[MicroWin] Add automatic configuration settings

functions/public/Invoke-AutoConfigDialog.ps1

@@ -0,0 +1,24 @@
+function Invoke-AutoConfigDialog {
+
+    <#
+
+        .SYNOPSIS
+            Sets the automatic configuration file based on a specified JSON file
+
+    #>
+
+    [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
+    $OFD = New-Object System.Windows.Forms.OpenFileDialog
+    $OFD.Filter = "JSON Files (*.json)|*.json"
+    $OFD.ShowDialog()
+
+    if (($OFD.FileName -eq "") -and ($sync.MicrowinAutoConfigBox.Text -eq ""))
+    {
+        Write-Host "No automatic config file has been selected. Continuing without one..."
+        return
+    }
+    elseif ($OFD.FileName -ne "")
+    {
+        $sync.MicrowinAutoConfigBox.Text = "$($OFD.FileName)"
+    }
+}

functions/public/Invoke-WPFButton.ps1

@@ -57,5 +57,6 @@ function Invoke-WPFButton {
         "WPFMicrowin" {Invoke-WPFMicrowin}
         "WPFCloseButton" {Invoke-WPFCloseButton}
         "MicrowinScratchDirBT" {Invoke-ScratchDialog}
+        "MicrowinAutoConfigBtn" {Invoke-AutoConfigDialog}
     }
 }

functions/public/Invoke-WPFMicrowin.ps1

@@ -178,7 +178,21 @@ public class PowerManagement {
         Write-Host "Removal complete!"
 
         Write-Host "Create unattend.xml"
-        #New-Unattend
+
+        if (($sync.MicrowinAutoConfigBox.Text -ne "") -and (Test-Path "$($sync.MicrowinAutoConfigBox.Text)"))
+        {
+            try
+            {
+                Write-Host "A configuration file has been specified. Copying to WIM file..."
+                Copy-Item "$($sync.MicrowinAutoConfigBox.Text)" "$($scratchDir)\winutil-config.json"
+            }
+            catch
+            {
+                Write-Host "The config file could not be copied. Continuing without it..."
+            }
+        }
+
+        # Create unattended answer file with user information - Check condition to learn more about this functionality
         if ($sync.MicrowinUserName.Text -eq "")
         {
             New-Unattend -userName "User"