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

namespace CondoUpdate.ResponsiveLayout.ChangeGlobalNavLinksOrderAc
{
    public class UpdaterImpl : ICondoUpdater
    {
        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 etusivuNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => string.Compare(n.Title, "Etusivu", true) == 0);
                if (etusivuNode != null)
                {
                    etusivuNode.MoveToFirst(globalNavigation);
                }
                var sisaisetNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => string.Compare(n.Title, "Sisäiset asiat", true) == 0);
                if (sisaisetNode != null)
                {
                    if (etusivuNode != null)
                    {
                        sisaisetNode.Move(globalNavigation, etusivuNode);
                    }
                    else
                    {
                        sisaisetNode.MoveToFirst(globalNavigation);
                    }
                }
                var asiakatNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => string.Compare(n.Title, "Asiakkaat", true) == 0);
                if (asiakatNode != null)
                {
                    if (sisaisetNode != null)
                    {
                        asiakatNode.Move(globalNavigation, sisaisetNode);
                    }
                    else
                    {
                        asiakatNode.MoveToFirst(globalNavigation);
                    }
                }
                var tyokalutNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => string.Compare(n.Title, "Työkalut", true) == 0);
                if (tyokalutNode != null)
                {
                    if (asiakatNode != null)
                    {
                        tyokalutNode.Move(globalNavigation, asiakatNode);
                    }
                    else
                    {
                        tyokalutNode.MoveToFirst(globalNavigation);
                    }
                }
                var tallierInfoNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => string.Compare(n.Title, "Tallier.Info", true) == 0);
                if (tallierInfoNode != null)
                {
                    if (tyokalutNode != null)
                    {
                        tallierInfoNode.Move(globalNavigation, tyokalutNode);
                    }
                    else
                    {
                        tallierInfoNode.MoveToFirst(globalNavigation);
                    }
                }
                var tilaIlmoitaNode = globalNavigation.Cast<SPNavigationNode>().FirstOrDefault(n => string.Compare(n.Title, "Tilaa & ilmoita", true) == 0);
                if (tilaIlmoitaNode != null)
                {
                    if (tallierInfoNode != null)
                    {
                        tilaIlmoitaNode.Move(globalNavigation, tallierInfoNode);
                    }
                    else
                    {
                        tilaIlmoitaNode.MoveToLast(globalNavigation);
                    }
                }
                var lomakkeetWeb = pmcWeb.Webs.FirstOrDefault(w => string.Compare(w.Title, "Tilitoimiston palsta", true) == 0);
                if (lomakkeetWeb != null)
                {
                    var plomakkeetWeb = PublishingWeb.GetPublishingWeb(lomakkeetWeb);
                    plomakkeetWeb.IncludeInGlobalNavigation = false;
                    plomakkeetWeb.Update();
                }
            }
            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
    }
}