using SharpChat.S2CPackets;
using System.Net;

namespace SharpChat.ClientCommands {
    public class RemoteAddressClientCommand : ClientCommand {
        public bool IsMatch(ClientCommandContext ctx) {
            return ctx.NameEquals("ip")
                || ctx.NameEquals("whois");
        }

        public void Dispatch(ClientCommandContext ctx) {
            long msgId = ctx.Chat.RandomSnowflake.Next();

            if(!ctx.User.Can(UserPermissions.SeeIPAddress)) {
                ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.COMMAND_NOT_ALLOWED, true, "/ip"));
                return;
            }

            string? ipUserStr = ctx.Args.FirstOrDefault();
            User? ipUser = null;

            if(string.IsNullOrWhiteSpace(ipUserStr) || (ipUser = ctx.Chat.Users.FirstOrDefault(u => u.NameEquals(ipUserStr))) == null) {
                ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.USER_NOT_FOUND, true, ipUserStr ?? "User"));
                return;
            }

            foreach(IPAddress ip in ctx.Chat.GetRemoteAddresses(ipUser))
                ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.IP_ADDRESS, false, ipUser.UserName, ip));
        }
    }
}