/* 
 * Copyright (c) 2009 Craig Sutherland
 * 
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

using System.Collections.Generic;
using System.Windows.Forms;
using ThoughtWorks.CruiseControl.Remote.Monitor;

namespace FastForward.WinCore
{
    /// <summary>
    /// A <see cref="TreeNode"/> that automatically displays build queue details.
    /// </summary>
    public class BuildQueueTreeNode
        : TreeNode
    {
        #region Private fields
        private BuildQueue queue;
        private Dictionary<BuildQueueRequest, TreeNode> requests = new Dictionary<BuildQueueRequest, TreeNode>();
        #endregion

        #region Constructors
        /// <summary>
        /// Initialise a new <see cref="BuildQueueTreeNode"/>.
        /// </summary>
        /// <param name="queue"></param>
        public BuildQueueTreeNode(BuildQueue queue)
        {
            this.queue = queue;
            Text = queue.Name;
            ImageKey = BuildQueueUtils.RetrieveImage(queue);
            SelectedImageKey = BuildQueueUtils.RetrieveImage(queue);

            foreach (var request in queue.Requests)
            {
                AddBuildQueueRequest(request);
            }
            queue.BuildQueueRequestAdded += queue_BuildQueueRequestAdded;
            queue.BuildQueueRequestRemoved += queue_BuildQueueRequestRemoved;
        }
        #endregion

        #region Public properties
        #region BuildQueue
        /// <summary>
        /// The underlying <see cref="BuildQueue"/>.
        /// </summary>
        public BuildQueue BuildQueue
        {
            get { return queue; }
        }
        #endregion
        #endregion

        #region Private methods
        #region AddBuildQueueRequest()
        /// <summary>
        /// Add a new build request.
        /// </summary>
        /// <param name="request"></param>
        private void AddBuildQueueRequest(BuildQueueRequest request)
        {
            if (!requests.ContainsKey(request))
            {
                var requestNode = new BuildQueueRequestTreeNode(request);
                requests.Add(request, requestNode);
                Nodes.Add(requestNode);
            }
        }
        #endregion

        #region queue_BuildQueueRequestAdded()
        /// <summary>
        /// Handle a build request being added.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void queue_BuildQueueRequestAdded(object sender, BuildQueueRequestChangedArgs e)
        {
            TreeView.SafeInvoke(() =>
            {
                AddBuildQueueRequest(e.BuildQueueRequest);

                ImageKey = BuildQueueUtils.RetrieveImage(queue);
                SelectedImageKey = BuildQueueUtils.RetrieveImage(queue);
            });
        }
        #endregion

        #region queue_BuildQueueRequestRemoved()
        /// <summary>
        /// Handle a build request being removed.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void queue_BuildQueueRequestRemoved(object sender, BuildQueueRequestChangedArgs e)
        {
            TreeView.SafeInvoke(() =>
            {
                if (requests.ContainsKey(e.BuildQueueRequest))
                {
                    requests[e.BuildQueueRequest].Remove();

                    ImageKey = BuildQueueUtils.RetrieveImage(queue);
                    SelectedImageKey = BuildQueueUtils.RetrieveImage(queue);
                }
            });
        }
        #endregion
        #endregion
    }
}