using System;
using JD.Collections.Interfaces;
using JD.Kernel.StaticHelpers;

namespace JD.TeaBoxAddinSystem.Addins.Description
{
    /// <summary>
    /// Collection of <see cref="ExtensionNodeDescription"/>s
    /// </summary>
    internal class ExtensionNodeDescriptionCollection : AddinObjectCollection<ExtensionNodeDescription>, IKeyedList<string, ExtensionNodeDescription>
    {
        #region Properties

        /// <summary>
        /// Gets an <see cref="ExtensionNodeDescription"/> by its id.
        /// </summary>
        /// <remarks>
        /// Not all <see cref="ExtensionNodeDescription"/>s have an id, and ids are not guaranteed to be unique. 
        /// This method will return the first <see cref="ExtensionNodeDescription"/> it finds with the given <paramref name="id"/>. 
        /// This method is O(N).</remarks>
        /// <param name="id"></param>
        /// <returns></returns>
        public ExtensionNodeDescription this[string id]
        {
            get
            {
                Throw.IfEmpty(id, "id");

                foreach (ExtensionNodeDescription description in this)
                {
                    if (string.Equals(description.Id, id))
                    {
                        return description;
                    }
                }

                return null;
            }
        }

        #endregion

        #region Methods

        /// <summary>
        /// Returns if an <see cref="ExtensionNodeDescription"/> with the given <paramref name="id"/> is contained in this collection.
        /// </summary>
        /// <remarks>
        /// Not all <see cref="ExtensionNodeDescription"/>s have an id, and ids are not guaranteed to be unique. 
        /// This method will return true as soon as it finds an <see cref="ExtensionNodeDescription"/> with the given <paramref name="id"/>. 
        /// This method is O(N).</remarks>
        /// <param name="id"></param>
        /// <returns></returns>
        public bool ContainsKey(string id)
        {
            return (this[id] != null);
        }

        /// <summary>
        /// Not supported.
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public bool Remove(string id)
        {
            throw new NotSupportedException();
        }

        public bool TryGetValue(string key, out ExtensionNodeDescription value)
        {
            value = this[key];
            return value != null;
        }

        #endregion
    }
}