From aba074c263c4e9336a8c1f1e01777642c8ede76b Mon Sep 17 00:00:00 2001
From: TheJoKlLa <thejoklla@gmail.com>
Date: Sun, 19 Sep 2021 23:05:43 +0200
Subject: [PATCH] Added: Connection failed Message

---
 .../Page/AddServerProcess/HostSelectPage.xaml | 23 ++++++--
 .../AddServerProcess/LoginChoosePage.xaml     | 27 ++++++---
 .../AddServerProcess/LoginPasswordPage.xaml   | 25 ++++++---
 .../AddServerProcess/HostSelectPageModel.cs   | 56 +++++++++++++++----
 .../AddServerProcess/LoginChoosePageModel.cs  | 36 +++++++++---
 .../LoginPasswordPageModel.cs                 | 36 +++++++++---
 Borepin/Borepin/PageModel/ServerPageModel.cs  | 17 +++++-
 7 files changed, 173 insertions(+), 47 deletions(-)

diff --git a/Borepin/Borepin/Page/AddServerProcess/HostSelectPage.xaml b/Borepin/Borepin/Page/AddServerProcess/HostSelectPage.xaml
index 3916250..d7e9fb1 100644
--- a/Borepin/Borepin/Page/AddServerProcess/HostSelectPage.xaml
+++ b/Borepin/Borepin/Page/AddServerProcess/HostSelectPage.xaml
@@ -1,16 +1,27 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
-             x:Class="Borepin.Page.AddServerProcess.HostSelectPage">
+             x:Class="Borepin.Page.AddServerProcess.HostSelectPage"
+             xmlns:converters="clr-namespace:Borepin.Converter">
     <NavigationPage.TitleView>
-        <Label Text="FabAccess" Style="{StaticResource Style_Label_Header}"/>
+        <Label Text="FabAccess" HorizontalOptions="End" Margin="0, 0, 10, 0" VerticalOptions="CenterAndExpand" FontSize="Medium" TextColor="{StaticResource FirstColor}"/>
     </NavigationPage.TitleView>
+    <ContentPage.Resources>
+        <ResourceDictionary>
+            <converters:InvertBoolConverter x:Key="InvertBoolConverter"/>
+        </ResourceDictionary>
+    </ContentPage.Resources>
     <ContentPage.Content>
         <StackLayout Padding="20">
-            <Label Text="Host" Style="{StaticResource Style_Label_Property_Title}"></Label>
-            <Entry Text="{Binding Host}"/>
-            <Button Text="Detect local host" Command="{Binding DetectHostCommand}" Style="{StaticResource Style_Button_Primary}"/>
-            <Button Text="Select Host" Command="{Binding UseHostCommand}" Style="{StaticResource Style_Button_Primary}"/>
+            <StackLayout IsVisible="{Binding IsBusy}">
+                <ActivityIndicator IsRunning="{Binding IsBusy}"></ActivityIndicator>
+            </StackLayout>
+            <StackLayout IsVisible="{Binding IsBusy, Converter={StaticResource InvertBoolConverter}}">
+                <Label Text="Host" Style="{StaticResource Style_Label_Property_Title}"></Label>
+                <Entry Text="{Binding Host}"/>
+                <Button Text="Demo Host Address" Command="{Binding DetectHostCommand}" Style="{StaticResource Style_Button_Primary}"/>
+                <Button Text="Select Host" Command="{Binding UseHostCommand}" Style="{StaticResource Style_Button_Primary}"/>
+            </StackLayout>
         </StackLayout>
     </ContentPage.Content>
 </ContentPage>
\ No newline at end of file
diff --git a/Borepin/Borepin/Page/AddServerProcess/LoginChoosePage.xaml b/Borepin/Borepin/Page/AddServerProcess/LoginChoosePage.xaml
index 9009235..6b85364 100644
--- a/Borepin/Borepin/Page/AddServerProcess/LoginChoosePage.xaml
+++ b/Borepin/Borepin/Page/AddServerProcess/LoginChoosePage.xaml
@@ -1,19 +1,30 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
-             x:Class="Borepin.Page.AddServerProcess.LoginChoosePage">
+             x:Class="Borepin.Page.AddServerProcess.LoginChoosePage"
+             xmlns:converters="clr-namespace:Borepin.Converter">
     <NavigationPage.TitleView>
-        <Label Text="FabAccess" FontAttributes="Bold" HorizontalOptions="FillAndExpand" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" VerticalOptions="FillAndExpand" FontSize="Medium" TextColor="{StaticResource FirstColor}"/>
+        <Label Text="FabAccess" HorizontalOptions="End" Margin="0, 0, 10, 0" VerticalOptions="CenterAndExpand" FontSize="Medium" TextColor="{StaticResource FirstColor}"/>
     </NavigationPage.TitleView>
+    <ContentPage.Resources>
+        <ResourceDictionary>
+            <converters:InvertBoolConverter x:Key="InvertBoolConverter"/>
+        </ResourceDictionary>
+    </ContentPage.Resources>
     <ContentPage.Content>
         <StackLayout Padding="20">
-            <Label Text="Sign In:" Style="{StaticResource Style_Label_Property_Title}"></Label>
-            <Button Text="Login with Password" Command="{Binding LoginPasswordCommand}" Style="{StaticResource Style_Button_Primary}"/>
-            <Label Text="or" Style="{StaticResource Style_Label_Property_Title}"></Label>
-            <Button Text="Login with Card" Style="{StaticResource Style_Button_Primary}" IsEnabled="False"/>
+            <StackLayout IsVisible="{Binding IsBusy}">
+                <ActivityIndicator IsRunning="{Binding IsBusy}"></ActivityIndicator>
+            </StackLayout>
+            <StackLayout IsVisible="{Binding IsBusy, Converter={StaticResource InvertBoolConverter}}">
+                <Label Text="Sign In:" Style="{StaticResource Style_Label_Property_Title}"></Label>
+                <Button Text="Login with Password" Command="{Binding LoginPasswordCommand}" Style="{StaticResource Style_Button_Primary}"/>
+                <Label Text="or" Style="{StaticResource Style_Label_Property_Title}"></Label>
+                <Button Text="Login with Card" Style="{StaticResource Style_Button_Primary}" IsEnabled="False"/>
 
-            <Label Text="Sign Up:" Style="{StaticResource Style_Label_Property_Title}"></Label>
-            <Button Text="Register" Style="{StaticResource Style_Button_Primary}" IsEnabled="False"/>
+                <Label Text="Sign Up:" Style="{StaticResource Style_Label_Property_Title}"></Label>
+                <Button Text="Register" Style="{StaticResource Style_Button_Primary}" IsEnabled="False"/>
+            </StackLayout>
         </StackLayout>
     </ContentPage.Content>
 </ContentPage>
\ No newline at end of file
diff --git a/Borepin/Borepin/Page/AddServerProcess/LoginPasswordPage.xaml b/Borepin/Borepin/Page/AddServerProcess/LoginPasswordPage.xaml
index 45278fb..f54def5 100644
--- a/Borepin/Borepin/Page/AddServerProcess/LoginPasswordPage.xaml
+++ b/Borepin/Borepin/Page/AddServerProcess/LoginPasswordPage.xaml
@@ -1,19 +1,30 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
-             x:Class="Borepin.Page.AddServerProcess.LoginPasswordPage">
+             x:Class="Borepin.Page.AddServerProcess.LoginPasswordPage"
+             xmlns:converters="clr-namespace:Borepin.Converter">
     <NavigationPage.TitleView>
-        <Label Text="FabAccess" FontAttributes="Bold" HorizontalOptions="FillAndExpand" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" VerticalOptions="FillAndExpand" FontSize="Medium" TextColor="{StaticResource FirstColor}"/>
+        <Label Text="FabAccess" HorizontalOptions="End" Margin="0, 0, 10, 0" VerticalOptions="CenterAndExpand" FontSize="Medium" TextColor="{StaticResource FirstColor}"/>
     </NavigationPage.TitleView>
+    <ContentPage.Resources>
+        <ResourceDictionary>
+            <converters:InvertBoolConverter x:Key="InvertBoolConverter"/>
+        </ResourceDictionary>
+    </ContentPage.Resources>
     <ContentPage.Content>
         <StackLayout Padding="20">
-            <Label Text="Username" Style="{StaticResource Style_Label_Property_Title}"></Label>
-            <Entry Text="{Binding Username}"/>
+            <StackLayout IsVisible="{Binding IsBusy}">
+                <ActivityIndicator IsRunning="{Binding IsBusy}"></ActivityIndicator>
+            </StackLayout>
+            <StackLayout IsVisible="{Binding IsBusy, Converter={StaticResource InvertBoolConverter}}">
+                <Label Text="Username" Style="{StaticResource Style_Label_Property_Title}"></Label>
+                <Entry Text="{Binding Username}"/>
 
-            <Label Text="Password" Style="{StaticResource Style_Label_Property_Title}"></Label>
-            <Entry Text="{Binding Password}" IsPassword="True"/>
+                <Label Text="Password" Style="{StaticResource Style_Label_Property_Title}"></Label>
+                <Entry Text="{Binding Password}" IsPassword="True"/>
 
-            <Button Text="Login" Command="{Binding AuthenticateCommand}" Style="{StaticResource Style_Button_Primary}"/>
+                <Button Text="Login" Command="{Binding AuthenticateCommand}" Style="{StaticResource Style_Button_Primary}"/>
+            </StackLayout>
         </StackLayout>
     </ContentPage.Content>
 </ContentPage>
\ No newline at end of file
diff --git a/Borepin/Borepin/PageModel/AddServerProcess/HostSelectPageModel.cs b/Borepin/Borepin/PageModel/AddServerProcess/HostSelectPageModel.cs
index ce0cf38..c664418 100644
--- a/Borepin/Borepin/PageModel/AddServerProcess/HostSelectPageModel.cs
+++ b/Borepin/Borepin/PageModel/AddServerProcess/HostSelectPageModel.cs
@@ -1,6 +1,7 @@
-using Borepin.Service.BFFH;
-using Prism.Mvvm;
+using Borepin.Base;
+using Borepin.Service.BFFH;
 using Prism.Navigation;
+using Prism.Services;
 using System;
 using System.Collections.ObjectModel;
 using System.Threading.Tasks;
@@ -9,27 +10,36 @@ using Xamarin.Forms;
 
 namespace Borepin.PageModel.AddServerProcess
 {
-    public class HostSelectPageModel : BindableBase
+    public class HostSelectPageModel : PageModelBase
     {
-        private readonly INavigationService _NavigationService;
+        #region Private Properties
         private readonly IBFFHService _BFFHService;
+        private readonly IPageDialogService _PageDialogService;
+        #endregion
 
-        public HostSelectPageModel(INavigationService navigationService, IBFFHService bffhService)
+        #region Constructors
+        public HostSelectPageModel(INavigationService navigationService, IBFFHService bffhService, IPageDialogService pageDialogService) : base(navigationService)
         {
-            _NavigationService = navigationService;
             _BFFHService = bffhService;
+            _PageDialogService = pageDialogService;
 
             UseHostCommand = new Command(UseHostCommandExecuted);
             DetectHostCommand = new Command(DetectHostCommandExecuted);
 
             Task.Run(LoadData);
         }
+        #endregion
 
-        private void LoadData()
+        #region LoadData
+        public override Task LoadData()
         {
+            IsBusy = false;
 
+            return Task.CompletedTask;
         }
+        #endregion
 
+        #region Properties
         private string _Host;
         public string Host
         {
@@ -43,7 +53,9 @@ namespace Borepin.PageModel.AddServerProcess
             get => _KnownHost_List;
             set => SetProperty(ref _KnownHost_List, value);
         }
+        #endregion
 
+        #region Commands
         private ICommand _UseHostCommand;
         public ICommand UseHostCommand
         {
@@ -53,6 +65,8 @@ namespace Borepin.PageModel.AddServerProcess
 
         private async void UseHostCommandExecuted()
         {
+            IsBusy = true;
+
             UriBuilder builder = new UriBuilder(Host);
             if(builder.Port == 80)
             {
@@ -68,9 +82,18 @@ namespace Borepin.PageModel.AddServerProcess
             {
                 await _BFFHService.Disconnect();
             }
-            await _BFFHService.Connect(connection);
-           
-            
+
+            try
+            {
+                await _BFFHService.Connect(connection);
+            }
+            catch (Capnp.Rpc.RpcException exception) when (exception.Message == "TcpRpcClient is unable to connect")
+            {
+                await _PageDialogService.DisplayAlertAsync("Connection failed", "Unable to connect to server.", "Ok");
+
+                IsBusy = false;
+                return;
+            }
 
             INavigationResult result = await _NavigationService.NavigateAsync("AddServerProcess_LoginChoosePage");
             if(!result.Success)
@@ -91,5 +114,18 @@ namespace Borepin.PageModel.AddServerProcess
             // Use Demo Host
             Host = "127.0.0.1:59661";
         }
+        #endregion
+
+        #region INavigationAware
+        public override void OnNavigatedFrom(INavigationParameters parameters)
+        {
+            
+        }
+
+        public override void OnNavigatedTo(INavigationParameters parameters)
+        {
+            
+        }
+        #endregion
     }
 }
diff --git a/Borepin/Borepin/PageModel/AddServerProcess/LoginChoosePageModel.cs b/Borepin/Borepin/PageModel/AddServerProcess/LoginChoosePageModel.cs
index c6bea76..982bdc9 100644
--- a/Borepin/Borepin/PageModel/AddServerProcess/LoginChoosePageModel.cs
+++ b/Borepin/Borepin/PageModel/AddServerProcess/LoginChoosePageModel.cs
@@ -1,21 +1,30 @@
-using Prism.Mvvm;
+using Borepin.Base;
 using Prism.Navigation;
+using System.Threading.Tasks;
 using System.Windows.Input;
 using Xamarin.Forms;
 
 namespace Borepin.PageModel.AddServerProcess
 {
-    public class LoginChoosePageModel : BindableBase
+    public class LoginChoosePageModel : PageModelBase
     {
-        private INavigationService _NavigationService;
-
-        public LoginChoosePageModel(INavigationService navigationService)
+        #region Contructors
+        public LoginChoosePageModel(INavigationService navigationService) : base(navigationService)
         {
-            _NavigationService = navigationService;
-
             LoginPasswordCommand = new Command(LoginPasswordCommandExecuted);
         }
+        #endregion
 
+        #region LoadData
+        public override Task LoadData()
+        {
+            IsBusy = false;
+
+            return Task.CompletedTask;
+        }
+        #endregion
+
+        #region Commands
         private ICommand _LoginPasswordCommand;
         public ICommand LoginPasswordCommand
         {
@@ -31,5 +40,18 @@ namespace Borepin.PageModel.AddServerProcess
                 System.Diagnostics.Debugger.Break();
             }
         }
+        #endregion
+
+        #region INavigationAware
+        public override void OnNavigatedFrom(INavigationParameters parameters)
+        {
+
+        }
+
+        public override void OnNavigatedTo(INavigationParameters parameters)
+        {
+        
+        }
+        #endregion
     }
 }
diff --git a/Borepin/Borepin/PageModel/AddServerProcess/LoginPasswordPageModel.cs b/Borepin/Borepin/PageModel/AddServerProcess/LoginPasswordPageModel.cs
index fa1c092..020c706 100644
--- a/Borepin/Borepin/PageModel/AddServerProcess/LoginPasswordPageModel.cs
+++ b/Borepin/Borepin/PageModel/AddServerProcess/LoginPasswordPageModel.cs
@@ -1,8 +1,8 @@
-using Borepin.Model;
+using Borepin.Base;
+using Borepin.Model;
 using Borepin.Service.BFFH;
 using Borepin.Service.Connections;
 using Prism.Commands;
-using Prism.Mvvm;
 using Prism.Navigation;
 using System;
 using System.Threading.Tasks;
@@ -10,15 +10,16 @@ using System.Windows.Input;
 
 namespace Borepin.PageModel.AddServerProcess
 {
-    public class LoginPasswordPageModel : BindableBase
+    public class LoginPasswordPageModel : PageModelBase
     {
-        private readonly INavigationService _NavigationService;
+        #region Private Properties
         private readonly IBFFHService _BFFHService;
         private readonly IConnectionService _ConnectionService;
+        #endregion
 
-        public LoginPasswordPageModel(INavigationService navigationService, IBFFHService bffhService, IConnectionService connectionService)
+        #region Constructors
+        public LoginPasswordPageModel(INavigationService navigationService, IBFFHService bffhService, IConnectionService connectionService) : base(navigationService)
         {
-            _NavigationService = navigationService;
             _BFFHService = bffhService;
             _ConnectionService = connectionService;
 
@@ -26,12 +27,18 @@ namespace Borepin.PageModel.AddServerProcess
 
             Task.Run(LoadData);
         }
+        #endregion
 
-        private void LoadData()
+        #region LoadData
+        public override Task LoadData()
         {
+            IsBusy = false;
 
+            return Task.CompletedTask;
         }
+        #endregion
 
+        #region Properties
         private string _Username;
         public string Username
         {
@@ -45,7 +52,9 @@ namespace Borepin.PageModel.AddServerProcess
             get => _Password;
             set => SetProperty(ref _Password, value);
         }
+        #endregion
 
+        #region Commands
         private ICommand _AuthenticateCommand;
         public ICommand AuthenticateCommand
         {
@@ -79,5 +88,18 @@ namespace Borepin.PageModel.AddServerProcess
                 System.Diagnostics.Debugger.Break();
             }
         }
+        #endregion
+
+        #region INavigationAware
+        public override void OnNavigatedFrom(INavigationParameters parameters)
+        {
+
+        }
+
+        public override void OnNavigatedTo(INavigationParameters parameters)
+        {
+
+        }
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/Borepin/Borepin/PageModel/ServerPageModel.cs b/Borepin/Borepin/PageModel/ServerPageModel.cs
index 47c261e..7fed943 100644
--- a/Borepin/Borepin/PageModel/ServerPageModel.cs
+++ b/Borepin/Borepin/PageModel/ServerPageModel.cs
@@ -5,6 +5,7 @@ using Borepin.Service.Connections;
 using Borepin.Service.Credentials;
 using Prism.Commands;
 using Prism.Navigation;
+using Prism.Services;
 using Prism.Services.Dialogs;
 using System.Threading.Tasks;
 using System.Windows.Input;
@@ -18,16 +19,18 @@ namespace Borepin.PageModel
         private readonly IConnectionService _ConnectionService;
         private readonly IBFFHService _BFFHService;
         private readonly ICredentialService _CredentialService;
+        private readonly IPageDialogService _PageDialogService;
         #endregion
 
         #region Constructors
-        public ServerPageModel(INavigationService navigationService, IDialogService dialogService, IConnectionService connectionService, IBFFHService bffhService, ICredentialService credentialService) : base(navigationService)
+        public ServerPageModel(INavigationService navigationService, IDialogService dialogService, IConnectionService connectionService, IBFFHService bffhService, ICredentialService credentialService, IPageDialogService pageDialogService) : base(navigationService)
         {
             _DialogService = dialogService;
 
             _ConnectionService = connectionService;
             _BFFHService = bffhService;
             _CredentialService = credentialService;
+            _PageDialogService = pageDialogService;
 
             ConnectCommand = new DelegateCommand(async () => await ConnectCommandExecuted());
             DeleteCommand = new DelegateCommand(DeleteCommandExecuted);
@@ -77,7 +80,17 @@ namespace Borepin.PageModel
             }
             else
             {
-                await _BFFHService.Connect(Connection_Item);
+                try
+                {
+                    await _BFFHService.Connect(Connection_Item);
+                }
+                catch(Capnp.Rpc.RpcException exception) when (exception.Message == "TcpRpcClient is unable to connect")
+                {
+                    await _PageDialogService.DisplayAlertAsync("Connection failed", "Unable to connect to server.", "Ok");
+                    
+                    IsBusy = false;
+                    return;
+                }
                 await _BFFHService.Authenticate();
 
                 IsConnected = true;