(function () {
    "use strict";

    var streamApp = angular.module('streamApp');

    streamApp.directive('dateDirective', ['$timeout', DateDirective]);

    function DateDirective($timeout) {
        return {
            restrict: 'E',
            scope: {
                crud: '=',
                display: '=',
                callback: '='
            },
            templateUrl: '/App/Directives/dateDirective/dateDirective.html?v=6.0.0c',
            link: function (scope, element, attrs, tabsCtrl) {
                var date = scope.crud.date || new Date();
                scope.date = new Date(date);
                let daysOfMonth = getDaysOfMonth();
                changeType();
                scope.update = function () {
                    setValue();
                    setDisplay();
                };
                setDisplay();             

                scope.setDay = function () {
                    setType(0);
                };

                scope.setMonth = function () {
                    setType(1);
                };

                scope.setYear = function () {
                    setType(2);
                };

                scope.setDecade = function () {
                    setType(3);
                };

                function setType(dateType) {
                    scope.crud.dateType = dateType;
                    changeType();
                    setDisplay();
                };

                function changeType() {
                    scope.step = 1;
                    switch (scope.crud.dateType) {
                        case 0:
                            scope.min = 1;
                            scope.max = daysOfMonth[scope.date.getMonth()];
                            if (scope.date.getMonth() === 1) {
                                scope.max = isLeapYear(scope.date.getFullYear()) ? 29 : 28;
                            }
                            scope.minDisplay = scope.min;
                            scope.maxDisplay = scope.max;
                            $timeout(() => scope.value = scope.date.getDate(), 0);
                            break;
                        case 1:
                            scope.min = 1;
                            scope.max = 12;
                            scope.minDisplay = "January";
                            scope.maxDisplay = "December";
                            $timeout(() => scope.value = scope.date.getMonth() + 1, 0);
                            break;
                        case 2:
                            scope.min = getMinYear(scope.date.getFullYear());
                            scope.max = getMaxYear(scope.date.getFullYear());
                            scope.minDisplay = scope.min;
                            scope.maxDisplay = scope.max;
                            $timeout(() => scope.value = scope.date.getFullYear(), 0);
                            break;
                        default:
                            scope.step = 10;
                            scope.min = 1870;
                            scope.max = 2020;
                            scope.minDisplay = scope.min;
                            scope.maxDisplay = scope.max;
                            $timeout(() => scope.value = getDecade(scope.date.getFullYear()), 0);
                    }
                }


                function setDisplay() {
                    scope.display = labelDate(scope.date, scope.crud.dateType);
                    scope.crud.date = scope.date;
                }

                function setValue() {
                    switch (scope.crud.dateType) {
                        case 0:
                            scope.date.setDate(scope.value);
                            break;
                        case 1:
                            scope.date.setMonth(scope.value - 1);
                            break;
                        case 2:
                            scope.date.setYear(scope.value);
                            break;
                        default:
                            let year = scope.date.getFullYear();
                            let lastDigit = parseInt(year.toString().substring(3));
                            year = parseInt(scope.value) + lastDigit;
                            scope.date.setYear(year);
                    }
                }

                function getMaxYear(year) {
                    let intYear = parseInt(year);
                    let currentYear = new Date().getFullYear();
                    if (intYear === currentYear) return currentYear;
                    let modYear = intYear % 10;
                    if (!modYear) return intYear + 10;
                    return intYear + 10 - modYear;
                }

                function getMinYear(year) {
                    let intYear = parseInt(year);
                    let currentYear = new Date().getFullYear();
                    let modYear = intYear % 10;
                    if (intYear === currentYear) return currentYear - 10 - modYear;
                    return modYear ? intYear - modYear : intYear;
                }

                function isLeapYear(year) {
                    let intYear = parseInt(year);
                    return !(intYear % 4) && intYear % 100;
                }
            }
        };
    }

}());