using System;
using System.Collections.Generic;
using System.Data;
//using System.Data.Odbc;
using System.Data.OleDb;
using System.Linq;
using System.Text;
using System.IO;
using iAnywhere.Data.SQLAnywhere;
using System.Collections;

namespace HiiShe.Manager
{
    class DBHelper
    {
        //private static string connstring = "host=192.168.10.116;server=pos2159;userid=dba;password=sql;Connect Timeout=3;";
        private static string connstring = "host=127.0.0.1;server=" + System.Net.Dns.GetHostName() + ";userid=dba;password=sql;Connect Timeout=3;";
        //private static string connstring = "DSN=anysql1;UID=dba;PWD=sql;";
        private static string filePath = System.Threading.Thread.GetDomain().BaseDirectory + "hydb.mdb";
        private static string filePath1 = System.Threading.Thread.GetDomain().BaseDirectory + "commodity.mdb";
        private static string oleconnstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Persist Security Info=False";
        private static string oleconnstring1 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath1 + ";Persist Security Info=False";
        /// <summary>
        /// 查询本地数据库
        /// </summary>
        /// <param name="SqlString"></param>
        /// <returns></returns>
        public static DataSet QueryOdbc(string SqlString)
        {
            using (SAConnection conn = new SAConnection(connstring))
            {
                SACommand cmd = new SACommand(SqlString, conn);
                try
                {
                    conn.Open();
                    SADataAdapter adp = new SADataAdapter(cmd);
                    DataSet ds = new DataSet();
                    adp.Fill(ds);
                    conn.Close();
                    return ds;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
            }
        }
        public static bool SyBaseTest()
        {
            using (SAConnection conn = new SAConnection(connstring))
            {
                try
                {
                    conn.Open();
                    conn.Close();
                    return true;
                }
                catch
                {
                    return false;
                }
            }
        }

        /// <summary>
        /// 查询基础数据库
        /// </summary>
        /// <param name="SqlString"></param>
        /// <returns></returns>
        public static DataSet QueryOle(string SqlString)
        {
            using (OleDbConnection conn = new OleDbConnection(oleconnstring))
            {
                OleDbCommand cmd = new OleDbCommand(SqlString, conn);
                try
                {
                    conn.Open();
                    OleDbDataAdapter adp = new OleDbDataAdapter(cmd);
                    DataSet ds = new DataSet();
                    adp.Fill(ds);
                    conn.Close();
                    return ds;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
            }
        }

        /// <summary>
        /// 保存数据
        /// </summary>
        /// <param name="SQLStringList"></param>
        public static void ExecuteSqlTran(List<string> SQLStringList)
        {
            using (SAConnection conn = new SAConnection(connstring))
            {
                conn.Open();
                SACommand cmd = new SACommand();
                cmd.Connection = conn;
                SATransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n].ToString();
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                }
                catch (Exception E)
                {
                    tx.Rollback();
                    throw new Exception(E.Message);
                }
                finally
                {
                    conn.Close();
                }
            }
        }
        /// <summary>
        /// 保存数据
        /// </summary>
        /// <param name="SQLStringList"></param>
        public static void ExecuteSqlTran(string SQLString)
        {
            using (SAConnection conn = new SAConnection(connstring))
            {
                conn.Open();
                SACommand cmd = new SACommand();
                cmd.Connection = conn;
                SATransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    if (SQLString.Trim().Length > 1)
                    {
                        cmd.CommandText = SQLString;
                        cmd.ExecuteNonQuery();
                    }
                    tx.Commit();
                }
                catch (Exception E)
                {
                    tx.Rollback();
                    throw new Exception(E.Message);
                }
                finally
                {
                    conn.Close();
                }
            }
        }

        /// <summary>
        /// 保存数据（参数化）
        /// </summary>
        /// <param name="SQLStringList">事务sql语句组</param>
        public static void ExecuteSqlTran(Hashtable SQLStringList)
        {
            using (SAConnection conn = new SAConnection(connstring))
            {
                conn.Open();
                SACommand cmd = new SACommand();
                cmd.Connection = conn;
                SATransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                string strsql;
                try
                {
                    foreach (DictionaryEntry item in SQLStringList)
                    {
                        strsql = item.Key.ToString();
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            if (item.Value != null)
                            {
                                foreach (SAParameter par in (SAParameter[])item.Value)
                                {
                                    cmd.Parameters.Add(par);
                                }
                            }
                            cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                }
                catch (Exception E)
                {
                    tx.Rollback();
                    throw new Exception(E.Message);
                }
                finally
                {
                    conn.Close();
                }
            }
        }

        /// <summary>
        /// 获取最大主键ID
        /// </summary>
        /// <param name="SqlString"></param>
        /// <returns></returns>
        public static int OdbcGetMaxPKID(string SqlString)
        {
            using (SAConnection conn = new SAConnection(connstring))
            {
                SACommand cmd = new SACommand(SqlString, conn);
                try
                {
                    conn.Open();
                    int max_id = cmd.ExecuteScalar().ToString().Equals("") ? 0 : int.Parse(cmd.ExecuteScalar().ToString());
                    conn.Close();
                    return max_id;
                }
                catch (Exception ex)
                {
                    throw new Exception(ex.Message);
                }
            }
        }

        /// <summary>
        /// 备份数据
        /// </summary>
        /// <param name="SQLStringList"></param>
        public static void OleExecuteSqlTran(List<string> SQLStringList)
        {
            using (OleDbConnection conn = new OleDbConnection(oleconnstring))
            {
                conn.Open();
                OleDbCommand cmd = new OleDbCommand();
                cmd.Connection = conn;
                OleDbTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n].ToString();
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                }
                catch (OleDbException E)
                {
                    tx.Rollback();
                    throw new Exception(E.Message);
                }
                finally
                {
                    conn.Close();
                }
            }
        }
    }
}