import pkgutil
import sys

# allowed command modules (please append them alphabetically ordered)
import tclCommands.TclCommandAddPolygon
import tclCommands.TclCommandAddPolyline
import tclCommands.TclCommandCncjob
import tclCommands.TclCommandDrillcncjob
import tclCommands.TclCommandExportGcode
import tclCommands.TclCommandExteriors
import tclCommands.TclCommandImportSvg
import tclCommands.TclCommandInteriors
import tclCommands.TclCommandIsolate
import tclCommands.TclCommandNew
import tclCommands.TclCommandOpenGerber


__all__ = []

for loader, name, is_pkg in pkgutil.walk_packages(__path__):
    module = loader.find_module(name).load_module(name)
    __all__.append(name)


def register_all_commands(app, commands):
    """
    Static method which register all known commands.

    Command should  be for now in directory test_tclCommands and module should start with TCLCommand
    Class  have to follow same  name as module.

    we need import all  modules  in top section:
    import test_tclCommands.TclCommandExteriors
    at this stage we can include only wanted  commands  with this, auto loading may be implemented in future
    I have no enough knowledge about python's anatomy. Would be nice to include all classes which are descendant etc.

    :param app: FlatCAMApp
    :param commands: array of commands  which should be modified
    :return: None
    """

    tcl_modules = {k: v for k, v in sys.modules.items() if k.startswith('test_tclCommands.TclCommand')}

    for key, mod in tcl_modules.items():
        if key != 'test_tclCommands.TclCommand':
            class_name = key.split('.')[1]
            class_type = getattr(mod, class_name)
            command_instance = class_type(app)

            for alias in command_instance.aliases:
                commands[alias] = {
                    'fcn': command_instance.execute_wrapper,
                    'help': command_instance.get_decorated_help()
                }