feat: add new extracurricular activities and participant validation to signup function

Author: Bhargava49

src/app.py

@@ -38,6 +38,42 @@
         "schedule": "Mondays, Wednesdays, Fridays, 2:00 PM - 3:00 PM",
         "max_participants": 30,
         "participants": ["[email protected]", "[email protected]"]
+    },
+    "Soccer Team": {
+        "description": "Competitive soccer team training and matches",
+        "schedule": "Monday, Wednesday, Friday, 4:00 PM - 6:00 PM",
+        "max_participants": 22,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Basketball Club": {
+        "description": "Pickup games, drills, and intramural tournaments",
+        "schedule": "Tuesdays and Thursdays, 5:00 PM - 7:00 PM",
+        "max_participants": 15,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Art Club": {
+        "description": "Explore drawing, painting, and mixed media projects",
+        "schedule": "Wednesdays, 3:30 PM - 5:00 PM",
+        "max_participants": 18,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Drama Club": {
+        "description": "Acting workshops, rehearsals, and stage productions",
+        "schedule": "Thursdays, 4:00 PM - 6:30 PM",
+        "max_participants": 25,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Debate Team": {
+        "description": "Practice public speaking, research, and competitive debates",
+        "schedule": "Mondays and Thursdays, 4:00 PM - 5:30 PM",
+        "max_participants": 16,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Math Club": {
+        "description": "Problem-solving sessions and preparation for math competitions",
+        "schedule": "Fridays, 3:30 PM - 4:30 PM",
+        "max_participants": 20,
+        "participants": ["[email protected]", "[email protected]"]
     }
 }
 
@@ -62,6 +98,10 @@ def signup_for_activity(activity_name: str, email: str):
     # Get the specific activity
     activity = activities[activity_name]
 
+    # Validate student is not already signed up
+    if email in activity["participants"]:
+        raise HTTPException(status_code=400, detail="Student already signed up for this activity")
+
     # Add student
     activity["participants"].append(email)
     return {"message": f"Signed up {email} for {activity_name}"}