#===========================================================================
# Assemblies and XAML
#===========================================================================
Add-Type -AssemblyName PresentationFramework, System.Drawing, System.Windows.Forms
[void][System.Reflection.Assembly]::LoadWithPartialName('presentationframework')
[xml]$XAML = @'
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp3"
        Name="window" WindowStyle="None" Width="350" Height="295" Opacity="0.85" AllowsTransparency="True">
        <Window.Resources>
        <Style TargetType="GridViewColumnHeader">
            <Setter Property="Background" Value="Transparent" />
            <Setter Property="Foreground" Value="Transparent"/>
            <Setter Property="BorderBrush" Value="Transparent"/>
            <Setter Property="FontWeight" Value="Bold"/>
            <Setter Property="Opacity" Value="0.5"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="GridViewColumnHeader">
                    <Border Background="Transparent">
                    <ContentPresenter></ContentPresenter>
                    </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        </Window.Resources>
    <Grid Name="grid" Height="418" HorizontalAlignment="Left" VerticalAlignment="Top">
        <Label Name="Title" Content="System Information" HorizontalAlignment="Left" VerticalAlignment="Top" Width="513" Background="#313130" Foreground="White" FontWeight="Bold" FontSize="14" Height="27"/>
       <Label Content="User Name" HorizontalAlignment="Left" Margin="0,27,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="Computer Name" HorizontalAlignment="Left" Margin="0,57,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="Domain" HorizontalAlignment="Left" Margin="0,87,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="IP Address" HorizontalAlignment="Left" Margin="0,117,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="Connection Type" HorizontalAlignment="Left" Margin="0,147,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="Operating System Name" HorizontalAlignment="Left" Margin="0,177,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="Operating System Version" HorizontalAlignment="Left" Margin="0,207,0,0" VerticalAlignment="Top" Height="30" Width="170" Background="#313130" Foreground="White"/>
        <Label Content="Free Space" HorizontalAlignment="Left" Margin="0,237,0,0" Width="170" Background="#313130" Foreground="White" Height="30" VerticalAlignment="Top"/>
        <Label Content="Last Boot Time" HorizontalAlignment="Left" Margin="0,267,0,0" Width="170" Background="#313130" Foreground="White" Height="30" VerticalAlignment="Top"/>
        <TextBox Name="txtUserName" Height="30" Margin="170,27,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" IsEnabled="True" AllowDrop="True" BorderThickness="0.5" HorizontalAlignment="Left" Width="343"/>
        <TextBox Name="txtHostName" Height="30" Margin="170,57,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" IsEnabled="True" AllowDrop="True" BorderThickness="0.5" HorizontalAlignment="Left" Width="343"/>
        <TextBox Name="txtDomain" Height="30" Margin="170,87,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" IsEnabled="True" AllowDrop="True" BorderThickness="0.5" HorizontalAlignment="Left" Width="343"/>
        <TextBox Name="txtWindowsIP" HorizontalAlignment="Left" Height="30" Margin="170,117,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="343" IsEnabled="True" BorderThickness="0.5"/>
        <TextBox Name="txtConnectionType" HorizontalAlignment="Left" Height="30" Margin="170,147,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="343" IsEnabled="True" BorderThickness="0.5"/>
        <TextBox Name="txtOSName" HorizontalAlignment="Left" Height="30" Margin="170,177,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="343" IsEnabled="True" BorderThickness="0.5"/>
        <TextBox Name="txtOSVersion" HorizontalAlignment="Left" Height="30" Margin="170,207,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="343" IsEnabled="True" BorderThickness="0.5"/>
        <TextBox Name="txtSystemFree" HorizontalAlignment="Left" Height="30" Margin="170,237,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="343" IsEnabled="True" BorderThickness="0.5"/>
        <TextBox Name="txtLastBoot" HorizontalAlignment="Left" Height="30" Margin="170,267,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="343" IsEnabled="True" BorderThickness="0.5"/>
            <ListView Name="listview" SelectionMode="Single" Foreground="White" Background="Transparent" BorderBrush="Transparent" IsHitTestVisible="False">
                <ListView.ItemContainerStyle>
                    <Style>
                        <Setter Property="Control.HorizontalContentAlignment" Value="Stretch"/>
                        <Setter Property="Control.VerticalContentAlignment" Value="Stretch"/>
                    </Style>
                </ListView.ItemContainerStyle>
            </ListView>
    </Grid>
</Window>
'@

#===========================================================================
#Read XAML
#===========================================================================
$reader=(New-Object System.Xml.XmlNodeReader $xaml)
try{$Form=[Windows.Markup.XamlReader]::Load( $reader )}
catch{Write-Host "Unable to load Windows.Markup.XamlReader. Some possible causes for this problem include: .NET Framework is missing PowerShell must be launched with PowerShell -sta, invalid XAML code was encountered."; exit}

#===========================================================================
# Store Form Objects In PowerShell
#===========================================================================
$xaml.SelectNodes("//*[@Name]") | %{Set-Variable -Name ($_.Name) -Value $Form.FindName($_.Name)}

Function RefreshData{
#===========================================================================
# Stores WMI values in WMI Object from System Classes
#===========================================================================
$user = @()
$oWMIOS = @()
$oWMICS = @()
$oWMIHD = @()
$oWMINIC = @()
$connectionType = @()
$lastBoot = @()
$user = ((Get-WmiObject -Class Win32_Process -Filter 'Name="explorer.exe"').GetOwner().User)
$oWMIOS = Get-WmiObject win32_OperatingSystem
$oWMICS = Get-WmiObject -Class Win32_ComputerSystem
$oWMIHD = Get-WmiObject Win32_Volume -Filter "DriveType='3'"
$oWMINIC = (@(@(Get-WmiObject Win32_NetworkAdapterConfiguration | Select-Object -ExpandProperty IPAddress) -notlike "*:*")[0])
$connectionType = (Get-WmiObject Win32_NetworkAdapter -filter ("NetConnectionStatus = 2") | Where-Object {$_.NetConnectionID -notLike 'VMware*'} | Select -ExpandProperty NetConnectionID)
$lastBoot = (Get-CimInstance -ClassName Win32_OperatingSystem | Select -Exp LastBootUpTime)

#===========================================================================
# Calculate Disk Space
#===========================================================================
foreach ($disk in ($oWMIHD | Sort-Object -Property Name)) {
$disks = @()
    if (!$disk.name.StartsWith("\\")) {
              $disks += [PSCustomObject]@{
                     Free = "$([Math]::Round($disk.FreeSpace /1GB,1)) GB"
              }
       }
}

#===========================================================================
# Links WMI Object Values to XAML Form Fields
#===========================================================================
$txtUserName.Text = $user

$txtHostName.Text = $oWMIOS.PSComputerName

#Displays Domain
$domain = $oWMICS.Domain
$txtDomain.Text = $domain

#Displays IP Address
$txtWindowsIP.Text = $oWMINIC

#Displays connection type
$txtConnectionType.Text = $connectionType

#Formats and displays OS name
$aOSName = $oWMIOS.name.Split("|")
$txtOSName.Text = $aOSName[0]

#Displays OS version
$txtOSVersion.Text = $oWMIOS.Version

#Displays System Drive
$txtSystemFree.Text = $disks.Free

#Displays Last Boot Up
$txtLastBoot.Text = $lastBoot

Return $user, $oWMIOS.PSComputerName, $domain, $oWMINIC, $connectionType, $aOSName[0], $oWMIOS.Version, $disks.Free, $lastBoot
}

#===========================================================================
# Build Tray Icon UevAppMonitor.exe
#===========================================================================
$icon = [System.Drawing.Icon]::ExtractAssociatedIcon("C:\Windows\System32\UevAppMonitor.exe")

# Populate ListView with PS Object data and set width
$listview.ItemsSource = $disks
$listview.Width = $grid.width*.9

# Create GridView object to add to ListView
$gridview = New-Object System.Windows.Controls.GridView

# Dynamically add columns to GridView, then bind data to columns
foreach ($column in $columnorder) {
    $gridcolumn = New-Object System.Windows.Controls.GridViewColumn
    $gridcolumn.Header = $column
    $gridcolumn.Width = $grid.width*.20
    $gridbinding = New-Object System.Windows.Data.Binding $column
    $gridcolumn.DisplayMemberBinding = $gridbinding
    $gridview.AddChild($gridcolumn)
}

# Add GridView to ListView
$listview.View = $gridview

# Create notifyicon
$notifyicon = New-Object System.Windows.Forms.NotifyIcon
$notifyicon.Text = "System Information"
$notifyicon.Icon = $icon
$notifyicon.Visible = $true

$returnData = RefreshData

$Menu_User = New-Object System.Windows.Forms.MenuItem
$Menu_User.Text = "Copy User Name"

$Menu_Computer = New-Object System.Windows.Forms.MenuItem
$Menu_Computer.Text = "Copy Computer Name"

$Menu_Domain = New-Object System.Windows.Forms.MenuItem
$Menu_Domain.Text = "Copy Domain"

$Menu_Ip = New-Object System.Windows.Forms.MenuItem
$Menu_Ip.Text = "Copy IP Address"

$Menu_ConnectionType = New-Object System.Windows.Forms.MenuItem
$Menu_ConnectionType.Text = "Copy Connection Type"

$Menu_OperatingSystem = New-Object System.Windows.Forms.MenuItem
$Menu_OperatingSystem.Text = "Copy Operating System"

$Menu_OSVersion = New-Object System.Windows.Forms.MenuItem
$Menu_OSVersion.Text = "Copy OS Version"

$Menu_FreeDisk = New-Object System.Windows.Forms.MenuItem
$Menu_FreeDisk.Text = "Copy Free Space"

$Menu_LastBoot = New-Object System.Windows.Forms.MenuItem
$Menu_LastBoot.Text = "Copy Last Boot Up Time"

$Menu_CopyAll = New-Object System.Windows.Forms.MenuItem
$Menu_CopyAll.Text = "Copy All Information"

# ---------------------------------------------------------------------
# Create context menu and add items to the menu
# ---------------------------------------------------------------------
$notifyicon.contextMenu = New-Object System.Windows.Forms.ContextMenu
$notifyicon.contextMenu.MenuItems.AddRange($Menu_User)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_Computer)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_Domain)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_Ip)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_ConnectionType)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_OperatingSystem)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_OSVersion)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_FreeDisk)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_LastBoot)
$notifyicon.contextMenu.MenuItems.AddRange($Menu_CopyAll)

# ---------------------------------------------------------------------
# Actions after clicking menu items
# ---------------------------------------------------------------------
$Menu_User.Add_Click({
    ("User Name: " + ($returnData[0])) | Set-Clipboard
})

$Menu_Computer.Add_Click({
    ("Computer Name: " + ($returnData[1])) | Set-Clipboard
})

$Menu_Domain.Add_Click({
    ("Domain: " + ($returnData[2])) | Set-Clipboard
})

$Menu_Ip.Add_Click({
    ("IP Address: " + ($returnData[3])) | Set-Clipboard
})

$Menu_ConnectionType.Add_Click({
    ("Connection Type: " + ($returnData[4])) | Set-Clipboard
})

$Menu_OperatingSystem.Add_Click({
    ("Operating System: " + ($returnData[5])) | Set-Clipboard
})

$Menu_OSVersion.Add_Click({
    ("Operating System Version: " + ($returnData[6])) | Set-Clipboard
})

$Menu_FreeDisk.Add_Click({
    ("Free Space: " + ($returnData[7])) | Set-Clipboard
})

$Menu_LastBoot.Add_Click({
    ("Last Boot Time: " + ($returnData[8])) | Set-Clipboard
})

$sysInfo = @(
    ("User Name: " + ($returnData[0])),
    ("Computer Name: " + ($returnData[1])),
    ("Domain: " + ($returnData[2])),
    ("IP Address: " + ($returnData[3])),
    ("Connection Type: " + ($returnData[4])),
    ("Operating System: " + ($returnData[5])),
    ("Operating System Version: " + ($returnData[6])),
    ("Free Space: " + ($returnData[7])),
    ("Last Boot Time: " + ($returnData[8]))

)

$Menu_CopyAll.Add_Click({
    ($sysInfo) | Set-Clipboard
})



# Add a left click that makes the Window appear in the lower right part of the screen, above the notify icon.
$notifyicon.add_Click({
    if ($_.Button -eq [Windows.Forms.MouseButtons]::Left) {
            # reposition each time, in case the resolution or monitor changes
        $window.Left = $([System.Windows.SystemParameters]::WorkArea.Width-$window.Width)
            $window.Top = $([System.Windows.SystemParameters]::WorkArea.Height-$window.Height)
            $window.Show()
            $window.Activate()
            RefreshData
    }
})

# Close the window if it's double clicked
$window.Add_MouseDoubleClick({
    RefreshData
})

#Close the window if it loses focus
$window.Add_Deactivated({
    $window.Hide()
})

# Make PowerShell Disappear
$windowcode = '[DllImport("user32.dll")] public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);'
$asyncwindow = Add-Type -MemberDefinition $windowcode -name Win32ShowWindowAsync -namespace Win32Functions -PassThru
$null = $asyncwindow::ShowWindowAsync((Get-Process -PID $pid).MainWindowHandle, 0)

#Force garbage collection just to start slightly lower RAM usage.
[System.GC]::Collect()

# Create an application context for it to all run within.
# This helps with responsiveness, especially when clicking Exit.
$appContext = New-Object System.Windows.Forms.ApplicationContext
[void][System.Windows.Forms.Application]::Run($appContext)