Change Alur Aplikasi

lib/utils.ts

@@ -1,6 +1,84 @@
-import { clsx, type ClassValue } from 'clsx';
-import { twMerge } from 'tailwind-merge';
+import { type ClassValue, clsx } from "clsx"
+import { twMerge } from "tailwind-merge"
 
 export function cn(...inputs: ClassValue[]) {
-  return twMerge(clsx(inputs));
+  return twMerge(clsx(inputs))
+}
+
+// Session management utilities
+export interface User {
+  id: number;
+  nim?: string;
+  username?: string;
+  nip?: string;
+  role: string;
+}
+
+export interface Session {
+  isAuthenticated: boolean;
+  user?: User;
+  expiresAt?: string;
+  issuedAt?: string;
+}
+
+// Check if user is authenticated
+export async function checkAuth(): Promise<Session> {
+  try {
+    const response = await fetch('/api/auth/check', {
+      method: 'GET',
+      credentials: 'include',
+    });
+
+    if (response.ok) {
+      const data = await response.json();
+      return data;
+    } else {
+      return { isAuthenticated: false };
+    }
+  } catch (error) {
+    console.error('Auth check error:', error);
+    return { isAuthenticated: false };
+  }
+}
+
+// Logout user
+export async function logout(): Promise<boolean> {
+  try {
+    const response = await fetch('/api/auth/logout', {
+      method: 'POST',
+      credentials: 'include',
+    });
+
+    if (response.ok) {
+      // Clear any client-side state
+      localStorage.removeItem('sidebarCollapsed');
+      return true;
+    }
+    return false;
+  } catch (error) {
+    console.error('Logout error:', error);
+    return false;
+  }
+}
+
+// Check if session is expired
+export function isSessionExpired(expiresAt?: string): boolean {
+  if (!expiresAt) return true;
+  
+  const expirationTime = new Date(expiresAt).getTime();
+  const currentTime = Date.now();
+  
+  return currentTime >= expirationTime;
+}
+
+// Format date for display
+export function formatDate(dateString: string): string {
+  const date = new Date(dateString);
+  return date.toLocaleDateString('id-ID', {
+    year: 'numeric',
+    month: 'long',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit'
+  });
 }