updated the event card in the students dashboard

RIT-EMS-main/frontend/src/components/dashboard/FacultyEventManagement.tsx

@@ -12,7 +12,8 @@ import {
   XCircle,
   Timer,
   ChevronLeft,
-  ChevronDown
+  ChevronDown,
+  Users
 } from 'lucide-react';
 import { cn } from '../../lib/utils';
 import { format } from 'date-fns';
@@ -26,6 +27,7 @@ interface Event {
   status: 'REQUESTED' | 'APPROVED' | 'COMPLETED' | 'CANCELLED' | 'PENDING_PR' | 'HOD_REJECTED' | 'PRINCIPAL_REJECTED';
   rejectionReason?: string;
   category?: string;
+  currentParticipants?: number;
 }
 
 interface FacultyEventManagementProps {
@@ -159,6 +161,12 @@ export const FacultyEventManagement: React.FC<FacultyEventManagementProps> = ({
                               {event.location}
                             </span>
                           </div>
+                          <div className="flex items-center gap-1.5 text-slate-500">
+                            <Users className="w-3.5 h-3.5 text-brand-indigo/60" />
+                            <span className="text-[10px] font-bold">
+                              {event.currentParticipants || 0} Registered
+                            </span>
+                          </div>
                         </div>
                       </div>
 

RIT-EMS-main/frontend/src/components/dashboard/StudentDashboard.tsx

@@ -64,13 +64,45 @@ export const StudentDashboard: React.FC = () => {
       }
     });
 
+    const mapDepartmentToDomain = (dept: string): string => {
+      if (!dept) return '';
+      const d = dept.trim().toUpperCase();
+      if (d === 'AI&DS' || d === 'AIDS' || d === 'AI & DS') return 'AIDS';
+      if (d === 'AI&ML' || d === 'AIML' || d === 'AI & ML') return 'AIML';
+      if (d === 'MECH' || d === 'MECHANICAL') return 'Mechanical';
+      if (d === 'BIOTECH' || d === 'BIO-TECH') return 'Bio-tech';
+      if (d === 'EE(VLSI)' || d === 'VLSI') return 'VLSI';
+      return dept.trim();
+    };
+
+    const mapCategoryToStudentCategory = (dbCat: string, dbType: string): 'TECHNICAL' | 'NON-TECHNICAL' | 'WORKSHOP' | 'CENTRE-ACTIVITY' => {
+      const cat = (dbCat || '').toUpperCase();
+      if (cat === 'TECHNICAL' || cat === 'NON-TECHNICAL' || cat === 'WORKSHOP' || cat === 'CENTRE-ACTIVITY') {
+        return cat as any;
+      }
+      if (cat === 'CENTRE') {
+        return 'CENTRE-ACTIVITY';
+      }
+      if (cat === 'ACADEMIC') {
+        return 'TECHNICAL';
+      }
+      const type = (dbType || '').toLowerCase();
+      if (type === 'workshop') {
+        return 'WORKSHOP';
+      }
+      if (type === 'cultural event' || type === 'cultural') {
+        return 'NON-TECHNICAL';
+      }
+      return 'TECHNICAL';
+    };
+
     return {
       id: String(dbEvent.id),
       title: dbEvent.title || 'Untitled Event',
       location: dbEvent.location || dbEvent.venue || 'TBD',
       date: dbEvent.startDate || dbEvent.date || new Date().toISOString(),
-      category: dbEvent.category || 'TECHNICAL',
+      category: mapCategoryToStudentCategory(dbEvent.category, dbEvent.eventType || dbEvent.type || ''),
-      domain: dbEvent.domain || dbEvent.department || '',
+      domain: mapDepartmentToDomain(dbEvent.domain || dbEvent.department || ''),
       pricingType: dbEvent.hasRegistrationFee ? 'PAID' : 'FREE',
       coordinator: dbEvent.proposer?.fullName || dbEvent.coordinator || 'Faculty Coordinator',
       image: dbEvent.image || 'https://images.unsplash.com/photo-1517694712202-14dd9538aa97?auto=format&fit=crop&q=80&w=800',
@@ -343,7 +375,12 @@ export const StudentDashboard: React.FC = () => {
         return (
           <>
             <Hero events={events} />
-            <UpcomingEventsSlider events={events} />
+            <UpcomingEventsSlider 
+              events={events} 
+              bookedEventIds={bookedEventIds}
+              onToggleBooking={handleToggleBooking}
+              userRole={user?.role}
+            />
             <AboutHubSection />
             <StatsSection events={events} />
             <HomeDashboard 

RIT-EMS-main/frontend/src/components/student/UpcomingEventsSlider.tsx

@@ -10,9 +10,17 @@ const Portal: React.FC<{ children: React.ReactNode }> = ({ children }) => {
 
 interface UpcomingEventsSliderProps {
   events: Event[];
+  bookedEventIds?: string[];
+  onToggleBooking?: (id: string) => void;
+  userRole?: string;
 }
 
-const UpcomingEventsSlider: React.FC<UpcomingEventsSliderProps> = ({ events }) => {
+const UpcomingEventsSlider: React.FC<UpcomingEventsSliderProps> = ({ 
+  events, 
+  bookedEventIds = [], 
+  onToggleBooking, 
+  userRole 
+}) => {
   const [selectedEvent, setSelectedEvent] = useState<Event | null>(null);
   const clubInfo = useMemo(() => selectedEvent ? CLUBS.find(c => c.name === selectedEvent.club) : null, [selectedEvent]);
 
@@ -130,10 +138,17 @@ const UpcomingEventsSlider: React.FC<UpcomingEventsSliderProps> = ({ events }) =
                 </div>
                 
                 <div className="space-y-6 pb-6 mt-6 border-t border-gray-100 pt-6">
-                   <div className="flex items-center gap-2 mb-2">
+                    <div className="flex items-center justify-between gap-2 mb-2">
+                       <div className="flex items-center gap-2">
                           <div className="w-1 h-3 bg-[#f97316] rounded-full"></div>
                           <h4 className="text-[10px] font-black text-slate-800 uppercase tracking-[0.2em]">Summary</h4>
                        </div>
+                       {userRole === 'STUDENT' && bookedEventIds.includes(selectedEvent.id) && (
+                         <span className="px-2.5 py-1 bg-emerald-50 text-emerald-600 border border-emerald-200 text-[8px] font-black rounded-lg uppercase tracking-wider">
+                           Registered
+                         </span>
+                       )}
+                    </div>
                     <div className="relative pt-2">
                        <i className="fas fa-quote-right absolute top-0 right-0 text-5xl text-slate-50 pointer-events-none -z-10"></i>
                        <p className="text-[14px] text-slate-600 leading-relaxed whitespace-pre-wrap font-medium">
@@ -142,7 +157,34 @@ const UpcomingEventsSlider: React.FC<UpcomingEventsSliderProps> = ({ events }) =
                     </div>
                  </div>
 
-                <div className="mt-4 shrink-0 border-t border-gray-100 pt-6">
+                 <div className="mt-4 shrink-0 border-t border-gray-100 pt-6 flex flex-col gap-3">
+                   {userRole === 'STUDENT' && onToggleBooking && (
+                     <>
+                       {bookedEventIds.includes(selectedEvent.id) ? (
+                         <button
+                           onClick={() => {
+                             if (window.confirm(`Are you sure you want to cancel your registration for "${selectedEvent.title}"?`)) {
+                               onToggleBooking(selectedEvent.id);
+                               setSelectedEvent(null);
+                             }
+                           }}
+                           className="w-full py-4 bg-rose-600 text-white rounded-2xl font-black uppercase text-[10px] tracking-widest hover:bg-rose-700 transition-all shadow-xl shadow-rose-200 focus:outline-none focus:ring-4 focus:ring-rose-100"
+                         >
+                           Cancel Registration
+                         </button>
+                       ) : (
+                         <button
+                           onClick={() => {
+                             onToggleBooking(selectedEvent.id);
+                             setSelectedEvent(null);
+                           }}
+                           className="w-full py-4 bg-emerald-600 text-white rounded-2xl font-black uppercase text-[10px] tracking-widest hover:bg-emerald-700 transition-all shadow-xl shadow-emerald-200 focus:outline-none focus:ring-4 focus:ring-emerald-100"
+                         >
+                           Get Tickets
+                         </button>
+                       )}
+                     </>
+                   )}
                    <button 
                      onClick={() => setSelectedEvent(null)}
                      className="w-full py-4 bg-slate-900 text-white rounded-2xl font-black uppercase text-[10px] tracking-widest hover:bg-black transition-all shadow-xl shadow-slate-200 focus:outline-none focus:ring-4 focus:ring-slate-100"

RIT-EMS-main/frontend/src/lib/firebaseBackend.ts

@@ -506,8 +506,15 @@ window.fetch = async function(input: RequestInfo | URL, init?: RequestInit): Pro
       const snap = await getDocs(collection(db, 'ems_events'));
       const events = snap.docs.map(d => d.data());
 
-      // Populate conflicts
+      // Fetch all registrations to compute current participant counts dynamically
+      const regsSnap = await getDocs(collection(db, 'ems_registrations'));
+      const registrations = regsSnap.docs.map(d => d.data());
+
+      // Populate conflicts and currentParticipants
       for (const event of events) {
+        const count = registrations.filter(r => String(r.eventId || r.event_id) === String(event.id)).length;
+        event.currentParticipants = count;
+
         if (!['APPROVED', 'COMPLETED', 'CANCELLED'].includes(event.status)) {
           const conflictMsg = await getConflictMessage(event);
           if (conflictMsg) {
@@ -1049,6 +1056,11 @@ window.fetch = async function(input: RequestInfo | URL, init?: RequestInit): Pro
       };
 
       await setDoc(regDocRef, newReg);
+
+      // Update event's currentParticipants
+      const eventDocRef = doc(db, 'ems_events', String(eventId));
+      await updateDoc(eventDocRef, { currentParticipants: currentParticipants + 1 });
+
       return jsonResponse(newReg);
     }
 
@@ -1100,7 +1112,26 @@ window.fetch = async function(input: RequestInfo | URL, init?: RequestInit): Pro
     if (path.startsWith('/api/registrations/') && method === 'DELETE') {
       const parts = path.split('/');
       const id = parts[parts.length - 1];
-      await deleteDoc(doc(db, 'ems_registrations', String(id)));
+      const regRef = doc(db, 'ems_registrations', String(id));
+      const regSnap = await getDoc(regRef);
+
+      if (regSnap.exists()) {
+        const regData = regSnap.data();
+        const eventId = regData.eventId || regData.event_id;
+
+        await deleteDoc(regRef);
+
+        if (eventId) {
+          const allRegsSnap = await getDocs(collection(db, 'ems_registrations'));
+          const eventRegs = allRegsSnap.docs.map(d => d.data()).filter(r => String(r.eventId || r.event_id) === String(eventId));
+          const currentParticipants = eventRegs.length;
+
+          await updateDoc(doc(db, 'ems_events', String(eventId)), { currentParticipants });
+        }
+      } else {
+        await deleteDoc(regRef);
+      }
+
       return jsonResponse({ message: "Registration deleted successfully" });
     }