Add extracurricular activities and signup validation to the API

Author: rowantervelde

src/app.py

@@ -38,6 +38,45 @@
         "schedule": "Mondays, Wednesdays, Fridays, 2:00 PM - 3:00 PM",
         "max_participants": 30,
         "participants": ["[email protected]", "[email protected]"]
+    },
+    # Sports activities
+    "Soccer Team": {
+        "description": "Team soccer practice and inter-school matches",
+        "schedule": "Mondays, Wednesdays, 4:00 PM - 6:00 PM",
+        "max_participants": 22,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Basketball Team": {
+        "description": "Competitive basketball team training and games",
+        "schedule": "Tuesdays, Thursdays, 4:00 PM - 6:00 PM",
+        "max_participants": 15,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    # Artistic activities
+    "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, stagecraft, and producing school plays",
+        "schedule": "Fridays, 4:00 PM - 6:00 PM",
+        "max_participants": 25,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    # Intellectual activities
+    "Debate Club": {
+        "description": "Develop public speaking, argumentation, and research skills",
+        "schedule": "Thursdays, 3:30 PM - 5:00 PM",
+        "max_participants": 20,
+        "participants": ["[email protected]", "[email protected]"]
+    },
+    "Robotics Club": {
+        "description": "Build and program robots for challenges and competitions",
+        "schedule": "Tuesdays, Fridays, 3:30 PM - 5:30 PM",
+        "max_participants": 16,
+        "participants": ["[email protected]", "[email protected]"]
     }
 }
 
@@ -62,6 +101,10 @@ 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 is already signed up")
+
     # Add student
     activity["participants"].append(email)
     return {"message": f"Signed up {email} for {activity_name}"}

src/static/app.js

@@ -13,6 +13,9 @@ document.addEventListener("DOMContentLoaded", () => {
       // Clear loading message
       activitiesList.innerHTML = "";
 
+      // Reset activity select options to the default
+      activitySelect.innerHTML = "<option value=''>Select an activity</option>";
+
       // Populate activities list
       Object.entries(activities).forEach(([name, details]) => {
         const activityCard = document.createElement("div");
@@ -62,6 +65,9 @@ document.addEventListener("DOMContentLoaded", () => {
         messageDiv.textContent = result.message;
         messageDiv.className = "success";
         signupForm.reset();
+
+        // Refresh activities so the UI reflects the new participant and prevents duplicate attempts
+        fetchActivities();
       } else {
         messageDiv.textContent = result.detail || "An error occurred";
         messageDiv.className = "error";