add web frontend menu management

http_server/izzylib/http_server/__init__.py

@@ -3,7 +3,7 @@ from datetime import datetime
 start_time = datetime.now()
 
 from .application import Application
-from .config import Config
+from .config import Config, UserLevel
 from .request import Request
 from .response import Response
 from .view import View

http_server/izzylib/http_server/application.py

@@ -9,7 +9,7 @@ from urllib.parse import parse_qsl, urlparse
 from izzylib import DotDict, Path, logging
 from izzylib.template import Template
 
-from .config import Config
+from .config import Config, UserLevel
 from .error_handlers import GenericError, MissingTemplateError
 from .middleware import AccessLog, Headers
 from .view import Manifest, Style
@@ -67,6 +67,9 @@ class Application(sanic.Sanic):
 		for route in cls.paths:
 			self.add_route(cls.as_view(), route)
 
+		if cls.menu:
+			self.set_menu_item(*cls.menu)
+
 
 	def add_error_handler(self, handler):
 		handle = handler(self)
@@ -78,6 +81,18 @@ class Application(sanic.Sanic):
 		self.register_middleware(mw.handler, mw.attach)
 
 
+	def get_menu_item(self, name, level=0):
+		return self.cfg.menu[parse_level(level)][name]
+
+
+	def set_menu_item(self, name, path, level=0):
+		self.cfg.menu[parse_level(level)][name] = path
+
+
+	def del_menu_item(self, name, level=0):
+		del self.cfg.menu[parse_level(level)][name]
+
+
 	def start(self):
 		# register built-in middleware now so they're last in the chain
 		self.add_middleware(Headers)
@@ -104,3 +119,16 @@ class Application(sanic.Sanic):
 
 		self.stop()
 		logging.info('Bye! :3')
+
+
+def parse_level(level):
+	if type(level) == int:
+		new_level = UserLevel(level)
+
+	elif type(level) == str:
+		new_level = UserLevel[level.upper()] 
+
+	elif type(level) != UserLevel:
+		raise TypeError(f'User level must be a string, integer, or UserLevel, not a {level.__class__.__name__}')
+
+	return new_level

http_server/izzylib/http_server/config.py

@@ -1,3 +1,4 @@
+from enum import Enum
 from izzylib import DotDict
 from multiprocessing import cpu_count
 
@@ -5,6 +6,13 @@ from .request import Request
 from .response import Response
 
 
+class UserLevel(Enum):
+	GUEST = 0
+	USER = 10
+	MODERATOR = 20
+	ADMIN = 30
+
+
 class Config(DotDict):
 	defaults = dict(
 		name = 'IzzyLib Http Server',
@@ -22,16 +30,24 @@ class Config(DotDict):
 		sig_handler = None,
 		sig_handler_args = [],
 		sig_handler_kwargs = {},
-		menu = {},
 		tpl_search = [],
 		tpl_globals = {},
 		tpl_context = None,
 		tpl_autoescape = True,
-		tpl_default = True
+		tpl_default = True,
+		menu = {
+			UserLevel.GUEST: {},
+			UserLevel.USER: {},
+			UserLevel.MODERATOR: {},
+			UserLevel.ADMIN: {}
+		}
 	)
 
 
 	def __init__(self, **kwargs):
+		if kwargs.pop('menu', None):
+			raise ValueError('Use the Application.set_menu_item function to set menu items')
+
 		super().__init__({**self.defaults, **kwargs})
 
 		if kwargs.get('host') and not kwargs.get('web_host'):
@@ -39,6 +55,9 @@ class Config(DotDict):
 
 
 	def __setitem__(self, key, value):
+		if key == 'menu':
+			raise KeyError('Use the Application.set_menu_item function to set menu items')
+
 		if key not in self.defaults.keys():
 			raise KeyError(f'Invalid config key {key}')
 

http_server/izzylib/http_server/view.py

@@ -6,6 +6,7 @@ from .response import Response
 
 class View(HTTPMethodView):
 	routes = []
+	menu = None # example: ("Home", "\", 0)
 
 
 	def dispatch_request(self, request, *args, **kwargs):

http_server/setup.py

@@ -3,8 +3,8 @@ from setuptools import setup, find_namespace_packages
 
 
 requires = [
-	'sanic==20.12.3',
-	'sanic-cors==1.0.0',
+	'sanic=>20.12.3',
+	'sanic-cors=>1.0.0',
 ]