Completes: U4-3230 Combine/Minify manifest files to one request with CDF

src/Umbraco.Web/UI/JavaScript/AssetInitialization.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Linq;
+using System.Web;
+using ClientDependency.Core;
+using ClientDependency.Core.Config;
+using Newtonsoft.Json.Linq;
+
+namespace Umbraco.Web.UI.JavaScript
+{
+    internal abstract class AssetInitialization
+    {
+        /// <summary>
+        /// This will check if we're in release mode, if so it will create a CDF URL to load them all in at once
+        /// </summary>
+        /// <param name="fileRefs"></param>
+        /// <param name="cdfType"></param>
+        /// <returns></returns>
+        protected JArray CheckIfReleaseAndOptimized(JArray fileRefs, ClientDependencyType cdfType)
+        {
+            if (HttpContext.Current != null && HttpContext.Current.IsDebuggingEnabled == false)
+            {
+                return GetOptimized(fileRefs, cdfType);
+            }
+            return fileRefs;
+        }
+
+        /// <summary>
+        /// Return array of optimized URLs
+        /// </summary>
+        /// <param name="fileRefs"></param>
+        /// <param name="cdfType"></param>
+        /// <returns></returns>
+        protected JArray GetOptimized(JArray fileRefs, ClientDependencyType cdfType)
+        {
+            var depenencies = fileRefs.Select(x =>
+                {
+                    var asString = x.ToString();
+                    if (asString.StartsWith("/") == false)
+                    {
+                        if (Uri.IsWellFormedUriString(asString, UriKind.Relative))
+                        {
+                            var absolute = new Uri(HttpContext.Current.Request.Url, asString);
+                            return new BasicFile(cdfType) { FilePath = absolute.AbsolutePath };
+                        }
+                        return null;
+                    }
+                    return new JavascriptFile(asString);
+                }).Where(x => x != null);
+
+            var urls = ClientDependencySettings.Instance.DefaultCompositeFileProcessingProvider.ProcessCompositeList(
+                depenencies,
+                cdfType, 
+                new HttpContextWrapper(HttpContext.Current));
+
+            var result = new JArray();
+            foreach (var u in urls)
+            {
+                result.Add(u);
+            }
+            return result;
+        }
+    }
+}