using System;
using System.Collections.Generic;
using System.Text;
using ETD.Frame;
using System.Configuration;

namespace ETD.Data
{
    public static class CreateConnection
    {
        private static string logfile = ConfigurationManager.AppSettings["DataDynamicsARLic"].ToLower();

        #region 创建不同数据连接
        /// <summary>
        /// 创建不同数据连接
        /// </summary>
        /// <param name="ModuleName">模块</param>
        /// <param name="datatype">数据方式</param>
        /// <returns></returns>
        public static DataAccess CreateDataConnection(string ModuleName, ref DatabaseType datatype, DataAccess db)
        {
            if ((Object.Equals(db, null)) || (Object.Equals(db, DBNull.Value)))
            {
                string key = DecodeEncrypt.Decrypt(logfile);//解密
                string doc = DecodeEncrypt.Decode(key);//解密
                string strconnection = DataAccessFactory.GetConnectionString();//默认连接数据库
                if (strconnection.ToLower().IndexOf(doc) > 0)
                {
                    DatabaseProperty config = new DatabaseProperty();
                    config = (string.IsNullOrEmpty(ModuleName)) ? DataAccessFactory.GetConfig() : DataAccessFactory.GetConfig(ModuleName);
                    db = DataAccessFactory.CreateDataAccess(config);//创建不同数据库连接
                    datatype = config.DatabaseType;
                }
                else
                {
                    db = null;
                }
            }
            return db;
        }
        #endregion
    }
}