/* 
 * 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.
 */

namespace FastForward.WinCore
{
    using System;
    using System.ComponentModel;
    using System.Linq;
    using System.Windows.Forms;
    using ThoughtWorks.CruiseControl.Remote;
    using ThoughtWorks.CruiseControl.Remote.Monitor;

    /// <summary>
    /// A <see cref="ListViewItem"/> that contains <see cref="Project"/> details.
    /// </summary>
    public class ProjectListViewItem
        : ListViewItem
    {
        #region Private fields
        private Project project;
        #endregion

        #region Constructors
        /// <summary>
        /// Initialise a new <see cref="ProjectListViewItem"/>.
        /// </summary>
        /// <param name="project"></param>
        public ProjectListViewItem(Project project)
            : base(new string[8])
        {
            this.project = project;
            Text = project.Server.Name;
            SubItems[1].Text = project.Name;
            SubItems[2].Text = project.Category;
            SubItems[3].Text = RetrieveActivity();
            SubItems[4].Text = RetrieveMessages();
            SubItems[5].Text = project.LastSuccessfulBuildLabel;
            SubItems[6].Text = project.LastBuildDate.ToString();
            SubItems[7].Text = project.Status.ToString();
            ImageKey = ProjectUtils.RetrieveImage(project);
            project.PropertyChanged += project_PropertyChanged;
        }
        #endregion

        #region Public properties
        #region Project
        /// <summary>
        /// The underlying project.
        /// </summary>
        public Project Project
        {
            get { return project; }
        }
        #endregion

        #region ProgressCompleted
        /// <summary>
        /// Gets or sets the progress completed.
        /// </summary>
        public double ProgressCompleted { get; set; }
        #endregion
        #endregion

        #region Private methods
        #region RetrieveActivity()
        /// <summary>
        /// Retrieve the text for the activity column.
        /// </summary>
        /// <returns></returns>
        private string RetrieveActivity()
        {
            var activity = project.Activity.Type;
            if (project.Status == ProjectIntegratorState.Stopped) activity = "Stopped";
            return activity;
        }
        #endregion

        #region project_PropertyChanged()
        /// <summary>
        /// Handle a change in the underlying project.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void project_PropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            ListView.SafeInvoke(() =>
            {
                switch (e.PropertyName)
                {
                    case "Category":
                        SubItems[2].Text = project.Category;
                        break;
                    case "BuildStatus":
                        ImageKey = ProjectUtils.RetrieveImage(project);
                        break;
                    case "Activity":
                        SubItems[3].Text = RetrieveActivity();
                        SubItems[4].Text = RetrieveMessages();
                        ImageKey = ProjectUtils.RetrieveImage(project);
                        break;
                    case "Status":
                        SubItems[3].Text = RetrieveActivity();
                        SubItems[4].Text = RetrieveMessages();
                        SubItems[7].Text = project.Status.ToString();
                        ImageKey = ProjectUtils.RetrieveImage(project);
                        break;
                    case "Messages":
                    case "NextBuildTime":
                        SubItems[4].Text = RetrieveMessages();
                        break;
                    case "LastSuccessfulBuildLabel":
                        SubItems[5].Text = project.LastSuccessfulBuildLabel;
                        break;
                    case "LastBuildDate":
                        SubItems[6].Text = project.LastBuildDate.ToString();
                        break;
                    case "Exception":
                        ImageKey = ProjectUtils.RetrieveImage(project);
                        SubItems[4].Text = RetrieveMessages();
                        if (project.Exception == null)
                        {
                            SubItems[3].Text = RetrieveActivity();
                            SubItems[7].Text = project.Status.ToString();
                            SubItems[5].Text = project.LastSuccessfulBuildLabel;
                            SubItems[6].Text = project.LastBuildDate.ToString();
                        }
                        else
                        {
                            SubItems[3].Text = string.Empty;
                            SubItems[7].Text = string.Empty;
                            SubItems[5].Text = string.Empty;
                            SubItems[6].Text = string.Empty;
                        }
                        break;
                }
            });
        }
        #endregion

        #region RetrieveMessages()
        /// <summary>
        /// Retrieve the text for the messages column.
        /// </summary>
        /// <returns></returns>
        private string RetrieveMessages()
        {
            if (project.Exception == null)
            {
                var details = string.Join(",",
                    (from message in project.Messages
                     select message.Text).ToArray());

                if (project.Activity.IsBuilding())
                {
                    details = "Unknown progress";
                    try
                    {
                        var status = project.RetrieveCurrentStatus();
                        if (status.ChildItems.Count > 0)
                        {
                            var completed = (from item in status.ChildItems
                                             where (item.Status != ItemBuildStatus.Pending) && (item.Status != ItemBuildStatus.Running)
                                             select item).Count();
                            ProgressCompleted = completed * 100 / (double)status.ChildItems.Count;
                            details = string.Format("{0}% completed", ProgressCompleted);
                        }
                    }
                    catch
                    {
                        // The server does not allow this functionality
                    }
                }
                else if (project.Activity.IsSleeping() && (project.Status != ProjectIntegratorState.Stopped) && (project.NextBuildTime != DateTime.MaxValue))
                {
                    details = string.Format("Next build check: {0}{1}",
                        project.NextBuildTime,
                        details.Length > 0 ? " - " + details : string.Empty);
                }
                return details;
            }
            else
            {
                return string.Format("Unable to connect: {0}", project.Exception.Message);
            }
        }
        #endregion
        #endregion
    }
}