"use strict";

angular.module("vocabulary")
    .service("categoryValidationService", ["categoryApi",
        function (categoryApi) {
            function validateCategoryUpdate(newCategoryName){
                var errors = {};

                if(newCategoryName.length <= 0){
                    errors.shortName = true;
                }

                if(newCategoryName.length > 255){
                    errors.longName = true;
                }

                var regex = /^[a-zA-Z0-9\-\/ ]*$/;
                if(!regex.test(newCategoryName)){
                    errors.pattern = true;
                }
                return categoryApi.validateNewCategoryNameForUser(newCategoryName)
                    .then(function (isValid) {
                        if (!isValid) {
                           errors.duplicate = true;
                        }

                        if(Object.keys(errors).size() > 0) {
                            throw errors;
                        }
                    });
            }

            return {
                validateCategoryUpdate: validateCategoryUpdate
            };
        }]);