverride, schemaOverride } = {}) {
			return createInstance({
				queryPath: queryPath.concat([ property ]),
				schemaPath: schemaPath.concat([ property ]),
				queryObject: queryOverride ?? queryObject[property],
				schemaObject: schemaOverride ?? schemaObject[property]
			});
		}
	 };
}

module.exports = function createCursor({ query, schema }) {
	return createInstance({
		queryPath: [],
		schemaPath: [],
		queryObject: query,
		schemaObject: schema
	});
};