PS Watcher

function Write-log {

    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$Path,

        [Parameter(Mandatory = $true)]
        [string]$Message,

        [Parameter(Mandatory = $true)]
        [string]$Component,

        [Parameter(Mandatory = $true)]
        [ValidateSet("Info","Warning","Error")]
        [string]$Type
    )

    switch ($Type) {
        "Info" { [int]$Type = 1 }
        "Warning" { [int]$Type = 2 }
        "Error" { [int]$Type = 3 }
    }

    # Create a log entry
    $Content = "<![LOG[$Message]LOG]!>" + `
    "<time=`"$(Get-Date -Format "HH:mm:ss.ffffff")`" " + `
    "date=`"$(Get-Date -Format "M-d-yyyy")`" " + `
    "component=`"$Component`" " + `
    "context=`"$([System.Security.Principal.WindowsIdentity]::GetCurrent().Name)`" " + `
    "type=`"$Type`" " + `
    "thread=`"$([Threading.Thread]::CurrentThread.ManagedThreadId)`" " + `
    "file=`"`">"

    # Write the line to the log file
    Add-Content -Path $Path -Value $Content
}

#Global Variables
$Version = "v1.0"
$Date = Get-Date -Format yyyyMMdd
$log = "C:\temp\manipulate.log"
$LogLevel = "None"

$oldText = 'OldText'
$newText = 'NewText'

$Source= 'C:\Temp\old'
$Destination = 'C:\Temp\New'

$Directory=get-childitem -name $Source

while ($Directory -ne 'NoEnd'){
    If ($Directory) {
        foreach ($file in $Directory){
            $content = (Get-Content $Source\$file) -replace $oldText,$newText
            $content |Set-Content $Destination\$file -Force -Confirm:$false
            Write-Log -Path $log -Message "Replaced $oldText with $newText in File: $file" -Component Script-Remove -Type Info
            Remove-Item -Path $Source\$file -Recurse -Force -Confirm:$false
            Write-Log -Path $log -Message "File: $file - removed..." -Component Script-Remove -Type Info
            Write-Log -Path $log -Message "---------------------------------------" -Component Script-Wait -Type Info
        }
        $Directory=get-childitem -name $Source
    }
    if (!$Directory){
        Write-Log -Path $log -Message "No New Files found, waiting for 60 seconds" -Component Script-Wait -Type Info
        Write-Log -Path $log -Message "---------------------------------------" -Component Script-Wait -Type Info
        sleep 60
        $Directory=get-childitem -name $Source
    }
    }