using System;
using System.Drawing;
using System.Linq;
using System.Text.RegularExpressions;

namespace ET.Server
{
    /// <summary>
    /// 加入房间
    /// </summary>
    [MessageHandler(SceneType.Game)]
    public class C2G_JoinRoomHandler : AMRpcHandler<C2G_JoinRoom, G2C_JoinRoom>
    {
        protected override async ETTask Run(Session session, C2G_JoinRoom request, G2C_JoinRoom response, Action reply)
        {
            Player player = session.GetComponent<SessionPlayerComponent>().GetMyPlayer();
            if (player == null)
            {
                response.Error = ErrorCode.ERR_OperationError;
                response.Message = "玩家不存在或离线...";
                reply();
                return;
            }
            // 判断参数
            if (request.RoomId <= 0)
            {
                response.Error = ErrorCode.ERR_ParameterError;
                response.Message = "参数错误，房间号有误...";
                reply();
                return;
            }

            // 判断玩家是否在其他房间
            if (player.RoomId > 0 && request.RoomId != player.RoomId)
            { 
                response.Error = ErrorCode.ERR_OperationError;
                response.Message = "玩家已在房间，不可加入其他房间...";
                reply();
                return;
            }
            
            Scene scene = session.DomainScene();
            
            // 请求的房间是否能找到
            Room room = scene.GetComponent<GameRoomComponent>().Get(request.RoomId);
            if (room == null)
            {
                response.Error = ErrorCode.ERR_OperationError;
                response.Message = "请求的房间不存在或已解散...";
                reply();
                return;
            }

            // todo 玩家是否可以观战，如果可以 下面的判断屏蔽
            // 房间人数是否已满
            if (room.PlayerIsMax())
            {
                response.Error = ErrorCode.ERR_OperationError;
                response.Message = "房间人数已满，不可进入...";
                reply();
                return;
            }
            
            // 房间状态是否可进入
            HGHuangHuangComponent hgHuangHuangComponent = room.GetComponent<HGHuangHuangComponent>();
            if (hgHuangHuangComponent != null && hgHuangHuangComponent.State != 0)
            {
                response.Error = ErrorCode.ERR_OperationError;
                response.Message = "房间已开始，不可进入...";
                reply();
                return;
            }
            
            // 是否已经在房间
            if (!room.GetAllPlayers().ContainsKey(player.Id))
            {
                // 加入玩家
                room.Add(player);
            
                // 绑定玩家房间
                player.RoomId = room.RoomId;
            }
            
            // 广播玩家加入房间
            foreach (Player p in room.GetAllPlayers().Values.Where(p => p != null))
            {
                MessageHelper.SendToClient(p, new G2C_JoinRoomPush(){info = ProtoHelper.RoomToProto(room, p, null)});
            }
            
            reply();
            await ETTask.CompletedTask;
        }
    }
}