rbox - Molodetz Institute

 class BillingDashboard extends HTMLElement {
     constructor() {
         super();
         this.currentUsage = null;
         this.subscription = null;
         this.pricing = null;
         this.invoices = [];
         this.boundHandleClick = this.handleClick.bind(this);
     }
     async connectedCallback() {
         this.addEventListener('click', this.boundHandleClick);
         await this.loadData();
         this.render();
         this.attachEventListeners();
     }
     disconnectedCallback() {
         this.removeEventListener('click', this.boundHandleClick);
     }
     async loadData() {
         try {
             const [usage, subscription, pricing, invoices] = await Promise.all([
                 this.fetchCurrentUsage(),
                 this.fetchSubscription(),
                 this.fetchPricing(),
                 this.fetchInvoices()
             ]);
             this.currentUsage = usage;
             this.subscription = subscription;
             this.pricing = pricing;
             this.invoices = invoices;
         } catch (error) {
             console.error('Failed to load billing data:', error);
         }
     }
     async fetchCurrentUsage() {
         const response = await fetch('/api/billing/usage/current', {
             headers: {'Authorization': `Bearer ${localStorage.getItem('token')}`}
         });
         if (!response.ok) {
             throw new Error(`HTTP ${response.status}: ${response.statusText}`);
         }
         return await response.json();
     }
     async fetchSubscription() {
         const response = await fetch('/api/billing/subscription', {
             headers: {'Authorization': `Bearer ${localStorage.getItem('token')}`}
         });
         if (!response.ok) {
             throw new Error(`HTTP ${response.status}: ${response.statusText}`);
         }
         return await response.json();
     }
     async fetchPricing() {
         const response = await fetch('/api/billing/pricing');
         if (!response.ok) {
             throw new Error(`HTTP ${response.status}: ${response.statusText}`);
         }
         return await response.json();
     }
     async fetchInvoices() {
         const response = await fetch('/api/billing/invoices?limit=10', {
             headers: {'Authorization': `Bearer ${localStorage.getItem('token')}`}
         });
         if (!response.ok) {
             throw new Error(`HTTP ${response.status}: ${response.statusText}`);
         }
         return await response.json();
     }
     formatCurrency(amount) {
         return new Intl.NumberFormat('en-US', {
             style: 'currency',
             currency: 'USD',
             minimumFractionDigits: 2,
             maximumFractionDigits: 4
         }).format(amount);
     }
     formatGB(gb) {
         if (gb >= 1024) {
             return `${(gb / 1024).toFixed(2)} TB`;
         }
         return `${gb.toFixed(2)} GB`;
     }
     calculateEstimatedCost() {
         if (!this.currentUsage || !this.pricing) return 0;
         const storagePrice = parseFloat(this.pricing.storage_per_gb_month?.value || 0);
         const bandwidthPrice = parseFloat(this.pricing.bandwidth_egress_per_gb?.value || 0);
         const freeStorage = parseFloat(this.pricing.free_tier_storage_gb?.value || 0);
         const freeBandwidth = parseFloat(this.pricing.free_tier_bandwidth_gb?.value || 0);
         const storageGB = this.currentUsage.storage_gb;
         const bandwidthGB = this.currentUsage.bandwidth_down_gb_today * 30;
         const billableStorage = Math.max(0, Math.ceil(storageGB - freeStorage));
         const billableBandwidth = Math.max(0, Math.ceil(bandwidthGB - freeBandwidth));
         return (billableStorage * storagePrice) + (billableBandwidth * bandwidthPrice);
     }
     render() {
         const estimatedCost = this.calculateEstimatedCost();
         const storageUsed = this.currentUsage?.storage_gb || 0;
         const freeStorage = parseFloat(this.pricing?.free_tier_storage_gb?.value || 15);
         const storagePercentage = Math.min(100, (storageUsed / freeStorage) * 100);
         this.innerHTML = `
             <div class="billing-dashboard">
                 <div class="billing-header">
                     <h2>Billing & Usage</h2>
                     <div class="subscription-badge ${this.subscription?.status === 'active' ? 'active' : 'inactive'}">
                         ${this.subscription?.billing_type === 'pay_as_you_go' ? 'Pay As You Go' : this.subscription?.plan_name || 'Free'}
                     </div>
                 </div>
                 <div class="billing-cards">
                     <div class="billing-card usage-card">
                         <h3>Current Usage</h3>
                         <div class="usage-details">
                             <div class="usage-item">
                                 <span class="usage-label">Storage</span>
                                 <span class="usage-value">${this.formatGB(storageUsed)}</span>
                             </div>
                             <div class="usage-progress">
                                 <div class="usage-progress-bar" style="width: ${storagePercentage}%"></div>
                             </div>
                             <div class="usage-info">${this.formatGB(freeStorage)} included free</div>
                             <div class="usage-item">
                                 <span class="usage-label">Bandwidth (Today)</span>
                                 <span class="usage-value">${this.formatGB(this.currentUsage?.bandwidth_down_gb_today || 0)}</span>
                             </div>
                         </div>
                     </div>
                     <div class="billing-card cost-card">
                         <h3>Estimated Monthly Cost</h3>
                         <div class="estimated-cost">${this.formatCurrency(estimatedCost)}</div>
                         <div class="cost-breakdown">
                             <div class="cost-item">
                                 <span>Storage</span>
                                 <span>${this.formatCurrency(Math.max(0, Math.ceil(storageUsed - freeStorage)) * parseFloat(this.pricing?.storage_per_gb_month?.value || 0))}</span>
                             </div>
                             <div class="cost-item">
                                 <span>Bandwidth</span>
                                 <span>${this.formatCurrency(0)}</span>
                             </div>
                         </div>
                     </div>
                     <div class="billing-card pricing-card">
                         <h3>Current Pricing</h3>
                         <div class="pricing-details">
                             <div class="pricing-item">
                                 <span>Storage</span>
                                 <span>${this.formatCurrency(parseFloat(this.pricing?.storage_per_gb_month?.value || 0))}/GB/month</span>
                             </div>
                             <div class="pricing-item">
                                 <span>Bandwidth</span>
                                 <span>${this.formatCurrency(parseFloat(this.pricing?.bandwidth_egress_per_gb?.value || 0))}/GB</span>
                             </div>
                             <div class="pricing-item">
                                 <span>Free Tier</span>
                                 <span>${this.formatGB(freeStorage)} storage, ${this.formatGB(parseFloat(this.pricing?.free_tier_bandwidth_gb?.value || 15))} bandwidth/month</span>
                             </div>
                         </div>
                     </div>
                 </div>
                 <div class="invoices-section">
                     <h3>Recent Invoices</h3>
                     <div class="invoices-table">
                         ${this.renderInvoicesTable()}
                     </div>
                 </div>
                 <div class="payment-methods-section">
                     <h3>Payment Methods</h3>
                     <button class="btn-primary" id="addPaymentMethod">Add Payment Method</button>
                 </div>
             </div>
         `;
     }
     renderInvoicesTable() {
         if (!this.invoices || this.invoices.length === 0) {
             return '<p class="no-invoices">No invoices yet</p>';
         }
         return `
             <table>
                 <thead>
                     <tr>
                         <th>Invoice #</th>
                         <th>Period</th>
                         <th>Amount</th>
                         <th>Status</th>
                         <th>Due Date</th>
                         <th>Actions</th>
                     </tr>
                 </thead>
                 <tbody>
                     ${this.invoices.map(invoice => `
                         <tr>
                             <td>${invoice.invoice_number}</td>
                             <td>${this.formatDate(invoice.period_start)} - ${this.formatDate(invoice.period_end)}</td>
                             <td>${this.formatCurrency(invoice.total)}</td>
                             <td><span class="invoice-status ${invoice.status}">${invoice.status}</span></td>
                             <td>${invoice.due_date ? this.formatDate(invoice.due_date) : '-'}</td>
                             <td>
                                 <button class="btn-link" data-invoice-id="${invoice.id}">View</button>
                             </td>
                         </tr>
                     `).join('')}
                 </tbody>
             </table>
         `;
     }
     formatDate(dateString) {
         return new Date(dateString).toLocaleDateString('en-US', {
             year: 'numeric',
             month: 'short',
             day: 'numeric'
         });
     }
     handleClick(e) {
         const target = e.target;
         if (target.id === 'addPaymentMethod') {
             this.showPaymentMethodModal();
             return;
         }
         if (target.dataset.invoiceId) {
             const invoiceId = target.dataset.invoiceId;
             this.showInvoiceDetail(invoiceId);
         }
     }
     attachEventListeners() {
     }
     async showPaymentMethodModal() {
         alert('Payment method modal will be implemented with Stripe Elements');
     }
     async showInvoiceDetail(invoiceId) {
         const response = await fetch(`/api/billing/invoices/${invoiceId}`, {
             headers: {'Authorization': `Bearer ${localStorage.getItem('token')}`}
         });
         const invoice = await response.json();
         const modal = document.createElement('div');
         modal.className = 'modal';
         modal.innerHTML = `
             <div class="modal-content">
                 <h2>Invoice ${invoice.invoice_number}</h2>
                 <div class="invoice-details">
                     <p><strong>Period:</strong> ${this.formatDate(invoice.period_start)} - ${this.formatDate(invoice.period_end)}</p>
                     <p><strong>Status:</strong> ${invoice.status}</p>
                     <h3>Line Items</h3>
                     <table>
                         <thead>
                             <tr>
                                 <th>Description</th>
                                 <th>Quantity</th>
                                 <th>Unit Price</th>
                                 <th>Amount</th>
                             </tr>
                         </thead>
                         <tbody>
                             ${invoice.line_items.map(item => `
                                 <tr>
                                     <td>${item.description}</td>
                                     <td>${item.quantity.toFixed(2)}</td>
                                     <td>${this.formatCurrency(item.unit_price)}</td>
                                     <td>${this.formatCurrency(item.amount)}</td>
                                 </tr>
                             `).join('')}
                         </tbody>
                     </table>
                     <div class="invoice-total">
                         <div><strong>Subtotal:</strong> ${this.formatCurrency(invoice.subtotal)}</div>
                         <div><strong>Tax:</strong> ${this.formatCurrency(invoice.tax)}</div>
                         <div><strong>Total:</strong> ${this.formatCurrency(invoice.total)}</div>
                     </div>
                 </div>
                 <button class="btn-secondary" onclick="this.closest('.modal').remove()">Close</button>
             </div>
         `;
         document.body.appendChild(modal);
     }
 }
 customElements.define('billing-dashboard', BillingDashboard);
 export default BillingDashboard;