Added a property to check if winget is a preview version or not

Author: basicx-StrgV

src/WGet.NET/Components/WinGet.cs

@@ -34,6 +34,7 @@ public class WinGet
         private DateTime _wingetExeModificationDate;
         private string _versionString;
         private Version _version;
+        private bool _isPreview;
 
         private readonly bool _administratorPrivileges;
 
@@ -61,6 +62,27 @@ public bool IsInstalled
             }
         }
 
+        /// <summary>
+        /// Gets if the version of winget is a preview version.
+        /// </summary>
+        /// <returns>
+        /// <see langword="true"/> if the winget version is a preview version or <see langword="false"/> if not.
+        /// </returns>
+        public bool IsPreview
+        {
+            get
+            {
+                // Check if winget got modefied or removed while the application is running.
+                if (_wingetExeModificationDate != GetLastModificationData())
+                {
+                    // Re-query installation if a change was detected.
+                    QueryInstallation();
+                }
+
+                return _isPreview;
+            }
+        }
+
         /// <summary>
         /// Gets the version number of the winget installation.
         /// </summary>
@@ -919,6 +941,8 @@ private bool QueryInstallation()
 
             _version = VersionParser.Parse(_versionString);
 
+            _isPreview = VersionParser.CheckPreviewStatus(_versionString);
+
             return isInstalled;
         }
 

src/WGet.NET/Parser/VersionParser.cs

@@ -12,6 +12,29 @@ namespace WGetNET.Parser
     /// </summary>
     internal static class VersionParser
     {
+        /// <summary>
+        /// Checks is the version <see cref="string"/> is a preview version.
+        /// </summary>
+        /// <param name="input">The <see cref="string"/> to check.</param>
+        /// <returns>
+        /// <see langword="true"/> if the winget version is a preview version or <see langword="false"/> if not.
+        /// </returns>
+        public static bool CheckPreviewStatus(string input)
+        {
+            if (string.IsNullOrWhiteSpace(input) || input.Length < 7)
+            {
+                // Return if the string is null, empty or to short for a preview version
+                return false;
+            }
+
+            if (input.EndsWith("PREVIEW", StringComparison.OrdinalIgnoreCase))
+            {
+                return true;
+            }
+
+            return false;
+        }
+
         /// <summary>
         /// Parses a <see cref="string"/> to a <see cref="Version"/> instance as best as possible.
         /// </summary>

src/WGet.NET/XmlDocumentation/WGet.NET.xml

@@ -27,7 +27,8 @@ private void Run()
                 WinGetSourceManager sourceManager = new WinGetSourceManager();
                 WinGet winget = new WinGet();
                 Console.WriteLine("Winget Installed: " + winget.IsInstalled +
-                                    "\nWinget Version: " + winget.VersionString + "\n");
+                                    "\nWinget Version: " + winget.VersionString +
+                                    "\nIs Preview: " + winget.IsPreview + "\n");
 
                 Version winGetVersionObject = connector.Version;
 

src/WGetTest/Program.cs

@@ -27,7 +27,8 @@ private void Run()
                 WinGetSourceManager sourceManager = new WinGetSourceManager();
                 WinGet winget = new WinGet();
                 Console.WriteLine("Winget Installed: " + winget.IsInstalled +
-                                    "\nWinget Version: " + winget.VersionString + "\n");
+                                    "\nWinget Version: " + winget.VersionString +
+                                    "\nIs Preview: " + winget.IsPreview + "\n");
 
                 Version winGetVersionObject = connector.Version;