Add club settings and use club name in PDF exports

src/Duempelkas.App/Pages/Dashboard.razor

@@ -4,9 +4,14 @@
 <div class="container-fluid">
     <div class="d-flex justify-content-between align-items-center mb-4">
         <h2>Übersicht</h2>
-        <button class="btn btn-primary" @onclick="() => showAddAccount = true">
+        <div class="d-flex gap-2">
-            <i class="bi bi-plus-lg"></i> Neues Konto
+            <button class="btn btn-primary" @onclick="() => showAddAccount = true">
-        </button>
+                <i class="bi bi-plus-lg"></i> Neues Konto
+            </button>
+            <a class="btn btn-outline-secondary" href="/settings">
+                <i class="bi bi-gear"></i> Einstellungen
+            </a>
+        </div>
     </div>
 
     @if (accounts == null)

src/Duempelkas.App/Pages/Settings.razor

@@ -0,0 +1,50 @@
+@page "/settings"
+@inject ISettingsService SettingsService
+
+<div class="container-fluid">
+    <div class="d-flex justify-content-between align-items-center mb-4">
+        <h2>Einstellungen</h2>
+        <a class="btn btn-outline-secondary" href="/">
+            <i class="bi bi-arrow-left"></i> Zurück
+        </a>
+    </div>
+
+    <div class="card">
+        <div class="card-body">
+            <h5 class="card-title mb-3">Verein</h5>
+            <div class="mb-3">
+                <label class="form-label">Name des Vereins</label>
+                <input type="text" class="form-control" @bind="clubName" @bind:event="oninput"
+                       placeholder="Mein Verein" />
+                <div class="form-text">Wird im PDF-Auszug als Kopfzeile verwendet.</div>
+            </div>
+            <button class="btn btn-primary" @onclick="Save" disabled="@saving">
+                <i class="bi bi-check-lg"></i> Speichern
+            </button>
+            @if (saved)
+            {
+                <span class="text-success ms-2"><i class="bi bi-check-circle"></i> Gespeichert</span>
+            }
+        </div>
+    </div>
+</div>
+
+@code {
+    private string clubName = string.Empty;
+    private bool saving;
+    private bool saved;
+
+    protected override async Task OnInitializedAsync()
+    {
+        clubName = await SettingsService.GetClubNameAsync() ?? string.Empty;
+    }
+
+    private async Task Save()
+    {
+        saving = true;
+        saved = false;
+        await SettingsService.SetClubNameAsync(clubName);
+        saved = true;
+        saving = false;
+    }
+}

src/Duempelkas.App/Services/ISettingsService.cs

@@ -0,0 +1,7 @@
+namespace Duempelkas.App.Services;
+
+public interface ISettingsService
+{
+    Task<string?> GetClubNameAsync();
+    Task SetClubNameAsync(string? clubName);
+}

src/Duempelkas.Infrastructure/DependencyInjection.cs

@@ -18,6 +18,7 @@ public static class DependencyInjection
         services.AddScoped<IBalanceQueryService, BalanceQueryService>();
         services.AddScoped<IPdfStatementService, PdfStatementService>();
         services.AddScoped<IFileSaveService, FileSaveService>();
+        services.AddSingleton<ISettingsService, SettingsService>();
 
         return services;
     }

src/Duempelkas.Infrastructure/Services/PdfStatementService.cs

@@ -15,13 +15,15 @@ public class PdfStatementService : IPdfStatementService
     private readonly FinanceDbContext _db;
     private readonly IEntryService _entryService;
     private readonly IBalanceQueryService _balanceQueryService;
+    private readonly ISettingsService _settingsService;
     private static readonly CultureInfo DeLocale = new("de-DE");
 
-    public PdfStatementService(FinanceDbContext db, IEntryService entryService, IBalanceQueryService balanceQueryService)
+    public PdfStatementService(FinanceDbContext db, IEntryService entryService, IBalanceQueryService balanceQueryService, ISettingsService settingsService)
     {
         _db = db;
         _entryService = entryService;
         _balanceQueryService = balanceQueryService;
+        _settingsService = settingsService;
     }
 
     public async Task<byte[]> GenerateStatementAsync(int accountId, bool currentYearOnly)
@@ -31,6 +33,7 @@ public class PdfStatementService : IPdfStatementService
 
         var entries = await _entryService.GetEntriesAsync(accountId, currentYearOnly);
         var balance = await _balanceQueryService.GetAccountBalanceAsync(accountId);
+        var clubName = await _settingsService.GetClubNameAsync() ?? "Mein Verein";
 
         var title = currentYearOnly
             ? $"{account.Name} – Auszug {DateTime.Now.Year}"
@@ -47,7 +50,7 @@ public class PdfStatementService : IPdfStatementService
 
                 page.Header().Column(col =>
                 {
-                    col.Item().Text(account.Name).Bold().FontSize(20);
+                    col.Item().Text(clubName).Bold().FontSize(20);
                     col.Item().Text(title).FontSize(14).FontColor(Colors.Grey.Darken1);
                     col.Item().PaddingTop(5).Text($"Erstellt am: {DateTime.Now:dd.MM.yyyy}").FontSize(8).FontColor(Colors.Grey.Medium);
                     col.Item().PaddingTop(10).LineHorizontal(1).LineColor(Colors.Grey.Lighten2);

src/Duempelkas.Infrastructure/Services/SettingsService.cs

@@ -0,0 +1,55 @@
+using System.Text.Json;
+using Duempelkas.App.Services;
+
+namespace Duempelkas.Infrastructure.Services;
+
+public class SettingsService : ISettingsService
+{
+    private static readonly string SettingsPath = Path.Combine(
+        Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+        "Duempelkas", "settings.json");
+
+    private static readonly JsonSerializerOptions JsonOptions = new() { WriteIndented = true };
+
+    public async Task<string?> GetClubNameAsync()
+    {
+        var settings = await LoadAsync();
+        return settings.ClubName;
+    }
+
+    public async Task SetClubNameAsync(string? clubName)
+    {
+        var settings = await LoadAsync();
+        settings.ClubName = string.IsNullOrWhiteSpace(clubName) ? null : clubName.Trim();
+        await SaveAsync(settings);
+    }
+
+    private static async Task<AppSettings> LoadAsync()
+    {
+        if (!File.Exists(SettingsPath))
+            return new AppSettings();
+
+        try
+        {
+            var json = await File.ReadAllTextAsync(SettingsPath);
+            return JsonSerializer.Deserialize<AppSettings>(json) ?? new AppSettings();
+        }
+        catch
+        {
+            return new AppSettings();
+        }
+    }
+
+    private static async Task SaveAsync(AppSettings settings)
+    {
+        var dir = Path.GetDirectoryName(SettingsPath)!;
+        Directory.CreateDirectory(dir);
+        var json = JsonSerializer.Serialize(settings, JsonOptions);
+        await File.WriteAllTextAsync(SettingsPath, json);
+    }
+
+    private class AppSettings
+    {
+        public string? ClubName { get; set; }
+    }
+}