(interactions): Basic support for modals.

bot/meta/interactions/interactions.py

@@ -9,11 +9,23 @@ class Interaction:
         '_state'
     )
 
-    async def callback_deferred(self):
-        return await self._state.http.interaction_callback(self.id, self.token, InteractionCallback.DEFERRED_UPDATE_MESSAGE)
+    async def response_deferred(self):
+        return await self._state.http.interaction_callback(
+            self.id,
+            self.token,
+            InteractionCallback.DEFERRED_UPDATE_MESSAGE
+        )
+
+    async def response_modal(self, modal):
+        return await self._state.http.interaction_callback(
+            self.id,
+            self.token,
+            InteractionCallback.MODAL,
+            modal.to_dict()
+        )
 
     def ack(self):
-        asyncio.create_task(self.callback_deferred())
+        asyncio.create_task(self.response_deferred())
 
 
 class ComponentInteraction(Interaction):
@@ -51,6 +63,44 @@ class Selection(ComponentInteraction):
         self.values = data['data']['values']
 
 
+class ModalResponse(Interaction):
+    __slots__ = (
+        'message',
+        'user',
+        '_state'
+        'id',
+        'token',
+        'application_id',
+        'custom_id',
+        'values'
+    )
+
+    interaction_type = InteractionType.MODAL_SUBMIT
+
+    def __init__(self, message, user, data, state):
+        self.message = message
+        self.user = user
+
+        self._state = state
+
+        self._from_data(data)
+
+    def _from_data(self, data):
+        self.id = data['id']
+        self.token = data['token']
+        self.application_id = data['application_id']
+
+        component_data = data['data']
+
+        self.custom_id = component_data.get('custom_id', None)
+
+        values = {}
+        for row in component_data['components']:
+            for component in row['components']:
+                values[component['custom_id']] = component['value']
+        self.values = values
+
+
 def _component_interaction_factory(data):
     component_type = data['data']['component_type']