From 8a5d2865604a8d2bf693258d31c6ea9bca2a275d Mon Sep 17 00:00:00 2001
From: Mikhail Shabanov <dr.mboga@yahoo.com>
Date: Wed, 7 Jul 2021 17:14:38 +0200
Subject: [PATCH] chore: WG login redirection and parameters parsing
 implemented

---
 .../Messages/RedirectFromWgLoginMessage.cs    | 28 +++++++++++
 .../Pages/Login.razor                         | 46 +++++++++++++++++++
 .../Services/WargamingLoginService.cs         | 24 ++++++++--
 .../WotBlitzStatisticsPro.Blazor.csproj       |  1 +
 4 files changed, 95 insertions(+), 4 deletions(-)
 create mode 100644 WotBlitzStatisticsPro.Blazor/Messages/RedirectFromWgLoginMessage.cs
 create mode 100644 WotBlitzStatisticsPro.Blazor/Pages/Login.razor

diff --git a/WotBlitzStatisticsPro.Blazor/Messages/RedirectFromWgLoginMessage.cs b/WotBlitzStatisticsPro.Blazor/Messages/RedirectFromWgLoginMessage.cs
new file mode 100644
index 0000000..5faffd3
--- /dev/null
+++ b/WotBlitzStatisticsPro.Blazor/Messages/RedirectFromWgLoginMessage.cs
@@ -0,0 +1,28 @@
+using MediatR;
+using WotBlitzStatisticsPro.Blazor.GraphQl;
+
+namespace WotBlitzStatisticsPro.Blazor.Messages
+{
+    public class RedirectFromWgLoginMessage : INotification
+    {
+        public RealmType Realm { get; }
+        public string NickName { get; }
+        public long AccountId { get; }
+        public string AccessToken { get; }
+        public long ExpiresAt { get; }
+
+        public RedirectFromWgLoginMessage(
+            RealmType realm,
+            string nickName,
+            long accountId,
+            string accessToken,
+            long expiresAt)
+        {
+            Realm = realm;
+            NickName = nickName;
+            AccountId = accountId;
+            AccessToken = accessToken;
+            ExpiresAt = expiresAt;
+        }
+    }
+}
\ No newline at end of file
diff --git a/WotBlitzStatisticsPro.Blazor/Pages/Login.razor b/WotBlitzStatisticsPro.Blazor/Pages/Login.razor
new file mode 100644
index 0000000..1f2b37f
--- /dev/null
+++ b/WotBlitzStatisticsPro.Blazor/Pages/Login.razor
@@ -0,0 +1,46 @@
+@page "/login/{Realm}"
+@using WotBlitzStatisticsPro.Blazor.Messages
+@using MediatR
+@using Microsoft.AspNetCore.WebUtilities
+@inject NavigationManager NavigationManager
+@inject IMediator Mediator
+<h3>Login</h3>
+
+<p>@realmValue | @accountId | @nickName | @accessToken | @expiresAt</p>
+
+
+@code {
+
+    [Parameter]
+    public string Realm { get; set; } = "Asia";
+
+    string nickName;
+    long accountId;
+    string accessToken;
+    long expiresAt;
+    RealmType realmValue = RealmType.Asia;
+
+    protected override async Task OnInitializedAsync()
+    {
+        var query = QueryHelpers.ParseQuery(NavigationManager.Uri);
+        if (query.ContainsKey("status") &&
+            query.ContainsKey("access_token") &&
+            query.ContainsKey("nickname") &&
+            query.ContainsKey("account_id") &&
+            query.ContainsKey("expires_at"))
+        {
+            string status = query["status"].FirstOrDefault();
+            if (status == "ok")
+            {
+                nickName = query["nickname"].FirstOrDefault();
+                accountId = Convert.ToInt64(query["account_id"].FirstOrDefault());
+                accessToken = query["access_token"].FirstOrDefault();
+                expiresAt = Convert.ToInt64(query["expires_at"].FirstOrDefault());
+                Enum.TryParse(Realm, out realmValue);
+
+                await Mediator.Publish(new RedirectFromWgLoginMessage(realmValue, nickName, accountId, accessToken, expiresAt));
+            }
+        }
+    }
+
+}
diff --git a/WotBlitzStatisticsPro.Blazor/Services/WargamingLoginService.cs b/WotBlitzStatisticsPro.Blazor/Services/WargamingLoginService.cs
index cee10f0..9b70bb1 100644
--- a/WotBlitzStatisticsPro.Blazor/Services/WargamingLoginService.cs
+++ b/WotBlitzStatisticsPro.Blazor/Services/WargamingLoginService.cs
@@ -2,6 +2,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using MediatR;
+using Microsoft.AspNetCore.Components;
 using Microsoft.Extensions.Localization;
 using Radzen;
 using WotBlitzStatisticsPro.Blazor.Messages;
@@ -9,20 +10,26 @@ using WotBlitzStatisticsPro.Blazor.Pages;
 
 namespace WotBlitzStatisticsPro.Blazor.Services
 {
-    public class WargamingLoginService: INotificationHandler<LoginToWgMessage>, INotificationHandler<RedirectToWgLoginMessage>
+    public class WargamingLoginService: 
+        INotificationHandler<LoginToWgMessage>, 
+        INotificationHandler<RedirectToWgLoginMessage>,
+        INotificationHandler<RedirectFromWgLoginMessage>
     {
         private readonly IGraphQlBackendService _graphQlBackendService;
         private readonly DialogService _dialogService;
         private readonly IStringLocalizer<App> _localizer;
+        private readonly NavigationManager _navigationManager;
 
         public WargamingLoginService(
             IGraphQlBackendService graphQlBackendService,
             DialogService dialogService,
-            IStringLocalizer<App> localizer)
+            IStringLocalizer<App> localizer,
+            NavigationManager navigationManager)
         {
             _graphQlBackendService = graphQlBackendService;
             _dialogService = dialogService;
             _localizer = localizer;
+            _navigationManager = navigationManager;
         }
 
         public async Task Handle(LoginToWgMessage notification, CancellationToken cancellationToken)
@@ -36,8 +43,17 @@ namespace WotBlitzStatisticsPro.Blazor.Services
         public async Task Handle(RedirectToWgLoginMessage notification, CancellationToken cancellationToken)
         {
             var url = await _graphQlBackendService.GetWgLoginUrl(notification.Realm);
-            // ToDo: take a look to redirect message in previous app reincarnation
-            url = $"{url}&redirect_uri=https://developers.wargaming.net/reference/all/wot/auth/login/";
+            var baseUri = _navigationManager.BaseUri;
+            url = $"{url}&redirect_uri={baseUri}login/{notification.Realm}";
+
+            _navigationManager.NavigateTo(url);
+        }
+
+        public Task Handle(RedirectFromWgLoginMessage notification, CancellationToken cancellationToken)
+        {
+            // ToDo: Store login info to local storage
+            // ToDo: Send OpenPlayerInfoMessage with isLoggedIn = true
+            return Task.CompletedTask;
         }
     }
 }
\ No newline at end of file
diff --git a/WotBlitzStatisticsPro.Blazor/WotBlitzStatisticsPro.Blazor.csproj b/WotBlitzStatisticsPro.Blazor/WotBlitzStatisticsPro.Blazor.csproj
index d8258e3..379276c 100644
--- a/WotBlitzStatisticsPro.Blazor/WotBlitzStatisticsPro.Blazor.csproj
+++ b/WotBlitzStatisticsPro.Blazor/WotBlitzStatisticsPro.Blazor.csproj
@@ -16,6 +16,7 @@
     <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="9.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="5.0.4" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="5.0.4" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="5.0.1" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
     <PackageReference Include="Microsoft.Extensions.Localization" Version="5.0.5" />