/**
 * scrollWindowHeight
 *
 *
 * author: lukaszkurasinski
 * Date: 23.11.2016
 * Require: jsClass,basePlugin
 * @module plugins
 * @class scroll-window-height
 */


define('plugins/scroll-window-height', function (require){
    var BasePlugin = require('common/basePlugin'),
        jsClass = require('adapter/jsClass'),
        dom = require('adapter/dom'),
        enumerable = require('adapter/enumerable');

    var scrollWindowHeight = jsClass.Class(BasePlugin,{

        constructor: function(modId, name, subname, options){

            var defaults = {
                delay: 2000
            };

            this.settings = enumerable.defaults(options, defaults);

            scrollWindowHeight.$super.call(this, modId, name, subname, options);

            this.context = dom.find('#'+modId);

            dom.on(this.context,'click', this.handleClick.bind(this));

            dom.on(window,'scroll', this.hideButton.bind(this));

            this.init();

        },
        init: function () {

            var offset = window.pageYOffset;

            if (offset < 100) {
                this.delay();
            }

        },

        delay: function() {

            var self = this;

            setTimeout(function() {
                self.showButton()
            }, this.settings.delay);

        },

        showButton: function() {
            dom.show(this.context, true);
        },

        hideButton: function() {
            dom.hide(this.context, true);
        },

        handleClick: function(e){

            e.preventDefault();

            var offset = window.innerHeight*0.8;

            $('body').velocity("scroll", {duration: 1000, offset: offset});

            dom.hide(this.context, true);

        }

    });

    return scrollWindowHeight;

});