(function () {
    'use strict';
   
    //helper functionality for myforms
    var serviceId = 'myFormsService';
    angular.module('myforms').factory(serviceId, [myFormsService]);

    function myFormsService() {

        var currentForm,
            activityEntries;

        var service = {
            createFormFromTemplate: createFormFromTemplate,
            getCurrentForm: function () {
                return currentForm;
            },
            getCurrentActivityEntries: function () {
                return activityEntries;
            },
            setCurrentForm: function (form) {
                currentForm = form;
            },
            setCurrentActivityEntries: function (entries) {
                activityEntries = entries;
            }
        };

        return service;

        function getQuestionAnswers(template) {
            var questionAnswers = [];
            //go through all the questions and create a question / answer pair
            for (var i = 0; i < template.sections[0].questions.length; i++) {
                questionAnswers.push({
                    question: template.sections[0].questions[i],
                    answer: {}
                });
            }
            return questionAnswers;
        }

        //create a new form from its template
        function createFormFromTemplate(template, formId) {
            var form = {
                formType: template.formType,
                formTemplateId: template.id,
                name: template.name,
                title: template.title,
                description: template.description,
                iconUri: template.iconUri,
                backgroundColour: template.backgroundColour,
                fontColour: template.fontColour,
                highlightColour:template.highlightColour,
                sections: [
                    {
                        name: template.sections[0].name
                    }
                ],
                externalId: template.externalId,
                isFeedbackGivenAfterQuiz: template.isFeedbackGivenAfterQuiz,
                isFeedbackGivenDuringQuiz: template.isFeedbackGivenDuringQuiz,
                id: formId, //might be null
                //activity fields
                targetEntriesNumber: template.targetEntriesNumber,
                individualCanCreate: template.individualCanCreate,
                individualCanDelete: template.individualCanDelete,
                individualCanEdit: template.individualCanEdit,
                individualCanView: template.individualCanView
            };

            form.sections[0].questionAnswers = getQuestionAnswers(template);
            return form;
        }
    }
})();