Add currency settings, Settings service, and dialog to select fiat currency. Add support for non Official currencies like DOGE when using rates.

src/services/app.ts

@@ -12,6 +12,7 @@ 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 { SettingsService } from "./settings.js";
 
 import { EventEmitter } from "../utils/event-emitter.js";
 
@@ -49,6 +50,7 @@ export class AppService extends EventEmitter<AppEventMap> {
   public history: HistoryService;
   public electrum: BlockchainService;
   public rates: RatesService;
+  public settings: SettingsService;
 
   public invitations: Invitation[] = [];
   private invitationEventCleanup = new Map<
@@ -59,7 +61,11 @@ export class AppService extends EventEmitter<AppEventMap> {
     }
   >();
 
-  static async create(seed: string, config: AppConfig): Promise<AppService> {
+  static async create(
+    seed: string,
+    config: AppConfig,
+    settings: SettingsService = new SettingsService(),
+  ): Promise<AppService> {
     // Because of a bug that lets wallets read the unspents of other wallets, we are going to manually namespace the storage paths for the app.
     // We are going to do this by computing a hash of the seed and prefixing the storage paths with it.
     const seedHash = createHash("sha256").update(seed).digest("hex");
@@ -110,9 +116,9 @@ export class AppService extends EventEmitter<AppEventMap> {
       host: config.electrumHost,
       applicationIdentifier: config.electrumApplicationIdentifier,
     });
-    const rates = await RatesService.create();
+    const rates = await RatesService.create(settings);
 
-    return new AppService(engine, walletStorage, config, electrum, rates);
+    return new AppService(engine, walletStorage, config, electrum, rates, settings);
   }
 
   constructor(
@@ -121,6 +127,7 @@ export class AppService extends EventEmitter<AppEventMap> {
     config: AppConfig,
     electrum: BlockchainService,
     rates: RatesService,
+    settings: SettingsService,
   ) {
     super();
 
@@ -129,6 +136,7 @@ export class AppService extends EventEmitter<AppEventMap> {
     this.config = config;
     this.electrum = electrum;
     this.rates = rates;
+    this.settings = settings;
     this.history = new HistoryService(engine, this.invitations);
   }