From 3d1be2f5680dec248f26e69d9a27f0fcc2e124ea Mon Sep 17 00:00:00 2001
From: Mati <matles3@st.amu.edu.pl>
Date: Sun, 27 Jan 2019 17:28:29 +0100
Subject: [PATCH] Dodano sprawdzenie polaczenia

---
 Magazyn_Client/Magazyn/MainWindow.xaml    | 17 ++++--
 Magazyn_Client/Magazyn/MainWindow.xaml.cs | 67 +++++++++++++++--------
 2 files changed, 56 insertions(+), 28 deletions(-)

diff --git a/Magazyn_Client/Magazyn/MainWindow.xaml b/Magazyn_Client/Magazyn/MainWindow.xaml
index 6df635d..5c211dd 100644
--- a/Magazyn_Client/Magazyn/MainWindow.xaml
+++ b/Magazyn_Client/Magazyn/MainWindow.xaml
@@ -17,8 +17,13 @@
         mc:Ignorable="d"
         Title="Magazyn Owoców" MinHeight="259" Height="500" MaxWidth="590" MinWidth="590" Width="590" >
     <Grid>
-        <ListBox MouseDoubleClick="fruitListMouseDoubleClick" x:Name="fruitList" Margin="10,51,10,89"/>
-        <Button Name="sum" Content="Wartość magazynu" Margin="0,0,10,10" VerticalAlignment="Bottom" Height="35" Click="Value_Click" HorizontalAlignment="Right" Width="163"/>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="435*"/>
+            <RowDefinition Height="0*"/>
+            <RowDefinition Height="34*"/>
+        </Grid.RowDefinitions>
+        <ListBox MouseDoubleClick="fruitListMouseDoubleClick" x:Name="fruitList" Margin="10,51,10,55"/>
+        <Button Name="sum" Content="Wartość magazynu" Margin="0,0,10,10" VerticalAlignment="Bottom" Height="35" Click="Value_Click" HorizontalAlignment="Right" Width="163" Grid.RowSpan="3"/>
         <Label Content="Lista owoców:" FontWeight="Bold" HorizontalAlignment="Left" Margin="10,4,0,0" VerticalAlignment="Top" Width="100"/>
         <Label Content="Nazwa owocu:" FontWeight="Bold" HorizontalAlignment="Left" Margin="91,25,0,0" VerticalAlignment="Top" Width="100"/>
 
@@ -27,9 +32,11 @@
         <Label Content="Cena 1szt:" FontWeight="Bold" HorizontalAlignment="Left" Margin="360,25,0,0" VerticalAlignment="Top" Width="73"/>
         <Label Content="Wartość:" FontWeight="Bold" HorizontalAlignment="Left" Margin="438,25,0,0" VerticalAlignment="Top" Width="65"/>
 
-        <Button x:Name="prevButton" Content="Poprzednia" HorizontalAlignment="Left" Margin="10,0,0,52" VerticalAlignment="Bottom" Width="105" Click="prevButton_Click"/>
-        <Button x:Name="nextButton"  Content="Następna" HorizontalAlignment="Right" Margin="0,0,10,52" VerticalAlignment="Bottom" Width="105" Click="nextButton_Click"/>
-        <TextBlock x:Name="pageBlock" FontSize="16" Margin="274,0,273,59" TextWrapping="Wrap" Text="NaN" Height="19" VerticalAlignment="Bottom"/>
+        <Button x:Name="prevButton" Content="Poprzednia" HorizontalAlignment="Left" Margin="10,0,0,18" VerticalAlignment="Bottom" Width="105" Click="prevButton_Click"/>
+        <Button x:Name="nextButton"  Content="Następna" HorizontalAlignment="Right" Margin="0,0,10,18" VerticalAlignment="Bottom" Width="105" Click="nextButton_Click"/>
+        <TextBlock x:Name="pageBlock" FontSize="16" Margin="274,0,273,25" TextWrapping="Wrap" Text="NaN" Height="19" VerticalAlignment="Bottom"/>
+        <Label Content="Status:" HorizontalAlignment="Left" Margin="4,0,0,14" VerticalAlignment="Bottom" Grid.RowSpan="3"/>
+        <TextBlock Name="netStatus" HorizontalAlignment="Left" Margin="50,0,0,19" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Bottom" Grid.RowSpan="3"/>
 
 
     </Grid>
diff --git a/Magazyn_Client/Magazyn/MainWindow.xaml.cs b/Magazyn_Client/Magazyn/MainWindow.xaml.cs
index 7d09588..da90eb7 100644
--- a/Magazyn_Client/Magazyn/MainWindow.xaml.cs
+++ b/Magazyn_Client/Magazyn/MainWindow.xaml.cs
@@ -21,6 +21,7 @@ using Newtonsoft.Json.Linq;
 using System.Net;
 using Magazyn.Windows;
 using Magazyn.Tools;
+using System.Net.NetworkInformation;
 
 namespace Magazyn
 {
@@ -32,6 +33,7 @@ namespace Magazyn
 
         bool firstPage;
         bool lastPage;
+        bool netConn;
 
         HttpClient client;
 
@@ -42,6 +44,11 @@ namespace Magazyn
             InitializeComponent();
             client = new HttpClient();
             this.Loaded += MainWindowLoaded;
+            netConn = checkInternetConnection();
+            if (netConn)
+                netStatus.Text = "Połączony";
+            else
+                netStatus.Text = "Rozłączony";
         }
 
         private void MainWindowLoaded(object sender, EventArgs e)
@@ -85,33 +92,36 @@ namespace Magazyn
 
         private void RefreshListOfFruits()
         {
-            pageBlock.Text = page.ToString();
-
-            Task<HttpResponseMessage> response = client.GetAsync("https://sysmag.herokuapp.com/api/get-all?page=" + page.ToString() + "&size=" + size.ToString());
-            while (response.IsCompleted != true) ;
-
-            if (response.Result.StatusCode != HttpStatusCode.OK)
+            if (netConn)
             {
-                ErrorWindow window = new ErrorWindow("Nastąpił błąd połączenia z serwerem.");
-                window.Owner = this;
-                window.ShowDialog();
+                pageBlock.Text = page.ToString();
 
-                page = 0;
-                size = 0;
+                Task<HttpResponseMessage> response = client.GetAsync("https://sysmag.herokuapp.com/api/get-all?page=" + page.ToString() + "&size=" + size.ToString());
+                while (response.IsCompleted != true) ;
 
-                return;
+                if (response.Result.StatusCode != HttpStatusCode.OK)
+                {
+                    ErrorWindow window = new ErrorWindow("Nastąpił błąd połączenia z serwerem.");
+                    window.Owner = this;
+                    window.ShowDialog();
+
+                    page = 0;
+                    size = 0;
+
+                    return;
+                }
+
+                string responseString = response.Result.Content.ReadAsStringAsync().Result;
+
+                JObject replay = JObject.Parse(responseString);
+
+                firstPage = bool.Parse(replay["first"].ToString());
+                lastPage = bool.Parse(replay["last"].ToString());
+
+                Fruit[] fruits = JsonConvert.DeserializeObject<Fruit[]>(replay["content"].ToString());
+
+                UpdateListOfFruits(fruits);
             }
-
-            string responseString = response.Result.Content.ReadAsStringAsync().Result;
-
-            JObject replay = JObject.Parse(responseString);
-
-            firstPage = bool.Parse(replay["first"].ToString());
-            lastPage = bool.Parse(replay["last"].ToString());
-
-            Fruit[] fruits = JsonConvert.DeserializeObject<Fruit[]>(replay["content"].ToString());
-
-            UpdateListOfFruits(fruits);
         }
 
         private void UpdateListOfFruits(Fruit[] list)
@@ -178,6 +188,17 @@ namespace Magazyn
                 window.ShowDialog();
             }
         }
+
+        private Boolean checkInternetConnection()
+        {
+            try
+            {
+                return new Ping().Send("www.google.com").Status == IPStatus.Success;
+            } catch
+            {
+                return false;
+            }
+        }
     }
 }
 
-- 
2.20.1