Octobot/src/Responders/MessageReceivedResponder.cs

using JetBrains.Annotations;
using Remora.Discord.API.Abstractions.Gateway.Events;
using Remora.Discord.API.Abstractions.Rest;
using Remora.Discord.Gateway.Responders;
using Remora.Rest.Core;
using Remora.Results;

namespace Octobot.Responders;

/// <summary>
///     Handles sending replies to easter egg messages.
/// </summary>
[UsedImplicitly]
public class MessageCreateResponder : IResponder<IMessageCreate>
{
    private readonly IDiscordRestChannelAPI _channelApi;

    public MessageCreateResponder(IDiscordRestChannelAPI channelApi)
    {
        _channelApi = channelApi;
    }

    public Task<Result> RespondAsync(IMessageCreate gatewayEvent, CancellationToken ct = default)
    {
        _ = _channelApi.CreateMessageAsync(
            gatewayEvent.ChannelID, ct: ct, content: gatewayEvent.Content.ToLowerInvariant() switch
            {
                "whoami" => "`nobody`",
                "сука !!" => "`root`",
                "воооо" => "`removing /...`",
                "пон" => "https://i.ibb.co/Kw6QVcw/parry.jpg",
                "++++" => "#",
                "осу" => "https://github.com/ppy/osu",
                "лан" => "https://i.ibb.co/VYH2QLc/lan.jpg",
                _ => default(Optional<string>)
            });
        return Task.FromResult(Result.Success);
    }
}