#Set Variables
$inv = (Get-Variable MyInvocation -Scope 0).Value;
$wrkdir = Split-Path $inv.MyCommand.Path;
$rootPath = (Split-Path $wrkdir);
$logs = "$wrkdir\logs"
$inputpath = "$wrkdir\inputs"
$date = get-date -Format "yyyyMMdd"
$inputfile = $date + "_NewHireRehire.txt"
$FetchPath = "\\SERVERNAME\d$\apps\newhirerehire"
$Inputtesetpath = "$FetchPath\$inputfile"
$OutputPath = "$wrkdir\output"
$ArchivePath = "$wrkdir\Archive"
$Hostname = $env:COMPUTERNAME
# Load up our common functions.
# It should be like this '..\Utils\utils.ps1' from the script's directory.
$imp = $rootPath + "\Utils\utils.ps1";
. $imp;

logmsgmfc $logs\$date.log "Starting Script"

logmsgmfc $logs\$date.log "Importing Active Directory Cmdlets"
Import-module Activedirectory
$OU = Get-ADOrganizationalUnit -Filter {name -like "users - holding"}


Function Create-Password {

$lowercase = @("a","b","c","d","e","f","g","h","i","j","k","m","n","p","q","r","s","t","u","v","w","x","y","z")
$Uppercase = @("A","B","C","E","F","G","H","J","K","L","M","N","P","Q","R","S","T","U","V","W","X","Y","Z")
$numeric = @("0","1","2","3","4","5","6","7","8","9")
$special = @("!","#","%","&")

$pwd = @()
$pwd1 = @()
$pwd2 = @()
$pwd3 = @()
$pwd4 = @()


For($loop=1;$loop -le 2;$loop++) { $pwd1+=(get-random -inputobject $lowercase) }
For($loop=1;$loop -le 2;$loop++) { $pwd2+=(get-random -inputobject $uppercase) }
For($loop=1;$loop -le 2;$loop++) { $pwd3+=(get-random -inputobject $numeric) }
For($loop=1;$loop -le 2;$loop++) { $pwd4+=(get-random -inputobject $special) }


$pwd = ($pwd1 + $pwd2 + $pwd3 + $pwd4)

$pwd = ($pwd | Sort-Object {get-random})

$pwdfinal = ([string]::Join("",$pwd))

$pwdfinal }


Function Create-UserName {

param ($fname, $mname, $lname)


    $fname = $fname.tochararray()
    $mname = $mname.tochararray()
    $lname = $lname.tochararray()

    $Tempusername = $fname[0] + $mname[0] + $lname[0] + $lname[1] + $lname[2] + $lname[3] + $lname[4] + $lname[5]
    $Tempusername2 = $fname[0] + $fname[1] + $mname[0] + $lname[0] + $lname[1] + $lname[2] + $lname[3] + $lname[4]
    $Tempusername3 = $fname[0] + $fname[1] + $fname[2] + $mname[0] + $lname[0] + $lname[1] + $lname[2] + $lname[3]

    $CheckUser1 = Get-Aduser -Filter {Samaccountname -eq $Tempusername}
    $CheckUser2 = Get-Aduser -Filter {Samaccountname -eq $Tempusername2}
    $CheckUser3 = Get-Aduser -Filter {Samaccountname -eq $Tempusername3}
    If ($CheckUser1 -eq $null) {$finalUserName = $Tempusername.tolower()}
         elseif ($checkuser2 -eq $null) {$finalUserName = $Tempusername2.tolower()}
         elseif ($checkuser3 -eq $null) {$finalUserName = $Tempusername3.tolower()}

    Else {  logmsgmfc $logs\$date.log "No Available Usernames for $fname $mname $lname"
            logmsgmfc $logs\$date.log "Sending Alert Email for Username Creation Fail"
            SendEmail '[email protected]' '[email protected]' "Username Creation Failed" " Could not create Username for $FirstName $MiddleInt $LastName.  Please check log $date.log"}
 Return $finalUserName

     }

Function Set-GroupMembership {

Param ($TargetUserName, $title, $DeptNumber)

$DeptNumFilter = $DeptNumber + "*"

$TargetUser = get-aduser -Filter {samaccountname -eq $TargetUserName}

$SourceUser = get-aduser -filter {(department -like $deptNumFilter) -and (title -like $title)} -properties memberof |select-object -first 1

if ($SourceUser -eq $null) {
                            $SourceUser = get-aduser -filter {samaccountname -like "ggroups" } -properties memberof
                            }

foreach ($group in $SourceUser.memberof)
     {
       Try
            { add-adgroupmember $group -Member $TargetUser
              logmsgmfc $logs\$date.log "Adding Group $Group Successful" }
        Catch { logmsgmfc $logs\$date.log "Adding Group $Group Failed"
                logmsgmfc $logs\$date.log $_.exception.message }
      }

}


#fetch input file from SERVERNAME and place in Input folder
logmsgmfc $logs\$date.log "Copy Input File from SERVERNAME to Input Folder"
IF (Test-Path $FetchPath\$Inputfile) {
Move-Item -path $FetchPath\$inputfile -destination $inputpath
logmsgmfc $logs\$date.log "Input File from SERVERNAME Copied to Input Folder Successfully" }
Else { logmsgmfc $logs\$date.log "Cannont Copy Input File from SERVERNAME to Input Folder, No File Found"; EXIT}


logmsgmfc $logs\$date.log "Importing File $inputfile"
Try {
        $Inputs = import-csv -Delimiter "`t" -Path $inputpath\$inputfile
        logmsgmfc $logs\$date.log "$inputfile Imported Successfully"
    }
Catch {
        logmsgmfc $logs\$date.log "Importing File $InputFile Failed"
        logmsgmfc $logs\$date.log $_.Exception.Message
        EXIT
      }

logmsgmfc $logs\$date.log "Begining User Creation Process"


ForEach ($Row in $Inputs) {

$FirstName = $Row.FirstName
$MiddleInt = $Row.MiddleName
$LastName = $Row.LastName
$DeptNum = $Row.DepartmentNumber
$DeptTitle = $Row.DepartmentTitle
$Jobtitle = $row.Position
$EmpNumber = $row.EmployeeNumber
$Rehire = get-aduser -filter {description -like $EmpNumber}

IF ($Rehire -eq $Null) {
logmsgmfc $logs\$date.log "Creating Password"
$password = Create-Password

logmsgmfc $logs\$date.log "Creating Username for $FirstName $MiddleInt $LastName"
$Username = Create-UserName $FirstName $MiddleInt $LastName

IF ($Username -ne $null) {

Try {

        logmsgmfc $logs\$date.log "Trying to Create User $username"
        New-aduser $Username -GivenName $FirstName -Initials $MiddleInt -Surname $LastName -DisplayName "$firstname $middleint $lastname" -AccountPassword (ConvertTo-SecureString $password -AsPlainText -Force) -userprincipalname ($Username + "@bmh.bmnet.com") -Enabled $true -Description $EmpNumber -Department $Deptnum -ScriptPath "XXX.bat" -Path $OU.distinguishedname
        logmsgmfc $logs\$date.log "User $username Created Successfully"
    }
Catch {
        logmsgmfc $logs\$date.log "Creating User Failed"
        logmsgmfc $logs\$date.log $_.Exception.Message
        SendEmail '[email protected]' '[email protected]' "User Account Creation Failed" "Please check log $date.log"
        }

logmsgmfc $logs\$date.log "Adding User to Proper Groups"
Set-GroupMembership $Username $Jobtitle $DeptNum

Try {
    logmsgmfc $logs\$date.log "Adding User Info to Results File"
    Add-Content -Path "$OutputPath\NewUsers_$date.csv" -Value "$firstname $MiddleInt $LastName,$UserName,$Password"
    }
Catch {logmsgmfc $logs\$date.log "No Output to Add to Results File"}


}
Else {logmsgmfc $logs\$date.log "Creating User Failed Because of Lack of Available Usernames"}
}
Else {logmsgmfc $logs\$date.log "$firstname $middleint $lastname Appears to be a Rehire. User Account Already Exists"
      logmsgmfc $logs\$date.log "Attempting to Reenable Existing Account"
      Try {$Rehire | Enable-Adaccount
           logmsgmfc $logs\$date.log "Account Enabled"
           logmsgmfc $logs\$date.log "Moving to Users - Holding OU"
           $rehire | Move-adobject -TargetPath $OU
           logmsgmfc $logs\$date.log "Adding User Info to Results File"
    Add-Content -Path "$OutputPath\NewUsers_$date.csv" -Value "$firstname $MiddleInt $LastName,$Rehire.samaccountname,Rehire" }
      Catch {logmsgmfc $logs\$date.log "Enabling Existing Account Failed"
              logmsgmfc $logs\$date.log $_.exception.message}
            }
} #END ForEach

#Email Results to Helpdesk
logmsgmfc $logs\$date.log "Sending Results File to HelpDesk"
SendEmailAttachment '[email protected]' '[email protected]' "User Creation Results $date" "This file contains the usernames and passwords for the newly created users" "$OutputPath\NewUsers_$date.csv"


#Archive Files
logmsgmfc $logs\$date.log "Move Input Files to Archive Folder"
Move-Item -path $inputpath\$Inputfile -Destination $ArchivePath
logmsgmfc $logs\$date.log "Move Results File to Archive Folder"
Move-Item -Path "$OutputPath\NewUsers_$date.csv" -Destination $ArchivePath
#Purge Old Files from Archive
purgeFiles -path $Archivepath -age 30 -include "*.*"

logmsgmfc $logs\$date.log "Script Complete"