using SharpChat.EventStorage; using SharpChat.SockChat.S2CPackets; namespace SharpChat.ClientCommands; public class DeleteMessageClientCommand : ClientCommand { public bool IsMatch(ClientCommandContext ctx) { return ctx.NameEquals("delmsg") || ( ctx.NameEquals("delete") && ctx.Args.FirstOrDefault()?.All(char.IsDigit) == true ); } public async Task Dispatch(ClientCommandContext ctx) { long msgId = ctx.Chat.RandomSnowflake.Next(); bool deleteAnyMessage = ctx.User.Can(UserPermissions.DeleteAnyMessage); if(!deleteAnyMessage && !ctx.User.Can(UserPermissions.DeleteOwnMessage)) { await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.COMMAND_NOT_ALLOWED, true, $"/{ctx.Name}")); return; } string? firstArg = ctx.Args.FirstOrDefault(); if(string.IsNullOrWhiteSpace(firstArg) || !firstArg.All(char.IsDigit) || !long.TryParse(firstArg, out long delSeqId)) { await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.COMMAND_FORMAT_ERROR)); return; } StoredEventInfo? delMsg = ctx.Chat.Events.GetEvent(delSeqId); if(delMsg?.Sender is null || delMsg.Sender.Rank > ctx.User.Rank || (!deleteAnyMessage && delMsg.Sender.UserId != ctx.User.UserId)) { await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.MESSAGE_DELETE_ERROR)); return; } ctx.Chat.Events.RemoveEvent(delMsg); await ctx.Chat.Send(new ChatMessageDeleteS2CPacket(delMsg.Id)); } }