Add wikipedia api client, add wikipedia command, show errors in chat when debugging

.gitignore

@@ -10,3 +10,7 @@ UpgradeLog.htm
 .vscode
 Geekbot.net/Logs/*
 !/Geekbot.net/Logs/.keep
+Geekbot.net.sln.DotSettings.user
+Geekbot.net/temp/
+WikipediaApi/bin/
+WikipediaApi/obj/

Geekbot.net.sln

@@ -7,6 +7,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Geekbot.net", "Geekbot.net/
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "Tests\Tests.csproj", "{4CAF5F02-EFFE-4FDA-BD44-EEADDBA9600E}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WikipediaApi", "WikipediaApi\WikipediaApi.csproj", "{1084D499-EF94-4834-9E6A-B2AD81B60078}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +23,10 @@ Global
 		{4CAF5F02-EFFE-4FDA-BD44-EEADDBA9600E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{4CAF5F02-EFFE-4FDA-BD44-EEADDBA9600E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{4CAF5F02-EFFE-4FDA-BD44-EEADDBA9600E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1084D499-EF94-4834-9E6A-B2AD81B60078}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1084D499-EF94-4834-9E6A-B2AD81B60078}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1084D499-EF94-4834-9E6A-B2AD81B60078}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1084D499-EF94-4834-9E6A-B2AD81B60078}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Geekbot.net/Commands/Wikipedia.cs

@@ -0,0 +1,94 @@
+using System;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using Discord;
+using Discord.Commands;
+using Discord.Net;
+using Geekbot.net.Lib;
+using HtmlAgilityPack;
+using WikipediaApi;
+using WikipediaApi.Page;
+
+namespace Geekbot.net.Commands
+{
+    public class Wikipedia : ModuleBase
+    {
+        private readonly IErrorHandler _errorHandler;
+        private readonly IWikipediaClient _wikipediaClient;
+        
+        public Wikipedia(IErrorHandler errorHandler, IWikipediaClient wikipediaClient)
+        {
+            _errorHandler = errorHandler;
+            _wikipediaClient = wikipediaClient;
+        }
+
+        [Command("wiki", RunMode = RunMode.Async)]
+        [Remarks(CommandCategories.Helpers)]
+        [Summary("Get an article from wikipedia.")]
+        public async Task GetPreview([Remainder] [Summary("Article")] string articleName)
+        {
+            try
+            {
+                var article = await _wikipediaClient.GetPreview(articleName.Replace(" ", "_"));
+                
+                if (article.Type != PageTypes.Standard)
+                {
+                    switch (article.Type)
+                    {
+                        case PageTypes.Disambiguation:
+                            await ReplyAsync($"**__Disambiguation__**\r\n{DisambiguationExtractor(article.ExtractHtml)}");
+                            break;
+                        case PageTypes.MainPage:
+                            await ReplyAsync("The main page is not supported");
+                            break;
+                        case PageTypes.NoExtract:
+                            await ReplyAsync($"This page has no summary, here is the link: {article.ContentUrls.Desktop.Page}");
+                            break;
+                        case PageTypes.Standard:
+                            break;
+                        default:
+                            await ReplyAsync($"This page type is currently not supported, here is the link: {article.ContentUrls.Desktop.Page}");
+                            break;
+                    }
+                    return;
+                }
+
+                var eb = new EmbedBuilder
+                {
+                    Title = article.Title,
+                    Description = article.Extract,
+                    ImageUrl = article.Thumbnail.Source.ToString(),
+                    Url = article.ContentUrls.Desktop.Page.ToString()
+                };
+                await ReplyAsync("", false, eb.Build());
+            }
+            catch (HttpRequestException e)
+            {
+                await ReplyAsync("I couldn't find that article");
+            }
+            catch (Exception e)
+            {
+                _errorHandler.HandleCommandException(e, Context);
+            }
+        }
+
+        private string DisambiguationExtractor(string extractHtml)
+        {
+            var doc = new HtmlDocument();
+            doc.LoadHtml(extractHtml);
+            var nodes = doc.DocumentNode.SelectNodes("//li");
+            var sb = new StringBuilder();
+            foreach (var node in nodes)
+            {
+                var split = node.InnerText.Split(',');
+                var title = split.First();
+                var desc = string.Join(",", split.Skip(1));
+                sb.AppendLine($"**{title}** - {desc}");
+            }
+
+            return sb.ToString();
+        }
+    }
+}

Geekbot.net/Geekbot.net.csproj

@@ -15,6 +15,7 @@
       <Version>1.0.2</Version>
     </PackageReference>
     <PackageReference Include="Google.Apis.YouTube.v3" Version="1.29.1.991" />
+    <PackageReference Include="HtmlAgilityPack" Version="1.8.1" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="2.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="2.0.0" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="2.0.0" />
@@ -22,7 +23,7 @@
     <PackageReference Include="MyAnimeListSharp" Version="1.3.4" />
     <PackageReference Include="Nancy" Version="2.0.0-clinteastwood" />
     <PackageReference Include="Nancy.Hosting.Self" Version="2.0.0-clinteastwood" />
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
     <PackageReference Include="Overwatch.Net" Version="3.0.0" />
     <PackageReference Include="PokeApi.NET" Version="1.1.0" />
     <PackageReference Include="Serilog" Version="2.6.0" />
@@ -76,4 +77,7 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\WikipediaApi\WikipediaApi.csproj" />
+  </ItemGroup>
 </Project>

Geekbot.net/Lib/ErrorHandler.cs

@@ -1,4 +1,6 @@
 using System;
+using System.Collections.Generic;
+using System.Diagnostics;
 using System.Net;
 using Discord.Commands;
 using Discord.Net;
@@ -12,11 +14,13 @@ namespace Geekbot.net.Lib
         private readonly IGeekbotLogger _logger;
         private readonly ITranslationHandler _translation;
         private readonly IRavenClient _raven;
+        private readonly bool _errorsInChat;
 
-        public ErrorHandler(IGeekbotLogger logger, ITranslationHandler translation)
+        public ErrorHandler(IGeekbotLogger logger, ITranslationHandler translation, bool errorsInChat)
         {
             _logger = logger;
             _translation = translation;
+            _errorsInChat = errorsInChat;
 
             var sentryDsn = Environment.GetEnvironmentVariable("SENTRY");
             if (!string.IsNullOrEmpty(sentryDsn))
@@ -40,10 +44,18 @@ namespace Geekbot.net.Lib
                 if (e.Message.Contains("50013")) return;
                 _logger.Error("Geekbot", "An error ocured", e, errorObj);
                 if (!string.IsNullOrEmpty(errorMessage))
+                {
+                    if (_errorsInChat)
+                    {
+                        Context.Channel.SendMessageAsync($"{e.Message}\r\n```\r\n{e.InnerException}\r\n```");
+                    }
+                    else
                     {
                         Context.Channel.SendMessageAsync(errorString);
                     }
                     
+                }
+                
                 if (_raven == null) return;
                 
                 var sentryEvent = new SentryEvent(e)

Geekbot.net/Program.cs

@@ -1,10 +1,7 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
 using System.Linq;
 using System.Net;
 using System.Reflection;
-using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading.Tasks;
 using Discord;
@@ -14,8 +11,8 @@ using Geekbot.net.Lib;
 using Geekbot.net.Lib.Media;
 using Microsoft.Extensions.DependencyInjection;
 using Nancy.Hosting.Self;
-using Serilog;
 using StackExchange.Redis;
+using WikipediaApi;
 
 namespace Geekbot.net
 {
@@ -101,6 +98,7 @@ namespace Geekbot.net
             var emojiConverter = new EmojiConverter();
             var audioUtils = new AudioUtils();
             var mtgManaConverter = new MtgManaConverter();
+            var wikipediaClient = new WikipediaClient();
             
             services.AddSingleton(redis);
             services.AddSingleton<IGeekbotLogger>(logger);
@@ -112,6 +110,7 @@ namespace Geekbot.net
             services.AddSingleton<IMediaProvider>(mediaProvider);
             services.AddSingleton<IMalClient>(malClient);
             services.AddSingleton<IMtgManaConverter>(mtgManaConverter);
+            services.AddSingleton<IWikipediaClient>(wikipediaClient);
 
             logger.Information("Geekbot", "Connecting to Discord");
 
@@ -134,7 +133,7 @@ namespace Geekbot.net
 
                     logger.Information("Geekbot", "Registering Stuff");
                     var translationHandler = new TranslationHandler(client.Guilds, redis, logger);
-                    var errorHandler = new ErrorHandler(logger, translationHandler);
+                    var errorHandler = new ErrorHandler(logger, translationHandler, args.Contains("--expose-errors"));
                     var reactionListener = new ReactionListener(redis);
                     await commands.AddModulesAsync(Assembly.GetEntryAssembly());
                     services.AddSingleton(commands);

WikipediaApi/IWikipediaClient.cs

@@ -0,0 +1,10 @@
+using System.Threading.Tasks;
+using WikipediaApi.Page;
+
+namespace WikipediaApi
+{
+    public interface IWikipediaClient
+    {
+        Task<PagePreview> GetPreview(string pageName);
+    }
+}

WikipediaApi/Page/PageApiUrls.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace WikipediaApi.Page
+{
+    public class PageApiUrls
+    {
+        public Uri Summary { get; set; }
+        public Uri Metadata { get; set; }
+        public Uri References { get; set; }
+        public Uri Media { get; set; }
+        public Uri EditHtml { get; set; }
+        public Uri TalkPageHtml { get; set; }
+    }
+}

WikipediaApi/Page/PageContentUrlCollection.cs

@@ -0,0 +1,8 @@
+namespace WikipediaApi.Page
+{
+    public class PageContentUrlCollection
+    {
+        public PageContentUrls Desktop { get; set; }
+        public PageContentUrls Mobile { get; set; }
+    }
+}

WikipediaApi/Page/PageContentUrls.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace WikipediaApi.Page
+{
+    public class PageContentUrls
+    {
+        public Uri Page { get; set; }
+        public Uri Revisions { get; set; }
+        public Uri Edit { get; set; }
+        public Uri Talk { get; set; }
+    }
+}

WikipediaApi/Page/PageCoordinates.cs

@@ -0,0 +1,8 @@
+namespace WikipediaApi.Page
+{
+    public class PageCoordinates
+    {
+        public float lat { get; set; }
+        public float lon { get; set; }
+    }
+}

WikipediaApi/Page/PageImage.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace WikipediaApi.Page
+{
+    public class PageImage
+    {
+        public Uri Source { get; set; }
+        public int Width { get; set; }
+        public int Height { get; set; }
+        
+    }
+}

WikipediaApi/Page/PageNamespace.cs

@@ -0,0 +1,8 @@
+namespace WikipediaApi.Page
+{
+    public class PageNamespace
+    {
+        public ulong Id { get; set; }
+        public string Text { get; set; }
+    }
+}

WikipediaApi/Page/PagePreview.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Runtime.Serialization;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace WikipediaApi.Page
+{
+    public class PagePreview
+    {
+        [JsonProperty("type")]
+        [JsonConverter(typeof(StringEnumConverter))]
+        public PageTypes Type { get; set; } = PageTypes.NoExtract;
+        
+        [JsonProperty("title")]
+        public string Title { get; set; }
+        
+        [JsonProperty("displaytitle")]
+        public string Displaytitle { get; set; }
+        
+        [JsonProperty("namespace")]
+        public PageNamespace @Namespace { get; set; }
+        
+        [JsonProperty("titles")]
+        public PageTitles Titles { get; set; }
+        
+        [JsonProperty("pageid")]
+        public ulong Pageid { get; set; }
+        
+        [JsonProperty("thumbnail")]
+        public PageImage Thumbnail { get; set; }
+        
+        [JsonProperty("originalimage")]
+        public PageImage Originalimage { get; set; }
+        
+        [JsonProperty("lang")]
+        public string Lang { get; set; }
+        
+        [JsonProperty("dir")]
+        public string Dir { get; set; }
+        
+        [JsonProperty("revision")]
+        public ulong Revision { get; set; }
+        
+        [JsonProperty("tid")]
+        public string Tid { get; set; }
+        
+        [JsonProperty("timestamp")]
+        public DateTimeOffset Timestamp { get; set; }
+        
+        [JsonProperty("description")]
+        public string Description { get; set; }
+        
+        [JsonProperty("coordinates")]
+        public PageCoordinates Coordinates { get; set; }
+        
+        [JsonProperty("content_urls")]
+        public PageContentUrlCollection ContentUrls { get; set; }
+        
+        [JsonProperty("api_urls")]
+        public PageApiUrls ApiUrls { get; set; }
+        
+        [JsonProperty("extract")]
+        public string Extract { get; set; }
+        
+        [JsonProperty("extract_html")]
+        public string ExtractHtml { get; set; }
+    }
+}

WikipediaApi/Page/PageTitles.cs

@@ -0,0 +1,10 @@
+namespace WikipediaApi.Page
+{
+    public class PageTitles
+    {
+        public string Canonical { get; set; }
+        public string Normalized { get; set; }
+        public string Display { get; set; }
+        
+    }
+}

WikipediaApi/Page/PageTypes.cs

@@ -0,0 +1,19 @@
+using System.Runtime.Serialization;
+
+namespace WikipediaApi.Page
+{
+    public enum PageTypes
+    {
+        [EnumMember(Value = "standard")] 
+        Standard,
+        
+        [EnumMember(Value = "disambiguation")] 
+        Disambiguation,
+        
+        [EnumMember(Value = "mainpage")] 
+        MainPage,
+        
+        [EnumMember(Value = "no-extract")] 
+        NoExtract
+    }
+}

WikipediaApi/WikipediaApi.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+  </ItemGroup>
+</Project>

WikipediaApi/WikipediaClient.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Net.Http;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using WikipediaApi.Page;
+
+namespace WikipediaApi
+{
+    public class WikipediaClient : IWikipediaClient
+    {
+        private readonly HttpClient _httpClient;
+        public WikipediaClient()
+        {
+            _httpClient = new HttpClient
+            {
+                BaseAddress = new Uri("https://en.wikipedia.org")
+            };
+        }
+
+        public async Task<PagePreview> GetPreview(string pageName)
+        {
+            var response = await _httpClient.GetAsync($"/api/rest_v1/page/summary/{pageName}");
+            response.EnsureSuccessStatusCode();
+
+            var stringResponse = await response.Content.ReadAsStringAsync();
+            return JsonConvert.DeserializeObject<PagePreview>(stringResponse);
+        }
+    }
+}