move StartCommercialAsync to Channels class; remove Ads class (#392)

* move StartCommercialAsync to Channels class; remove Ads classs

TwitchLib.Api.Helix.Models/Ads/StartCommercialRequest.cs → TwitchLib.Api.Helix.Models/Channels/StartCommercial/StartCommercialRequest.cs

@@ -1,6 +1,6 @@
 using Newtonsoft.Json;
 
-namespace TwitchLib.Api.Helix.Models.Ads
+namespace TwitchLib.Api.Helix.Models.Channels.StartCommercial
 {
    /// <summary>
    /// <para>Request Body for StartCommercial</para>

TwitchLib.Api.Helix.Models/Ads/StartCommercialResponse.cs → TwitchLib.Api.Helix.Models/Channels/StartCommercial/StartCommercialResponse.cs

@@ -1,6 +1,6 @@
 using Newtonsoft.Json;
 
-namespace TwitchLib.Api.Helix.Models.Ads
+namespace TwitchLib.Api.Helix.Models.Channels.StartCommercial
 {
    /// <summary>
    /// The response for starting a commercial on a specified channel.

TwitchLib.Api.Helix/Channels.cs

@@ -14,6 +14,7 @@
 using TwitchLib.Api.Helix.Models.Channels.GetFollowedChannels;
 using TwitchLib.Api.Helix.Models.Channels.ModifyChannelInformation;
 using TwitchLib.Api.Helix.Models.Channels.SnoozeNextAd;
+using TwitchLib.Api.Helix.Models.Channels.StartCommercial;
 
 namespace TwitchLib.Api.Helix
 {
@@ -327,5 +328,25 @@ public Task<SnoozeNextAdResponse> SnoozeNextAd(string broadcasterId, string acce
         }
 
         #endregion
+
+        #region StartCommercial
+
+        /// <summary>
+        /// <para><see href="https://dev.twitch.tv/docs/api/reference/#start-commercial">
+        /// Twitch Docs: Start Commercial</see></para>
+        /// <para>Starts a commercial on the specified channel.</para>
+        /// <para>Only partners and affiliates may run commercials and they must be streaming live at the time.
+        /// Only the broadcaster may start a commercial - the broadcaster’s editors and moderators may not start commercials on behalf of the broadcaster.</para>
+        /// <para><b>Requires a user access token that includes the channel:edit:commercial scope.</b></para>
+        /// </summary>
+        /// <param name="request" cref="StartCommercialRequest"></param>
+        /// <param name="accessToken">Optional access token to override the use of the stored one in the TwitchAPI instance.</param>
+        /// <returns cref="StartCommercialResponse"></returns>
+        public Task<StartCommercialResponse> StartCommercialAsync(StartCommercialRequest request, string accessToken = null)
+        {
+            return TwitchPostGenericAsync<StartCommercialResponse>("/channels/commercial", ApiVersion.Helix, JsonConvert.SerializeObject(request), null, accessToken);
+        }
+
+        #endregion
     }
 }

TwitchLib.Api.Helix/Helix.cs

@@ -21,10 +21,6 @@ public class Helix
       /// </summary>
       public Analytics Analytics { get; }
       /// <summary>
-      /// Ads related Helix APIs
-      /// </summary>
-      public Ads Ads { get; }
-      /// <summary>
       /// Bits related Helix APIs
       /// </summary>
       public Bits Bits { get; }
@@ -148,7 +144,6 @@ public Helix(ILoggerFactory loggerFactory = null, IRateLimiter rateLimiter = nul
          Settings = settings ?? new ApiSettings();
 
          Analytics = new Analytics(Settings, rateLimiter, http);
-         Ads = new Ads(Settings, rateLimiter, http);
          Bits = new Bits(Settings, rateLimiter, http);
          Chat = new Chat(Settings, rateLimiter, http);
          Channels = new Channels(Settings, rateLimiter, http);