using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


using USER_GUID = System.String;

namespace GameServer;

public class ReservationManager : ReservationManagerBase
{
    public ReservationManager()
    {
        base.onInit(GameServerApp.getServerLogic());
    }

    protected override async Task<bool> checkReservationCondition(ServerMoveType moveType, USER_GUID reservationUserGuid)
    {
        // 1. server block 체크
        var block_enable = GameServerApp.getServerLogic().getAccountLoginBlockEnable();
        if (true == block_enable.Value)
        {
            return false;
        }
        
        // 2. 기존 예약 유저 체크
        if (m_reservation_user_manager.checkReserved(reservationUserGuid))
        {
            return true;
        }
        
        // 3. return user 체크
        if (GameServerApp.getServerLogic().getReturnManager().isReturnUser(reservationUserGuid))
            return true;
        
        // 4. free count 체크 ( 리턴으로 인한 예약이면 return_count 에 포함되는 인원임 )
        var free_count = await checkFreeSessionCount();
        
        // 5. Force 이동 체크
        if (moveType == ServerMoveType.Force && free_count >= 1) 
            return true;
        
        // 6. 입장 허용치 계산
        return calculateConnectionRate(free_count);
    }
    
    protected override async Task<int> checkFreeSessionCount()
    {
        await Task.CompletedTask;

        var server_logic = GameServerApp.getServerLogic();
        var pround_net_listener = server_logic.getProudNetListener();
        var max_connection_count = pround_net_listener.getMaxConnectionCount();
        
        // 잔여 공간 계산 : MaxCount - ( 유저 Connection 수 + 입장 예약자 수 + 리턴 예약자 수 + 비컨 설치 수 )
        var delete_count = pround_net_listener.getEntityWithSessions().Count + m_reservation_user_manager.Count + server_logic.getReturnManager().getReturnUserCount() + UgcNpcCountManager.Instance.calculateNpcCount();
        var free_count = max_connection_count - delete_count;

        return free_count;
    }
}