# Start a remote computer by TargetHost name using database of known hosts
param(
    [Parameter(Mandatory)]
    [string]$TargetHost,                            # Hostname when up "PortalControl"

    [string]$LogonUserName ="",                     # The account that auto-logs on (SAM name, e.g. "RoyF")

    [string]$HostMACList = ".\localComputers.csv"   # Known MAC addresses for target hosts, in format "TargetHost,MACAddress" (e.g. "PortalControl,00:11:22:33:44:55")
 
)

$data = Import-Csv -Path $HostMACList
$targetEntry = $data | Where-Object { $_.TargetHost -eq $TargetHost }

if (-not $targetEntry) {
    Write-Error "No entry found for -TargetHost '$TargetHost' in '$HostMACList'."
    exit 1
}

Write-Host  "Initiating wake-on-lan for $($targetEntry.TargetHost) with MAC address $($targetEntry.MACAddress)" -ForegroundColor Cyan

$cmd = ".\RemoteStartup.ps1 -MacAddress $($targetEntry.MACAddress) -TargetHost $($targetEntry.TargetHost)"
if ($LogonUserName -ne "") {
    $cmd += " -LogonUserName $LogonUserName"
}
Invoke-Expression -Command $cmd