From e9ec1df01b752b423b66cb30dc2025a396f769f5 Mon Sep 17 00:00:00 2001
From: Sergey Chebotar <s.chebotar@gmail.com>
Date: Mon, 29 Nov 2021 16:36:04 +0300
Subject: [PATCH] Task chaining

---
 Assistant/SkuAssist.cs | 4 ++--
 Functions.cs           | 7 +++++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/Assistant/SkuAssist.cs b/Assistant/SkuAssist.cs
index a9de2e1..9d90394 100644
--- a/Assistant/SkuAssist.cs
+++ b/Assistant/SkuAssist.cs
@@ -17,12 +17,12 @@ namespace Rehau.Sku.Assist
             return await httpClient.GetStringAsync(uri);
         }
 
-        public async static Task<IDocument> GetDocument(string source)
+        public async static Task<IDocument> GetDocument(Task<string> source)
         {
             IConfiguration config = Configuration.Default;
             IBrowsingContext context = BrowsingContext.New(config);
 
-            return await context.OpenAsync(req => req.Content(source));
+            return await context.OpenAsync(req => req.Content(source.Result));
         }
 
         public static IProduct GetProductFromDocument(IDocument document)
diff --git a/Functions.cs b/Functions.cs
index ab6cedf..9112822 100644
--- a/Functions.cs
+++ b/Functions.cs
@@ -1,4 +1,4 @@
-using System;
+using AngleSharp.Dom;
 using ExcelDna.Integration;
 using System.Net.Http;
 using System.Threading.Tasks;
@@ -12,7 +12,10 @@ namespace Rehau.Sku.Assist
         [ExcelFunction]
         public static async Task<string> RAUNAME(string request)
         {
-            throw new NotImplementedException();
+            Task<string> contentTask = Task.Run(() => SkuAssist.GetContent(request, httpClient));
+            Task<IDocument> documentTask = await contentTask.ContinueWith(content => SkuAssist.GetDocument(content));
+            IProduct product = await documentTask.ContinueWith(doc => SkuAssist.GetProductFromDocument(doc.Result));
+            return product.ToString();
         }
     }
 }
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