refactor: centralized the iam seeder

packages/iam-seed/src/iam-seed.module.ts

@@ -0,0 +1,39 @@
+import { DynamicModule, Module } from "@nestjs/common";
+
+import { IamBaselineSeeder } from "./iam-baseline.seeder";
+import { IAM_SEED_OPTIONS } from "./iam-seed.constants";
+import { IamSeedOptions } from "./iam-seed.types";
+
+/**
+ * Provides `IamBaselineSeeder`. The app calls `run()` itself — usually from
+ * `onApplicationBootstrap`, after whatever seeder creates the organization the
+ * super admin attaches to.
+ *
+ *     IamSeedModule.forRoot({
+ *       superAdmin: {
+ *         username: "superadmin",
+ *         name: { am: "ሱፐር አድሚን", en: "Super Admin" },
+ *         roleKey: "super_admin",
+ *         organizationKey: "edr_freight",
+ *         unitKey: "edr_freight_app",
+ *         fallbackEmail: "superadmin@tria.com",
+ *       },
+ *     })
+ *
+ * Any section left out keeps the value from `DEFAULT_IAM_BASELINE_SEED`. The
+ * seeder needs a TypeORM `DataSource` that can reach the `iam` schema; the app's
+ * default one is used, so `TypeOrmModule.forRoot*` must be registered.
+ */
+@Module({})
+export class IamSeedModule {
+  static forRoot(options: IamSeedOptions = {}): DynamicModule {
+    return {
+      module: IamSeedModule,
+      providers: [
+        { provide: IAM_SEED_OPTIONS, useValue: options },
+        IamBaselineSeeder,
+      ],
+      exports: [IamBaselineSeeder],
+    };
+  }
+}