feat: Add user initials to the session object

Author: LubomirGeorgiev

src/utils/auth.ts

@@ -23,6 +23,7 @@ import type { SessionValidationResult } from "@/types";
 import { SESSION_COOKIE_NAME } from "@/constants";
 import { ZSAError } from "zsa";
 import { addFreeMonthlyCreditsIfNeeded } from "./credits";
+import { getInitials } from "./name-initials";
 
 const getSessionLength = () => {
   return ms("30d");
@@ -139,6 +140,9 @@ async function validateSessionToken(token: string, userId: string): Promise<Sess
       return null;
     }
 
+    // Update the user initials
+    updatedSession.user.initials = getInitials(`${updatedSession.user.firstName} ${updatedSession.user.lastName}`);
+
     return updatedSession;
   }
 
@@ -153,6 +157,9 @@ async function validateSessionToken(token: string, userId: string): Promise<Sess
     session.user.currentCredits = currentCredits;
   }
 
+  // Update the user initials
+  session.user.initials = getInitials(`${session.user.firstName} ${session.user.lastName}`);
+
   // Return the user data directly from the session
   return session;
 }

src/utils/kv-session.ts

@@ -19,7 +19,9 @@ export interface KVSession {
   userId: string;
   expiresAt: number;
   createdAt: number;
-  user: KVSessionUser;
+  user: KVSessionUser & {
+    initials?: string;
+  };
   country?: string;
   city?: string;
   continent?: string;

src/utils/name-initials.ts

@@ -0,0 +1,23 @@
+/**
+ * Generates initials from a name string
+ * @param name - The full name to generate initials from
+ * @param maxLength - Maximum number of initials to return (default: 2)
+ * @returns The initials as a string
+ */
+export function getInitials(name: string, maxLength = 2): string {
+  if (!name) return ""
+
+  // Split the name into parts and filter out empty strings
+  const parts = name.split(/\s+/).filter(Boolean)
+
+  // If we have no parts, return empty string
+  if (parts.length === 0) return ""
+
+  // Take the first letter of each part up to maxLength
+  const initials = parts
+    .slice(0, maxLength)
+    .map(part => part[0].toUpperCase())
+    .join("")
+
+  return initials
+}