Send scheduled Reminder/Alerts by email in SharePoint

using System;
using System.Collections.Generic;
using System.Text;
using Mullivan.SharePoint;
using System.IO;
using System.Web;

namespace Mullivan.SharePoint.Remote
{
    public class SPItem
    {
        private SPContentType _contentType;

        internal SPItem(SPContentType contentType, bool isNew)
        {
            _contentType = contentType;
            this.Properties = new Dictionary<string, string>();
            this.IsNew = isNew;
        }

        internal bool IsNew
        {
            get;
            set;
        }

        public SPContentType ContentType
        {
            get { return _contentType; }
        }

        public Dictionary<string, string> Properties
        {
            get;
            set;
        }

        public byte[] Binary
        {
            get;
            set;
        }

        public int Id
        {
            get;
            set;
        }

        public string Name
        {
            get;
            set;
        }

        public string Extension
        {
            get;
            set;
        }

        public string Folder
        {
            get;
            set;
        }

        public string Version
        {
            get;
            set;
        }

        public bool CheckedOut
        {
            get;
            set;
        }

        public string CheckedoutUser
        {
            get;
            set;
        }

        public string[] AttachmentUrls
        {
            get;
            set;
        }

        public string GetUrl()
        {
            string docUrl = string.Empty;

            docUrl = this.ContentType.List.FullUri.TrimEnd('/');
            docUrl += "/";

            if (!string.IsNullOrEmpty(this.Folder))
                docUrl += this.Folder.Trim('/');

            if (this.ContentType.List.BaseType == SPListBaseType.DocumentLibrary)
            {
                if (string.IsNullOrEmpty(this.Name))
                    this.Name = Guid.NewGuid().ToString().Trim('{', '}');
                    
                docUrl += this.Name;
                docUrl += ".";

                if (string.IsNullOrEmpty(this.Extension))
                    throw new Exception("Error generating the item's Url. The Extension property must be set when the item belongs to a Document Library.");

                docUrl += this.Extension;
            }
            else
            {
                if (this.Id < 1)
                    throw new Exception("Error generating the item's Url. The ID property must be set when the item belongs to a List.");

                docUrl += this.Id.ToString() + "_.000";
                
            }

            return HttpUtility.UrlPathEncode(docUrl);
        }
    }
}