// ==UserScript==
// @name         芯位网课刷课助手
// @version      1.0.1
// @description  芯位网课刷课助手脚本
// @match        https://teaching.51xinwei.com/*
// @icon         https://teaching.51xinwei.com/*
// @grant        none
// @require      https://lib.baomitu.com/jquery/3.6.0/jquery.js
// @run-at document-end
// @license AGPL-3.0 license
// @namespace https://greasyfork.org/users/797839
// @downloadURL none
// ==/UserScript==



(function() {
    'use strict';



    const body = document.querySelector('body');


    let obServer = new MutationObserver(handler);

    const options = {
        childList: true
    }

    obServer.observe(body, options)




})();

function videoMute() {
    let v = document.querySelector("video")
    v.muted = true
}

function start(){
    setTimeout(videoMute,3500)
}

function handler(mutationRecordList) {
    for (let i = 0; i < mutationRecordList.length; i++) {
        let addedNodes = mutationRecordList[i].addedNodes
        if (addedNodes) {
            for (let i = 0; i < addedNodes.length; i++) {
                if ((addedNodes[i].id == 'root' && addedNodes[i].childNodes.length>0) || addedNodes[i].id.indexOf('layui-layer')>=0) {
                    start()
                }
                let innerText = addedNodes[i].innerText
                if (innerText && innerText.indexOf('学习下一课节') >= 0) {
                    obsClick('.layui-layer.layui-layer-dialog .layui-layer-btn0');
                    break;
                }
            }
        }
    }

    obsDocumentPage()
}

function obsDocumentPage() {
    obsText('#page_learn_courseware_document .transcode-file-area.text-center', '该文档类型不支持预览，请点击 这里 下载文档')
        .then((res) => {
        let coursewareMenuItem = document.querySelectorAll('#menu_tarr_content .courseware_menu_item.pull-left.ng-scope')
        if (coursewareMenuItem.length > 2) {
            let activeCoursewareMenuItem = document.querySelector('#menu_tarr_content .courseware_menu_item.pull-left.ng-scope.active')
            let activeCoursewareMenuItemText = activeCoursewareMenuItem.innerText
            for (let i = 0; i < coursewareMenuItem.length; i++) {
                if (activeCoursewareMenuItemText == coursewareMenuItem[i].innerText) {
                    let next = i + 1
                    coursewareMenuItem[next].click()
                    if (coursewareMenuItem.length > next+1) {
                        obsDocumentPage()
                        return
                    }
                    break;
                }
            }
        }

        let courseChapterItem = document.querySelectorAll('.course_chapter_item.user-no-select.ng-scope')
        let activeItem = document.querySelector('.course_chapter_item.user-no-select.ng-scope.active')

        let activeItemText = activeItem.innerText
        for (let i = 0; i < courseChapterItem.length; i++) {
            if (activeItemText == courseChapterItem[i].innerText) {
                courseChapterItem[i + 1].children[1].click()
                break;
            }
        }
    })

}

let obsClickTimer = null

function obsClick(selector) {
    return new Promise((resolve, reject) => {
        let startExecutionTime = new Date().getTime()
        if (obsClickTimer) {
            clearInterval(obsClickTimer)
        }
        obsClickTimer = setInterval(() => {
            let target = document.querySelector(selector)
            if (target) {
                clearInterval(obsClickTimer)
                target.click()
                resolve({
                    element: selector,
                    operation: 'click'
                })
            } else {
                return
            }

            let executionTime = new Date().getTime()
            if (startExecutionTime - executionTime > 1000 * 10) {
                clearInterval(obsClickTimer)
                reject('超时')
            }
        }, 500)
    })
}

function activation() {
    const localStorage = window.localStorage;
    const activationCodeKey = 'xinwei_activation_code';
    let activationCode = localStorage.getItem(activationCodeKey)
    if (!activationCode) {
        const str ='%u8BF7%u8F93%u5165%u6FC0%u6D3B%u7801%uFF08%u6FC0%u6D3B%u7801%u4E24%u5143%u6C38%u4E45%uFF0C%u53EF%u8054%u7CFB%u5FAE%u4FE1%uFF1Awuwang1873%uFF09%uFF1A'
        let code = prompt(unescape(str), '');
        if (window.atob(code).indexOf('xinweijiaoyu') >= 0) {
            localStorage.setItem(activationCodeKey, code)
            alert(unescape('%u6FC0%u6D3B%u6210%u529F'))
        } else {
            alert(unescape('%u6FC0%u6D3B%u5931%u8D25'))
            return false
        }
    }
    return true
}

let obsTextTimer = null

function obsText(selector, text) {
    return new Promise((resolve, reject) => {
        let startExecutionTime = new Date().getTime()
        if (obsTextTimer) {
            clearInterval(obsTextTimer)
        }
        obsTextTimer = setInterval(() => {
            let target = document.querySelector(selector)
            if (target && target.textContent.trim() == text) {
                clearInterval(obsTextTimer)
                resolve(selector)
            } else {
                return
            }

            let executionTime = new Date().getTime()
            if (startExecutionTime - executionTime > 1000 * 10) {
                clearInterval(obsTextTimer)
                reject('超时')
            }
        }, 500)
    })
}

let listenerInt=setInterval(function(){listener()},10000);

function stopFunction(){
    clearInterval(listenerInt);
}

let learn_time_old = ''
function listener() {
    if (document.querySelector(".time_text")==null) {
     return
    }
    if (learn_time_old=='') {
        learn_time_old = document.querySelectorAll(".time_text")[1].innerText
        return
    }
    let learn_time = document.querySelectorAll(".time_text")[1].innerText
    if (learn_time_old==learn_time) {
        stopFunction()
        location.reload(true)
    }
    learn_time_old = learn_time
}