# Installs a Windows Scheduled Task that starts usher at logon and
# restarts on failure. This is optional — in normal operation, LibreWolf
# manages usher's lifecycle via Native Messaging. This task ensures
# usher is available for pre-LibreWolf power monitoring.
$ErrorActionPreference = "Stop"

$taskName = "VestibuleUsher"
$usherPath = Join-Path $env:LOCALAPPDATA "Vestibule\usher.exe"

if (-not (Test-Path $usherPath)) {
  Write-Error "usher.exe not found at $usherPath"
  Write-Host "  Run install-native-host.ps1 first"
  exit 1
}

# Remove existing task if present (idempotent)
$existing = Get-ScheduledTask -TaskName $taskName -ErrorAction SilentlyContinue
if ($existing) {
  Unregister-ScheduledTask -TaskName $taskName -Confirm:$false
  Write-Host "removed existing task: $taskName"
}

$action = New-ScheduledTaskAction -Execute $usherPath
$trigger = New-ScheduledTaskTrigger -AtLogOn
$settings = New-ScheduledTaskSettingsSet `
  -RestartCount 3 `
  -RestartInterval (New-TimeSpan -Minutes 1) `
  -AllowStartIfOnBatteries `
  -DontStopIfGoingOnBatteries

Register-ScheduledTask `
  -TaskName $taskName `
  -Action $action `
  -Trigger $trigger `
  -Settings $settings `
  -Description "Vestibule usher — kiosk unlock helper + power monitor" `
  -RunLevel Limited

Write-Host "installed scheduled task: $taskName"
Write-Host "  starts at logon, restarts up to 3x on failure"
Write-Host ""
Write-Host "To start now:  Start-ScheduledTask -TaskName $taskName"
Write-Host "To check:      Get-ScheduledTask -TaskName $taskName | Get-ScheduledTaskInfo"
Write-Host "To view logs:  Event Viewer > Windows Logs > Application"