script that runs forever and creates backup files based on time of day

create_files_based_on_time.ps1

$timeItems = @("09", "13", "18", "22")
Write-Host "starting and waiting for hours [" $timeItems "]"  

function New-Backup {

    $date = Get-Date
    $currentHour = Get-Date -Format HH 

    $continue = 0
    foreach ($t in $timeItems) {
        if ( $t -eq $currentHour ) {
            $continue = 1
        } 
    }   

    if ($continue -eq 0 ) {
        return
    }

    
    $dateString = $date.tostring("yyyy-MM-dd-hh") 
    $newBackupDir = $PSScriptRoot + "\backups-" + $dateString
    $newBackupZip = $PSScriptRoot + "\archive-" + $dateString + ".zip"
    

    if ( -Not ( Test-Path $newBackupDir ) ) {
        
        Write-Host "creating a directory ... ["$PSScriptRoot "] "$newBackupDir " " $newBackupZip
        $nDir = New-Item -ItemType Directory -Path $newBackupDir -Force
            
        if ( $nDir.Exists ) {
            Write-Host "created ok..."
        }
        else {
            Write-Host "Error creating directory " $Error
            Exit
        }
            
        Compress-Archive -Path $PSScriptRoot -DestinationPath $newBackupZip

        # encrypt / decrypt with
        # https://4sysops.com/archives/encrypt-and-decrypt-files-with-powershell-and-pgp/
        # Add-Encryption -FolderPath C:\Users\USER\projects\powershell\important\ -Password VERYSECRET 
        # Remove-Encryption -FolderPath C:\Users\USER\projects\powershell\important\ -Password VERYSECRET -Verbose
        # create a windows link with 
        # powershell.exe -command "& 'C:\Users\USER\projects\powershell\make_dir_datestr.ps1' -MyArguments blah"
        # script creation of the link with 
        # $WshShell = New-Object -comObject WScript.Shell
        # $Shortcut = $WshShell.CreateShortcut("C:\Users\USER\projects\powershell\RunBackupScript.lnk")
        # $Shortcut.TargetPath = "powershell.exe"
        # $Shortcut.Arguments = "-command `"& 'C:\Users\USER\projects\powershell\make_dir_datestr.ps1' -MyArguments blah`""  
        # $Shortcut.Save()
    }
}



while ($true) {
    New-Backup
    Start-Sleep -Seconds 30
}