fix:chat

backend/blueprints/chat/__init__.py

@@ -3,6 +3,7 @@ from uuid import UUID
 from db.model import db, User, Course, Enrollment,Chat
 from utils.auth import auth_required
 import requests
+from sqlalchemy import desc
 
 chat = Blueprint('chat', __name__)
 
@@ -122,5 +123,61 @@ def create_chat():
 
         return jsonify({"message": "Chat sent successfully.", "chat_id": str(new_chat.id)}), 201
 
+    except Exception as e:
+        return jsonify({"error": f"An error occurred: {str(e)}"}), 500
+
+@chat.route("/get", methods=["GET"])
+@auth_required()
+def get_chat_history():
+    """
+    Fetch chat history for a course.
+    """
+    current_user = g.current_user  # Logged-in user
+    course_id = request.args.get("course_id")
+    limit = int(request.args.get("limit", 20))  # Default to 20 messages
+    offset = int(request.args.get("offset", 0))  # Default to no offset (latest chats)
+
+    if not course_id:
+        return jsonify({"error": "Course ID is required."}), 400
+
+    try:
+        # Verify the course exists
+        course = db.session.query(Course).filter_by(id=course_id).first()
+        if not course:
+            return jsonify({"error": "Invalid course ID."}), 404
+
+        # Check if the user is enrolled in the course
+        is_enrolled = db.session.query(Course).join(Enrollment).filter(
+            Enrollment.userID == current_user.id,
+            Enrollment.courseID == course_id
+        ).first()
+
+        if not is_enrolled:
+            return jsonify({"error": "You are not enrolled in this course."}), 403
+
+        # Fetch the latest chat messages with limit and offset
+        chats = (
+            db.session.query(Chat)
+            .filter_by(courseID=course_id)
+            .order_by(desc(Chat.chatDate))
+            .offset(offset)
+            .limit(limit)
+            .all()
+        )
+
+        # Format the chat messages
+        chat_history = [
+            {
+                "id": str(chat.id),
+                "textContent": chat.textContent,
+                "userID": str(chat.userID),
+                "chatDate": chat.chatDate.isoformat(),
+                "is_mine": chat.userID == current_user.id,
+            }
+            for chat in chats
+        ]
+
+        return jsonify({"chats": chat_history}), 200
+
     except Exception as e:
         return jsonify({"error": f"An error occurred: {str(e)}"}), 500

backend/blueprints/profile/__init__.py

@@ -113,17 +113,17 @@ def manage_profile():
 
     if request.method == 'GET':
         try:
-            profile_url = url_for('send_file', filename=current_user.pfpFilename, _external=True)
+            profile_picture = url_for('send_file', filename=current_user.pfpFilename, _external=True)
         except:
-            profile_url = ""
+            profile_picture = ""
 
         try:
             # Construct the user profile data
             profile_data = {
                 "id": str(current_user.id),
                 "email": current_user.email,
-                "first_name": current_user.firstName,
+                "firstName": current_user.firstName,
-                "last_name": current_user.lastName,
+                "lastName": current_user.lastName,
                 "username": current_user.username,
                 "dob": current_user.dob.isoformat() if current_user.dob else None,
                 "joined_date": current_user.joinedDate.isoformat(),
@@ -131,7 +131,7 @@ def manage_profile():
                 "bio": current_user.bio,
                 "role": current_user.role,
                 "pfp_filename": current_user.pfpFilename,
-                "profile_url": profile_url,
+                "profile_picture": profile_picture,
             }
 
             return jsonify({"profile": profile_data}), 200