Add command to show current proxy blacklist (#189)

PluralKit.Bot/Commands/CommandTree.cs

@@ -60,6 +60,7 @@ namespace PluralKit.Bot
         public static Command LogEnable = new Command("log enable", "log enable all|<channel> [channel 2] [channel 3...]", "Enables message logging in certain channels");
         public static Command LogDisable = new Command("log disable", "log disable all|<channel> [channel 2] [channel 3...]", "Disables message logging in certain channels");
         public static Command LogClean = new Command("logclean", "logclean [on|off]", "Toggles whether to clean up other bots' log channels");
+        public static Command BlacklistShow = new Command("blacklist show", "blacklist show", "Displays the current proxy blacklist");
         public static Command BlacklistAdd = new Command("blacklist add", "blacklist add all|<channel> [channel 2] [channel 3...]", "Adds certain channels to the proxy blacklist");
         public static Command BlacklistRemove = new Command("blacklist remove", "blacklist remove all|<channel> [channel 2] [channel 3...]", "Removes certain channels from the proxy blacklist");
         public static Command Invite = new Command("invite", "invite", "Gets a link to invite PluralKit to other servers");
@@ -142,7 +143,9 @@ namespace PluralKit.Bot
                     return ctx.Execute<ServerConfig>(BlacklistAdd, m => m.SetBlacklisted(ctx, true));
                 else if (ctx.Match("disable", "off", "remove", "allow"))
                     return ctx.Execute<ServerConfig>(BlacklistRemove, m => m.SetBlacklisted(ctx, false));
-                else return PrintCommandExpectedError(ctx, BlacklistAdd, BlacklistRemove);
+                else if (ctx.Match("list", "show"))
+                    return ctx.Execute<ServerConfig>(BlacklistShow, m => m.ShowBlacklisted(ctx));
+                else return PrintCommandExpectedError(ctx, BlacklistAdd, BlacklistRemove, BlacklistShow);
             if (ctx.Match("proxy", "enable", "disable"))
                 return ctx.Execute<SystemEdit>(SystemProxy, m => m.SystemProxy(ctx));
             if (ctx.Match("invite")) return ctx.Execute<Misc>(Invite, m => m.Invite(ctx));

PluralKit.Bot/Commands/ServerConfig.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
@@ -71,7 +72,28 @@ namespace PluralKit.Bot
                 $"{Emojis.Success} Message logging for the given channels {(enable ? "enabled" : "disabled")}." +
                 (logChannel == null ? $"\n{Emojis.Warn} Please note that no logging channel is set, so there is nowhere to log messages to. You can set a logging channel using `pk;log channel #your-log-channel`." : ""));
         }
-        
+
+        public async Task ShowBlacklisted(Context ctx)
+        {
+            ctx.CheckGuildContext().CheckAuthorPermission(Permissions.ManageGuild, "Manage Server");
+
+            await using (var conn = await _db.Obtain())
+            {
+                var guild = await conn.QueryOrInsertGuildConfig(ctx.Guild.Id);
+                List<string> blacklist = new List<string>();
+
+                foreach (ulong item in guild.Blacklist.ToHashSet()) {
+                    blacklist.Add($"<#{item}>");
+                }
+
+                await ctx.Paginate(blacklist.ToAsyncEnumerable(), blacklist.Count, 25, $"Blacklisted channels for {ctx.Guild.Name}", 
+                    async (eb, l) => {
+                        eb.Description += String.Join("\n", l);
+                    });
+
+            }
+        }
+
         public async Task SetBlacklisted(Context ctx, bool shouldAdd)
         {
             ctx.CheckGuildContext().CheckAuthorPermission(Permissions.ManageGuild, "Manage Server");