// 判断是否为移动端
function isMobile() {
  if (window.navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i)) {
    return true; // 移动端
  } else {
    return false; // PC端
  }
}

// 文章图片灯箱
window.ViewImage && ViewImage.init('.post-content img');

// 激活返回顶部插件 
$(function () {
  $.scrollUp({
    animation: 'fade',
    scrollImg: true
  });
});

// loader定时器
$(document).ready(function () {
  setTimeout(function () {
    $("#loader").addClass("hide");
  }, 30000);
});
// 点击进入按钮
$("#closeloader").click(function () {
  $("#loader").addClass("hide");
});
// nav栏样式调整
$('#libabys').first().attr("style", "margin-left: -5px");

$('#libabys').eq(1).attr("style", "margin-left: -5px");
// 友链列表版样式调整
$('.itp-index:odd').attr("style", "float: right;width:48%;");

//文章图片懒加载
lazyLoadInit({
  // coverColor: "white",
  // coverDiv: "<div style='display: flex; justify-content: center; align-items: center; height: 200px; color: #000000;'><span>优世界·一个记录生活点滴的小站</span></div>",
  offsetBottom: 800,
  offsetTopm: 800,
  showTime: 1100
});

async function loadBarrager() {
  try {
    const commentsData = await initArtalkAndGetComments();
    if (commentsData) {
      await createBarragerFromArtalk(commentsData);
    }
  } catch (error) {
    console.error('加载弹幕时发生错误:', error);
  }
}

// 异步初始化 Artalk 并获取评论数据
function initArtalkAndGetComments() {
  return new Promise((resolve, reject) => {
    Artalk.use((ctx) => {
      ctx.on('list-loaded', () => {
        console.log('评论列表加载完毕');
        const commentsData = ctx.getComments();
        if (commentsData) {
          resolve(commentsData);
          // console.log(commentsData);
        } else {
          reject('获取评论数据失败');
        }
      });
    });

    Artalk.init({
      el: '#Comments',                // 绑定元素的 Selector
      server: 'https://artalk.usj.cc',  // 后端地址
      site: '优世界',             // 你的站点名
      flatMode: true,
      emoticons: '/emotion/OwO.json'
    });
  });
}

// 异步创建弹幕
async function createBarragerFromArtalk(commentsData) {
  const looperTime = 1000;  // 每条弹幕的发送间隔，单位毫秒
  const flattenedComments = flattenComments(commentsData);
  const totalComments = flattenedComments.length;
  let currentIndex = 0;

  // 初始化弹幕插件
  let barrage = new Barrage.default({
    el: 'body',
    backColor: "#000000b5",
    fontSize: "14px",
    isLeft: true,
    speed: 0,
    height: "33px"
  });

  if (totalComments !== 0) {
    while (currentIndex < totalComments) {
      const currentComment = flattenedComments[currentIndex];
      const barragerItem = {
        headImg: "https://cravatar.cn/avatar/"+currentComment.email_encrypted + "?s=33" || 'static/default-avatar.png',
        content: stripHTML(currentComment.content_marked) || 'No comment',
        href: currentComment.link || '#',
        speed: 10
      };

      // 发送弹幕
      barrage.start(barragerItem.content, {
        speed: barragerItem.speed,
        headImg: barragerItem.headImg,
        speed: 35
      });

      currentIndex++;
      await delay(looperTime);  // 等待指定的时间再发送下一条弹幕
    }
  }
}

// 延迟函数，返回一个 Promise，用于等待指定的毫秒数
function delay(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

// 去除 HTML 标签的函数
function stripHTML(html) {
  return html.replace(/<\/?[^>]+(>|$)/g, "");
}

// 展平评论数据结构的函数
function flattenComments(comments) {
  let result = [];
  comments.forEach(function (comment) {
    result.push(comment);
    if (comment.children && comment.children.length > 0) {
      result = result.concat(flattenComments(comment.children));
    }
  });
  return result;
}

// 调用异步的弹幕加载函数
if (document.querySelector("#Comments") && !isMobile()) {
  loadBarrager()
}

function getCurrentTheme() {
  var theme = document.documentElement.getAttribute('data-theme');
  if (!theme) {
    theme = 'light';
  }
  return theme;
}

function applyTheme(theme) {
  document.documentElement.setAttribute('data-theme', theme);
  try {
    localStorage.setItem('theme', theme);
  } catch (e) {}
}

function updateThemeToggle(theme) {
  var button = document.getElementById('theme-toggle');
  if (theme === 'dark') {
    if (button) {
      button.textContent = '日间';
    }
  } else {
    if (button) {
      button.textContent = '夜间';
    }
  }
}

function toggleTheme() {
  var current = getCurrentTheme();
  var next = current === 'dark' ? 'light' : 'dark';
  applyTheme(next);
  updateThemeToggle(next);
  if (window.Artalk && window.Artalk.get) {
    try {
      var ctx = Artalk.get('#Comments');
      if (ctx && ctx.setDarkMode) {
        ctx.setDarkMode(next === 'dark');
      }
    } catch (e) {}
  }
}

document.addEventListener('DOMContentLoaded', function () {
  var theme = getCurrentTheme();
  updateThemeToggle(theme);
  var button = document.getElementById('theme-toggle');
  if (button) {
    button.addEventListener('click', toggleTheme);
  }
  var avatarWrapper = document.querySelector('.head_author_img');
  var avatarTip = document.querySelector('.avatar-theme-tip');
  if (avatarWrapper) {
    avatarWrapper.style.cursor = 'pointer';
    avatarWrapper.addEventListener('click', toggleTheme);
  }
  if (avatarTip) {
    avatarTip.classList.add('is-visible');
    var hideOnce = function () {
      avatarTip.classList.add('is-hidden');
    };
    setTimeout(hideOnce, 9000);
    if (avatarWrapper) {
      avatarWrapper.addEventListener('click', hideOnce);
    }
  }
});

// 代码复制功能
function initCodeCopy() {
  var codeBlocks = document.querySelectorAll('.highlight');
  codeBlocks.forEach(function(block) {
    if (block.querySelector('.copy-code-btn')) return;

    var btn = document.createElement('button');
    btn.className = 'copy-code-btn';
    btn.innerHTML = '<i class="ri-file-copy-line"></i>';
    block.appendChild(btn);

    btn.addEventListener('click', function() {
      var code = block.querySelector('code').innerText;
      navigator.clipboard.writeText(code).then(function() {
        btn.innerHTML = '<i class="ri-check-line"></i>';
        setTimeout(function() {
          btn.innerHTML = '<i class="ri-file-copy-line"></i>';
        }, 2000);
      }).catch(function(err) {
        console.error('Failed to copy: ', err);
        btn.innerText = 'Error';
      });
    });
  });
}

// 页面加载完成后初始化
document.addEventListener('DOMContentLoaded', function() {
  initCodeCopy();
});