Display front history with pk;switch

Display system front history when the command `pk;switch` is issued without any arguments

src/pluralkit/bot/commands/switch_commands.py

@@ -5,14 +5,16 @@ import dateparser
 import pytz
 
 from pluralkit.bot.commands import *
+from pluralkit.bot.commands.system_commands import system_fronthistory
 from pluralkit.member import Member
 from pluralkit.utils import display_relative
 
 
 async def switch_root(ctx: CommandContext):
     if not ctx.has_next():
-        raise CommandError("You must use a subcommand. For a list of subcommands, type `pk;help member`.")
-
+        # We could raise an error here, but we display the system front history instead as a shortcut
+        #raise CommandError("You must use a subcommand. For a list of subcommands, type `pk;help member`.")
+        await system_fronthistory(ctx, await ctx.ensure_system())
     if ctx.match("out"):
         await switch_out(ctx)
     elif ctx.match("move"):

src/pluralkit/bot/commands/system_commands.py

@@ -244,7 +244,7 @@ async def system_fronthistory(ctx: CommandContext, system: System):
     front_history = await pluralkit.utils.get_front_history(ctx.conn, system.id, count=10)
 
     if not front_history:
-        raise CommandError("You have no logged switches. Use `pk;switch´ to start logging.")
+        raise CommandError("You have no logged switches. Use `pk;switch [member] [extra members...]` to start logging.")
 
     for i, (timestamp, members) in enumerate(front_history):
         # Special case when no one's fronting

src/pluralkit/bot/help.json

@@ -201,11 +201,11 @@
         {
             "name": "switch",
             "aliases": ["sw"],
-            "usage": "switch <member> [member...]",
+            "usage": "switch [member] [extra members...]",
             "category": "Switching",
-            "description": "Registers a switch with the given members.",
-            "longdesc": "You may specify multiple members to indicate cofronting.",
-            "examples": ["switch Jack", "switch Jack Jill"],
+            "description": "Registers a switch with the given members, or displays a list of logged switches if no members are given.",
+            "longdesc": "You may specify multiple members to indicate cofronting. Shows the last 10 switches of a system if no members are given.",
+            "examples": ["switch Jack", "switch Jack Jill", "switch"],
             "subcommands": [
                 {
                     "name": "move",