Clean up and fixes

src/services/app.ts

@@ -1,4 +1,9 @@
-import { Engine, type XOEngineOptions } from '@xo-cash/engine';
+import { 
+  Engine,
+  type XOEngineOptions,
+  // This is temporary. Will likely be moved to where we import templates in the cli. I think that makes more sense as this is a library thing
+  generateTemplateIdentifier,
+} from '@xo-cash/engine';
 import type { XOInvitation } from '@xo-cash/types';
 
 import { Invitation } from './invitation.js';
@@ -7,6 +12,10 @@ import { SyncServer } from '../utils/sync-server.js';
 
 import { EventEmitter } from '../utils/event-emitter.js';
 
+// TODO: Remove this. Exists to hash the seed for database namespace.
+import { createHash } from 'crypto';
+import { p2pkhTemplate } from '@xo-cash/templates';
+
 export type AppEventMap = {
   'invitation-added': Invitation;
   'invitation-removed': Invitation;
@@ -26,8 +35,32 @@ export class AppService extends EventEmitter<AppEventMap> {
   public invitations: Invitation[] = [];
   
   static async create(seed: string, config: AppConfig): 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');
+    
+    // We want to only prefix the file name
+    const prefixedStoragePath = `${seedHash.slice(0, 8)}-${config.engineConfig.databaseFilename}`;
+
+    console.log('Prefixed storage path:', prefixedStoragePath);
+    console.log('Engine config:', config.engineConfig);
+
     // Create the engine
-    const engine = await Engine.create(seed, config.engineConfig);
+    const engine = await Engine.create(seed, {
+      ...config.engineConfig,
+      databaseFilename: prefixedStoragePath,
+    });
+
+    // TODO: We *technically* dont want this here, but we also need some initial templates for the wallet, so im doing it here
+    // Import the default P2PKH template
+    await engine.importTemplate(p2pkhTemplate);
+
+    // Set default locking parameters for P2PKH
+    await engine.setDefaultLockingParameters(
+      generateTemplateIdentifier(p2pkhTemplate),
+      'receiveOutput',
+      'receiver',
+    );
 
     // Create our own storage for the invitations
     const storage = await Storage.create(config.invitationStoragePath);
@@ -67,9 +100,6 @@ export class AppService extends EventEmitter<AppEventMap> {
   async addInvitation(invitation: Invitation): Promise<void> {
     // Add the invitation to the invitations array
     this.invitations.push(invitation);
-    
-    // Make sure the invitation is started
-    await invitation.start();
 
     // Emit the invitation-added event
     this.emit('invitation-added', invitation);