From 33c631aaf67141968cc89ff9ffcb0f2e9d7c6d87 Mon Sep 17 00:00:00 2001
From: Andre Beging <github@beging.de>
Date: Mon, 24 Jan 2022 10:15:33 +0100
Subject: [PATCH] Users page and users service

---
 FoodsharingSiegen.Contracts/Entity/dfg.cs     |   7 -
 .../OperationResult.cs                        | 138 ++++++++++++++++++
 .../Data/Service/ServiceBase.cs               |  21 +++
 .../Data/Service/UserService.cs               |  73 +++++++++
 FoodsharingSiegen.Server/Pages/Index.razor    |   9 --
 FoodsharingSiegen.Server/Pages/Users.razor    |  72 +++++++++
 FoodsharingSiegen.Server/Pages/Users.razor.cs |  56 +++++++
 FoodsharingSiegen.Server/Program.cs           |  15 +-
 FoodsharingSiegen.Server/Shared/NavMenu.razor |  13 +-
 .../Shared/NavMenu.razor.css                  |   6 +-
 10 files changed, 380 insertions(+), 30 deletions(-)
 delete mode 100644 FoodsharingSiegen.Contracts/Entity/dfg.cs
 create mode 100644 FoodsharingSiegen.Contracts/OperationResult.cs
 create mode 100644 FoodsharingSiegen.Server/Data/Service/ServiceBase.cs
 create mode 100644 FoodsharingSiegen.Server/Data/Service/UserService.cs
 delete mode 100644 FoodsharingSiegen.Server/Pages/Index.razor
 create mode 100644 FoodsharingSiegen.Server/Pages/Users.razor
 create mode 100644 FoodsharingSiegen.Server/Pages/Users.razor.cs

diff --git a/FoodsharingSiegen.Contracts/Entity/dfg.cs b/FoodsharingSiegen.Contracts/Entity/dfg.cs
deleted file mode 100644
index 79a9271..0000000
--- a/FoodsharingSiegen.Contracts/Entity/dfg.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace FoodsharingSiegen.Contracts.Entity
-{
-    public class dfg
-    {
-        
-    }
-}
\ No newline at end of file
diff --git a/FoodsharingSiegen.Contracts/OperationResult.cs b/FoodsharingSiegen.Contracts/OperationResult.cs
new file mode 100644
index 0000000..84085de
--- /dev/null
+++ b/FoodsharingSiegen.Contracts/OperationResult.cs
@@ -0,0 +1,138 @@
+namespace FoodsharingSiegen.Contracts
+{
+    #region OperationResult<T>
+
+    ////////////////////////////////////////////////////////////////////////////////////////////////////
+    /// <summary>   Encapsulates the result of an operation. </summary>
+    ///
+    /// <remarks>   A Beging, 20.10.2021. </remarks>
+    ///
+    /// <typeparam name="T">    Generic type parameter. </typeparam>
+    ////////////////////////////////////////////////////////////////////////////////////////////////////
+    public class OperationResult<T>
+    {
+        #region Public Properties
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Gets or sets the exception. </summary>
+        ///
+        /// <value> The exception. </value>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public Exception? Exception { get; set; }
+
+        /// <summary> Returns an error message if the exception is set </summary>
+        public string ErrorMessage
+        {
+            get
+            {
+                if (Success) return string.Empty;
+                return Exception != null ? Exception.GetBaseException().Message : "Fehler";
+            }
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Gets or sets a value indicating whether the success. </summary>
+        ///
+        /// <value> True if success, false if not. </value>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public bool Success { get; set; } = true;
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Gets or sets the data. </summary>
+        ///
+        /// <value> The data. </value>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public T? Data { get; set; }
+
+        #endregion Public Properties
+
+        #region Constructors
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Constructor. </summary>
+        ///
+        /// <remarks>   A Beging, 20.10.2021. </remarks>
+        ///
+        /// <param name="exception">    The exception. </param>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public OperationResult(Exception exception)
+        {
+            Success = false;
+            Exception = exception;
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Constructor. </summary>
+        ///
+        /// <remarks>   A Beging, 20.10.2021. </remarks>
+        ///
+        /// <param name="data"> The data. </param>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public OperationResult(T data)
+        {
+            Data = data;
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Default constructor. </summary>
+        ///
+        /// <remarks>   A Beging, 22.10.2021. </remarks>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public OperationResult()
+        {
+            
+        }
+
+        #endregion Constructors
+    }
+
+    #endregion OperationResult<T>
+
+    #region OperationResult
+
+    ////////////////////////////////////////////////////////////////////////////////////////////////////
+    /// <summary>   Encapsulates the result of an operation. </summary>
+    ///
+    /// <remarks>   A Beging, 20.10.2021. </remarks>
+    ////////////////////////////////////////////////////////////////////////////////////////////////////
+    public class OperationResult : OperationResult<object>
+    {
+        #region Constructors
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Constructor. </summary>
+        ///
+        /// <remarks>   A Beging, 20.10.2021. </remarks>
+        ///
+        /// <param name="exception">    The exception. </param>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public OperationResult(Exception exception) : base(exception)
+        {
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Constructor. </summary>
+        ///
+        /// <remarks>   A Beging, 20.10.2021. </remarks>
+        ///
+        /// <param name="data"> True to data. </param>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public OperationResult(bool data) : base(data)
+        {
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Default constructor. </summary>
+        ///
+        /// <remarks>   A Beging, 22.10.2021. </remarks>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public OperationResult()
+        {
+            
+        }
+
+        #endregion Constructors
+    }
+
+    #endregion OperationResult
+}
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Data/Service/ServiceBase.cs b/FoodsharingSiegen.Server/Data/Service/ServiceBase.cs
new file mode 100644
index 0000000..4af4a00
--- /dev/null
+++ b/FoodsharingSiegen.Server/Data/Service/ServiceBase.cs
@@ -0,0 +1,21 @@
+namespace FoodsharingSiegen.Server.Data.Service
+{
+    public class ServiceBase
+    {
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Database Context </summary>
+        ///
+        /// <value> The context. </value>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        protected FsContext Context { get; }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Specialised constructor for use only by derived class. </summary>
+        ///
+        /// <remarks>   A Beging, 20.10.2021. </remarks>
+        ///
+        /// <param name="context">  The context. </param>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        protected ServiceBase(FsContext context) => Context = context;
+    }
+}
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Data/Service/UserService.cs b/FoodsharingSiegen.Server/Data/Service/UserService.cs
new file mode 100644
index 0000000..9f8c9d8
--- /dev/null
+++ b/FoodsharingSiegen.Server/Data/Service/UserService.cs
@@ -0,0 +1,73 @@
+using FoodsharingSiegen.Contracts;
+using FoodsharingSiegen.Contracts.Entity;
+using Microsoft.EntityFrameworkCore;
+
+namespace FoodsharingSiegen.Server.Data.Service
+{
+    public class UserService : ServiceBase
+    {
+        public UserService(FsContext context) : base(context)
+        {
+            
+        }
+
+        public async Task<OperationResult<User>> AddUserAsync(User user)
+        {
+            try
+            {
+                if (await Context.Users.AnyAsync(x => x.Mail.ToLower().Equals(user.Mail.ToLower())))
+                    return new OperationResult<User>(new Exception("Diese E-Mail Adresse wird bereits verwendet"));
+            
+                user.Created = DateTime.UtcNow;
+            
+                await Context.Users.AddAsync(user);
+            
+                var saveResult = await Context.SaveChangesAsync();
+                if (saveResult == 0) return new OperationResult<User>(new Exception("Fehler bei der Registrierung"));
+            
+                return new OperationResult<User>(user);
+            }
+            catch (Exception e)
+            {
+                return new OperationResult<User>(e);
+            }
+            
+        }
+        
+        public async Task<OperationResult> Update(User user)
+        {
+            try
+            {
+                Context.Users.Update(user);
+                var saveR = await Context.SaveChangesAsync();
+            
+                if(saveR < 1) return new OperationResult(new Exception("Fehler beim speichern"));
+                return new OperationResult();
+            }
+            catch (Exception e)
+            {
+                return new OperationResult(e);
+            }
+        }
+        
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Gets users asynchronous. </summary>
+        ///
+        /// <remarks>   A Beging, 20.10.2021. </remarks>
+        ///
+        /// <returns>   An asynchronous result that yields the users. </returns>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public async Task<OperationResult<List<User>>> GetUsersAsync()
+        {
+            try
+            {
+                var users = await Context.Users.ToListAsync();
+                return new OperationResult<List<User>>(users);
+            }
+            catch (Exception e)
+            {
+                return new OperationResult<List<User>>(e);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Pages/Index.razor b/FoodsharingSiegen.Server/Pages/Index.razor
deleted file mode 100644
index d1c2757..0000000
--- a/FoodsharingSiegen.Server/Pages/Index.razor
+++ /dev/null
@@ -1,9 +0,0 @@
-@page "/"
-
-<PageTitle>Index</PageTitle>
-
-<h1>Hello, world!</h1>
-
-Welcome to your new app.
-
-<SurveyPrompt Title="How is Blazor working for you?"/>
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Pages/Users.razor b/FoodsharingSiegen.Server/Pages/Users.razor
new file mode 100644
index 0000000..0bb7604
--- /dev/null
+++ b/FoodsharingSiegen.Server/Pages/Users.razor
@@ -0,0 +1,72 @@
+@page "/"
+@using FoodsharingSiegen.Contracts.Entity
+
+@code {
+
+    private RenderFragment PopupTitleTemplate(PopupTitleContext<User> value)
+    {
+        var header = "Benutzer erstellen";
+        if (value.EditState == DataGridEditState.Edit) header = "Benutzer bearbeiten";
+
+        return builder =>
+        {
+            builder.OpenElement(0, "span");
+            builder.AddContent(1, header);
+            builder.CloseElement();
+        };
+    }
+
+}
+
+<PageTitle>Benutzer</PageTitle>
+
+<h2>Benutzerverwaltung <span style="font-size: .5em; line-height: 0;">Admin</span></h2>
+
+<DataGrid TItem="User"
+          @ref="UserDataGrid"
+          Data="@UserList"
+          CommandMode="DataGridCommandMode.Commands"
+          EditMode="DataGridEditMode.Popup"
+          PopupTitleTemplate="PopupTitleTemplate"
+          RowInserted="RowInserted"
+          RowUpdated="RowUpdated"
+          RowDoubleClicked="arg => UserDataGrid.Edit(arg.Item)"
+          Editable
+          Responsive>
+    <DataGridColumns>
+        <DataGridCommandColumn TItem="User" Caption="Wololo" Width="100px" CellStyle="@(_ => "display: flex; padding-left: 0; padding-right: 0; justify-content: center; align-items: center;")">
+            <NewCommandTemplate>
+                <Button Size="Size.ExtraSmall" Color="Color.Success" Clicked="@context.Clicked" Class="mr-1" Style="min-width: auto;">
+                    <i class="oi oi-plus"></i>
+                </Button>
+            </NewCommandTemplate>
+            <EditCommandTemplate>
+                <Button Size="Size.ExtraSmall" Color="Color.Secondary" Clicked="@context.Clicked" Class="mr-1" Style="min-width: auto;">
+                    <i class="oi oi-pencil"></i>
+                </Button>
+            </EditCommandTemplate>
+            <DeleteCommandTemplate>
+                <Button Size="Size.ExtraSmall" Color="Color.Danger" Clicked="@context.Clicked" Class="mr-1" Style="min-width: auto;">
+                    <i class="oi oi-trash"></i>
+                </Button>
+            </DeleteCommandTemplate>
+            <ClearFilterCommandTemplate>
+                <Button Size="Size.ExtraSmall" Color="Color.Danger" Clicked="@context.Clicked" Style="min-width: auto;">
+                    <i class="o"></i> <i class="fas fa-trash"></i>
+                </Button>
+            </ClearFilterCommandTemplate>
+        </DataGridCommandColumn>
+        <DataGridColumn TItem="User" Field="@nameof(User.Name)" Caption="Name" Editable="true"></DataGridColumn>
+        <DataGridColumn TItem="User" Field="@nameof(User.Mail)" Caption="E-Mail" Editable="true"></DataGridColumn>
+        <DataGridColumn TItem="User" Field="@nameof(User.Type)" Caption="Typ" Editable="true">
+            <EditTemplate>
+                <Select TValue="UserType" @bind-SelectedValue="@context.Item.Type">
+                    @foreach (var enumValue in Enum.GetValues<UserType>())
+                    {
+                        <SelectItem TValue="UserType" Value="enumValue">@enumValue</SelectItem>
+                    }
+                </Select>
+            </EditTemplate>
+        </DataGridColumn>
+    </DataGridColumns>
+</DataGrid>
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Pages/Users.razor.cs b/FoodsharingSiegen.Server/Pages/Users.razor.cs
new file mode 100644
index 0000000..5761ccf
--- /dev/null
+++ b/FoodsharingSiegen.Server/Pages/Users.razor.cs
@@ -0,0 +1,56 @@
+using Blazorise.DataGrid;
+using FoodsharingSiegen.Contracts.Entity;
+using FoodsharingSiegen.Server.Data.Service;
+using Microsoft.AspNetCore.Components;
+
+namespace FoodsharingSiegen.Server.Pages
+{
+    public partial class Users
+    {
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Gets or sets the user service. </summary>
+        ///
+        /// <value> The user service. </value>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        [Inject] public UserService UserService { get; set; } = null!;
+        
+        private List<User>? UserList { get; set; } 
+        public DataGrid<User> UserDataGrid { get; set; }
+
+        protected override async Task OnAfterRenderAsync(bool firstRender)
+        {
+            if (firstRender)
+                await LoadUsers();
+            
+            await base.OnAfterRenderAsync(firstRender);
+        }
+        
+        private async Task LoadUsers()
+        {
+            var usersR = await UserService.GetUsersAsync();
+            if (usersR.Success) UserList = usersR.Data;
+            
+            await InvokeAsync(StateHasChanged);
+        }
+
+        private async Task RowUpdated(SavedRowItem<User, Dictionary<string, object>> arg)
+        {
+            if (arg.Item?.Id == null || arg.Item.Id.Equals(Guid.Empty) || arg.Values?.Any() != true) return;
+
+            await UserService.Update(arg.Item);
+        }
+
+        private async Task RowInserted(SavedRowItem<User, Dictionary<string, object>> arg)
+        {
+            var addUserR = await UserService.AddUserAsync(arg.Item);
+            if (!addUserR.Success)
+            {
+                // Error Toast
+            }
+            else
+            {
+                await LoadUsers();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/FoodsharingSiegen.Server/Program.cs b/FoodsharingSiegen.Server/Program.cs
index be80b5f..39efe40 100644
--- a/FoodsharingSiegen.Server/Program.cs
+++ b/FoodsharingSiegen.Server/Program.cs
@@ -1,6 +1,9 @@
-using Microsoft.AspNetCore.Components;
-using Microsoft.AspNetCore.Components.Web;
+using Blazorise;
+using Blazorise.Icons.Material;
+using Blazorise.Material;
 using FoodsharingSiegen.Server.Data;
+using FoodsharingSiegen.Server.Data.Service;
+using Microsoft.EntityFrameworkCore;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -8,6 +11,14 @@ var builder = WebApplication.CreateBuilder(args);
 builder.Services.AddRazorPages();
 builder.Services.AddServerSideBlazor();
 builder.Services.AddSingleton<WeatherForecastService>();
+builder.Services.AddDbContextFactory<FsContext>(opt =>
+    opt.UseSqlite($"Data Source=app.db"));
+
+// DI
+builder.Services.AddScoped<FsContext>();
+builder.Services.AddScoped<UserService>();
+
+builder.Services.AddBlazorise(options => { options.ChangeTextOnKeyPress = true; }).AddMaterialProviders().AddMaterialIcons();
 
 var app = builder.Build();
 
diff --git a/FoodsharingSiegen.Server/Shared/NavMenu.razor b/FoodsharingSiegen.Server/Shared/NavMenu.razor
index a24a2f5..bbab352 100644
--- a/FoodsharingSiegen.Server/Shared/NavMenu.razor
+++ b/FoodsharingSiegen.Server/Shared/NavMenu.razor
@@ -1,6 +1,6 @@
 <div class="top-row ps-3 navbar navbar-dark">
     <div class="container-fluid">
-        <a class="navbar-brand" href="">FoodsharingSiegen.Server</a>
+        <a class="navbar-brand" href="">Foodsharing Siegen</a>
         <button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
             <span class="navbar-toggler-icon"></span>
         </button>
@@ -11,17 +11,12 @@
     <nav class="flex-column">
         <div class="nav-item px-3">
             <NavLink class="nav-link" href="" Match="NavLinkMatch.All">
-                <span class="oi oi-home" aria-hidden="true"></span> Home
+                <span class="fas fa-users mr-1" aria-hidden="true" style="font-size: 1.4em;"></span> Benutzer
             </NavLink>
         </div>
         <div class="nav-item px-3">
             <NavLink class="nav-link" href="counter">
-                <span class="oi oi-plus" aria-hidden="true"></span> Counter
-            </NavLink>
-        </div>
-        <div class="nav-item px-3">
-            <NavLink class="nav-link" href="fetchdata">
-                <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
+                <span class="fas fa-tasks mr-1" aria-hidden="true" style="font-size: 1.4em;"></span> Verifizierung
             </NavLink>
         </div>
     </nav>
@@ -30,7 +25,7 @@
 @code {
     private bool collapseNavMenu = true;
 
-    private string? NavMenuCssClass => collapseNavMenu ? "collapse" : null;
+    private string? NavMenuCssClass => collapseNavMenu ? "" : null;
 
     private void ToggleNavMenu()
     {
diff --git a/FoodsharingSiegen.Server/Shared/NavMenu.razor.css b/FoodsharingSiegen.Server/Shared/NavMenu.razor.css
index acc5f9f..b7970aa 100644
--- a/FoodsharingSiegen.Server/Shared/NavMenu.razor.css
+++ b/FoodsharingSiegen.Server/Shared/NavMenu.razor.css
@@ -32,7 +32,7 @@
     }
 
     .nav-item ::deep a {
-        color: #d7d7d7;
+        color: #533a20;
         border-radius: 4px;
         height: 3rem;
         display: flex;
@@ -42,12 +42,12 @@
 
 .nav-item ::deep a.active {
     background-color: rgba(255,255,255,0.25);
-    color: white;
+    color: #64ae24;
 }
 
 .nav-item ::deep a:hover {
     background-color: rgba(255,255,255,0.1);
-    color: white;
+    color: #64ae24;
 }
 
 @media (min-width: 641px) {