refactor: move message responders to their own namespace
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4 changed files with 4 additions and 4 deletions
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@ -1,151 +0,0 @@
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using Catalogger.Backend.Cache.InMemoryCache;
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using Catalogger.Backend.Database;
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using Catalogger.Backend.Database.Queries;
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using Catalogger.Backend.Extensions;
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using Catalogger.Backend.Services;
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using Remora.Discord.API;
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using Remora.Discord.API.Abstractions.Gateway.Events;
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using Remora.Discord.API.Abstractions.Objects;
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using Remora.Discord.API.Gateway.Events;
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using Remora.Discord.API.Objects;
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using Remora.Discord.Extensions.Embeds;
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using Remora.Discord.Gateway.Responders;
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using Remora.Results;
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namespace Catalogger.Backend.Bot.Responders;
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public class MessageUpdateResponder(
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ILogger logger,
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DatabaseContext db,
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ChannelCache channelCache,
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UserCache userCache,
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MessageRepository messageRepository,
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WebhookExecutorService webhookExecutor,
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PluralkitApiService pluralkitApi) : IResponder<IMessageUpdate>
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{
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private readonly ILogger _logger = logger.ForContext<MessageUpdateResponder>();
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public async Task<Result> RespondAsync(IMessageUpdate evt, CancellationToken ct = default)
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{
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// Discord only *very* recently changed message update events to have all fields,
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// so we convert the event to a MessageCreate to avoid having to unwrap every single field
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var msg = ConvertToMessageCreate(evt);
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if (!msg.GuildID.IsDefined())
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{
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_logger.Debug("Received message create event for message {MessageId} despite it not being in a guild",
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msg.ID);
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return Result.Success;
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}
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var guildConfig = await db.GetGuildAsync(msg.GuildID.Value, ct);
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if (await messageRepository.IsMessageIgnoredAsync(msg.ID.Value, ct))
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{
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_logger.Debug("Message {MessageId} should be ignored", msg.ID);
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return Result.Success;
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}
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try
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{
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var logChannel = webhookExecutor.GetLogChannel(guildConfig, LogChannelType.MessageUpdate, msg.ChannelID,
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msg.Author.ID.Value);
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if (logChannel == null) return Result.Success;
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var oldMessage = await messageRepository.GetMessageAsync(msg.ID.Value, ct);
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if (oldMessage == null)
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{
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logger.Debug("Message {Id} was edited and should be logged but is not in the database", msg.ID);
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return Result.Success;
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}
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if (oldMessage.Content == msg.Content ||
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(oldMessage.Content == "None" && string.IsNullOrEmpty(msg.Content))) return Result.Success;
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var user = msg.Author;
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if (msg.Author.ID != oldMessage.UserId)
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{
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var systemAccount = await userCache.GetUserAsync(DiscordSnowflake.New(oldMessage.UserId));
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if (systemAccount != null) user = systemAccount;
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}
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var embedBuilder = new EmbedBuilder()
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.WithAuthor(user.Tag(), null, user.AvatarUrl())
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.WithTitle("Message edited")
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.WithDescription(oldMessage.Content)
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.WithColour(DiscordUtils.Purple)
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.WithFooter($"ID: {msg.ID}")
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.WithTimestamp(msg.ID.Timestamp);
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var fields = ChunksUpTo(msg.Content, 1000)
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.Select<string, IEmbedField>((s, i) =>
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new EmbedField($"New content{(i != 0 ? " (cont.)" : "")}", s, false))
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.ToList();
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embedBuilder.SetFields(fields);
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string channelMention;
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if (!channelCache.TryGet(msg.ChannelID, out var channel))
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channelMention = $"<#{msg.ChannelID}>";
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else if (channel.Type is ChannelType.AnnouncementThread or ChannelType.PrivateThread
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or ChannelType.PublicThread)
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channelMention =
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$"<#{channel.ParentID.Value}>\nID: {channel.ParentID.Value}\n\nThread: {channel.Name} (<#{channel.ID}>)";
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else channelMention = $"<#{channel.ID}>\nID: {channel.ID}";
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embedBuilder.AddField("Channel", channelMention, true);
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embedBuilder.AddField("Sender", $"<@{user.ID}>\n{user.Tag()}\nID: {user.ID}", true);
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if (oldMessage is { System: not null, Member: not null })
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{
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embedBuilder.WithTitle($"Message by {msg.Author.Username} edited");
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embedBuilder.AddField("\u200b", "**PluralKit information**", false);
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embedBuilder.AddField("System ID", oldMessage.System, true);
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embedBuilder.AddField("Member ID", oldMessage.Member, true);
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}
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embedBuilder.AddField("Link", $"https://discord.com/channels/{msg.GuildID}/{msg.ChannelID}/{msg.ID}");
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await webhookExecutor.QueueLogAsync(logChannel.Value, embedBuilder.Build().GetOrThrow());
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return Result.Success;
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}
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finally
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{
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// Messages should be *saved* if any of the message events are enabled for this channel, but should only
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// be *logged* if the MessageUpdate event is enabled, so we check if we should save here.
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// You also can't return early in `finally` blocks, so this has to be nested :(
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if (webhookExecutor.GetLogChannel(guildConfig, LogChannelType.MessageUpdate, msg.ChannelID,
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msg.Author.ID.Value) != null || webhookExecutor.GetLogChannel(guildConfig,
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LogChannelType.MessageDelete, msg.ChannelID,
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msg.Author.ID.Value) != null || webhookExecutor.GetLogChannel(guildConfig,
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LogChannelType.MessageDeleteBulk, msg.ChannelID,
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msg.Author.ID.Value) != null)
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{
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if (!await messageRepository.UpdateMessageAsync(msg, ct) && msg.ApplicationID.Is(DiscordUtils.PkUserId))
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{
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_logger.Debug(
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"Message {MessageId} wasn't stored yet and was proxied by PluralKit, fetching proxy information from its API",
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msg.ID);
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var pkMsg = await pluralkitApi.GetPluralKitMessageAsync(msg.ID.Value, ct);
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if (pkMsg != null)
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await messageRepository.SetProxiedMessageDataAsync(msg.ID.Value, pkMsg.Original, pkMsg.Sender,
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pkMsg.System?.Id, pkMsg.Member?.Id);
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}
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}
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}
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}
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private static MessageCreate ConvertToMessageCreate(IMessageUpdate evt) => new(evt.GuildID, evt.Member,
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evt.Mentions.GetOrThrow(), evt.ID.GetOrThrow(), evt.ChannelID.GetOrThrow(), evt.Author.GetOrThrow(),
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evt.Content.GetOrThrow(), evt.Timestamp.GetOrThrow(), evt.EditedTimestamp.GetOrThrow(), IsTTS: false,
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evt.MentionsEveryone.GetOrThrow(), evt.MentionedRoles.GetOrThrow(), evt.MentionedChannels,
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evt.Attachments.GetOrThrow(), evt.Embeds.GetOrThrow(), evt.Reactions, evt.Nonce, evt.IsPinned.GetOrThrow(),
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evt.WebhookID, evt.Type.GetOrThrow(), evt.Activity, evt.Application, evt.ApplicationID, evt.MessageReference,
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evt.Flags, evt.ReferencedMessage, evt.Interaction, evt.Thread, evt.Components, evt.StickerItems, evt.Position,
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evt.Resolved, evt.InteractionMetadata, evt.Poll);
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private static IEnumerable<string> ChunksUpTo(string str, int maxChunkSize)
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{
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for (var i = 0; i < str.Length; i += maxChunkSize)
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yield return str.Substring(i, Math.Min(maxChunkSize, str.Length - i));
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}
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}
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