add webhook settings

app/controllers/webhook_settings_controller.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+class WebhookSettingsController < ApplicationController
+  def show
+    @encrypted_config =
+      current_account.encrypted_configs.find_or_initialize_by(key: EncryptedConfig::WEBHOOK_URL_KEY)
+  end
+
+  def create
+    @encrypted_config =
+      current_account.encrypted_configs.find_or_initialize_by(key: EncryptedConfig::WEBHOOK_URL_KEY)
+
+    @encrypted_config.update!(encrypted_config_params)
+
+    redirect_back(fallback_location: settings_webhooks_path, notice: 'Webhook URL has been saved.')
+  end
+
+  def update
+    submitter = current_account.submitters.where.not(completed_at: nil).order(:id).last
+
+    SendWebhookRequestJob.perform_later(submitter)
+
+    redirect_back(fallback_location: settings_webhooks_path, notice: 'Webhook request has been sent.')
+  end
+
+  private
+
+  def encrypted_config_params
+    params.require(:encrypted_config).permit(:value)
+  end
+end