using Aurora;
using Aurora.View;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Input;

namespace AuroraLight.View
{
    public class UCLightViewModel : NotifyPropertyChangedBase
    {
        #region Binding Properties
        private int _nSliderValue;
        public int nSliderValue
        {
            get => _nSliderValue;
            set
            {
                try
                {
                    if (SetProperty(ref _nSliderValue, value))
                    {
                        if (_LightDevice != null && _LightDevice._light != null)
                            _LightDevice._light.SetLightValueInternal(cbChannel, value);
                    }
                } catch (Exception ex) {
                }

            }
        }
        private int _nSliderMax;
        public int nSliderMax { get => _nSliderMax; set => SetProperty(ref _nSliderMax, value); }
        private int _nChannel;
        public int nChannel { get => _nChannel; set => SetProperty(ref _nChannel, value); }

        private bool[] _buttonOnOffToggle;
        public bool[] buttonOnOffToggle { get => _buttonOnOffToggle; set => SetProperty(ref _buttonOnOffToggle, value); }
        private string _strButtonOnOff;
        public string strButtonOnOff { get => _strButtonOnOff; set => SetProperty(ref _strButtonOnOff, value); }
        private List<int> _lsChannel;
        public List<int> lsChannel { get => _lsChannel; set => SetProperty(ref _lsChannel, value); }
        private int _cbChannel;
        //public int cbChannel { get => _cbChannel; set => SetProperty(ref _cbChannel, value); }
        public int cbChannel
        {
            get => _cbChannel;
            set
            {
                _cbChannel = value;
                if (buttonOnOffToggle[_cbChannel]) strButtonOnOff = "ON";
                else strButtonOnOff = "OFF";
            }
        }

        #endregion
        int nChannelMax;

        #region EventCommands
        public ICommand CMD_LightOnOff { get; }
        public ICommand CMD_ALLLightOn { get; }
        public ICommand CMD_ALLLightOff { get; }

        #endregion

        private LightDevice _LightDevice;

        public UCLightViewModel(IAuroraEnvironment aurora, string deviceId, int LightVal)
        {
            _LightDevice = aurora.DeviceManager[deviceId] as LightDevice;

            #region Initialize Binding Properties
            // config 에서 읽어와서 update 해야한다. device 등록할 때 config 만든 config 를 받아올 것. 임시로 고정값 입력
            nSliderMax = 100;
            nSliderValue = 0;

            if (_LightDevice != null && _LightDevice._lightType == eLight.ERI) {
                // 안타깝게도 채널수나 config 는 추상화항목에 없다. 추후에 업데이트하겠음. 일단은 type convert 해서 가져옴
                // activate 된 후에나 class 생성이 된다. 클래스에서 property 를 가져올수없음
                //var lightdevice = _LightDevice as ERILight;
                //nChannel = lightdevice.GetChannelCount();
                nChannel = 4;
                nSliderMax = 255;
                nSliderValue = LightVal;
            } else nChannel = 8;

            if (lsChannel != null)
                lsChannel.Clear();
            else lsChannel = new List<int>();
            nChannelMax = nChannel; // default setting
            for (int i = 0; i < nChannelMax; i++)
                lsChannel.Add(i);
            buttonOnOffToggle = new bool[nChannel];
            for (int channel = 0; channel < nChannelMax; channel++) {
                buttonOnOffToggle[channel] = false;
                if (_LightDevice != null && _LightDevice._light != null) {
                    _LightDevice._light.SetLightValueInternal(channel, nSliderValue);
                }
            }
            strButtonOnOff = "OFF";

            #endregion

            #region DelegateCommands
            CMD_LightOnOff = new DelegateCommand(LightOnOff);
            CMD_ALLLightOn = new DelegateCommand(ALLLightOn);
            CMD_ALLLightOff = new DelegateCommand(ALLLightOff);

            #endregion
        }

        private void LightOnOff(object obj)
        {
            if (_LightDevice != null && _LightDevice._light != null)
            {
                if (buttonOnOffToggle[cbChannel] == true) {
                    // light on , button text on -> off toggle
                    _LightDevice._light.SetLightValueInternal(cbChannel, nSliderValue);

                    buttonOnOffToggle[cbChannel] = false;
                    strButtonOnOff = "OFF";
                } else {
                    // light off , button text off -> on toggle
                    _LightDevice._light.OffLightInternal(cbChannel);
                    buttonOnOffToggle[cbChannel] = true;
                    strButtonOnOff = "ON";
                }
            }
        }

        private void ALLLightOn(object obj)
        {
            if (_LightDevice != null && _LightDevice._light != null) {
                for (int channel = 0; channel < nChannelMax; channel++) {
                    _LightDevice._light.SetLightValueInternal(channel, nSliderValue);
                    buttonOnOffToggle[channel] = false;
                    strButtonOnOff = "OFF";
                }
            }
        }
        private void ALLLightOff(object obj)
        {
            if (_LightDevice != null && _LightDevice._light != null) {
                for (int channel = 0; channel < nChannelMax; channel++) {
                    _LightDevice._light.OffLightInternal(channel);
                    buttonOnOffToggle[channel] = true;
                    strButtonOnOff = "ON";
                }
            }
        }
        private void SetChannelMax(int nChannelMax)
        {
            lsChannel.Clear();
            for (int i = 0; i < nChannelMax; i++)
                lsChannel.Add(i);
        }
        private void SetLightDevice(ILight LightDevice)
        {
            _LightDevice._light = LightDevice;
        }

    }
}