from typing import Optional
from ..command_handler import CommandHandler

class DocumentationHandler(CommandHandler):
   def __init__(self, commands, successor: Optional["CommandHandler"] = None):
        super().__init__(successor)
        self.commands = commands

    def handle_command(self, command):
        if command.lower() in self.commands:
            print(self.execute_command())
        else:
            super().handle_command(command)

    def execute_command(self):
        return "Download ..."