Adding support for Slack Markdown "light"

src/Umbraco.Web/HealthCheck/HealthCheckResults.cs

@@ -1,20 +1,22 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using MarkdownSharp;
 using Umbraco.Core.Logging;
 
 namespace Umbraco.Web.HealthCheck
 {
-    public class HealthCheckResults
+    internal class HealthCheckResults
     {
         private readonly Dictionary<string, IEnumerable<HealthCheckStatus>> _results;
 
-        public HealthCheckResults(IEnumerable<HealthCheck> checks)
+        internal HealthCheckResults(IEnumerable<HealthCheck> checks)
         {
             _results = checks.ToDictionary(t => t.Name, t => t.GetStatus());
         }
 
-        public void LogResults()
+        internal void LogResults()
         {
             LogHelper.Info<HealthCheckResults>("Scheduled health check results:");
             foreach (var result in _results)
@@ -38,9 +40,14 @@ namespace Umbraco.Web.HealthCheck
             }
         }
 
-        public string ResultsAsMarkDown()
+        internal string ResultsAsMarkDown(bool slackMarkDown = false)
         {
             var newItem = "- ";
+            if (slackMarkDown)
+            {
+                newItem = "• ";
+            }
+
             var sb = new StringBuilder();
 
             foreach (var result in _results)
@@ -50,19 +57,39 @@ namespace Umbraco.Web.HealthCheck
                 var checkIsSuccess = result.Value.All(x => x.ResultType == StatusResultType.Success);
                 if (checkIsSuccess)
                 {
-                    sb.AppendFormat("{0}Checks for'{1}' all completed succesfully.", newItem, checkName);
+                    sb.AppendFormat("{0}Checks for'{1}' all completed succesfully.{2}", newItem, checkName, Environment.NewLine);
                 }
                 else
                 {
-                    sb.AppendFormat("{0}Checks for'{1}' completed with errors.", newItem, checkName);
+                    sb.AppendFormat("{0}Checks for'{1}' completed with errors.{2}", newItem, checkName, Environment.NewLine);
                 }
 
                 foreach (var checkResult in checkResults)
                 {
-                    sb.AppendFormat("{0}{1}Result:'{2}' , Message: '{3}'", newItem, newItem, checkResult.ResultType, checkResult.Message);
+                    sb.AppendFormat("\t{0}Result:'{1}' , Message: '{2}'{3}", newItem, checkResult.ResultType, SimpleHtmlToMarkDown(checkResult.Message, slackMarkDown), Environment.NewLine);
                 }
             }
             return sb.ToString();
         }
+
+        internal string ResultsAsHtml()
+        {
+            Markdown mark = new Markdown();
+            return mark.Transform(ResultsAsMarkDown());
+        }
+        private string SimpleHtmlToMarkDown(string html, bool slackMarkDown = false)
+        {
+            if (slackMarkDown)
+            {
+                return html.Replace("<strong>", "*")
+                    .Replace("</strong>", "*")
+                    .Replace("<em>", "_")
+                    .Replace("</em>", "_");
+            }
+            return html.Replace("<strong>", "**")
+                .Replace("</strong>", "**")
+                .Replace("<em>", "*")
+                .Replace("</em>", "*");
+        }
     }
 }

src/Umbraco.Web/Scheduling/HealthCheckNotifier.cs

@@ -69,7 +69,7 @@ namespace Umbraco.Web.Scheduling
                     var slackMessage = new SlackMessage
                     {
                         Channel = "#test",
-                        Text = results.ResultsAsMarkDown(),
+                        Text = results.ResultsAsMarkDown(true),
                         IconEmoji = Emoji.Ghost,
                         Username = "Umbraco Health Check Notifier"
                     };