define([
    "../app/Page",
    "../app/Router",
    "../model/classes/questions",
    "../model/widgets/TabbedQuestionBrowser",
    "dojo/_base/Deferred",
    "dojo/_base/declare",
    "dojo/_base/event",
    "dojo/_base/lang",
    "dojo/text!./templates/questions.html"
], function(Page, Router, questions, TabbedQuestionBrowser, Deferred, declare, event, lang, template) {
    return declare([Page],{
        templateString: template,
        startup: function() {
            if ( this._started ) { return; }
            this.inherited(arguments);
            this.questionBrowser = new TabbedQuestionBrowser({
                region: 'center',
                'class': 'orange',
                dndType: null,
                getItemActions: lang.hitch(this,function(item) {
                    var actions = {
                        Edit: {
                            callback: lang.hitch(this,"onEditQuestion"),
                            icon: 'Edit',
                            description: 'Edit question'
                        }
                    };
                    if ( !item.publicationDate ) {
                        lang.mixin(actions,{
                            Delete: {
                                callback: lang.hitch(this,"onDeleteQuestion"),
                                icon: 'Delete',
                                description: 'Delete question'
                            },
                            Publish: {
                                callback: lang.hitch(this,"onPublishQuestion"),
                                icon: 'Publish',
                                description: 'Publish question'
                            }
                        });
                    }
                    return actions;
                })
            },this.questionBrowser);
            this.questionBrowser.startup();
        },
        onNewQuestion: function() {
            Router.go(questions.getObjectPath('new'));
        },
        onDeleteQuestion: function(question) {
            if ( !confirm("Are you sure you want to delete this question?") ) {
                return;
            }
            questions.remove(question)
            .then(lang.hitch(this,function(){
                this.questionBrowser.removeItem(question);
                this.notify("Question deleted.");
            }),lang.hitch(this,function(err){
                this.notify(err.error,'error');
            }));
        },
        onEditQuestion: function(question) {
            Router.go(questions.getObjectPath(question));
        },
        onPublishQuestion: function(question) {
            if ( !confirm("After publication the question cannot be modified anymore, are you sure?") ) {
                return;
            }
            question.publicationDate = new Date();
            questions.save(question)
            .then(lang.hitch(this,function(){
                this.notify("Question published.");
            }),lang.hitch(this,function(err){
                this.notify(err.error,'error');
            }));
        }
    });
});