Change raw events to use slotted data models instead of parameters.

This allows for internal changes in Discord to not cause a breaking
change every time something changes.

Also implements #1214 which adds guild_id to every event where
applicable.

This is a breaking change.

discord/raw_models.py

@@ -0,0 +1,146 @@
+# -*- coding: utf-8 -*-
+
+"""
+The MIT License (MIT)
+
+Copyright (c) 2015-2018 Rapptz
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+"""
+
+class RawMessageDeleteEvent:
+    """Represents the event payload for a :func:`on_raw_message_delete` event.
+
+    Attributes
+    ------------
+    channel_id: :class:`int`
+        The channel ID where the deletion took place.
+    guild_id: Optional[:class:`int`]
+        The guild ID where the deletion took place, if applicable.
+    message_id: :class:`int`
+        The message ID that got deleted.
+    """
+
+    __slots__ = ('message_id', 'channel_id', 'guild_id')
+
+    def __init__(self, data):
+        self.message_id = int(data['id'])
+        self.channel_id = int(data['channel_id'])
+
+        try:
+            self.guild_id = int(data['guild_id'])
+        except KeyError:
+            self.guild_id = None
+
+class RawBulkMessageDeleteEvent:
+    """Represents the event payload for a :func:`on_raw_bulk_message_delete` event.
+
+    Attributes
+    -----------
+    message_ids: Set[:class:`int`]
+        A :class:`set` of the message IDs that were deleted.
+    channel_id: :class:`int`
+        The channel ID where the message got deleted.
+    guild_id: Optional[:class:`int`]
+        The guild ID where the message got deleted, if applicable.
+    """
+
+    __slots__ = ('message_ids', 'channel_id', 'guild_id')
+
+    def __init__(self, data):
+        self.message_ids = { int(x) for x in data.get('ids', []) }
+        self.channel_id = int(data['channel_id'])
+
+        try:
+            self.guild_id = int(data['guild_id'])
+        except KeyError:
+            self.guild_id = None
+
+class RawMessageUpdateEvent:
+    """Represents the payload for a :func:`on_raw_message_edit` event.
+
+    Attributes
+    -----------
+    message_id: :class:`int`
+        The message ID that got updated.
+    data: :class:`dict`
+        The raw data given by the
+        `gateway <https://discordapp.com/developers/docs/topics/gateway#message-update>`_
+    """
+
+    __slots__ = ('message_id', 'data')
+
+    def __init__(self, data):
+        self.message_id = int(data['id'])
+        self.data = data
+
+class RawReactionActionEvent:
+    """Represents the payload for a :func:`on_raw_reaction_add` or
+    :func:`on_raw_reaction_remove` event.
+
+    Attributes
+    -----------
+    message_id: :class:`int`
+        The message ID that got or lost a reaction.
+    user_id: :class:`int`
+        The user ID who added or removed the reaction.
+    channel_id: :class:`int`
+        The channel ID where the reaction got added or removed.
+    guild_id: Optional[:class:`int`]
+        The guild ID where the reaction got added or removed, if applicable.
+    emoji: :class:`PartialEmoji`
+        The custom or unicode emoji being used.
+    """
+
+    __slots__ = ('message_id', 'user_id', 'channel_id', 'guild_id', 'emoji')
+
+    def __init__(self, data, emoji):
+        self.message_id = int(data['message_id'])
+        self.channel_id = int(data['channel_id'])
+        self.user_id = int(data['user_id'])
+        self.emoji = emoji
+
+        try:
+            self.guild_id = int(data['guild_id'])
+        except KeyError:
+            self.guild_id = None
+
+class RawReactionClearEvent:
+    """Represents the payload for a :func:`on_raw_reaction_clear` event.
+
+    Attributes
+    -----------
+    message_id: :class:`int`
+        The message ID that got its reactions cleared.
+    channel_id: :class:`int`
+        The channel ID where the reactions got cleared.
+    guild_id: Optional[:class:`int`]
+        The guild ID where the reactions got cleared.
+    """
+
+    __slots__ = ('message_id', 'channel_id', 'guild_id')
+
+    def __init__(self, data):
+        self.message_id = int(data['message_id'])
+        self.channel_id = int(data['channel_id'])
+
+        try:
+            self.guild_id = int(data['guild_id'])
+        except KeyError:
+            self.guild_id = None