Add/Remove mock

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Encryption/Hash/HashProviderBase.cs

@@ -21,8 +21,6 @@ namespace SafeMessageStorage.Encryption.Hash
         }
 
         public virtual string GetHashString(byte[] bytes)
-        {
-            using (_hashAlgorithm)
         {
             return GetHashBytes(bytes)
                 .Select(b =>
@@ -30,7 +28,6 @@ namespace SafeMessageStorage.Encryption.Hash
                 .Aggregate((a, b) =>
                     a + b);
         }
-        }
 
         public virtual byte[] GetHashBytes(string input)
         {
@@ -38,11 +35,8 @@ namespace SafeMessageStorage.Encryption.Hash
         }
 
         public virtual byte[] GetHashBytes(byte[] bytes)
-        {
-            using (_hashAlgorithm)
         {
             return _hashAlgorithm.ComputeHash(bytes);
         }
     }
-    }
 }

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Models/Message.cs

@@ -6,13 +6,21 @@ namespace SafeMessageStorage.Models
 {
     public class Message
     {
-        public Message(string title, string content, DateTimeOffset? timeOfCreation = null)
+        public Message(string title, string content, DateTimeOffset? timeOfCreation = null, string id=null)
         {
+            Id = id ?? Guid.NewGuid().ToString();
             Title = title;
             Content = content;
             TimeOfCreation = timeOfCreation ?? DateTimeOffset.Now;
         }
 
+        public Message()
+        {
+            
+        }
+
+        public string Id { get; }
+
         public  string Title { get; }
 
         public string Content { get;  }

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/AddMessagePage.xaml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             x:Class="SafeMessageStorage.Pages.AddMessagePage"
+             Title="Add message">
+    <ContentPage.Content>
+        <StackLayout>
+            <StackLayout Padding="40" VerticalOptions="CenterAndExpand">
+                <Label Text="Title"/>
+                <Entry x:Name="TitleEntry"></Entry>
+                <Label Text="Message" Margin="0,20,0,0"/>
+                <Editor x:Name="ContentEntry" HeightRequest="200" BackgroundColor="#f4f4f4"/>
+            </StackLayout>
+            <Button Clicked="Button_OnClicked" Text="Add message to store" VerticalOptions="End"/>
+        </StackLayout>
+    </ContentPage.Content>
+</ContentPage>

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/AddMessagePage.xaml.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SafeMessageStorage.Models;
+using SafeMessageStorage.Services.MessageStorageService;
+using Xamarin.Forms;
+using Xamarin.Forms.Xaml;
+
+namespace SafeMessageStorage.Pages
+{
+    [XamlCompilation(XamlCompilationOptions.Compile)]
+    public partial class AddMessagePage : ContentPage
+    {
+        //private IMessageStorageService _messageStorage;
+
+        public AddMessagePage(/*IMessageStorageService messageStorageService*/)
+        {
+            InitializeComponent();
+        }
+
+
+        private async void Button_OnClicked(object sender, EventArgs e)
+        {
+            var message = new Message(TitleEntry.Text,ContentEntry.Text);
+            //if(await _messageStorage.SaveMessageAsync(message))
+                MessageAdded?.Invoke(this,message);
+                await Navigation.PopAsync();
+        }
+
+        public event EventHandler<Message> MessageAdded;
+    }
+}

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/AuthorizationPage.xaml.cs

@@ -36,9 +36,9 @@ namespace SafeMessageStorage.Pages
             _viewModel.Initialize();
         }
 
-        private void _viewModel_AuthorizationSucceeded(object sender, EventArgs e)
+        private async void _viewModel_AuthorizationSucceeded(object sender, EventArgs e)
         {
-
+            await Navigation.PushAsync(new MessagesListPage());
         }
 
         private async void _viewModel_AuthorizationFailed(object sender, string e)

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/MessageDetailPage.xaml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             x:Class="SafeMessageStorage.Pages.MessageDetailPage">
+    <ContentPage.Content>
+        <StackLayout Padding="40">
+            <Label x:Name="MessageContent" LineBreakMode="WordWrap"/>
+        </StackLayout>
+    </ContentPage.Content>
+</ContentPage>

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/MessageDetailPage.xaml.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SafeMessageStorage.Models;
+using Xamarin.Forms;
+using Xamarin.Forms.Xaml;
+
+namespace SafeMessageStorage.Pages
+{
+    [XamlCompilation(XamlCompilationOptions.Compile)]
+    public partial class MessageDetailPage : ContentPage
+    {
+        private string _messageId;
+
+        public MessageDetailPage(Message message)
+        {
+            InitializeComponent();
+            _messageId = message.Id;
+
+            Title = message.Title;
+            MessageContent.Text = message.Content;
+
+            ToolbarItems.Add(new ToolbarItem("Delete", "", () => DeleteMessage()));
+        }
+
+        private async void DeleteMessage()
+        {
+            MessageDeleted?.Invoke(this,_messageId);
+            await Navigation.PopAsync();
+        }
+
+        public event EventHandler<string> MessageDeleted;
+
+    }
+}

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/MessagesListPage.xaml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             mc:Ignorable="d"
+             x:Class="SafeMessageStorage.Pages.MessagesListPage">
+  <StackLayout>
+      <ListView x:Name="MyListView"
+                ItemsSource="{Binding Messages}"
+                ItemTapped="Handle_ItemTapped"
+                CachingStrategy="RecycleElement">
+          <!--Built in Cells-->
+          <ListView.ItemTemplate>
+              <DataTemplate>
+                  <TextCell Text="{Binding Title}" />
+              </DataTemplate>
+          </ListView.ItemTemplate>
+
+          <!--Custom View Cells-->
+          <!--
+    <ListView.ItemTemplate>
+      <DataTemplate>
+        <ViewCell>
+          <StackLayout>
+            <Label Text="{Binding Text}" 
+                   d:Text="{Binding .}"
+                   Style="{DynamicResource ListItemTextStyle}" />
+            <Label Text="{Binding Detail}" 
+                   d:Text="Detail"
+                   Style="{DynamicResource ListItemDetailTextStyle}"/>
+          </StackLayout>
+        </ViewCell>
+      </DataTemplate>
+    </ListView.ItemTemplate>
+    -->
+      </ListView>
+      <Button Text="AddMessage" Clicked="Button_OnClicked"></Button>
+    </StackLayout>
+</ContentPage>

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Pages/MessagesListPage.xaml.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Linq;
+using System.Threading.Tasks;
+using SafeMessageStorage.Models;
+using Xamarin.Forms;
+using Xamarin.Forms.Xaml;
+
+namespace SafeMessageStorage.Pages
+{
+    [XamlCompilation(XamlCompilationOptions.Compile)]
+    public partial class MessagesListPage : ContentPage
+    {
+        public ObservableCollection<Message> Messages { get; set; }
+
+        public MessagesListPage()
+        {
+            InitializeComponent();
+            Messages = new ObservableCollection<Message>()
+            {
+                new Message("Siemano","jakas wiadomosc"),
+                new Message("Kanapka","elo")
+            };
+
+            BindingContext = this;
+        }
+
+        async void Handle_ItemTapped(object sender, ItemTappedEventArgs e)
+        {
+            if (e.Item == null)
+                return;
+            var message = ((ListView) sender).SelectedItem as Message;
+            var detailPage = new MessageDetailPage(message);
+            detailPage.MessageDeleted += (sender, messageId) => OnMessageDeleted(messageId);
+            await Navigation.PushAsync(detailPage);
+
+            ////Deselect Item
+            ((ListView)sender).SelectedItem = null;
+        }
+
+        private async void Button_OnClicked(object sender, EventArgs e)
+        {
+            var addMessagePage = new AddMessagePage();
+            addMessagePage.MessageAdded+= (o, message) => Dispatcher.BeginInvokeOnMainThread(()=>Messages.Add(message));
+
+            await Navigation.PushAsync(addMessagePage);
+        }
+
+
+        private void OnMessageDeleted(string messageId)
+        {
+            var toRemove = Messages.FirstOrDefault(m => m.Id == messageId);
+            Messages.Remove(toRemove);
+        }
+    }
+}

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage.csproj

@@ -16,9 +16,18 @@
   </ItemGroup>
 
   <ItemGroup>
+    <EmbeddedResource Update="Pages\AddMessagePage.xaml">
+      <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
+    </EmbeddedResource>
     <EmbeddedResource Update="Pages\AuthorizationPage.xaml">
       <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
     </EmbeddedResource>
+    <EmbeddedResource Update="Pages\MessageDetailPage.xaml">
+      <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
+    </EmbeddedResource>
+    <EmbeddedResource Update="Pages\MessagesListPage.xaml">
+      <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
+    </EmbeddedResource>
     <EmbeddedResource Update="Pages\SetPasswordPage.xaml">
       <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
     </EmbeddedResource>

src/SafeMessageStorage/SafeMessageStorage/SafeMessageStorage/Services/AuthorizationService/AuthorizationService.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Text;
 using System.Threading.Tasks;
 using SafeMessageStorage.Encryption.Hash;
+using Xamarin.Forms;
 
 namespace SafeMessageStorage.Services.AuthorizationService
 {
@@ -23,8 +24,11 @@ namespace SafeMessageStorage.Services.AuthorizationService
         public bool IsPasswordSet => Xamarin.Essentials.SecureStorage.GetAsync(_passwordKey).Result != null;
         public async Task<bool> AuthorizeAsync(string password)
         {
+            if (string.IsNullOrWhiteSpace(password))
+                return false;
             var keyChainPassword = await Xamarin.Essentials.SecureStorage.GetAsync(_passwordKey);
-            var result = keyChainPassword?.Equals(_hashProvider.GetHashString(password)) ?? false;
+            var hash = _hashProvider.GetHashString(password);
+            var result = keyChainPassword?.Equals(hash) ?? false;
             IsAuthorized = result;
             AuthorizedUserHash = IsAuthorized ? keyChainPassword : null;
             return result;