diff --git a/client/1120_client.html b/client/1120_client.html
index 5750862..b24d27a 100644
--- a/client/1120_client.html
+++ b/client/1120_client.html
@@ -8,6 +8,7 @@
<!-- Load our CSS files -->
<link rel="stylesheet" href="./styles.css">
<link rel="stylesheet" href="./styles/event-list.css">
+ <link rel="stylesheet" href="./styles/client-events-table.css">
</head>
<body>
<!-- Navigation bar container - content will be injected by navbar.ts -->
@@ -108,6 +109,15 @@ User-Agent: Browser/1.0
</div>
</div>
</div>
+
+ <!-- Client Events Table -->
+ <div class="client-events-section">
+ <h2>Outgoing Requests History</h2>
+ <div class="info-box">
+ <p>Below is a history of your outgoing KIND 21120 requests and their responses (KIND 21121). Click on a request to see details.</p>
+ </div>
+ <div id="clientEventsTableContainer"></div>
+ </div>
<!-- Include the webpack bundled JavaScript file with forced loading -->
<script src="./client.bundle.js" onload="console.log('Client bundle loaded successfully')"></script>
</body>
diff --git a/client/client-events-implementation-plan.md b/client/client-events-implementation-plan.md
new file mode 100644
index 0000000..9f28b23
--- /dev/null
+++ b/client/client-events-implementation-plan.md
@@ -0,0 +1,76 @@
+# Client Events Implementation Plan
+
+## Implementation Status
+
+The implementation of the client-side event tracking system has been completed:
+
+### 1. Core Services
+
+- ✅ **ClientEventStore** - Tracks outgoing KIND 21120 events and incoming KIND 21121 responses
+ - Stores events with metadata (status, timestamps, etc.)
+ - Associates responses with their original requests via e tags
+ - Provides methods for tracking, querying, and updating events
+
+- ✅ **client-event-handler.ts** - Coordinates event tracking and relay subscriptions
+ - Initializes the ClientEventStore
+ - Sets up subscriptions to KIND 21121 responses
+ - Provides methods for tracking outgoing events
+ - Handles incoming response events
+
+### 2. UI Components
+
+- ✅ **ClientEventsTable** - Displays tracked events in a table format
+ - Shows timestamps, target servers, and event status
+ - Updates in real-time when events are added or updated
+ - Provides detailed view through modal dialog
+ - Displays both request and response content when available
+
+### 3. Styling
+
+- ✅ **client-events-table.css** - Provides styling for the events table and modal
+ - Matches the look and feel of the existing application
+ - Includes styles for the modal tabs and content views
+ - Handles different event statuses with appropriate highlighting
+
+### 4. Integration
+
+- ✅ **1120_client.html** - Updated to include the client events table
+ - Added container for the events table
+ - Included link to the CSS file
+
+- ✅ **client.ts** - Updated to initialize and use the event tracking system
+ - Initializes client-event-handler with the relay service
+ - Tracks outgoing events when published
+ - Hooks into the existing event publishing flow
+
+## Features
+
+The implementation provides the following features:
+
+1. **Event Tracking**: All outgoing 21120 events are automatically tracked
+2. **Response Association**: Incoming 21121 responses are associated with their original requests
+3. **Status Updates**: Event status is updated as they progress through their lifecycle
+4. **Visual Interface**: A table displays all events with their current status
+5. **Detailed View**: A modal dialog shows detailed information about events and their responses
+6. **Real-time Updates**: The UI updates automatically when events change or responses arrive
+
+## Usage
+
+The client events table is automatically initialized when the client page loads. It will:
+
+1. Show all outgoing HTTP requests (KIND 21120 events)
+2. Update when responses (KIND 21121 events) are received
+3. Allow clicking on any event to see full details
+4. Display HTTP formatted content for easy reading
+
+No additional user steps are required to use this functionality - it works automatically when sending HTTP requests through the client page.
+
+## Next Steps
+
+Potential future enhancements could include:
+
+1. Add filters to the event table (by status, target server, etc.)
+2. Implement persistence via local storage to maintain history between sessions
+3. Add export/import functionality for offline analysis
+4. Add ability to retry failed requests
+5. Improve visualization with charts or graphs of request/response patterns
\ No newline at end of file
diff --git a/client/src/client-event-handler.ts b/client/src/client-event-handler.ts
new file mode 100644
index 0000000..237d562
--- /dev/null
+++ b/client/src/client-event-handler.ts
@@ -0,0 +1,217 @@
+/**
+ * client-event-handler.ts
+ *
+ * Manages client-originated 21120 events and their 21121 responses.
+ * This module is responsible for:
+ * 1. Initializing the ClientEventStore to track outgoing events
+ * 2. Setting up the ClientEventsTable for UI display
+ * 3. Intercepting outgoing 21120 events for tracking
+ * 4. Listening for incoming 21121 responses and associating them with requests
+ */
+
+import { ClientEventStore, ClientEventStatus } from './services/ClientEventStore';
+import { ClientEventsTable } from './components/ClientEventsTable';
+import type { NostrEvent } from './relay';
+import { NostrRelayService } from './services/NostrRelayService';
+
+// Create a singleton instance of the client event store
+const clientEventStore = new ClientEventStore();
+
+// The table UI component (initialized in setup)
+let clientEventsTable: ClientEventsTable | null = null;
+
+// Reference to the relay service for subscriptions
+let relayService: NostrRelayService | null = null;
+
+/**
+ * Initialize the client event handler
+ * @param relayServiceInstance The relay service to use for subscriptions
+ */
+export function initClientEventHandler(relayServiceInstance: NostrRelayService): void {
+ // Store relay service reference
+ relayService = relayServiceInstance;
+
+ // Initialize the client events table
+ clientEventsTable = new ClientEventsTable(clientEventStore, 'clientEventsTableContainer');
+ clientEventsTable.initialize();
+
+ // Set up subscription to KIND 21121 responses
+ setupResponseSubscription();
+
+ console.log('Client event handler initialized');
+}
+
+/**
+ * Set up subscription to KIND 21121 responses from relays
+ * This allows us to associate responses with their original requests
+ */
+function setupResponseSubscription(): void {
+ if (!relayService) {
+ console.error('Cannot set up response subscription: relayService is null');
+ return;
+ }
+
+ // Get the active relay URL
+ const activeRelayUrl = relayService.getActiveRelayUrl();
+ if (!activeRelayUrl) {
+ console.error('No active relay URL for subscription');
+ return;
+ }
+
+ // Create filter for KIND 21121 responses
+ const filter: { kinds: number[] } = { kinds: [21121] };
+
+ // Get the WebSocket manager to set up the subscription
+ const wsManager = relayService.getWebSocketManager();
+
+ // Set up the websocket subscription
+ wsManager.connect(activeRelayUrl, {
+ timeout: 5000,
+ onOpen: (ws) => {
+ // Send a REQ message to subscribe
+ const reqId = `client-events-21121-sub-${Date.now()}`;
+ const reqMsg = JSON.stringify(["REQ", reqId, filter]);
+ ws.send(reqMsg);
+ console.log(`Subscribed to KIND 21121 responses on ${activeRelayUrl}`);
+ },
+ onMessage: (data) => {
+ // Parse the incoming message
+ try {
+ // Type assertion for the received data
+ const nostrData = data as unknown[];
+
+ // Handle EVENT messages
+ if (Array.isArray(nostrData) && nostrData[0] === "EVENT" && nostrData.length >= 3) {
+ const receivedEvent = nostrData[2] as NostrEvent;
+
+ // Process only KIND 21121 events
+ if (receivedEvent && receivedEvent.kind === 21121) {
+ handleIncomingResponse(receivedEvent);
+ }
+ }
+ } catch (error) {
+ console.error('Error processing 21121 message:', error);
+ }
+ },
+ onError: (error) => {
+ console.error('WebSocket error in 21121 subscription:', error);
+ },
+ onClose: () => {
+ console.log('21121 subscription connection closed');
+ }
+ }).catch(error => {
+ console.error('Failed to connect for 21121 subscription:', error);
+ });
+}
+
+/**
+ * Handle an outgoing KIND 21120 event
+ * This should be called whenever a 21120 event is published
+ *
+ * @param event The KIND 21120 event being sent
+ * @returns The event ID for reference
+ */
+export function trackOutgoingEvent(event: NostrEvent): string | null {
+ if (!event || !event.id) {
+ console.error('Cannot track invalid event');
+ return null;
+ }
+
+ if (event.kind !== 21120) {
+ console.warn(`Expected KIND 21120 event, got ${event.kind}`);
+ }
+
+ // Add to the store
+ return clientEventStore.addOutgoingEvent(event);
+}
+
+/**
+ * Handle a pending 21120 event before it's published
+ * @param event The event being prepared
+ */
+export function markEventAsPending(event: NostrEvent): void {
+ if (!event || !event.id) {
+ console.error('Cannot mark invalid event as pending');
+ return;
+ }
+
+ const eventId = clientEventStore.addOutgoingEvent(event);
+ if (eventId) {
+ clientEventStore.updateEventStatus(eventId, ClientEventStatus.Pending);
+ }
+}
+
+/**
+ * Mark an event as failed
+ * @param eventId The ID of the event that failed
+ */
+export function markEventAsFailed(eventId: string): void {
+ clientEventStore.updateEventStatus(eventId, ClientEventStatus.Failed);
+}
+
+/**
+ * Handle an incoming KIND 21121 response
+ * @param event The KIND 21121 response event
+ * @returns true if the response was associated with a request
+ */
+export function handleIncomingResponse(event: NostrEvent): boolean {
+ if (!event || !event.id) {
+ console.error('Cannot handle invalid response event');
+ return false;
+ }
+
+ if (event.kind !== 21121) {
+ console.warn(`Expected KIND 21121 event, got ${event.kind}`);
+ }
+
+ // Try to find the 'e' tag which should reference the original request
+ const eTag = event.tags.find(tag => tag[0] === 'e');
+ if (!eTag || eTag.length < 2) {
+ console.warn('Response event missing valid e tag with request ID');
+ return false;
+ }
+
+ const requestId = eTag[1];
+
+ // Check if we have this request in our store
+ const storedEvent = clientEventStore.getEvent(requestId);
+ if (!storedEvent) {
+ // This response doesn't match any of our tracked requests
+ return false;
+ }
+
+ // Add the response to the store, linked to the original request
+ return clientEventStore.addResponseEvent(event);
+}
+
+/**
+ * Get the client event store instance
+ * Useful for direct access to the store from other modules
+ * @returns The ClientEventStore instance
+ */
+export function getClientEventStore(): ClientEventStore {
+ return clientEventStore;
+}
+
+/**
+ * Dispose of resources when module is unloaded
+ * Call this when the application is shutting down or navigating away
+ */
+export function disposeClientEventHandler(): void {
+ // Clean up the UI component
+ if (clientEventsTable) {
+ clientEventsTable.dispose();
+ clientEventsTable = null;
+ }
+
+ // Close WebSocket connections if needed
+ if (relayService) {
+ try {
+ const wsManager = relayService.getWebSocketManager();
+ wsManager.close();
+ } catch (e) {
+ console.error('Error closing WebSocket connection:', e);
+ }
+ relayService = null;
+ }
+}
\ No newline at end of file
diff --git a/client/src/client.ts b/client/src/client.ts
index 8636e7b..bce2aa3 100644
--- a/client/src/client.ts
+++ b/client/src/client.ts
@@ -40,6 +40,12 @@ import * as nostrTools from 'nostr-tools';
import type { NostrEvent } from './converter';
// Import functions from internal modules
import { displayConvertedEvent } from './converter';
+// Import client events tracking system
+import {
+ initClientEventHandler,
+ trackOutgoingEvent,
+ handleIncomingResponse
+} from './client-event-handler';
import { publishToRelay, convertNpubToHex, verifyEvent } from './relay';
// Import profile functions (not using direct imports since we'll load modules based on page)
// This ensures all page modules are included in the bundle
@@ -135,6 +141,10 @@ const nostr31120Service = new Nostr31120Service(
nostrService.getCacheService()
);
+// Initialize client event tracking
+// This needs to happen after nostrService is initialized
+initClientEventHandler(nostrService.getRelayService());
+
/**
* Handle showing the server selection modal
*/
@@ -774,6 +784,10 @@ async function handlePublishEvent(): Promise<void> {
showLoading(publishResultDiv, 'Publishing to relay...');
try {
+ // Track the event before publishing
+ trackOutgoingEvent(event);
+
+ // Publish the event
const result = await publishToRelay(event, relayUrl);
showSuccess(publishResultDiv, result);
} catch (publishError) {
@@ -848,6 +862,10 @@ async function handlePublishEvent(): Promise<void> {
publishResultDiv.innerHTML += '<br><span>Attempting to publish...</span>';
try {
+ // Track the event in our client store
+ trackOutgoingEvent(event);
+
+ // Publish the event
const result = await publishToRelay(event, relayUrl);
showSuccess(publishResultDiv, result);
} catch (publishError) {
diff --git a/client/src/components/ClientEventsTable.ts b/client/src/components/ClientEventsTable.ts
new file mode 100644
index 0000000..53d25d2
--- /dev/null
+++ b/client/src/components/ClientEventsTable.ts
@@ -0,0 +1,420 @@
+/**
+ * ClientEventsTable.ts
+ *
+ * A component for displaying client-originated KIND 21120 events and their KIND 21121 responses
+ * in a table format with a detailed view modal.
+ */
+
+import { EventChangeType } from '../services/EventManager';
+import type { ClientEventStore, ClientStoredEvent } from '../services/ClientEventStore';
+import { ClientEventStatus } from '../services/ClientEventStore';
+import { HttpFormatter } from '../services/HttpFormatter';
+import { nip19 } from 'nostr-tools';
+
+export class ClientEventsTable {
+ private container: HTMLElement | null = null;
+ private eventStore: ClientEventStore;
+ private tableBody: HTMLElement | null = null;
+ private unregisterListener: (() => void) | null = null;
+ private modal: HTMLElement | null = null;
+ private modalContent: HTMLElement | null = null;
+ private currentEventId: string | null = null;
+
+ constructor(eventStore: ClientEventStore, containerId: string) {
+ this.eventStore = eventStore;
+ this.container = document.getElementById(containerId);
+ }
+
+ public initialize(): void {
+ if (!this.container) {
+ console.error('Client events table container not found');
+ return;
+ }
+
+ // Create the table structure
+ this.createTableStructure();
+
+ // Create the modal dialog
+ this.createModalDialog();
+
+ // Register for event changes
+ this.unregisterListener = this.eventStore.registerListener((eventId, changeType) => {
+ switch (changeType) {
+ case EventChangeType.Added:
+ this.renderEventRow(eventId);
+ break;
+ case EventChangeType.Updated:
+ this.updateEventRow(eventId);
+ this.refreshModalIfNeeded(eventId);
+ break;
+ case EventChangeType.Removed:
+ this.removeEventRow(eventId);
+ break;
+ }
+ });
+
+ // Render existing events
+ this.renderExistingEvents();
+ }
+
+ private createTableStructure(): void {
+ if (!this.container) { return; }
+
+ const tableHtml = `
+ <table class="client-events-table">
+ <thead>
+ <tr>
+ <th>Time</th>
+ <th>Target Server</th>
+ <th>Event ID</th>
+ <th>Status</th>
+ </tr>
+ </thead>
+ <tbody id="clientEventsTableBody">
+ <tr class="table-empty-state">
+ <td colspan="4">No outgoing HTTP requests yet. Use the form above to send requests.</td>
+ </tr>
+ </tbody>
+ </table>
+ `;
+
+ this.container.innerHTML = tableHtml;
+ this.tableBody = document.getElementById('clientEventsTableBody');
+ }
+
+ private renderExistingEvents(): void {
+ if (!this.tableBody) { return; }
+
+ // Clear existing content
+ this.tableBody.innerHTML = '';
+
+ // Get all events from the store
+ const events = this.eventStore.getAllEvents();
+
+ // If no events, show the empty state
+ if (events.length === 0) {
+ this.tableBody.innerHTML = `
+ <tr class="table-empty-state">
+ <td colspan="4">No outgoing HTTP requests yet. Use the form above to send requests.</td>
+ </tr>
+ `;
+ return;
+ }
+
+ // Sort events by sent time (newest first)
+ events.sort((a, b) => b.sentAt - a.sentAt);
+
+ // Render each event
+ events.forEach(event => {
+ this.renderEventRow(event.id);
+ });
+ }
+
+ private renderEventRow(eventId: string): HTMLElement | null {
+ if (!this.tableBody) { return null; }
+
+ // Get the event from store
+ const storedEvent = this.eventStore.getEvent(eventId);
+ if (!storedEvent) { return null; }
+
+ // Check if row already exists
+ const existingRow = document.getElementById(`client-event-row-${eventId}`);
+ if (existingRow) {
+ this.updateEventRow(eventId);
+ return existingRow as HTMLElement;
+ }
+
+ // Create a new row
+ const row = document.createElement('tr');
+ row.id = `client-event-row-${eventId}`;
+ row.dataset.eventId = eventId;
+ row.className = 'event-row';
+
+ // Format timestamp
+ const timestamp = new Date(storedEvent.sentAt).toLocaleTimeString();
+
+ // Find p tag for target server
+ const targetServerTag = storedEvent.event.tags.find(tag => tag[0] === 'p');
+ let targetServer = 'Unknown';
+
+ if (targetServerTag && targetServerTag.length > 1) {
+ try {
+ const npub = nip19.npubEncode(targetServerTag[1]);
+ targetServer = `${npub.substring(0, 8)}...${npub.substring(npub.length - 4)}`;
+ } catch (e) {
+ targetServer = targetServerTag[1].substring(0, 8) + '...';
+ }
+ }
+
+ // Format event ID
+ const shortEventId = eventId.substring(0, 8) + '...';
+
+ // Determine status indicator
+ let statusHtml = this.getStatusHtml(storedEvent.status);
+
+ // Set row HTML
+ row.innerHTML = `
+ <td class="time-cell">${timestamp}</td>
+ <td class="server-cell" title="${targetServerTag ? targetServerTag[1] : 'Unknown'}">${targetServer}</td>
+ <td class="event-id-cell" title="${eventId}">${shortEventId}</td>
+ <td class="status-cell">${statusHtml}</td>
+ `;
+
+ // Add click handler
+ row.addEventListener('click', () => {
+ this.showModal(eventId);
+ });
+
+ // Remove empty state if present
+ const emptyStateRow = this.tableBody.querySelector('.table-empty-state');
+ if (emptyStateRow) {
+ emptyStateRow.remove();
+ }
+
+ // Add to table at the top
+ if (this.tableBody.firstChild) {
+ this.tableBody.insertBefore(row, this.tableBody.firstChild);
+ } else {
+ this.tableBody.appendChild(row);
+ }
+
+ return row;
+ }
+
+ private getStatusHtml(status: ClientEventStatus): string {
+ switch (status) {
+ case ClientEventStatus.Sent:
+ return '<span class="status-sent">Sent</span>';
+ case ClientEventStatus.Responded:
+ return '<span class="status-responded">Responded ✓</span>';
+ case ClientEventStatus.Pending:
+ return '<span class="status-pending">Pending...</span>';
+ case ClientEventStatus.Failed:
+ return '<span class="status-failed">Failed ✗</span>';
+ default:
+ return '<span>Unknown</span>';
+ }
+ }
+
+ private updateEventRow(eventId: string): void {
+ const row = document.getElementById(`client-event-row-${eventId}`);
+ if (!row) {
+ // If row doesn't exist, create it
+ this.renderEventRow(eventId);
+ return;
+ }
+
+ const storedEvent = this.eventStore.getEvent(eventId);
+ if (!storedEvent) { return; }
+
+ // Update the status cell
+ const statusCell = row.querySelector('.status-cell');
+ if (statusCell) {
+ statusCell.innerHTML = this.getStatusHtml(storedEvent.status);
+ }
+
+ // Highlight row briefly to indicate update
+ row.classList.add('updated');
+ setTimeout(() => {
+ row.classList.remove('updated');
+ }, 2000);
+ }
+
+ private removeEventRow(eventId: string): void {
+ const row = document.getElementById(`client-event-row-${eventId}`);
+
+ if (row) { row.remove(); }
+
+ // Check if we need to show the empty state
+ if (this.tableBody && !this.tableBody.querySelector('.event-row')) {
+ this.tableBody.innerHTML = `
+ <tr class="table-empty-state">
+ <td colspan="4">No outgoing HTTP requests yet. Use the form above to send requests.</td>
+ </tr>
+ `;
+ }
+ }
+ private refreshModalIfNeeded(eventId: string): void {
+ if (this.currentEventId === eventId) {
+ this.loadEventData(eventId);
+ }
+ }
+
+ private loadEventData(eventId: string): void {
+ const storedEvent = this.eventStore.getEvent(eventId);
+ if (!storedEvent || !this.modal) return;
+
+ // Get tab content containers
+ const jsonTab = document.getElementById('tab-21120-json-content');
+ const httpRequestTab = document.getElementById('tab-21120-http-content');
+ const httpResponseTab = document.getElementById('tab-21121-http-content');
+ const jsonResponseTab = document.getElementById('tab-21121-json-content');
+
+ if (!jsonTab || !httpRequestTab || !httpResponseTab || !jsonResponseTab) return;
+
+ // Populate 21120 JSON tab
+ jsonTab.innerHTML = `<pre>${JSON.stringify(storedEvent.event, null, 2)}</pre>`;
+
+ // Populate 21120 HTTP request tab
+ try {
+ httpRequestTab.innerHTML = HttpFormatter.formatHttpContent(storedEvent.event.content, true, true);
+ } catch (e) {
+ httpRequestTab.innerHTML = `<pre>${storedEvent.event.content}</pre>`;
+ }
+
+ // Check if we have a response
+ const responseEvent = storedEvent.responseEvent;
+ if (responseEvent) {
+ // Populate 21121 JSON response tab
+ jsonResponseTab.innerHTML = `<pre>${JSON.stringify(responseEvent, null, 2)}</pre>`;
+
+ // Populate 21121 HTTP response tab
+ try {
+ httpResponseTab.innerHTML = HttpFormatter.formatHttpContent(responseEvent.content, false, true);
+ } catch (e) {
+ httpResponseTab.innerHTML = `<pre>${responseEvent.content}</pre>`;
+ }
+ } else {
+ // No response yet
+ jsonResponseTab.innerHTML = '<div class="empty-response">No response received yet</div>';
+ httpResponseTab.innerHTML = '<div class="empty-response">No response received yet</div>';
+ }
+ }
+
+ public dispose(): void {
+ // Remove event listener
+ if (this.unregisterListener) {
+ this.unregisterListener();
+ this.unregisterListener = null;
+ }
+
+ // Remove modal from DOM
+ if (this.modal && this.modal.parentNode) {
+ this.modal.parentNode.removeChild(this.modal);
+ }
+
+ // Clear references
+ this.container = null;
+ this.tableBody = null;
+ this.modal = null;
+ this.modalContent = null;
+ this.currentEventId = null;
+ }
+
+ private createModalDialog(): void {
+ // Create modal element
+ this.modal = document.createElement('div');
+ this.modal.className = 'client-events-modal';
+ this.modal.style.display = 'none';
+
+ // Create close button
+ const closeButton = document.createElement('button');
+ closeButton.className = 'modal-close-button';
+ closeButton.innerHTML = '×';
+ closeButton.addEventListener('click', () => this.hideModal());
+
+ // Create modal content
+ this.modalContent = document.createElement('div');
+ this.modalContent.className = 'modal-content';
+
+ // Create tabs
+ const tabsContainer = document.createElement('div');
+ tabsContainer.className = 'modal-tabs';
+
+ const tabs = [
+ { id: 'tab-21120-json', label: '21120 Raw JSON' },
+ { id: 'tab-21120-http', label: '21120 HTTP Request' },
+ { id: 'tab-21121-http', label: '21121 HTTP Response' },
+ { id: 'tab-21121-json', label: '21121 Raw JSON' }
+ ];
+
+ // Create tab elements
+ tabs.forEach(tab => {
+ const tabButton = document.createElement('button');
+ tabButton.className = 'modal-tab';
+ tabButton.id = tab.id;
+ tabButton.textContent = tab.label;
+ tabButton.dataset.tabId = tab.id + '-content';
+ tabButton.addEventListener('click', (e) => this.switchTab(e));
+ tabsContainer.appendChild(tabButton);
+ });
+
+ // Create tab content containers
+ const tabContentsContainer = document.createElement('div');
+ tabContentsContainer.className = 'modal-tab-contents';
+
+ tabs.forEach(tab => {
+ const tabContent = document.createElement('div');
+ tabContent.className = 'modal-tab-content';
+ tabContent.id = tab.id + '-content';
+ tabContentsContainer.appendChild(tabContent);
+ });
+
+ // Assemble the modal
+ this.modalContent.appendChild(tabsContainer);
+ this.modalContent.appendChild(tabContentsContainer);
+ this.modal.appendChild(closeButton);
+ this.modal.appendChild(this.modalContent);
+
+ // Add modal to document body
+ document.body.appendChild(this.modal);
+
+ // Add event listener to close modal when clicking outside
+ window.addEventListener('click', (event) => {
+ if (event.target === this.modal) {
+ this.hideModal();
+ }
+ });
+ }
+
+ private showModal(eventId: string): void {
+ if (!this.modal) return;
+
+ this.currentEventId = eventId;
+
+ // Load data for all tabs
+ this.loadEventData(eventId);
+
+ // Show the modal
+ this.modal.style.display = 'block';
+
+ // Select the first tab by default
+ const firstTab = this.modal?.querySelector('.modal-tab') as HTMLElement;
+ if (firstTab) {
+ firstTab.click();
+ }
+ }
+
+ private hideModal(): void {
+ if (!this.modal) return;
+
+ this.modal.style.display = 'none';
+ this.currentEventId = null;
+ }
+
+ private switchTab(event: Event): void {
+ const clickedTab = event.currentTarget as HTMLElement;
+ if (!clickedTab || !clickedTab.dataset.tabId) return;
+
+ // Hide all tab contents
+ const tabContents = document.querySelectorAll('.modal-tab-content');
+ tabContents.forEach(content => {
+ (content as HTMLElement).style.display = 'none';
+ });
+
+ // Remove active class from all tabs
+ const tabs = document.querySelectorAll('.modal-tab');
+ tabs.forEach(tab => {
+ tab.classList.remove('active');
+ });
+
+ // Show selected tab content
+ const selectedContent = document.getElementById(clickedTab.dataset.tabId);
+ if (selectedContent) {
+ selectedContent.style.display = 'block';
+ }
+
+ // Add active class to clicked tab
+ clickedTab.classList.add('active');
+ }
+}
diff --git a/client/src/services/ClientEventStore.ts b/client/src/services/ClientEventStore.ts
new file mode 100644
index 0000000..865e7dc
--- /dev/null
+++ b/client/src/services/ClientEventStore.ts
@@ -0,0 +1,276 @@
+/**
+ * ClientEventStore.ts
+ *
+ * A dedicated store for client-originated KIND 21120 events and their KIND 21121 responses.
+ * This service tracks outgoing requests from the client, as well as any incoming responses,
+ * and maintains the relationships between them.
+ */
+
+import type { NostrEvent } from '../relay';
+import { EventChangeType } from './EventManager';
+
+/**
+ * Enum representing the possible states of a client event
+ */
+export enum ClientEventStatus {
+ Sent, // Event was created and sent to a relay
+ Responded, // A response has been received for this event
+ Pending, // Event is being prepared or sent (not yet confirmed)
+ Failed // There was an error sending the event
+}
+
+/**
+ * Interface representing a stored client event with metadata
+ */
+export interface ClientStoredEvent {
+ id: string; // Event ID
+ event: NostrEvent; // The actual Nostr event (KIND 21120)
+ sentAt: number; // Timestamp when the event was sent
+ status: ClientEventStatus; // Current status of the event
+ responseId?: string; // ID of the response event (if any)
+ responseEvent?: NostrEvent; // The response event (KIND 21121, if received)
+ responseReceivedAt?: number; // Timestamp when the response was received
+}
+
+/**
+ * Interface for client event change listeners
+ */
+export interface ClientEventChangeListener {
+ (eventId: string, changeType: EventChangeType): void;
+}
+
+/**
+ * ClientEventStore class for managing client-side events
+ */
+export class ClientEventStore {
+ // Primary storage for outgoing KIND 21120 events
+ private outgoingEvents: Map<string, ClientStoredEvent> = new Map();
+
+ // Map to track relationships (KIND 21121 eventId -> KIND 21120 eventId)
+ private responseMap: Map<string, string> = new Map();
+
+ // Event change listeners
+ private listeners: ClientEventChangeListener[] = [];
+
+ /**
+ * Add an outgoing KIND 21120 event to the store
+ * @param event The Nostr event to add
+ * @returns The ID of the added event, or null if invalid
+ */
+ public addOutgoingEvent(event: NostrEvent): string | null {
+ if (!event.id) {
+ console.error('Event must have an ID');
+ return null;
+ }
+
+ if (event.kind !== 21120) {
+ console.warn(`Expected KIND 21120 event, got ${event.kind}`);
+ }
+
+ const storedEvent: ClientStoredEvent = {
+ id: event.id,
+ event,
+ sentAt: Date.now(),
+ status: ClientEventStatus.Sent
+ };
+
+ this.outgoingEvents.set(event.id, storedEvent);
+ this.notifyListeners(event.id, EventChangeType.Added);
+ return event.id;
+ }
+
+ /**
+ * Add a KIND 21121 response event to the store and associate it with its request
+ * @param responseEvent The KIND 21121 response event
+ * @returns True if successfully added, false otherwise
+ */
+ public addResponseEvent(responseEvent: NostrEvent): boolean {
+ if (!responseEvent.id) {
+ console.error('Response event must have an ID');
+ return false;
+ }
+
+ if (responseEvent.kind !== 21121) {
+ console.warn(`Expected KIND 21121 event, got ${responseEvent.kind}`);
+ }
+
+ // Extract request event ID from e tag
+ const requestId = this.getRequestIdFromResponseEvent(responseEvent);
+ if (!requestId) {
+ console.error('Response event missing valid e tag with request ID');
+ return false;
+ }
+
+ // Check if we have the outgoing event
+ const outgoingEvent = this.outgoingEvents.get(requestId);
+ if (!outgoingEvent) {
+ console.warn(`Response received for unknown request: ${requestId}`);
+ return false;
+ }
+
+ // Update the outgoing event with response data
+ outgoingEvent.status = ClientEventStatus.Responded;
+ outgoingEvent.responseId = responseEvent.id;
+ outgoingEvent.responseEvent = responseEvent;
+ outgoingEvent.responseReceivedAt = Date.now();
+
+ // Update the outgoing events map
+ this.outgoingEvents.set(requestId, outgoingEvent);
+
+ // Update the response map
+ this.responseMap.set(responseEvent.id, requestId);
+
+ // Notify listeners
+ this.notifyListeners(requestId, EventChangeType.Updated);
+
+ return true;
+ }
+
+ /**
+ * Update the status of an outgoing event
+ * @param eventId The ID of the event to update
+ * @param status The new status
+ * @returns True if successful, false if event not found
+ */
+ public updateEventStatus(eventId: string, status: ClientEventStatus): boolean {
+ const storedEvent = this.outgoingEvents.get(eventId);
+ if (!storedEvent) {
+ return false;
+ }
+
+ storedEvent.status = status;
+ this.outgoingEvents.set(eventId, storedEvent);
+ this.notifyListeners(eventId, EventChangeType.Updated);
+ return true;
+ }
+
+ /**
+ * Get all outgoing events
+ * @returns Array of all client stored events
+ */
+ public getAllEvents(): ClientStoredEvent[] {
+ return Array.from(this.outgoingEvents.values());
+ }
+
+ /**
+ * Get a specific event by ID
+ * @param id The ID of the event to retrieve
+ * @returns The client stored event or null if not found
+ */
+ public getEvent(id: string): ClientStoredEvent | null {
+ return this.outgoingEvents.get(id) || null;
+ }
+
+ /**
+ * Get the response event for a request
+ * @param requestId The ID of the request event
+ * @returns The response event or null if no response yet
+ */
+ public getResponseForEvent(requestId: string): NostrEvent | null {
+ const storedEvent = this.outgoingEvents.get(requestId);
+ return storedEvent?.responseEvent || null;
+ }
+
+ /**
+ * Get the request ID associated with a response
+ * @param responseId The ID of the response event
+ * @returns The request ID or null if not found
+ */
+ public getRequestForResponse(responseId: string): string | null {
+ return this.responseMap.get(responseId) || null;
+ }
+
+ /**
+ * Check if a response event is associated with one of our requests
+ * @param responseEvent The response event to check
+ * @returns True if it's a response to one of our tracked requests
+ */
+ public isResponseToOurRequest(responseEvent: NostrEvent): boolean {
+ const requestId = this.getRequestIdFromResponseEvent(responseEvent);
+ return requestId !== null && this.outgoingEvents.has(requestId);
+ }
+
+ /**
+ * Remove an event and its response (if any)
+ * @param eventId The ID of the event to remove
+ * @returns True if removed, false if not found
+ */
+ public removeEvent(eventId: string): boolean {
+ const storedEvent = this.outgoingEvents.get(eventId);
+ if (!storedEvent) {
+ return false;
+ }
+
+ // If there's a response, remove it from the response map
+ if (storedEvent.responseId) {
+ this.responseMap.delete(storedEvent.responseId);
+ }
+
+ // Remove from outgoing events
+ this.outgoingEvents.delete(eventId);
+
+ // Notify listeners
+ this.notifyListeners(eventId, EventChangeType.Removed);
+
+ return true;
+ }
+
+ /**
+ * Clear all events from the store
+ */
+ public clearAllEvents(): void {
+ const eventIds = Array.from(this.outgoingEvents.keys());
+
+ // Clear storage
+ this.outgoingEvents.clear();
+ this.responseMap.clear();
+
+ // Notify listeners about each removed event
+ for (const id of eventIds) {
+ this.notifyListeners(id, EventChangeType.Removed);
+ }
+ }
+
+ /**
+ * Register a listener for event changes
+ * @param listener The listener function
+ * @returns Function to unregister the listener
+ */
+ public registerListener(listener: ClientEventChangeListener): () => void {
+ this.listeners.push(listener);
+
+ // Return unregister function
+ return () => {
+ const index = this.listeners.indexOf(listener);
+ if (index !== -1) {
+ this.listeners.splice(index, 1);
+ }
+ };
+ }
+
+ /**
+ * Helper to extract request ID from a response event
+ * @param responseEvent The response event
+ * @returns The request ID or null if not found
+ */
+ private getRequestIdFromResponseEvent(responseEvent: NostrEvent): string | null {
+ // Look for an e tag that references the original request
+ const eTag = responseEvent.tags.find(tag => tag[0] === 'e');
+ return eTag && eTag.length > 1 ? eTag[1] : null;
+ }
+
+ /**
+ * Notify all listeners about an event change
+ * @param eventId The ID of the event that changed
+ * @param changeType The type of change
+ */
+ private notifyListeners(eventId: string, changeType: EventChangeType): void {
+ for (const listener of this.listeners) {
+ try {
+ listener(eventId, changeType);
+ } catch (error) {
+ console.error('Error in client event change listener:', error);
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/client/styles/client-events-table.css b/client/styles/client-events-table.css
new file mode 100644
index 0000000..8287896
--- /dev/null
+++ b/client/styles/client-events-table.css
@@ -0,0 +1,190 @@
+/**
+ * Styles for the ClientEventsTable component
+ * Contains styling for:
+ * - Table structure and layout
+ * - Status indicators
+ * - Modal dialog and tab interface
+ */
+
+/* Main table styles */
+.client-events-table {
+ width: 100%;
+ border-collapse: collapse;
+ margin-bottom: 20px;
+ font-size: 14px;
+}
+
+.client-events-table th,
+.client-events-table td {
+ padding: 8px 12px;
+ text-align: left;
+ border-bottom: 1px solid var(--border-color);
+}
+
+.client-events-table th {
+ background-color: var(--bg-secondary);
+ font-weight: bold;
+}
+
+.client-events-table tbody tr:hover {
+ background-color: var(--bg-hover);
+ cursor: pointer;
+}
+
+.client-events-table .table-empty-state {
+ text-align: center;
+ color: var(--text-muted);
+ font-style: italic;
+}
+
+/* Status indicators */
+.status-sent {
+ color: var(--color-info);
+ font-weight: bold;
+}
+
+.status-responded {
+ color: var(--color-success);
+ font-weight: bold;
+}
+
+.status-pending {
+ color: var(--color-warning);
+ font-weight: bold;
+}
+
+.status-failed {
+ color: var(--color-error);
+ font-weight: bold;
+}
+
+/* Row updated highlight effect */
+.client-events-table tr.updated {
+ animation: row-highlight 2s;
+}
+
+@keyframes row-highlight {
+ 0% { background-color: rgba(var(--color-info-rgb), 0.2); }
+ 100% { background-color: transparent; }
+}
+
+/* Modal dialog styles */
+.client-events-modal {
+ position: fixed;
+ top: 0;
+ left: 0;
+ width: 100%;
+ height: 100%;
+ background-color: rgba(0, 0, 0, 0.5);
+ display: flex;
+ justify-content: center;
+ align-items: center;
+ z-index: 1000;
+}
+
+.client-events-modal .modal-content {
+ background-color: var(--bg-primary);
+ border-radius: 8px;
+ box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
+ width: 80%;
+ max-width: 900px;
+ max-height: 80%;
+ overflow: hidden;
+ display: flex;
+ flex-direction: column;
+}
+
+.client-events-modal .modal-close-button {
+ position: absolute;
+ top: 10px;
+ right: 10px;
+ font-size: 24px;
+ background: none;
+ border: none;
+ color: white;
+ cursor: pointer;
+}
+
+/* Tab navigation */
+.client-events-modal .modal-tabs {
+ display: flex;
+ background-color: var(--bg-secondary);
+ border-bottom: 1px solid var(--border-color);
+}
+
+.client-events-modal .modal-tab {
+ padding: 10px 15px;
+ background: none;
+ border: none;
+ border-bottom: 2px solid transparent;
+ cursor: pointer;
+ color: var(--text-primary);
+ font-weight: normal;
+}
+
+.client-events-modal .modal-tab.active {
+ border-bottom: 2px solid var(--color-accent);
+ font-weight: bold;
+}
+
+.client-events-modal .modal-tab:hover {
+ background-color: var(--bg-hover);
+}
+
+/* Tab content */
+.client-events-modal .modal-tab-contents {
+ padding: 15px;
+ overflow-y: auto;
+ max-height: calc(80vh - 50px);
+}
+
+.client-events-modal .modal-tab-content {
+ display: none;
+}
+
+/* JSON content formatting */
+.client-events-modal pre.json-content {
+ background-color: var(--bg-code);
+ padding: 10px;
+ border-radius: 4px;
+ overflow-x: auto;
+ max-height: 350px;
+ font-family: monospace;
+ white-space: pre-wrap;
+}
+
+/* HTTP content formatting */
+.client-events-modal .http-content {
+ background-color: var(--bg-code);
+ padding: 10px;
+ border-radius: 4px;
+ font-family: monospace;
+ white-space: pre-wrap;
+ overflow-x: auto;
+}
+
+.client-events-modal .no-response {
+ padding: 15px;
+ text-align: center;
+ color: var(--text-muted);
+ font-style: italic;
+}
+
+/* Update notification */
+.client-events-modal .modal-update-notification {
+ position: absolute;
+ top: 50px;
+ right: 20px;
+ background-color: var(--color-success);
+ color: white;
+ padding: 10px 15px;
+ border-radius: 4px;
+ animation: fade-in-out 2s;
+}
+
+@keyframes fade-in-out {
+ 0% { opacity: 0; }
+ 10% { opacity: 1; }
+ 90% { opacity: 1; }
+ 100% { opacity: 0; }
+}
\ No newline at end of file