using System;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Administration;
using Microsoft.SharePoint.Utilities;
using Taloyhtio.CondoUpdate.Common;

namespace CondoUpdate.AddSiteCollectionAdmin
{
    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)
        {
            using (var site = new SPSite(url))
            {
                var web = site.RootWeb;
                var permissionLevel = web.RoleDefinitions.Cast<SPRoleDefinition>().FirstOrDefault(rd => rd.Name == "Hallitus");
                if (permissionLevel == null)
                {
                    this.error("Hallitus permission level not found");
                    return;
                }
                permissionLevel.BasePermissions = 
                    SPBasePermissions.AddListItems |
                    SPBasePermissions.EditListItems |
                    SPBasePermissions.DeleteListItems |
                    SPBasePermissions.ViewListItems |
                    SPBasePermissions.ApproveItems |
                    SPBasePermissions.OpenItems |
                    SPBasePermissions.ViewVersions |
                    SPBasePermissions.DeleteVersions |
                    SPBasePermissions.ViewFormPages |
                    SPBasePermissions.AddAndCustomizePages |
                    SPBasePermissions.BrowseDirectories |
                    SPBasePermissions.ViewPages |
                    SPBasePermissions.BrowseUserInfo |
                    SPBasePermissions.UseRemoteAPIs |
                    SPBasePermissions.Open;
                permissionLevel.Update();
            }
        }

        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 });
            }
        }
    }
}