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));
    }
}