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

namespace Tango.MachineStudio.Technician.TechItems
{
    /// <summary>
    /// Represents a motors group item.
    /// </summary>
    /// <seealso cref="Tango.MachineStudio.Technician.TechItems.TechItem" />
    [TechItem(7, true)]
    public class MotorGroupItem : TechItem
    {
        /// <summary>
        /// Occurs when the user has pressed/released on of the item actions.
        /// </summary>
        public event EventHandler<MotorActionType> ActionExecuted;

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

        private SelectedObjectCollection<HardwareMotorType> _selectedMotors;
        /// <summary>
        /// Gets or sets the selected db tech motors.
        /// </summary>
        [XmlIgnore]
        public SelectedObjectCollection<HardwareMotorType> SelectedMotors
        {
            get { return _selectedMotors; }
            set { _selectedMotors = value; RaisePropertyChangedAuto(); }
        }

        private ObservableCollection<HardwareMotorType> _techMotors;
        /// <summary>
        /// Gets or sets the available db tech motors.
        /// </summary>
        [XmlIgnore]
        public ObservableCollection<HardwareMotorType> TechMotors
        {
            get { return _techMotors; }
            set { _techMotors = value; RaisePropertyChangedAuto(); SetSelectedMotors(); }
        }

        /// <summary>
        /// Sets the selected motors.
        /// </summary>
        private void SetSelectedMotors()
        {
            if (TechMotors != null)
            {
                SelectedMotors = new SelectedObjectCollection<HardwareMotorType>(ObservablesStaticCollections.Instance.HardwareMotorTypes.ToObservableCollection(), TechMotors);
            }
        }

        /// <summary>
        /// Gets or sets the selected tech items motors guids.
        /// </summary>
        public List<String> ItemsGuids { get; set; }

        private String _groupName;
        /// <summary>
        /// Gets or sets the name of the group.
        /// </summary>
        public String GroupName
        {
            get { return _groupName; }
            set { _groupName = value; RaisePropertyChangedAuto(); TechName = value; }
        }

        private bool _isHoming;
        /// <summary>
        /// Gets or sets a value indicating whether this motor group 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 this group 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 motors speed.
        /// </summary>
        public double Speed
        {
            get { return _speed; }
            set { _speed = value; RaisePropertyChangedAuto(); }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="MotorGroupItem"/> class.
        /// </summary>
        public MotorGroupItem() : base()
        {
            ItemsGuids = new List<string>();
            TechMotors = new ObservableCollection<HardwareMotorType>();
            Name = "Motor Group";
            Description = "Motor Group Controller";
            Image = ResourceHelper.GetImageFromResources("Images/motor-group.png");
            Color = Colors.White;
            GroupName = "Motor Group";
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="MotorGroupItem"/> class.
        /// </summary>
        /// <param name="dummyConstructor">does not matter.</param>
        public MotorGroupItem(object dummyConstructor) : this()
        {

        }

        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns></returns>
        public override TechItem Clone()
        {
            MotorGroupItem cloned = base.Clone() as MotorGroupItem;
            cloned.TechMotors = new ObservableCollection<HardwareMotorType>(TechMotors);
            cloned.Speed = Speed;
            cloned.ItemsGuids = ItemsGuids;
            cloned.TechMotors = cloned.TechMotors.ToObservableCollection();
            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);
        }
    }
}