VP-1558: Added endpoint to get current theme settings as json (#384)

* VP-1558: Added endpoint to get current theme settings as json

* Fix documentation

VirtoCommerce.Storefront/Controllers/AssetController.cs

@@ -5,6 +5,7 @@
 using Microsoft.AspNetCore.Mvc;
 using System.Threading.Tasks;
 using VirtoCommerce.LiquidThemeEngine;
+using VirtoCommerce.Storefront.Common;
 using VirtoCommerce.Storefront.Extensions;
 using VirtoCommerce.Storefront.Infrastructure;
 using VirtoCommerce.Storefront.Model;
@@ -43,6 +44,19 @@ public ActionResult GetThemeLocalizationJson()
             return Json(retVal);
         }
 
+        /// <summary>
+        /// GET: /themes/settings.json
+        /// Return settings for current theme
+        /// </summary>
+        /// <returns></returns>
+        [HttpGet("themes/settings.json")]
+        [ResponseCache(CacheProfileName = "Default")]
+        public ActionResult GetThemeSettingsJson()
+        {
+            var retVal = _themeEngine.GetSettings();
+            return Json(retVal);
+        }
+
         /// <summary>
         /// GET: /themes/assets/{*path}
         /// Handle theme assets requests