# Copyright The IETF Trust 2016-2020, All Rights Reserved
# -*- coding: utf-8 -*-


import debug                            # pyflakes:ignore

from inspect import isclass

from django.urls import re_path
from django.utils.encoding import force_str
from django.views.generic import View

def url(regex, view, kwargs=None, name=None):
    if hasattr(view, "view_class"):
        view_name = "%s.%s" % (view.__module__, view.view_class.__name__)
    elif callable(view) and hasattr(view, '__name__'):
        view_name = "%s.%s" % (view.__module__, view.__name__)
    else:
        view_name = regex

    if name:
        branch = 'name'
    elif isinstance(view, (list, tuple)):
        branch = 'list'
    elif isinstance(view, (str, bytes)):
        branch = 'string'
        name = force_str(view)
    elif callable(view) and hasattr(view, '__name__'):
        branch = 'callable'
        name = view_name
    elif isinstance(view, View):
        branch = 'view'
    elif isclass(view) or hasattr(view, '__class__'):
        branch = 'class'
    else:
        branch = 'notimpl'
        raise NotImplementedError("Auto-named url from view of type %s: %s" % (type(view), view))
    if branch == 'name':
        # List explicit url names with accompanying view dotted-path:
        #debug.say("%s %s" % (view_name, name))
        pass
    if name:
        branch = branch                 # silent pyflakes
        #debug.show('branch')
        #debug.show('name')
        pass
    return re_path(regex, view, kwargs=kwargs, name=name)