using Aurora;
using static AuroraPLC.PLCBase;

namespace AuroraPLC.Views
{

    public class PLCStatic
    {
        #region PLC 뷰 관련
        // 뷰모델 For Bit & Word
        private static UCPLCBitViewModel ViewModelBitMonitor { get; set; }
        private static UCPLCBitViewModel ViewModelMBitMonitor { get; set; }
        private static UCPLCWordViewModel ViewModelWordMonitor { get; set; }
        private static UCPLCWordViewModel ViewModelDWordMonitor { get; set; }

        // 동기화를 위한 뮤텍스
        private static readonly object _lockBitVM = new object();
        private static readonly object _lockWordVM = new object();

        // 싱글톤 패턴으로 구현
        public static UCPLCBitViewModel GetInstanceBitVM(IAuroraEnvironment auroraEnv, string deviceID, ePLCNetType netType, ePLCDevice device = ePLCDevice.B)
        {
            if (device == ePLCDevice.M) {
                if (ViewModelMBitMonitor is null) {
                    lock (_lockBitVM) {
                        if (ViewModelMBitMonitor is null) {
                            ViewModelMBitMonitor = new UCPLCBitViewModel(auroraEnv, deviceID, netType, device);
                        }
                    }
                }
                return ViewModelMBitMonitor;
            } else {
                if (ViewModelBitMonitor is null) {
                    lock (_lockBitVM) {
                        if (ViewModelBitMonitor is null) {
                            ViewModelBitMonitor = new UCPLCBitViewModel(auroraEnv, deviceID, netType, device);
                        }
                    }
                }
                return ViewModelBitMonitor;
            }
        }

        public static UCPLCWordViewModel GetInstanceWordVM(IAuroraEnvironment auroraEnv, string deviceID, ePLCNetType netType, ePLCDevice device = ePLCDevice.W)
        {
            if (device == ePLCDevice.D) {
                if (ViewModelDWordMonitor is null) {
                    lock (_lockWordVM) {
                        if (ViewModelDWordMonitor is null) {
                            ViewModelDWordMonitor = new UCPLCWordViewModel(auroraEnv, deviceID, netType, device);
                        }
                    }
                }
                return ViewModelDWordMonitor;
            } else {
                if (ViewModelWordMonitor is null) {
                    lock (_lockWordVM) {
                        if (ViewModelWordMonitor is null) {
                            ViewModelWordMonitor = new UCPLCWordViewModel(auroraEnv, deviceID, netType, device);
                        }
                    }
                }
                return ViewModelWordMonitor;
            }
        }


        public static bool IsViewEnabled { get; set; } = true;
        #endregion
    }
}