Improve student activity registration system

requirements.txt

@@ -1,2 +1,5 @@
 fastapi
+typer
+pytest
+requests
 uvicorn

src/app.py

@@ -1,3 +1,123 @@
+
+"""
+High School Management System API
+
+A super simple FastAPI application that allows students to view and sign up
+for extracurricular activities at Mergington High School.
+"""
+
+from fastapi import FastAPI, HTTPException
+from fastapi.staticfiles import StaticFiles
+from fastapi.responses import RedirectResponse
+import os
+from pathlib import Path
+
+app = FastAPI(title="Mergington High School API",
+              description="API for viewing and signing up for extracurricular activities")
+
+# Mount the static files directory
+current_dir = Path(__file__).parent
+app.mount("/static", StaticFiles(directory=os.path.join(Path(__file__).parent,
+          "static")), name="static")
+
+# In-memory activity database
+activities = {
+    "Chess Club": {
+        "description": "Learn strategies and compete in chess tournaments",
+        "schedule": "Fridays, 3:30 PM - 5:00 PM",
+        "max_participants": 12,
+        "participants": ["michael@mergington.edu", "daniel@mergington.edu"]
+    },
+    "Programming Class": {
+        "description": "Learn programming fundamentals and build software projects",
+        "schedule": "Tuesdays and Thursdays, 3:30 PM - 4:30 PM",
+        "max_participants": 20,
+        "participants": ["emma@mergington.edu", "sophia@mergington.edu"]
+    },
+    "Gym Class": {
+        "description": "Physical education and sports activities",
+        "schedule": "Mondays, Wednesdays, Fridays, 2:00 PM - 3:00 PM",
+        "max_participants": 30,
+        "participants": ["john@mergington.edu", "olivia@mergington.edu"]
+    },
+    "Soccer Team": {
+        "description": "Competitive soccer training and interschool matches",
+        "schedule": "Mondays, Wednesdays, 4:00 PM - 6:00 PM",
+        "max_participants": 22,
+        "participants": ["liam@mergington.edu", "noah@mergington.edu"]
+    },
+    "Basketball Club": {
+        "description": "Skills practice, scrimmages, and local tournaments",
+        "schedule": "Tuesdays and Thursdays, 5:00 PM - 7:00 PM",
+        "max_participants": 18,
+        "participants": ["isabella@mergington.edu", "lucas@mergington.edu"]
+    },
+    "Art Studio": {
+        "description": "Painting, drawing, and creative workshops for all levels",
+        "schedule": "Wednesdays, 3:30 PM - 5:00 PM",
+        "max_participants": 15,
+        "participants": ["mia@mergington.edu", "amelia@mergington.edu"]
+    },
+    "Drama Club": {
+        "description": "Acting, stagecraft, and production of school plays",
+        "schedule": "Fridays, 4:00 PM - 6:00 PM",
+        "max_participants": 25,
+        "participants": ["sophia.k@mergington.edu", "ethan@mergington.edu"]
+    },
+    "Debate Team": {
+        "description": "Practice debate formats, public speaking, and competitions",
+        "schedule": "Thursdays, 3:30 PM - 5:00 PM",
+        "max_participants": 16,
+        "participants": ["ava@mergington.edu", "william@mergington.edu"]
+    },
+    "Robotics Club": {
+        "description": "Design, build, and program robots for challenges and fairs",
+        "schedule": "Mondays and Thursdays, 3:30 PM - 5:30 PM",
+        "max_participants": 20,
+        "participants": ["harper@mergington.edu", "jack@mergington.edu"]
+    }
+}
+
+
+@app.get("/")
+def root():
+    return RedirectResponse(url="/static/index.html")
+
+
+@app.get("/activities")
+def get_activities():
+    return activities
+
+
+@app.post("/activities/{activity_name}/signup")
+def signup_for_activity(activity_name: str, email: str):
+    """Sign up a student for an activity"""
+    # Validate activity exists
+    if activity_name not in activities:
+        raise HTTPException(status_code=404, detail="Activity not found")
+
+    # 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}"}
+
+# Unregister endpoint (now correctly placed)
+@app.post("/activities/{activity_name}/unregister")
+def unregister_from_activity(activity_name: str, email: str):
+    """Remove a student from an activity"""
+    if activity_name not in activities:
+        raise HTTPException(status_code=404, detail="Activity not found")
+    activity = activities[activity_name]
+    if email not in activity["participants"]:
+        raise HTTPException(status_code=400, detail="Student not registered for this activity")
+    activity["participants"].remove(email)
+    return {"message": f"Removed {email} from {activity_name}"}
 """
 High School Management System API
 
@@ -38,6 +158,42 @@
         "schedule": "Mondays, Wednesdays, Fridays, 2:00 PM - 3:00 PM",
         "max_participants": 30,
         "participants": ["john@mergington.edu", "olivia@mergington.edu"]
+    },
+    "Soccer Team": {
+        "description": "Competitive soccer training and interschool matches",
+        "schedule": "Mondays, Wednesdays, 4:00 PM - 6:00 PM",
+        "max_participants": 22,
+        "participants": ["liam@mergington.edu", "noah@mergington.edu"]
+    },
+    "Basketball Club": {
+        "description": "Skills practice, scrimmages, and local tournaments",
+        "schedule": "Tuesdays and Thursdays, 5:00 PM - 7:00 PM",
+        "max_participants": 18,
+        "participants": ["isabella@mergington.edu", "lucas@mergington.edu"]
+    },
+    "Art Studio": {
+        "description": "Painting, drawing, and creative workshops for all levels",
+        "schedule": "Wednesdays, 3:30 PM - 5:00 PM",
+        "max_participants": 15,
+        "participants": ["mia@mergington.edu", "amelia@mergington.edu"]
+    },
+    "Drama Club": {
+        "description": "Acting, stagecraft, and production of school plays",
+        "schedule": "Fridays, 4:00 PM - 6:00 PM",
+        "max_participants": 25,
+        "participants": ["sophia.k@mergington.edu", "ethan@mergington.edu"]
+    },
+    "Debate Team": {
+        "description": "Practice debate formats, public speaking, and competitions",
+        "schedule": "Thursdays, 3:30 PM - 5:00 PM",
+        "max_participants": 16,
+        "participants": ["ava@mergington.edu", "william@mergington.edu"]
+    },
+    "Robotics Club": {
+        "description": "Design, build, and program robots for challenges and fairs",
+        "schedule": "Mondays and Thursdays, 3:30 PM - 5:30 PM",
+        "max_participants": 20,
+        "participants": ["harper@mergington.edu", "jack@mergington.edu"]
     }
 }
 
@@ -62,6 +218,10 @@ 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}"}

src/static/app.js

@@ -20,20 +20,80 @@ document.addEventListener("DOMContentLoaded", () => {
 
         const spotsLeft = details.max_participants - details.participants.length;
 
+        // Build participants list HTML with delete icon and no bullets
+        let participantsHTML = "";
+        if (details.participants.length > 0) {
+          participantsHTML = `
+            <div class="participants-section">
+              <span class="participants-title">Participants:</span>
+              <ul class="participants-list no-bullets">
+                ${details.participants.map(p => `
+                  <li class="participant-item">
+                    <span class="participant-email">${p}</span>
+                    <span class="delete-icon" title="Remove participant" data-activity="${name}" data-email="${p}">&#128465;</span>
+                  </li>
+                `).join("")}
+              </ul>
+            </div>
+          `;
+        } else {
+          participantsHTML = `
+            <div class="participants-section">
+              <span class="participants-title">Participants:</span>
+              <p class="participants-none">No participants yet.</p>
+            </div>
+          `;
+        }
+
         activityCard.innerHTML = `
           <h4>${name}</h4>
           <p>${details.description}</p>
           <p><strong>Schedule:</strong> ${details.schedule}</p>
           <p><strong>Availability:</strong> ${spotsLeft} spots left</p>
+          ${participantsHTML}
         `;
 
-        activitiesList.appendChild(activityCard);
+    activitiesList.appendChild(activityCard);
 
-        // Add option to select dropdown
-        const option = document.createElement("option");
-        option.value = name;
-        option.textContent = name;
-        activitySelect.appendChild(option);
+    // Add option to select dropdown
+    const option = document.createElement("option");
+    option.value = name;
+    option.textContent = name;
+    activitySelect.appendChild(option);
+  // Event delegation for delete icon click
+  document.getElementById("activities-list").addEventListener("click", async (event) => {
+    if (event.target.classList.contains("delete-icon")) {
+      const activity = event.target.getAttribute("data-activity");
+      const email = event.target.getAttribute("data-email");
+      if (confirm(`Remove ${email} from ${activity}?`)) {
+        try {
+          const response = await fetch(`/activities/${encodeURIComponent(activity)}/unregister?email=${encodeURIComponent(email)}`, {
+            method: "POST"
+          });
+          const result = await response.json();
+          if (response.ok) {
+            messageDiv.textContent = result.message;
+            messageDiv.className = "success";
+            fetchActivities();
+          } else {
+            messageDiv.textContent = result.detail || "An error occurred";
+            messageDiv.className = "error";
+          }
+          messageDiv.classList.remove("hidden");
+          setTimeout(() => {
+            messageDiv.classList.add("hidden");
+          }, 5000);
+        } catch (error) {
+          messageDiv.textContent = "Failed to remove participant. Please try again.";
+          messageDiv.className = "error";
+          messageDiv.classList.remove("hidden");
+          setTimeout(() => {
+            messageDiv.classList.add("hidden");
+          }, 5000);
+        }
+      }
+    }
+  });
       });
     } catch (error) {
       activitiesList.innerHTML = "<p>Failed to load activities. Please try again later.</p>";

src/static/styles.css

@@ -63,6 +63,7 @@ section h3 {
   border: 1px solid #ddd;
   border-radius: 5px;
   background-color: #f9f9f9;
+  position: relative;
 }
 
 .activity-card h4 {
@@ -142,3 +143,35 @@ footer {
   padding: 20px;
   color: #666;
 }
+
+.participants-section {
+  margin-top: 12px;
+  padding: 10px;
+  background: #eef4fa;
+  border-radius: 4px;
+  border: 1px solid #dde6f3;
+}
+
+.participants-title {
+  font-weight: bold;
+  color: #1a237e;
+  display: block;
+  margin-bottom: 6px;
+}
+
+.participants-list {
+  margin-left: 18px;
+  margin-bottom: 0;
+  color: #333;
+}
+
+.participants-list li {
+  margin-bottom: 4px;
+  list-style-type: disc;
+}
+
+.participants-none {
+  color: #888;
+  font-style: italic;
+  margin-left: 4px;
+}

tests/test_app.py

@@ -0,0 +1,39 @@
+import pytest
+from fastapi.testclient import TestClient
+from src.app import app
+
+client = TestClient(app)
+
+
+def test_get_activities():
+    response = client.get("/activities")
+    assert response.status_code == 200
+    data = response.json()
+    assert "Chess Club" in data
+    assert "Programming Class" in data
+
+
+def test_signup_for_activity():
+    email = "newstudent@mergington.edu"
+    activity = "Chess Club"
+    # Ensure not already signed up
+    client.post(f"/activities/{activity}/unregister?email={email}")
+    response = client.post(f"/activities/{activity}/signup?email={email}")
+    assert response.status_code == 200
+    assert response.json()["message"] == f"Signed up {email} for {activity}"
+    # Try signing up again (should fail)
+    response = client.post(f"/activities/{activity}/signup?email={email}")
+    assert response.status_code == 400
+
+
+def test_unregister_from_activity():
+    email = "newstudent@mergington.edu"
+    activity = "Chess Club"
+    # Ensure signed up
+    client.post(f"/activities/{activity}/signup?email={email}")
+    response = client.post(f"/activities/{activity}/unregister?email={email}")
+    assert response.status_code == 200
+    assert response.json()["message"] == f"Removed {email} from {activity}"
+    # Try unregistering again (should fail)
+    response = client.post(f"/activities/{activity}/unregister?email={email}")
+    assert response.status_code == 400