public async Task HandleReactionAsync(ulong userId, ulong messageId, ulong channelId, IEmoji emoji, bool add)
{
// TODO: Cache valid reactions to reduce DB calls
using (var db = new DataContext())
{
Stopwatch sw = new Stopwatch();
sw.Start();
if (_cache.ExistsIgnore <ReactableRoleMessage>(messageId))
{
return;
}
var messageMatch = _cache.Retrieve <ReactableRoleMessage>(x => x.ChannelId == channelId && x.MessageId == messageId);
if (messageMatch == null)
{
messageMatch =
db.RoleMessages.FirstOrDefault(x => x.ChannelId == channelId && x.MessageId == messageId);
if (messageMatch != null)
{
// Populate cache
_cache.Put(messageMatch, TimeSpan.FromHours(1));
}
}
if (messageMatch == null)
{
_cache.PutIgnore <ReactableRoleMessage>(TimeSpan.FromHours(1), messageId);
return;
}
AssignableRole roleMatch;
if (emoji is CustomEmoji ce)
{
if (_cache.ExistsIgnore <AssignableRole>(messageMatch.GuildId, ce.Id.RawValue))
{
return;
}
roleMatch = _cache.Retrieve <AssignableRole>(x =>
x.GuildId == messageMatch.GuildId && x.EmojiId == ce.Id.RawValue) ??
db.Roles.FirstOrDefault(x =>
x.GuildId == messageMatch.GuildId && x.EmojiId == ce.Id.RawValue);
if (roleMatch == null)
{
_cache.PutIgnore <AssignableRole>(TimeSpan.FromHours(1), messageMatch.GuildId, ce.Id.RawValue);
return;
}
}
else if (emoji is Emoji em)
{
if (_cache.ExistsIgnore <AssignableRole>(messageMatch.GuildId, em.Name))
{
return;
}
roleMatch = _cache.Retrieve <AssignableRole>(x =>
x.GuildId == messageMatch.GuildId && x.EmojiName == em.Name) ??
db.Roles.FirstOrDefault(x =>
x.GuildId == messageMatch.GuildId && x.EmojiName == em.Name);
if (roleMatch == null)
{
_cache.PutIgnore <AssignableRole>(TimeSpan.FromHours(1), messageMatch.GuildId, em.Name);
return;
}
}
else
{
return;
}
_cache.Put(roleMatch, TimeSpan.FromHours(1));
#if DEBUG
await Bot.SendMessageAsync(channelId, $"{sw.ElapsedMilliseconds}ms elapsed");
#endif
if (add)
{
await Bot.GrantRoleAsync(messageMatch.GuildId, userId, roleMatch.RoleId);
}
else
{
await Bot.RevokeRoleAsync(messageMatch.GuildId, userId, roleMatch.RoleId);
}
}
}
