{# app/templates/storefront/checkout.html #}
{% extends "storefront/base.html" %}

{% block title %}Checkout - {{ vendor.name }}{% endblock %}

{% block alpine_data %}checkoutPage(){% endblock %}

{% block content %}
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">

    {# Breadcrumbs #}
    <nav class="mb-6" aria-label="Breadcrumb">
        <ol class="flex items-center space-x-2 text-sm text-gray-500 dark:text-gray-400">
            <li><a href="{{ base_url }}shop/" class="hover:text-primary">Home</a></li>
            <li class="flex items-center">
                <span class="h-4 w-4 mx-2" x-html="$icon('chevron-right', 'h-4 w-4')"></span>
                <a href="{{ base_url }}shop/cart" class="hover:text-primary">Cart</a>
            </li>
            <li class="flex items-center">
                <span class="h-4 w-4 mx-2" x-html="$icon('chevron-right', 'h-4 w-4')"></span>
                <span class="text-gray-900 dark:text-white">Checkout</span>
            </li>
        </ol>
    </nav>

    {# Page Header #}
    <h1 class="text-3xl font-bold text-gray-900 dark:text-white mb-8">Checkout</h1>

    {# Loading State #}
    <div x-show="loading" class="flex justify-center items-center py-12">
        <div class="animate-spin rounded-full h-12 w-12 border-b-2 border-primary" style="border-color: var(--color-primary)"></div>
    </div>

    {# Empty Cart #}
    <div x-show="!loading && cartItems.length === 0" class="text-center py-12 bg-white dark:bg-gray-800 rounded-lg border-2 border-dashed border-gray-300 dark:border-gray-600">
        <span class="mx-auto h-12 w-12 text-gray-400 mb-4 block" x-html="$icon('shopping-bag', 'h-12 w-12 mx-auto')"></span>
        <h3 class="text-xl font-semibold text-gray-700 dark:text-gray-200 mb-2">Your cart is empty</h3>
        <p class="text-gray-500 dark:text-gray-400 mb-6">Add some products before checking out.</p>
        <a href="{{ base_url }}shop/products" class="inline-block px-6 py-3 text-white rounded-lg transition-colors" style="background-color: var(--color-primary)">
            Browse Products
        </a>
    </div>

    {# Checkout Form #}
    <div x-show="!loading && cartItems.length > 0" x-cloak>
        <form @submit.prevent="placeOrder()" class="grid grid-cols-1 lg:grid-cols-3 gap-8">

            {# Left Column - Forms #}
            <div class="lg:col-span-2 space-y-6">

                {# Step Indicator #}
                <div class="flex items-center justify-center mb-8">
                    <div class="flex items-center">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full text-white text-sm font-bold" style="background-color: var(--color-primary)">1</div>
                        <span class="ml-2 text-sm font-medium text-gray-900 dark:text-white">Information</span>
                    </div>
                    <div class="w-16 h-0.5 mx-4 bg-gray-300 dark:bg-gray-600"></div>
                    <div class="flex items-center">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full text-white text-sm font-bold" :class="step >= 2 ? '' : 'bg-gray-300 dark:bg-gray-600'" :style="step >= 2 ? 'background-color: var(--color-primary)' : ''">2</div>
                        <span class="ml-2 text-sm font-medium" :class="step >= 2 ? 'text-gray-900 dark:text-white' : 'text-gray-400'">Shipping</span>
                    </div>
                    <div class="w-16 h-0.5 mx-4 bg-gray-300 dark:bg-gray-600"></div>
                    <div class="flex items-center">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full text-white text-sm font-bold" :class="step >= 3 ? '' : 'bg-gray-300 dark:bg-gray-600'" :style="step >= 3 ? 'background-color: var(--color-primary)' : ''">3</div>
                        <span class="ml-2 text-sm font-medium" :class="step >= 3 ? 'text-gray-900 dark:text-white' : 'text-gray-400'">Review</span>
                    </div>
                </div>

                {# Error Message #}
                <div x-show="error" class="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg p-4">
                    <div class="flex">
                        <span class="h-5 w-5 text-red-400" x-html="$icon('x-circle', 'h-5 w-5')"></span>
                        <p class="ml-3 text-sm text-red-700 dark:text-red-300" x-text="error"></p>
                    </div>
                </div>

                {# Step 1: Contact & Shipping Address #}
                <div x-show="step === 1" class="space-y-6">

                    {# Contact Information #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <h2 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Contact Information</h2>

                        <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">First Name *</label>
                                <input type="text" x-model="customer.first_name" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Last Name *</label>
                                <input type="text" x-model="customer.last_name" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Email *</label>
                                <input type="email" x-model="customer.email" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Phone</label>
                                <input type="tel" x-model="customer.phone"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                        </div>
                    </div>

                    {# Shipping Address #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <h2 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Shipping Address</h2>

                        {# Saved Addresses Selector (only shown for logged in customers) #}
                        <div x-show="isLoggedIn && shippingAddresses.length > 0" class="mb-4">
                            <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Use a saved address</label>
                            <select x-model="selectedShippingAddressId" @change="populateFromSavedAddress('shipping')"
                                    class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                                <option value="">Enter a new address</option>
                                <template x-for="addr in shippingAddresses" :key="addr.id">
                                    <option :value="addr.id" x-text="formatAddressOption(addr)"></option>
                                </template>
                            </select>
                        </div>

                        <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">First Name *</label>
                                <input type="text" x-model="shippingAddress.first_name" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Last Name *</label>
                                <input type="text" x-model="shippingAddress.last_name" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Company</label>
                                <input type="text" x-model="shippingAddress.company"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Address *</label>
                                <input type="text" x-model="shippingAddress.address_line_1" required placeholder="Street and number"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Address Line 2</label>
                                <input type="text" x-model="shippingAddress.address_line_2" placeholder="Apartment, suite, etc."
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Postal Code *</label>
                                <input type="text" x-model="shippingAddress.postal_code" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">City *</label>
                                <input type="text" x-model="shippingAddress.city" required
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Country *</label>
                                <select x-model="shippingAddress.country_iso" required
                                        class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                                    <option value="">Select a country</option>
                                    <template x-for="country in countries" :key="country.code">
                                        <option :value="country.code" x-text="country.name"></option>
                                    </template>
                                </select>
                            </div>

                            {# Save Address Checkbox (only for new addresses when logged in) #}
                            <div x-show="isLoggedIn && !selectedShippingAddressId" class="md:col-span-2">
                                <label class="flex items-center cursor-pointer">
                                    <input type="checkbox" x-model="saveShippingAddress" class="w-4 h-4 text-primary border-gray-300 rounded focus:ring-primary">
                                    <span class="ml-2 text-sm text-gray-600 dark:text-gray-400">Save this address for future orders</span>
                                </label>
                            </div>
                        </div>
                    </div>

                    {# Billing Address #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <div class="flex items-center justify-between mb-4">
                            <h2 class="text-lg font-semibold text-gray-900 dark:text-white">Billing Address</h2>
                            <label class="flex items-center cursor-pointer">
                                <input type="checkbox" x-model="sameAsShipping" class="w-4 h-4 text-primary border-gray-300 rounded focus:ring-primary">
                                <span class="ml-2 text-sm text-gray-600 dark:text-gray-400">Same as shipping</span>
                            </label>
                        </div>

                        {# Saved Addresses Selector (only shown for logged in customers when not same as shipping) #}
                        <div x-show="isLoggedIn && !sameAsShipping && billingAddresses.length > 0" class="mb-4">
                            <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Use a saved address</label>
                            <select x-model="selectedBillingAddressId" @change="populateFromSavedAddress('billing')"
                                    class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                                <option value="">Enter a new address</option>
                                <template x-for="addr in billingAddresses" :key="addr.id">
                                    <option :value="addr.id" x-text="formatAddressOption(addr)"></option>
                                </template>
                            </select>
                        </div>

                        <div x-show="!sameAsShipping" x-collapse class="grid grid-cols-1 md:grid-cols-2 gap-4">
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">First Name *</label>
                                <input type="text" x-model="billingAddress.first_name" :required="!sameAsShipping"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Last Name *</label>
                                <input type="text" x-model="billingAddress.last_name" :required="!sameAsShipping"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Company</label>
                                <input type="text" x-model="billingAddress.company"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Address *</label>
                                <input type="text" x-model="billingAddress.address_line_1" :required="!sameAsShipping"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Address Line 2</label>
                                <input type="text" x-model="billingAddress.address_line_2"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Postal Code *</label>
                                <input type="text" x-model="billingAddress.postal_code" :required="!sameAsShipping"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div>
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">City *</label>
                                <input type="text" x-model="billingAddress.city" :required="!sameAsShipping"
                                       class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                            </div>
                            <div class="md:col-span-2">
                                <label class="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">Country *</label>
                                <select x-model="billingAddress.country_iso" :required="!sameAsShipping"
                                        class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white">
                                    <option value="">Select a country</option>
                                    <template x-for="country in countries" :key="country.code">
                                        <option :value="country.code" x-text="country.name"></option>
                                    </template>
                                </select>
                            </div>

                            {# Save Address Checkbox (only for new addresses when logged in) #}
                            <div x-show="isLoggedIn && !selectedBillingAddressId" class="md:col-span-2">
                                <label class="flex items-center cursor-pointer">
                                    <input type="checkbox" x-model="saveBillingAddress" class="w-4 h-4 text-primary border-gray-300 rounded focus:ring-primary">
                                    <span class="ml-2 text-sm text-gray-600 dark:text-gray-400">Save this address for future orders</span>
                                </label>
                            </div>
                        </div>
                    </div>

                    <div class="flex justify-end">
                        <button type="button" @click="goToStep(2)"
                                class="px-6 py-3 text-white rounded-lg font-semibold transition-colors"
                                style="background-color: var(--color-primary)">
                            Continue to Shipping
                        </button>
                    </div>
                </div>

                {# Step 2: Shipping Method #}
                <div x-show="step === 2" class="space-y-6">
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <h2 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Shipping Method</h2>

                        <div class="space-y-3">
                            <label class="flex items-center p-4 border-2 rounded-lg cursor-pointer transition-colors"
                                   :class="shippingMethod === 'standard' ? 'border-primary bg-primary/5' : 'border-gray-200 dark:border-gray-600 hover:border-gray-300'"
                                   :style="shippingMethod === 'standard' ? 'border-color: var(--color-primary)' : ''">
                                <input type="radio" name="shipping" value="standard" x-model="shippingMethod" class="hidden">
                                <div class="flex-1">
                                    <p class="font-medium text-gray-900 dark:text-white">Standard Shipping</p>
                                    <p class="text-sm text-gray-500 dark:text-gray-400">3-5 business days</p>
                                </div>
                                <span class="font-semibold text-gray-900 dark:text-white" x-text="subtotal >= 50 ? 'FREE' : '5.99'"></span>
                            </label>

                            <label class="flex items-center p-4 border-2 rounded-lg cursor-pointer transition-colors"
                                   :class="shippingMethod === 'express' ? 'border-primary bg-primary/5' : 'border-gray-200 dark:border-gray-600 hover:border-gray-300'"
                                   :style="shippingMethod === 'express' ? 'border-color: var(--color-primary)' : ''">
                                <input type="radio" name="shipping" value="express" x-model="shippingMethod" class="hidden">
                                <div class="flex-1">
                                    <p class="font-medium text-gray-900 dark:text-white">Express Shipping</p>
                                    <p class="text-sm text-gray-500 dark:text-gray-400">1-2 business days</p>
                                </div>
                                <span class="font-semibold text-gray-900 dark:text-white">9.99</span>
                            </label>
                        </div>
                    </div>

                    {# Order Notes #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <h2 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Order Notes (Optional)</h2>
                        <textarea x-model="customerNotes" rows="3" placeholder="Special instructions for your order..."
                                  class="w-full px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-lg focus:ring-2 focus:ring-primary focus:border-transparent dark:bg-gray-700 dark:text-white"></textarea>
                    </div>

                    <div class="flex justify-between">
                        <button type="button" @click="goToStep(1)"
                                class="px-6 py-3 border border-gray-300 dark:border-gray-600 rounded-lg font-semibold hover:bg-gray-50 dark:hover:bg-gray-700 transition-colors">
                            Back
                        </button>
                        <button type="button" @click="goToStep(3)"
                                class="px-6 py-3 text-white rounded-lg font-semibold transition-colors"
                                style="background-color: var(--color-primary)">
                            Review Order
                        </button>
                    </div>
                </div>

                {# Step 3: Review & Place Order #}
                <div x-show="step === 3" class="space-y-6">
                    {# Review Contact Info #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <div class="flex items-center justify-between mb-4">
                            <h2 class="text-lg font-semibold text-gray-900 dark:text-white">Contact Information</h2>
                            <button type="button" @click="goToStep(1)" class="text-sm text-primary hover:underline" style="color: var(--color-primary)">Edit</button>
                        </div>
                        <p class="text-gray-700 dark:text-gray-300" x-text="customer.first_name + ' ' + customer.last_name"></p>
                        <p class="text-gray-600 dark:text-gray-400" x-text="customer.email"></p>
                        <p x-show="customer.phone" class="text-gray-600 dark:text-gray-400" x-text="customer.phone"></p>
                    </div>

                    {# Review Addresses #}
                    <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                        <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                            <div class="flex items-center justify-between mb-4">
                                <h2 class="text-lg font-semibold text-gray-900 dark:text-white">Shipping Address</h2>
                                <button type="button" @click="goToStep(1)" class="text-sm text-primary hover:underline" style="color: var(--color-primary)">Edit</button>
                            </div>
                            <div class="text-gray-600 dark:text-gray-400 text-sm space-y-1">
                                <p class="font-medium text-gray-900 dark:text-white" x-text="shippingAddress.first_name + ' ' + shippingAddress.last_name"></p>
                                <p x-show="shippingAddress.company" x-text="shippingAddress.company"></p>
                                <p x-text="shippingAddress.address_line_1"></p>
                                <p x-show="shippingAddress.address_line_2" x-text="shippingAddress.address_line_2"></p>
                                <p x-text="shippingAddress.postal_code + ' ' + shippingAddress.city"></p>
                                <p x-text="getCountryName(shippingAddress.country_iso)"></p>
                            </div>
                        </div>

                        <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                            <div class="flex items-center justify-between mb-4">
                                <h2 class="text-lg font-semibold text-gray-900 dark:text-white">Billing Address</h2>
                                <button type="button" @click="goToStep(1)" class="text-sm text-primary hover:underline" style="color: var(--color-primary)">Edit</button>
                            </div>
                            <div class="text-gray-600 dark:text-gray-400 text-sm space-y-1">
                                <template x-if="sameAsShipping">
                                    <p class="italic">Same as shipping address</p>
                                </template>
                                <template x-if="!sameAsShipping">
                                    <div>
                                        <p class="font-medium text-gray-900 dark:text-white" x-text="billingAddress.first_name + ' ' + billingAddress.last_name"></p>
                                        <p x-show="billingAddress.company" x-text="billingAddress.company"></p>
                                        <p x-text="billingAddress.address_line_1"></p>
                                        <p x-show="billingAddress.address_line_2" x-text="billingAddress.address_line_2"></p>
                                        <p x-text="billingAddress.postal_code + ' ' + billingAddress.city"></p>
                                        <p x-text="getCountryName(billingAddress.country_iso)"></p>
                                    </div>
                                </template>
                            </div>
                        </div>
                    </div>

                    {# Review Shipping #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <div class="flex items-center justify-between mb-4">
                            <h2 class="text-lg font-semibold text-gray-900 dark:text-white">Shipping Method</h2>
                            <button type="button" @click="goToStep(2)" class="text-sm text-primary hover:underline" style="color: var(--color-primary)">Edit</button>
                        </div>
                        <p class="text-gray-700 dark:text-gray-300" x-text="shippingMethod === 'express' ? 'Express Shipping (1-2 business days)' : 'Standard Shipping (3-5 business days)'"></p>
                    </div>

                    {# Order Items Review #}
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <h2 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Order Items</h2>
                        <div class="divide-y divide-gray-200 dark:divide-gray-700">
                            <template x-for="item in cartItems" :key="item.product_id">
                                <div class="py-4 flex items-center gap-4">
                                    <img :src="item.image_url || '/static/shop/img/placeholder.svg'"
                                         @error="$el.src = '/static/shop/img/placeholder.svg'"
                                         class="w-16 h-16 object-cover rounded-lg">
                                    <div class="flex-1 min-w-0">
                                        <p class="font-medium text-gray-900 dark:text-white truncate" x-text="item.name"></p>
                                        <p class="text-sm text-gray-500 dark:text-gray-400">Qty: <span x-text="item.quantity"></span></p>
                                    </div>
                                    <p class="font-semibold text-gray-900 dark:text-white" x-text="'€' + (parseFloat(item.price) * item.quantity).toFixed(2)"></p>
                                </div>
                            </template>
                        </div>
                    </div>

                    <div class="flex justify-between">
                        <button type="button" @click="goToStep(2)"
                                class="px-6 py-3 border border-gray-300 dark:border-gray-600 rounded-lg font-semibold hover:bg-gray-50 dark:hover:bg-gray-700 transition-colors">
                            Back
                        </button>
                        <button type="submit" :disabled="submitting"
                                class="px-8 py-3 text-white rounded-lg font-semibold transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
                                style="background-color: var(--color-primary)">
                            <span x-show="!submitting">Place Order</span>
                            <span x-show="submitting" class="flex items-center">
                                <span class="-ml-1 mr-2 h-5 w-5" x-html="$icon('spinner', 'h-5 w-5 animate-spin')"></span>
                                Processing...
                            </span>
                        </button>
                    </div>
                </div>

            </div>

            {# Right Column - Order Summary #}
            <div class="lg:col-span-1">
                <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6 sticky top-4">
                    <h3 class="text-xl font-semibold text-gray-900 dark:text-white mb-6 pb-4 border-b border-gray-200 dark:border-gray-700">
                        Order Summary
                    </h3>

                    {# Cart Items Preview #}
                    <div class="space-y-3 mb-6 max-h-64 overflow-y-auto">
                        <template x-for="item in cartItems" :key="item.product_id">
                            <div class="flex items-center gap-3">
                                <div class="relative">
                                    <img :src="item.image_url || '/static/shop/img/placeholder.svg'"
                                         @error="$el.src = '/static/shop/img/placeholder.svg'"
                                         class="w-12 h-12 object-cover rounded">
                                    <span class="absolute -top-2 -right-2 w-5 h-5 bg-gray-500 text-white text-xs rounded-full flex items-center justify-center" x-text="item.quantity"></span>
                                </div>
                                <div class="flex-1 min-w-0">
                                    <p class="text-sm font-medium text-gray-900 dark:text-white truncate" x-text="item.name"></p>
                                </div>
                                <p class="text-sm font-medium text-gray-900 dark:text-white" x-text="'€' + (parseFloat(item.price) * item.quantity).toFixed(2)"></p>
                            </div>
                        </template>
                    </div>

                    {# Totals #}
                    <div class="space-y-3 border-t border-gray-200 dark:border-gray-700 pt-4">
                        <div class="flex justify-between text-sm">
                            <span class="text-gray-600 dark:text-gray-400">Subtotal</span>
                            <span class="font-medium text-gray-900 dark:text-white" x-text="'€' + subtotal.toFixed(2)"></span>
                        </div>
                        <div class="flex justify-between text-sm">
                            <span class="text-gray-600 dark:text-gray-400">Shipping</span>
                            <span class="font-medium text-gray-900 dark:text-white" x-text="shippingCost === 0 ? 'FREE' : '€' + shippingCost.toFixed(2)"></span>
                        </div>
                        <div class="flex justify-between text-sm">
                            <span class="text-gray-600 dark:text-gray-400">Tax (incl.)</span>
                            <span class="font-medium text-gray-900 dark:text-white" x-text="'€' + tax.toFixed(2)"></span>
                        </div>
                        <div class="flex justify-between text-lg font-bold pt-3 border-t border-gray-200 dark:border-gray-700">
                            <span class="text-gray-900 dark:text-white">Total</span>
                            <span style="color: var(--color-primary)" x-text="'€' + total.toFixed(2)"></span>
                        </div>
                    </div>

                    <p class="text-xs text-gray-500 dark:text-gray-400 mt-4 text-center">
                        Free shipping on orders over €50
                    </p>
                </div>
            </div>

        </form>
    </div>

</div>
{% endblock %}

{% block extra_scripts %}
<script>
function checkoutPage() {
    return {
        ...shopLayoutData(),

        // State
        loading: true,
        submitting: false,
        error: '',
        step: 1,

        // Cart data
        cartItems: [],

        // Customer info
        customer: {
            first_name: '',
            last_name: '',
            email: '',
            phone: ''
        },

        // Saved addresses (for logged in customers)
        isLoggedIn: false,
        savedAddresses: [],
        selectedShippingAddressId: '',
        selectedBillingAddressId: '',
        saveShippingAddress: false,
        saveBillingAddress: false,

        // Computed filtered addresses by type
        get shippingAddresses() {
            return this.savedAddresses.filter(a => a.address_type === 'shipping');
        },
        get billingAddresses() {
            return this.savedAddresses.filter(a => a.address_type === 'billing');
        },

        // Shipping address
        shippingAddress: {
            first_name: '',
            last_name: '',
            company: '',
            address_line_1: '',
            address_line_2: '',
            city: '',
            postal_code: '',
            country_iso: 'LU'
        },

        // Billing address
        billingAddress: {
            first_name: '',
            last_name: '',
            company: '',
            address_line_1: '',
            address_line_2: '',
            city: '',
            postal_code: '',
            country_iso: 'LU'
        },

        sameAsShipping: true,
        shippingMethod: 'standard',
        customerNotes: '',

        // Countries list
        countries: [
            { code: 'LU', name: 'Luxembourg' },
            { code: 'DE', name: 'Germany' },
            { code: 'FR', name: 'France' },
            { code: 'BE', name: 'Belgium' },
            { code: 'NL', name: 'Netherlands' },
            { code: 'AT', name: 'Austria' },
            { code: 'IT', name: 'Italy' },
            { code: 'ES', name: 'Spain' },
            { code: 'PT', name: 'Portugal' },
            { code: 'PL', name: 'Poland' },
            { code: 'CZ', name: 'Czech Republic' },
            { code: 'SK', name: 'Slovakia' },
            { code: 'HU', name: 'Hungary' },
            { code: 'SI', name: 'Slovenia' },
            { code: 'HR', name: 'Croatia' },
            { code: 'RO', name: 'Romania' },
            { code: 'BG', name: 'Bulgaria' },
            { code: 'GR', name: 'Greece' },
            { code: 'IE', name: 'Ireland' },
            { code: 'DK', name: 'Denmark' },
            { code: 'SE', name: 'Sweden' },
            { code: 'FI', name: 'Finland' },
            { code: 'EE', name: 'Estonia' },
            { code: 'LV', name: 'Latvia' },
            { code: 'LT', name: 'Lithuania' },
            { code: 'MT', name: 'Malta' },
            { code: 'CY', name: 'Cyprus' }
        ],

        // Computed
        get subtotal() {
            return this.cartItems.reduce((sum, item) => sum + (parseFloat(item.price) * item.quantity), 0);
        },

        get shippingCost() {
            if (this.shippingMethod === 'express') return 9.99;
            return this.subtotal >= 50 ? 0 : 5.99;
        },

        get tax() {
            // VAT is included in price, calculate the VAT portion (17% for LU)
            const vatRate = 0.17;
            return this.subtotal * vatRate / (1 + vatRate);
        },

        get total() {
            return this.subtotal + this.shippingCost;
        },

        async init() {
            console.log('[CHECKOUT] Initializing...');

            // Initialize session
            if (typeof shopLayoutData === 'function') {
                const baseData = shopLayoutData();
                if (baseData.init) {
                    baseData.init.call(this);
                }
            }

            // Check if customer is logged in and pre-fill data
            await this.loadCustomerData();

            // Load cart
            await this.loadCart();
        },

        async loadCustomerData() {
            try {
                const response = await fetch('/api/v1/shop/auth/me');
                if (response.ok) {
                    const data = await response.json();
                    this.isLoggedIn = true;

                    // Pre-fill customer info
                    this.customer.first_name = data.first_name || '';
                    this.customer.last_name = data.last_name || '';
                    this.customer.email = data.email || '';
                    this.customer.phone = data.phone || '';

                    // Pre-fill shipping address with customer name
                    this.shippingAddress.first_name = data.first_name || '';
                    this.shippingAddress.last_name = data.last_name || '';

                    console.log('[CHECKOUT] Customer data loaded');

                    // Load saved addresses for logged in customer
                    await this.loadSavedAddresses();
                }
            } catch (error) {
                console.log('[CHECKOUT] No customer logged in or error:', error);
                this.isLoggedIn = false;
            }
        },

        async loadSavedAddresses() {
            try {
                const response = await fetch('/api/v1/shop/addresses');
                if (response.ok) {
                    const data = await response.json();
                    this.savedAddresses = data.addresses || [];
                    console.log('[CHECKOUT] Saved addresses loaded:', this.savedAddresses.length);

                    // Auto-select default shipping address
                    const defaultShipping = this.shippingAddresses.find(a => a.is_default);
                    if (defaultShipping) {
                        this.selectedShippingAddressId = defaultShipping.id;
                        this.populateFromSavedAddress('shipping');
                    }

                    // Auto-select default billing address
                    const defaultBilling = this.billingAddresses.find(a => a.is_default);
                    if (defaultBilling) {
                        this.selectedBillingAddressId = defaultBilling.id;
                        this.populateFromSavedAddress('billing');
                    }
                }
            } catch (error) {
                console.error('[CHECKOUT] Failed to load saved addresses:', error);
            }
        },

        populateFromSavedAddress(type) {
            const addressId = type === 'shipping' ? this.selectedShippingAddressId : this.selectedBillingAddressId;
            const addresses = type === 'shipping' ? this.shippingAddresses : this.billingAddresses;
            const targetAddress = type === 'shipping' ? this.shippingAddress : this.billingAddress;

            if (!addressId) {
                // Clear form when "Enter a new address" is selected
                targetAddress.first_name = type === 'shipping' ? this.customer.first_name : '';
                targetAddress.last_name = type === 'shipping' ? this.customer.last_name : '';
                targetAddress.company = '';
                targetAddress.address_line_1 = '';
                targetAddress.address_line_2 = '';
                targetAddress.city = '';
                targetAddress.postal_code = '';
                targetAddress.country_iso = 'LU';
                return;
            }

            const savedAddr = addresses.find(a => a.id == addressId);
            if (savedAddr) {
                targetAddress.first_name = savedAddr.first_name || '';
                targetAddress.last_name = savedAddr.last_name || '';
                targetAddress.company = savedAddr.company || '';
                targetAddress.address_line_1 = savedAddr.address_line_1 || '';
                targetAddress.address_line_2 = savedAddr.address_line_2 || '';
                targetAddress.city = savedAddr.city || '';
                targetAddress.postal_code = savedAddr.postal_code || '';
                targetAddress.country_iso = savedAddr.country_iso || 'LU';
                console.log(`[CHECKOUT] Populated ${type} address from saved:`, savedAddr.id);
            }
        },

        formatAddressOption(addr) {
            const name = `${addr.first_name} ${addr.last_name}`.trim();
            const location = `${addr.address_line_1}, ${addr.postal_code} ${addr.city}`;
            const defaultBadge = addr.is_default ? ' (Default)' : '';
            return `${name} - ${location}${defaultBadge}`;
        },

        async loadCart() {
            this.loading = true;
            try {
                const response = await fetch(`/api/v1/shop/cart/${this.sessionId}`);
                if (response.ok) {
                    const data = await response.json();
                    this.cartItems = data.items || [];
                    console.log('[CHECKOUT] Cart loaded:', this.cartItems.length, 'items');
                }
            } catch (error) {
                console.error('[CHECKOUT] Failed to load cart:', error);
                this.error = 'Failed to load cart';
            } finally {
                this.loading = false;
            }
        },

        goToStep(newStep) {
            // Validate current step before moving forward
            if (newStep > this.step) {
                if (this.step === 1 && !this.validateStep1()) {
                    return;
                }
            }
            this.step = newStep;
            window.scrollTo({ top: 0, behavior: 'smooth' });
        },

        validateStep1() {
            // Validate customer info
            if (!this.customer.first_name || !this.customer.last_name || !this.customer.email) {
                this.error = 'Please fill in all required contact fields';
                return false;
            }

            // Validate email format
            const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
            if (!emailRegex.test(this.customer.email)) {
                this.error = 'Please enter a valid email address';
                return false;
            }

            // Validate shipping address
            if (!this.shippingAddress.first_name || !this.shippingAddress.last_name ||
                !this.shippingAddress.address_line_1 || !this.shippingAddress.city ||
                !this.shippingAddress.postal_code || !this.shippingAddress.country_iso) {
                this.error = 'Please fill in all required shipping address fields';
                return false;
            }

            // Validate billing address if not same as shipping
            if (!this.sameAsShipping) {
                if (!this.billingAddress.first_name || !this.billingAddress.last_name ||
                    !this.billingAddress.address_line_1 || !this.billingAddress.city ||
                    !this.billingAddress.postal_code || !this.billingAddress.country_iso) {
                    this.error = 'Please fill in all required billing address fields';
                    return false;
                }
            }

            this.error = '';
            return true;
        },

        getCountryName(code) {
            const country = this.countries.find(c => c.code === code);
            return country ? country.name : code;
        },

        async saveNewAddresses() {
            // Save shipping address if checkbox is checked and it's a new address
            if (this.saveShippingAddress && !this.selectedShippingAddressId) {
                try {
                    const country = this.countries.find(c => c.code === this.shippingAddress.country_iso);
                    const addressData = {
                        address_type: 'shipping',
                        first_name: this.shippingAddress.first_name,
                        last_name: this.shippingAddress.last_name,
                        company: this.shippingAddress.company || null,
                        address_line_1: this.shippingAddress.address_line_1,
                        address_line_2: this.shippingAddress.address_line_2 || null,
                        city: this.shippingAddress.city,
                        postal_code: this.shippingAddress.postal_code,
                        country_name: country ? country.name : this.shippingAddress.country_iso,
                        country_iso: this.shippingAddress.country_iso,
                        is_default: this.shippingAddresses.length === 0  // Make default if first address
                    };
                    const response = await fetch('/api/v1/shop/addresses', {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify(addressData)
                    });
                    if (response.ok) {
                        console.log('[CHECKOUT] Shipping address saved');
                    }
                } catch (error) {
                    console.error('[CHECKOUT] Failed to save shipping address:', error);
                }
            }

            // Save billing address if checkbox is checked, it's a new address, and not same as shipping
            if (this.saveBillingAddress && !this.selectedBillingAddressId && !this.sameAsShipping) {
                try {
                    const country = this.countries.find(c => c.code === this.billingAddress.country_iso);
                    const addressData = {
                        address_type: 'billing',
                        first_name: this.billingAddress.first_name,
                        last_name: this.billingAddress.last_name,
                        company: this.billingAddress.company || null,
                        address_line_1: this.billingAddress.address_line_1,
                        address_line_2: this.billingAddress.address_line_2 || null,
                        city: this.billingAddress.city,
                        postal_code: this.billingAddress.postal_code,
                        country_name: country ? country.name : this.billingAddress.country_iso,
                        country_iso: this.billingAddress.country_iso,
                        is_default: this.billingAddresses.length === 0  // Make default if first address
                    };
                    const response = await fetch('/api/v1/shop/addresses', {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify(addressData)
                    });
                    if (response.ok) {
                        console.log('[CHECKOUT] Billing address saved');
                    }
                } catch (error) {
                    console.error('[CHECKOUT] Failed to save billing address:', error);
                }
            }
        },

        async placeOrder() {
            this.error = '';
            this.submitting = true;

            try {
                // Save new addresses if requested (only for logged in users with new addresses)
                if (this.isLoggedIn) {
                    await this.saveNewAddresses();
                }

                // Build order data
                const orderData = {
                    items: this.cartItems.map(item => ({
                        product_id: item.product_id,
                        quantity: item.quantity
                    })),
                    customer: {
                        first_name: this.customer.first_name,
                        last_name: this.customer.last_name,
                        email: this.customer.email,
                        phone: this.customer.phone || null
                    },
                    shipping_address: {
                        first_name: this.shippingAddress.first_name,
                        last_name: this.shippingAddress.last_name,
                        company: this.shippingAddress.company || null,
                        address_line_1: this.shippingAddress.address_line_1,
                        address_line_2: this.shippingAddress.address_line_2 || null,
                        city: this.shippingAddress.city,
                        postal_code: this.shippingAddress.postal_code,
                        country_iso: this.shippingAddress.country_iso
                    },
                    billing_address: this.sameAsShipping ? null : {
                        first_name: this.billingAddress.first_name,
                        last_name: this.billingAddress.last_name,
                        company: this.billingAddress.company || null,
                        address_line_1: this.billingAddress.address_line_1,
                        address_line_2: this.billingAddress.address_line_2 || null,
                        city: this.billingAddress.city,
                        postal_code: this.billingAddress.postal_code,
                        country_iso: this.billingAddress.country_iso
                    },
                    shipping_method: this.shippingMethod,
                    customer_notes: this.customerNotes || null,
                    session_id: this.sessionId
                };

                console.log('[CHECKOUT] Placing order:', orderData);

                const response = await fetch('/api/v1/shop/orders', {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    body: JSON.stringify(orderData)
                });

                if (!response.ok) {
                    const errorData = await response.json();
                    throw new Error(errorData.detail || 'Failed to place order');
                }

                const order = await response.json();
                console.log('[CHECKOUT] Order placed:', order.order_number);

                // Redirect to confirmation page
                window.location.href = '{{ base_url }}shop/order-confirmation?order=' + order.order_number;

            } catch (error) {
                console.error('[CHECKOUT] Error placing order:', error);
                this.error = error.message || 'Failed to place order. Please try again.';
            } finally {
                this.submitting = false;
            }
        }
    };
}
</script>
{% endblock %}