Improve backend structure

backend/routes/messaging.py

@@ -0,0 +1,58 @@
+from datetime import datetime
+from mailbox import Message
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from dependencies import get_current_user, get_db
+from models import SendMessageRequest
+
+
+router = APIRouter()
+
+
+@router.post("/send_message")
+def send_message(
+    request: SendMessageRequest,
+    current_user: dict = Depends(get_current_user),
+    db: Session = Depends(get_db)
+):
+    if not request.content.strip():
+        raise HTTPException(
+            status_code=400,
+            detail="No content provided"
+        )
+
+    new_message = Message(
+        content=request.content.strip(),
+        user_id=current_user["user_id"],
+        timestamp=datetime.now()
+    )
+
+    db.add(new_message)
+    db.commit()
+    db.refresh(new_message)
+
+    return {"status": "success"}
+
+
+@router.get("/get_messages")
+def get_messages(
+    current_user: dict = Depends(get_current_user),
+    db: Session = Depends(get_db)
+):
+    messages = db.query(Message).order_by(Message.timestamp.asc()).all()
+
+    messages_data = []
+    for msg in messages:
+        messages_data.append({
+            "id": msg.id,
+            "content": msg.content,
+            "timestamp": msg.timestamp.isoformat(),
+            "is_author": msg.user_id == current_user["user_id"],
+            "is_read": msg.is_read,
+            "username": msg.author.username
+        })
+
+    return {
+        "status": "success",
+        "messages": messages_data
+    }