using MuchInfo.Chart.WPF.Primitives.Interfaces;
using System.Collections.Generic;
using System.Linq;

namespace MuchInfo.Chart.WPF.Primitives.Drawing
{
    public class DrawingToolContainer
    {
        #region Fields

        private List<DrawingToolSpec> _list;
        private ScaleLayer _scaleLayer;

        #endregion Fields

        #region Constructors

        public DrawingToolContainer(ScaleLayer owner)
        {
            this._list = new List<DrawingToolSpec>();
            this._scaleLayer = owner;
        }

        #endregion Constructors

        #region Delegates

        public delegate void ReloadDrawingsEventHandler();

        #endregion Delegates
        
        #region Methods

        #region Public Methods

        public DrawingToolSpec AddDrawing(string symbol, IDrawingTool aDrawing)
        {
            var drawingToolSpec = new DrawingToolSpec(symbol, aDrawing) { DrawingToolContainer = this };
            this._list.Add(drawingToolSpec);
            return drawingToolSpec;
        }

        public void AddDrawing(DrawingToolSpec aSpec)
        {
            aSpec.DrawingToolContainer = this;
            this._list.Add(aSpec);
        }

        public List<DrawingToolSpec> AllDrawings()
        {
            return this._list;
        }

        public void Clear()
        {
            this._list.Clear();
        }

        public List<IDrawingTool> DrawingForSymbol(string symbol)
        {
            var list = new List<IDrawingTool>();
            if (string.IsNullOrWhiteSpace(symbol) || this._list == null) return list;
            list.AddRange(from current in _list
                          let flag = current.AppliesToSymbol(symbol)
                          where flag
                          select current.GetTool());

            return list;
        }

        public ScaleLayer ScaleLayer()
        {
            return this._scaleLayer;
        }

        #endregion Public Methods

        #region Internal Methods

        internal void DrawingToolContainer_3724(DrawingToolSpec aSpec)
        {
            this._list.Remove(aSpec);
            bool flag = this._scaleLayer != null;
            if (flag)
            {
                this._scaleLayer.RefreshChart(true);
            }
        }

        #endregion Internal Methods

        #endregion Methods
    }
}