define([
    "../app/Page",
    "../app/Router",
    "../model/classes/surveyRuns",
    "../model/classes/surveys",
    "../widgets/LineWithActionsWidget",
    "dojo/_base/array",
    "dojo/_base/declare",
    "dojo/_base/lang",
    "dojo/when",
    "dojo/text!./templates/surveys.html"
], function(Page, Router, surveyRuns, surveys, LineWithActionsWidget, array, declare, lang, when, template) {
    return declare([Page],{
        templateString: template,
        startup: function() {
            if ( this._started ) { return; }
            this.inherited(arguments);
            this.draftsTab.set('title','Drafts (<span class="qedLoading"></span>)');
            this.publishedTab.set('title','Published (<span class="qedLoading"></span>)');
            this.refresh();
        },
        _onNewSurvey: function(){
            Router.go(surveys.getObjectPath('new'));
        },
        _onPublishSurvey:function(survey){
            if ( !confirm("After publication the survey cannot be modified anymore, are you sure?") ) {
                return;
            }
            survey.publicationDate = new Date();
            surveys.save(survey)
            .then(lang.hitch(this,function(){
                this.refreshDrafts();
                this.refreshPublished();
            }),lang.hitch(this,function(err){
                this.notify(err.error,'error');
            }));
        },
        _onDeleteSurvey:function(survey){
            if ( !confirm("Are you sure you want to delete this draft survey?") ) {
                return;
            }
            surveys.remove(survey)
            .then(lang.hitch(this,function(){
                this.refreshDrafts();
            }),lang.hitch(this,function(err){
                this.notify(err.error,'error');
            }));
        },
        _onEditSurvey:function(survey){
            Router.go(surveys.getObjectPath(survey));
        },
        _onPreviewSurvey:function(survey){
            Router.go(surveys.getPreviewPath(survey));
        },
        _onRunSurvey:function(survey){
            var surveyRun = surveyRuns.create();
            surveyRun.title = 'Run of "'+survey.title+'" of '+
                              (new Date().toString());
            surveyRun.survey = survey;
            surveyRuns.save(surveyRun)
            .then(lang.hitch(this,function(surveyRun){
                Router.go(surveyRuns.getObjectPath(
                    surveyRuns.getId(surveyRun)));
            }),lang.hitch(this,function(err){
                this.notify(err.error,'error');
            }));
        },
        refresh: function() {
            this.refreshDrafts();
            this.refreshPublished();
        },
        refreshDrafts: function() {
            this.draftsContainer.set('content','Loading draft surveys <span class="qedLoading"></span>');
            when(surveys.query({drafts:true}), lang.hitch(this,function(surveys) {
                this.draftsTab.set('title','Drafts ('+surveys.length+')');
                this.draftsContainer.set('content','');
                array.forEach(surveys,function(survey){
                    var w = new LineWithActionsWidget({
                        title: survey.title || '(unnamed)',
                        actions: [{
                            callback: lang.hitch(this,'_onPublishSurvey',survey),
                            properties: {
                                label: 'Publish',
                                tooltip: 'Publish survey',
                                icon: 'Publish'
                            }
                        },{
                            callback: lang.hitch(this,'_onPreviewSurvey',survey),
                            properties: {
                                label: 'Preview',
                                tooltip: 'Preview survey',
                                icon: 'Preview'
                            }
                        },{
                            callback: lang.hitch(this,'_onDeleteSurvey',survey),
                            properties: {
                                label: 'Delete',
                                tooltip: 'Delete survey',
                                icon: 'Delete'
                            }
                        },{
                            callback: lang.hitch(this,'_onEditSurvey',survey),
                            properties: {
                                label: 'Edit',
                                tooltip: 'Edit survey',
                                icon: 'Edit'
                            }
                        }]
                    });
                    this.draftsContainer.addChild(w);
                },this);
            }));
        },
        refreshPublished: function() {
            this.publishedContainer.set('content','Loading published surveys <span class="qedLoading"></span>');
            when(surveys.query({published:true}), lang.hitch(this, function(surveys) {
                this.publishedContainer.set('content','');
                this.publishedTab.set('title','Published ('+surveys.length+')');
                array.forEach(surveys,function(survey){
                    var w = new LineWithActionsWidget({
                        title: survey.title || "",
                        actions:[{
                            callback: lang.hitch(this,'_onPreviewSurvey',survey),
                            properties: {
                                label: 'Preview',
                                tooltip: 'Preview survey',
                                icon: 'Preview'
                            }
                        },{
                            callback: lang.hitch(this,'_onRunSurvey',survey),
                            properties: {
                                label: 'Run',
                                tooltip: 'Run survey',
                                icon: 'Forward'
                            }
                        }]
                    });
                    this.publishedContainer.addChild(w);
                },this);
            }));
        }
    });
});