Implemented fb login and get user currently lgged in

Trady.Android/Trady.Android.csproj

@@ -53,14 +53,17 @@
     <Reference Include="System.Numerics.Vectors" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Xamarin.Forms" Version="4.8.0.1560" />
+    <PackageReference Include="Xamarin.Forms" Version="4.8.0.1687" />
     <PackageReference Include="Xamarin.Essentials" Version="1.5.3.2" />
     <PackageReference Include="sqlite-net-pcl">
       <Version>1.7.335</Version>
     </PackageReference>
     <PackageReference Include="SQLiteNetExtensions">
       <Version>2.1.0</Version>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json">
+      <Version>12.0.3</Version>
+    </PackageReference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="MainActivity.cs" />

Trady.iOS/Trady.iOS.csproj

@@ -125,14 +125,17 @@
     <Reference Include="System.Numerics.Vectors" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Xamarin.Forms" Version="4.6.0.1141" />
+    <PackageReference Include="Xamarin.Forms" Version="4.8.0.1687" />
     <PackageReference Include="Xamarin.Essentials" Version="1.5.3.2" />
     <PackageReference Include="sqlite-net-pcl">
       <Version>1.7.335</Version>
     </PackageReference>
     <PackageReference Include="SQLiteNetExtensions">
       <Version>2.1.0</Version>
     </PackageReference>
+    <PackageReference Include="Newtonsoft.Json">
+      <Version>12.0.3</Version>
+    </PackageReference>
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
   <ItemGroup>

Trady/App.xaml.cs

@@ -3,7 +3,8 @@ using Xamarin.Forms;
 using Xamarin.Forms.Xaml;
 using Trady.Views;
 using System.IO;
-
+using SQLite;
+using Trady.Models;
 
 namespace Trady
 {
@@ -42,6 +43,14 @@ namespace Trady
 
         protected override void OnStart()
         {
+            using (SQLiteConnection conn = new SQLiteConnection(App.FilePath))
+            {
+
+                //var activeUsers = conn.Table<User>().Where(c => c.IsActive == "true").First();
+                //activeUsers.IsActive = "false";
+
+
+            }
         }
 
         protected override void OnSleep()

Trady/Models/FacebookProfile.cs

@@ -0,0 +1,22 @@
+using System;
+namespace Trady.Models
+{
+    public class FacebookProfile
+    {
+        public string Name { get; set; }
+        public Picture Picture { get; set; }
+        public string Id { get; set; }
+
+    }
+
+    public class Picture
+    {
+        public Data Data { get; set; }
+    }
+
+    public class Data
+    {
+        public bool IsSilhouette { get; set; }
+        public string Url { get; set; }
+    }
+}

Trady/Trady.csproj

@@ -11,13 +11,19 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Xamarin.Forms" Version="4.6.0.1141" />
+    <PackageReference Include="Xamarin.Forms" Version="4.8.0.1687" />
     <PackageReference Include="Xamarin.Essentials" Version="1.5.3.2" />
     <PackageReference Include="sqlite-net-pcl" Version="1.7.335" />
     <PackageReference Include="SQLiteNetExtensions" Version="2.1.0" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Views\" />
     <Folder Include="Models\" />
   </ItemGroup>
+  <ItemGroup>
+    <Reference Include="Mono.Android">
+      <HintPath>..\..\..\..\..\..\Library\Frameworks\Xamarin.Android.framework\Versions\11.0.2.0\lib\xamarin.android\xbuild-frameworks\MonoAndroid\v9.0\Mono.Android.dll</HintPath>
+    </Reference>
+  </ItemGroup>
 </Project>

Trady/Views/MainPage.xaml.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+using Xamarin.Forms;
+
+namespace Trady.Views
+{
+    public partial class MainPage : ContentPage
+
+    {
+
+        public MainPage()
+        {
+            InitializeComponent();
+        }
+
+        async void Fbbtn_Clicked(System.Object sender, System.EventArgs e)
+        {
+
+            await Navigation.PushAsync(new facebookLoginPage());
+        }
+
+
+    }
+}

Trady/Views/ProfilePage.xaml

@@ -26,15 +26,13 @@
             </Grid.RowDefinitions>
             <!--Profile pic-->
 
-            <Image Source="pp1.jpeg" Aspect="AspectFill"/>
+            <Image x:Name="userImage" Aspect="AspectFill" HeightRequest="300" WidthRequest="300" />
 
             <!--Profile details-->
 
             <StackLayout Grid.Row="1" HorizontalOptions="CenterAndExpand">
-                <Label Text="Name: Andreas" FontSize="20" FontAttributes="Bold"/>
-                <Label Text="Email: ando@gmail.com" FontSize="20" FontAttributes="Bold"/>
-                <Label Text="# of trades: 4 " FontSize="20" FontAttributes="Bold"/>
-                <Label Text="Submitted Offers Response " FontSize="20" FontAttributes="Bold"/>
+                <Label  x:Name="userName" Text="{Binding Name}" FontSize="20" FontAttributes="Bold"/>
+                <Label   Text="# of trades: 4 " FontSize="20" FontAttributes="Bold"/>
             </StackLayout>
 
         </Grid>

Trady/Views/ProfilePage.xaml.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
-
+using SQLite;
+using Trady.Models;
 using Xamarin.Forms;
 
 namespace Trady.Views
@@ -12,6 +13,22 @@ namespace Trady.Views
             InitializeComponent();
         }
 
+        protected override void OnAppearing()
+        {
+            base.OnAppearing();
+            using (SQLiteConnection conn = new SQLiteConnection(App.FilePath))
+            {
+                conn.CreateTable<User>();
+                var user = conn.Table<User>().FirstOrDefault(r => r.CurrentUser == true);
+
+                userName.Text = user.Name;
+                userImage.Source = user.Picture;
+
+            }
+
+        }
+
+
         void tradesPagebtn_Clicked(System.Object sender, System.EventArgs e)
         {
 

Trady/Views/RecievedOfferPage.xaml.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+using Xamarin.Forms;
+
+namespace Trady.Views
+{
+    public partial class RecievedOfferPage : ContentPage
+    {
+        public RecievedOfferPage()
+        {
+            InitializeComponent();
+        }
+
+        async void acceptbtn_Clicked(System.Object sender, System.EventArgs e)
+        {
+            await Navigation.PushAsync(new MyTradesPage());
+        }
+
+       async void declinebtn_Clicked(System.Object sender, System.EventArgs e)
+        {
+            await Navigation.PushAsync(new MyTradesPage());
+        }
+    }
+}

Trady/Views/SubmitOfferPage.xaml.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+
+using Xamarin.Forms;
+
+namespace Trady.Views
+{
+    public partial class SubmitOfferPage : ContentPage
+    {
+        public SubmitOfferPage()
+        {
+            InitializeComponent();
+        }
+
+        async void submitOfferbtn_Clicked(System.Object sender, System.EventArgs e)
+        {
+            await Navigation.PushAsync(new MyTradesPage());
+        }
+    }
+}

Trady/Views/facebookLoginPage.xaml

@@ -0,0 +1,9 @@
+<?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="Trady.Views.facebookLoginPage">
+    <ContentPage.Content>
+
+
+        <WebView x:Name="WebView" HeightRequest="10" WidthRequest="10" VerticalOptions="FillAndExpand"/>
+
+    </ContentPage.Content>
+</ContentPage>

Trady/Views/facebookLoginPage.xaml.cs

@@ -0,0 +1,98 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using Newtonsoft.Json;
+using Xamarin.Forms;
+using Trady.Models;
+using SQLite;
+
+namespace Trady.Views
+{
+    public partial class facebookLoginPage : ContentPage
+    {
+
+       //private string ClientId = "1272538809769102";
+
+        public facebookLoginPage()
+
+
+        {
+            InitializeComponent();
+
+            WebView.Source = "https://www.facebook.com/v9.0/dialog/oauth?client_id=1272538809769102&redirect_uri=https://www.facebook.com/connect/login_success.html&response_type=token";
+            WebView.Navigated += WebView_Navigated;
+
+
+        }
+        private void WebView_Navigated(object sender, WebNavigatedEventArgs e)
+        {
+            var AccessURL = e.Url;
+            if (AccessURL.Contains("access_token"))
+            {
+                AccessURL = AccessURL.Replace("https://www.facebook.com/connect/login_success.html#access_token=", string.Empty);
+                var accessToken = AccessURL.Split('&')[0];
+                HttpClient client = new HttpClient();
+                var response = client.GetStringAsync("https://graph.facebook.com/me?fields=name,picture,email,id&access_token=" + accessToken).Result;
+
+
+                var Data = JsonConvert.DeserializeObject<FacebookProfile>(response);
+
+
+                //connecto to database to check if user is already registered
+                using (SQLiteConnection conn = new SQLiteConnection(App.FilePath))
+                {
+
+
+                    conn.Delete<User>(13);
+                    var beforCurrentActiveUsers = conn.Table<User>().Where(r => r.CurrentUser == false);
+                    var loggedInUser = conn.Table<User>().FirstOrDefault(c => c.FacebookId == Data.Id);
+
+                    if(loggedInUser == null)
+                    {
+
+                        // Adding user to database
+                        User user = new User()
+                        {
+                            Name = Data.Name,
+                            //email = Data.email,
+                            Picture = Data.Picture.Data.Url,
+                            FacebookId = Data.Id,
+                            CurrentUser= false
+
+                        };
+
+                        // establishin connection to database 
+                        conn.CreateTable<User>();
+                        int rowsAdded = conn.Insert(user);
+
+                    }
+
+                   var activeUser = conn.Table<User>().FirstOrDefault(c => c.FacebookId == Data.Id);
+                    conn.Update(new User {
+                       UserId = activeUser.UserId,
+                       CurrentUser = true,
+                       FacebookId = activeUser.FacebookId,
+                       Name = activeUser.Name,
+                       Offers = activeUser.Offers,
+                       Picture = activeUser.Picture,
+                       Trades = activeUser.Trades
+
+                    });
+
+                    var beforeCurrentActiveUsers = conn.Table<User>().First(r => r.CurrentUser == true);
+
+                }
+
+
+
+
+                Navigation.PushAsync(new MyTradesPage());
+
+            }
+
+
+
+        }
+
+    }
+}