message implémente un identifiant généré automatiquement

million/model/message.py

 from datetime import datetime
-from math import floor
 from typing import Any, List
-from pydantic import BaseModel
+from uuid import uuid4
+from pydantic import BaseModel, PrivateAttr, computed_field
 
 class Reaction(BaseModel):
     reaction: str
     is_unsent: bool | None = None
     is_geoblocked_for_viewer: bool
 
+    _id: str = PrivateAttr(default_factory=lambda: str(uuid4()))
+
     def __str__(self) -> str:
         dt = datetime.fromtimestamp(self.timestamp_ms / 1000)
         dt_str = dt.strftime("%d/%m/%Y, %H:%M:%S")
         return f"{self.sender_name}({dt_str}) : {self.content}"
 
     def __hash__(self) -> int:
-        return hash(self.sender_name + str(self.timestamp_ms))
+        return hash(self.item_id)
+    
+    @computed_field
+    @property
+    def item_id(self) -> str:
+        return self._id