from myfasthtml.controls.VisNetwork import VisNetwork
from myfasthtml.core.commands import CommandsManager
from myfasthtml.core.instances import SingleInstance
from myfasthtml.core.network_utils import from_parent_child_list


class CommandsDebugger(SingleInstance):
  """
  Represents a debugger designed for visualizing and managing commands in a parent-child
  hierarchical structure.
  """
  def __init__(self, parent, _id=None):
    super().__init__(parent, _id=_id)
  
  def render(self):
    commands = self._get_commands()
    nodes, edges = from_parent_child_list(commands,
                                          id_getter=lambda x: str(x.id),
                                          label_getter=lambda x: x.name,
                                          parent_getter=lambda x: str(self.get_command_parent(x))
                                          )
    
    vis_network = VisNetwork(self, nodes=nodes, edges=edges)
    return vis_network
  
  @staticmethod
  def get_command_parent(command):
    if (ft := command.get_ft()) is None:
      return None
    if hasattr(ft, "get_id") and callable(ft.get_id):
      return ft.get_id()
    if hasattr(ft, "get_prefix") and callable(ft.get_prefix):
      return ft.get_prefix()
    if hasattr(ft, "attrs"):
      return ft.attrs.get("id", None)
    
    return None
  
  def _get_commands(self):
    return list(CommandsManager.commands.values())
  
  def __ft__(self):
    return self.render()