Return ticket IDs and resolve external links

F4SD-Cockpit-ServerCore/DataHistoryCollectorM42Wpm.cs

@@ -1574,6 +1574,49 @@ namespace C4IT.DataHistoryProvider
             return null;
         }
 
+        public async Task<cTicketExternalLinkResult> GetTicketExternalLinkAsync(Guid ticketId, enumTicketExternalOpenMode mode, cF4sdWebRequestInfo requestInfo, int logDeep, CancellationToken token)
+        {
+            var result = new cTicketExternalLinkResult
+            {
+                Success = false,
+                Mode = enumTicketExternalOpenMode.None
+            };
+
+            if (ticketId == Guid.Empty || mode == enumTicketExternalOpenMode.None)
+                return result;
+
+            var ticketDetails = await GetTicketMainTableAsync(ticketId, requestInfo, logDeep + 1, token);
+            var ticketTable = ticketDetails?.FirstOrDefault();
+            if (ticketTable?.Columns == null)
+                return result;
+
+            string previewUrl = null;
+            if (ticketTable.Columns.TryGetValue("DirectLinkPreview", out var previewColumn))
+                previewUrl = previewColumn.Values?.FirstOrDefault()?.ToString();
+
+            var resolvedMode = mode;
+            var url = previewUrl;
+            if (mode == enumTicketExternalOpenMode.Edit)
+            {
+                string editUrl = null;
+                if (ticketTable.Columns.TryGetValue("DirectLinkEdit", out var editColumn))
+                    editUrl = editColumn.Values?.FirstOrDefault()?.ToString();
+
+                if (!string.IsNullOrWhiteSpace(editUrl))
+                    url = editUrl;
+                else
+                    resolvedMode = enumTicketExternalOpenMode.Preview;
+            }
+
+            if (string.IsNullOrWhiteSpace(url))
+                return result;
+
+            result.Success = true;
+            result.Url = url;
+            result.Mode = resolvedMode;
+            return result;
+        }
+
         private object ConvertToF4sdType(object objVal, enumFasdValueType ValueType)
         {
             try