Finanzverwaltung und Saison-System

Neues Einnahmen-/Ausgaben-Modul mit Kategorie-Filter, Monats-Charts und
Saison-basierter Filterung. Saison-Verwaltung im Admin-Bereich mit
Möglichkeit zum Wechsel der aktuellen Saison.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Controllers/Admin/SeasonController.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\Finance;
+use App\Models\Season;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+
+class SeasonController extends Controller
+{
+    public function store(Request $request): RedirectResponse
+    {
+        $validated = $request->validate([
+            'name' => ['required', 'string', 'max:50'],
+            'start_date' => ['required', 'date'],
+            'end_date' => ['required', 'date', 'after:start_date'],
+            'is_current' => ['nullable', 'boolean'],
+        ]);
+
+        $validated['is_current'] = !empty($validated['is_current']);
+
+        if ($validated['is_current']) {
+            Season::where('is_current', true)->update(['is_current' => false]);
+        }
+
+        Season::create($validated);
+
+        return redirect()->route('admin.settings.edit', ['tab' => 'seasons'])
+            ->with('success', __('admin.season_created'));
+    }
+
+    public function update(Request $request, Season $season): RedirectResponse
+    {
+        $validated = $request->validate([
+            'name' => ['required', 'string', 'max:50'],
+            'start_date' => ['required', 'date'],
+            'end_date' => ['required', 'date', 'after:start_date'],
+            'is_current' => ['nullable', 'boolean'],
+        ]);
+
+        $validated['is_current'] = !empty($validated['is_current']);
+
+        if ($validated['is_current']) {
+            Season::where('is_current', true)->where('id', '!=', $season->id)->update(['is_current' => false]);
+        }
+
+        $season->update($validated);
+
+        return redirect()->route('admin.settings.edit', ['tab' => 'seasons'])
+            ->with('success', __('admin.season_updated'));
+    }
+
+    public function destroy(Season $season): RedirectResponse
+    {
+        $hasData = Finance::whereBetween('date', [$season->start_date, $season->end_date])->exists();
+
+        if ($hasData) {
+            return redirect()->route('admin.settings.edit', ['tab' => 'seasons'])
+                ->with('error', __('admin.season_has_data'));
+        }
+
+        $season->delete();
+
+        return redirect()->route('admin.settings.edit', ['tab' => 'seasons'])
+            ->with('success', __('admin.season_deleted'));
+    }
+}