init

src/seeders/roles.seeder.ts

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+import type { EntityManager } from '@mikro-orm/core';
+import { Role } from '../modules/roles/entities/role.entity';
+import type { Permission } from '../common/enums/permission.enum';
+import type { Permission as PermissionEntity } from '../modules/roles/entities/permission.entity';
+import { rolesData } from './data/roles.data';
+
+export class RolesSeeder {
+  async run(em: EntityManager, permissions: PermissionEntity[]): Promise<Map<string, Role>> {
+    const rolesMap = new Map<string, Role>();
+
+    for (const roleConfig of rolesData) {
+      let role = await em.findOne(Role, { name: roleConfig.name });
+      if (!role) {
+        role = em.create(Role, {
+          name: roleConfig.name,
+          isSystem: true,
+        });
+
+        // Add permissions based on role configuration
+        // TypeScript knows role is not null here because we just created it
+        const newRole = role;
+        // Use the permission filter for all roles
+        const filteredPermissions = permissions.filter(p => roleConfig.permissionFilter(p.name as Permission));
+        filteredPermissions.forEach(p => newRole.permissions.add(p));
+
+        em.persist(newRole);
+      }
+      // Always add to map, whether existing or newly created
+      rolesMap.set(roleConfig.name, role);
+    }
+
+    await em.flush();
+    return rolesMap;
+  }
+}