const accessKeys = {
    'dual1': ["DSA", "DDCO"],
    'dual2': ["OS", "OOJ"],
    'ind1': ["DSA"], 
    'ind2': ["DDCO"],
    'ind3': ["OS"],
    'ind4': ["OOJ"],
    "all@123": ["DSA", "DDCO", "OS", "OOJ"],
    "12345": ""
};

let allowedSections = [];

window.onload = () => {
    document.getElementById('inputModal').classList.add('show');
};

function checkSecretKey() {
    const enteredKey = document.getElementById('secretKey').value;
    if (accessKeys[enteredKey]) {
        allowedSections = accessKeys[enteredKey];
        document.getElementById('inputModal').classList.remove('show');
        document.getElementById('section-content').classList.remove('blur');
        document.getElementById('sidebar').classList.remove('blur');
        document.getElementById('navbar').classList.remove('blur');
        filterSections();
        document.getElementById('secretKey').value = '';
    } else if (enteredKey === '12345') {
        window.location.href = "https://examuse.neocities.org/hello";
    } else {
        alert("Invalid key. Access Denied.");
        window.location.href = "https://www.google.com";
    }
}

function filterSections() {
    const sections = document.querySelectorAll('.section-link');
    sections.forEach(section => {
        if (!allowedSections.includes(section.getAttribute('data-section'))) {
            section.style.display = 'none';
        }
    });
}

function showSection(section) {
    if (!allowedSections.includes(section)) {
        alert("You do not have access to this section.");
        return;
    }

    const container = document.getElementById('section-content');
    container.innerHTML = `<h1 class="section-header">${section}</h1><p>Please choose a program:</p>`;

    const programs = {
        DSA: [
            { name: 'program1', code: `function reverseString(str) { return str.split('').reverse().join(''); }`, output: 'olleH' },
            { name: 'Factorial', code: `function factorial(n) { return n <= 1 ? 1 : n * factorial(n - 1); }`, output: '120' }
        ],
        DDCO: [
            { name: 'Binary Search', code: `function binarySearch(arr, target) { let left = 0, right = arr.length - 1; while (left <= right) { const mid = Math.floor((left + right) / 2); if (arr[mid] === target) return mid; else if (arr[mid] < target) left = mid + 1; else right = mid - 1; } return -1; }`, output: '4' }
        ],
        OS: [
            { name: 'Process Scheduling', code: `// Pseudocode for scheduling`, output: 'Gantt Chart' }
        ],
        OOJ: [
            { name: 'Class Definition', code: `class Animal { constructor(name) { this.name = name; } }`, output: 'Class Animal created.' }
        ],
    };

    programs[section].forEach(program => {
        const btn = document.createElement('div');
        btn.className = 'program-btn';
        btn.innerText = program.name;
        btn.onclick = () => openProgramModal(program);
        container.appendChild(btn);
    });
}

function openProgramModal(program) {
    document.getElementById('programText').innerText = program.name;
    document.getElementById('programCode').innerText = program.code;
    document.getElementById('programModal').classList.add('show');
    document.getElementById('outputCode').innerText = program.output;
}

function closeProgramModal() {
    document.getElementById('programModal').classList.remove('show');
}

function copyText() {
    const code = document.getElementById('programCode').innerText;
    navigator.clipboard.writeText(code).then(() => {
        alert('Code copied to clipboard!');
    });
}

function showOutput() {
    document.getElementById('outputModal').classList.add('show');
}

function closeOutputModal() {
    document.getElementById('outputModal').classList.remove('show');
}

function toggleSidebar() {
    const sidebar = document.getElementById('sidebar');
    sidebar.classList.toggle('active');
    const content = document.getElementById('section-content');
    content.style.marginLeft = sidebar.classList.contains('active') ? '60px' : '220px';
}