using PaintDotNet.Base.SettingModel;
using PaintDotNet.Camera;
using System;
using System.Threading;
using System.Windows.Forms;

namespace PaintDotNet.ImageCollect
{
    public partial class AdjustExposureControl : UserControl
    {
        private ICamera m_camera;
        private CameraParamModel.ParameterSets _settings;

        private void InitializeLanguageText()
        {
            this.cmpLight.Caption = PdnResources.GetString("Menu.Exposurepercentage.text");
            this.lblExp.Text = PdnResources.GetString("Menu.timeofexposure.text");

            this.groupBox1.Text = PdnResources.GetString("Menu.timeofexposure.text");
            this.ckbAutoExposure.Text = PdnResources.GetString("Menu.auto-exposure.text");
            this.btnAutoExposureOnce.Text = PdnResources.GetString("Menu.Oneautomaticexposure.Text");

            this.groupBox2.Text = PdnResources.GetString("Menu.Gainvalueadjustment.text");
            this.cmpGain.Caption = PdnResources.GetString("Menu.imagecapture.adjust.Gain.text");

        }

        public AdjustExposureControl(int mode = 3)
        {
            InitializeComponent();
            var height = 8;
            if ((mode & 1) > 0)
            {
                height += groupBox1.Height;
            }
            else
            {
                groupBox1.Hide();
            }
            if ((mode & 2) > 0)
            {
                height += groupBox2.Height;
            }
            else
            {
                groupBox2.Hide();
            }
            Height = height;
        }


        public void Initialize(CameraParamModel model)
        {
            InitializeLanguageText();
            m_camera = CameraManager.CurrentCamera;
            _settings = model.parame;
            if (m_camera.IsOpen())
            {
                ckbAutoExposure.Checked = m_camera.AutoExposure == 1;// _settings.ATExposure == 1;

                // 曝光时间
                var range = m_camera.GetExposureTimeRange();
                SetExposureBarRange(range.Min, range.Max);
                SetExposureBarValue(m_camera.ExposureTime);
                txbExposure.Text = m_camera.ExposureTime.ToString("f3");

                // 亮度
                range = m_camera.GetLightRange();
                cmpLight.Max = (int)range.Max;
                cmpLight.Min = (int)range.Min;
                cmpLight.OnValueChange += CmpLight_OnValueChange;
                cmpLight.Tag = range;
                cmpLight.Value = m_camera.Light;

                //增益
                range = m_camera.GetGlobalGainRange();
                cmpGain.Max = (int)range.Max;
                cmpGain.Min = (int)range.Min;
                cmpGain.OnValueChange += CmpGain_OnValueChange;
                _settings = model.parame;


                if (ckbAutoExposure.Checked)
                {
                    SetAutoExposure();
                }
                else
                {
                    SetFixedExposure();
                }
            }
        }

        private void CmpGain_OnValueChange(double obj)
        {
            m_camera.Gain = (int)obj;
            _settings.GlobalGain = (int)obj;
        }

        private void CmpLight_OnValueChange(double obj)
        {
            var value = (int)obj;
            _settings.GlobalGain = value;
            m_camera.Light = value;
        }
        public void OnTimerAutoExposure()
        {
            cmpGain.Value = m_camera.Gain;
            txbExposure.Text = m_camera.ExposureTime.ToString("f3");
            SetExposureBarValue(m_camera.ExposureTime);
        }

        private void ckbAutoExposure_Click(object sender, EventArgs e)
        {
            var isAuto = ckbAutoExposure.Checked;
            if (isAuto)
                SetAutoExposure();
            else
                SetFixedExposure();
        }

        private void btnAutoExposureOnce_Click(object sender, EventArgs e)
        {
            SetAutoExposure();
            ckbAutoExposure.Checked = false;
            new Thread(() =>
            {
                Thread.Sleep(1000);
                SetFixedExposure();
                this.Invoke(new Action(OnTimerAutoExposure));
            }).Start();
        }

        void SetAutoExposure()
        {
            _settings.ATExposure = 1;
            m_camera.AutoExposure = 1;
        }

        void SetFixedExposure()
        {
            _settings.ATExposure = 0;
            m_camera.AutoExposure = 0;
        }

        /// <summary>
        /// 刷新控件状态
        /// </summary>
        public void UpdateDisplay()
        {
            var isAuto = ckbAutoExposure.Checked;
            panel1.Enabled = !isAuto;
            cmpGain.Enabled = !isAuto;
            if (isAuto)//固定曝光
            {
                OnTimerAutoExposure();
            }
        }

        double _log = 1.1;
        int _min;
        int _max;

        private void SetExposureBarRange(double min, double max)
        {
            _min = (int)min;
            tkbExposure.Minimum = (int)Math.Log(min, _log);
            _max = (int)max;
            tkbExposure.Maximum = (int)Math.Log(max, _log); ;
        }

        private void tkbExposure_Scroll(object sender, EventArgs e)
        {
            double value = tkbExposure.Value;

            if (tkbExposure.Value == tkbExposure.Minimum) value = _min;
            if (tkbExposure.Value == tkbExposure.Maximum) value = _max;
            value = Math.Pow(_log, value);
            value = Math.Round(value, 3);
            txbExposure.Text = value.ToString();
            _settings.LNExposure = value;
            m_camera.ExposureTime = value;
        }
        private void SetExposureBarValue(double value)
        {
            if (value == 0) return;
            var ival = (int)Math.Log(Math.Max(_min, value), _log);
            tkbExposure.Value = Math.Max(tkbExposure.Minimum, Math.Min(ival, tkbExposure.Maximum));
        }
        /// <summary>
        /// 曝光时间内容输入后校验
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void baoGuangTBox_KeyPress(object sender, KeyPressEventArgs e)
        {

            if (e.KeyChar == (char)Keys.Delete)
            {
                if (txbExposure.Text.Contains("."))
                    e.Handled = true;
            }
            else if (!char.IsDigit(e.KeyChar) && (e.KeyChar != (char)Keys.Enter) && (e.KeyChar != (char)Keys.Back))  // 非数字键, 放弃该输入
            {
                e.Handled = true;
                return;
            }
            if (e.KeyChar == (char)Keys.Enter)
            {
                try
                {
                    double value = Convert.ToDouble(txbExposure.Text);
                    SetExposureBarValue(value);
                    _settings.LNExposure = value;
                    m_camera.ExposureTime = value;
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
        }

    }
}