using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SharePoint;
using Taloyhtio.SSOExtension.CodeFiles;

namespace EncryptPasswords
{
    class Program
    {
        static void Main(string[] args)
        {
            if (args.Length != 1)
            {
                Console.WriteLine("Usage: .exe <web_app_url>");
                return;
            }

            using (var site = new SPSite(args[0]))
            {
                var web = site.WebApplication.Sites[0].RootWeb;
                var list = web.Lists.Cast<SPList>().FirstOrDefault(l => l.Title == Constants.CACHED_CREDENTIALS_LIST);
                if (list == null)
                {
                    log("Cached credentials list not found");
                    return;
                }

                foreach (SPListItem item in list.Items)
                {
                    if ((string) item["FSObjType"] == "0")
                    {
                        //log("User: '{0}'; pwd: '{1}'", item[Constants.FIELD_USER_NAME], item[Constants.FIELD_PASSWORD]);
                        log("Decrypt password for user: '{0}'", item[Constants.FIELD_USER_NAME]);
                        string password = item[Constants.FIELD_PASSWORD] as string;
                        if (string.IsNullOrEmpty(password))
                        {
                            log("\tCan't decrypt password: password is empty");
                            continue;
                        }
                        item[Constants.FIELD_PASSWORD] = CredentialsCryptographer.Encrypt(password);
                        item.Update();
                    }
                }
            }
        }

        private static void log(string msg, params object[] args)
        {
            try
            {
                msg = string.Format(msg, args);
                msg = string.Format("{0}\t{1}\n", DateTime.Now.ToString("yyyy.MM.dd HH:mm:ss"), msg);
                File.AppendAllText("c://temp/_ssoextension_encryptpasswords.txt", msg);
            }
            catch { }
        }
    }
}