Init

OnProfNext.Client/App.razor

@@ -0,0 +1,12 @@
+<Router AppAssembly="@typeof(App).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
+    </Found>
+    <NotFound>
+        <PageTitle>Not found</PageTitle>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p role="alert">Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>

OnProfNext.Client/Layout/MainLayout.razor

@@ -0,0 +1,16 @@
+@inherits LayoutComponentBase
+<div class="page">
+    <div class="sidebar">
+        <NavMenu />
+    </div>
+
+    <main>
+        <div class="top-row px-4">
+            <a href="https://learn.microsoft.com/aspnet/core/" target="_blank">About</a>
+        </div>
+
+        <article class="content px-4">
+            @Body
+        </article>
+    </main>
+</div>

OnProfNext.Client/Layout/MainLayout.razor.css

@@ -0,0 +1,77 @@
+.page {
+    position: relative;
+    display: flex;
+    flex-direction: column;
+}
+
+main {
+    flex: 1;
+}
+
+.sidebar {
+    background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
+}
+
+.top-row {
+    background-color: #f7f7f7;
+    border-bottom: 1px solid #d6d5d5;
+    justify-content: flex-end;
+    height: 3.5rem;
+    display: flex;
+    align-items: center;
+}
+
+    .top-row ::deep a, .top-row ::deep .btn-link {
+        white-space: nowrap;
+        margin-left: 1.5rem;
+        text-decoration: none;
+    }
+
+    .top-row ::deep a:hover, .top-row ::deep .btn-link:hover {
+        text-decoration: underline;
+    }
+
+    .top-row ::deep a:first-child {
+        overflow: hidden;
+        text-overflow: ellipsis;
+    }
+
+@media (max-width: 640.98px) {
+    .top-row {
+        justify-content: space-between;
+    }
+
+    .top-row ::deep a, .top-row ::deep .btn-link {
+        margin-left: 0;
+    }
+}
+
+@media (min-width: 641px) {
+    .page {
+        flex-direction: row;
+    }
+
+    .sidebar {
+        width: 250px;
+        height: 100vh;
+        position: sticky;
+        top: 0;
+    }
+
+    .top-row {
+        position: sticky;
+        top: 0;
+        z-index: 1;
+    }
+
+    .top-row.auth ::deep a:first-child {
+        flex: 1;
+        text-align: right;
+        width: 0;
+    }
+
+    .top-row, article {
+        padding-left: 2rem !important;
+        padding-right: 1.5rem !important;
+    }
+}

OnProfNext.Client/Layout/NavMenu.razor

@@ -0,0 +1,29 @@
+<div class="top-row ps-3 navbar navbar-dark">
+    <div class="container-fluid">
+        <a class="navbar-brand" href="">OnProfNext.Client</a>
+        <button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
+            <span class="navbar-toggler-icon"></span>
+        </button>
+    </div>
+</div>
+
+<div class="@NavMenuCssClass nav-scrollable" @onclick="ToggleNavMenu">
+    <nav class="nav flex-column">
+        <div class="nav-item px-3">
+            <NavLink class="nav-link" href="" Match="NavLinkMatch.All">
+                <span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
+            </NavLink>
+        </div>
+    </nav>
+</div>
+
+@code {
+    private bool collapseNavMenu = true;
+
+    private string? NavMenuCssClass => collapseNavMenu ? "collapse" : null;
+
+    private void ToggleNavMenu()
+    {
+        collapseNavMenu = !collapseNavMenu;
+    }
+}

OnProfNext.Client/Layout/NavMenu.razor.css

@@ -0,0 +1,83 @@
+.navbar-toggler {
+    background-color: rgba(255, 255, 255, 0.1);
+}
+
+.top-row {
+    min-height: 3.5rem;
+    background-color: rgba(0,0,0,0.4);
+}
+
+.navbar-brand {
+    font-size: 1.1rem;
+}
+
+.bi {
+    display: inline-block;
+    position: relative;
+    width: 1.25rem;
+    height: 1.25rem;
+    margin-right: 0.75rem;
+    top: -1px;
+    background-size: cover;
+}
+
+.bi-house-door-fill-nav-menu {
+    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-house-door-fill' viewBox='0 0 16 16'%3E%3Cpath d='M6.5 14.5v-3.505c0-.245.25-.495.5-.495h2c.25 0 .5.25.5.5v3.5a.5.5 0 0 0 .5.5h4a.5.5 0 0 0 .5-.5v-7a.5.5 0 0 0-.146-.354L13 5.793V2.5a.5.5 0 0 0-.5-.5h-1a.5.5 0 0 0-.5.5v1.293L8.354 1.146a.5.5 0 0 0-.708 0l-6 6A.5.5 0 0 0 1.5 7.5v7a.5.5 0 0 0 .5.5h4a.5.5 0 0 0 .5-.5Z'/%3E%3C/svg%3E");
+}
+
+.bi-plus-square-fill-nav-menu {
+    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-plus-square-fill' viewBox='0 0 16 16'%3E%3Cpath d='M2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H2zm6.5 4.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3a.5.5 0 0 1 1 0z'/%3E%3C/svg%3E");
+}
+
+.bi-list-nested-nav-menu {
+    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-list-nested' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M4.5 11.5A.5.5 0 0 1 5 11h10a.5.5 0 0 1 0 1H5a.5.5 0 0 1-.5-.5zm-2-4A.5.5 0 0 1 3 7h10a.5.5 0 0 1 0 1H3a.5.5 0 0 1-.5-.5zm-2-4A.5.5 0 0 1 1 3h10a.5.5 0 0 1 0 1H1a.5.5 0 0 1-.5-.5z'/%3E%3C/svg%3E");
+}
+
+.nav-item {
+    font-size: 0.9rem;
+    padding-bottom: 0.5rem;
+}
+
+    .nav-item:first-of-type {
+        padding-top: 1rem;
+    }
+
+    .nav-item:last-of-type {
+        padding-bottom: 1rem;
+    }
+
+    .nav-item ::deep a {
+        color: #d7d7d7;
+        border-radius: 4px;
+        height: 3rem;
+        display: flex;
+        align-items: center;
+        line-height: 3rem;
+    }
+
+.nav-item ::deep a.active {
+    background-color: rgba(255,255,255,0.37);
+    color: white;
+}
+
+.nav-item ::deep a:hover {
+    background-color: rgba(255,255,255,0.1);
+    color: white;
+}
+
+@media (min-width: 641px) {
+    .navbar-toggler {
+        display: none;
+    }
+
+    .collapse {
+        /* Never collapse the sidebar for wide screens */
+        display: block;
+    }
+
+    .nav-scrollable {
+        /* Allow sidebar to scroll for tall menus */
+        height: calc(100vh - 3.5rem);
+        overflow-y: auto;
+    }
+}

OnProfNext.Client/OnProfNext.Client.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="9.0.9" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="9.0.9" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.9" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\OnProfNext.Shared\OnProfNext.Shared.csproj" />
+  </ItemGroup>
+
+</Project>

OnProfNext.Client/OnProfNext.Client.csproj.user

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>https</ActiveDebugProfile>
+  </PropertyGroup>
+</Project>

OnProfNext.Client/Pages/CreateUser.razor

@@ -0,0 +1,71 @@
+@page "/createuser"
+@using OnProfNext.Client.Services
+@using OnProfNext.Shared.Models
+@inject UserApiService UserService
+@inject NavigationManager Nav
+
+<h3>Neuen Benutzer anlegen</h3>
+
+
+@if (errorMessage is not null)
+{
+    <div class="alert alert-danger alert-dismissible fade show" role="alert">
+        <strong>Fehler:</strong> @errorMessage
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+    </div>
+}
+
+
+<EditForm Model="newUser" OnValidSubmit="HandleValidSubmit">
+    <DataAnnotationsValidator />
+    <ValidationSummary />
+
+    <div class="mb-3">
+        <label>Username</label>
+        <InputText class="form-control" @bind-Value="newUser.Username" />
+    </div>
+
+    <div class="mb-3">
+        <label>E-Mail</label>
+        <InputText class="form-control" @bind-Value="newUser.Email" />
+    </div>
+
+    <div class="mb-3">
+        <label>Passwort</label>
+        <InputText type="password" class="form-control" @bind-Value="newUser.PasswordHash" />
+    </div>
+
+    <div class="mb-3">
+        <label>Vorname</label>
+        <InputText class="form-control" @bind-Value="newUser.FirstName" />
+    </div>
+
+    <div class="mb-3">
+        <label>Nachname</label>
+        <InputText class="form-control" @bind-Value="newUser.LastName" />
+    </div>
+
+    <button class="btn btn-primary" type="submit">Speichern</button>
+</EditForm>
+
+@code {
+    private User newUser = new();
+    private string? errorMessage;
+
+    private async Task HandleValidSubmit()
+    {
+        var result = await UserService.CreateUserAsync(newUser);
+
+        if(!result.Success)
+        {
+            errorMessage = result.Error;
+            return;
+        }
+        else
+        {
+            Nav.NavigateTo("/users");
+        }
+
+
+    }
+}

OnProfNext.Client/Pages/Home.razor

@@ -0,0 +1,7 @@
+@page "/"
+
+<PageTitle>Home</PageTitle>
+
+<h1>Hello, world!</h1>
+
+Welcome to your new app.

OnProfNext.Client/Pages/Users.razor

@@ -0,0 +1,263 @@
+@page "/users"
+@using OnProfNext.Client.Services
+@using OnProfNext.Shared.Models
+@inject UserApiService UserService
+
+<h3 class="mb-3">Benutzerübersicht</h3>
+
+@if (errorMessage is not null)
+{
+    <div class="alert alert-danger">@errorMessage</div>
+}
+else if (users is null)
+{
+    <p><em>Lade Daten...</em></p>
+}
+else if (!users.Any())
+{
+    <p>Keine Benutzer gefunden.</p>
+}
+else
+{
+    <table class="table table-striped">
+        <thead>
+            <tr>
+                <th>Username</th>
+                <th>Vorname</th>
+                <th>Nachname</th>
+                <th>E-Mail</th>
+                <th>Mandant</th>
+            </tr>
+        </thead>
+        <tbody>
+            @foreach (var u in users)
+            {
+                <tr class="user-row" @onclick="() => OpenUserDetail(u.Id)">
+                    <td>@u.Username</td>
+                    <td>@u.FirstName</td>
+                    <td>@u.LastName</td>
+                    <td>@u.Email</td>
+                    <td>@u.MandantId</td>
+                </tr>
+            }
+        </tbody>
+    </table>
+}
+
+
+@if (selectedUser is not null)
+{
+    <div class="modal fade show d-block" tabindex="-1" style="background-color: rgba(0,0,0,0.5);">
+        <div class="modal-dialog modal-dialog-centered">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title">Benutzer bearbeiten</h5>
+                    <button type="button" class="btn-close" @onclick="CloseModal"></button>
+                </div>
+                <div class="modal-body">
+                    <EditForm Model="selectedUser" OnValidSubmit="UpdateUserAsync">
+                        <DataAnnotationsValidator />
+
+                        <div class="mb-3">
+                            <label>Vorname</label>
+                            <InputText class="form-control" @bind-Value="selectedUser.FirstName" />
+                        </div>
+                        <div class="mb-3">
+                            <label>Nachname</label>
+                            <InputText class="form-control" @bind-Value="selectedUser.LastName" />
+                        </div>
+                        <div class="mb-3">
+                            <label>E-Mail</label>
+                            <InputText class="form-control" @bind-Value="selectedUser.Email" />
+                        </div>
+                        <div class="mb-3">
+                            <label>Mandant</label>
+                            <InputNumber class="form-control" @bind-Value="selectedUser.MandantId" />
+                        </div>
+                        <div class="form-check">
+                            <InputCheckbox class="form-check-input" @bind-Value="selectedUser.IsActive" />
+                            <label class="form-check-label">Aktiv</label>
+                        </div>
+
+                        <div class="modal-footer mt-3 d-flex justify-content-between">
+                            <button type="button" class="btn btn-secondary" @onclick="CloseModal">Abbrechen</button>
+                            <div>
+                                <button type="submit" class="btn btn-primary me-2">Speichern</button>
+                                <button type="button" class="btn btn-outline-danger" @onclick="ShowDeleteConfirm">Löschen</button>
+                            </div>
+                        </div>
+
+                    </EditForm>
+                </div>
+            </div>
+        </div>
+    </div>
+}
+
+@if (showDeleteConfirm && selectedUser is not null)
+{
+    <div class="modal fade show d-block" tabindex="-1" style="background-color: rgba(0,0,0,0.6);">
+        <div class="modal-dialog modal-dialog-centered">
+            <div class="modal-content">
+                <div class="modal-header bg-danger text-white">
+                    <h5 class="modal-title">Benutzer löschen</h5>
+                    <button type="button" class="btn-close btn-close-white" @onclick="CloseDeleteConfirm"></button>
+                </div>
+                <div class="modal-body">
+                    <p>
+                        ⚠️ Bist du sicher, dass du den Benutzer
+                        <strong>@selectedUser.Username</strong> löschen möchtest?<br />
+                        Dies kann <strong>nicht rückgängig gemacht</strong> werden.
+                    </p>
+
+                    <div class="mb-3">
+                        <label class="form-label">Zur Bestätigung den Benutzernamen eingeben:</label>
+                        <InputText class="form-control"
+                                   @bind-Value="deleteConfirmInput"
+                                   oninput="@((ChangeEventArgs e) => OnDeleteConfirmInputChanged(e))" />
+
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button class="btn btn-secondary" @onclick="CloseDeleteConfirm">Abbrechen</button>
+                    <button class="btn"
+                            style="@($"background-color: {(IsDeleteConfirmed ? "#dc3545" : "#f5c6cb")}; color: white;")"
+                            disabled="@(IsDeleteConfirmed ? null : true)"
+                            @onclick="ConfirmDeleteUser">
+                        @(IsDeleteConfirmed ? "Endgültig löschen" : "Löschen")
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+}
+
+
+
+
+
+@code {
+    private List<User>? users;
+    private string? errorMessage;
+    private User? selectedUser;
+
+    private bool showDeleteConfirm = false;
+    private string deleteConfirmInput = string.Empty;
+    private bool IsDeleteConfirmed => selectedUser is not null && deleteConfirmInput == selectedUser.Username;
+
+    protected override async Task OnInitializedAsync()
+    {
+        var result = await UserService.GetUsersAsync();
+
+        if (!result.Success)
+        {
+            errorMessage = result.Error;
+            return;
+        }
+
+        users = result.Data;
+
+    }
+
+    private void OpenUserDetail(int id)
+    {
+        selectedUser = users?.FirstOrDefault(u => u.Id == id);
+    }
+
+    private void CloseModal()
+    {
+        selectedUser = null;
+        showDeleteConfirm = false;
+        deleteConfirmInput = string.Empty;
+    }
+
+    private void OnDeleteConfirmInputChanged(ChangeEventArgs e)
+    {
+        deleteConfirmInput = e.Value?.ToString() ?? string.Empty;
+        StateHasChanged();
+    }
+
+    private void ShowDeleteConfirm()
+    {
+        showDeleteConfirm = true;
+        deleteConfirmInput = string.Empty;
+    }
+
+    private void CloseDeleteConfirm()
+    {
+        showDeleteConfirm = false;
+        deleteConfirmInput = string.Empty;
+    }
+
+    //Delete Action
+
+    private async Task ConfirmDeleteUser()
+    {
+        if(selectedUser is null)
+        {
+            return;
+        }
+
+        var result = await UserService.DeleteUserAsync(selectedUser.Id);
+
+        if(!result.Success)
+        {
+            errorMessage = result.Error;
+            return;
+        }
+
+        users?.Remove(selectedUser);
+        CloseModal();
+        StateHasChanged();
+    }
+
+    private async Task UpdateUserAsync()
+    {
+        if(selectedUser is null)
+        {
+            return;
+        }
+
+        var result = await UserService.UpdateUserAsync(selectedUser);
+        if(!result.Success)
+        {
+            errorMessage = result.Error;
+            return;
+        }
+
+        //Modal schließen und Liste aktualisieren
+        CloseModal();
+        var updated = await UserService.GetUsersAsync();
+        users = updated.Data;
+        StateHasChanged();
+    }
+
+
+}
+
+
+<style>
+    tr.user-row {
+        transition: all 0.2s ease-in-out;
+        cursor: pointer;
+    }
+
+    tr.user-row:hover {
+        transform: scale(1.01);
+        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
+        background-color: #f8f9fa;
+    }
+
+    .modal-backdrop {
+        background-color: rgba(0, 0, 0, 0.6);
+    }
+
+    .modal-content {
+        border-radius: 0.75rem;
+    }
+
+    .btn-outline-danger:hover {
+        background-color: #dc3545;
+        color: #fff;
+    }
+</style>

OnProfNext.Client/Program.cs

@@ -0,0 +1,19 @@
+using Microsoft.AspNetCore.Components.Web;
+using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
+using OnProfNext.Client;
+using OnProfNext.Client.Services;
+using Microsoft.Extensions.Http; 
+using System.Net.Http; 
+
+var builder = WebAssemblyHostBuilder.CreateDefault(args);
+builder.RootComponents.Add<App>("#app");
+builder.RootComponents.Add<HeadOutlet>("head::after");
+
+builder.Services.AddScoped<UserApiService>();
+
+builder.Services.AddHttpClient<UserApiService>(client =>
+{
+    client.BaseAddress = new Uri("https://localhost:7271/"); 
+});
+
+await builder.Build().RunAsync();

OnProfNext.Client/Properties/launchSettings.json

@@ -0,0 +1,25 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+      "applicationUrl": "http://localhost:5223",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+      "applicationUrl": "https://localhost:7082;http://localhost:5223",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

OnProfNext.Client/Services/UserApiService.cs

@@ -0,0 +1,95 @@
+using OnProfNext.Shared.Models;
+using System.Net.Http.Json;
+
+namespace OnProfNext.Client.Services
+{
+    public class UserApiService
+    {
+        private readonly HttpClient _httpClient;
+
+        public UserApiService(HttpClient httpClient)
+        {
+            _httpClient = httpClient;
+        }
+
+        public async Task<(bool Success, List<User>? Data, string? Error)> GetUsersAsync()
+        {
+            try
+            {
+                var users = await _httpClient.GetFromJsonAsync<List<User>>("api/users");
+                return (true, users ?? new List<User>(), null);
+            }
+            catch (HttpRequestException ex)
+            {
+                return (false, null, "Keine Verbindung zum Server. Bitte später erneut versuchen.");
+            }
+            catch (Exception ex)
+            {
+                return(false, null, $"Unerwarteter Fehler: {ex.Message}"); 
+            }
+        }
+
+        public async Task<(bool Success, string? Error)> CreateUserAsync(User user)
+        {
+            try
+            {
+                var response = await _httpClient.PostAsJsonAsync("api/users", user);
+                if (!response.IsSuccessStatusCode)
+                {
+                    return (false, $"Fehler beim Anlegen: {response.ReasonPhrase}"); 
+                }
+
+                return (true, null);
+            }
+            catch (HttpRequestException)
+            {
+                return (false, "Server nicht erreichbar.");
+            }
+        }
+
+
+        public async Task<(bool Success, string? Error)> UpdateUserAsync(User user)
+        {
+            try
+            {
+                var response = await _httpClient.PutAsJsonAsync($"api/users/{user.Id}", user);
+
+                if(!response.IsSuccessStatusCode)
+                {
+                    return (false, $"Fehler beim Aktualisieren: {response.ReasonPhrase}");
+                }
+                return (true, null);
+            }
+
+            catch (HttpRequestException)
+            {
+                return (false, "Server nicht erreichbar.");
+            }
+            catch (Exception ex)
+            {
+                return (false, ex.Message);
+            }
+        }
+
+        public async Task<(bool Success, string? Error)> DeleteUserAsync(int userId)
+        {
+            try
+            {
+                var response = await _httpClient.DeleteAsync($"api/users/{userId}");
+                if (!response.IsSuccessStatusCode)
+                {
+                    return (false, $"Fehler beim Löschen: {response.ReasonPhrase}");
+                }
+                return (true, null);
+            }
+            catch (HttpRequestException)
+            {
+                return (false, "Server nicht erreichbar.");
+            }
+            catch (Exception ex)
+            {
+                return (false, ex.Message);
+            }
+        }
+    }
+}

OnProfNext.Client/_Imports.razor

@@ -0,0 +1,10 @@
+@using System.Net.Http
+@using System.Net.Http.Json
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using Microsoft.AspNetCore.Components.Web.Virtualization
+@using Microsoft.AspNetCore.Components.WebAssembly.Http
+@using Microsoft.JSInterop
+@using OnProfNext.Client
+@using OnProfNext.Client.Layout