FF-420 - added fail flow

BasicNodes/BasicNodes.en.json

@@ -109,6 +109,9 @@
             "FileName-Help": "If left blank the current working file will be deleted, or folder if library is folder based."
           }
         },
+        "FailFlow": {
+          "Description": "Fails a flow immediately, useful if you want a certain path to just fail."
+        },
         "FileSize": {
           "Description": "Checks if the file size matches the configured parameters. The values are in megabytes.\n\nOutput 1: Matches\nOutput 2: Does not match",
           "Outputs": {

BasicNodes/Functions/FailFlow.cs

@@ -0,0 +1,37 @@
+using FileFlows.Plugin;
+
+namespace FileFlows.BasicNodes.Functions;
+
+/// <summary>
+/// A node that simply fails a flow
+/// </summary>
+public class FailFlow : Node
+{
+    /// <summary>
+    /// Gets the number of input nodes
+    /// </summary>
+    public override int Inputs => 1;
+    /// <summary>
+    /// Gets the type of node
+    /// </summary>
+    public override FlowElementType Type => FlowElementType.Logic;
+    /// <summary>
+    /// Gets the icon of the flow
+    /// </summary>
+    public override string Icon => "fas fa-exclamation-triangle";
+    /// <summary>
+    /// Gets the URL for the help page
+    /// </summary>
+    public override string HelpUrl => "https://docs.fileflows.com/plugins/basic-nodes/fail-flow";
+
+    /// <summary>
+    /// Executes the node
+    /// </summary>
+    /// <param name="args">the node parameters</param>
+    /// <returns>-1 to indicate the flow should fail</returns>
+    public override int Execute(NodeParameters args)
+    {
+        args.Logger.ILog("Failing flow");
+        return -1;
+    }
+}