106 lines
4.5 KiB
C#
106 lines
4.5 KiB
C#
using System.Linq;
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using System.Threading.Tasks;
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using Myriad.Gateway;
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namespace Myriad.Cache
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{
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public static class DiscordCacheExtensions
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{
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public static ValueTask HandleGatewayEvent(this IDiscordCache cache, IGatewayEvent evt)
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{
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switch (evt)
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{
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case GuildCreateEvent gc:
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return cache.SaveGuildCreate(gc);
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case GuildUpdateEvent gu:
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return cache.SaveGuild(gu);
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case GuildDeleteEvent gd:
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return cache.RemoveGuild(gd.Id);
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case ChannelCreateEvent cc:
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return cache.SaveChannel(cc);
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case ChannelUpdateEvent cu:
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return cache.SaveChannel(cu);
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case ChannelDeleteEvent cd:
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return cache.RemoveChannel(cd.Id);
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case GuildRoleCreateEvent grc:
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return cache.SaveRole(grc.GuildId, grc.Role);
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case GuildRoleUpdateEvent gru:
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return cache.SaveRole(gru.GuildId, gru.Role);
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case GuildRoleDeleteEvent grd:
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return cache.RemoveRole(grd.GuildId, grd.RoleId);
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case MessageReactionAddEvent mra:
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return cache.TrySaveDmChannelStub(mra.GuildId, mra.ChannelId);
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case MessageCreateEvent mc:
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return cache.SaveMessageCreate(mc);
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case MessageUpdateEvent mu:
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return cache.TrySaveDmChannelStub(mu.GuildId.Value, mu.ChannelId);
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case MessageDeleteEvent md:
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return cache.TrySaveDmChannelStub(md.GuildId, md.ChannelId);
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case MessageDeleteBulkEvent md:
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return cache.TrySaveDmChannelStub(md.GuildId, md.ChannelId);
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case ThreadCreateEvent tc:
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return cache.SaveChannel(tc);
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case ThreadUpdateEvent tu:
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return cache.SaveChannel(tu);
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case ThreadDeleteEvent td:
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return cache.RemoveChannel(td.Id);
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case ThreadListSyncEvent tls:
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return cache.SaveThreadListSync(tls);
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}
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return default;
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}
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public static ValueTask TryUpdateSelfMember(this IDiscordCache cache, Shard shard, IGatewayEvent evt)
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{
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if (evt is GuildCreateEvent gc)
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return cache.SaveSelfMember(gc.Id, gc.Members.FirstOrDefault(m => m.User.Id == shard.User?.Id)!);
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if (evt is MessageCreateEvent mc && mc.Member != null && mc.Author.Id == shard.User?.Id)
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return cache.SaveSelfMember(mc.GuildId!.Value, mc.Member);
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if (evt is GuildMemberAddEvent gma && gma.User.Id == shard.User?.Id)
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return cache.SaveSelfMember(gma.GuildId, gma);
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if (evt is GuildMemberUpdateEvent gmu && gmu.User.Id == shard.User?.Id)
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return cache.SaveSelfMember(gmu.GuildId, gmu);
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return default;
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}
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private static async ValueTask SaveGuildCreate(this IDiscordCache cache, GuildCreateEvent guildCreate)
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{
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await cache.SaveGuild(guildCreate);
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foreach (var channel in guildCreate.Channels)
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// The channel object does not include GuildId for some reason...
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await cache.SaveChannel(channel with { GuildId = guildCreate.Id });
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foreach (var member in guildCreate.Members)
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await cache.SaveUser(member.User);
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foreach (var thread in guildCreate.Threads)
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await cache.SaveChannel(thread);
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}
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private static async ValueTask SaveMessageCreate(this IDiscordCache cache, MessageCreateEvent evt)
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{
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await cache.TrySaveDmChannelStub(evt.GuildId, evt.ChannelId);
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await cache.SaveUser(evt.Author);
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foreach (var mention in evt.Mentions)
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await cache.SaveUser(mention);
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}
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private static ValueTask TrySaveDmChannelStub(this IDiscordCache cache, ulong? guildId, ulong channelId)
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{
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// DM messages don't get Channel Create events first, so we need to save
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// some kind of stub channel object until we get the real one
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return guildId != null ? default : cache.SaveDmChannelStub(channelId);
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}
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private static async ValueTask SaveThreadListSync(this IDiscordCache cache, ThreadListSyncEvent evt)
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{
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foreach (var thread in evt.Threads)
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await cache.SaveChannel(thread);
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}
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}
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} |