Added a background voting bot service (#9)

* Added a background voting bot service

* Added VoteBot image build

* Added the votebot to docker-compose

.github/workflows/build-workflow.yml

@@ -60,6 +60,8 @@ jobs:
             svcDockerName: bravecobra/emoji-voting-svc
           - svcProjectName: EmojiUI
             svcDockerName: bravecobra/emoji-ui-svc
+          - svcProjectName: EmojiVoteBot
+            svcDockerName: bravecobra/emoji-votebot
     needs: [build]
     steps:
     - name: Checkout

EmojiUI/Controllers/EmojisController.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using EmojiUI.Services;
+using Emojivoto.V1;
 using Microsoft.AspNetCore.Mvc;
 using Emoji = EmojiUI.Controllers.Dtos.Emoji;
 
@@ -23,16 +24,13 @@ public async Task<IEnumerable<Emoji>> ListEmojis()
             return await _voteService.ListEmojis();
         }
 
-        // [HttpGet("{shortcode}")]
-        // public async Task<Emoji> FindByShortCode(string shortcode)
-        // {
-        //     var response = await _client.FindByShortcodeAsync(new FindByShortcodeRequest()
-        //     {
-        //         Shortcode = shortcode
-        //     });
-        //     return response.Emoji != null ? 
-        //         new Emoji { Shortcode = response.Emoji.Shortcode, Unicode = response.Emoji.Unicode } : 
-        //         null;
-        // }
+        [HttpGet("{shortcode}")]
+        public async Task<Emoji> FindByShortCode(string shortcode)
+        {
+            var response = await _voteService.FindByShortCode(shortcode);
+            return response != null ? 
+                new Emoji { Shortcode = response.Shortcode, Unicode = response.Unicode } : 
+                null;
+        }
     }
 }

EmojiUI/Pages/Index.razor

@@ -8,7 +8,14 @@
             <div class="col-md-12">
                 @if (VoteState.Value.Error == string.Empty)
                 {
-                    <h1 class="headline">🗳</h1>
+                    @if (VoteState.Value.SelectedEmoji != null)
+                    {
+                        <h1 class="headline">@VoteState.Value.SelectedEmoji.Unicode</h1>                    
+                    }
+                    else
+                    {
+                        <h1 class="headline">🗳</h1>                    
+                    }
                 }
                 else
                 {
@@ -23,7 +30,7 @@
                         @if (VoteState.Value.SelectedEmoji?.Shortcode == ":doughnut:")
                         {
                             <div>
-                                <p class="doughnut-explanation">For the sake of this demo, voting for 🍩<br />always returns an error.
+                                <p class="doughnut-explanation">For the sake of this demo, voting for 🍩<br />randomly returns an error.
                                 </p>
                                 <p>
                                     <NavLink class="nav-link" href="/" @onclick="() => Dispatcher.Dispatch(new ResetAction())" ><div class="btn btn-white">Pick another</div></NavLink>

EmojiUI/Pages/Leaderboard.razor

@@ -14,9 +14,13 @@
                 <NavLink href="/">
                     <div class="btn btn-blue">Vote on your favorite</div></NavLink>
                 <div class="emoji-list">
-                    @if (!LeaderBoardState.Value.IsLoading)
+                    @if (LeaderBoardState.Value.IsLoading)
                     {
-                        foreach (var result in LeaderBoardState.Value?.Results)
+                        <p><em>Loading results...</em></p>
+                    }
+                    else
+                    {
+                        foreach (var result in LeaderBoardState?.Value?.Results)
                         {
                             var title = $"{result.Votes} votes";
                             <div class="emoji" title="@title">

EmojiUI/Shared/Store/LeaderBoard/LeaderBoardFeature.cs

@@ -8,7 +8,10 @@ public class LeaderBoardFeature: Feature<LeaderBoardState>
 
         protected override LeaderBoardState GetInitialState()
         {
-            return new LeaderBoardState(false, null);
+            return new LeaderBoardState(
+                isLoading: true, 
+                results: null, 
+                error:string.Empty);
         }
     }
 }

EmojiVoteBot/Dockerfile

@@ -0,0 +1,21 @@
+#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/runtime:5.0 AS base
+WORKDIR /app
+
+FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
+WORKDIR /src
+COPY ["EmojiVoteBot/EmojiVoteBot.csproj", "EmojiVoteBot/"]
+RUN dotnet restore "EmojiVoteBot/EmojiVoteBot.csproj"
+COPY ./EmojiVoteBot ./EmojiVoteBot
+COPY ./protos ./protos
+WORKDIR "/src/EmojiVoteBot"
+RUN dotnet build "EmojiVoteBot.csproj" -c Release -o /app/build
+
+FROM build AS publish
+RUN dotnet publish "EmojiVoteBot.csproj" -c Release -o /app/publish
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "EmojiVoteBot.dll"]

EmojiVoteBot/EmojiVoteBot.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk.Worker">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <UserSecretsId>dotnet-EmojiVoteBot-0BD6347B-842F-470D-A520-B5B3B79983FD</UserSecretsId>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Google.Protobuf" Version="3.13.0" />
+    <PackageReference Include="Grpc.Net.ClientFactory" Version="2.32.0" />
+    <PackageReference Include="Grpc.Tools" Version="2.32.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="5.0.0" />
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.11.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Protobuf Include="..\protos\Emoji.proto" GrpcServices="Client">
+      <Link>Protos\Emoji.proto</Link>
+    </Protobuf>
+    <Protobuf Include="..\protos\Voting.proto" GrpcServices="Client">
+      <Link>Protos\Voting.proto</Link>
+    </Protobuf>
+  </ItemGroup>
+</Project>

EmojiVoteBot/Program.cs

@@ -0,0 +1,27 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using EmojiVoteBot.Services;
+using EmojiVoteBot.Services.Impl;
+using System;
+using System.Text;
+
+namespace EmojiVoteBot
+{
+    public static class Program
+    {
+        public static void Main(string[] args)
+        {
+            Console.OutputEncoding = Encoding.UTF8;
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureServices((hostContext, services) =>
+                {
+                    services.AddHttpClient();
+                    services.AddTransient<IEmojiVoteService, EmojiVoteRestService>();
+                    services.AddHostedService<VotingBot>();
+                });
+    }
+}

EmojiVoteBot/Properties/launchSettings.json

@@ -0,0 +1,15 @@
+{
+  "profiles": {
+    "EmojiVoteBot": {
+      "commandName": "Project",
+      "environmentVariables": {
+        "DOTNET_ENVIRONMENT": "Development",
+        "WEB_HOST": "http://localhost:8080"
+      },
+      "dotnetRunMessages": "true"
+    },
+    "Docker": {
+      "commandName": "Docker"
+    }
+  }
+}

EmojiVoteBot/Services/Emoji.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EmojiVoteBot.Services
+{
+    public class Emoji
+    {
+        public string Unicode { get; set; } = null!;
+        public string Shortcode { get; set; } = null!;
+    }
+}

EmojiVoteBot/Services/IEmojiVoteService.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace EmojiVoteBot.Services
+{
+    public interface IEmojiVoteService
+    {
+        Task<IEnumerable<Emoji>> ListEmojis();
+        Task<Emoji> FindByShortCode(string shortcode);
+        Task<bool> Vote(string choice);
+    }
+}