using Aitex.Core.Util;
using Aitex.Sorter.Common;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml.Linq;

namespace Aitex.Sorter.UI.Config
{
    public class SignalTowerManager : Singleton<SignalTowerManager>
    {
        public IEnumerable<SignalTowerEventItem> Load(string fileName)
        {
            if (File.Exists(fileName))
            {
                var doc = XDocument.Load(fileName);
                var result = doc.Root.Elements("Event").Select(x => new SignalTowerEventItem()
                {
                    Name = x.Attribute("Name").Value,
                    RedAction = (SignalTowerAction)Enum.Parse(typeof(SignalTowerAction), x.Attribute("Red").Value),
                    BlueAction = (SignalTowerAction)Enum.Parse(typeof(SignalTowerAction), x.Attribute("Blue").Value),
                    GreenAction = (SignalTowerAction)Enum.Parse(typeof(SignalTowerAction), x.Attribute("Green").Value),
                    BuzzerAction = (SignalTowerAction)Enum.Parse(typeof(SignalTowerAction), x.Attribute("Red").Value),
                });
                return result;
            }
            return null;
        }

        public void Save(IEnumerable<SignalTowerEventItem> events, string fileName)
        {
            var result = events.Select(x =>
                               new XElement("Event",
                               new XAttribute("Name", x.Name),
                               new XAttribute("Red", x.RedAction),
                               new XAttribute("Blue", x.BlueAction),
                               new XAttribute("Green", x.GreenAction),
                               new XAttribute("Buzzer", x.BuzzerAction)
           ));
            var doc = new XDocument(new XElement("Events", result));
            doc.Save(fileName);
        }
    }

    public class SignalTowerEventItem : NotifyPropertyChangedBase
    {
        private string name;
        public string Name
        {
            get
            {
                return name;
            }
            set
            {
                name = value;
                OnPropertyChanged("Name");
            }
        }

        private SignalTowerAction redAction;
        public SignalTowerAction RedAction
        {
            get
            {
                return redAction;
            }
            set
            {
                redAction = value;
                OnPropertyChanged("RedAction");
            }
        }

        private SignalTowerAction blueAction;
        public SignalTowerAction BlueAction
        {
            get
            {
                return blueAction;
            }
            set
            {
                blueAction = value;
                OnPropertyChanged("BlueAction");
            }
        }

        private SignalTowerAction greenAction;
        public SignalTowerAction GreenAction
        {
            get
            {
                return greenAction;
            }
            set
            {
                greenAction = value;
                OnPropertyChanged("GreenAction");
            }
        }

        private SignalTowerAction buzzerAction;
        public SignalTowerAction BuzzerAction
        {
            get
            {
                return buzzerAction;
            }
            set
            {
                buzzerAction = value;
                OnPropertyChanged("BuzzerAction");
            }
        }
    }

    public enum SignalTowerAction
    {
        Off,
        On,
        Blink,
    }
}