using SharpChat.Bans;
using SharpChat.SockChat.S2CPackets;
using System.Net;

namespace SharpChat.ClientCommands {
    public class PardonAddressClientCommand(BansClient bansClient) : ClientCommand {
        public bool IsMatch(ClientCommandContext ctx) {
            return ctx.NameEquals("pardonip")
                || ctx.NameEquals("unbanip");
        }

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

            if(!ctx.User.Can(UserPermissions.BanUser | UserPermissions.KickUser)) {
                await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.COMMAND_NOT_ALLOWED, true, $"/{ctx.Name}"));
                return;
            }

            string? unbanAddrTarget = ctx.Args.FirstOrDefault();
            if(string.IsNullOrWhiteSpace(unbanAddrTarget) || !IPAddress.TryParse(unbanAddrTarget, out IPAddress? unbanAddr)) {
                await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.COMMAND_FORMAT_ERROR));
                return;
            }

            unbanAddrTarget = unbanAddr.ToString();

            BanInfo? banInfo = await bansClient.BanGetAsync(remoteAddr: unbanAddr);
            if(banInfo?.Kind != BanKind.IPAddress) {
                await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.USER_NOT_BANNED, true, unbanAddrTarget));
                return;
            }

            if(await bansClient.BanRevokeAsync(banInfo))
                await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.USER_UNBANNED, false, unbanAddrTarget));
            else
                await ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.USER_NOT_BANNED, true, unbanAddrTarget));
        }
    }
}