Add sorting functionality for prospects with new ProspectSortControl component

FoodsharingSiegen.Server/Controls/ProspectSortControl.razor

@@ -0,0 +1,17 @@
+@using FoodsharingSiegen.Contracts.Enums
+
+<Button Color="Color.Primary"
+        Width="Width.Px(50)"
+        Height="Height.Px(50)"
+        title="Sortieren"
+        style="min-width: auto;"
+        Clicked="@OpenSortDialogAsync">
+    <i class="fa-solid fa-sort"></i>
+</Button>
+
+<div class="badge-row mt-2">
+    @if (HasCustomSort)
+    {
+        <Badge Color="Color.Primary" Closable="true" CloseClicked="@EventCallback.Factory.Create(this, ResetSortAsync)">@CurrentSortText</Badge>
+    }
+</div>

FoodsharingSiegen.Server/Controls/ProspectSortControl.razor.cs

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+using Blazorise;
+using FoodsharingSiegen.Contracts.Entity;
+using FoodsharingSiegen.Contracts.Enums;
+using FoodsharingSiegen.Server.Data.Service;
+using FoodsharingSiegen.Server.Dialogs;
+using FoodsharingSiegen.Server.Service;
+using Microsoft.AspNetCore.Components;
+
+namespace FoodsharingSiegen.Server.Controls;
+
+public partial class ProspectSortControl
+{
+    [Inject] private IModalService ModalService { get; set; } = null!;
+    
+    [Inject] private LocalStorageService LocalStorageService { get; set; } = null!;
+
+    [Parameter]
+    public ProspectSortOption CurrentSort { get; set; } = ProspectSortOption.NameAscending;
+
+    [Parameter]
+    public EventCallback<ProspectSortOption> CurrentSortChanged { get; set; }
+
+    [Parameter]
+    public EventCallback OnSortChanged { get; set; }
+
+    [Parameter]
+    public string? StorageKey { get; set; }
+
+    protected override async Task OnInitializedAsync()
+    {
+        if (!string.IsNullOrEmpty(StorageKey))
+        {
+            var savedSort = await LocalStorageService.GetItem<ProspectSortOption?>(StorageKey);
+            if (savedSort.HasValue)
+            {
+                CurrentSort = savedSort.Value;
+                await CurrentSortChanged.InvokeAsync(CurrentSort);
+            }
+        }
+        await base.OnInitializedAsync();
+    }
+
+    private async Task OpenSortDialogAsync()
+    {
+        await ProspectSortDialog.ShowAsync(ModalService, CurrentSort, async option =>
+        {
+            await UpdateSortAsync(option);
+        });
+    }
+
+    private bool HasCustomSort => CurrentSort != ProspectSortOption.NameAscending;
+
+    private string CurrentSortText => CurrentSort switch
+    {
+        ProspectSortOption.NameDescending => "Sortierung: Name (absteigend)",
+        ProspectSortOption.ModifiedAscending => "Sortierung: Zuletzt geändert (aufsteigend)",
+        ProspectSortOption.ModifiedDescending => "Sortierung: Zuletzt geaendert (absteigend)",
+        _ => string.Empty
+    };
+
+    private async Task ResetSortAsync()
+    {
+        await UpdateSortAsync(ProspectSortOption.NameAscending);
+    }
+
+    private async Task UpdateSortAsync(ProspectSortOption option)
+    {
+        CurrentSort = option;
+        
+        if (!string.IsNullOrEmpty(StorageKey))
+        {
+            await LocalStorageService.SetItem(StorageKey, CurrentSort);
+        }
+
+        await CurrentSortChanged.InvokeAsync(CurrentSort);
+        await OnSortChanged.InvokeAsync();
+    }
+}