fix: render admin login as static form

TaxBaik.Web/Components/Admin/Pages/Login.razor

@@ -1,13 +1,8 @@
 @page "/admin/login"
-@using System.ComponentModel.DataAnnotations
 @layout TaxBaik.Web.Components.Admin.Layout.BlankLayout
-@rendermode @(new InteractiveServerRenderMode(prerender: false))
 @attribute [AllowAnonymous]
-@inject IApiClient ApiClient
-@inject NavigationManager NavigationManager
-@inject CustomAuthenticationStateProvider AuthStateProvider
-@inject IJSRuntime Js
 @inject ILocalStorageService LocalStorageService
+@inject IJSRuntime Js
 
 <PageTitle>로그인</PageTitle>
 
@@ -15,54 +10,39 @@
     <MudPaper Class="pa-8" Elevation="3" Style="width: 100%; max-width: 400px;">
         <MudText Typo="Typo.h4" Class="mb-6 text-center">관리자 로그인</MudText>
 
-        <form id="admin-login-form">
+        <form id="admin-login-form" method="post" action="/taxbaik/admin/login">
-            <InputText class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
+            <input class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
-                       style="width: 100%; min-height: 56px; padding: 16px 14px;"
+                   style="width: 100%; min-height: 56px; padding: 16px 14px;"
-                       placeholder="사용자명"
+                   placeholder="사용자명"
-                       autocomplete="username"
+                   autocomplete="username"
-                       @bind-Value="model.Username"
+                   name="username"
-                       name="username" />
+                   value="@model.Username" />
 
-            <InputText type="password"
+            <input type="password"
-                       class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
+                   class="mud-input mud-input-outlined mud-input-root mud-input-root-adorned-start mb-4"
-                       style="width: 100%; min-height: 56px; padding: 16px 14px;"
+                   style="width: 100%; min-height: 56px; padding: 16px 14px;"
-                       placeholder="비밀번호"
+                   placeholder="비밀번호"
-                       autocomplete="current-password"
+                   autocomplete="current-password"
-                       @bind-Value="model.Password"
+                   name="password" />
-                       name="password" />
 
             <div class="mb-4">
-                <InputCheckbox class="mud-checkbox" @bind-Value="model.RememberMe" name="rememberMe" />
+                <input class="mud-checkbox" type="checkbox" name="rememberMe" />
                 <label style="margin-left: 8px; cursor: pointer;">아이디 저장</label>
             </div>
 
-            @if (!string.IsNullOrEmpty(errorMessage))
+            <div class="mud-alert mud-alert-filled-error mb-4 login-error-message" style="display:none;">로그인 중 오류가 발생했습니다.</div>
-            {
-                <MudAlert Severity="Severity.Error" Class="mb-4">@errorMessage</MudAlert>
-            }
 
             <button type="submit"
                     class="mud-button-root mud-button mud-button-filled mud-button-filled-primary mud-elevation-0"
-                    style="width: 100%; min-height: 52px; border: 0; border-radius: 4px; color: white;"
+                    style="width: 100%; min-height: 52px; border: 0; border-radius: 4px; color: white;">
-                    disabled="@isLoading">
+                <span>로그인</span>
-                @if (isLoading)
-                {
-                    <MudProgressCircular Size="Size.Small" Indeterminate="true" Class="mr-2" />
-                    <span>로그인 중...</span>
-                }
-                else
-                {
-                    <span>로그인</span>
-                }
             </button>
         </form>
     </MudPaper>
 </MudContainer>
 
 @code {
-    private bool isLoading = false;
+    private readonly LoginModel model = new();
-    private string errorMessage = "";
-    private LoginModel model = new();
     private const string RememberedUsernameKey = "admin-remembered-username";
 
     protected override async Task OnInitializedAsync()
@@ -73,90 +53,25 @@
             if (!string.IsNullOrEmpty(remembered))
             {
                 model.Username = remembered;
-                model.RememberMe = true;
             }
         }
         catch
         {
-            // LocalStorage not available in pre-render
+            // LocalStorage may be unavailable during prerender.
         }
     }
 
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
+        {
             await Js.InvokeVoidAsync("taxbaikAdminSession.syncRouteClass");
-    }
+            await Js.InvokeVoidAsync("taxbaikAdminSession.bindLoginForm");
-
-    private async Task HandleLogin()
-    {
-        if (isLoading)
-            return;
-
-        isLoading = true;
-        errorMessage = "";
-
-        try
-        {
-            var request = new { model.Username, model.Password };
-            var response = await ApiClient.PostAsync<LoginResponse>("auth/login", request);
-
-            if (response?.AccessToken == null || response?.RefreshToken == null)
-            {
-                errorMessage = "사용자명 또는 비밀번호가 올바르지 않습니다.";
-                isLoading = false;
-                return;
-            }
-
-            if (model.RememberMe)
-            {
-                await LocalStorageService.SetItemAsStringAsync(RememberedUsernameKey, model.Username);
-            }
-            else
-            {
-                await LocalStorageService.RemoveItemAsync(RememberedUsernameKey);
-            }
-
-            await ApiClient.SetAuthToken(response.AccessToken);
-            await AuthStateProvider.LoginAsync(response.AccessToken, response.RefreshToken, response.ExpiresIn);
-            NavigationManager.NavigateTo(GetReturnUrl(), forceLoad: false);
         }
-        catch
-        {
-            errorMessage = "로그인 중 오류가 발생했습니다.";
-            isLoading = false;
-        }
-    }
-
-    private class LoginResponse
-    {
-        public string AccessToken { get; set; } = "";
-        public string RefreshToken { get; set; } = "";
-        public int ExpiresIn { get; set; }
     }
 
     private class LoginModel
     {
         public string Username { get; set; } = "";
-        public string Password { get; set; } = "";
-        public bool RememberMe { get; set; }
-    }
-
-    private string GetReturnUrl()
-    {
-        var uri = NavigationManager.ToAbsoluteUri(NavigationManager.Uri);
-        if (!Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(uri.Query).TryGetValue("returnUrl", out var returnUrl)
-            || string.IsNullOrWhiteSpace(returnUrl))
-        {
-            return "/taxbaik/admin/dashboard";
-        }
-
-        var value = returnUrl.ToString();
-        if (!value.StartsWith("admin", StringComparison.OrdinalIgnoreCase))
-        {
-            return "/taxbaik/admin/dashboard";
-        }
-
-        return $"/taxbaik/{value.TrimStart('/')}";
     }
 }