first commit

app/realtime/schemas.py

@@ -0,0 +1,48 @@
+from datetime import datetime
+from typing import Any, Literal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from app.messages.models import MessageType
+
+
+RealtimeEventName = Literal[
+    "connect",
+    "disconnect",
+    "send_message",
+    "receive_message",
+    "typing_start",
+    "typing_stop",
+    "message_read",
+    "message_delivered",
+    "error",
+]
+
+
+class SendMessagePayload(BaseModel):
+    chat_id: int
+    type: MessageType = MessageType.TEXT
+    text: str | None = Field(default=None, max_length=4096)
+    temp_id: str | None = None
+
+
+class ChatEventPayload(BaseModel):
+    chat_id: int
+
+
+class MessageStatusPayload(BaseModel):
+    chat_id: int
+    message_id: int
+
+
+class IncomingRealtimeEvent(BaseModel):
+    event: Literal["send_message", "typing_start", "typing_stop", "message_read", "message_delivered"]
+    payload: dict[str, Any]
+
+
+class OutgoingRealtimeEvent(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    event: RealtimeEventName
+    payload: dict[str, Any]
+    timestamp: datetime