var PetDAO = (function () {
    var resourcePath = "rest/pets/";
    //var peopleID = atob(localStorage.getItem('peopleID'));
    var peopleID = 1;
    var requestByAjax = function (data, done, fail, always) {
        done = typeof done !== 'undefined' ? done : function () {};
        fail = typeof fail !== 'undefined' ? fail : function () {};
        always = typeof always !== 'undefined' ? always : function () {};

        let authToken = localStorage.getItem('authorization-token');
        if (authToken !== null) {
            data.beforeSend = function (xhr) {
                xhr.setRequestHeader('Authorization', 'Basic ' + authToken);
            };
        }

        $.ajax(data).done(done).fail(fail).always(always);
    };

    function PetDAO() {
        this.listPetsByPeopleID = function (peopleID,done, fail, always) {
            requestByAjax({
                url: resourcePath + 'people' + peopleID,
                type: 'GET'
            }, done, fail, always);
        };

        this.listAll = function (done, fail, always) {
            requestByAjax({
                url: resourcePath,
                type: 'GET'
            }, done, fail, always);
        };

        this.addPet = function (pet, done, fail, always) {
            requestByAjax({
                url: resourcePath,
                type: 'POST',
                data: pet
            }, done, fail, always);
        };

        this.modifyPet = function (pet, done, fail, always) {
            requestByAjax({
                url: resourcePath + pet.id,
                type: 'PUT',
                data: pet
            }, done, fail, always);
        };

        this.deletePet = function (id, done, fail, always) {
            requestByAjax({
                url: resourcePath + id,
                type: 'DELETE',
            }, done, fail, always);
        };
    }

    return PetDAO;
})();