added usage limit visuals and DB

models.py

@@ -165,6 +165,46 @@ class SiteSettings(db.Model):
             db.session.commit()
         return settings
 
+class DocuPulseSettings(db.Model):
+    __tablename__ = 'docupulse_settings'
+    id = db.Column(db.Integer, primary_key=True)
+    max_rooms = db.Column(db.Integer, default=10)
+    max_conversations = db.Column(db.Integer, default=10)
+    max_storage = db.Column(db.Integer, default=10737418240)  # 10GB in bytes
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    @classmethod
+    def get_settings(cls):
+        settings = cls.query.first()
+        if not settings:
+            settings = cls(
+                max_rooms=10,
+                max_conversations=10,
+                max_storage=10737418240  # 10GB in bytes
+            )
+            db.session.add(settings)
+            db.session.commit()
+        return settings
+
+    @classmethod
+    def get_usage_stats(cls):
+        settings = cls.get_settings()
+        total_rooms = Room.query.count()
+        total_conversations = Conversation.query.count()
+        total_storage = db.session.query(db.func.sum(RoomFile.size)).filter(RoomFile.deleted == False).scalar() or 0
+        
+        return {
+            'max_rooms': settings.max_rooms,
+            'max_conversations': settings.max_conversations,
+            'max_storage': settings.max_storage,
+            'current_rooms': total_rooms,
+            'current_conversations': total_conversations,
+            'current_storage': total_storage,
+            'rooms_percentage': (total_rooms / settings.max_rooms) * 100 if settings.max_rooms > 0 else 0,
+            'conversations_percentage': (total_conversations / settings.max_conversations) * 100 if settings.max_conversations > 0 else 0,
+            'storage_percentage': (total_storage / settings.max_storage) * 100 if settings.max_storage > 0 else 0
+        }
+
 class KeyValueSettings(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     key = db.Column(db.String(100), unique=True, nullable=False)