Improved help command

src/cpl_cli/command/help_service.py

@@ -1,5 +1,5 @@
+import sys
 import textwrap
-from typing import Optional
 
 from cpl_core.console.console import Console
 from cpl_core.console.foreground_color_enum import ForegroundColorEnum
@@ -21,10 +21,7 @@ class HelpService(CommandABC):
     def help_message(self) -> str:
         return textwrap.dedent("""\
         Lists available command and their short descriptions.
-        Usage: cpl help <command>
-        
-        Arguments:
-            command     The command to display the help message for
+        Usage: cpl help
         """)
 
     def run(self, args: list[str]):
@@ -33,20 +30,9 @@ class HelpService(CommandABC):
         :param args:
         :return:
         """
-        # if len(args) > 0:
-        #     command_name = args[0]
-        #     command: Optional[CommandABC] = None
-        #     for cmd in self._commands:
-        #         if cmd.name == command_name or command_name in cmd.aliases:
-        #             command = self._services.get_service(cmd.command)
-        #
-        #     if command is None:
-        #         Console.error(f'Invalid argument: {command_name}')
-        #         return
-        #
-        #     Console.write_line(command.help_message)
-        #
-        #     return
+        if len(args) > 0:
+            Console.error(f'Unexpected argument(s): {", ".join(args)}')
+            sys.exit()
 
         Console.write_line('Available Commands:')
         commands = [
@@ -68,3 +54,4 @@ class HelpService(CommandABC):
             Console.write(f'\n\t{name} ')
             Console.set_foreground_color(ForegroundColorEnum.default)
             Console.write(f'{description}')
+        Console.write_line('\nRun \'cpl <command> --help\' for command specific information\'s')