From 2ce45c9bb6f59430a9c40d486ec83106cd8b2f0a Mon Sep 17 00:00:00 2001
From: Rhino <1+rhino@noreply.gitea.rhino.nrw>
Date: Sat, 20 Jun 2026 20:23:46 +0200
Subject: [PATCH] =?UTF-8?q?feat:=20zentrales=20rollback.ps1=20=E2=80=94=20?=
 =?UTF-8?q?stellt=20Stand=20vor=20Update=20wieder=20her?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 scripts/rollback.ps1 | 102 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 scripts/rollback.ps1

diff --git a/scripts/rollback.ps1 b/scripts/rollback.ps1
new file mode 100644
index 0000000..2884c69
--- /dev/null
+++ b/scripts/rollback.ps1
@@ -0,0 +1,102 @@
+# StatusQuo_Updates/scripts/rollback.ps1
+# Stellt den Stand vor dem letzten Update wieder her.
+# Erwartet im aufrufenden Scope (wie update.ps1):
+#   $root     - Installationspfad
+#   $stopBat  - (optional) Stop-Skript-Dateiname oder ''
+#   $startBat - (optional) Start-Skript-Dateiname
+$ErrorActionPreference = 'Stop'
+
+$_stopName  = if ($null -ne $stopBat)  { $stopBat }  else { 'stop.bat' }
+$_startName = if ($null -ne $startBat) { $startBat } else { 'dgl.bat' }
+
+# Verfügbare Backups suchen
+$_backupBase = Join-Path $root '.backup'
+if (-not (Test-Path -LiteralPath $_backupBase)) {
+    Write-Host "FEHLER: Kein Backup-Verzeichnis gefunden!" -ForegroundColor Red
+    Write-Host "  Gesucht: $_backupBase"
+    Write-Host "  Backups werden automatisch beim nächsten Update angelegt."
+    return
+}
+
+$_backups = Get-ChildItem -LiteralPath $_backupBase -Directory |
+    Where-Object { $_.Name -match '^\d{8}-\d{6}$' } | Sort-Object Name -Descending
+
+if ($_backups.Count -eq 0) {
+    Write-Host "FEHLER: Keine Backups vorhanden." -ForegroundColor Red
+    Write-Host "  Backups werden automatisch beim nächsten Update angelegt."
+    return
+}
+
+Write-Host ""
+Write-Host "Verfügbare Backups:" -ForegroundColor Cyan
+$_i = 0
+foreach ($bk in $_backups) {
+    $suffix = if ($_i -eq 0) { "  ← neuestes" } else { "" }
+    Write-Host ("  [{0}] {1}{2}" -f $_i, $bk.Name, $suffix)
+    $_i++
+}
+
+Write-Host ""
+$_choice = Read-Host "Backup-Nummer wählen (Enter = neuestes [0])"
+if ($_choice -eq '') { $_choice = '0' }
+if ($_choice -notmatch '^\d+$' -or [int]$_choice -ge $_backups.Count) {
+    Write-Host "Ungültige Auswahl. Abgebrochen." -ForegroundColor Yellow
+    return
+}
+
+$_selected = $_backups[[int]$_choice]
+Write-Host ""
+Write-Host "Stelle wieder her: $($_selected.Name)" -ForegroundColor Yellow
+
+$yn = Read-Host "Rollback durchführen? Aktuelle Dateien werden überschrieben! [j/N]"
+if ($yn -notin 'j','J','y','Y') { Write-Host "Abgebrochen."; return }
+
+# Server stoppen
+Write-Host "Stoppe Server ..."
+if ($_stopName -ne '') {
+    $_stopPath = Join-Path $root $_stopName
+    if (Test-Path -LiteralPath $_stopPath) {
+        & cmd /c "`"$_stopPath`""
+        Start-Sleep -Seconds 2
+    } else {
+        Write-Host "  (Stop-Skript '$_stopName' nicht gefunden — übersprungen)" -ForegroundColor DarkYellow
+    }
+} else {
+    Write-Host "  (Kein Stop-Skript konfiguriert — übersprungen)" -ForegroundColor DarkYellow
+}
+
+# Nutzerdaten wiederherstellen
+$_dataBackup = Join-Path $_selected.FullName 'data'
+if (Test-Path -LiteralPath $_dataBackup) {
+    $dataTarget = Join-Path $root 'data'
+    if (Test-Path -LiteralPath $dataTarget) {
+        # Aktuellen data/-Ordner vor Überschreiben sichern
+        $safeName = "data_vor_rollback_$(Get-Date -Format 'yyyyMMdd-HHmmss')"
+        Rename-Item -LiteralPath $dataTarget -NewName $safeName -ErrorAction SilentlyContinue
+    }
+    Copy-Item -Path $_dataBackup -Destination $dataTarget -Recurse -Force
+    $dataCount = (Get-ChildItem -LiteralPath $dataTarget -Recurse -File -ErrorAction SilentlyContinue).Count
+    Write-Host "Nutzerdaten wiederhergestellt ($dataCount Dateien)." -ForegroundColor Green
+} else {
+    Write-Host "  (Kein Nutzerdaten-Backup in diesem Stand)" -ForegroundColor DarkYellow
+}
+
+# Code-Dateien wiederherstellen
+$_codeFiles = Get-ChildItem -LiteralPath $_selected.FullName -File -ErrorAction SilentlyContinue
+foreach ($f in $_codeFiles) {
+    Copy-Item -Path $f.FullName -Destination (Join-Path $root $f.Name) -Force
+}
+Write-Host "Code-Dateien wiederhergestellt ($($_codeFiles.Count) Dateien)." -ForegroundColor Green
+
+# Server neu starten
+$_startPath = Join-Path $root $_startName
+if (Test-Path -LiteralPath $_startPath) {
+    Start-Process -FilePath 'cmd.exe' -ArgumentList "/c `"$_startPath`"" -WindowStyle Hidden
+    Write-Host "Server gestartet." -ForegroundColor Green
+} else {
+    Write-Host "Start-Skript '$_startName' nicht gefunden — bitte Server manuell starten." -ForegroundColor Yellow
+}
+
+Write-Host ""
+Write-Host "=== Rollback abgeschlossen ===" -ForegroundColor Green
+Write-Host "    Wiederhergestellt: $($_selected.Name)" -ForegroundColor Cyan