$ScriptDirectory = if ([string]::IsNullOrWhiteSpace(($PSScriptRoot))) { Get-Location } else { $PSScriptRoot }

$DestinationDirectory = [IO.Directory]::CreateDirectory("C:\Scripts").FullName

Copy-Item -Path ([IO.Path]::Combine($ScriptDirectory, "Downloader")) `
    -Destination $DestinationDirectory `
    -Recurse `
    -Force `
    -Confirm:$false

# -------------------- Variablen --------------------
$TaskName   = "Download latest application software"
$ScriptPath = [IO.Path]::Combine($DestinationDirectory, "Downloader\Script.ps1")

# Optional: Task Beschreibung
$TaskDescription = "Startet das PowerShell-Projekt automatisch beim Systemstart."

# -------------------- Existiert der Task schon? --------------------
$existingTask = Get-ScheduledTask -TaskName $TaskName -ErrorAction SilentlyContinue

if ($existingTask) {
    Write-Host "Task '$TaskName' existiert bereits. Aktualisiere..." -ForegroundColor Yellow
    Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false
}

# -------------------- Task Action --------------------
# PowerShell-Executable
$pwshPath = (Get-Command pwsh -ErrorAction SilentlyContinue).Source
if (-not $pwshPath) { $pwshPath = (Get-Command powershell).Source }

$Action = New-ScheduledTaskAction -Execute $pwshPath -Argument "-NoProfile -ExecutionPolicy Bypass -File `"$ScriptPath`""

# -------------------- Task Trigger --------------------
# Beispiel: Beim Systemstart (kannst du ändern zu -AtLogon, -Daily etc.)
$Trigger = New-ScheduledTaskTrigger -Daily -At 20:00

# -------------------- Task Einstellungen --------------------
$Settings = New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -StartWhenAvailable

# -------------------- Task Principal --------------------
# Führt mit höchsten Privilegien unter SYSTEM aus
$Principal = New-ScheduledTaskPrincipal -UserId "SYSTEM" -RunLevel Highest

# -------------------- Task Registrierung --------------------
try{
    Register-ScheduledTask `
        -TaskName $TaskName `
        -Description $TaskDescription `
        -Action $Action `
        -Trigger $Trigger `
        -Principal $Principal `
        -Settings $Settings

    Write-Host "Task '$TaskName' wurde erfolgreich registriert!" -ForegroundColor Green
    Write-Host "Pfad: $ScriptPath"
}
catch{
    Write-Host "Fehler beim registrieren von Task '$TaskName'. $($_.Exception.Message)" -ForegroundColor Red
}