using SharpChat.SockChat.S2CPackets;

namespace SharpChat.ClientCommands {
    public class JoinChannelClientCommand : ClientCommand {
        public bool IsMatch(ClientCommandContext ctx) {
            return ctx.NameEquals("join");
        }

        public async Task Dispatch(ClientCommandContext ctx) {
            long msgId = ctx.Chat.RandomSnowflake.Next();
            string joinChanStr = ctx.Args.FirstOrDefault() ?? "Channel";
            Channel? joinChan = ctx.Chat.Channels.FirstOrDefault(c => c.NameEquals(joinChanStr));

            if(joinChan is null) {
                await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.CHANNEL_NOT_FOUND, true, joinChanStr));
                await ctx.Chat.ForceChannel(ctx.User);
                return;
            }

            await ctx.Chat.SwitchChannel(ctx.User, joinChan, string.Join(' ', ctx.Args.Skip(1)));
        }
    }
}