utils.js

const Utils = {
    formatPrice(amount) {
        return amount.toLocaleString(CONFIG.LOCALE, {
            style: 'currency',
            currency: CONFIG.CURRENCY
        });
    },

    generateId() {
        return Date.now().toString(36) + Math.random().toString(36).substr(2);
    },

    debounce(func, wait) {
        let timeout;
        return function executedFunction(...args) {
            const later = () => {
                clearTimeout(timeout);
                func(...args);
            };
            clearTimeout(timeout);
            timeout = setTimeout(later, wait);
        };
    },

    showLoading() {
        State.isLoading = true;
        document.getElementById('loadingSpinner').style.display = 'flex';
    },

    hideLoading() {
        State.isLoading = false;
        document.getElementById('loadingSpinner').style.display = 'none';
    },

    validatePhone(phone) {
        return /^[0-9]{10}$/.test(phone);
    },

    validateEmail(email) {
        return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);
    },

    sanitizeHTML(str) {
        const div = document.createElement('div');
        div.textContent = str;
        return div.innerHTML;
    },

    getFormData(formElement) {
        const formData = new FormData(formElement);
        const data = {};
        for (let [key, value] of formData.entries()) {
            data[key] = value;
        }
        return data;
    },

    scrollTo(element, offset = 0) {
        const elementPosition = element.getBoundingClientRect().top;
        const offsetPosition = elementPosition + window.pageYOffset - offset;
        
        window.scrollTo({
            top: offsetPosition,
            behavior: 'smooth'
        });
    }
};

// Storage Helper
const Storage = {
    save(key, data) {
        try {
            localStorage.setItem(key, JSON.stringify(data));
            return true;
        } catch (error) {
            console.error('Storage save error:', error);
            return false;
        }
    },

    load(key) {
        try {
            const data = localStorage.getItem(key);
            return data ? JSON.parse(data) : null;
        } catch (error) {
            console.error('Storage load error:', error);
            return null;
        }
    },

    remove(key) {
        try {
            localStorage.removeItem(key);
            return true;
        } catch (error) {
            console.error('Storage remove error:', error);
            return false;
        }
    },

    clear() {
        try {
            localStorage.clear();
            return true;
        } catch (error) {
            console.error('Storage clear error:', error);
            return false;
        }
    }
};