using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using QMAPP.Entity.Sys;
using QMFrameWork.Data;
using System.Data;

namespace QMAPP.DAL.Sys
{
    /// <summary>
    /// 文件管理数据层
    /// 创建者：王丹丹
    /// 创建时间：2015-03-17
    /// </summary>
    public class FileInfoDAL : BaseDAL
    {
        #region 获取信息
        /// <summary>
        /// 获取信息
        /// </summary>
        /// <param name="">条件</param>
        /// <returns>*信息</returns>
        public FileInfo Get(FileInfo model)
        {
            try
            {
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    //获取信息
                    model = session.Get<FileInfo>(model);
                }
                return model;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion 
        
        #region 获取信息
        /// <summary>
        /// 获取信息
        /// </summary>
        /// <param name="">条件</param>
        /// <returns>*信息</returns>
        public IList<FileInfo> GetList(FileType model)
        {
            IList<FileInfo> list = new List<FileInfo>();
            StringBuilder sqlBuilder = new StringBuilder();
            List<DataParameter> parameters = new List<DataParameter>();
            try
            {
                using (IDataSession session = AppDataFactory.CreateMainSession())
                { 
                    //删除基本信息
                    sqlBuilder.Append(" SELECT FI.PID,FI.FILENAME,FI.FILESTORAGENAME,FI.REMARK, ");
                    sqlBuilder.Append(" FI.TYPENO,FI.CREATEUSER,FI.CREATEDATE FROM T_QM_FILEINFO FI ");
                    sqlBuilder.Append(" LEFT JOIN T_QM_FILETYPE FT ON FT.TYPENO=FI.TYPENO ");
                    sqlBuilder.Append(" WHERE FT.TYPENO=@TYPENO");
                    parameters.Add(new DataParameter { ParameterName = "TYPENO", DataType = DbType.String, Value = model.TYPENO });

                    string sql = this.ChangeSqlByDB(sqlBuilder.ToString(), session);
                    list = session.GetList<FileInfo>(sql, parameters.ToArray());
                }
                return list;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 获取列表
        /// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="condition">条件</param>
        /// <param name="page">数据页</param>
        /// <returns>数据页</returns>
        public DataPage GetList(FileInfo condition, DataPage page)
        {
            string sql = null;
            List<DataParameter> parameters = new List<DataParameter>();
            try
            {
                sql = this.GetQuerySql(condition, ref parameters);
                //分页关键字段及排序
                page.KeyName = "PID";
                if (string.IsNullOrEmpty(page.SortExpression))
                {
                    page.SortExpression = "CREATEDATE DESC";
                }
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    sql = this.ChangeSqlByDB(sql, session);
                    page = session.GetDataPage<FileInfo>(sql, parameters.ToArray(), page);
                }
                return page;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 获取查询语句
        /// <summary>
        /// 获取查询语句
        /// </summary>
        /// <param name="user">查询条件</param>
        /// <param name="parameters">参数</param>
        /// <returns>查询语句</returns>
        private string GetQuerySql(FileInfo condition, ref List<DataParameter> parameters)
        {
            StringBuilder sqlBuilder = new StringBuilder();
            StringBuilder whereBuilder = new StringBuilder();
            try
            {
                //构成查询语句
                sqlBuilder.Append(" SELECT F.PID,F.FILENAME,F.FILESTORAGENAME,F.REMARK,F.TYPENO,F.CREATEUSER, ");
                sqlBuilder.Append(" F.CREATEDATE AS CREATEDATE,C.USERNAME AS CREATEUSERNAME,FT.TYPENAME");
                sqlBuilder.Append(" FROM T_QM_FILEINFO F ");
                sqlBuilder.Append(" LEFT JOIN T_QM_USER C ON C.USERID=F.CREATEUSER ");
                sqlBuilder.Append(" LEFT JOIN T_QM_FILETYPE FT ON FT.TYPENO=F.TYPENO "); 
                //查询条件
                //文件名
                if (string.IsNullOrEmpty(condition.FILENAMETXT) == false)
                {
                    whereBuilder.Append(" AND F.FILENAME LIKE @FILENAMETXT");
                    parameters.Add(new DataParameter { ParameterName = "FILENAMETXT", DataType = DbType.String, Value = "%" + condition.FILENAMETXT + "%" });
                }
                //文件类型
                if (string.IsNullOrEmpty(condition.TYPENO) == false)
                {
                    whereBuilder.Append(" AND F.TYPENO =@TYPENO");
                    parameters.Add(new DataParameter { ParameterName = "TYPENO", DataType = DbType.String, Value = condition.TYPENO });
                }
                if (whereBuilder.Length > 0)
                {
                    sqlBuilder.Append(" WHERE " + whereBuilder.ToString().Substring(4));
                }
                return sqlBuilder.ToString();
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 信息是否重复
        /// <summary>
        /// 判断名称是否存在
        /// </summary>
        /// <param name="info"></param>
        /// <returns>true:已存在；fasel:不存在。</returns>
        public bool ExistsFileInfo(FileInfo model)
        {
            StringBuilder sqlBuilder = new StringBuilder();
            StringBuilder whereBuilder = new StringBuilder();
            List<DataParameter> parameters = new List<DataParameter>();
            int count = 0;
            try
            {
                sqlBuilder.Append("SELECT COUNT(PID) FROM T_QM_FILEINFO");
                if (string.IsNullOrEmpty(model.PID) == false)
                {
                    whereBuilder.Append(" AND PID =@PID ");
                    parameters.Add(new DataParameter { ParameterName = "PID", DataType = DbType.String, Value = model.PID });
                } 
                if (whereBuilder.Length > 0)
                {
                    sqlBuilder.Append(" WHERE " + whereBuilder.ToString().Substring(4));
                }
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    string sql = this.ChangeSqlByDB(sqlBuilder.ToString(), session);
                    count = Convert.ToInt32(session.ExecuteSqlScalar(sql, parameters.ToArray()));
                }
                if (count > 0)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }


        #endregion

        #region 插入信息
        /// <summary>
        /// 插入信息(单表)
        /// </summary>
        /// <param name="">信息</param>
        /// <returns>插入行数</returns>
        public int Insert(FileInfo model)
        {
            int count = 0;
            try
            {
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    //插入基本信息
                    count = session.Insert<FileInfo>(model);
                }
                return count;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion

        #region 更新信息
        /// <summary>
        /// 更新信息
        /// </summary>
        /// <param name=""></param>
        /// <returns>更新行数</returns>
        public int Update(FileInfo model)
        {
            int count = 0;
            try
            {
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    //更新基本信息
                    count = session.Update<FileInfo>(model);
                }
                return count;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion
         
        #region  删除文件
        /// <summary>
        ///  删除文件
        /// </summary>
        /// <param name=""></param>
        /// <returns>删除个数</returns>
        public int Delete(FileInfo model)
        {
            StringBuilder sqlBuilder = new StringBuilder();
            List<DataParameter> parameters = new List<DataParameter>();
            int count = 0;
            try
            {
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    //删除基本信息
                    sqlBuilder.Append("DELETE FROM T_QM_FILEINFO ");
                    sqlBuilder.Append("WHERE  PID = @PID ");
                    parameters.Add(new DataParameter { ParameterName = "PID", DataType = DbType.String, Value = model.PID });
                    string sql = this.ChangeSqlByDB(sqlBuilder.ToString(), session);
                    count = session.ExecuteSql(sql, parameters.ToArray());
                }
                return count;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion
         
        #region 删除文件类型下的文件
        /// <summary>
        /// 删除文件类型下的文件
        /// </summary>
        /// <param name=""></param>
        /// <returns>删除个数</returns>
        public int DeleteByTypeNo(FileInfo model)
        {
            StringBuilder sqlBuilder = new StringBuilder();
            List<DataParameter> parameters = new List<DataParameter>();
            int count = 0;
            try
            {
                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    //删除基本信息
                    sqlBuilder.Append("DELETE FROM T_QM_FILEINFO ");
                    sqlBuilder.Append("WHERE  TYPENO = @TYPENO ");
                    parameters.Add(new DataParameter { ParameterName = "TYPENO", DataType = DbType.String, Value = model.TYPENO });
                    string sql = this.ChangeSqlByDB(sqlBuilder.ToString(), session);
                    count = session.ExecuteSql(sql, parameters.ToArray());
                }
                return count;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        #endregion
        
        #region 获取导出文件信息
        /// <summary>
        /// 获取导出文件信息
        /// </summary>
        /// <param name="model">查询条件</param>      
        /// <returns>数据</returns>
        public DataTable GetExportData(FileInfo model)
        {
            DataTable dt = null;
            string sql = null;
            List<DataParameter> parameters = new List<DataParameter>();
            try
            {
                //构成查询语句 
                sql = GetQuerySql(model, ref parameters);
                sql += " ORDER BY CREATEDATE DESC";

                using (IDataSession session = AppDataFactory.CreateMainSession())
                {
                    sql = this.ChangeSqlByDB(sql, session);
                    dt = session.GetTable(sql, parameters.ToArray());
                }
                dt.TableName = "FileInfo";
                return dt;
            }
            catch (Exception ex)
            {
                throw;
            }

        }
        #endregion
    }
}