script1.js

const courses = {
    'Structured Programming': {
        class: [
            { title: "Class 1: Playlist", link:" https://youtu.be/0_8dOzwShtc?si=Ld93CNMFi4OV8bMp" },
           { title: "Class 2: C_10", link: "https://youtu.be/irqbmMNs2Bo?si=8823wMycrCK2aScx" },
            { title: "Class 3: C again", link: "https://youtube.com/playlist?list=PLdo5W4Nhv31a8UcMN9-35ghv8qyFWD9_S&si=ionBqhFP80n33pZN" },
        ],
        notes: [
            { title: "C programming", link: "https://drive.google.com/file/d/1VouEbmz2Uf9pOxDxqcr6acfeLYll21PA/view?usp=sharing" },
            { title: "C more", link: "https://drive.google.com/file/d/1Db0Wg6Sw4w8hPLfr7JVNL68jac4HjcKt/view?usp=sharing" }
        ],
         books: [
            { title: "Teach Yourself C", link: "https://example.com/teach-yourself-c" },
            { title: "Effective Java", link: "https://example.com/effective-java" }
        // ],
        //  question: [
        // { title: "CT", link: "https://example.com/ct" },
        // { title: "Main Exam", link: "https://example.com/main-exam" }
         ]
    },
    'Discrete Mathematics': {
        class: [
            { title: "Class: Playlist", link: "https://youtube.com/playlist?list=PLU6SqdYcYsfJ27O0dvuMwafS3X8CecqUg&si=-uRHCvMXPgAoCCVC" }
        ],
        notes: [
            { title: "Discrete Mathematics Notes", link: "https://drive.google.com/file/d/1hkbJZjufwLg-7Sc9BSw_bN5LzzepMuWZ/view?usp=sharing" }
        ],
        books: [
            { title: "Discrete Mathematics and Its Applications", link: "https://example.com/discrete-maths" },
            { title: "Introduction to Graph Theory", link: "https://example.com/graph-theory" }
        ]
        //,
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Probability and Statistics for Engineers-I': {
        class: [
            { title: "Class 1: All", link: "https://youtube.com/playlist?list=PLU6SqdYcYsfLRq3tu-g_hvkHDcorrtcBK&si=Orvqa3MMdG9PvsgI" }
        ],
        notes: [
            { title: "Probability and Stats Notes", link: "https://drive.google.com/file/d/1B4hTbDBuTuInGK6UuhYdd9PB2F5bfGC6/view?usp=sharing" }
        ],
        books: [
            { title: "Introduction to Probability", link: "https://example.com/probability-book" },
            { title: "Statistics for Engineers", link: "https://example.com/statistics-book" }
        ]
        // ,
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Calculus and Analytical Geometry': {
        class: [
            { title: "Class 1: Graph", link: "https://youtu.be/C9TSePo6FKI?si=yaYJD9qUvaa3OZzc" }
        ],
        notes: [
            { title: "Math_1.1", link: "https://drive.google.com/file/d/10Y19LAAt2d9elbmDJj-8vuy3qENpyRvq/view?usp=sharing" },
            { title: "1st Assignment", link: "https://drive.google.com/file/d/10Y19LAAt2d9elbmDJj-8vuy3qENpyRvq/view?usp=sharing" },
            { title: "2nd Assignment", link: "https://drive.google.com/file/d/10Y19LAAt2d9elbmDJj-8vuy3qENpyRvq/view?usp=sharing" }
        ],
        books: [
            { title: "Calculus: Early Transcendentals", link: "https://example.com/calculus-book" },
            { title: "Analytical Geometry", link: "https://example.com/analytical-geometry-book" }
        ]
        // ,
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Soft Skill Communication': {
        class: [
            { title: "Class 1: Communication Skill", link: "https://www.youtube.com/watch?v=ADJAcyTq1us&list=PLWPirh4EWFpFIElSxplDlEhRDZHkBD-0n" },
            { title: "Class 2: Improve speaking", link: "https://www.youtube.com/watch?v=icudf_w_pqU&pp=ygUZc29mdCBza2lsbHMgY29tbXVuaWNhdGlvbg%3D%3D" }
        ],
        notes: [
            { title: "Communication Skill Notes", link: "https://drive.google.com/file/d/1J_LM9pdsNt40smtT-RRZYMHNs0xu6xBU/view?usp=sharing" },
           
        ]
        // books: [
        //     { title: "Eloquent JavaScript", link: "https://example.com/eloquent-js" },
        //     { title: "Learning Web Design", link: "https://example.com/learning-web-design" }
        // ],
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Technology and Society': {
        class: [
            { title: "Class 1: Microsoft PowerPoint", link: "https://youtu.be/bcl6YoZQfDM?si=D9ytYTRlG4yHqVAD" },
            { title: "Class 2: Microsoft Word", link: "https://youtu.be/QXu9AGTIxrM?si=t9D6SGHMkiXu1q9H" },
            { title: "Class 3: Microsoft Excel", link: "https://youtu.be/tvph9RuZvUg?si=Fk62YdocMe_1aonK" }
        ],
        notes: [
            { title: "Technology", link: "https://drive.google.com/file/d/10Y19LAAt2d9elbmDJj-8vuy3qENpyRvq/view?usp=sharing" }
        ],
        // books: [
        //     { title: "Eloquent JavaScript", link: "https://example.com/eloquent-js" },
        //     { title: "Learning Web Design", link: "https://example.com/learning-web-design" }
        // ],
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Introduction to Software Engineering': {
        class: [
            { title: "Class: All", link: "https://youtube.com/playlist?list=PLxCzCOWd7aiEed7SKZBnC6ypFDWYLRvB2&si=if6Au-Y0Y7UqgKtY" }
        ],
        notes: [
            { title: "Software Engineering Notes", link: "https://drive.google.com/file/d/183bIea5DkuwRrhtbIbuoOkCPelxMBgPC/view?usp=sharing" }
        ]
        // books: [
        //     { title: "Eloquent JavaScript", link: "https://example.com/eloquent-js" },
        //     { title: "Learning Web Design", link: "https://example.com/learning-web-design" }
        // ],
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Computer Organization': {
        class: [
            { title: "Class: Playlist", link: "https://youtube.com/playlist?list=PL5Rc9H5eTGY6MHqCKAarxhxqT7nipKgun&si=iT7jjCi6fINpuMmB" }
        ],
        notes: [
            { title: "Computer Organization Notes", link: "https://drive.google.com/file/d/1Q9AqPHQ7Gdz8qC203bsZi42Wxr1i9lSD/view?usp=sharing" }
        ],
        // books: [
        //     { title: "Computer Organization and Design", link: "https://example.com/computer-org-design" },
        //     { title: "Computer Systems: A Programmer's Perspective", link: "https://example.com/computer-systems" }
        // ],
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'Bangla Literature': {
        class: [
            { title: "Bengali ", link: "https://www.youtube.com/watch?v=NAnriECaP30&list=PLjpitam1EJN3o7ujU8pDxYb3kTVOyazge" },
            { title: "Postmaster", link: "https://youtu.be/Z5__gMAwiN4?si=3Cf5sNoaBdEHGbc-" }
        ],
        notes: [
            { title: "Bangla Literature Notes - Part 1", link: "https://drive.google.com/file/d/1abc123abc123abc123/view?usp=sharing" },
            { title: "Bangla Literature Notes - Part 2", link: "https://drive.google.com/file/d/2xyz456xyz456xyz456/view?usp=sharing" }
        ],
        books: [
            { title: "Rabindranath Tagore: A Biography", link: "https://example.com/tagore-biography" },
            { title: "The Essential Kazi Nazrul Islam", link: "https://example.com/nazrul-essentials" }
        ]
        // ,
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },
    'History and Emergence of Bangladesh': {
        class: [
            { title: "Class 1: The Language Movement", link: "https://youtu.be/DdqQrn7IG7I?si=vTH6uEL33VuBN1O-" },
            { title: "Class 2: Bangladesh Liberation War", link: "https://youtu.be/Ac6K72GL-_Q?si=_xQjJ5kWBXUlqsav" },
            { title: "Class 3: Bangladesh after Independence", link: "https://youtu.be/peLrksyhkew?si=3nMU3FQ9ToyVmbkF" },
            { title: "Class 4: History", link: "https://www.youtube.com/watch?v=_tQZ9J-P5Bo&list=PLToLm9SotZBEyD8hNML0Akhup7lyVO1LZ" },
        ]
        // notes: [
        //     { title: "Bangladesh History Notes - Part 1", link: "https://drive.google.com/file/d/1hgb234hgb234hgb234/view?usp=sharing" },
        //     { title: "Bangladesh History Notes - Part 2", link: "https://drive.google.com/file/d/2dfg345dfg345dfg345/view?usp=sharing" }
        // ],
        // books: [
        //     { title: "Bangladesh Liberation War: A Historical Overview", link: "https://example.com/liberation-war-book" },
        //     { title: "The Emergence of Bangladesh", link: "https://example.com/emergence-bd" }
        // ],
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    },

    'Object Oriented Programming': {
        class: [
            { title: "Class 1: Java", link: "https://www.youtube.com/watch?v=z7QwTMDQ88o&list=PLgH5QX0i9K3oAZUB2QXR-dZac0c9HNyRa" },
            { title: "Class 2: OOP Concepts in Java", link: "https://youtu.be/bSrm9RXwBaI?si=xdAHbD3CuupZ0Dsp" },
            { title: "Class 3: OOP Design Patterns", link: "https://example.com/oop-design-patterns" }
        ],
        notes: [
            { title: "OOP Notes - Part 1", link: "https://drive.google.com/file/d/1xyz123abc123abc123/view?usp=sharing" },
            { title: "OOP Notes - Part 2", link: "https://drive.google.com/file/d/2abc456def456def456/view?usp=sharing" }
        ]
        // books: [
        //     { title: "Object-Oriented Design & Programming in Java", link: "https://example.com/oop-java-book" },
        //     { title: "Design Patterns: Elements of Reusable Object-Oriented Software", link: "https://example.com/design-patterns-book" }
        // ],
        // question: [
        //     { title: "CT", link: "https://example.com/ct" },
        //     { title: "Main Exam", link: "https://example.com/main-exam" }
        // ]
    }
};

const subjectsList = document.getElementById('subjects-list');
const courseDetailsSection = document.getElementById('course-details');
const courseTitle = document.getElementById('course-title');
const classList = document.getElementById('class-list');
const notesList = document.getElementById('notes-list');
const booksList = document.getElementById('books-list');
const questionList = document.getElementById('question-list');

// Create the subject list dynamically
Object.keys(courses).forEach(subject => {
    const subjectItem = document.createElement('li');
    subjectItem.textContent = subject;
    subjectItem.addEventListener('click', () => displayCourseDetails(subject));
    subjectsList.appendChild(subjectItem);
});

// Function to display the course details
function displayCourseDetails(subject) {
    const course = courses[subject];
    courseTitle.textContent = subject;

    classList.innerHTML = '';
    notesList.innerHTML = '';
    booksList.innerHTML = '';
    questionList.innerHTML = '';

    // Append class videos
    course.class.forEach(item => {
        const classItem = document.createElement('li');
        const classLink = document.createElement('a');
        classLink.href = item.link;
        classLink.textContent = item.title;
        classItem.appendChild(classLink);
        classList.appendChild(classItem);
    });

    // Append notes
    course.notes.forEach(item => {
        const notesItem = document.createElement('li');
        const notesLink = document.createElement('a');
        notesLink.href = item.link;
        notesLink.textContent = item.title;
        notesItem.appendChild(notesLink);
        notesList.appendChild(notesItem);
    });

    // Append books
    course.books.forEach(item => {
        const booksItem = document.createElement('li');
        const booksLink = document.createElement('a');
        booksLink.href = item.link;
        booksLink.textContent = item.title;
        booksItem.appendChild(booksLink);
        booksList.appendChild(booksItem);
    });

    // Append questions
    course.question.forEach(item => {
        const questionItem = document.createElement('li');
        const questionLink = document.createElement('a');
        questionLink.href = item.link;
        questionLink.textContent = item.title;
        questionItem.appendChild(questionLink);
        questionList.appendChild(questionItem);
    });

    courseDetailsSection.style.display = 'block';
}