##======================================================================================
##Script:  EnableLyncUsers.ps1
##Email:   jreichardt@gmrc.com
##Date:    10/9/12
##Purpose: Use this script to add users already in AD domain into Lync 2010 environment.
##Notes:   Reads in a CSV file with pre populated AD Display names.  Can be adjusted to
##     work with alternate AD names (eg SIP address, UPN or AD log on name).
##======================================================================================

#Variables.
$File = "C:\Lync\test.csv"
$Log = New-Item -ItemType File -Path "C:\Lync\userlog.txt" -Force

#Import CSV File
$UserArray = Import-CSV -Path $File

#Check if user file is empty.
if ($UserArray -eq $null)
{
     write-host "No Users Found in Input File"
     exit 0
}

#Get total number of users in CSV file and begin proccessing.
$count = $UserArray | Measure-Object | Select-Object -expand count
Write-Host "Found " $count "Users to import."
Write-Host "Processing Users.....`n"
$index = 1

ForEach ($User in $UserArray) {

    Write-Host "Processing User " $index " of " $count
    $Fullname = $User.DisplayName
    $aduser = get-csaduser -Identity $Fullname

    #Check if user is in AD.  Log if they are NOT.
    if ($aduser -eq $null) {
        $notinad = $true
        Write-Host "User " $Fullname " is not in AD.  Double check spelling, etc." -Foregroundcolor Red
        Add-Content -Path $Log -Value "$($Fullname) is not in AD.  Double check spelling, etc."
    }

    else {
        $notinad = $false
    }

    #If user is in AD check if enabled in Lync and log if enabled.
    if ($aduser.Enabled) {
        Write-Host $User.DisplayName "is already enabled in Lync, skipping."  -Foregroundcolor Yellow
        Add-Content -Path $Log -Value "$($Fullname) is already enabled in Lync."
    }

    #User not enabled.
    else {
        Write-Host "Adding user " $User.DisplayName -Foregroundcolor Green
        Enable-CsUser -Identity $User.DisplayName -Registrarpool "lyncpoolGMRC.gmrcnt.local" -SipAddressType Emailaddress

        #Check if last command failed.  If it does, log it.
        if(!$?) {
            Add-Content -Path $Log -Value "$($Fullname) not enabled.  $(Get-Date)$($error[0])"
            continue
        }

    }

    $index++

}