Add confirmed account deletion to the admin account list

docs-website/docs/admin-panel/accounts.md

@@ -69,6 +69,8 @@ new password, use the account edit page and set a new password there.
 
 ## Deleting accounts
 
-Accounts can be deleted from the generic edit page. Consider banning instead —
+Use **Delete** in the account list and confirm the prompt. This permanently
+removes the account and its dependent characters, items, vault, and other account
+data. Disconnect an online account before deleting it. Consider banning instead —
 a banned account keeps the character names reserved and keeps the history of what
 happened on your server.

src/Web/AdminPanel/Pages/Accounts.razor

@@ -35,6 +35,7 @@
             <td>@item.EMail</td>
             <td>
                 <NavLink href="@($"edit-account/{item.GetId()}/{typeof(Account).FullName}/{item.GetId()}")" class="btn btn-primary"><span class="oi oi-pencil" aria-hidden="true"></span> Edit</NavLink>
+                <button type="button" class="btn btn-danger ms-1" @onclick="@(() => this._accountService.DeleteAsync(item))">@Resources.Delete</button>
             </td>
         </ItemTemplate>
         <TableFooter>

src/Web/Shared/Services/AccountService.cs

@@ -8,6 +8,7 @@ namespace MUnique.OpenMU.Web.Shared.Services;
 using System.Diagnostics.CodeAnalysis;
 using MUnique.OpenMU.DataModel.Entities;
 using MUnique.OpenMU.Persistence;
+using MUnique.OpenMU.Web.Shared;
 using MUnique.OpenMU.Web.Shared.Components;
 using MUnique.OpenMU.Web.Shared.Components.Form.Modal;
 using MUnique.OpenMU.Web.Shared.Components.Modal;
@@ -20,6 +21,7 @@ public class AccountService : IDataService<Account>, ISupportDataChangedNotifica
 {
     private readonly IDataSource<Account> _dataSource;
     private readonly IModalService _modalService;
+    private readonly IPersistenceContextProvider _contextProvider;
     private readonly Debouncer _debouncer = new(300);
 
     private string _searchFilter = string.Empty;
@@ -29,10 +31,12 @@ public class AccountService : IDataService<Account>, ISupportDataChangedNotifica
     /// </summary>
     /// <param name="dataSource">The player context.</param>
     /// <param name="modalService">The modal service.</param>
-    public AccountService(IDataSource<Account> dataSource, IModalService modalService)
+    /// <param name="contextProvider">The persistence context provider.</param>
+    public AccountService(IDataSource<Account> dataSource, IModalService modalService, IPersistenceContextProvider contextProvider)
     {
         this._dataSource = dataSource;
         this._modalService = modalService;
+        this._contextProvider = contextProvider;
     }
 
     /// <inheritdoc />
@@ -117,6 +121,35 @@ public async ValueTask UnbanAsync(Account account)
         await context.SaveChangesAsync().ConfigureAwait(false);
     }
 
+    /// <summary>
+    /// Deletes an account and its dependent data after confirmation.
+    /// </summary>
+    /// <param name="account">The account to delete.</param>
+    /// <returns>Whether the account was deleted.</returns>
+    public async Task<bool> DeleteAsync(Account account)
+    {
+        var confirmed = await this._modalService.ShowQuestionAsync(
+            "Delete account",
+            $"Permanently delete account '{account.LoginName}' and all its characters, items, and related data?").ConfigureAwait(false);
+        if (!confirmed)
+        {
+            return false;
+        }
+
+        using var context = this._contextProvider.CreateNewContext();
+        var storedAccount = await context.GetByIdAsync<Account>(account.GetId()).ConfigureAwait(false);
+        if (storedAccount is null)
+        {
+            return false;
+        }
+
+        // DeleteAsync also removes aggregate members such as the vault; database cascades remove descendants.
+        await context.DeleteAsync(storedAccount).ConfigureAwait(false);
+        await context.SaveChangesAsync().ConfigureAwait(false);
+        this.DataChanged?.Invoke(this, EventArgs.Empty);
+        return true;
+    }
+
     /// <summary>
     /// Creates a new Account in a modal dialog.
     /// </summary>
@@ -190,4 +223,4 @@ private class AccountCreationParameters
         [Display(ResourceType = typeof(Resources), Name = nameof(Resources.AccountCreationParameters_State_Name))]
         public AccountState State { get; set; }
     }
-}
+}