/**
 * Main Application Module
 * Entry point for the application, initializes all components
 */
document.addEventListener('DOMContentLoaded', () => {
    // Initialize authentication first
    Auth.init();
    
    // Initialize all other modules
    DataManager.init();
    UI.init();
    Charts.init();
    
    // Render initial data
    UI.renderWeightTable();
    UI.renderMealTable();
    
    // Add logout button to settings tab
    const settingsCard = document.querySelector('#settings-content .card:last-child');
    if (settingsCard) {
        const logoutSection = document.createElement('div');
        logoutSection.className = 'form-group';
        logoutSection.innerHTML = `
            <h3>Security</h3>
            <p>Log out of your weight tracker application</p>
            <button id="logout-button" class="btn secondary-btn">Logout</button>
        `;
        settingsCard.appendChild(logoutSection);
        
        // Add logout functionality
        document.getElementById('logout-button').addEventListener('click', () => {
            Auth.logout();
        });
    }
    
    console.log('Weight Tracker app initialized successfully');
});