#############################
#
#      Backup Intranet
#
#############################

# Setting path for vboxmanage
$Env:Path = "c:\Program Files\Oracle\VirtualBox\"

# creating backup paths
$remoteBackupPath = "\\freenas\programas\VM_Backup"
$backupDriveLetterMount = "L"
$backupFilename = " -o " + $backupDriveLetterMount + ":\" + [string](Get-Date).Year + [string](Get-Date).Month + [string](Get-Date).Day + "_Intranet_Backup.ova"
$vmName = "2018_intranet"
# setting path var to VirtualBox folder
$Reg = "Registry::HKLM\System\CurrentControlSet\Control\Session Manager\Environment"
$regex = "[cC]\:\\Program Files\\Oracle\\VirtualBox"
$OldPath = (Get-ItemProperty -Path "$Reg" -Name PATH).Path

# check if PATH is already set
if ( -Not ($OldPath -match $regex)){
    Write-host "`nSetting Path Variable to $AddedLocation"
    Set-ItemProperty -Path "$Reg" -Name PATH -Value $virtualBoxPath
}

# mounting backup path New-PSDrive -Name L -Root \\freenas\programas\VM_Backup\ -Persist -PSProvider FileSystem
New-PSDrive -Name $backupDriveLetterMount -Root $remoteBackupPath -Persist -PSProvider FileSystem

# stoping vm
$vmanagerStopVM = "VBoxManage.exe"
$vmanagerStopVM += @(" controlvm ")
$vmanagerStopVM += @(@vmName)
$vmanagerStopVM += @(" poweroff")
Write-host "$vmanagerStopVM"
Invoke-Expression "$vmanagerStopVM"

#backing up vm
$vmanagerBackup = "VBoxManage.exe"
$vmanagerBackup += @(" export ")
$vmanagerBackup += @($vmName)
$vmanagerBackup += @(" --ovf10")
$vmanagerBackup  += @([string]$backupFilename)
Write-host "$vmanagerBackup"
Invoke-Expression "$vmanagerBackup"

# remove old Backups
$backupFileCount = ( Get-ChildItem -Filter *.ova $remoteBackupPath | Measure-Object ).Count
$limitDate = (get-date).AddDays(-12).ToString("yyyMMdd")
$backupPath = $backupDriveLetterMount + ":\"

# start vm
$vmanagerStart = "VBoxManage.exe"
$vmanagerStart += @(" startvm ")
$vmanagerStart += @($vmName)
$vmanagerStart += @(" -type headless")
Write-host "$vmanagerStart"
Invoke-Expression "$vmanagerStart"

#if ($backupFileCount -gt 3) {
#   Get-ChildItem $backupPath |
#   ForEach-Object {
#        # get actual 
#        $lasWriteTime = (Get-Content $_.LastWriteTime).ToString("yyMMdd")
#
#        # delete backup files older than 12 days
#        if ($lasWriteTime -lt $limitDate ) {
#            $fileNameFull = Get-Content $_.FullName
#            Remove-Item –path $fileNameFull
#        }
#   }
# }

# removing backup path
Remove-PSDrive -Name $backupDriveLetterMount