// ==UserScript==
// @name         微知库网课助手
// @namespace    http://tampermonkey.net/
// @version      0.32
// @description  支持微知库视频·文档·PPT·图像等任务自动观看，自动跳转下一章 
// @author       lodge
// @match        http://*.36ve.com/?q=items/student/study/*
// @match        http://*.cavtc.cn/?q=items/student/study/*
// @match        http://wzk.36ve.com/Student/learning-content/index?tcourseId=*
// @match        http://wzk.36ve.com/Student/learning-content/learning?resource_id=*
// @grant        unsafeWindow
// @grant        GM_setValue
// @grant        GM_getValue
// @require      http://code.jquery.com/jquery-3.4.1.js
// @run-at       document-end
// @downloadURL none
// ==/UserScript==

'use strict';

var window = unsafeWindow
var url = location.pathname

var setting = {
    //时间单位均为毫秒！
    viedo_wait_time: 7000 //等待页面加载的延迟，时间过小容易导致无法自动开始播放
    , jump_time: 3000 //检测视频播放完成的时间，小于3000可能会导致没看完课就跳转
    , unfold_time: 20000 //展开章节的等待时间，若课程比较多，可以调大点
    , success_check_time: 3000 //任务完成检测等待的时间，机子性能差请适当调高，但会增加刷课时间
}

var chapter_num
var $next_course
function init() {
    setting.div = $(
        '<div style="width: 300px; border: 3px hidden #000000; font-size: 20px; text-align: center; background-color: rgba(135,216,64,0.70); top: 30px; color: #000000; position: fixed; right: 30px;">' +
        '  <div>微知库网课助手</div>' +
        '  <br>' +
        '  <div style="font-size: 15px">温馨提示：必须启用本网站的Flash功能，否则会出现视频看完，进度不走的情况！</div>' +
        '  <br>' +
        '  <div>v0.3版本更新</div>' +
        '  <div style="font-size: 15px">' +
        '    <p>新增HTML5视频支持</p>' +
        '    <p>新增四倍加速（仅HTML5）</p>' +
        '  </div>' +
        '  <br>' +
        '  <div>' +
        '    <div style="font-size: 15px">如需反馈bug，或提交新功能，请加群618981721</div>' +
        '    <a href="https://jq.qq.com/?_wv=1027&k=5bH9G48" target="_blank" style="font-size: 20px; color: blue; text-decoration: underline;">点我一键加群</a> </div>' +
        '  <hr>' +
        '  <button name="clean" type="button">清空日志</button>' +
        '  <div id="log" style="overflow-y: auto;font-size: 20px;color: red;white-space: pre"></div>' +
        '</div>'

    ).appendTo('body').on('click', 'button', function () {
        var name = $(this).attr('name')
        // console.log(name)
        if (name == 'clean') {
            $('#log').html('')
        }
    }).end()
}
init()
if (url == '/Student/learning-content/index') {
    GM_setValue('is_studying', 'false')
    open_chapter()
    setTimeout(() => {
        clearInterval()
        msg('log', '正在获取全部课程')
        var $course_list = $('#lhMenu').find('a[target="_blank"]')
        var $not_completed_list = []
        $.each($course_list, function (indexInArray, valueOfElement) {
            var $this = $(this)
            var $rate_span = $this.prevAll('.label.label-primary')
            var name = $this.find('.text-overflow').attr('title')
            var herf = $this.attr('href')
            if ($rate_span.length != 0) {
                var rate = $rate_span.html()
                $not_completed_list.push($this)
                // console.log('log', `当前课程 ${name}得分 ${rate}`)
            }
            // console.log(`名称${name},网址${herf}`)
        });
        msg('log', `获取到${$not_completed_list.length}节未完成课程`)

        var now = 0
        var total = $not_completed_list.length
        setInterval(() => {
            if (now <= total) {
                var is_studying = GM_getValue('is_studying', 'false')
                console.log(`is_studying${is_studying}`)
                var $this = $not_completed_list[now]
                var name = $this.find('.text-overflow').attr('title')
                var href = $this.attr('href')
                if (is_studying == 'false') {
                    msg('log', `即将学习：${name}`)
                    // GM_setValue('is_studying', true)
                    window.open(href, '_blank')
                    now = now + 1
                } else {
                    var last_c_course_name = $not_completed_list[now - 1].find('.text-overflow').attr('title')
                    console.log(`当前正在学习课程：${last_c_course_name}！`)
                }
            }
        }, setting.success_check_time);
    }, setting.unfold_time);
} else if (url == '/Student/learning-content/learning') {
    GM_setValue('is_studying', 'true')
    window.onbeforeunload = function (event) {
        GM_setValue('is_studying', 'false')
    };
    if (is_video() == true) {
        msg('log', '当前为视频')
        msg('log',`  ${setting.viedo_wait_time/1000}秒后开始播放`)
        setTimeout(() => {
            console.log('start playing')
            var playerId = $('[id^=ckplayer]').attr('id')
            if (playerId != undefined) {
                console.log('当前页面采用flash播放器！');
                var $player = CKobject.getObjectById(playerId)
                $player.videoPlay()
                $player.changeVolume(0)
                setInterval(() => {
                    var info = $player.getStatus()
                    var time = parseInt(info['time'])
                    var total_time = parseInt(info['totalTime'])
                    if (!info.hasOwnProperty('totalTime')) {
                        total_time = parseInt(info['totaltime'])
                    }
                    console.log(`当前秒${time}总秒${total_time}`)
                    if (time == total_time) {
                        console.log('当前视频观看完毕，跳转中')
                        msg('log', '当前视频观看完毕')
                        setTimeout(() => {
                            // GM_setValue('is_studying', false)
                            window.close()
                        }, 2000);
                    }
                }, setting.jump_time);
            } else {
                // $('video').attr('muted')='muted'
                // $('#log').click()
                console.log('当前页面采用html播放器！');
                $('[data-title=点击播放] canvas').click()
                var player = window.player
                console.log(player)
                player.volume = 0
                var totalTime = player.getMetaDate().duration
                // console.log(player.getMetaDate())
                setInterval(() => {
                    play_time = player.time
                    console.log(`当前秒${play_time}总秒${totalTime}`)
                    if (parseInt(play_time) == parseInt(totalTime)) {
                        console.log('当前视频观看完毕，跳转中')
                        msg('log', '当前视频观看完毕')
                        setTimeout(() => {
                            // GM_setValue('is_studying', false)
                            window.close()
                        }, 2000);
                    }
                }, setting.jump_time);
            }
        }, setting.viedo_wait_time);
    } else {
        setTimeout(() => {
            msg('log', '本节学习完毕')
            setTimeout(() => {
                // GM_setValue('is_studying', false)
                window.close()
            }, 2000);
        }, 1000);
    }
} else if (url == '/') {
    (function () {
        chapter_num = $('.listitem').length - 1
        $('[style="background:none;"]').remove()
        var $course = get_course()
        start_learning($course)
    })();
}
function open_chapter() {
    setInterval(() => {
        var $right = $('i[data-type="right"]')
        $right.click()
    }, 100);
    msg('log', `正在展开课程，时间${setting.unfold_time / 1000}秒`)

}

function check_player() {
    var playerId = $('[id^=ckplayer]').attr('id')
    if (playerId != undefined) {
        console.log('当前页面采用flash播放器！')
        return 'falsh'
    }
    else {
        console.log('html5')
        return 'html5'
    }
}
function msg(id, msg) {
    var myDate = new Date();
    var old = $(`#${id}`).html()
    var time = `${myDate.getHours()}:${myDate.getMinutes()}:${myDate.getSeconds()}`
    var newmsg = `${old}${time}${msg}` + '\n'
    // console.log(`id${id}msg${msg} oldmsg${old} new msg${newmsg}`)
    $(`#${id}`).html(newmsg)
}
function start_learning($course) {
    console.log('开始学习，名称：' + $course.text())
    console.log(`当前页面任务名称：${$('.current').find('.itemtitle').text()}待进入任务名${$course.text()}`);
    if ($('.current').find('.itemtitle').text() != $course.text()) {
        console.log('跳转中……')
        jump_to_course($course)
    } else {
        console.log('当前页面是正确的课程')
    }
    if (is_video()) {
        console.log('当前是视频')
        msg('log',`   ${setting.viedo_wait_time/1000}秒后开始播放`)
        setTimeout(() => {
            console.log('start playing')
            var playerId = $('[id^=ckplayer]').attr('id')
            if (playerId != undefined) {
                console.log('当前页面采用flash播放器！');
                var $player = CKobject.getObjectById(playerId)
                $player.videoPlay()
                $player.changeVolume(0)
                setInterval(() => {
                    var info = $player.getStatus()
                    var time = parseInt(info['time'])
                    var total_time = parseInt(info['totalTime'])
                    if (!info.hasOwnProperty('totalTime')) {
                        total_time = parseInt(info['totaltime'])
                    }
                    console.log(`当前秒${time}总秒${total_time}`)
                    if (time == total_time) {
                        console.log('当前视频观看完毕，跳转中')
                        find_next($course)
                        start_learning($next_course)
                    }
                }, setting.jump_time);
            } else {
                console.log('当前页面采用html播放器！');
                setTimeout(() => {
                    $('[data-title=点击播放] canvas').click()
                    var player = window.player
                    console.log(player)
                    player.volume = 0
                    $("p:contains('4倍速')").click()
                    var totalTime = player.getMetaDate().duration
                    // console.log(player.getMetaDate())
                    setInterval(() => {
                        play_time = player.time
                        console.log(`当前秒${play_time}总秒${totalTime}`)
                        if (parseInt(play_time) == parseInt(totalTime)) {
                            console.log('当前视频观看完毕，跳转中')
                            find_next($course)
                            start_learning($next_course)
                        }
                    }, setting.jump_time);
                }, 1000);
            }
        }, setting.viedo_wait_time);
    } else {
        console.log('当前是文档')
    }
}


function get_course() {
    var $course_list = $('.itemtitle')
    var $course
    // $course_list.css('border', '3px solid red')
    if ($('.current').length == 0) {
        $.each($course_list, function (indexInArray, valueOfElement) {
            var $this = $(this)
            // console.log('课程名字'+$this.text()+'分数'+$this.attr('score')+'播放地址'+$this.attr('href'))
            if (is_compleated($this)) {
                console.log('已找到' + $this.text())
                $course = $this
                return false
            }
            // console.log($(this).text())
        });
        return $course
    } else {
        $course = $('.current').find('.itemtitle')
        if (is_compleated($course)) {
            find_next($course)
            return $next_course
        } else {
            return $course
        }
        // $course = $('.current').find('.itemtitle')
        // console.log('已找到' + $course.text())
        // return $course
    }
}

function find_next($course) {
    // var $chapter = $course.parent().parent().parent().parent()
    var $chapter = $course.parent().parent().parent()
    var chapter_id = parseInt($chapter.attr('id').replace('listitem', ''))
    var next_par_id = chapter_id + 1
    // next chapter 有问题
    console.log('next par id is' + next_par_id)
    var $next_chapter = $(`#listitem${next_par_id}`)
    // var $next_chapter=$('.listitem'+next_par_id)
    // $chapter.css('border', '5px solid green')
    // $next_chapter.css('border', '5px solid red')
    if ($course.parent().is(':last-child')) {
        if ($chapter.parent().is(':last-child')) {
            console.log('已经是最后一章了')
            return null
        } else {
            $next_course = $next_chapter.find('.itemtitle:first')
            console.log('当前判断课程' + $next_course.text())
            if (is_compleated($next_course)) {
                find_next($next_course)
            } else {
                console.log('下一个任务为：' + $next_course.text())
                // return $next_course
            }
        }
    } else {
        $next_course = $course.parent().next().find('.itemtitle')
        console.log('当前判断课程' + $next_course.text())
        if (is_compleated($next_course)) {
            find_next($next_course)
        } else {
            console.log('该课程还未观看：' + $next_course.text())
            // return $next_course
        }

    }
}
function jump_to_course($course) {
    $course[0].click(function (e) {
        e.preventDefault();
    });
}
function is_video() {
    if ($('div[id^=videobox]').length != 0 || $('div[id^=video]').length != 0) {
        return true
    } else {
        return false
    }
}
function is_compleated($course) {
    if ($course.attr('score') == '10') {
        return true
    } else {
        return false
    }
}