# Set-EventSaverPower.ps1
#
# Keep shopfloor monitors + PCs awake so the EventSaver ad screensaver is
# actually visible. Runs under GE-Enforce (SYSTEM) every cycle (Always).
# Sets monitor-off + sleep to Never on the ACTIVE power scheme, so a screen
# never blanks out from under the screensaver. Re-applies each cycle, so a
# power-plan change is corrected on the next enforce pass.
#
# Screensaver must trigger before any monitor-off would - with monitor-off
# set to Never here, the screensaver (2-10 min idle) always wins.

$ErrorActionPreference = 'Continue'

$logDir = 'C:\Logs\Shopfloor'
if (-not (Test-Path $logDir)) { New-Item -ItemType Directory -Path $logDir -Force | Out-Null }
$log = Join-Path $logDir 'eventsaver.log'
function Write-Log($m) {
    Add-Content -LiteralPath $log -Value ("{0}  {1}" -f (Get-Date -Format 'yyyy-MM-dd HH:mm:ss'), $m)
}

# 0 = Never. Cover monitor + standby, AC + DC (shopfloor PCs are AC, DC is
# harmless belt-and-suspenders).
& powercfg /change monitor-timeout-ac 0 2>&1 | Out-Null
& powercfg /change monitor-timeout-dc 0 2>&1 | Out-Null
& powercfg /change standby-timeout-ac 0 2>&1 | Out-Null
& powercfg /change standby-timeout-dc 0 2>&1 | Out-Null

Write-Log "power: monitor-off + sleep set to Never (AC+DC) for EventSaver visibility"
exit 0