Add oracle rates

src/services/app.ts

@@ -11,6 +11,7 @@ import { BaseStorage, Storage } from "./storage.js";
 import { SyncServer } from "../utils/sync-server.js";
 import { HistoryService } from "./history.js";
 import { type BlockchainService, ElectrumService } from "./electrum.js";
+import { RatesService } from "./rates.js";
 
 import { EventEmitter } from "../utils/event-emitter.js";
 
@@ -46,6 +47,7 @@ export class AppService extends EventEmitter<AppEventMap> {
   public config: AppConfig;
   public history: HistoryService;
   public electrum: BlockchainService;
+  public rates: RatesService;
 
   public invitations: Invitation[] = [];
   private invitationEventCleanup = new Map<
@@ -107,8 +109,9 @@ export class AppService extends EventEmitter<AppEventMap> {
       host: config.electrumHost,
       applicationIdentifier: config.electrumApplicationIdentifier,
     });
+    const rates = await RatesService.create();
 
-    return new AppService(engine, walletStorage, config, electrum);
+    return new AppService(engine, walletStorage, config, electrum, rates);
   }
 
   constructor(
@@ -116,6 +119,7 @@ export class AppService extends EventEmitter<AppEventMap> {
     storage: BaseStorage,
     config: AppConfig,
     electrum: BlockchainService,
+    rates: RatesService,
   ) {
     super();
 
@@ -123,6 +127,7 @@ export class AppService extends EventEmitter<AppEventMap> {
     this.storage = storage;
     this.config = config;
     this.electrum = electrum;
+    this.rates = rates;
     this.history = new HistoryService(engine, this.invitations);
   }
 
@@ -257,6 +262,11 @@ export class AppService extends EventEmitter<AppEventMap> {
   }
 
   async start(): Promise<void> {
+    // Start rates in the background so BCH -> fiat conversions become reactive in the TUI.
+    this.rates.start().catch((err) =>
+      console.error('Error starting rates service:', err),
+    );
+
     // Get the invitations db
     const invitationsDb = this.storage.child("invitations");