setup_startup_task.ps1

<#
.SYNOPSIS
    Automated registration for the AHK Startup Fleet in Windows Task Scheduler.

.DESCRIPTION
    Registers "AHK Startup Script" in Windows Task Scheduler:
      - Action: Launches AllScripts\StartupScript.exe
      - Trigger: At logon of current user with a configurable delay (default 30 seconds)
      - Privilege: Standard user (RunLevel Limited): zero UAC prompt on logon
      - Resilience: Runs on battery, no execution timeout, demand start allowed

.PARAMETER Uninstall
    Unregisters and removes the "AHK Startup Script" task from Windows Task Scheduler.

.PARAMETER DelaySeconds
    Delay in seconds after user logon before launching StartupScript.exe (default: 30).
#>

param(
    [switch]$Uninstall,
    [int]$DelaySeconds = 30
)

$ErrorActionPreference = "Stop"
$taskName = "AHK Startup Script"

# Check for Administrator privileges
$isAdmin = ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
if (-not $isAdmin) {
    Write-Host "Requesting Administrator elevation to register Scheduled Task..." -ForegroundColor Yellow
    $argsList = "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`""
    if ($Uninstall) { $argsList += " -Uninstall" }
    if ($DelaySeconds -ne 30) { $argsList += " -DelaySeconds $DelaySeconds" }
    Start-Process powershell.exe -ArgumentList $argsList -Verb RunAs -Wait
    exit
}

if ($Uninstall) {
    $existing = Get-ScheduledTask -TaskName $taskName -ErrorAction SilentlyContinue
    if ($existing) {
        Unregister-ScheduledTask -TaskName $taskName -Confirm:$false
        Write-Host "[OK] Unregistered scheduled task: $taskName" -ForegroundColor Yellow
    } else {
        Write-Host "[INFO] Task '$taskName' is not registered." -ForegroundColor Gray
    }
    exit 0
}

$root    = $PSScriptRoot
$workDir = Join-Path $root "AllScripts"
$exePath = Join-Path $workDir "StartupScript.exe"

if (-not (Test-Path $exePath)) {
    Write-Host "[WARNING] StartupScript.exe not found at $exePath" -ForegroundColor Yellow
    Write-Host "Please compile it first by running: .\build_startup_exe.ps1" -ForegroundColor Yellow
    Write-Host "Registering task anyway so it will be ready once compiled..." -ForegroundColor Gray
}

# 1. Action: Execute compiled StartupScript.exe with AllScripts as working directory
$action = New-ScheduledTaskAction -Execute $exePath -WorkingDirectory $workDir

# 2. Trigger: At logon of current user, delayed by N seconds to let Windows settle
$trigger = New-ScheduledTaskTrigger -AtLogOn -User $env:USERNAME
if ($DelaySeconds -gt 0) {
    $trigger.Delay = "PT$($DelaySeconds)S"
}

# 3. Principal: Standard interactive user session (no UAC prompt required on boot)
$principal = New-ScheduledTaskPrincipal -UserId $env:USERNAME -LogonType Interactive -RunLevel Limited

# 4. Settings: Run on battery, allow manual start, and remove default execution timeout
$settings = New-ScheduledTaskSettingsSet `
    -AllowStartIfOnBatteries `
    -DontStopIfGoingOnBatteries `
    -ExecutionTimeLimit ([TimeSpan]::Zero)

# 5. Register or overwrite task
Register-ScheduledTask -TaskName $taskName `
    -Action $action `
    -Trigger $trigger `
    -Principal $principal `
    -Settings $settings `
    -Force | Out-Null

Write-Host "========================================================" -ForegroundColor Green
Write-Host " [OK] Successfully registered task: '$taskName'" -ForegroundColor Green
Write-Host "========================================================" -ForegroundColor Green
Write-Host "Target:   $exePath" -ForegroundColor White
Write-Host "Trigger:  At logon of $env:USERNAME ($DelaySeconds-second delay)" -ForegroundColor White
Write-Host "To test:  Start-ScheduledTask -TaskName '$taskName'" -ForegroundColor Gray
Write-Host "To remove: .\setup_startup_task.ps1 -Uninstall" -ForegroundColor Gray