// SoberanIA Argentina - Revolutionary Fintech Application
class SoberanIAApp {
    constructor() {
        this.data = {
            usuarios_actuales: 1247500,
            redistribuido_total: 45320780000,
            peso_d_circulacion: 32654892300,
            jubilados_beneficiados: 872500,
            comercios_adheridos: 28750,
            pool_sorteos: 12500000,
            soberania_porcentaje: 45,
            provincias: [
                { nombre: "Buenos Aires", usuarios: 450000, beneficiarios: 315000, penetracion: 2.6 },
                { nombre: "CABA", usuarios: 120000, beneficiarios: 84000, penetracion: 3.9 },
                { nombre: "Córdoba", usuarios: 98000, beneficiarios: 68600, penetracion: 2.6 },
                { nombre: "Santa Fe", usuarios: 85000, beneficiarios: 59500, penetracion: 2.5 },
                { nombre: "Mendoza", usuarios: 75000, beneficiarios: 52500, penetracion: 3.8 },
                { nombre: "Tucumán", usuarios: 65000, beneficiarios: 45500, penetracion: 4.1 }
            ],
            productos_destacados: [
                { titulo: "Smartphone Samsung A54", precio: 299000, precio_ml: 386700, vendedor: "TechCoopBA", rating: 4.8, ahorro: 87700, categoria: "tecnologia", id: 1 },
                { titulo: "Heladera Gafa 365L", precio: 485000, precio_ml: 627000, vendedor: "ElectroCoopSF", rating: 4.9, ahorro: 142000, categoria: "hogar", id: 2 },
                { titulo: "Notebook Lenovo IdeaPad", precio: 520000, precio_ml: 728000, vendedor: "CompuCoopCor", rating: 4.7, ahorro: 208000, categoria: "tecnologia", id: 3 },
                { titulo: "Smart TV 55 pulgadas", precio: 680000, precio_ml: 884000, vendedor: "TechCoopBA", rating: 4.6, ahorro: 204000, categoria: "tecnologia", id: 4 },
                { titulo: "Lavarropas Automático 8kg", precio: 420000, precio_ml: 546000, vendedor: "ElectroCoopSF", rating: 4.8, ahorro: 126000, categoria: "hogar", id: 5 },
                { titulo: "Zapatillas Running Nike", precio: 89000, precio_ml: 115700, vendedor: "SportCoopMdz", rating: 4.5, ahorro: 26700, categoria: "deportes", id: 6 },
                { titulo: "Microondas LG 28L", precio: 180000, precio_ml: 234000, vendedor: "ElectroCoopSF", rating: 4.7, ahorro: 54000, categoria: "hogar", id: 7 },
                { titulo: "Tablet Samsung 10.1", precio: 220000, precio_ml: 286000, vendedor: "TechCoopBA", rating: 4.6, ahorro: 66000, categoria: "tecnologia", id: 8 }
            ],
            ganadores_recientes: [
                { fecha: "2025-06-01", ganador: "María G.", categoria: "Jubilada", premio: 2500000, provincia: "Buenos Aires" },
                { fecha: "2025-05-25", ganador: "Carlos R.", categoria: "Jubilado", premio: 1800000, provincia: "Córdoba" },
                { fecha: "2025-05-18", ganador: "Ana M.", categoria: "Vulnerable", premio: 1200000, provincia: "Santa Fe" },
                { fecha: "2025-05-11", ganador: "Luis M.", categoria: "General", premio: 800000, provincia: "CABA" },
                { fecha: "2025-05-04", ganador: "Elena S.", categoria: "Jubilada", premio: 2100000, provincia: "Buenos Aires" },
                { fecha: "2025-04-27", ganador: "Roberto P.", categoria: "Jubilado", premio: 1900000, provincia: "Mendoza" }
            ],
            testimonios: [
                { nombre: "María González", edad: 68, ubicacion: "San Isidro, Buenos Aires", testimonio: "Gracias a SoberanIA puedo comprar medicamentos sin preocuparme. He ganado dos sorteos que me cambiaron la vida.", monto_ganado: 2500000 },
                { nombre: "Carlos Rodríguez", edad: 72, ubicacion: "Córdoba Capital", testimonio: "Después de 40 años de trabajo, mi jubilación no alcanzaba. Con SoberanIA recuperé la dignidad.", monto_ganado: 1800000 },
                { nombre: "Ana Fernández", edad: 65, ubicacion: "Rosario, Santa Fe", testimonio: "Mis nietos ahora pueden estudiar gracias a los sorteos de SoberanIA. Es una bendición.", monto_ganado: 1200000 },
                { nombre: "Elena Silva", edad: 70, ubicacion: "La Plata, Buenos Aires", testimonio: "Por primera vez en años puedo ayudar a mis hijos. SoberanIA cambió mi vida completamente.", monto_ganado: 2100000 }
            ],
            noticias: [
                { fecha: "Junio 8, 2025", titulo: "SoberanIA alcanza 2500 comercios adheridos en Tucumán", descripcion: "La economía local registra 18% de aumento en transacciones sin intermediarios." },
                { fecha: "Junio 5, 2025", titulo: "BCRA reconoce al PESO-D como medio de pago oficial", descripcion: "Fortalece la soberanía monetaria digital argentina." },
                { fecha: "Junio 3, 2025", titulo: "Jubilados de Mendoza reciben $45M en redistribución", descripcion: "El sistema cooperativo supera todas las expectativas de impacto social." },
                { fecha: "Junio 1, 2025", titulo: "Nueva alianza con cooperativas agropecuarias", descripcion: "Productos del campo directo al consumidor con 0% comisión." }
            ]
        };

        this.state = {
            currentSection: 'dashboard',
            isLoggedIn: false,
            user: null,
            cart: [],
            balance: 25450.00,
            sorteoTarget: this.getNextSundayAt8PM(),
            countdownInterval: null
        };

        this.charts = {};
        this.productsLoaded = false;
        this.init();
    }

    init() {
        // Wait for DOM to be fully loaded
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', () => {
                this.setupApp();
            });
        } else {
            this.setupApp();
        }
    }

    setupApp() {
        this.setupEventListeners();
        this.startCounters();
        this.initializeCharts();
        this.loadDynamicContent();
        this.startCountdown();
        this.updateCountersInterval();
        this.updateBalance();
        this.updateCartDisplay();
        
        console.log('SoberanIA App initialized successfully');
    }

    setupEventListeners() {
        // Navigation links
        const navLinks = document.querySelectorAll('.nav__link');
        navLinks.forEach(link => {
            link.addEventListener('click', (e) => {
                e.preventDefault();
                const section = link.getAttribute('data-section');
                if (section) {
                    this.navigateToSection(section);
                }
            });
        });

        // Mobile menu toggle
        const navToggle = document.getElementById('nav-toggle');
        const navMenu = document.getElementById('nav-menu');
        if (navToggle) {
            navToggle.addEventListener('click', () => {
                if (navMenu) {
                    navMenu.classList.toggle('active');
                }
            });
        }

        // Close mobile menu when clicking nav links
        navLinks.forEach(link => {
            link.addEventListener('click', () => {
                if (navMenu) {
                    navMenu.classList.remove('active');
                }
            });
        });

        // Modal controls
        this.setupModalControls();

        // Form handlers
        this.setupFormHandlers();

        // Marketplace functionality
        this.setupMarketplaceControls();

        // Fintech functionality
        this.setupFintechControls();

        // Cart functionality
        this.setupCartControls();

        console.log('Event listeners setup complete');
    }

    setupModalControls() {
        // Register modal triggers
        const registerBtn = document.getElementById('register-btn');
        const heroRegister = document.getElementById('hero-register');
        
        if (registerBtn) {
            registerBtn.addEventListener('click', (e) => {
                e.preventDefault();
                if (this.state.isLoggedIn) {
                    this.logout();
                } else {
                    this.openModal('register-modal');
                }
            });
        }

        if (heroRegister) {
            heroRegister.addEventListener('click', (e) => {
                e.preventDefault();
                this.openModal('register-modal');
            });
        }

        // Login modal
        const loginBtn = document.getElementById('login-btn');
        if (loginBtn) {
            loginBtn.addEventListener('click', (e) => {
                e.preventDefault();
                if (!this.state.isLoggedIn) {
                    this.openModal('login-modal');
                }
            });
        }

        // Send money modal
        const sendMoneyBtn = document.getElementById('send-money-btn');
        if (sendMoneyBtn) {
            sendMoneyBtn.addEventListener('click', (e) => {
                e.preventDefault();
                if (this.state.isLoggedIn) {
                    this.openModal('send-money-modal');
                } else {
                    this.showToast('Por favor inicia sesión primero', 'error');
                }
            });
        }

        // Sell product modal
        const sellProductBtn = document.getElementById('sell-product-btn');
        if (sellProductBtn) {
            sellProductBtn.addEventListener('click', (e) => {
                e.preventDefault();
                if (this.state.isLoggedIn) {
                    this.openModal('sell-product-modal');
                } else {
                    this.showToast('Por favor inicia sesión primero', 'error');
                }
            });
        }

        // Modal close buttons
        document.querySelectorAll('.modal-close').forEach(btn => {
            btn.addEventListener('click', (e) => {
                e.preventDefault();
                const modalId = btn.getAttribute('data-modal');
                if (modalId) {
                    this.closeModal(modalId);
                } else {
                    // Find the closest modal and close it
                    const modal = btn.closest('.modal');
                    if (modal) {
                        this.closeModal(modal.id);
                    }
                }
            });
        });

        // Close modal on backdrop click
        document.querySelectorAll('.modal').forEach(modal => {
            modal.addEventListener('click', (e) => {
                if (e.target === modal) {
                    this.closeModal(modal.id);
                }
            });
        });
    }

    setupFormHandlers() {
        // Register form
        const registerForm = document.getElementById('register-form');
        if (registerForm) {
            registerForm.addEventListener('submit', (e) => {
                e.preventDefault();
                this.handleRegister(e.target);
            });
        }

        // Login form
        const loginForm = document.getElementById('login-form');
        if (loginForm) {
            loginForm.addEventListener('submit', (e) => {
                e.preventDefault();
                this.handleLogin(e.target);
            });
        }

        // Send money form
        const sendMoneyForm = document.getElementById('send-money-form');
        if (sendMoneyForm) {
            sendMoneyForm.addEventListener('submit', (e) => {
                e.preventDefault();
                this.handleSendMoney(e.target);
            });
        }

        // Sell product form
        const sellProductForm = document.getElementById('sell-product-form');
        if (sellProductForm) {
            sellProductForm.addEventListener('submit', (e) => {
                e.preventDefault();
                this.handleSellProduct(e.target);
            });
        }
    }

    setupMarketplaceControls() {
        // Product search
        const productSearch = document.getElementById('product-search');
        if (productSearch) {
            productSearch.addEventListener('input', (e) => {
                this.filterProducts(e.target.value);
            });
        }

        // Category filters
        document.querySelectorAll('.filter-btn').forEach(btn => {
            btn.addEventListener('click', (e) => {
                e.preventDefault();
                document.querySelectorAll('.filter-btn').forEach(b => b.classList.remove('active'));
                btn.classList.add('active');
                const category = btn.getAttribute('data-category');
                this.filterProductsByCategory(category);
            });
        });
    }

    setupFintechControls() {
        // Investment calculators
        document.querySelectorAll('.investment-input').forEach(input => {
            input.addEventListener('input', (e) => {
                this.calculateInvestment(e.target);
            });
        });

        // Credit calculators
        document.querySelectorAll('.credit-input, .credit-term').forEach(input => {
            input.addEventListener('input', (e) => {
                this.calculateCredit(e.target);
            });
            input.addEventListener('change', (e) => {
                this.calculateCredit(e.target);
            });
        });

        // QR and history buttons
        const receiveBtn = document.getElementById('receive-money-btn');
        const historyBtn = document.getElementById('history-btn');
        
        if (receiveBtn) {
            receiveBtn.addEventListener('click', (e) => {
                e.preventDefault();
                this.showToast('QR generado para recibir pagos PESO-D', 'success', 'QR Generado');
            });
        }

        if (historyBtn) {
            historyBtn.addEventListener('click', (e) => {
                e.preventDefault();
                this.showTransactionHistory();
            });
        }
    }

    setupCartControls() {
        // Cart close
        const cartClose = document.getElementById('cart-close');
        if (cartClose) {
            cartClose.addEventListener('click', (e) => {
                e.preventDefault();
                this.closeCart();
            });
        }

        // Checkout
        const checkoutBtn = document.getElementById('checkout-btn');
        if (checkoutBtn) {
            checkoutBtn.addEventListener('click', (e) => {
                e.preventDefault();
                this.handleCheckout();
            });
        }
    }

    navigateToSection(sectionId) {
        console.log('Navigating to section:', sectionId);
        
        // Update active nav link
        document.querySelectorAll('.nav__link').forEach(link => {
            link.classList.remove('active');
        });
        const activeLink = document.querySelector(`[data-section="${sectionId}"]`);
        if (activeLink) {
            activeLink.classList.add('active');
        }

        // Update active section
        document.querySelectorAll('.section').forEach(section => {
            section.classList.remove('active');
        });
        const activeSection = document.getElementById(sectionId);
        if (activeSection) {
            activeSection.classList.add('active');
            console.log('Section activated:', sectionId);
        } else {
            console.error('Section not found:', sectionId);
        }

        this.state.currentSection = sectionId;

        // Load section-specific content if needed
        if (sectionId === 'marketplace' && !this.productsLoaded) {
            setTimeout(() => {
                this.loadProducts();
                this.productsLoaded = true;
            }, 100);
        }

        // Re-initialize charts if needed for fintech section
        if (sectionId === 'fintech') {
            setTimeout(() => {
                this.initializeFintechCharts();
            }, 200);
        }

        // Scroll to top
        window.scrollTo({ top: 0, behavior: 'smooth' });
    }

    openModal(modalId) {
        const modal = document.getElementById(modalId);
        if (modal) {
            modal.classList.add('active');
            document.body.style.overflow = 'hidden';
            console.log('Modal opened:', modalId);
        } else {
            console.error('Modal not found:', modalId);
        }
    }

    closeModal(modalId) {
        const modal = document.getElementById(modalId);
        if (modal) {
            modal.classList.remove('active');
            document.body.style.overflow = 'auto';
            console.log('Modal closed:', modalId);
        }
    }

    showToast(message, type = 'info', title = '') {
        const toastContainer = document.getElementById('toast-container');
        if (!toastContainer) {
            console.error('Toast container not found');
            return;
        }

        const toast = document.createElement('div');
        toast.className = `toast toast--${type}`;
        
        const icons = {
            success: 'fas fa-check-circle',
            error: 'fas fa-exclamation-circle',
            info: 'fas fa-info-circle'
        };

        toast.innerHTML = `
            <div class="toast-content">
                <i class="toast-icon ${icons[type]}"></i>
                <div class="toast-message">
                    ${title ? `<div class="toast-title">${title}</div>` : ''}
                    <div class="toast-description">${message}</div>
                </div>
            </div>
        `;

        toastContainer.appendChild(toast);

        setTimeout(() => {
            if (toast.parentNode) {
                toast.remove();
            }
        }, 5000);
    }

    handleRegister(form) {
        const formData = new FormData(form);
        const userData = {
            username: formData.get('username'),
            email: formData.get('email'),
            dni: formData.get('dni'),
            password: formData.get('password'),
            confirmPassword: formData.get('confirm-password'),
            category: formData.get('category')
        };

        // Validate DNI
        if (!/^\d{8}$/.test(userData.dni)) {
            this.showToast('DNI debe tener exactamente 8 dígitos', 'error', 'Error de Validación');
            return;
        }

        // Validate passwords match
        if (userData.password !== userData.confirmPassword) {
            this.showToast('Las contraseñas no coinciden', 'error', 'Error de Validación');
            return;
        }

        // Validate required fields
        if (!userData.username || !userData.email || !userData.category) {
            this.showToast('Todos los campos son obligatorios', 'error', 'Error de Validación');
            return;
        }

        // Simulate registration
        this.state.user = {
            username: userData.username,
            email: userData.email,
            dni: userData.dni,
            category: userData.category
        };
        this.state.isLoggedIn = true;

        this.closeModal('register-modal');
        this.showToast('¡Registro exitoso! Bienvenido a la revolución fintech cooperativa', 'success', '¡Bienvenido!');
        this.updateUIForLoggedInUser();
        
        // Add welcome bonus
        this.state.balance += 1000;
        this.showToast('Has recibido $1,000 PESO-D de bienvenida', 'success', 'Bono de Bienvenida');
        this.updateBalance();
        
        // Reset form
        form.reset();
    }

    handleLogin(form) {
        const formData = new FormData(form);
        
        // Simulate login
        this.state.user = {
            username: formData.get('username'),
            email: formData.get('username'),
            category: 'general'
        };
        this.state.isLoggedIn = true;

        this.closeModal('login-modal');
        this.showToast('Sesión iniciada correctamente', 'success', 'Bienvenido de vuelta');
        this.updateUIForLoggedInUser();
        
        // Reset form
        form.reset();
    }

    handleSendMoney(form) {
        const formData = new FormData(form);
        const amount = parseFloat(formData.get('amount'));
        const recipient = formData.get('recipient');
        
        if (!recipient) {
            this.showToast('Ingresa el destinatario', 'error');
            return;
        }
        
        if (amount <= 0) {
            this.showToast('El monto debe ser mayor a 0', 'error');
            return;
        }
        
        if (amount > this.state.balance) {
            this.showToast('Saldo insuficiente para realizar la transferencia', 'error', 'Error de Saldo');
            return;
        }

        this.state.balance -= amount;
        this.updateBalance();
        
        this.closeModal('send-money-modal');
        this.showToast(`Enviaste $${amount.toLocaleString()} PESO-D a ${recipient} exitosamente`, 'success', 'Transferencia Exitosa');
        
        // Reset form
        form.reset();
    }

    handleSellProduct(form) {
        const formData = new FormData(form);
        const newProduct = {
            titulo: formData.get('title'),
            precio: parseInt(formData.get('price')),
            precio_ml: parseInt(formData.get('price')) * 1.3, // 30% más en MercadoLibre
            vendedor: this.state.user.username,
            rating: 5.0,
            categoria: formData.get('category'),
            id: Date.now(),
            ahorro: parseInt(formData.get('price')) * 0.3
        };

        this.data.productos_destacados.push(newProduct);
        this.loadProducts();
        
        this.closeModal('sell-product-modal');
        this.showToast('Producto publicado exitosamente con 0% de comisión', 'success', 'Publicación Exitosa');
        
        // Reset form
        form.reset();
    }

    updateUIForLoggedInUser() {
        const loginBtn = document.getElementById('login-btn');
        const registerBtn = document.getElementById('register-btn');
        
        if (loginBtn && registerBtn && this.state.user) {
            loginBtn.innerHTML = `<i class="fas fa-user"></i> ${this.state.user.username}`;
            registerBtn.innerHTML = '<i class="fas fa-sign-out-alt"></i> Salir';
        }
    }

    logout() {
        this.state.isLoggedIn = false;
        this.state.user = null;
        this.state.cart = [];
        this.state.balance = 25450.00;
        
        const loginBtn = document.getElementById('login-btn');
        const registerBtn = document.getElementById('register-btn');
        
        if (loginBtn && registerBtn) {
            loginBtn.innerHTML = '<i class="fas fa-sign-in-alt"></i> Ingresar';
            registerBtn.innerHTML = '<i class="fas fa-user-plus"></i> Registro GRATIS';
        }
        
        this.updateBalance();
        this.updateCartDisplay();
        this.showToast('Sesión cerrada correctamente', 'info', 'Hasta luego');
    }

    startCounters() {
        const counters = document.querySelectorAll('.counter');
        counters.forEach(counter => {
            const target = parseInt(counter.getAttribute('data-target'));
            if (isNaN(target)) return;
            
            const duration = 2000;
            const step = target / (duration / 16);
            let current = 0;

            const updateCounter = () => {
                current += step;
                if (current < target) {
                    counter.textContent = Math.floor(current).toLocaleString();
                    requestAnimationFrame(updateCounter);
                } else {
                    counter.textContent = target.toLocaleString();
                }
            };

            // Start animation when element is visible
            const observer = new IntersectionObserver((entries) => {
                entries.forEach(entry => {
                    if (entry.isIntersecting) {
                        updateCounter();
                        observer.unobserve(entry.target);
                    }
                });
            });

            observer.observe(counter);
        });
    }

    updateCountersInterval() {
        setInterval(() => {
            // Simulate real-time growth
            this.data.usuarios_actuales += Math.floor(Math.random() * 15) + 5;
            this.data.redistribuido_total += Math.floor(Math.random() * 2000000) + 500000;
            this.data.peso_d_circulacion += Math.floor(Math.random() * 800000) + 250000;
            this.data.pool_sorteos += Math.floor(Math.random() * 50000) + 10000;
            
            // Update displays without animation
            const userCounter = document.querySelector('[data-target="1247500"]');
            if (userCounter) {
                userCounter.textContent = this.data.usuarios_actuales.toLocaleString();
            }
            
            // Update sorteo pool
            const poolElements = document.querySelectorAll('.sorteo-pool strong');
            poolElements.forEach(el => {
                el.textContent = `$${this.data.pool_sorteos.toLocaleString()}`;
            });
        }, 5000);
    }

    initializeCharts() {
        // Wait for charts to be visible before initializing
        setTimeout(() => {
            this.createGrowthChart();
            this.createRedistributionChart();
            this.createSorteoDistributionChart();
        }, 1000);
    }

    initializeFintechCharts() {
        // Additional charts for fintech section if needed
        console.log('Fintech charts initialized');
    }

    createGrowthChart() {
        const ctx = document.getElementById('growthChart');
        if (!ctx) {
            console.log('Growth chart canvas not found');
            return;
        }

        const months = [];
        const users = [];
        const baseDate = new Date(2024, 0, 1); // January 2024
        
        for (let i = 0; i <= 18; i++) {
            const date = new Date(baseDate);
            date.setMonth(baseDate.getMonth() + i);
            months.push(date.toLocaleDateString('es-AR', { month: 'short', year: '2-digit' }));
            
            // Exponential growth curve
            const growth = 250000 + (1200000 * (1 - Math.exp(-i/8)));
            users.push(Math.floor(growth));
        }

        this.charts.growth = new Chart(ctx, {
            type: 'line',
            data: {
                labels: months,
                datasets: [{
                    label: 'Usuarios Registrados',
                    data: users,
                    borderColor: '#0033A0',
                    backgroundColor: 'rgba(0, 51, 160, 0.1)',
                    fill: true,
                    tension: 0.4,
                    pointBackgroundColor: '#0033A0',
                    pointBorderColor: '#FFFFFF',
                    pointBorderWidth: 2,
                    pointRadius: 4
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        display: false
                    }
                },
                scales: {
                    y: {
                        beginAtZero: false,
                        ticks: {
                            callback: function(value) {
                                return (value / 1000000).toFixed(1) + 'M';
                            }
                        },
                        grid: {
                            color: 'rgba(0, 0, 0, 0.1)'
                        }
                    },
                    x: {
                        grid: {
                            color: 'rgba(0, 0, 0, 0.1)'
                        }
                    }
                }
            }
        });
        console.log('Growth chart created');
    }

    createRedistributionChart() {
        const ctx = document.getElementById('redistributionChart');
        if (!ctx) {
            console.log('Redistribution chart canvas not found');
            return;
        }

        this.charts.redistribution = new Chart(ctx, {
            type: 'doughnut',
            data: {
                labels: ['Jubilados (70%)', 'Sectores Vulnerables (20%)', 'Pool General (10%)'],
                datasets: [{
                    data: [70, 20, 10],
                    backgroundColor: ['#0033A0', '#75AADB', '#FFFFFF'],
                    borderColor: ['#0033A0', '#75AADB', '#0033A0'],
                    borderWidth: 2
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        position: 'bottom',
                        labels: {
                            padding: 20,
                            usePointStyle: true,
                            font: {
                                size: 12
                            }
                        }
                    }
                }
            }
        });
        console.log('Redistribution chart created');
    }

    createSorteoDistributionChart() {
        const ctx = document.getElementById('sorteoDistributionChart');
        if (!ctx) {
            console.log('Sorteo distribution chart canvas not found');
            return;
        }

        this.charts.sorteoDistribution = new Chart(ctx, {
            type: 'pie',
            data: {
                labels: ['Jubilados', 'Vulnerables', 'General'],
                datasets: [{
                    data: [70, 20, 10],
                    backgroundColor: ['#0033A0', '#75AADB', '#E3F2FD'],
                    borderColor: '#FFFFFF',
                    borderWidth: 3
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        display: false
                    }
                }
            }
        });
        console.log('Sorteo distribution chart created');
    }

    loadDynamicContent() {
        this.loadNews();
        this.loadProducts();
        this.loadTestimonials();
        this.loadProvincialStats();
        this.loadWinners();
        console.log('Dynamic content loaded');
    }

    loadNews() {
        const container = document.getElementById('news-container');
        if (!container) return;

        container.innerHTML = this.data.noticias.map(noticia => `
            <div class="news-card">
                <div class="news-card__date">${noticia.fecha}</div>
                <h3 class="news-card__title">${noticia.titulo}</h3>
                <p class="news-card__description">${noticia.descripcion}</p>
            </div>
        `).join('');
    }

    loadProducts() {
        const container = document.getElementById('products-container');
        if (!container) return;

        container.innerHTML = this.data.productos_destacados.map(producto => `
            <div class="product-card" data-category="${producto.categoria}">
                <div class="product-card__image">
                    <i class="fas fa-${this.getProductIcon(producto.categoria)}"></i>
                </div>
                <div class="product-card__content">
                    <h3 class="product-card__title">${producto.titulo}</h3>
                    <div class="product-card__price">$${producto.precio.toLocaleString()}</div>
                    <div class="product-card__comparison">
                        <span class="ml-price">ML: $${producto.precio_ml.toLocaleString()}</span>
                        <span class="savings">Ahorras: $${producto.ahorro.toLocaleString()}</span>
                    </div>
                    <div class="product-card__seller">Por ${producto.vendedor}</div>
                    <div class="product-card__rating">
                        <span class="stars">${'★'.repeat(Math.floor(producto.rating))}${'☆'.repeat(5-Math.floor(producto.rating))}</span>
                        <span>${producto.rating}</span>
                    </div>
                    <div class="product-card__actions">
                        <button class="btn btn--primary btn--sm" onclick="window.app.addToCart(${producto.id})">
                            <i class="fas fa-cart-plus"></i> Agregar
                        </button>
                        <button class="btn btn--secondary btn--sm" onclick="window.app.viewProduct(${producto.id})">
                            <i class="fas fa-eye"></i> Ver
                        </button>
                    </div>
                </div>
            </div>
        `).join('');
        console.log('Products loaded:', this.data.productos_destacados.length);
    }

    getProductIcon(categoria) {
        const icons = {
            'tecnologia': 'laptop',
            'hogar': 'home',
            'ropa': 'tshirt',
            'deportes': 'futbol'
        };
        return icons[categoria] || 'box';
    }

    filterProducts(searchTerm) {
        const products = document.querySelectorAll('.product-card');
        products.forEach(product => {
            const title = product.querySelector('.product-card__title');
            if (title) {
                const matches = title.textContent.toLowerCase().includes(searchTerm.toLowerCase());
                product.style.display = matches ? 'block' : 'none';
            }
        });
    }

    filterProductsByCategory(category) {
        const products = document.querySelectorAll('.product-card');
        products.forEach(product => {
            const productCategory = product.getAttribute('data-category');
            const show = category === 'all' || productCategory === category;
            product.style.display = show ? 'block' : 'none';
        });
    }

    addToCart(productId) {
        if (!this.state.isLoggedIn) {
            this.showToast('Por favor inicia sesión primero', 'error');
            return;
        }

        const product = this.data.productos_destacados.find(p => p.id === productId);
        if (!product) {
            console.error('Product not found:', productId);
            return;
        }

        const existingItem = this.state.cart.find(item => item.id === productId);
        if (existingItem) {
            existingItem.quantity += 1;
        } else {
            this.state.cart.push({ ...product, quantity: 1 });
        }

        this.updateCartDisplay();
        this.showCart();
        this.showToast(`${product.titulo} agregado al carrito`, 'success');
        console.log('Product added to cart:', product.titulo);
    }

    viewProduct(productId) {
        const product = this.data.productos_destacados.find(p => p.id === productId);
        if (product) {
            this.showToast(`Viendo: ${product.titulo} - Ahorro vs ML: $${product.ahorro.toLocaleString()}`, 'info', 'Detalles del Producto');
        }
    }

    showCart() {
        const cartSidebar = document.getElementById('cart-sidebar');
        if (cartSidebar) {
            cartSidebar.classList.add('active');
        }
    }

    updateCartDisplay() {
        const cartItems = document.getElementById('cart-items');
        const cartTotal = document.getElementById('cart-total');
        
        if (!cartItems || !cartTotal) return;

        if (this.state.cart.length === 0) {
            cartItems.innerHTML = '<p style="text-align: center; color: var(--color-text-secondary); padding: 20px;">Tu carrito está vacío</p>';
            cartTotal.innerHTML = '0';
            return;
        }

        cartItems.innerHTML = this.state.cart.map(item => `
            <div class="cart-item">
                <div class="cart-item__info">
                    <div class="cart-item__title">${item.titulo}</div>
                    <div class="cart-item__price">$${item.precio.toLocaleString()} × ${item.quantity}</div>
                    <div class="cart-item__savings">Ahorras: $${(item.ahorro * item.quantity).toLocaleString()}</div>
                </div>
                <button onclick="window.app.removeFromCart(${item.id})" class="btn btn--outline btn--sm">
                    <i class="fas fa-trash"></i>
                </button>
            </div>
        `).join('');

        const total = this.state.cart.reduce((sum, item) => sum + (item.precio * item.quantity), 0);
        const totalSavings = this.state.cart.reduce((sum, item) => sum + (item.ahorro * item.quantity), 0);
        
        cartTotal.innerHTML = `${total.toLocaleString()}<br><small style="color: var(--color-success);">Ahorras: $${totalSavings.toLocaleString()}</small>`;
    }

    removeFromCart(productId) {
        this.state.cart = this.state.cart.filter(item => item.id !== productId);
        this.updateCartDisplay();
        this.showToast('Producto eliminado del carrito', 'info');
    }

    closeCart() {
        const cartSidebar = document.getElementById('cart-sidebar');
        if (cartSidebar) {
            cartSidebar.classList.remove('active');
        }
    }

    handleCheckout() {
        if (this.state.cart.length === 0) {
            this.showToast('Tu carrito está vacío', 'error');
            return;
        }

        const total = this.state.cart.reduce((sum, item) => sum + (item.precio * item.quantity), 0);
        const totalSavings = this.state.cart.reduce((sum, item) => sum + (item.ahorro * item.quantity), 0);
        
        if (total > this.state.balance) {
            this.showToast('Saldo insuficiente. Recarga tu wallet PESO-D', 'error', 'Error de Pago');
            return;
        }

        this.state.balance -= total;
        const itemCount = this.state.cart.length;
        this.state.cart = [];
        this.updateBalance();
        this.updateCartDisplay();
        this.closeCart();
        
        this.showToast(`Compra realizada por $${total.toLocaleString()}. Ahorraste $${totalSavings.toLocaleString()} vs MercadoLibre. ${itemCount} producto${itemCount > 1 ? 's' : ''} comprado${itemCount > 1 ? 's' : ''}.`, 'success', '¡Compra Exitosa!');
    }

    loadTestimonials() {
        const container = document.getElementById('testimonials-carousel');
        if (!container) return;

        container.innerHTML = this.data.testimonios.map(testimonio => `
            <div class="testimonial-card">
                <div class="testimonial-content">
                    "${testimonio.testimonio}"
                </div>
                <div class="testimonial-author">
                    <div class="author-info">
                        <h4>${testimonio.nombre}, ${testimonio.edad} años</h4>
                        <p>${testimonio.ubicacion}</p>
                    </div>
                    <div class="testimonial-prize">
                        +$${testimonio.monto_ganado.toLocaleString()}
                    </div>
                </div>
            </div>
        `).join('');
    }

    loadProvincialStats() {
        const container = document.getElementById('provincial-stats');
        if (!container) return;

        container.innerHTML = this.data.provincias.map(provincia => `
            <div class="provincial-card">
                <h4>${provincia.nombre}</h4>
                <div class="provincial-stats-grid">
                    <div class="provincial-stat">
                        <span class="label">Usuarios:</span>
                        <span class="value">${provincia.usuarios.toLocaleString()}</span>
                    </div>
                    <div class="provincial-stat">
                        <span class="label">Beneficiarios:</span>
                        <span class="value">${provincia.beneficiarios.toLocaleString()}</span>
                    </div>
                    <div class="provincial-stat">
                        <span class="label">Penetración:</span>
                        <span class="value">${provincia.penetracion}%</span>
                    </div>
                    <div class="provincial-stat">
                        <span class="label">Cobertura:</span>
                        <span class="value">${Math.round((provincia.beneficiarios/provincia.usuarios)*100)}%</span>
                    </div>
                </div>
            </div>
        `).join('');
    }

    loadWinners() {
        const tbody = document.getElementById('winners-tbody');
        if (!tbody) return;

        tbody.innerHTML = this.data.ganadores_recientes.map(winner => `
            <tr>
                <td>${winner.fecha}</td>
                <td>${winner.ganador}</td>
                <td><span class="status status--${winner.categoria.toLowerCase()}">${winner.categoria}</span></td>
                <td>$${winner.premio.toLocaleString()}</td>
            </tr>
        `).join('');
    }

    calculateInvestment(input) {
        const amount = parseFloat(input.value) || 0;
        const rate = parseFloat(input.getAttribute('data-rate'));
        const result = amount * rate - amount; // Annual return
        
        const resultElement = input.parentElement.querySelector('.investment-result span');
        if (resultElement) {
            resultElement.textContent = result.toLocaleString();
        }
    }

    calculateCredit(input) {
        const container = input.closest('.credit-option');
        if (!container) return;
        
        const amountInput = container.querySelector('.credit-input');
        const termSelect = container.querySelector('.credit-term');
        const resultElement = container.querySelector('.credit-result span');
        
        if (!amountInput || !termSelect || !resultElement) return;
        
        const amount = parseFloat(amountInput.value) || 0;
        const monthlyRate = parseFloat(amountInput.getAttribute('data-rate'));
        const term = parseInt(termSelect.value);
        
        if (amount && monthlyRate && term) {
            // Simple interest calculation
            const totalInterest = amount * monthlyRate * term;
            const totalAmount = amount + totalInterest;
            const monthlyPayment = totalAmount / term;
            
            resultElement.textContent = monthlyPayment.toLocaleString();
        }
    }

    updateBalance() {
        const balanceElements = document.querySelectorAll('.balance-amount');
        balanceElements.forEach(el => {
            el.textContent = `$${this.state.balance.toLocaleString()}`;
        });
    }

    showTransactionHistory() {
        const mockHistory = [
            { fecha: '2025-06-08', descripcion: 'Compra en TechCoopBA', monto: -299000, tipo: 'compra' },
            { fecha: '2025-06-07', descripcion: 'Transferencia recibida de Carlos R.', monto: 50000, tipo: 'recibido' },
            { fecha: '2025-06-06', descripcion: 'Inversión en Bonos Argentinos', monto: -100000, tipo: 'inversion' },
            { fecha: '2025-06-05', descripcion: 'Premio sorteo semanal', monto: 1200000, tipo: 'premio' },
            { fecha: '2025-06-04', descripcion: 'Staking PESO-D completado', monto: 25000, tipo: 'interes' },
            { fecha: '2025-06-03', descripcion: 'Transferencia a Ana F.', monto: -75000, tipo: 'envio' }
        ];

        const historyHTML = `
            <div style="max-width: 400px;">
                <h3 style="margin-bottom: 16px; color: var(--color-text);">Historial de Transacciones</h3>
                <div class="transaction-history">
                    ${mockHistory.map(tx => `
                        <div class="transaction-item" style="display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--color-border);">
                            <div class="transaction-info">
                                <div class="transaction-description" style="font-weight: 500; color: var(--color-text); margin-bottom: 4px;">${tx.descripcion}</div>
                                <div class="transaction-date" style="font-size: 12px; color: var(--color-text-secondary);">${tx.fecha}</div>
                            </div>
                            <div class="transaction-amount" style="font-weight: bold; color: ${tx.monto > 0 ? 'var(--color-success)' : 'var(--color-error)'};">
                                ${tx.monto > 0 ? '+' : ''}$${Math.abs(tx.monto).toLocaleString()}
                            </div>
                        </div>
                    `).join('')}
                </div>
            </div>
        `;

        // Create a custom toast for transaction history
        const toastContainer = document.getElementById('toast-container');
        if (!toastContainer) return;

        const toast = document.createElement('div');
        toast.className = 'toast toast--info';
        toast.style.maxWidth = '450px';
        
        toast.innerHTML = `
            <div class="toast-content">
                <i class="toast-icon fas fa-history"></i>
                <div class="toast-message">
                    ${historyHTML}
                </div>
            </div>
        `;

        toastContainer.appendChild(toast);

        setTimeout(() => {
            if (toast.parentNode) {
                toast.remove();
            }
        }, 10000); // Show longer for history
    }

    getNextSundayAt8PM() {
        const now = new Date();
        const nextSunday = new Date();
        const daysUntilSunday = (7 - now.getDay()) % 7;
        
        if (daysUntilSunday === 0 && now.getHours() >= 20) {
            // If it's Sunday after 8 PM, go to next Sunday
            nextSunday.setDate(now.getDate() + 7);
        } else {
            nextSunday.setDate(now.getDate() + daysUntilSunday);
        }
        
        nextSunday.setHours(20, 0, 0, 0);
        return nextSunday;
    }

    startCountdown() {
        const updateCountdown = () => {
            const now = new Date().getTime();
            const distance = this.state.sorteoTarget.getTime() - now;

            if (distance < 0) {
                // Reset to next week
                this.state.sorteoTarget = this.getNextSundayAt8PM();
                this.showToast('¡Sorteo realizado! Próximo sorteo programado', 'success', 'Sorteo Completado');
                return;
            }

            const days = Math.floor(distance / (1000 * 60 * 60 * 24));
            const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
            const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
            const seconds = Math.floor((distance % (1000 * 60)) / 1000);

            // Update countdown displays
            const daysEl = document.getElementById('days');
            const hoursEl = document.getElementById('hours');
            const minutesEl = document.getElementById('minutes');
            const secondsEl = document.getElementById('seconds');
            const sorteoCountdown = document.getElementById('sorteo-countdown');

            if (daysEl) daysEl.textContent = days;
            if (hoursEl) hoursEl.textContent = hours;
            if (minutesEl) minutesEl.textContent = minutes;
            if (secondsEl) secondsEl.textContent = seconds;
            if (sorteoCountdown) {
                sorteoCountdown.textContent = `${days}d ${hours}h ${minutes}m`;
            }
        };

        // Update immediately
        updateCountdown();
        
        // Update every second
        if (this.state.countdownInterval) {
            clearInterval(this.state.countdownInterval);
        }
        this.state.countdownInterval = setInterval(updateCountdown, 1000);
    }

    // Cleanup method
    destroy() {
        if (this.state.countdownInterval) {
            clearInterval(this.state.countdownInterval);
        }
        
        // Destroy charts
        Object.values(this.charts).forEach(chart => {
            if (chart && typeof chart.destroy === 'function') {
                chart.destroy();
            }
        });
    }
}

// Initialize the application
document.addEventListener('DOMContentLoaded', () => {
    window.app = new SoberanIAApp();
    console.log('SoberanIA Argentina app loaded successfully');
});

// Handle page unload
window.addEventListener('beforeunload', () => {
    if (window.app) {
        window.app.destroy();
    }
});