Add !mmr to get League of Legends MMR numbers

Geekbot.net/Commands/Integrations/LolMmr/LolMmr.cs

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+using System;
+using System.Net;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using System.Web;
+using Discord.Commands;
+using Geekbot.net.Lib;
+using Geekbot.net.Lib.ErrorHandling;
+
+namespace Geekbot.net.Commands.Integrations.LolMmr
+{
+    public class LolMmr : ModuleBase
+    {
+        private readonly IErrorHandler _errorHandler;
+
+        public LolMmr(IErrorHandler errorHandler)
+        {
+            _errorHandler = errorHandler;
+        }
+
+        [Command("mmr", RunMode = RunMode.Async)]
+        [Summary("Get the League of Legends MMR for a specified summoner")]
+        public async Task GetMmr([Remainder] [Summary("summoner")] string summonerName)
+        {
+            try
+            {
+                LolMmrDto data;
+                try
+                {
+                    var name = HttpUtility.UrlEncode(summonerName.ToLower());
+                    var httpClient = HttpAbstractions.CreateDefaultClient();
+                    // setting the user agent in accordance with the whatismymmr.com api rules
+                    httpClient.DefaultRequestHeaders.Remove("User-Agent");
+                    httpClient.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", "Linux:rocks.pizzaandcoffee.geekbot:v0.0.0");
+                    data = await HttpAbstractions.Get<LolMmrDto>(new Uri($"https://euw.whatismymmr.com/api/v1/summoner?name={name}"), httpClient);
+                }
+                catch (HttpRequestException e)
+                {
+                    if (e.StatusCode != HttpStatusCode.NotFound) throw e;
+                    
+                    await Context.Channel.SendMessageAsync("Player not found");
+                    return;
+
+                }
+
+                var sb = new StringBuilder();
+                sb.AppendLine($"**MMR for {summonerName}**");
+                sb.AppendLine($"Normal: {data.Normal.Avg}");
+                sb.AppendLine($"Ranked: {data.Ranked.Avg}");
+                sb.AppendLine($"ARAM: {data.ARAM.Avg}");
+                
+                await Context.Channel.SendMessageAsync(sb.ToString());
+            }
+            catch (Exception e)
+            {
+                await _errorHandler.HandleCommandException(e, Context);
+            }
+        }
+    }
+}

Geekbot.net/Commands/Integrations/LolMmr/LolMmrDto.cs

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+namespace Geekbot.net.Commands.Integrations.LolMmr
+{
+    public class LolMmrDto
+    {
+        public LolMrrInfoDto Ranked { get; set; }
+        public LolMrrInfoDto Normal { get; set; }
+        public LolMrrInfoDto ARAM { get; set; }
+    }
+}

Geekbot.net/Commands/Integrations/LolMmr/LolMrrInfoDto.cs

@@ -0,0 +1,11 @@
+using System;
+using Newtonsoft.Json;
+
+namespace Geekbot.net.Commands.Integrations.LolMmr
+{
+    public class LolMrrInfoDto
+    {
+        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
+        public decimal Avg { get; set; } = 0;
+    }
+}