mcp-quiz-server/public/dist/components/Dashboard.js

🧠 AI-Powered Quiz Management via Model Context Protocol (MCP) - Create, manage, and take quizzes directly from VS Code, Claude, and other AI agents.

import { DashboardService } from '../services/DashboardService';
import { AppStore } from '../store/AppStore';
import { AuthManager } from './AuthManager';
import { Component } from './Component';
export class Dashboard extends Component {
    constructor() {
        if (!document.getElementById('dashboard-app')) {
            const container = document.createElement('div');
            container.id = 'dashboard-app';
            container.className = 'min-h-screen bg-gray-50';
            document.body.appendChild(container);
        }
        super('#dashboard-app');
        this.unsubscribeStore = null;
        this.isLoading = true;
        this.dashboardData = null;
        this.error = null;
        this.authManager = AuthManager.getInstance();
        this.dashboardService = new DashboardService();
        this.appStore = AppStore.getInstance();
    }
    async onMount() {
        this.setupStoreSubscription();
        this.render();
        try {
            if (!this.authManager.isAuthenticated()) {
                const authenticated = await this.authManager.requireAuthentication();
                if (!authenticated) {
                    this.redirectToLogin();
                    return;
                }
            }
            await this.loadDashboardData();
        }
        catch (error) {
            console.error('Dashboard initialization failed:', error);
            this.error = 'Failed to load dashboard. Please try again.';
            this.isLoading = false;
            this.render();
        }
    }
    render() {
        if (this.isLoading) {
            this.renderLoading();
        }
        else if (this.error) {
            this.renderError();
        }
        else {
            this.renderDashboard();
        }
    }
    bindEvents() {
        const createQuizBtn = this.element.querySelector('.create-quiz-btn');
        createQuizBtn?.addEventListener('click', this.handleCreateQuiz.bind(this));
        const refreshBtn = this.element.querySelector('.refresh-btn');
        refreshBtn?.addEventListener('click', this.handleRefresh.bind(this));
        this.bindQuizListEvents();
    }
    renderLoading() {
        this.element.innerHTML = `
      <div class="dashboard-loading">
        <div class="min-h-screen flex items-center justify-center">
          <div class="text-center">
            <div class="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600 mx-auto mb-4"></div>
            <h2 class="text-lg font-medium text-gray-900 mb-2">Loading Dashboard</h2>
            <p class="text-gray-600">Please wait while we load your information...</p>
          </div>
        </div>
      </div>
    `;
    }
    renderError() {
        this.element.innerHTML = `
      <div class="dashboard-error">
        <div class="min-h-screen flex items-center justify-center">
          <div class="text-center max-w-md mx-auto">
            <div class="text-red-500 mb-4">
              <svg class="w-16 h-16 mx-auto" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"></path>
              </svg>
            </div>
            <h2 class="text-xl font-semibold text-gray-900 mb-2">Dashboard Error</h2>
            <p class="text-gray-600 mb-6">${this.error}</p>
            <button class="retry-btn bg-blue-600 hover:bg-blue-700 text-white px-6 py-2 rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2">
              Try Again
            </button>
          </div>
        </div>
      </div>
    `;
        const retryBtn = this.element.querySelector('.retry-btn');
        retryBtn?.addEventListener('click', this.handleRetry.bind(this));
    }
    renderDashboard() {
        const user = this.authManager.getCurrentUser();
        const stats = this.dashboardData?.stats || {};
        const recentQuizzes = this.dashboardData?.recentQuizzes || [];
        this.element.innerHTML = `
      <div class="dashboard">
        <!-- Navigation -->
        <nav class="bg-white shadow-sm border-b">
          <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
            <div class="flex justify-between h-16">
              <div class="flex items-center">
                <h1 class="text-xl font-semibold text-gray-900">Quiz Dashboard</h1>
              </div>
              <div class="auth-container"></div>
            </div>
          </div>
        </nav>

        <!-- Main Content -->
        <main class="max-w-7xl mx-auto py-6 sm:px-6 lg:px-8">
          <!-- Welcome Section -->
          <div class="mb-8">
            <h2 class="text-2xl font-bold text-gray-900 mb-2">
              Welcome back, ${user?.username || 'User'}!
            </h2>
            <p class="text-gray-600">Manage your quizzes and track your progress</p>
          </div>

          <!-- Quick Actions -->
          <div class="mb-8">
            <div class="flex flex-wrap gap-4">
              <button class="create-quiz-btn bg-blue-600 hover:bg-blue-700 text-white px-6 py-3 rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2 flex items-center">
                <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 6v6m0 0v6m0-6h6m-6 0H6"></path>
                </svg>
                Create New Quiz
              </button>
              <button class="refresh-btn bg-gray-100 hover:bg-gray-200 text-gray-700 px-6 py-3 rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-gray-500 focus:ring-offset-2 flex items-center">
                <svg class="w-5 h-5 mr-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"></path>
                </svg>
                Refresh
              </button>
            </div>
          </div>

          <!-- Dashboard Cards -->
          <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 mb-8">
            <!-- My Quizzes Card -->
            <div class="card bg-white rounded-lg shadow p-6">
              <div class="flex items-center justify-between mb-4">
                <h3 class="text-lg font-medium text-gray-900">My Quizzes</h3>
                <div class="text-3xl font-bold text-blue-600">${stats.totalQuizzes || 0}</div>
              </div>
              <p class="text-gray-600 text-sm mb-4">Total quizzes created</p>
              <a href="/dashboard/quizzes" class="text-blue-600 hover:text-blue-700 text-sm font-medium">
                View all →
              </a>
            </div>

            <!-- Recent Activity Card -->
            <div class="card bg-white rounded-lg shadow p-6">
              <div class="flex items-center justify-between mb-4">
                <h3 class="text-lg font-medium text-gray-900">Recent Activity</h3>
                <div class="text-3xl font-bold text-green-600">${stats.recentActivity || 0}</div>
              </div>
              <p class="text-gray-600 text-sm mb-4">Actions this week</p>
              <a href="/dashboard/analytics" class="text-green-600 hover:text-green-700 text-sm font-medium">
                View analytics →
              </a>
            </div>

            <!-- Profile Card -->
            <div class="card bg-white rounded-lg shadow p-6">
              <div class="flex items-center justify-between mb-4">
                <h3 class="text-lg font-medium text-gray-900">Profile</h3>
                <div class="w-12 h-12 bg-blue-600 rounded-full flex items-center justify-center">
                  <span class="text-white font-medium">${this.getUserInitials(user?.username)}</span>
                </div>
              </div>
              <p class="text-gray-600 text-sm mb-4">${user?.email || 'No email'}</p>
              <a href="/dashboard/profile" class="text-blue-600 hover:text-blue-700 text-sm font-medium">
                Manage profile →
              </a>
            </div>
          </div>

          <!-- Recent Quizzes -->
          <div class="bg-white rounded-lg shadow">
            <div class="px-6 py-4 border-b border-gray-200">
              <h3 class="text-lg font-medium text-gray-900">Recent Quizzes</h3>
            </div>
            <div class="quiz-list">
              ${this.renderQuizList(recentQuizzes)}
            </div>
          </div>
        </main>
      </div>
    `;
        const authContainer = this.element.querySelector('.auth-container');
        if (authContainer) {
            this.authManager.mount();
        }
        this.bindEvents();
    }
    renderQuizList(quizzes) {
        if (!quizzes || quizzes.length === 0) {
            return `
        <div class="px-6 py-8 text-center">
          <div class="text-gray-400 mb-4">
            <svg class="w-12 h-12 mx-auto" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"></path>
            </svg>
          </div>
          <h4 class="text-lg font-medium text-gray-900 mb-2">No quizzes yet</h4>
          <p class="text-gray-600 mb-4">Get started by creating your first quiz</p>
          <button class="create-quiz-btn bg-blue-600 hover:bg-blue-700 text-white px-4 py-2 rounded-lg font-medium transition-colors">
            Create Quiz
          </button>
        </div>
      `;
        }
        return quizzes
            .map(quiz => `
      <div class="quiz-item px-6 py-4 border-b border-gray-200 hover:bg-gray-50 transition-colors">
        <div class="flex items-center justify-between">
          <div class="flex-1">
            <h4 class="text-md font-medium text-gray-900 mb-1">${quiz.title}</h4>
            <p class="text-sm text-gray-600 mb-2">${quiz.description || 'No description'}</p>
            <div class="flex items-center text-xs text-gray-500 space-x-4">
              <span>${quiz.questions?.length || 0} questions</span>
              <span>Created ${this.formatDate(quiz.createdAt)}</span>
              <span class="quiz-status ${quiz.status}">${quiz.status || 'draft'}</span>
            </div>
          </div>
          <div class="flex items-center space-x-2">
            <button class="edit-quiz-btn text-blue-600 hover:text-blue-700 text-sm font-medium" data-quiz-id="${quiz.id}">
              Edit
            </button>
            <button class="view-quiz-btn text-green-600 hover:text-green-700 text-sm font-medium" data-quiz-id="${quiz.id}">
              View
            </button>
          </div>
        </div>
      </div>
    `)
            .join('');
    }
    setupStoreSubscription() {
        this.unsubscribeStore = this.appStore.subscribe(state => {
            if (!state.auth.isAuthenticated) {
                this.redirectToLogin();
            }
        });
    }
    async loadDashboardData() {
        try {
            this.isLoading = true;
            this.render();
            const data = await this.dashboardService.getDashboardData();
            this.dashboardData = data;
            this.error = null;
        }
        catch (error) {
            console.error('Failed to load dashboard data:', error);
            this.error = 'Failed to load dashboard data. Please try again.';
        }
        finally {
            this.isLoading = false;
            this.render();
        }
    }
    handleCreateQuiz() {
        window.location.href = '/quiz/create';
    }
    async handleRefresh() {
        await this.loadDashboardData();
    }
    async handleRetry() {
        this.error = null;
        await this.onMount();
    }
    bindQuizListEvents() {
        const editButtons = this.element.querySelectorAll('.edit-quiz-btn');
        editButtons.forEach(btn => {
            btn.addEventListener('click', e => {
                const quizId = e.target.dataset.quizId;
                if (quizId)
                    this.handleEditQuiz(quizId);
            });
        });
        const viewButtons = this.element.querySelectorAll('.view-quiz-btn');
        viewButtons.forEach(btn => {
            btn.addEventListener('click', e => {
                const quizId = e.target.dataset.quizId;
                if (quizId)
                    this.handleViewQuiz(quizId);
            });
        });
    }
    handleEditQuiz(quizId) {
        window.location.href = `/quiz/edit/${quizId}`;
    }
    handleViewQuiz(quizId) {
        window.location.href = `/quiz/view/${quizId}`;
    }
    getUserInitials(username) {
        if (!username)
            return 'U';
        const parts = username.split(/[\s@_.-]+/);
        if (parts.length >= 2) {
            return (parts[0][0] + parts[1][0]).toUpperCase();
        }
        return username.substring(0, 2).toUpperCase();
    }
    formatDate(date) {
        if (!date)
            return 'Unknown';
        const d = new Date(date);
        const now = new Date();
        const diffTime = Math.abs(now.getTime() - d.getTime());
        const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));
        if (diffDays === 1)
            return 'Today';
        if (diffDays === 2)
            return 'Yesterday';
        if (diffDays <= 7)
            return `${diffDays} days ago`;
        return d.toLocaleDateString();
    }
    redirectToLogin() {
        window.location.href = '/auth/login.html';
    }
    onUnmount() {
        this.unsubscribeStore?.();
    }
}
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