using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Ant.Data;
using System.Data;
using System.Transactions;
using System.Reflection;
using System.Text.RegularExpressions;
using System.Configuration;
using Ant.Frame;
using Ant.ORM;

namespace Ant.ORM
{
    /// <summary>
    ///多表操作数据持久类
    /// <remarks>要求配置Ant.Data配置节</remarks>
    /// </summary>
    public class PersistMore
    {
        private static string logfile = ConfigurationManager.AppSettings["DataDynamicsARLic"].ToLower();
        public static string ConnectionType = ConfigurationManager.AppSettings["ConnectionType"];//连接方式
        //private DataAccess DAO = DataAccessFactory.CreateDataAccess(Config.DefaultDatabaseProperty);

        #region 将实体转成SQL语句


        #region 插入INTSET方法
        /// <summary>
        /// 保存实体对象
        /// </summary>
        /// <param name="entity">实体对象</param>
        /// <returns></returns>
        public bool SaveEntity(Dictionary<string, EntyTypeData> listtype)
        {
            DataAccess db = null;
            using (TransactionScope soce = new TransactionScope())
            {
                try
                {
                    QueryCommandBuilders querycommd = new QueryCommandBuilders();
                    foreach (EntyTypeData mod in listtype.Values)
                    {
                        MetaData md = new MetaData();
                        md.FiledMeta= MetaDataManager.GetMetaData(mod.EntityValue.GetType());//获取实体的元数据
                        //if ((Object.Equals(db, null)) || (Object.Equals(db, DBNull.Value)))
                        //{
                        //    db = DataAccessFactory.CreateDataConnection(md.ModuleName);//创建数据库连接
                        //}
                        QueryCommandBuilder qcBuilder = QueryCommandBuilder.Instance(db.DatabaseType);//创建不同的SQL语句
                        qcBuilder.Md = md;//所有实体属性
                        qcBuilder.PersistType = MetaDataManager.GetEntityType(mod.EntityValue);//操作类型
                        qcBuilder.QueryComm = qcBuilder.GetQueryCommand();
                        querycommd.Add(qcBuilder);
                    }
                    int num = 0;
                    foreach (QueryCommandBuilder querymod in querycommd)
                    {
                        num = num + db.ExecuteNonQuery(querymod.QueryComm.CommandText, querymod.QueryComm.Parameters);
                    }
                    soce.Complete();
                    return num > 0;
                }
                catch (Exception ex)
                {
                   
                    return false;
                }
            }
        }

        /// <summary>
        /// 可以实现不在同一个数据库的事务提交（异步）
        /// </summary>
        /// <param name="listtype"></param>
        /// <returns></returns>
        public bool SubmitChanges(Dictionary<string, EntyTypeData> listtype)
        {
            DataAccess db = null;
            using (TransactionScope soce = new TransactionScope())
            {
                try
                {
                    QueryCommandBuilders querycommd = new QueryCommandBuilders();
                    foreach (EntyTypeData mod in listtype.Values)
                    {

                        MetaData md = new MetaData();
                        md.FiledMeta = MetaDataManager.GetMetaData(mod.EntityValue.GetType());//获取实体的元数据
                        //if ((Object.Equals(db, null)) || (Object.Equals(db, DBNull.Value)))
                        //{
                        //    db = DataAccessFactory.CreateDataConnection(md.ModuleName);//创建数据库连接
                        //}
                        QueryCommandBuilder qcBuilder = QueryCommandBuilder.Instance(db.DatabaseType);//创建不同的SQL语句
                        qcBuilder.Md = md;//所有实体属性
                        qcBuilder.PersistType = MetaDataManager.GetEntityType(mod.EntityValue);
                        qcBuilder.QueryComm = qcBuilder.GetQueryCommand();
                        querycommd.Add(qcBuilder);
                    }
                    int num = 0;
                    foreach (QueryCommandBuilder querymod in querycommd)
                    {
                        num = num + db.ExecuteNonQuery(querymod.QueryComm.CommandText, querymod.QueryComm.Parameters);
                    }
                    soce.Complete();
                    return num > 0;
                }
                catch (Exception ex)
                {
                   
                    return false;
                }
            }

        }

        #endregion


        #region 删除DELETE方法
        public bool DeleteEntity(Dictionary<string, EntyTypeData> listtype)
        {
            DataAccess db = null;
            try
            {
                QueryCommandBuilders querycommd = new QueryCommandBuilders();
                foreach (EntyTypeData entity in listtype.Values)
                {
                    MetaData md = new MetaData();
                    md.FiledMeta= MetaDataManager.GetMetaData(entity.GetType()); 
                    //if ((Object.Equals(db, null)) || (Object.Equals(db, DBNull.Value)))
                    //{
                    //    db = DataAccessFactory.CreateDataConnection(md.ModuleName);//创建数据库连接
                    //}
                    QueryCommandBuilder qcBuilder = QueryCommandBuilder.Instance(db.DatabaseType);//创建不同的SQL语句
                    qcBuilder.Md = md;//所有实体属性
                    qcBuilder.EntityType = md.FiledMeta.EntityType;
                    qcBuilder.PersistType = EntityPersistType.Delete;
                    //qcBuilder.Fields = MetaDataManager.GetEntityFields(entity);
                    qcBuilder.QueryComm = qcBuilder.GetQueryCommand();
                    querycommd.Add(qcBuilder);
                }
                int num = 0;
                foreach (QueryCommandBuilder querymod in querycommd)
                {
                    num = num + db.ExecuteNonQuery(querymod.QueryComm.CommandText, querymod.QueryComm.Parameters);
                }
                return num > 0;
            }
            catch (Exception ex)
            {
               
                return false;
            }
            finally
            {
                db.Close();
                db = null;
            }
        }

        #endregion

        #endregion

        







    }
}