/* jslint node: true, esnext: true */
"use strict";

const llm = require('loglevel-mixin'),
	stm = require('statetransition-mixin');

const actions = stm.prepareActions({
	start: {
		stopped: {
			target: "running",
			during: "starting",
			timeout: 200
		}
	},
	stop: {
		running: {
			target: "stopped",
			during: "stopping",
			timeout: 100
		},
		starting: {
			target: "stopped",
			during: "stopping",
			timeout: 100
		}
	}
});

const BaseService = {

	/**
	 * To be overwritten
	 * Called when the state changes
	 * @param {String} oldState
	 * @param {String} newState
	 */
	stateChanged(oldState, newState) {
			this.trace(level => `${this} transitioned from ${oldState} -> ${newState}`);
		},

		/**
		 * Called when state transition is not allowed
		 * @param {String} action
		 * @return {Promise} rejecting with an Error
		 */
		rejectWrongState(action) {
			return Promise.reject(new Error(`Can't ${action} ${this} in ${this.state} state`));
		},

		/**
		 * Returns the string representation of this step
		 * @return {String} human readable name
		 */
		toString() {
			return this.name;
		},

		log(level, args) {
			// TODO
			console.log(`${level} ${this}: ${args}`);
		}
};

llm.defineLoggerMethods(BaseService, llm.defaultLogLevels);
stm.defineActionMethods(BaseService, actions);

/**
 * Create a new service
 * The initial state is 'stopped'
 * @param {String} name
 * @param {Object} values used to form the service
 * @param {Service} optional base service to use
 * @return {Service} newly created service
 */
exports.createService = function (name, values, baseService) {

	const props = {
		name: {
			value: name
		}
	};

	let logLevel = llm.defaultLogLevels.info;

	for (let key in values) {
		if (key === 'logLevel') {
			logLevel = llm.defaultLogLevels[values[key]] ||  defaultLogLevels.info;
		} else if (key !== 'name') {
			props[key] = {
				value: values[key]
			};
		}
	}

	const service = Object.create(baseService ? baseService : BaseService, props);

	llm.defineLogLevelProperties(service, llm.defaultLogLevels, logLevel);
	stm.defineStateTransitionProperties(service, actions, "stopped");

	return service;
};

@@ -248,9 +248,10 @@
 ut: 
-2
+50
 00%0A%09
@@ -332,25 +332,26 @@
 %09%09%09timeout: 
-1
+50
 00%0A%09%09%7D,%0A%09%09st
@@ -421,9 +421,10 @@
 ut: 
-1
+50
 00%0A%09

increase transition timeouts