refactor(infra): directory structure (#4615)

packages/backend/server/src/storage/index.ts

@@ -0,0 +1,50 @@
+import { createRequire } from 'node:module';
+
+import { type DynamicModule, type FactoryProvider } from '@nestjs/common';
+
+import { Config } from '../config';
+
+export const StorageProvide = Symbol('Storage');
+
+let storageModule: typeof import('@affine/storage');
+try {
+  storageModule = await import('@affine/storage');
+} catch {
+  const require = createRequire(import.meta.url);
+  storageModule = require('../../storage.node');
+}
+
+export class StorageModule {
+  static forRoot(): DynamicModule {
+    const storageProvider: FactoryProvider = {
+      provide: StorageProvide,
+      useFactory: async (config: Config) => {
+        return storageModule.Storage.connect(config.db.url);
+      },
+      inject: [Config],
+    };
+
+    return {
+      global: true,
+      module: StorageModule,
+      providers: [storageProvider],
+      exports: [storageProvider],
+    };
+  }
+}
+
+export const mergeUpdatesInApplyWay = storageModule.mergeUpdatesInApplyWay;
+
+export const verifyChallengeResponse = async (
+  response: any,
+  bits: number,
+  resource: string
+) => {
+  if (typeof response !== 'string' || !response || !resource) return false;
+  return storageModule.verifyChallengeResponse(response, bits, resource);
+};
+
+export const mintChallengeResponse = async (resource: string, bits: number) => {
+  if (!resource) return null;
+  return storageModule.mintChallengeResponse(resource, bits);
+};