// static/shop/js/shop-layout.js
/**
 * Shop Layout Component
 * Provides base functionality for vendor shop pages
 * Works with vendor-specific themes
 */

const shopLog = {
    info: (...args) => console.info('🛒 [SHOP]', ...args),
    warn: (...args) => console.warn('⚠️ [SHOP]', ...args),
    error: (...args) => console.error('❌ [SHOP]', ...args),
    debug: (...args) => console.log('🔍 [SHOP]', ...args)
};

/**
 * Shop Layout Data
 * Base Alpine.js component for shop pages
 */
function shopLayoutData() {
    return {
        // Theme state
        dark: localStorage.getItem('shop-theme') === 'dark',

        // UI state
        mobileMenuOpen: false,
        searchOpen: false,
        loading: false,
        cartCount: 0,

        // Cart state
        cart: [],
        sessionId: null,

        // Initialize
        init() {
            shopLog.info('Shop layout initializing...');

            // Get or create session ID
            this.sessionId = this.getOrCreateSessionId();
            shopLog.debug('Session ID:', this.sessionId);

            // Load cart from localStorage
            this.loadCart();

            // Listen for cart updates
            window.addEventListener('cart-updated', () => {
                this.loadCart();
            });

            shopLog.info('Shop layout initialized');
        },

        // Get or create session ID
        getOrCreateSessionId() {
            let sessionId = localStorage.getItem('cart_session_id');
            if (!sessionId) {
                sessionId = 'session_' + Date.now() + '_' + Math.random().toString(36).substr(2, 9);
                localStorage.setItem('cart_session_id', sessionId);
                shopLog.info('Created new session ID:', sessionId);
            }
            return sessionId;
        },

        // Theme management
        toggleTheme() {
            this.dark = !this.dark;
            localStorage.setItem('shop-theme', this.dark ? 'dark' : 'light');
            shopLog.debug('Theme toggled:', this.dark ? 'dark' : 'light');
        },

        // Mobile menu
        toggleMobileMenu() {
            this.mobileMenuOpen = !this.mobileMenuOpen;
            if (this.mobileMenuOpen) {
                document.body.style.overflow = 'hidden';
            } else {
                document.body.style.overflow = '';
            }
        },

        closeMobileMenu() {
            this.mobileMenuOpen = false;
            document.body.style.overflow = '';
        },

        // Search
        openSearch() {
            this.searchOpen = true;
            shopLog.debug('Search opened');
            // Focus search input after a short delay
            setTimeout(() => {
                const input = document.querySelector('#search-input');
                if (input) input.focus();
            }, 100);
        },

        closeSearch() {
            this.searchOpen = false;
        },

        // Cart management
        loadCart() {
            try {
                const cartData = localStorage.getItem('shop-cart');
                if (cartData) {
                    this.cart = JSON.parse(cartData);
                    this.cartCount = this.cart.reduce((sum, item) => sum + item.quantity, 0);
                }
            } catch (error) {
                shopLog.error('Failed to load cart:', error);
                this.cart = [];
                this.cartCount = 0;
            }
        },

        addToCart(product, quantity = 1) {
            shopLog.info('Adding to cart:', product.name, 'x', quantity);

            // Find existing item
            const existingIndex = this.cart.findIndex(item => item.id === product.id);

            if (existingIndex !== -1) {
                // Update quantity
                this.cart[existingIndex].quantity += quantity;
            } else {
                // Add new item
                this.cart.push({
                    id: product.id,
                    name: product.name,
                    price: product.price,
                    image: product.image,
                    quantity: quantity
                });
            }

            // Save and update
            this.saveCart();
            this.showToast(`${product.name} added to cart`, 'success');
        },

        updateCartItem(productId, quantity) {
            const index = this.cart.findIndex(item => item.id === productId);
            if (index !== -1) {
                if (quantity <= 0) {
                    this.cart.splice(index, 1);
                } else {
                    this.cart[index].quantity = quantity;
                }
                this.saveCart();
            }
        },

        removeFromCart(productId) {
            this.cart = this.cart.filter(item => item.id !== productId);
            this.saveCart();
            this.showToast('Item removed from cart', 'info');
        },

        clearCart() {
            this.cart = [];
            this.saveCart();
            this.showToast('Cart cleared', 'info');
        },

        saveCart() {
            try {
                localStorage.setItem('shop-cart', JSON.stringify(this.cart));
                this.cartCount = this.cart.reduce((sum, item) => sum + item.quantity, 0);

                // Dispatch custom event
                window.dispatchEvent(new CustomEvent('cart-updated'));

                shopLog.debug('Cart saved:', this.cart.length, 'items');
            } catch (error) {
                shopLog.error('Failed to save cart:', error);
            }
        },

        // Get cart total
        get cartTotal() {
            return this.cart.reduce((sum, item) => sum + (item.price * item.quantity), 0);
        },

        // Toast notifications
        showToast(message, type = 'info') {
            const container = document.getElementById('toast-container');
            if (!container) return;

            const toast = document.createElement('div');
            toast.className = `toast toast-${type} transform transition-all duration-300 mb-2`;

            // Color based on type
            const colors = {
                success: 'bg-green-500',
                error: 'bg-red-500',
                warning: 'bg-yellow-500',
                info: 'bg-blue-500'
            };

            toast.innerHTML = `
                <div class="${colors[type]} text-white px-6 py-3 rounded-lg shadow-lg flex items-center space-x-3">
                    <span>${message}</span>
                    <button onclick="this.parentElement.parentElement.remove()"
                            class="ml-4 hover:opacity-75">
                        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
                        </svg>
                    </button>
                </div>
            `;

            container.appendChild(toast);

            // Auto-remove after 3 seconds
            setTimeout(() => {
                toast.style.opacity = '0';
                setTimeout(() => toast.remove(), 300);
            }, 3000);
        },

        // Format currency
        formatPrice(price) {
            return new Intl.NumberFormat('en-US', {
                style: 'currency',
                currency: 'USD'
            }).format(price);
        },

        // Format date
        formatDate(dateString) {
            if (!dateString) return '-';
            const date = new Date(dateString);
            return date.toLocaleDateString('en-US', {
                year: 'numeric',
                month: 'short',
                day: 'numeric'
            });
        }
    };
}

// Make available globally
window.shopLayoutData = shopLayoutData;

/**
 * Language Selector Component
 * Alpine.js component for language switching
 */
function languageSelector(currentLang, enabledLanguages) {
    return {
        isLangOpen: false,
        currentLang: currentLang || 'fr',
        languages: enabledLanguages || ['fr', 'de', 'en'],
        languageNames: {
            'en': 'English',
            'fr': 'Français',
            'de': 'Deutsch',
            'lb': 'Lëtzebuergesch'
        },
        languageFlags: {
            'en': 'gb',
            'fr': 'fr',
            'de': 'de',
            'lb': 'lu'
        },
        async setLanguage(lang) {
            if (lang === this.currentLang) {
                this.isLangOpen = false;
                return;
            }
            try {
                const response = await fetch('/api/v1/language/set', {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({ language: lang })
                });
                if (response.ok) {
                    this.currentLang = lang;
                    window.location.reload();
                }
            } catch (error) {
                console.error('Failed to set language:', error);
            }
            this.isLangOpen = false;
        }
    };
}

window.languageSelector = languageSelector;

shopLog.info('Shop layout module loaded');