/*global define */
define(['jquery', 'underscore', 'backbone', 'bootstrap', 'recaptcha', 'text!templates/loading.html'], 				
	function($, _, Backbone, BootStrap, Recaptcha, LoadingTemplate) {
	'use strict';
	
	// Build the main header view of the application
	var LdapView = Backbone.View.extend({

		el: '#Content',
		
		template: null,
		
		loadingTemplate: _.template(LoadingTemplate),
		
		containerTemplate: '<article><div class="container"><div class="row-fluid"><div id="DynamicContent" class="text-left"></div></div></div></article>',
				
		ldapwebUrl: null,
		
		ldapwebQueryString:  "?cfg=metacatui",
		
		stage:  null,

		initialize: function () {
			
		},
				
		render: function () {
			
			// look up the url from the main application model
			this.ldapwebUrl = MetacatUI.appModel.get('ldapwebServiceUrl');
			
			// request a smaller header
			MetacatUI.appModel.set('headerType', 'default');
			
			// show the loading icon
			this.showLoading();
			
			// do we have a specific stage?
			var completeUrl = this.ldapwebUrl + this.ldapwebQueryString;
			if (this.stage) {
				completeUrl += "&stage=" + this.stage;
			}
			
			// load all the ldapweb content so all the js can run in what gets loaded
			var viewRef = this;
			this.$el.html(viewRef.containerTemplate);
			var contentArea = this.$("#DynamicContent");
			contentArea.load(
					completeUrl,
					function() {						
						viewRef.show();
					});
			
			return this;
		},
		
		show: function(){
			var view = this;
			
			this.$el.hide();
			
			this.$el.fadeIn({
				duration: "slow",
				done: function(){
					//Add btn class
					view.$(":submit").addClass("btn");
					
					//Find the captcha container and captcha function, if it exists (requires captcha API key in Metacat)
					if((view.$("#captchaArea").length > 0) && (typeof showRecaptcha == "function")){
						//Make sure the link doesn't already exist, too
						if(view.$("#captchaArea").find("a").length == 0){
							var link = $(document.createElement("a")).text("Show code").addClass("pointer").on("click", function(){ showRecaptcha("captchaArea") });
							$("#captchaArea").append(link);
						}
					}
				}
			});
		},
		
		events: {
			"click input[type='submit']" : "submitForm"	
		},
		
		submitForm: function(event) {
			
			// which form?
			var form = $(event.target).parents("form");
			
			// get the form data before replacing everything with the loading icon!
			var formData = $(form).serialize()
			
			// show the loading icon
			this.showLoading();
			
			// ajax call to submit the given form and then render the results in the content area
			var viewRef = this;
			
			var requestSettings = {
					type: "POST",
					url: this.ldapwebUrl,
					data: formData,
					success: function(data, textStatus, jqXHR) {
						
						viewRef.$el.html(viewRef.containerTemplate);
						var contentArea = viewRef.$("#DynamicContent");
						contentArea.html(data);
						
						//Show the content
						viewRef.show();
					}
			}
			
			$.ajax(_.extend(requestSettings, MetacatUI.appUserModel.createAjaxSettings()));
			
			return false;
			
		},
		
		showLoading: function() {
			this.scrollToTop();
			this.$el.html(this.loadingTemplate());
		},
		
		scrollToTop: function() {
			$("html, body").animate({ scrollTop: 0 }, "slow");
			return false;
		}
				
	});
	return LdapView;		
});