Added TurboStreamable concern

app/controllers/concerns/turbo_streamable.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+module TurboStreamable
+  extend ActiveSupport::Concern
+
+  included do |controller|
+    around_action :handle_error, only: controller.respond_to?(:turbo_stream_actions) ? controller.turbo_stream_actions : []
+  end
+
+  def render_toast(message, success = true)
+    turbo_stream.append("toasts", partial: "shared/toast", locals: { message:, success: })
+  end
+
+  class_methods do
+    def render_toast = render_toast
+  end
+
+  private
+
+  def handle_error
+    yield
+  rescue Errors::Base => e
+    render_error I18n.t(e.locale_tag)
+  rescue KeyError, ActionController::ParameterMissing => e
+    render_error t("errors.parameter_error", parameter: e.is_a?(KeyError) ? e.key : e.param.capitalize)
+  rescue Dry::Types::CoercionError, Dry::Types::ConstraintError
+    render_error t("errors.invalid_parameter")
+  rescue ActiveRecord::RecordNotFound
+    render_error t("errors.record_not_found")
+  end
+
+  def render_error(message)
+    respond_to do |format|
+      format.turbo_stream do
+        render turbo_stream: render_toast(message, false)
+      end
+    end
+  end
+end

app/views/layouts/base.html.haml

@@ -31,6 +31,7 @@
     = render 'shared/announcements'
     = yield
     = render "shared/formatting"
+    #toasts.d-none
     - if Rails.env.development?
       #debug
         %hr

app/views/shared/_toast.html.haml

@@ -0,0 +1 @@
+.d-none{ data: { controller: "toast", toast_message_value: message, toast_success_value: success } }