Reworked get_application_command behaviour (#1678)

* get_application_command rework

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Updated to run in same for loop

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Lala Sabathil <lala@pycord.dev>
Co-authored-by: BobDotCom <71356958+BobDotCom@users.noreply.github.com>

discord/bot.py

@@ -179,7 +179,7 @@ def get_application_command(
         self,
         name: str,
         guild_ids: list[int] | None = None,
-        type: type[ApplicationCommand] = SlashCommand,
+        type: type[ApplicationCommand] = ApplicationCommand,
     ) -> ApplicationCommand | None:
         """Get a :class:`.ApplicationCommand` from the internal list
         of commands.
@@ -189,23 +189,39 @@ def get_application_command(
         Parameters
         ----------
         name: :class:`str`
-            The name of the command to get.
+            The qualified name of the command to get.
         guild_ids: List[:class:`int`]
             The guild ids associated to the command to get.
         type: Type[:class:`.ApplicationCommand`]
-            The type of the command to get. Defaults to :class:`.SlashCommand`.
+            The type of the command to get. Defaults to :class:`.ApplicationCommand`.
 
         Returns
         -------
         Optional[:class:`.ApplicationCommand`]
             The command that was requested. If not found, returns ``None``.
         """
-
-        for command in self._application_commands.values():
+        commands = self._application_commands.values()
+        for command in commands:
             if command.name == name and isinstance(command, type):
                 if guild_ids is not None and command.guild_ids != guild_ids:
                     return
                 return command
+            elif (names := name.split())[0] == command.name and isinstance(
+                command, SlashCommandGroup
+            ):
+                while len(names) > 1:
+                    command = get(commands, name=names.pop(0))
+                    if not isinstance(command, SlashCommandGroup) or (
+                        guild_ids is not None and command.guild_ids != guild_ids
+                    ):
+                        return
+                    commands = command.subcommands
+                command = get(commands, name=names.pop())
+                if not isinstance(command, type) or (
+                    guild_ids is not None and command.guild_ids != guild_ids
+                ):
+                    return
+                return command
 
     async def get_desynced_commands(
         self,