jQuery(function($) {

    'use strict';

    var _Blog = window._Blog || {};

    _Blog.typeit = function() {
        if (window.typeitMap) {
            for (let id in typeitMap) {
                if (Array.isArray(typeitMap[id])) {
                    const group = typeitMap[id];
                    (function typeone (i) {
                        if (i === group.length - 1) {
                            new TypeIt(`#${group[i]}`, {
                                strings: document.getElementById(`r${group[i]}`).innerHTML,
                            }).go();
                            return;
                        }
                        let instance = new TypeIt(`#${group[i]}`, {
                            strings: document.getElementById(`r${group[i]}`).innerHTML,
                            afterComplete: () => {
                                instance.destroy();
                                typeone(i + 1);
                            },
                        }).go();
                    })(0);
                } else {
                    new TypeIt(`#${id}`, {
                        strings: document.getElementById(`r${id}`).innerHTML,
                    }).go();
                }
            }
        }
    };

    _Blog.countdown = function() {
        if (window.countdownMap) {
            for (let id in countdownMap) {
              $(id).countdown(countdownMap[id], {elapse: true})
                .on('update.countdown', function(event) {
                  var $this = $(this).html(event.strftime(''
                    + '<span>%D</span> 天 <br />'
                    + '<span>%H</span> 时 '
                    + '<span>%M</span> 分 '
                    + '<span>%S</span> 秒'));
              });
          }
        }
    };

    _Blog.externalUrl = function() {
        $.expr[':'].external = function(obj) {
            return !obj.href.match(/^mailto\:/) &&
                (obj.hostname != location.hostname);
        };
        $('a:external').addClass('external');
        $(".external").attr('target', '_blank');

    }

    _Blog.changeTitle = function() {
        var currentTitle = document.title;
        window.onblur = function() {
            document.title = currentTitle;
        }
        window.onfocus = function() {
            document.title = currentTitle;
        }
    };

    _Blog.toggleTheme = function() {
        const currentTheme = window.localStorage && window.localStorage.getItem('theme');
        const isDark = currentTheme === 'dark';
        $('body').toggleClass('dark-theme', isDark);
        $('.theme-switch').on('click', () => {
            $('body').toggleClass('dark-theme');
            window.localStorage &&
                window.localStorage.setItem('theme', document.body.classList.contains('dark-theme') ? 'dark' : 'light', );
        });
    }

    _Blog.toggleMobileMenu = function() {
        $('.menu-toggle').on('click', () => {
            $('.menu-toggle').toggleClass('active');
            $('#mobile-menu').toggleClass('active');
        });
    }

    $(document).ready(function() {
        _Blog.toggleTheme();
        _Blog.countdown();
        _Blog.changeTitle();
        _Blog.toggleMobileMenu();
        _Blog.typeit();
    });
});