Add a warning about the Python App Execution Alias (address #3522)

Author: mrixner

src/UniGetUI/Pages/SettingsPages/ManagersPages/PackageManager.xaml

@@ -115,6 +115,24 @@
                         TextWrapping="Wrap" />
                 </controls:SettingsCard.Description>
             </controls:SettingsCard>
+
+            <controls:SettingsCard
+                x:Name="AppExecutionAliasWarning"
+                BorderThickness="1,0,1,1"
+                CornerRadius="0,0,8,8"
+                IsClickEnabled="False">
+                <controls:SettingsCard.HeaderIcon>
+                    <widgets:LocalIcon Icon="Settings" />
+                </controls:SettingsCard.HeaderIcon>
+
+                <controls:SettingsCard.Description>
+                    <TextBlock
+                        x:Name="AppExecutionAliasWarningLabel"
+                        FontFamily="Consolas"
+                        FontSize="14"
+                        TextWrapping="Wrap" />
+                </controls:SettingsCard.Description>
+            </controls:SettingsCard>
         </StackPanel>
     </ScrollViewer>
 </Page>

src/UniGetUI/Pages/SettingsPages/ManagersPages/PackageManager.xaml.cs

@@ -239,6 +239,7 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
                 };
                 ExtraControls.Children.Add(Scoop_CleanupOnStart);
             }
+
             // ----------------------------- CHOCO EXTRA SETTINGS ------------------------------
 
             else if (Manager is Chocolatey)
@@ -345,7 +346,18 @@ protected override void OnNavigatedTo(NavigationEventArgs e)
                 ExtraControls.Children.Add(DisableNotifsCard);
             }
 
-                base.OnNavigatedTo(e);
+            // Hide the AppExecutionAliasWarning element if Manager is not Pip
+            if (Manager is Pip)
+            {
+                ManagerLogs.CornerRadius = new CornerRadius(8, 8, 0, 0);
+                AppExecutionAliasWarningLabel.Text = "If Python cannot be found but is installed on the system, you may need to disable the \"python.exe\" App Execution Alias in the settings.";
+            }
+            else
+            {
+                AppExecutionAliasWarning.Visibility = Visibility.Collapsed;
+            }
+
+            base.OnNavigatedTo(e);
         }
 
         private void ShowVersionHyperlink_Click(object sender, RoutedEventArgs e)