<# This form was created using POSHGUI.com  a free online gui designer for PowerShell
.NAME
    Untitled
#>

Add-Type -AssemblyName System.Windows.Forms
[System.Windows.Forms.Application]::EnableVisualStyles()

$Form                            = New-Object system.Windows.Forms.Form
$Form.ClientSize                 = '400,400'
$Form.text                       = "Leaver Automation Tool"
$Form.TopMost                    = $false

$Form.KeyPreview = $True
$Form.Add_KeyDown({if ($_.KeyCode -eq "Enter")
    {$TextBox1.Text;$Button1.Click}})
$Form.Add_KeyDown({if ($_.KeyCode -eq "Escape")
    {$Form.Close()}})


$TextBox1                        = New-Object system.Windows.Forms.TextBox
$TextBox1.multiline              = $false
$TextBox1.width                  = 100
$TextBox1.height                 = 20
$TextBox1.location               = New-Object System.Drawing.Point(47,26)
$TextBox1.Font                   = 'Microsoft Sans Serif,10'
$Form.Controls.Add($TextBox1)

$Reference                       = New-Object system.Windows.Forms.TextBox
$Reference.multiline             = $false
$Reference.width                 = 100
$Reference.height                = 20
$Reference.location              = New-Object System.Drawing.Point(284,27)
$Reference.Font                  = 'Microsoft Sans Serif,10'


$Button1                         = New-Object system.Windows.Forms.Button
$Button1.text                    = "Get Name"
$Button1.width                   = 80
$Button1.height                  = 40
$Button1.location                = New-Object System.Drawing.Point(184,17)
$Button1.Font                    = 'Microsoft Sans Serif,10'
$Button1.Add_Click({
$Nameofuser.Text = GetUsername})
$Form.controls.Add($Button1)


$Nameofuser                      = New-Object system.Windows.Forms.TextBox
$Nameofuser.multiline            = $false
$Nameofuser.width                = 328
$Nameofuser.height               = 20
$Nameofuser.location             = New-Object System.Drawing.Point(32,160)
$Nameofuser.Font                 = 'Microsoft Sans Serif,10'

$DoLeaver                        = New-Object system.Windows.Forms.Button
$DoLeaver.text                   = "Process Leaver"
$DoLeaver.width                  = 224
$DoLeaver.height                 = 127
$DoLeaver.location               = New-Object System.Drawing.Point(81,222)
$DoLeaver.Font                   = 'Microsoft Sans Serif,16,style=Bold'
$DoLeaver.Add_Click({
ProcessLeaver;$Form.Close()})
$Form.controls.Add($DoLeaver)

$ULabel                          = New-Object system.Windows.Forms.Label
$ULabel.text                     = "Username"
$ULabel.AutoSize                 = $true
$ULabel.width                    = 25
$ULabel.height                   = 10
$ULabel.location                 = New-Object System.Drawing.Point(55,7)
$ULabel.Font                     = 'Microsoft Sans Serif,10'

$CLabel                          = New-Object system.Windows.Forms.Label
$CLabel.text                     = "Leaver Call Reference"
$CLabel.AutoSize                 = $true
$CLabel.width                    = 25
$CLabel.height                   = 10
$CLabel.location                 = New-Object System.Drawing.Point(273,7)
$CLabel.Font                     = 'Microsoft Sans Serif,10'


$Form.controls.AddRange(@($TextBox1,$Button1,$Nameofuser,$DoLeaver,$Reference,$ULabel,$CLabel))



#Write your logic code here


Function GetUsername
{

    Get-ADUser -Identity $TextBox1.Text -Properties Name | Select Name
}

Function ProcessLeaver{
# Function to generate random password and assign to $NewPassword
Function Random-Password ($length = 12)
{
    $punc = 46..46
    $digits = 48..57
    $letters = 65..90 + 97..122
    $password = get-random -count $length `
        -input ($punc + $digits + $letters) |
            % -begin { $aa = $null } `
            -process {$aa += [char]$_} `
            -end {$aa}
    return $password
}
$NewPassword = Random-Password


# Reset password
$CurrentUser = Get-ADUser $TextBox1.Text -Properties distinguishedName,HomeDirectory, PrimaryGroup, MemberOf
Set-ADAccountPassword -Identity $CurrentUser -NewPassword (ConvertTo-SecureString $NewPassword -AsPlainText -force) -Reset #reset the password

# Add to disabled accounts group
Add-ADGroupMember -Identity "Disabled Accounts" -Members $Textbox1.Text #add the disabled accounts group to the account

# Add description and set primarygroupID
Set-ADUser $Textbox1.Text -Description ("Leaver - " + $Reference.Text) -Enabled $false -Replace @{primaryGroupID=6431} #change description, disable account, set disabled accounts as primary

# Remove from all groups
$Groups = $CurrentUser | Select -Expand MemberOf
foreach ($Group in $Groups){
    $User = $Textbox1.Text
    $Ref = $Reference.Text
    $DateTime = (Get-Date -format "yyyyMMdd-HHmm")
    $DateTime + " - Removing " + $TextBox1.Text + " from " + $Group | Out-File "\\Ukdcmsfsp02v\it\IT Teams\IT Helpdesk\Knowledge Bank\Joiners and Leavers\LEAVERS\Leaver Script Logs\$User-$Ref-$DateTime.log" -Append

    Remove-ADGroupMember $Group -member $Textbox1.Text -Confirm:$false #TESTED ON AWS TEST ENVIRONMENT; works fine

}


# Move to leavers OU
Move-ADObject $CurrentUser.distinguishedName -TargetPath "OU=Leavers,DC=Kennedyslaw,DC=local" #move to leavers OU

# Rename Home driver folder to 'Leaver_'
$LeaverDrive = $CurrentUser.HomeDirectory #name leaver drive variable using homedir attribute
Rename-Item -Path $LeaverDrive -NewName $("Leaver_" + $Textbox1.Text) #rename the H drive to Leaver_Username

}

[void]$Form.ShowDialog()