using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;

namespace Netron.Diagramming.Core
{
    // ----------------------------------------------------------------------
    /// <summary>
    /// Manages the collection of libraries.
    /// </summary>
    // ----------------------------------------------------------------------
    public class LibraryManager
    {
        // ------------------------------------------------------------------
        /// <summary>
        /// The collection of shapes for this library.
        /// </summary>
        // ------------------------------------------------------------------
        private CollectionBase<Library> myLibraries;

        // ------------------------------------------------------------------
        /// <summary>
        /// Gets the collection of all libraries.
        /// </summary>
        // ------------------------------------------------------------------
        public CollectionBase<Library> Libraries
        {
            get
            {
                return myLibraries;
            }
        }

        // ------------------------------------------------------------------
        /// <summary>
        /// Constructor.
        /// </summary>
        // ------------------------------------------------------------------
        public LibraryManager()
        {
            myLibraries = new CollectionBase<Library>();            
        }

        // ------------------------------------------------------------------
        /// <summary>
        /// Creates a new instance of the shape that has the GUID specified.
        /// </summary>
        /// <param name="guid">string</param>
        /// <returns>IShape</returns>
        // ------------------------------------------------------------------
        public IShape CreateNewInstance(string guid)
        {
            foreach (Library lib in myLibraries)
            {
                if (lib.ContainsShape(guid))
                {
                    return lib.CreateNewInstance(guid);
                }
            }
            return null;
        }
    }
}