using System;
using System.Data;
using System.Data.OleDb;

namespace Kingo.RuleCheck.CheckHelper
{
    public class MDBHelper
    {
        private OleDbConnection Conn;

        public MDBHelper()
        {
        }

        public MDBHelper(string connStr)
        {
            Conn = new OleDbConnection($"provider=Microsoft.JET.OLEDB.4.0;Data Source={connStr}");
        }

        public void connOpen()
        {
            try
            {
                Conn.Open();
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public DataTable ExecuteDataTable(string commandText)
        {
            DataTable table = new DataTable();
            try
            {
                using (OleDbDataAdapter adp = new OleDbDataAdapter(commandText, Conn))
                {
                    adp.Fill(table);
                }
                return table;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public OleDbDataReader ExecuteDataReader(string commandText)
        {
            try
            {
                using (OleDbCommand comm = new OleDbCommand(commandText, Conn))
                {
                    return comm.ExecuteReader();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public object ExecuteScalar(string commandText)
        {
            try
            {
                using (OleDbCommand comm = new OleDbCommand(commandText, Conn))
                {
                    return comm.ExecuteScalar();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public object ExecuteNonQuery(string commandText)
        {
            try
            {
                using (OleDbCommand comm = new OleDbCommand(commandText, Conn))
                {
                    return comm.ExecuteNonQuery();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public void DisConn()
        {
            try
            {
                if (Conn != null)
                {
                    Conn.Dispose();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
    }
}