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.BL.Entities;
using Tango.Core.Commands;
using Tango.PMR.Diagnostics;
using Tango.SharedUI.Helpers;

namespace Tango.MachineStudio.Technician.TechItems
{
    [TechItem(10, false)]
    public class ValveItem : TechItem
    {
        /// <summary>
        /// Occurs when the user has changed the current value.
        /// </summary>
        public event EventHandler<ValveStateCode> StateChanged;

        /// <summary>
        /// Gets or sets the set command.
        /// </summary>
        [XmlIgnore]
        public RelayCommand<String> SetCommand { get; set; }

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

                if (_techValve != null)
                {
                    State = (ValveStateCode)Enum.Parse(typeof(ValveStateCode), _techValve.State1.Replace(" ", ""), true);
                }
            }
        }

        private ValveStateCode _state;
        /// <summary>
        /// Gets or sets a value indicating whether this <see cref="ValveItem"/> is on.
        /// </summary>
        [XmlIgnore]
        public ValveStateCode State
        {
            get { return _state; }
            set { _state = value; RaisePropertyChangedAuto(); }
        }

        private ValveStateCode _effectiveState;
        /// <summary>
        /// Gets or sets the effective value received from the embedded device.
        /// </summary>
        [XmlIgnore]
        public ValveStateCode EffectiveState
        {
            get { return _effectiveState; }
            set
            {
                if (_effectiveState != value)
                {
                    _effectiveState = value;
                    RaisePropertyChangedAuto();
                    _state = value;
                    RaisePropertyChanged(nameof(State));
                }
            }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="ValveItem"/> class.
        /// </summary>
        public ValveItem() : base()
        {
            Name = "Valve Controller";
            Description = "Valve Controller";
            Image = ResourceHelper.GetImageFromResources("Images/valve.png");
            Color = Colors.White;

            SetCommand = new RelayCommand<string>((x) =>
            {
                State = (ValveStateCode)Enum.Parse(typeof(ValveStateCode), x.Replace(" ", ""), true);
                StateChanged?.Invoke(this, State);
            });
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="ValveItem"/> class.
        /// </summary>
        /// <param name="techValve">The db tech item.</param>
        public ValveItem(TechValve techValve) : this()
        {
            TechValve = techValve;
        }

        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns></returns>
        public override TechItem Clone()
        {
            ValveItem cloned = base.Clone() as ValveItem;
            cloned.TechValve = TechValve;
            cloned.State = State;
            return cloned;
        }
    }
}