using Swift.web.Component.Grid;
using Swift.web.Component.Grid.gridHelper;
using System;
using System.Collections.Generic;
using System.IO;
using System.Security.Cryptography;
using System.Text;

namespace Swift.web.Library
{
    public static class WebUtils
    {
        public static string LoadSlabGrid(string masterId, string masterIdDesc, string detailIdDesc, string proc)
        {
            var grid = new SwiftGrid();
            grid.ColumnList = new List<GridColumn>
                                  {
                                      new GridColumn("fromAmt", "Amt From", "40", "M"),
                                      new GridColumn("toAmt", "Amt To", "40", "M"),
                                      new GridColumn("pcnt", "Perc", "30", "M"),
                                      new GridColumn("minAmt", "Min Amt", "40", "M"),
                                      new GridColumn("maxAmt", "Max Amt", "40", "M")
                                  };

            grid.GridName = "grd_slab";

            grid.GridType = 1;

            grid.EnableCookie = false;
            grid.EnableFilterCookie = false;
            grid.DisableJsFilter = true;
            grid.DisableSorting = true;
            grid.ShowFilterForm = false;
            grid.ShowPagingBar = false;
            grid.RowIdField = detailIdDesc;

            grid.AllowEdit = false;
            grid.AllowDelete = false;
            grid.GridWidth = 225;

            string sql = "EXEC " + proc + " @flag = 's', @" + masterIdDesc + " = " + grid.FilterString(masterId);
            grid.SetComma();

            return grid.CreateGrid(sql);
        }


        public static string DecryptString( string cipherText)
        {
            var key = GetStatic.ReadWebConfig("encryptKey");

            byte[] iv = new byte[16];
            byte[] buffer = Convert.FromBase64String(cipherText);

            using (Aes aes = Aes.Create())
            {
                aes.Key = Encoding.UTF8.GetBytes(key);
                aes.IV = iv;
                ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);

                using (MemoryStream memoryStream = new MemoryStream(buffer))
                {
                    using (CryptoStream cryptoStream = new CryptoStream((Stream)memoryStream, decryptor, CryptoStreamMode.Read))
                    {
                        using (StreamReader streamReader = new StreamReader((Stream)cryptoStream))
                        {
                            return streamReader.ReadToEnd();
                        }
                    }
                }
            }
        }
        public static string EncryptString(string plainText)
        {
            var key = GetStatic.ReadWebConfig("encryptKey");

            byte[] iv = new byte[16];
            byte[] array;

            using (Aes aes = Aes.Create())
            {
                aes.Key = Encoding.UTF8.GetBytes(key);
                aes.IV = iv;

                ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);

                using (MemoryStream memoryStream = new MemoryStream())
                {
                    using (CryptoStream cryptoStream = new CryptoStream((Stream)memoryStream, encryptor, CryptoStreamMode.Write))
                    {
                        using (StreamWriter streamWriter = new StreamWriter((Stream)cryptoStream))
                        {
                            streamWriter.Write(plainText);
                        }

                        array = memoryStream.ToArray();
                    }
                }
            }
            return Convert.ToBase64String(array);
        }
    }
}