using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

using Sog;
using ProtoCSStruct;
using MySql.Data.MySqlClient;

namespace Name
{
    public class NameOperator
    {
        private MySqlDB m_mySqlDb;

        //private long maxUserIdByIndex = 0;
		//table表格做索引做Key,m_maxUserIdByIndex的值做value
		private Dictionary<int,long> m_maxUserIdDict = new Dictionary<int, long>();

		//销毁的时候置空
		public void Dispose()
        {
            m_mySqlDb.Dispose();
            m_mySqlDb = null;
        }

        public NameOperator(string db, string ip, string user, string password)
        {
            m_mySqlDb = new MySqlDB(db, ip, user, password);
        }

        public void KeepAlive()
        {
            string strSql = "select * from tbname_1 where hashName=?hashName";
            MySqlParameter p_accountId = new MySqlParameter("?hashName", MySqlDbType.VarChar, 200) { Value = "keep_alive" };

            //TraceLog.Trace("NameOperator.KeepAlive exec sql: {0}", strSql);

            MySqlDataReader reader = m_mySqlDb.ExecReader(strSql, p_accountId);
            if (reader == null)
            {
                TraceLog.Trace("NameOperator.KeepAlive no record in account table, return reader is null!");
                return;
            }

            //记住一定要Close
            reader.Close();

            TraceLog.Trace("NameOperator.KeepAlive exec at {0}", DateTime.Now);
        }
        public tbName QueryName(string hashName, int realmId)
        {
            string tableName = NameServerUtils.GetNameTableName(0, hashName);

            TraceLog.Trace("QueryName hashName {0} table {1}", hashName, tableName);

            string strSql = "select * from " + tableName
                + " where hashName=?hashName ";
 
            MySqlParameter p_hashName = new MySqlParameter("?hashName", MySqlDbType.VarChar,200) { Value = hashName }; 

            TraceLog.Trace("exec sql: {0}", strSql);

            MySqlDataReader reader = m_mySqlDb.ExecReader(strSql, p_hashName);
            if (reader == null)
            {
                TraceLog.Trace("no record in table {0}, return reader is null!", tableName);
                return null;
            }

            if (reader.HasRows == false)
            {
                TraceLog.Trace("no record in table {0}", tableName);
                //记住一定要Close
                reader.Close();

                return null;
            }

            tbName tbName = null;

            try
            {
                reader.Read();

                tbName = new tbName();
                tbName.HashName = reader.GetString("hashName");
                tbName.StrName = reader.GetString("strName");
                tbName.AccountID = reader.GetString("accountId");

                TraceLog.Trace("query success HashName {0} AccountID {1}", tbName.HashName, tbName.AccountID);  
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);
            }
            finally
            {
                reader.Close();
            }

            return tbName;
        }

        public bool InsertName(string hashName, string strName, string accountID, int realmId)
        {
            string tableName = NameServerUtils.GetNameTableName(0, hashName);

            TraceLog.Trace("InsertName hashName {0} strName {1} accountID {2}", hashName
                , strName, accountID);

            string strSql = "insert into " + tableName + "(hashName,strName,accountID, realmId)"
                + " values(?hashName,?strName,?accountID, ?realmId)";

            MySqlParameter p_hashName = new MySqlParameter("?hashName", MySqlDbType.VarChar, 200) { Value = hashName };
            MySqlParameter p_strName = new MySqlParameter("?strName", MySqlDbType.VarChar, 200) { Value = strName };
            MySqlParameter p_accountId = new MySqlParameter("?accountId", MySqlDbType.VarChar, 200) { Value = accountID };
            MySqlParameter p_realmId = new MySqlParameter("?realmId", MySqlDbType.Int32) { Value = realmId };
            
            TraceLog.Trace("exec sql: {0}", strSql);

            MySqlDataReader reader = m_mySqlDb.ExecReader(strSql, p_hashName, p_strName, p_accountId, p_realmId);
            if (reader == null)
            {
                TraceLog.Trace("InsertName failed table {0}, return reader is null!", tableName);
                return false;
            }

            reader.Close();

            TraceLog.Trace("InsertName hashName {0} strName {1} accountID {2} success", hashName
                , strName, accountID);

            return true;
        }

    }
}