Fix issue with spaces in pymusiclooper and update on validation

Author: MattEqualsCoder

MSUScripter/MSUScripter.csproj

@@ -8,7 +8,7 @@
         <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
         <ApplicationIcon>MSUScripterIcon.ico</ApplicationIcon>
         <PackageIcon>MSUScripterIcon.ico</PackageIcon>
-        <Version>4.2.0</Version>
+        <Version>4.2.1-beta.1</Version>
         <RuntimeFrameworkVersion>8.0.0</RuntimeFrameworkVersion>
         <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>
         <LangVersion>12</LangVersion>

MSUScripter/Services/ControlServices/PyMusicLooperPanelService.cs

@@ -145,7 +145,7 @@ private void FilterResults()
 
     public void TestPyMusicLooper()
     {
-        if (!pyMusicLooperService.TestService(out string message, false))
+        if (!pyMusicLooperService.TestService(out string message))
         {
             _model.Message = message;
             _model.DisplayGitHubLink = true;

MSUScripter/Services/ControlServices/SettingsWindowService.cs

@@ -31,6 +31,6 @@ public bool ValidateMsuPcm()
 
     public bool ValidatePyMusicLooper()
     {
-        return pyMusicLooperService.TestService(out _, true);
+        return pyMusicLooperService.TestService(out _, _model.PyMusicLooperPath);
     }
 }

MSUScripter/Services/PyMusicLooperService.cs

@@ -76,7 +76,7 @@ public void ClearCache()
 
         if (!_hasValidated)
         {
-            if (!TestService(out message, false))
+            if (!TestService(out message))
             {
                 IsRunning = false;
                 return null;
@@ -133,15 +133,20 @@ public void ClearCache()
         return loopPoints;
     }
 
-    public bool TestService(out string message, bool force)
+    public bool TestService(out string message, string? testPath = null)
     {
-        if (_hasValidated && !force)
+        if (_hasValidated && testPath == null)
         {
             message = "";
             return true;
         }
 
-        if (!string.IsNullOrEmpty(_settings.PyMusicLooperPath) && File.Exists(_settings.PyMusicLooperPath))
+        if (testPath != null)
+        {
+            _settings.PyMusicLooperPath = testPath;
+            _pyMusicLooperCommand = string.Empty == testPath ? "pymusiclooper" : testPath;
+        }
+        else if (!string.IsNullOrEmpty(_settings.PyMusicLooperPath) && File.Exists(_settings.PyMusicLooperPath))
         {
             _pyMusicLooperCommand = _settings.PyMusicLooperPath;
         }

MSUScripter/Services/PythonCommandRunnerService.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.IO;
 using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading;
@@ -108,12 +109,24 @@ private bool RunInternal(string command, string arguments, out string result, ou
 
             if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
             {
+                var workingDirectory = "";
+                if (System.IO.File.Exists(command))
+                {
+                    workingDirectory = Directory.GetParent(command)?.FullName;
+                    if (!string.IsNullOrEmpty(workingDirectory))
+                    {
+                        var file = Path.GetFileName(command);
+                        innerCommand = $"{file} {arguments}";
+                    }
+                }
+                
                 procStartInfo= new ProcessStartInfo("cmd", "/c " + innerCommand)
                 {
                     RedirectStandardOutput = redirectOutput,
                     RedirectStandardError = redirectOutput,
                     UseShellExecute = false,
-                    CreateNoWindow = true
+                    CreateNoWindow = true,
+                    WorkingDirectory = workingDirectory
                 };
             }
             else