using System;

namespace ET.Server
{
    /// <summary>
    /// 选角绑定角色
    /// </summary>
    [MessageHandler(SceneType.Game)]
    public class C2G_BindPlayerHandler: AMRpcHandler<C2G_BindPlayer, G2C_BindPlayer>
    {
        protected override async ETTask Run(Session session, C2G_BindPlayer request, G2C_BindPlayer response, Action reply)
        {
            if (session.DomainScene().SceneType != SceneType.Game)
            {
                Log.Debug($"Game 请求的Scene错误...SceneType={session.DomainScene().SceneType}");
                session.Dispose();
                return;
            }

            Scene scene = session.DomainScene();

            PlayerInfo playerInfo;

            if (request.PlayerId <= 0)
            {
                long _id = IdGenerater.Instance.GenerateUnitId(scene.DomainZone());
                // 简易版登录,直接创建一个player
                using (await CoroutineLockComponent.Instance.Wait(CoroutineLockType.CreatePlayer, _id.ToString().Trim().GetHashCode()))
                {
                    playerInfo = new PlayerInfo();
                    playerInfo.Id = _id;
                    playerInfo.UserId = request.UserId;
                    playerInfo.Name = "玩家-" + _id;
                    playerInfo.Sex = 0;
                    playerInfo.Pro = 0;
                    playerInfo.Level = 1;
                    playerInfo.Exp = 0;

                    await DBManagerComponent.Instance.GetZoneDB(session.DomainZone()).Save(playerInfo);
                }
            }
            else
            {
                // 正常选角,判断参数
                if (!session.GetComponent<SessionPlayerComponent>().PlayerList.ContainsKey(request.PlayerId))
                {
                    Log.Debug($"选角出错,没有选择的角色");
                    response.Error = ErrorCode.ERR_BindPlayerError;
                    reply();
                    return;
                }

                playerInfo = session.GetComponent<SessionPlayerComponent>().PlayerList[request.PlayerId];

                if (playerInfo == null)
                {
                    Log.Debug($"选角出错,没有选择的角色");
                    response.Error = ErrorCode.ERR_BindPlayerError;
                    reply();
                    return;
                }

                long bindPlayerId = session.GetComponent<SessionPlayerComponent>().PlayerId;

                switch (bindPlayerId)
                {
                    case > 0 when bindPlayerId == request.PlayerId:
                        Log.Debug($"该角色已经绑定");
                        response.Error = ErrorCode.ERR_PlayerIdIsBind;
                        reply();
                        return;
                    case > 0 when bindPlayerId != request.PlayerId:
                        // todo 老角色下线

                        break;
                }
            }

            WNPlayer player = scene.GetComponent<GamePlayerComponent>().Get(request.PlayerId);

            if (player != null)
            {
                // todo 顶号
            }

            player ??= scene.GetComponent<GamePlayerComponent>()
                    .AddChildWithId<WNPlayer, Session, PlayerInfo>(playerInfo.Id, session, playerInfo);

            session.AddComponent<MailBoxComponent, MailboxType>(MailboxType.GateSession);

            session.GetComponent<SessionPlayerComponent>().PlayerId = request.PlayerId;

            // todo 分配场景
            Map map = MapHelper.BindPlayerDispatch(player);
            MapConfig mapConfig = map.Prop;

            // 登录数据
            player.OnLogin();
            map.OnPlayerLogin(player);

            response.Player = PlayerHelper.PlayerInfoToProto(player);
            response.Player.areaId = mapConfig.TemplateID;
            response.Player.instanceId = map.InstanceId;
            response.Player.mapId = map.MapId;

            reply();
            await ETTask.CompletedTask;
        }
    }
}