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;

namespace Tango.MachineStudio.Technician.TechItems
{
    /// <summary>
    /// Represents a dispenser controller item.
    /// </summary>
    /// <seealso cref="Tango.MachineStudio.Technician.TechItems.TechItem" />
    [TechItem(8, true)]
    public class DispenserItem : TechItem
    {
        /// <summary>
        /// Occurs when the user has pressed one of the action controllers.
        /// </summary>
        public event EventHandler<MotorActionType> ActionExecuted;

        private static List<DispenserType> _dispenserTypes;
        /// <summary>
        /// Gets or sets the motor configurations.
        /// </summary>
        public static List<DispenserType> DispenserTypes
        {
            get { return _dispenserTypes; }
            set { _dispenserTypes = value; }
        }

        static DispenserItem()
        {
            DispenserTypes = new List<DispenserType>();

            foreach (var techDispenser in BL.ObservablesStaticCollections.Instance.TechDispensers)
            {
                DispenserTypes.Add(new DispenserType() { Code = int.Parse(techDispenser.Name.Replace("Dispenser", "")) - 1 });
            }
        }

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

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

                if (_techDispenser != null)
                {
                    DispenserType = DispenserTypes.SingleOrDefault(x => x.Code == int.Parse(_techDispenser.Name.Replace("Dispenser", "")) - 1);

                    if (String.IsNullOrEmpty(DisplayName))
                    {
                        DisplayName = _techDispenser.Description;
                    }
                }
            }
        }

        private DispenserType _dispenserType;
        /// <summary>
        /// Gets or sets the type of the dispenser.
        /// </summary>
        [XmlIgnore]
        public DispenserType DispenserType
        {
            get { return _dispenserType; }
            set { _dispenserType = value; RaisePropertyChangedAuto(); }
        }

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

        private String _displayName;
        /// <summary>
        /// Gets or sets the display name.
        /// </summary>
        public String DisplayName
        {
            get { return _displayName; }
            set { _displayName = value; RaisePropertyChangedAuto(); }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="DispenserItem"/> class.
        /// </summary>
        public DispenserItem() : base()
        {
            Name = "Dispenser";
            Description = "Dispenser Controller";
            Speed = 500;
            Image = ResourceHelper.GetImageFromResources("Images/dispenser-big.png");
            Color = Colors.White;
            DispenserType = new DispenserType();
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="DispenserItem"/> class.
        /// </summary>
        /// <param name="techDispenser">The tech dispenser.</param>
        public DispenserItem(TechDispenser techDispenser) : this()
        {
            TechDispenser = techDispenser;
        }

        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns></returns>
        public override TechItem Clone()
        {
            DispenserItem cloned = base.Clone() as DispenserItem;
            cloned.TechDispenser = TechDispenser;
            cloned.DisplayName = DisplayName;
            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);
        }
    }
}