/**
 * Main Entry Point - ES6 Modules
 * Initializes the application with modular architecture
 */

// Core imports
import { loadPreferences } from './core/storage.js';
import { applyUserPreferences } from './ui/theme.js';
import { showSection } from './ui/navigation.js';

// UI imports
import './ui/mobile-menu.js';
import './ui/csv-manager-ui.js';

/**
 * Initialize application
 */
async function initializeApp() {
console.log('🚀 SteelBase v7.5 - Inicializando (Modular)...');
    
    try {
        // 1. Load user preferences
        loadPreferences();
        
        // 2. Apply preferences (theme, colors, fonts)
        applyUserPreferences();
        
        // 3. Load initial section
        await showSection('cev');
        
        // 4. Initialize optional functions safely
        initializeOptionalFeatures();
        
        // 5. Apply admin config
        if (typeof window.applyAdminConfig === 'function') {
            window.applyAdminConfig();
        }
        
        // 6. Filter tools by mode
        if (typeof window.filterToolsByMode === 'function') {
            window.filterToolsByMode();
        }
        
        console.log('✅ Aplicativo inicializado com sucesso (Modular)!');
        
    } catch (error) {
        console.error('❌ Erro na inicialização:', error);
    } finally {
        // Remove loading screen
        removeLoadingScreen();
    }
}

/**
 * Initialize optional features that may not exist
 */
function initializeOptionalFeatures() {
    const optionalFunctions = [
        'mostrarEquivalencias',
        'gerarChecklistCertificado',
        'updatePaintFields',
        'updateWeightFields'
    ];
    
    optionalFunctions.forEach(funcName => {
        if (typeof window[funcName] === 'function') {
            try {
                window[funcName]();
            } catch (error) {
                console.warn(`⚠️ Erro ao inicializar ${funcName}:`, error);
            }
        }
    });
}

/**
 * Remove loading screen with animation
 */
function removeLoadingScreen() {
    setTimeout(() => {
        const loadingScreen = document.getElementById('app-loading');
        if (loadingScreen) {
            loadingScreen.style.opacity = '0';
            loadingScreen.style.transition = 'opacity 0.3s ease';
            setTimeout(() => loadingScreen.remove(), 300);
        }
    }, 500);
}

/**
 * Setup event listeners
 */
function setupEventListeners() {
    // Budget observer
    const observer = new MutationObserver(() => {
        if (window.appState && window.appState.currentSection === 'orcamento') {
            if (typeof window.initializeBudget === 'function') {
                setTimeout(window.initializeBudget, 100);
            }
        }
    });
    
    // Removido: adminModal legado
}

// Initialize when DOM is ready
if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', () => {
        initializeApp();
        setupEventListeners();
    });
} else {
    initializeApp();
    setupEventListeners();
}

// Export for debugging
if (typeof window !== 'undefined') {
    window.__appModules = {
        version: '7.5.0',
        modular: true,
        initialized: true
    };
}