Import feature for following/blocking lists (addresses #62, #177, #201, #454)

app/controllers/settings/imports_controller.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+class Settings::ImportsController < ApplicationController
+  layout 'admin'
+
+  before_action :authenticate_user!
+  before_action :set_account
+
+  def show
+    @import = Import.new
+  end
+
+  def create
+    @import = Import.new(import_params)
+    @import.account = @account
+
+    if @import.save
+      ImportWorker.perform_async(@import.id)
+      redirect_to settings_import_path, notice: I18n.t('imports.success')
+    else
+      render action: :show
+    end
+  end
+
+  private
+
+  def set_account
+    @account = current_user.account
+  end
+
+  def import_params
+    params.require(:import).permit(:data, :type)
+  end
+end