FF-2048: Set thumbnail element

BasicNodes/Functions/SetFileFlowsThumbnail.cs

@@ -0,0 +1,43 @@
+using FileFlows.Plugin;
+using FileFlows.Plugin.Attributes;
+
+namespace FileFlows.BasicNodes.Functions;
+
+
+/// <summary>
+/// Flow element that sets the thumbnail of a file in FileFlows
+/// </summary>
+public class SetFileFlowsThumbnail: Node
+{
+    /// <inheritdoc />
+    public override int Inputs => 1;
+    /// <inheritdoc />
+    public override int Outputs => 1;
+    /// <inheritdoc />
+    public override string Icon => "fas fa-image";
+    /// <inheritdoc />
+    public override FlowElementType Type => FlowElementType.Process;
+    /// <inheritdoc />
+    public override string HelpUrl => "https://fileflows.com/docs/plugins/basic-nodes/set-fileflows-thumbnail";
+    
+    /// <summary>
+    /// Gets or sets the name of the file of the thumbnail
+    /// </summary>
+    [TextVariable(1)]
+    public string FilePath { get; set; }
+
+    /// <inheritdoc />
+    public override int Execute(NodeParameters args)
+    {
+        string file = args.ReplaceVariables(FilePath ?? string.Empty, true)?.EmptyAsNull() ?? args.WorkingFile;
+        if(string.IsNullOrWhiteSpace(file))
+            return args.Fail("File Path not set");
+        var localResult = args.FileService.GetLocalPath(file);
+        if(localResult.Failed(out var error))
+            return args.Fail("Failed to get local path: " + error);
+        var local = localResult.Value;
+        args.SetThumbnail(file);
+        args.Logger.ILog("Thumbnail set");
+        return 1;
+    }
+}