List embed fixer patterns

Author: gepbird

Commands/EmbedFixerCommand.cs

@@ -1,5 +1,6 @@
 using Discord;
 using Discord.WebSocket;
+using Moe.Models;
 using Moe.Services;
 
 namespace Moe.Commands;
@@ -31,10 +32,43 @@ public EmbedFixerCommand(EmbedFixerService service) : base("embedfixer")
   public override async Task Handle(SocketSlashCommand cmd)
   {
     var user = (SocketGuildUser)cmd.User;
+    var guild = user.Guild;
+    var subcommand = cmd.GetSubcommand();
     if (!service.IsAuthorized(user, out var error))
     {
       await cmd.RespondAsync($"{Emotes.ErrorEmote} " + error);
       return;
     }
+
+    var handle = subcommand.Name switch
+    {
+      "list" => ListPatterns(cmd, guild),
+      _ => throw new InvalidOperationException($"{Emotes.ErrorEmote} Unknown subcommand {subcommand.Name}")
+    };
+
+    await handle;
+  }
+
+  private async Task ListPatterns(SocketSlashCommand cmd, SocketGuild guild)
+  {
+    var patterns = await service.GetPatternsFromCache(guild.Id);
+    if (patterns.Count == 0)
+    {
+      await cmd.RespondAsync($"{Emotes.ErrorEmote} There are no embed fixer patterns");
+      return;
+    }
+
+    var embed = new PaginatableEmbedBuilder<EmbedFixerPattern>
+      (5, patterns, items =>
+        new EmbedBuilder()
+          .WithAuthor(guild.Name, iconUrl: guild.IconUrl)
+          .WithTitle("Embed fixer patterns")
+          .WithFields(items.Select(x => new EmbedFieldBuilder()
+            .WithName(x.Pattern)
+            .WithValue(x.Replacement)))
+          .WithColor(Colors.Blurple)
+      );
+
+    await cmd.RespondAsync(embed: embed.Embed, components: embed.Components);
   }
 }

Services/EmbedFixerService.cs

@@ -61,7 +61,7 @@ private async Task<List<EmbedFixerPattern>> GetPatterns(ulong guildId)
     });
   }
 
-  private async Task<List<EmbedFixerPattern>> GetPatternsFromCache(ulong guildId)
+  public async Task<List<EmbedFixerPattern>> GetPatternsFromCache(ulong guildId)
   {
     if (patternsCache.TryGetValue(guildId, out var patterns))
     {