Fix dispatch-cli stream trying to print event as dispatch

Signed-off-by: Mathias L. Baumann <[email protected]>

Author: Marenz

RELEASE_NOTES.md

@@ -3,3 +3,4 @@
 ## Bug Fixes
 
 * Fix that duration=0 was sent & received as None.
+* Fix that `dispatch-cli stream` would try to print an event as dispatch, causing an exception.

src/frequenz/client/dispatch/__main__.py

@@ -7,7 +7,7 @@
 import os
 from datetime import datetime, timezone
 from pprint import pformat
-from typing import Any, List
+from typing import Any, List, cast
 
 import asyncclick as click
 import grpc
@@ -26,7 +26,7 @@
 )
 from ._client import Client
 from .recurrence import EndCriteria, Frequency, RecurrenceRule, Weekday
-from .types import Dispatch
+from .types import Dispatch, DispatchEvent, Event
 
 DEFAULT_DISPATCH_API_URL = "grpc://fz-0004.frequenz.io:50051"
 
@@ -253,7 +253,9 @@ async def stream(ctx: click.Context, microgrid_id: int) -> None:
         if ctx.obj["raw"]:
             click.echo(pformat(message, compact=True))
         else:
-            print_dispatch(message)
+            msg = cast(DispatchEvent, message)
+            print(f"Dispatch {msg.event.name}")
+            print_dispatch(message.dispatch)
 
 
 def parse_recurrence(kwargs: dict[str, Any]) -> RecurrenceRule | None: