/* global Log, Module, moment */

/* Magic Mirror
 * Module: Compliments
 *
 * By Michael Teeuw http://michaelteeuw.nl
 * MIT Licensed.
 */

Module.register('compliments',{

	// Module config defaults.
	defaults: {
		compliments: {
			morning: [
	            'Good morning, handsome!',
	            'Enjoy your day!',
	            'How was your sleep?'
	        ],
	        afternoon: [
	            'Hello, beauty!',
	            'You look sexy!',
	            'Looking good today!'
	        ],
	        evening: [
	            'Wow, you look hot!',
	            'You look nice!',
	            'Hi, sexy!'
	        ]
		},
		updateInterval: 30000,
		fadeSpeed: 4000
	},

	// Define required scripts.
	getScripts: function() {
		return ['moment.js'];
	},

	// Define start sequence.
	start: function() {
		Log.info('Starting module: ' + this.name);

		this.lastComplimentIndex = -1;

		// Schedule update timer.
		var self = this;
		setInterval(function() {
			self.updateDom(self.config.fadeSpeed);
		}, this.config.updateInterval);
	},


	/* randomIndex(compliments)
	 * Generate a random index for a list of compliments.
	 *
	 * argument compliments Array<String> - Array with compliments.
	 *
	 * return Number - Random index.
	 */
	randomIndex: function(compliments) {
		if (compliments.length === 1) {
			return 0;
		}

		var generate = function() {
			return Math.floor(Math.random() * compliments.length);
		};

		var complimentIndex = generate();

		while (complimentIndex === this.lastComplimentIndex) {
			complimentIndex = generate();
		}

		this.lastComplimentIndex = complimentIndex;

		return complimentIndex;
	},

	/* complimentArray()
	 * Retrieve an array of compliments for the time of the day.
	 *
	 * return compliments Array<String> - Array with compliments for the time of the day.
	 */
	complimentArray: function() {
		var hour = moment().hour();

		if (hour >= 3 && hour < 12) {
			return this.config.compliments.morning;
		} else if (hour >= 12 && hour < 17) {
			return this.config.compliments.afternoon;
		} else {
			return this.config.compliments.evening;
		}
	},

	/* complimentArray()
	 * Retrieve a random compliment.
	 *
	 * return compliment string - A compliment.
	 */
	randomCompliment: function() {
		var compliments = this.complimentArray();
		var index = this.randomIndex(compliments);

		return compliments[index];
	},

	// Override dom generator.
	getDom: function() {
		var complimentText = this.randomCompliment();

		var compliment = document.createTextNode(complimentText);
		var wrapper = document.createElement("div");
		wrapper.className = 'thin xlarge bright';
		wrapper.appendChild(compliment);

		return wrapper;
	}

});
