Automation browser action with powershell

PSAutomation.ps1

#Needs to be ran as administrator
#Performs a login and logout using a valid account
#Hardcoded local host means you need to have a Visual Studio running an instance of the app, or change the url


#hacker-line that causes this script to run in a new session as administrator if not already elevated
if (!([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) 
{ 
    Start-Process powershell.exe "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" -Verb RunAs; 
    exit 
}



#sleep so we can see events happening on screen
function Sleep-UI{
    Start-Sleep -Milliseconds 600;     
    write-host 'sleep for UI'
}


#polls ie waiting until its ready, this should be used after navigation
function Wait-For-IE{
    while ($ie.Busy -eq $true -or $ie.Document -eq $null )
    {
        Start-Sleep -seconds 1;
        write-host 'waiting for IE'
    }   
}


#==============================================================================================

$username='' 
$password=''
$loginButtonName = 'btn-main-login'

$ie = New-Object -ComObject 'internetExplorer.Application'
$ie.Visible= $true
$ie.Navigate("http://localhost:51482/Account/Login")


Wait-For-IE  
Sleep-UI

$usernamefield = $ie.Document.getElementByID('UserName')
$usernamefield.value = $username

Sleep-UI

$passwordfield = $ie.Document.getElementByID('Password')
$passwordfield.value = $password

Sleep-UI

$submitButton = $ie.document.getElementByID($loginButtonName)
$submitButton.click()

Sleep-UI
Wait-For-IE  #navigation occurs in previous step

$welcomeButton = $ie.document.getElementByID('btn-header-welcome-user')
$welcomeButton.click()

Sleep-UI

$welcomeButton = $ie.document.getElementByID('link-header-dropdown-signout')
$welcomeButton.click()


#Ends