using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using XP.Common.Controls;
using XP.Hardware.MotionControl.ViewModels;

namespace XP.Hardware.MotionControl.Views
{
    /// <summary>
    /// 轴控制面板视图 | Axis Control Panel View
    /// 集成摇杆、轴位置输入框、安全参数和使能控制的 UserControl
    /// UserControl integrating joysticks, axis position inputs, safety parameters and enable control
    /// </summary>
    public partial class AxisControlView : UserControl
    {
        public AxisControlView()
        {
            InitializeComponent();

            // 监听摇杆只读依赖属性变化，推送到 ViewModel | Listen to joystick read-only DP changes and push to ViewModel
            var dualOutputXDesc = DependencyPropertyDescriptor.FromProperty(VirtualJoystick.OutputXProperty, typeof(VirtualJoystick));
            var dualOutputYDesc = DependencyPropertyDescriptor.FromProperty(VirtualJoystick.OutputYProperty, typeof(VirtualJoystick));
            var dualButtonDesc = DependencyPropertyDescriptor.FromProperty(VirtualJoystick.ActiveMouseButtonProperty, typeof(VirtualJoystick));
            var singleOutputYDesc = DependencyPropertyDescriptor.FromProperty(VirtualJoystick.OutputYProperty, typeof(VirtualJoystick));
            var singleButtonDesc = DependencyPropertyDescriptor.FromProperty(VirtualJoystick.ActiveMouseButtonProperty, typeof(VirtualJoystick));

            dualOutputXDesc?.AddValueChanged(DualJoystick, (s, e) =>
            {
                if (ViewModel != null) ViewModel.DualJoystickOutputX = DualJoystick.OutputX;
            });
            dualOutputYDesc?.AddValueChanged(DualJoystick, (s, e) =>
            {
                if (ViewModel != null) ViewModel.DualJoystickOutputY = DualJoystick.OutputY;
            });
            dualButtonDesc?.AddValueChanged(DualJoystick, (s, e) =>
            {
                if (ViewModel != null) ViewModel.DualJoystickActiveButton = DualJoystick.ActiveMouseButton;
            });
            singleOutputYDesc?.AddValueChanged(SingleJoystick, (s, e) =>
            {
                if (ViewModel != null) ViewModel.SingleJoystickOutputY = SingleJoystick.OutputY;
            });
            singleButtonDesc?.AddValueChanged(SingleJoystick, (s, e) =>
            {
                if (ViewModel != null) ViewModel.SingleJoystickActiveButton = SingleJoystick.ActiveMouseButton;
            });
        }

        /// <summary>
        /// 获取当前 ViewModel 实例 | Get current ViewModel instance
        /// </summary>
        private AxisControlViewModel ViewModel => DataContext as AxisControlViewModel;

        #region Stage X 事件处理 | Stage X Event Handlers

        private void NumStageX_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.StageXPosition), true);
        }

        private void NumStageX_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.StageXPosition));
        }

        private void NumStageX_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.StageXPosition), e);
        }

        #endregion

        #region Stage Y 事件处理 | Stage Y Event Handlers

        private void NumStageY_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.StageYPosition), true);
        }

        private void NumStageY_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.StageYPosition));
        }

        private void NumStageY_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.StageYPosition), e);
        }

        #endregion

        #region Source Z 事件处理 | Source Z Event Handlers

        private void NumSourceZ_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.SourceZPosition), true);
        }

        private void NumSourceZ_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.SourceZPosition));
        }

        private void NumSourceZ_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.SourceZPosition), e);
        }

        #endregion

        #region Detector Z 事件处理 | Detector Z Event Handlers

        private void NumDetectorZ_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.DetectorZPosition), true);
        }

        private void NumDetectorZ_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.DetectorZPosition));
        }

        private void NumDetectorZ_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.DetectorZPosition), e);
        }

        #endregion

        #region Detector Swing 事件处理 | Detector Swing Event Handlers

        private void NumDetSwing_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.DetectorSwingAngle), true);
        }

        private void NumDetSwing_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.DetectorSwingAngle));
        }

        private void NumDetSwing_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.DetectorSwingAngle), e);
        }

        #endregion

        #region Stage Rotation 事件处理 | Stage Rotation Event Handlers

        private void NumStageRot_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.StageRotationAngle), true);
        }

        private void NumStageRot_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.StageRotationAngle));
        }

        private void NumStageRot_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.StageRotationAngle), e);
        }

        #endregion

        #region Fixture Rotation 事件处理 | Fixture Rotation Event Handlers

        private void NumFixtureRot_GotFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.SetEditing(nameof(AxisControlViewModel.FixtureRotationAngle), true);
        }

        private void NumFixtureRot_LostFocus(object sender, RoutedEventArgs e)
        {
            ViewModel?.CancelEditing(nameof(AxisControlViewModel.FixtureRotationAngle));
        }

        private void NumFixtureRot_KeyDown(object sender, KeyEventArgs e)
        {
            HandleAxisKeyDown(nameof(AxisControlViewModel.FixtureRotationAngle), e);
        }

        #endregion

        #region 安全参数键盘事件 | Safety Parameter Key Events

        private void NumSafetyHeight_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                ViewModel?.ConfirmSafetyHeight();
                e.Handled = true;
            }
        }

        private void NumCalibration_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                ViewModel?.ConfirmCalibrationValue();
                e.Handled = true;
            }
        }

        #endregion

        #region 通用键盘处理 | Common Key Handler

        /// <summary>
        /// 轴输入框通用键盘处理：Enter 确认，Escape 取消 | Common axis input key handler: Enter to confirm, Escape to cancel
        /// </summary>
        private void HandleAxisKeyDown(string propertyName, KeyEventArgs e)
        {
            if (ViewModel == null) return;

            switch (e.Key)
            {
                case Key.Enter:
                    ViewModel.ConfirmPosition(propertyName);
                    e.Handled = true;
                    break;
                case Key.Escape:
                    ViewModel.CancelEditing(propertyName);
                    e.Handled = true;
                    break;
            }
        }

        #endregion
    }
}