// ==UserScript==
// @name         链滴新消息提示
// @namespace    https://bbs.tampermonkey.net.cn/
// @version      0.1.2
// @description  链滴新消息提示
// @author       Wilsons
// @icon         https://ld246.com/images/favicon.png
// @background
// @connect      ld246.com
// @grant        GM_xmlhttpRequest
// @grant        GM_notification
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_info
// @grant        GM_log
// ==/UserScript==

/* ==UserConfig==
noticeConfig:
  delayTime:
    title: 检查消息时间间隔
    description: 多久获取一次消息（单位分钟）
    type: number
    default: 10
    min: 1
    max: 240
    password: false
    unit: 分钟
  enableNewDoc:
    title: 是否开启新帖子提示
    description: 开启
    type: checkbox
    default: true
  enableNewNotice:
    title: 是否开启新消息提示
    description: 开启
    type: checkbox
    default: true
  token:
    title: 链滴Token
    description: 在链滴 设置 - 账号 中找到 API Token
    type: text
    default: 
    min: 3
    max: 50
    password: false
 ==/UserConfig== */

  /////////////////// 主流程 ////////////////////////////
let token = '';
const main = async () => {
  let hasNewDoc=false, hasNewNotice=false, lastArticleId;
  const isFirstRun = getUnixTimestamp() > GM_getValue('firstRunEndTime', 0);
  if(isFirstRun) GM_setValue('firstRunEndTime', getTodayEndTimestamp());
  const lastRunTime = GM_getValue('lastRunTime') || 0;
  const delayTime = GM_getValue('noticeConfig.delayTime') || 0;
  if(!isFirstRun && getUnixTimestamp() - lastRunTime < delayTime * 60) return;
  GM_setValue('lastRunTime', getUnixTimestamp());
  token = GM_getValue('noticeConfig.token');
  if(!token) {
    if(isFirstRun) shownNotification('请先配置Token，方法：在链滴 设置 - 账号 中找到 API Token', ()=>{
      window.open('https://ld246.com/settings/account');
    });
    return;
  }
  lastArticleId = GM_getValue('lastArticleId');
  if(!lastArticleId) {
    lastArticleId = await getLastArticleId();
    GM_setValue('lastArticleId', lastArticleId);
  }
  
  const enableNewDoc = GM_getValue('noticeConfig.enableNewDoc');
  if(enableNewDoc) {
    const aid = await getLastArticleId();
    if(aid !== lastArticleId) {
      hasNewDoc = true;
      GM_setValue('lastArticleId', aid);
    }
  }
  const enableNewNotice = GM_getValue('noticeConfig.enableNewNotice');
  if(enableNewNotice) {
    const num = await getNoticeNums();
    if(num) hasNewNotice = true;
  }

  if(hasNewDoc && hasNewNotice) {
    shownNotification('有新帖发布和有新消息！', ()=>{
      window.open('https://ld246.com/notifications/commented');
    });
  } else if(hasNewDoc) {
    shownNotification('有新帖发布！', ()=>{
      window.open('https://ld246.com/');
    });
  } else if(hasNewNotice) {
    shownNotification('您有新的消息', ()=>{
      window.open('https://ld246.com/notifications/commented');
    });
  }
};

// 启动主函数
main();
setInterval(()=>{
  main();
}, 60000);

/////////////////// 辅助函数 ////////////////////////////
async function getLastArticleId() {
  try{
    // see https://ld246.com/article/1488603534762
    const result = await fetchUrl('https://ld246.com/api/v2/articles/latest?p=1');
    const json = JSON.parse(result.text);
    const aid = json?.data?.articles[0]?.oId;
    return aid;
  }catch(e) {
    console.log(e);
    GM_log(`《${GM_info.script.name}》脚本异常：${e}`, "warn");
    return 0;
  }
}
  async function getNoticeNums() {
  try{
    // see https://ld246.com/article/1488603534762
    const result = await fetchUrl('https://ld246.com/api/v2/notifications/unread/count');
    const json = JSON.parse(result.text);
    const nums = Object.values(json?.data) || [];
    const sum = nums.reduce((acc, curr) => acc + curr, 0);
    return sum;
  }catch(e) {
    console.log(e);
    GM_log(`《${GM_info.script.name}》脚本异常：${e}`, "warn");
    return 0;
  }
}
function shownNotification(msg, callback) {
  GM_notification({
      title: `《${GM_info.script.name}》脚本提示`,
      text: `${msg}`,
      requireInteraction: true,
      onclick: callback
  });
}
function fetchUrl(url, method = 'GET', data = null) {
    return new Promise((resolve, reject) => {
        GM_xmlhttpRequest({
            method: method,
            url: url,
            data: data,
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded',
                'Authorization': `token ${token}`,
            },
            onload: (response) => {
                if (response.status >= 200 && response.status < 400) {
                    resolve({text: response.responseText, status: response.status});
                } else {
                    reject(new Error(`网络请求状态码异常-${response.status}`));
                }
            },
            onerror: (error) => {
                reject(new Error(`网络请求异常-${error}`));
            }
        });
    });
}
function getUnixTimestamp() {
  return Math.floor(Date.now() / 1000);
}
function getTodayEndTimestamp() {
  const end = new Date();
  end.setHours(23, 59, 59, 999); // 设置为今天 23:59:59.999
  return Math.floor(end.getTime() / 1000);
}