# TLS 1.2 erzwingen (notwendig auf Windows Server 2016 / älteren Systemen)
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

# Adminrechte prüfen und ggf. neu starten
$isAdmin = ([Security.Principal.WindowsPrincipal] `
    [Security.Principal.WindowsIdentity]::GetCurrent() `
).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)

if (-not $isAdmin) {
    Start-Process powershell.exe `
        "-NoProfile -ExecutionPolicy Bypass -File `"$PSCommandPath`"" `
        -Verb RunAs
    exit
}

$ErrorActionPreference = 'Stop'

Write-Host "============================================================"
Write-Host " upterm Setup"
Write-Host "============================================================"
Write-Host ""

# 1. Execution Policy
Write-Host "[1/4] Setze PowerShell Execution Policy..."
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser -Force
Write-Host "      OK"

# 2. Scoop prüfen / installieren
Write-Host "[2/4] Pruefe Scoop..."
$scoopShims = "$env:USERPROFILE\scoop\shims"
$scoopInstalled = (Test-Path "$scoopShims\scoop.ps1") -or (Test-Path "$scoopShims\scoop.cmd")

if (-not $scoopInstalled) {
    Write-Host "      Scoop nicht gefunden - wird installiert..."
    Invoke-RestMethod -Uri https://get.scoop.sh | Invoke-Expression
    Write-Host "      Scoop installiert."
} else {
    Write-Host "      Scoop bereits vorhanden."
}

# PATH dieser Session aktualisieren damit scoop sofort verfuegbar ist
if ($env:PATH -notlike "*$scoopShims*") {
    $env:PATH = "$env:PATH;$scoopShims"
}

# 3. 7zip mit lessmsi-Workaround
Write-Host "[3/4] Installiere 7zip via lessmsi..."
scoop config use_lessmsi true
try {
    scoop install 7zip 2>&1 | Out-Null
} catch {
    Write-Host "      7zip fehlgeschlagen - bereinige und versuche erneut..."
    scoop uninstall 7zip 2>$null
    scoop cache rm 7zip 2>$null
    Remove-Item -Recurse -Force "$env:USERPROFILE\scoop\apps\7zip" `
        -ErrorAction SilentlyContinue
    scoop install 7zip
}
Write-Host "      OK"

# 4. upterm
Write-Host "[4/4] Installiere upterm..."
scoop bucket add upterm https://github.com/owenthereal/scoop-upterm 2>&1 | Out-Null
scoop install upterm
Write-Host "      OK"

Write-Host ""
Write-Host "============================================================"
Write-Host " Installation abgeschlossen!"
Write-Host "============================================================"
Write-Host ""
Write-Host " PowerShell NEU STARTEN, dann Session teilen mit:"
Write-Host ""
Write-Host "   upterm host --server ssh://upterm.ebesch.de:2222 --accept"
Write-Host ""
Write-Host " Client verbindet sich mit:"
Write-Host "   ssh TOKEN:HASH@upterm.ebesch.de -p 2222"
Write-Host ""
Read-Host "Enter zum Beenden"