// dashboard.js

function openCourseProgress(courseId) {
    const courseData = {
        'algorithm': {
            title: '算法分析与设计',
            progress: '50%',
            chapters: [
                {
                    title: '第一章: 算法基础',
                    subChapters: [
                        { title: '子章节1: 算法介绍', path: 'introduction' },
                        { title: '子章节2: 时间复杂度分析', path: 'time-complexity' }
                    ]
                },
                {
                    title: '第二章: 排序与查找',
                    subChapters: [
                        { title: '子章节1: 排序算法', path: 'sorting-algorithms' },
                        { title: '子章节2: 查找算法', path: 'searching-algorithms' }
                    ]
                },
                {
                    title: '第三章: 图算法',
                    subChapters: [
                        { title: '子章节1: 图的表示', path: 'graph-representation' },
                        { title: '子章节2: DFS 与 BFS', path: 'dfs-bfs' }
                    ]
                }
            ]
        },
        'data-structures': {
            title: '数据结构与算法',
            progress: '30%',
            chapters: [
                {
                    title: '第一章: 数组与链表',
                    subChapters: [
                        { title: '子章节1: 数组基础', path: 'array-basics' },
                        { title: '子章节2: 链表实现', path: 'linked-list' }
                    ]
                },
                {
                    title: '第二章: 栈与队列',
                    subChapters: [
                        { title: '子章节1: 栈的实现', path: 'stack-implementation' },
                        { title: '子章节2: 队列的应用', path: 'queue-application' }
                    ]
                },
                {
                    title: '第三章: 二叉树',
                    subChapters: [
                        { title: '子章节1: 二叉树的遍历', path: 'binary-tree-traversal' },
                        { title: '子章节2: 二叉查找树', path: 'binary-search-tree' }
                    ]
                }
            ]
        }
        // 可以继续添加其他课程的数据
    };

    // 获取对应课程的数据
    const course = courseData[courseId];
    if (!course) return;

    // 更新右侧滑出卡片的内容
    document.getElementById('course-title').textContent = course.title;
    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.title;
        chapterItem.appendChild(chapterTitle);

        // 创建子章节
        if (chapter.subChapters && chapter.subChapters.length > 0) {
            const subChapterList = document.createElement('ul');
            subChapterList.classList.add('sub-chapter-list');
            
            chapter.subChapters.forEach(subChapter => {
                const subChapterItem = document.createElement('li');
                subChapterItem.classList.add('sub-chapter-item');
                subChapterItem.textContent = subChapter.title;
                
                // 添加点击事件跳转到学习页面
                subChapterItem.addEventListener('click', () => {
                    const userId = 'userid'; // 这里可以动态传入当前用户ID
                    const courseName = encodeURIComponent(course.title); // 对课程名称进行编码
                    const subChapterPath = subChapter.path;  // 子章节路径
                    const url = `/desktop/${userId}/${courseName}/${subChapterPath}`;
                    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);
    });

    // 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');
}