"use strict";

const getChain = require("../get-chain");

function testRule(error, rule) {
	if (typeof rule === "function") {
		if (rule.prototype != null) {
			// Constructor function / class
			return error instanceof rule;
		} else {
			// Predicate function
			return Boolean(rule(error));
		}
	} else if (typeof rule === "object") {
		for (let [ key, value ] of Object.entries(rule)) {
			if (error[key] !== value) {
				return false;
			}
		}

		return true;
	} else {
		throw new Error(`Invalid rule type`);
	}
}

module.exports = function isErrorType(error, rules) {
	// FIXME: Use validatem here as well, for rule validation?
	let chain = getChain(error);

	return chain.some((causeError) => {
		if (Array.isArray(rules)) {
			return rules.every((rule) => testRule(causeError, rule));
		} else {
			return testRule(causeError, rules);
		}
	});
};