Initial MRP foundation scaffold

server/src/lib/current-user.ts

@@ -0,0 +1,47 @@
+import type { AuthUser, PermissionKey } from "@mrp/shared";
+
+import { prisma } from "./prisma.js";
+
+export async function getCurrentUserById(userId: string): Promise<AuthUser | null> {
+  const user = await prisma.user.findUnique({
+    where: { id: userId },
+    include: {
+      userRoles: {
+        include: {
+          role: {
+            include: {
+              rolePermissions: {
+                include: {
+                  permission: true,
+                },
+              },
+            },
+          },
+        },
+      },
+    },
+  });
+
+  if (!user) {
+    return null;
+  }
+
+  const permissionKeys = new Set<PermissionKey>();
+  const roleNames = user.userRoles.map(({ role }) => {
+    for (const rolePermission of role.rolePermissions) {
+      permissionKeys.add(rolePermission.permission.key as PermissionKey);
+    }
+
+    return role.name;
+  });
+
+  return {
+    id: user.id,
+    email: user.email,
+    firstName: user.firstName,
+    lastName: user.lastName,
+    roles: roleNames,
+    permissions: [...permissionKeys],
+  };
+}
+