"use strict";

const required = require("@validatem/required");
const arrayOf = require("@validatem/array-of");
const isString = require("@validatem/is-string");
const isFunction = require("@validatem/is-function");
const isArray = require("@validatem/is-array");
const either = require("@validatem/either");
const isValue = require("@validatem/is-value");

const isPositiveInteger = require("./is-positive-integer");

function makeRules(recurse) {
	// We want to recurse exactly one level
	let isTaskArray = (recurse === true)
		? arrayOf(makeRules(false))
		: isArray;

	return {
		name: [ required, isString ],
		version: [ required, isString ],
		ttl: [ isPositiveInteger ],
		parallelTasks: [ either([ isPositiveInteger, isValue(Infinity) ]) ],
		taskInterval: [ isPositiveInteger ],
		dependents: [ required, isTaskArray ],
		dependencies: [ required, isTaskArray ],
		tags: [ required, arrayOf(isString) ],
		run: [ required, isFunction ]
	};
}

module.exports = makeRules(true);