feat: joining more chats for more data

To help with debugging and gathering bot related activity and
information, we will join all channels we are modded in except for those
users that are explicitly banned.

Author: ProgrammingByPermutation

src/Nullinside.Api.TwitchBot/Services/MainService.cs

@@ -180,13 +180,22 @@ protected override Task ExecuteAsync(CancellationToken stoppingToken) {
               // Join all the channels we're a mod in. Why do we limit it to channels we are a mod in? Twitch changed
               // its chat limits so that "verified bots" like us don't get special treatment anymore. The only thing
               // that skips the chat limits is if it's a channel you're a mod in.
-              foreach (User channel in usersWithBotEnabled) {
-                if (string.IsNullOrWhiteSpace(channel.TwitchUsername)) {
+              var bannedUsers = (await GetBannedUsers(db, stoppingToken))
+                .Where(u => !string.IsNullOrWhiteSpace(u.TwitchId))
+                .Select(u => u.TwitchId!.Trim())
+                .ToHashSet();
+              var allModdedAndNotBannedUsers = moddedChannels
+                .Where(m => !bannedUsers.Contains(m.broadcaster_id));
+              var joinChannels = usersWithBotEnabled
+                .Select(u => u.TwitchUsername)
+                .Concat(allModdedAndNotBannedUsers.Select(j => j.broadcaster_login));
+              foreach (var channel in joinChannels) {
+                if (string.IsNullOrWhiteSpace(channel)) {
                   continue;
                 }
 
-                await _client.AddMessageCallback(channel.TwitchUsername, OnTwitchMessageReceived);
-                await _client.AddBannedCallback(channel.TwitchUsername, OnTwitchBanReceived);
+                await _client.AddMessageCallback(channel, OnTwitchMessageReceived);
+                await _client.AddBannedCallback(channel, OnTwitchBanReceived);
               }
             }
 
@@ -290,7 +299,7 @@ orderby user.TwitchLastScanned
   /// <param name="db">The database.</param>
   /// <param name="stoppingToken">The stopping token.</param>
   /// <returns>The list of users with the bot enabled.</returns>
-  private async Task<List<User>?> GetBannedUsers(INullinsideContext db, CancellationToken stoppingToken) {
+  private async Task<List<User>> GetBannedUsers(INullinsideContext db, CancellationToken stoppingToken) {
     return await
       (from user in db.Users
         orderby user.TwitchLastScanned