using Ryujinx.Common.Logging;
using Ryujinx.HLE.HOS.Ipc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;

using static Ryujinx.HLE.HOS.ErrorCode;

namespace Ryujinx.HLE.HOS.Services.Nifm
{
    class IGeneralService : IpcService
    {
        private Dictionary<int, ServiceProcessRequest> _commands;

        public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;

        public IGeneralService()
        {
            _commands = new Dictionary<int, ServiceProcessRequest>
            {
                { 4, CreateRequest        },
                { 12, GetCurrentIpAddress }
            };
        }

        public long CreateRequest(ServiceCtx context)
        {
            int unknown = context.RequestData.ReadInt32();

            MakeObject(context, new IRequest(context.Device.System));

            Logger.PrintStub(LogClass.ServiceNifm);

            return 0;
        }

        public long GetCurrentIpAddress(ServiceCtx context)
        {
            if (!NetworkInterface.GetIsNetworkAvailable())
            {
                return MakeError(ErrorModule.Nifm, NifmErr.NoInternetConnection);
            }

            IPHostEntry host = Dns.GetHostEntry(Dns.GetHostName());

            IPAddress address = host.AddressList.FirstOrDefault(a => a.AddressFamily == AddressFamily.InterNetwork);

            context.ResponseData.Write(BitConverter.ToUInt32(address.GetAddressBytes()));

            Logger.PrintInfo(LogClass.ServiceNifm, $"Console's local IP is \"{address}\".");

            return 0;
        }
    }
}