using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Xml.Serialization;
using Tango.Core.Commands;
using Tango.BL.Entities;
using Tango.SharedUI.Helpers;
using System.Collections.ObjectModel;

namespace Tango.MachineStudio.Technician.TechItems
{
    /// <summary>
    /// Represents a motor controller item.
    /// </summary>
    /// <seealso cref="Tango.MachineStudio.Technician.TechItems.TechItem" />
    [TechItem(6, true)]
    public class MotorItem : TechItem
    {
        /// <summary>
        /// Occurs when the user has pressed/released on of the item actions.
        /// </summary>
        public event EventHandler<MotorActionType> ActionExecuted;

        private static List<HardwareMotor> _motorConfigurations;
        /// <summary>
        /// Gets or sets the motor configurations.
        /// </summary>
        public static List<HardwareMotor> MotorConfigurations
        {
            get { return _motorConfigurations; }
            set { _motorConfigurations = value; }
        }

        static MotorItem()
        {
            MotorConfigurations = new List<HardwareMotor>();

            foreach (var motorType in BL.ObservablesStaticCollections.Instance.HardwareMotorTypes)
            {
                MotorConfigurations.Add(new HardwareMotor() { HardwareMotorType = motorType });
            }
        }

        /// <summary>
        /// Occurs when motor homing has completed.
        /// </summary>
        public event EventHandler HomingCompleted;

        private HardwareMotorType _hardwareMotorType;
        /// <summary>
        /// Gets or sets the db tech motor.
        /// </summary>
        [XmlIgnore]
        public HardwareMotorType HardwareMotorType
        {
            get { return _hardwareMotorType; }
            set
            {
                _hardwareMotorType = value; RaisePropertyChangedAuto(); TechName = _hardwareMotorType != null ? _hardwareMotorType.Description : null; ItemGuid = value != null ? value.Guid : null;

                if (_hardwareMotorType != null)
                {
                    HardwareMotor = MotorConfigurations.SingleOrDefault(x => x.HardwareMotorType == _hardwareMotorType);
                }
            }
        }

        private HardwareMotor _hardwareMotor;
        /// <summary>
        /// Gets or sets the hardware motor.
        /// </summary>
        [XmlIgnore]
        public HardwareMotor HardwareMotor
        {
            get { return _hardwareMotor; }
            set { _hardwareMotor = value; RaisePropertyChangedAuto(); }
        }


        private bool _isHoming;
        /// <summary>
        /// Gets or sets a value indicating whether the motor is currently homing.
        /// </summary>
        [XmlIgnore]
        public bool IsHoming
        {
            get { return _isHoming; }
            set
            {
                _isHoming = value;
                RaisePropertyChangedAuto();
            }
        }

        private bool _isHomingCompleted;
        /// <summary>
        /// Gets or sets a value indicating whether the motor homing has completed.
        /// </summary>
        [XmlIgnore]
        public bool IsHomingCompleted
        {
            get { return _isHomingCompleted; }
            set
            {
                _isHomingCompleted = value;
                RaisePropertyChangedAuto();

                if (value)
                {
                    HomingCompleted?.Invoke(this, new EventArgs());
                }
            }
        }

        private double _homingProgress;
        /// <summary>
        /// Gets or sets the current homing progress.
        /// </summary>
        [XmlIgnore]
        public double HomingProgress
        {
            get { return _homingProgress; }
            set
            {
                _homingProgress = value;
                RaisePropertyChangedAuto();
            }
        }

        private double _homingMaximumProgress;
        /// <summary>
        /// Gets or sets the homing maximum progress.
        /// </summary>
        [XmlIgnore]
        public double HomingMaximumProgress
        {
            get { return _homingMaximumProgress; }
            set { _homingMaximumProgress = value; RaisePropertyChangedAuto(); }
        }

        private double _speed;
        /// <summary>
        /// Gets or sets the motor speed.
        /// </summary>
        public double Speed
        {
            get { return _speed; }
            set { _speed = value; RaisePropertyChangedAuto(); }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="MotorItem"/> class.
        /// </summary>
        public MotorItem() : base()
        {
            Name = "Motor";
            Description = "Motor Controller";
            Speed = 500;
            Image = ResourceHelper.GetImageFromResources("Images/engine.png");
            Color = Colors.White;
            HardwareMotor = new HardwareMotor();
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="MotorItem"/> class.
        /// </summary>
        /// <param name="techMotor">The tech motor.</param>
        public MotorItem(HardwareMotorType techMotor) : this()
        {
            HardwareMotorType = techMotor;
        }

        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns></returns>
        public override TechItem Clone()
        {
            MotorItem cloned = base.Clone() as MotorItem;
            cloned.HardwareMotorType = HardwareMotorType;
            cloned.Speed = Speed;
            return cloned;
        }

        /// <summary>
        /// Raises the <see cref="ActionExecuted"/> event with the specified action.
        /// </summary>
        /// <param name="action">The action.</param>
        public void RaiseAction(MotorActionType action)
        {
            ActionExecuted?.Invoke(this, action);
        }
    }
}