Implement power_level_content_override for client room creation

lib/architex_web/api_schemas/client/request/create_room.ex

@@ -8,7 +8,25 @@ defmodule ArchitexWeb.Client.Request.CreateRoom do
           topic: String.t() | nil,
           invite: list(String.t()) | nil,
           room_version: String.t() | nil,
-          preset: String.t() | nil
+          preset: String.t() | nil,
+          power_level_content_override: plco_t() | nil
+        }
+
+  @type plco_t :: %__MODULE__.PowerLevelContentOverride{
+          ban: integer() | nil,
+          events: %{optional(String.t()) => integer()} | nil,
+          events_default: integer() | nil,
+          invite: integer() | nil,
+          kick: integer() | nil,
+          redact: integer() | nil,
+          state_default: integer() | nil,
+          users: %{optional(String.t()) => integer()} | nil,
+          users_default: integer() | nil,
+          notifications: plco_n_t() | nil
+        }
+
+  @type plco_n_t :: %__MODULE__.PowerLevelContentOverride.Notifications{
+          room: integer() | nil
         }
 
   @primary_key false
@@ -20,9 +38,25 @@ defmodule ArchitexWeb.Client.Request.CreateRoom do
     field :invite, {:array, :string}
     field :room_version, :string
     field :preset, :string
+
+    embeds_one :power_level_content_override, PowerLevelContentOverride, primary_key: false do
+      field :ban, :integer
+      field :events, {:map, :integer}
+      field :events_default, :integer
+      field :invite, :integer
+      field :kick, :integer
+      field :redact, :integer
+      field :state_default, :integer
+      field :users, {:map, :integer}
+      field :users_default, :integer
+
+      embeds_one :notifications, Notifications, primary_key: false do
+        field :room, :integer
+      end
+    end
+
     # TODO: unimplemented:
-    # creation_content, initial_state, invite_3pid, initial_state,
-    # is_direct, power_level_content_override
+    # creation_content, initial_state, invite_3pid, initial_state, is_direct
   end
 
   def changeset(data, params) do
@@ -36,6 +70,33 @@ defmodule ArchitexWeb.Client.Request.CreateRoom do
       :room_version,
       :preset
     ])
+    |> cast_embed(:power_level_content_override,
+      with: &power_level_content_override_changeset/2,
+      required: false
+    )
     |> validate_inclusion(:preset, ["private_chat", "public_chat", "trusted_private_chat"])
   end
+
+  def power_level_content_override_changeset(data, params) do
+    data
+    |> cast(params, [
+      :ban,
+      :events,
+      :events_default,
+      :invite,
+      :kick,
+      :redact,
+      :state_default,
+      :users,
+      :users_default
+    ])
+    |> cast_embed(:notifications,
+      with: &power_level_content_override_notifications_changeset/2,
+      required: false
+    )
+  end
+
+  def power_level_content_override_notifications_changeset(data, params) do
+    cast(data, params, [:room])
+  end
 end