//	Declaration of class CGameServer
//	Author: ShiXingdong
//	Last modify: Jun 2nd, 2002

#include <memory.h>
#include "global.h"
#include "GameServer.h"
#include "UserInfo.h"
#include "UserManager.h"
#include "GameManager.h"
#include <winsock2.h>
#include <string>
using namespace std;

static CUserManager UserManager;	//用戶管理器
static CGameManager GameManager;	//游戲管理器


bool g_RecepFunc(SOCKET sct)	//用來響應客戶端請求的函數
{
	int OpNum,length,result,RoomNum;
	unsigned int UserID=(unsigned int)sct;
	ACTION action;
	char UserName[256];
	CUserInfo user;
	GAMERESULT gameresult;

	recv(sct,(char*)&OpNum,4,0);	//得到用戶請求的代號
	switch(OpNum)
	{
		case QUERY_USERS:	//查詢用戶信息
			length=UserManager.GetUserCount() * sizeof(CUserInfo);
			send(sct,(char*)&length,4,0);
			send(sct,(const char*)UserManager.GetAllUser(),length,0);
			break;

		case ENTER_ROOM:	//進入游戲室
			if(recv(sct,(char*)&RoomNum,4,0)==SOCKET_ERROR)
				break;
			result=GameManager.AddUser(UserID,RoomNum)&&UserManager.SetRoomNum(UserID,RoomNum)?OK:FAILED;
			send(sct,(char*)&result,4,0);
			break;

		case EXIT_ROOM:		//退出游戲室
			result=GameManager.DeleteUser(UserID)&&UserManager.SetRoomNum(UserID,0)?OK:FAILED;
			send(sct,(char*)&result,4,0);
			break;

		case USER_ACTION:	//用戶作出動作
			if(recv(sct,(char*)&length,4,0)==SOCKET_ERROR)
				break;
			if(recv(sct,(char*)&action,length,0)==SOCKET_ERROR)
				break;
			if( !GameManager.IsReady(UserID) ||
				GameManager.GetNextPlayerID(UserID)!=UserID)
			{
				gameresult.GameEnd=false;
				gameresult.NextPlayerID=GameManager.GetNextPlayerID(UserID);
				result=FAILED;
			}
			else
			{
				action.UserID=UserID;
				gameresult=GameManager.UserPlay(action);
				result=OK;
			}
			send(sct,(char*)&result,4,0);
			length=225;
			send(sct,(char*)&length,4,0);
			send(sct,GameManager.GetGameInfo(UserID),length,0);
			if(gameresult.GameEnd)
				GameManager.RestartGame(UserID);
			break;

		case QUERY_BOARD:	//查詢棋盤信息
			length=225;
			send(sct,(char*)&length,4,0);
			send(sct,GameManager.GetGameInfo(UserID),length,0);
			break;

		case REGISTER_USER:	//注冊用戶
			if(recv(sct,(char*)&length,4,0)==SOCKET_ERROR)
				break;
			if(recv(sct,(char*)UserName,length,0)==SOCKET_ERROR)
				break;
			UserName[length]='\0';
			user.SetID(UserID);
			user.SetName(UserName);
			user.SetIP("Unknown");
			result=UserManager.AddUser(user)?OK:FAILED;
			send(sct,(char*)&result,4,0);
			break;
			
		case LOGOUT:	//注銷用戶
			UserManager.DeleteUser(UserID);
	}
	return(true);
}

bool CGameServer::IsOK() const
{
	return(CTCPServer::IsOK());
}

bool CGameServer::TurnOn()
{
	return(CTCPServer::TurnOn());
}

bool CGameServer::TurnOff()
{
	return(CTCPServer::TurnOff());
}

string CGameServer::GetServerIP()
{
	return(GetIPAddr());
}

CGameServer::CGameServer(unsigned short nPortNum):CTCPServer(nPortNum)
{
	SetReceptionist(g_RecepFunc);	//設置相應用戶請求的函數
}