using Microsoft.SharePoint;
using Microsoft.SharePoint.Publishing;
using System;
using System.Globalization;
using System.Linq;
using System.Threading;
using Taloyhtio.CondoUpdate.Common;

namespace CondoUpdate.ResponsiveLayout.AddSisaisetAsiatGlobalMenuItemTallier
{
    public class UpdaterImpl : ICondoUpdater
    {
        private const string TargetPageUrl = "sisäisetasiat.aspx";
        private const string TargetTitle = "Sisäiset asiat";
        public event EventHandler<LogEventArgs> OnNotify;
        public void Update(object args)
        {
            string url = args as string;
            if (string.IsNullOrEmpty(url))
            {
                this.warn("Url is empty");
                return;
            }

            try
            {
                this.updateImpl(url);
            }
            catch (Exception x)
            {
                this.error("Error occured during updating of Condo '{0}':\n{1}\n{2}", url, x.Message, x.StackTrace);
            }
        }

        private void updateImpl(string url)
        {
            try
            {
                using (var site = new SPSite(url))
                {
                    using (var acWeb = site.RootWeb)
                    {
                        if (!acWeb.Exists)
                        {
                            return;
                        }

                        if (!PublishingWeb.IsPublishingWeb(acWeb))
                        {
                            return;
                        }
                        var pweb = PublishingWeb.GetPublishingWeb(acWeb);
                        Thread.CurrentThread.CurrentUICulture = new CultureInfo((int)acWeb.Language);
                        addGlobalNavNode(pweb, acWeb);
                    }
                }
            }
            catch (Exception ex)
            {
                this.error("Error occured when update '{0}' site:\n{1}\n{2}", url, ex.Message,
                    ex.StackTrace);
            }
        }

        private void addGlobalNavNode(PublishingWeb pweb, SPWeb pmcWeb)
        {
            try
            {
                //                var globalNavigation = pweb.Navigation.GlobalNavigationNodes;
                //                var existingNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(spnode => spnode.Title.Equals(TargetTitle));
                //                if (existingNode != null)
                //                {
                //                    this.warn(string.Format("{0} menu item already exists. Site won't be updated", TargetTitle));
                //                    return;
                //                }
                //                var pageExists = pmcWeb.GetFolder((int)pmcWeb.Language == 1035 ? "Sivut" : "Pages").Files.Cast<SPFile>().Any(f => f.Name.ToLower() == "sisäisetasiat.aspx");
                //                if (!pageExists)
                //                {
                //                    this.error("Unable to find guide pages. Site won't be updated");
                //                    return;
                //                }
                //                var file =
                //                pmcWeb.GetFolder((int)pmcWeb.Language == 1035 ? "Sivut" : "Pages")
                //                    .Files.Cast<SPFile>()
                //                    .First(f => f.Name.ToLower() == TargetPageUrl);
                //
                //                var node = SPNavigationSiteMapNode.CreateSPNavigationNode(TargetTitle,
                //                    file == null ? pmcWeb.ServerRelativeUrl : file.Url,
                //                    NodeTypes.AuthoredLinkPlain, globalNavigation);
                //
                //                var dt = DateTime.Now;
                //                node.Properties["CreatedDate"] = dt;
                //                node.Properties["LastModifiedDate"] = dt;
                //                node.Properties["Description"] = "";
                //                node.Update();
                //                node.MoveToLast(globalNavigation);
                //                var file = pmcWeb.GetFolder((int)pmcWeb.Language == 1035 ? "Sivut" : "Pages").Files.Cast<SPFile>().FirstOrDefault(f => f.Name.ToLower() == "sisäisetasiat.aspx");
                //                if (file == null)
                //                {
                //                    this.error("Unable to find guide pages. Site won't be updated");
                //                    return;
                //                }
                var page = pweb.GetPublishingPages().FirstOrDefault(p => string.Compare(p.Name, "sisäisetasiat.aspx", true) == 0);
                if (page == null)
                {
                    this.error("Unable to find guide pages. Site won't be updated");
                    return;
                }

                var file = pweb.PagesList.RootFolder.Files.Cast<SPFile>().FirstOrDefault(f => string.Compare(f.Name, page.Name, true) == 0);
                if (file == null)
                {
                    this.error("cannot access file '{0}', global navigation will not be updated", page.Name);
                    return;
                }

                if (file.CheckOutType == SPFile.SPCheckOutType.None)
                {
                    file.CheckOut();
                }
                else
                {
                    file.UndoCheckOut();
                    file.CheckOut();
                }

                page.IncludeInGlobalNavigation = true;
                page.Update();

                file.Update();
                file.CheckIn("included in global navigation");
                if (file.Item.ParentList.EnableMinorVersions)
                {
                    file.Publish("included in global navigation");
                }
                if (file.Item.ParentList.EnableModeration)
                {
                    file.Approve("included in global navigation");
                }

            }
            catch (Exception ex)
            {
                this.error("Error occured when add global menu item to the '{0}' site:\n{1}\n{2}", pweb.Web.Url, ex.Message, ex.StackTrace);
            }
        }

        #region notify
        private void info(string msg, params object[] args)
        {
            this.notify(LogLevel.Info, msg, args);
        }

        private void warn(string msg, params object[] args)
        {
            this.notify(LogLevel.Warn, msg, args);
        }

        private void error(string msg, params object[] args)
        {
            this.notify(LogLevel.Error, msg, args);
        }

        private void notify(LogLevel level, string msg, params object[] args)
        {
            this.notify(level, string.Format(msg, args));
        }

        private void notify(LogLevel level, string msg)
        {
            if (this.OnNotify != null)
            {
                this.OnNotify(this, new LogEventArgs { LogLevel = level, Message = msg });
            }
        }
        #endregion
    }
}