(function () {
    "use strict";
    angular.module('shared')
        .factory('StudentsUtil', ['NameUtil', 'TeachersUtil', '_', function (NameUtil, TeachersUtil, _) {
            var service = {
                rosterFormatStudentName: rosterFormatStudentName,
                rosterSortableStudentName: rosterSortableStudentName,
                formatHomeroomTeacherName: formatHomeroomTeacherName,
                getShared: getShared,
                getHomeroom: getHomeroom,
                studentHasName: studentHasName,
            };
            return service;

            //Implementation
            function rosterFormatStudentName(student, byLastName) {
                return NameUtil.formatName(student.student_first_name, student.student_last_name, byLastName);
            }

            function rosterSortableStudentName(student, byLastName) {
                return NameUtil.formatUserName(student.student_first_name, student.student_last_name,
                    student.screen_name,
                    byLastName);
            }

            function formatHomeroomTeacherName(student) {
                TeachersUtil.formatTeacherName(student.homeroom_member_first_name, homeroom_member_last_name,
                    homeroom_member_username)
            }

            function getShared(students) {
                return _.filter(students, function (student) {
                    return student.is_shared;
                });
            }

            function getHomeroom(students) {
                return _.filter(students, function (student) {
                    return !student.is_shared;
                });
            }

            function studentHasName(student) {
                return NameUtil.hasName(student.student_first_name, student.student_last_name);
            }
        }])
})();