{# app/templates/shop/account/order-detail.html #}
{% extends "shop/base.html" %}

{% block title %}Order Details - {{ vendor.name }}{% endblock %}

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

{% block content %}
<div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
    <!-- Breadcrumb -->
    <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/account/dashboard" class="hover:text-primary">My Account</a>
            </li>
            <li class="flex items-center">
                <span class="h-4 w-4 mx-2" x-html="$icon('chevron-right', 'h-4 w-4')"></span>
                <a href="{{ base_url }}shop/account/orders" class="hover:text-primary">Orders</a>
            </li>
            <li class="flex items-center">
                <span class="h-4 w-4 mx-2" x-html="$icon('chevron-right', 'h-4 w-4')"></span>
                <span class="text-gray-900 dark:text-white" x-text="order?.order_number || 'Order Details'"></span>
            </li>
        </ol>
    </nav>

    <!-- 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>

    <!-- Error State -->
    <div x-show="error && !loading" class="bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg p-6">
        <div class="flex">
            <span class="h-6 w-6 text-red-400" x-html="$icon('x-circle', 'h-6 w-6')"></span>
            <div class="ml-3">
                <h3 class="text-lg font-medium text-red-800 dark:text-red-200">Error loading order</h3>
                <p class="mt-1 text-sm text-red-700 dark:text-red-300" x-text="error"></p>
                <a href="{{ base_url }}shop/account/orders"
                   class="mt-4 inline-flex items-center px-4 py-2 border border-transparent rounded-md shadow-sm text-sm font-medium text-white bg-red-600 hover:bg-red-700">
                    Back to Orders
                </a>
            </div>
        </div>
    </div>

    <!-- Order Content -->
    <div x-show="!loading && !error && order" x-cloak>
        <!-- Page Header -->
        <div class="mb-8 flex flex-wrap items-start justify-between gap-4">
            <div>
                <h1 class="text-3xl font-bold text-gray-900 dark:text-white" x-text="'Order ' + order.order_number"></h1>
                <p class="mt-2 text-gray-600 dark:text-gray-400">
                    Placed on <span x-text="formatDateTime(order.order_date || order.created_at)"></span>
                </p>
            </div>
            <span class="inline-flex items-center px-3 py-1 rounded-full text-sm font-medium"
                  :class="getStatusClass(order.status)">
                <span x-text="getStatusLabel(order.status)"></span>
            </span>
        </div>

        <!-- Order Tracking Timeline -->
        <div class="mb-8 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-6">Order Progress</h2>
            <div class="relative">
                <!-- Timeline Line -->
                <div class="absolute left-4 top-0 bottom-0 w-0.5 bg-gray-200 dark:bg-gray-700"></div>

                <!-- Timeline Steps -->
                <div class="space-y-6">
                    <!-- Pending -->
                    <div class="relative flex items-start">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full shrink-0 z-10"
                             :class="getTimelineStepClass('pending')">
                            <span class="w-4 h-4" x-html="$icon('check-circle', 'w-4 h-4')"></span>
                        </div>
                        <div class="ml-4">
                            <p class="font-medium text-gray-900 dark:text-white">Order Placed</p>
                            <p class="text-sm text-gray-500 dark:text-gray-400" x-text="formatDateTime(order.order_date || order.created_at)"></p>
                        </div>
                    </div>

                    <!-- Processing -->
                    <div class="relative flex items-start">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full shrink-0 z-10"
                             :class="getTimelineStepClass('processing')">
                            <span x-show="isStepComplete('processing')" class="w-4 h-4" x-html="$icon('check-circle', 'w-4 h-4')"></span>
                            <span x-show="!isStepComplete('processing')" class="w-4 h-4" x-html="$icon('clock', 'w-4 h-4')"></span>
                        </div>
                        <div class="ml-4">
                            <p class="font-medium" :class="isStepComplete('processing') ? 'text-gray-900 dark:text-white' : 'text-gray-400 dark:text-gray-500'">Processing</p>
                            <p class="text-sm text-gray-500 dark:text-gray-400" x-show="order.confirmed_at" x-text="formatDateTime(order.confirmed_at)"></p>
                        </div>
                    </div>

                    <!-- Shipped -->
                    <div class="relative flex items-start">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full shrink-0 z-10"
                             :class="getTimelineStepClass('shipped')">
                            <span x-show="isStepComplete('shipped')" class="w-4 h-4" x-html="$icon('check-circle', 'w-4 h-4')"></span>
                            <span x-show="!isStepComplete('shipped')" class="w-4 h-4" x-html="$icon('truck', 'w-4 h-4')"></span>
                        </div>
                        <div class="ml-4">
                            <p class="font-medium" :class="isStepComplete('shipped') ? 'text-gray-900 dark:text-white' : 'text-gray-400 dark:text-gray-500'">Shipped</p>
                            <p class="text-sm text-gray-500 dark:text-gray-400" x-show="order.shipped_at" x-text="formatDateTime(order.shipped_at)"></p>
                        </div>
                    </div>

                    <!-- Delivered -->
                    <div class="relative flex items-start">
                        <div class="flex items-center justify-center w-8 h-8 rounded-full shrink-0 z-10"
                             :class="getTimelineStepClass('delivered')">
                            <span x-show="isStepComplete('delivered')" class="w-4 h-4" x-html="$icon('check-circle', 'w-4 h-4')"></span>
                            <span x-show="!isStepComplete('delivered')" class="w-4 h-4" x-html="$icon('gift', 'w-4 h-4')"></span>
                        </div>
                        <div class="ml-4">
                            <p class="font-medium" :class="isStepComplete('delivered') ? 'text-gray-900 dark:text-white' : 'text-gray-400 dark:text-gray-500'">Delivered</p>
                            <p class="text-sm text-gray-500 dark:text-gray-400" x-show="order.delivered_at" x-text="formatDateTime(order.delivered_at)"></p>
                        </div>
                    </div>
                </div>

                <!-- Cancelled/Refunded Notice -->
                <div x-show="order.status === 'cancelled' || order.status === 'refunded'"
                     class="mt-6 p-4 rounded-lg"
                     :class="order.status === 'cancelled' ? 'bg-red-50 dark:bg-red-900/20' : 'bg-gray-50 dark:bg-gray-700'">
                    <p class="text-sm font-medium"
                       :class="order.status === 'cancelled' ? 'text-red-800 dark:text-red-200' : 'text-gray-800 dark:text-gray-200'"
                       x-text="order.status === 'cancelled' ? 'This order was cancelled' : 'This order was refunded'"></p>
                    <p class="text-sm mt-1"
                       :class="order.status === 'cancelled' ? 'text-red-600 dark:text-red-300' : 'text-gray-600 dark:text-gray-400'"
                       x-show="order.cancelled_at"
                       x-text="'on ' + formatDateTime(order.cancelled_at)"></p>
                </div>
            </div>
        </div>

        <div class="grid grid-cols-1 lg:grid-cols-3 gap-8">
            <!-- Main Content (Left Column - 2/3) -->
            <div class="lg:col-span-2 space-y-6">

                <!-- Order Items -->
                <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700">
                    <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-700">
                        <h2 class="text-lg font-semibold text-gray-900 dark:text-white">Order Items</h2>
                    </div>
                    <div class="divide-y divide-gray-200 dark:divide-gray-700">
                        <template x-for="item in order.items" :key="item.id">
                            <div class="px-6 py-4 flex items-center gap-4">
                                <!-- Product Image Placeholder -->
                                <div class="flex-shrink-0 w-16 h-16 bg-gray-100 dark:bg-gray-700 rounded-lg flex items-center justify-center">
                                    <span class="h-8 w-8 text-gray-400" x-html="$icon('cube', 'h-8 w-8')"></span>
                                </div>
                                <!-- Product Info -->
                                <div class="flex-1 min-w-0">
                                    <p class="text-sm font-medium text-gray-900 dark:text-white" x-text="item.product_name"></p>
                                    <p class="text-sm text-gray-500 dark:text-gray-400">
                                        SKU: <span x-text="item.product_sku || '-'"></span>
                                    </p>
                                    <p class="text-sm text-gray-500 dark:text-gray-400">
                                        Qty: <span x-text="item.quantity"></span>
                                        &times;
                                        <span x-text="formatPrice(item.unit_price)"></span>
                                    </p>
                                </div>
                                <!-- Line Total -->
                                <div class="text-right">
                                    <p class="text-sm font-semibold text-gray-900 dark:text-white" x-text="formatPrice(item.total_price)"></p>
                                </div>
                            </div>
                        </template>
                    </div>
                </div>

                <!-- Addresses -->
                <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                    <!-- Shipping Address -->
                    <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                        <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4 flex items-center">
                            <span class="h-5 w-5 mr-2 text-gray-400" x-html="$icon('location-marker', 'h-5 w-5')"></span>
                            Shipping Address
                        </h3>
                        <div class="text-sm text-gray-600 dark:text-gray-300 space-y-1">
                            <p class="font-medium" x-text="(order.ship_first_name || '') + ' ' + (order.ship_last_name || '')"></p>
                            <p x-show="order.ship_company" x-text="order.ship_company"></p>
                            <p x-text="order.ship_address_line_1"></p>
                            <p x-show="order.ship_address_line_2" x-text="order.ship_address_line_2"></p>
                            <p x-text="(order.ship_postal_code || '') + ' ' + (order.ship_city || '')"></p>
                            <p x-text="order.ship_country_iso"></p>
                        </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">
                        <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4 flex items-center">
                            <span class="h-5 w-5 mr-2 text-gray-400" x-html="$icon('document-text', 'h-5 w-5')"></span>
                            Billing Address
                        </h3>
                        <div class="text-sm text-gray-600 dark:text-gray-300 space-y-1">
                            <p class="font-medium" x-text="(order.bill_first_name || '') + ' ' + (order.bill_last_name || '')"></p>
                            <p x-show="order.bill_company" x-text="order.bill_company"></p>
                            <p x-text="order.bill_address_line_1"></p>
                            <p x-show="order.bill_address_line_2" x-text="order.bill_address_line_2"></p>
                            <p x-text="(order.bill_postal_code || '') + ' ' + (order.bill_city || '')"></p>
                            <p x-text="order.bill_country_iso"></p>
                        </div>
                    </div>
                </div>

                <!-- Customer Notes -->
                <div x-show="order.customer_notes" class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                    <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4 flex items-center">
                        <span class="h-5 w-5 mr-2 text-gray-400" x-html="$icon('chat-bubble-left', 'h-5 w-5')"></span>
                        Order Notes
                    </h3>
                    <p class="text-sm text-gray-600 dark:text-gray-300" x-text="order.customer_notes"></p>
                </div>
            </div>

            <!-- Sidebar (Right Column - 1/3) -->
            <div class="space-y-6">
                <!-- Order Summary -->
                <div class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                    <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4">Order Summary</h3>
                    <dl class="space-y-3">
                        <div class="flex justify-between text-sm">
                            <dt class="text-gray-500 dark:text-gray-400">Subtotal</dt>
                            <dd class="font-medium text-gray-900 dark:text-white" x-text="formatPrice(order.subtotal)"></dd>
                        </div>
                        <div class="flex justify-between text-sm">
                            <dt class="text-gray-500 dark:text-gray-400">Shipping</dt>
                            <dd class="font-medium text-gray-900 dark:text-white" x-text="formatPrice(order.shipping_amount)"></dd>
                        </div>
                        <!-- VAT Breakdown -->
                        <div x-show="order.tax_amount > 0 || order.vat_rate_label" class="flex justify-between text-sm">
                            <dt class="text-gray-500 dark:text-gray-400">
                                <span x-text="order.vat_rate_label || 'Tax'"></span>
                                <span x-show="order.vat_rate" class="text-xs ml-1">(<span x-text="order.vat_rate"></span>%)</span>
                            </dt>
                            <dd class="font-medium text-gray-900 dark:text-white" x-text="formatPrice(order.tax_amount)"></dd>
                        </div>
                        <!-- VAT Regime Info (for special cases) -->
                        <div x-show="order.vat_regime === 'reverse_charge'" class="text-xs text-gray-500 dark:text-gray-400 bg-gray-50 dark:bg-gray-700/50 rounded p-2">
                            VAT Reverse Charge applies (B2B transaction)
                        </div>
                        <div x-show="order.vat_regime === 'exempt'" class="text-xs text-gray-500 dark:text-gray-400 bg-gray-50 dark:bg-gray-700/50 rounded p-2">
                            VAT Exempt (Non-EU destination)
                        </div>
                        <div x-show="order.discount_amount > 0" class="flex justify-between text-sm">
                            <dt class="text-gray-500 dark:text-gray-400">Discount</dt>
                            <dd class="font-medium text-green-600 dark:text-green-400" x-text="'-' + formatPrice(order.discount_amount)"></dd>
                        </div>
                        <div class="border-t border-gray-200 dark:border-gray-700 pt-3 flex justify-between">
                            <dt class="text-base font-semibold text-gray-900 dark:text-white">Total</dt>
                            <dd class="text-base font-bold text-gray-900 dark:text-white" x-text="formatPrice(order.total_amount)"></dd>
                        </div>
                    </dl>
                </div>

                <!-- Invoice Download -->
                <div x-show="canDownloadInvoice()" class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                    <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4 flex items-center">
                        <span class="h-5 w-5 mr-2 text-gray-400" x-html="$icon('document-text', 'h-5 w-5')"></span>
                        Invoice
                    </h3>
                    <p class="text-sm text-gray-600 dark:text-gray-400 mb-4">
                        Download your invoice for this order.
                    </p>
                    <button @click="downloadInvoice()"
                            :disabled="downloadingInvoice"
                            class="w-full inline-flex justify-center items-center px-4 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm text-sm font-medium text-gray-700 dark:text-gray-300 bg-white dark:bg-gray-700 hover:bg-gray-50 dark:hover:bg-gray-600 disabled:opacity-50 disabled:cursor-not-allowed transition-colors">
                        <span x-show="!downloadingInvoice" class="h-4 w-4 mr-2" x-html="$icon('arrow-down-tray', 'h-4 w-4')"></span>
                        <span x-show="downloadingInvoice" class="h-4 w-4 mr-2" x-html="$icon('spinner', 'h-4 w-4 animate-spin')"></span>
                        <span x-text="downloadingInvoice ? 'Generating...' : 'Download Invoice'"></span>
                    </button>
                </div>

                <!-- Shipping Info -->
                <div x-show="order.shipping_method || order.tracking_number" class="bg-white dark:bg-gray-800 rounded-lg shadow border border-gray-200 dark:border-gray-700 p-6">
                    <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-4 flex items-center">
                        <span class="h-5 w-5 mr-2 text-gray-400" x-html="$icon('archive', 'h-5 w-5')"></span>
                        Shipping
                    </h3>
                    <div class="space-y-3 text-sm">
                        <div x-show="order.shipping_method">
                            <p class="text-gray-500 dark:text-gray-400">Method</p>
                            <p class="font-medium text-gray-900 dark:text-white" x-text="order.shipping_method"></p>
                        </div>
                        <div x-show="order.shipping_carrier">
                            <p class="text-gray-500 dark:text-gray-400">Carrier</p>
                            <p class="font-medium text-gray-900 dark:text-white" x-text="order.shipping_carrier"></p>
                        </div>
                        <div x-show="order.tracking_number">
                            <p class="text-gray-500 dark:text-gray-400">Tracking Number</p>
                            <p class="font-medium text-gray-900 dark:text-white" x-text="order.tracking_number"></p>
                        </div>
                        <!-- Track Package Button -->
                        <a x-show="order.tracking_url"
                           :href="order.tracking_url"
                           target="_blank"
                           rel="noopener noreferrer"
                           class="mt-3 w-full inline-flex justify-center items-center px-4 py-2 border border-transparent rounded-md shadow-sm text-sm font-medium text-white transition-colors"
                           style="background-color: var(--color-primary)">
                            <span class="h-4 w-4 mr-2" x-html="$icon('location-marker', 'h-4 w-4')"></span>
                            Track Package
                        </a>
                    </div>
                </div>

                <!-- Need Help? -->
                <div class="bg-gray-50 dark:bg-gray-700/50 rounded-lg border border-gray-200 dark:border-gray-600 p-6">
                    <h3 class="text-lg font-semibold text-gray-900 dark:text-white mb-2">Need Help?</h3>
                    <p class="text-sm text-gray-600 dark:text-gray-300 mb-4">
                        If you have any questions about your order, please contact us.
                    </p>
                    <a href="{{ base_url }}shop/account/messages"
                       class="inline-flex items-center px-4 py-2 border border-transparent rounded-md shadow-sm text-sm font-medium text-white transition-colors"
                       style="background-color: var(--color-primary)">
                        <span class="h-4 w-4 mr-2" x-html="$icon('chat-bubble-left', 'h-4 w-4')"></span>
                        Contact Support
                    </a>
                </div>
            </div>
        </div>

        <!-- Back Button -->
        <div class="mt-8">
            <a href="{{ base_url }}shop/account/orders"
               class="inline-flex items-center text-sm font-medium text-gray-600 dark:text-gray-400 hover:text-primary">
                <span class="h-4 w-4 mr-2" x-html="$icon('chevron-left', 'h-4 w-4')"></span>
                Back to Orders
            </a>
        </div>
    </div>
</div>
{% endblock %}

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

        // State
        order: null,
        loading: true,
        error: '',
        orderId: {{ order_id }},
        downloadingInvoice: false,

        // Status mapping
        statuses: {
            pending: { label: 'Pending', class: 'bg-yellow-100 text-yellow-800 dark:bg-yellow-900 dark:text-yellow-200' },
            processing: { label: 'Processing', class: 'bg-blue-100 text-blue-800 dark:bg-blue-900 dark:text-blue-200' },
            partially_shipped: { label: 'Partially Shipped', class: 'bg-orange-100 text-orange-800 dark:bg-orange-900 dark:text-orange-200' },
            shipped: { label: 'Shipped', class: 'bg-indigo-100 text-indigo-800 dark:bg-indigo-900 dark:text-indigo-200' },
            delivered: { label: 'Delivered', class: 'bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200' },
            completed: { label: 'Completed', class: 'bg-green-100 text-green-800 dark:bg-green-900 dark:text-green-200' },
            cancelled: { label: 'Cancelled', class: 'bg-red-100 text-red-800 dark:bg-red-900 dark:text-red-200' },
            refunded: { label: 'Refunded', class: 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-200' }
        },

        // Timeline step order for progress tracking
        timelineSteps: ['pending', 'processing', 'shipped', 'delivered'],

        async init() {
            await this.loadOrder();
        },

        async loadOrder() {
            this.loading = true;
            this.error = '';

            try {
                const token = localStorage.getItem('customer_token');
                if (!token) {
                    window.location.href = '{{ base_url }}shop/account/login?next=' + encodeURIComponent(window.location.pathname);
                    return;
                }

                const response = await fetch(`/api/v1/shop/orders/${this.orderId}`, {
                    headers: {
                        'Authorization': `Bearer ${token}`
                    }
                });

                if (!response.ok) {
                    if (response.status === 401) {
                        localStorage.removeItem('customer_token');
                        localStorage.removeItem('customer_user');
                        window.location.href = '{{ base_url }}shop/account/login?next=' + encodeURIComponent(window.location.pathname);
                        return;
                    }
                    if (response.status === 404) {
                        throw new Error('Order not found');
                    }
                    throw new Error('Failed to load order details');
                }

                this.order = await response.json();

            } catch (err) {
                console.error('Error loading order:', err);
                this.error = err.message || 'Failed to load order';
            } finally {
                this.loading = false;
            }
        },

        getStatusLabel(status) {
            return this.statuses[status]?.label || status;
        },

        getStatusClass(status) {
            return this.statuses[status]?.class || 'bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-gray-200';
        },

        // formatPrice is inherited from shopLayoutData() via spread operator

        formatDateTime(dateStr) {
            if (!dateStr) return '-';
            return new Date(dateStr).toLocaleDateString('de-DE', {
                year: 'numeric',
                month: 'long',
                day: 'numeric',
                hour: '2-digit',
                minute: '2-digit'
            });
        },

        // ===== Timeline Functions =====

        /**
         * Get the current step index in the order flow
         */
        getCurrentStepIndex() {
            if (!this.order) return 0;
            const status = this.order.status;

            // Handle special statuses
            if (status === 'cancelled' || status === 'refunded') {
                return -1; // Special case
            }
            if (status === 'completed') {
                return 4; // All steps complete
            }
            if (status === 'partially_shipped') {
                return 2; // Between processing and shipped
            }

            return this.timelineSteps.indexOf(status) + 1;
        },

        /**
         * Check if a timeline step is complete
         */
        isStepComplete(step) {
            if (!this.order) return false;

            const currentIndex = this.getCurrentStepIndex();
            const stepIndex = this.timelineSteps.indexOf(step) + 1;

            return currentIndex >= stepIndex;
        },

        /**
         * Get CSS classes for a timeline step
         */
        getTimelineStepClass(step) {
            if (this.isStepComplete(step)) {
                // Completed step - green
                return 'bg-green-500 text-white';
            } else if (this.order && this.timelineSteps.indexOf(this.order.status) === this.timelineSteps.indexOf(step)) {
                // Current step - primary color with pulse
                return 'bg-blue-500 text-white animate-pulse';
            } else {
                // Future step - gray
                return 'bg-gray-200 dark:bg-gray-600 text-gray-400 dark:text-gray-500';
            }
        },

        // ===== Invoice Functions =====

        /**
         * Check if invoice can be downloaded (order must be at least processing)
         */
        canDownloadInvoice() {
            if (!this.order) return false;
            const invoiceStatuses = ['processing', 'partially_shipped', 'shipped', 'delivered', 'completed'];
            return invoiceStatuses.includes(this.order.status);
        },

        /**
         * Download invoice PDF for this order
         */
        async downloadInvoice() {
            if (this.downloadingInvoice) return;

            this.downloadingInvoice = true;
            try {
                const token = localStorage.getItem('customer_token');
                if (!token) {
                    window.location.href = '{{ base_url }}shop/account/login?next=' + encodeURIComponent(window.location.pathname);
                    return;
                }

                const response = await fetch(`/api/v1/shop/orders/${this.orderId}/invoice`, {
                    method: 'GET',
                    headers: {
                        'Authorization': `Bearer ${token}`
                    }
                });

                if (!response.ok) {
                    if (response.status === 401) {
                        localStorage.removeItem('customer_token');
                        localStorage.removeItem('customer_user');
                        window.location.href = '{{ base_url }}shop/account/login?next=' + encodeURIComponent(window.location.pathname);
                        return;
                    }
                    if (response.status === 404) {
                        throw new Error('Invoice not yet available. Please try again later.');
                    }
                    throw new Error('Failed to download invoice');
                }

                // Get filename from Content-Disposition header if available
                const contentDisposition = response.headers.get('Content-Disposition');
                let filename = `invoice-${this.order.order_number}.pdf`;
                if (contentDisposition) {
                    const match = contentDisposition.match(/filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/);
                    if (match && match[1]) {
                        filename = match[1].replace(/['"]/g, '');
                    }
                }

                // Download the blob
                const blob = await response.blob();
                const url = window.URL.createObjectURL(blob);
                const a = document.createElement('a');
                a.href = url;
                a.download = filename;
                document.body.appendChild(a);
                a.click();
                document.body.removeChild(a);
                window.URL.revokeObjectURL(url);

            } catch (err) {
                console.error('Error downloading invoice:', err);
                alert(err.message || 'Failed to download invoice');
            } finally {
                this.downloadingInvoice = false;
            }
        }
    }
}
</script>
{% endblock %}