Enhance VM creation request validation and UI.

- Introduced `prepareForValidation` method to handle input merging for `behind_traefik` and `devices`.
- Updated validation rules to conditionally require `subdomain` based on `behind_traefik`.
- Added custom attribute names and error messages for better user feedback.
- Improved the create VM form to dynamically show/hide subdomain fields based on the `behind_traefik` checkbox state.
- Adjusted the user selection logic to display a message when no customers are available.

app/Http/Requests/StoreVmRequest.php

@@ -13,14 +13,55 @@ class StoreVmRequest extends FormRequest
         return $this->user()->can('create', Customer::class);
     }
 
+    protected function prepareForValidation(): void
+    {
+        $behindTraefik = $this->resolveBehindTraefik();
+
+        $merge = ['behind_traefik' => $behindTraefik];
+
+        if (! $behindTraefik) {
+            $merge['subdomain'] = null;
+        }
+
+        if ($this->has('devices') && is_array($this->input('devices'))) {
+            $devices = collect($this->input('devices'))
+                ->filter(fn ($device) => is_array($device) && ! empty($device['type']))
+                ->values()
+                ->all();
+
+            $merge['devices'] = $devices === [] ? null : $devices;
+        }
+
+        $this->merge($merge);
+    }
+
+    public function wantsTraefik(): bool
+    {
+        return $this->boolean('behind_traefik');
+    }
+
+    private function resolveBehindTraefik(): bool
+    {
+        if (! $this->has('behind_traefik')) {
+            return false;
+        }
+
+        $value = $this->input('behind_traefik');
+
+        if (is_array($value)) {
+            return in_array('1', $value, true) || in_array(1, $value, true) || in_array(true, $value, true);
+        }
+
+        return filter_var($value, FILTER_VALIDATE_BOOLEAN);
+    }
+
     public function rules(): array
     {
-        $baseDomain = config('hosting.plesk.base_domain');
-
         return [
             'name' => ['required', 'string', 'max:100', 'regex:/^[a-zA-Z0-9][a-zA-Z0-9_-]*$/'],
             'subdomain' => [
-                Rule::requiredIf(fn () => $this->boolean('behind_traefik')),
+                Rule::excludeIf(fn () => ! $this->wantsTraefik()),
+                Rule::requiredIf(fn () => $this->wantsTraefik()),
                 'nullable',
                 'string',
                 'max:63',
@@ -28,7 +69,6 @@ class StoreVmRequest extends FormRequest
             ],
             'behind_traefik' => ['boolean'],
             'user_id' => [
-                Rule::requiredIf(fn () => $this->user()->isAdmin()),
                 'nullable',
                 'exists:users,id',
             ],
@@ -46,7 +86,7 @@ class StoreVmRequest extends FormRequest
 
     public function domain(): ?string
     {
-        if (! $this->boolean('behind_traefik') || ! $this->filled('subdomain')) {
+        if (! $this->wantsTraefik() || ! $this->filled('subdomain')) {
             return null;
         }
 
@@ -61,4 +101,33 @@ class StoreVmRequest extends FormRequest
 
         return $this->user()->id;
     }
+
+    /**
+     * @return array<string, string>
+     */
+    public function attributes(): array
+    {
+        return [
+            'name' => 'VM-Name',
+            'subdomain' => 'Subdomain',
+            'user_id' => 'Kunde',
+            'cpu' => 'vCPUs',
+            'ram' => 'RAM',
+            'disk' => 'Festplatte',
+            'install_iso' => 'Installations-ISO',
+            'devices.*.type' => 'Gerätetyp',
+        ];
+    }
+
+    /**
+     * @return array<string, string>
+     */
+    public function messages(): array
+    {
+        return [
+            'required' => ':attribute ist erforderlich.',
+            'regex' => ':attribute hat ein ungültiges Format.',
+            'exists' => 'Der gewählte :attribute ist ungültig.',
+        ];
+    }
 }

lang/de/validation.php

@@ -0,0 +1,28 @@
+<?php
+
+return [
+
+    'accepted' => ':attribute muss akzeptiert werden.',
+    'required' => ':attribute muss ausgefüllt werden.',
+    'string' => ':attribute muss eine Zeichenkette sein.',
+    'integer' => ':attribute muss eine ganze Zahl sein.',
+    'boolean' => ':attribute muss wahr oder falsch sein.',
+    'email' => ':attribute muss eine gültige E-Mail-Adresse sein.',
+    'max' => [
+        'string' => ':attribute darf maximal :max Zeichen haben.',
+        'integer' => ':attribute darf maximal :max sein.',
+    ],
+    'min' => [
+        'string' => ':attribute muss mindestens :min Zeichen haben.',
+        'integer' => ':attribute muss mindestens :min sein.',
+    ],
+    'regex' => 'Das Format von :attribute ist ungültig.',
+    'unique' => ':attribute ist bereits vergeben.',
+    'confirmed' => ':attribute stimmt nicht mit der Bestätigung überein.',
+    'exists' => 'Der gewählte :attribute ist ungültig.',
+    'in' => 'Der gewählte :attribute ist ungültig.',
+    'required_if' => ':attribute ist erforderlich, wenn :other :value ist.',
+
+    'attributes' => [],
+
+];

resources/views/vms/create.blade.php

@@ -13,30 +13,39 @@
             <input name="name" value="{{ old('name') }}" required class="mt-1 w-full rounded-lg border border-slate-700 bg-slate-800 px-3 py-2">
         </label>
 
-        @if($customers->isNotEmpty())
+        @if(auth()->user()->isAdmin())
         <label class="block">
-            <span class="text-sm text-slate-400">Zugewiesener Kunde</span>
+            <span class="text-sm text-slate-400">Zugewiesener Benutzer</span>
-            <select name="user_id" required class="mt-1 w-full rounded-lg border border-slate-700 bg-slate-800 px-3 py-2">
+            <select name="user_id" class="mt-1 w-full rounded-lg border border-slate-700 bg-slate-800 px-3 py-2">
+                <option value="">— Mir selbst (Admin) —</option>
                 @foreach($customers as $c)
                 <option value="{{ $c->id }}" @selected(old('user_id') == $c->id)>{{ $c->name }} ({{ $c->email }})</option>
                 @endforeach
             </select>
+            @if($customers->isEmpty())
+            <p class="mt-1 text-xs text-slate-500">Noch keine Kundenkonten – VM wird deinem Admin-Konto zugeordnet. Kunden unter „Benutzer“ anlegen.</p>
+            @endif
         </label>
         @endif
 
+        @php
+            $behindTraefik = filter_var(old('behind_traefik', '1'), FILTER_VALIDATE_BOOLEAN);
+        @endphp
         <label class="flex items-center gap-2">
-            <input type="hidden" name="behind_traefik" value="0">
+            <input type="checkbox" name="behind_traefik" value="1" @checked($behindTraefik) id="behind_traefik" class="rounded border-slate-600 text-cyan-500">
-            <input type="checkbox" name="behind_traefik" value="1" @checked(old('behind_traefik', true)) id="behind_traefik" class="rounded border-slate-600 text-cyan-500">
             <span class="text-sm">Hinter Traefik (Subdomain + DNS)</span>
         </label>
 
-        <div id="traefik-fields">
+        <div id="traefik-fields" @if(!$behindTraefik) style="display:none" @endif>
             <label class="block">
-                <span class="text-sm text-slate-400">Subdomain</span>
+                <span class="text-sm text-slate-400">Subdomain <span class="text-red-400">*</span></span>
                 <div class="mt-1 flex">
-                    <input name="subdomain" value="{{ old('subdomain') }}" class="w-full rounded-l-lg border border-slate-700 bg-slate-800 px-3 py-2">
+                    <input name="subdomain" id="subdomain" value="{{ old('subdomain') }}" placeholder="meine-vm"
+                           class="w-full rounded-l-lg border border-slate-700 bg-slate-800 px-3 py-2 @error('subdomain') border-red-500 @enderror">
                     <span class="flex items-center rounded-r-lg border border-l-0 border-slate-700 bg-slate-800 px-3 text-sm text-slate-500">.{{ config('hosting.plesk.base_domain') }}</span>
                 </div>
+                @error('subdomain')<p class="mt-1 text-xs text-red-400">{{ $message }}</p>@enderror
+                <p class="mt-1 text-xs text-slate-500">Pflichtfeld bei „Hinter Traefik“ (nur a-z, 0-9, Bindestrich).</p>
             </label>
         </div>
 
@@ -90,7 +99,12 @@
 <script>
 const cb = document.getElementById('behind_traefik');
 const fields = document.getElementById('traefik-fields');
-function toggle() { fields.style.display = cb.checked ? 'block' : 'none'; }
+const subdomain = document.getElementById('subdomain');
+function toggle() {
+    const on = cb.checked;
+    fields.style.display = on ? 'block' : 'none';
+    if (subdomain) subdomain.required = on;
+}
 cb?.addEventListener('change', toggle);
 toggle();
 </script>