rewrite (core): Refactor lion* classes.

src/core/lion_user.py

@@ -0,0 +1,71 @@
+from typing import Optional
+import discord
+import pytz
+
+from meta import LionBot
+from utils.lib import utc_now, Timezoned
+from settings.groups import ModelConfig, SettingDotDict
+
+from .data import CoreData
+
+
+class UserConfig(ModelConfig):
+    settings = SettingDotDict()
+    _model_settings = set()
+    model = CoreData.User
+
+    @property
+    def timezone(self) -> pytz.timezone:
+        return self.get('timezone')
+
+
+class LionUser(Timezoned):
+    """
+    Represents a User in the LionBot paradigm.
+
+    Provides central access to cached data and configuration for a User.
+
+    No guarantee is made that the client has access to this User.
+    """
+    __slots__ = ('bot', 'data', 'userid', '_user', 'config', '__weakref__')
+
+    Config = UserConfig
+    settings = Config.settings
+
+    def __init__(self, bot: LionBot, data: CoreData.User, user: Optional[discord.User] = None):
+        self.bot = bot
+        self.data = data
+        self.userid = data.userid
+
+        self._user = user
+
+        self.config = self.Config(self.userid, data)
+
+    @property
+    def user(self):
+        if self._user is None:
+            self._user = self.bot.get_user(self.userid)
+        return self._user
+
+    @property
+    def timezone(self) -> pytz.timezone:
+        return self.config.timezone.value
+
+    async def touch_discord_model(self, user: discord.User, seen=True):
+        """
+        Updated stored Discord model attributes for this user.
+        """
+        to_update = {}
+
+        avatar_key = user.avatar.key if user.avatar else None
+        if self.data.avatar_hash != avatar_key:
+            to_update['avatar_hash'] = avatar_key
+
+        if self.data.name != user.name:
+            to_update['name'] = user.name
+
+        if seen:
+            to_update['last_seen'] = utc_now()
+
+        if to_update:
+            await self.data.update(**to_update)