// dashboard.js
let courseData;
function show_user_data(user_data, course_brief_data_list){
    courseData = {}
    for (let i=0;i<course_brief_data_list.length;i++){
        courseData[course_brief_data_list[i]._id] = {}
    }
    for (let i=0;i<course_brief_data_list.length;i++){
        course_brief_data = course_brief_data_list[i]
        console.log(course_brief_data)
        courseData[course_brief_data._id]._id = course_brief_data._id;
        courseData[course_brief_data._id].title = course_brief_data.name;
        courseData[course_brief_data._id].chapters = course_brief_data.chapters;
        courseData[course_brief_data._id].image_url = course_brief_data.image_url;
        courseData[course_brief_data._id].description = course_brief_data.description;
        courseData[course_brief_data._id].created_at = course_brief_data.created_at;
        courseData[course_brief_data._id].updated_at = course_brief_data.updated_at;
    }
    for (var course in courseData){
        courseData[course].chapters = courseData[course].chapters
        console.log(courseData[course])
    }
}
function openCourseProgress(courseId) {
    const course = courseData[courseId];
    if (!course) return;
    fetch(`/dashboard/get_course_progress`, {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json'
        },
        body: JSON.stringify({course_id: courseId})
    }).then(response => response.json())
    .then(data => {
        // console.log(data)
        /*
        course_last_study_date: "2025-09-06"
        course_put_in_date: "2025-09-06"
        course_total_study_time:0
        lesson_processs:Array(1): 
        (3) [Array(0), '基础算法', '二分']
        material_id:"68bacdfadf5aeae0912f7f18"
        user_uuid: $binary: {base64: 'r4hz5J1JSWe1hKJqXnAgwQ==', subType: '04'}

        */
        course.course_last_study_date = data.data.course_last_study_date;
        course.course_put_in_date = data.data.course_put_in_date;
        course.course_total_study_time = data.data.course_total_study_time;
        course.lesson_processs = data.data.lesson_processs;
        course.material_id = data.data.material_id;
        course.user_uuid = data.data.user_uuid;
        document.getElementById('course-title').textContent = course.title;
        ///////////////////////// course.progress;还没有计算
        document.getElementById('progress').textContent = course.progress;
                // 更新章节列表
        const chapterList = document.getElementById('chapter-list');
        chapterList.innerHTML = '';  // 清空之前的章节

        course.chapters.forEach(chapter => {
            const chapterItem = document.createElement('li');
            chapterItem.classList.add('chapter-item');
            
            const chapterTitle = document.createElement('div');
            chapterTitle.classList.add('chapter-title');
            chapterTitle.textContent = chapter.chapter_name;
            chapterItem.appendChild(chapterTitle);

            // 创建子章节
            if (chapter.lessons && chapter.lessons.length > 0) {
                const subChapterList = document.createElement('ul');
                subChapterList.classList.add('sub-chapter-list');

                chapter.lessons.forEach(subChapter => {
                    const subChapterItem = document.createElement('li');//课时层级
                    subChapterItem.classList.add('sub-chapter-item');
                    subChapterItem.textContent = subChapter.lesson_name;
                    // 查找学生进度
                    lesson_score_text_content = ""
                    for(let i = 0; i < course.lesson_processs.length; i++) {
                        if (course.lesson_processs[i][2] == subChapter.lesson_name && course.lesson_processs[i][1] == chapter.chapter_name) {//确定lesson_id对应正确
                            ///////////////////////////////////////////
                            //这里之后要做lesson的各个step的进度和得分
                            ////////////////////////////////////////////
                            if (course.lesson_processs[i].length<=3){break;}
                            for (let j =0; j< course.lesson_processs[i][3].length;j++){
                                if (isObject(course.lesson_processs[i][3][j]))course.lesson_processs[i][3][j]=course.lesson_processs[i][3][j]['data']
                                lesson_score_text_content+=course.lesson_processs[i][3][j]+';'
                            }
                            // console.log('-------------------')
                            // subChapterItem.textContent += 
                            // console.log(course.lesson_processs[i][0])
                            // lesson_chapters_progress = course.lesson_processs[i][0];//寻找对应的每一个章节的进度
                            // for (let j=0; j<lesson_chapters_progress.length;j++){
                            //     chapter_progress = lesson_chapters_progress[j]
                            //     if(chapter_progress.title == subChapter){
                            //         subChapterItem.textContent += ("（已"+(chapter_progress.is_rebuttal?"申辩" : "完成")+" 得分"+ (chapter_progress.is_rebuttal?chapter_progress.rebuttal_score : chapter_progress.score) +"）");
                            //     }
                            // }
                            // if (course.lesson_processs[i][0].length === 1) {
                            //     subChapterItem.classList.add('completed');
                            // }
                            break;
                        }
                    }
                    if (lesson_score_text_content!=""){lesson_score_text_content = '  ('+lesson_score_text_content+')'}
                    subChapterItem.textContent+=lesson_score_text_content
                    // 添加点击事件跳转到学习页面
                    subChapterItem.addEventListener('click', () => {
                        const courseId = encodeURIComponent(course._id); // 对课程名称进行编码
                        const url = `/desktop_nouser/${courseId}/${chapter.chapter_name}/${subChapter.lesson_name}`;
                        window.location.href = url;  // 跳转到该学习页面
                    });

                    subChapterList.appendChild(subChapterItem);
                });

                chapterItem.appendChild(subChapterList);

                // 添加点击事件切换子章节显示
                chapterItem.addEventListener('click', () => {
                    chapterItem.classList.toggle('open');
                });
            }

            chapterList.appendChild(chapterItem);
        });
    })
    .catch(error => {
        console.error('Error:', error);
    });




    // 打开滑出卡片
    document.getElementById('courseProgress').classList.add('open');
}

function closeCourseProgress() {
    // 关闭滑出卡片
    document.getElementById('courseProgress').classList.remove('open');
}

function isObject(value) {
  return Object.prototype.toString.call(value) === '[object Object]';
}

function btn_view(event, courseId) {
    event.stopPropagation();  // 阻止事件冒泡
    // 打开课程详情页面
    const url = `/course/${courseId}`;
    window.location.href = url;
}