using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Txgy.EWS.Client.Common
{
    internal class RemoteMySqlDownloadData
    {
        //public MySqlConnection RemoteConn { get; set; }
        //public MySqlCommand Comm { get; set; }
        //public MySqlDataAdapter Adap { get; set; }
        //public MySqlDataReader DataReader { get; set; }

        ///// <summary>
        ///// 下载Json文件
        ///// </summary>
        ///// <param name="eventTime">事件时间</param>
        ///// <param name="savePath">保存路径</param>
        ///// <param name="saveName">保存名称</param>
        ///// <param name="tableName">表名</param>
        ///// <returns></returns>
        //public int DownLoadJsonData(string eventTime, string savePath, string saveName, string tableName)
        //{
        //    string courseSql = @"select JsonFile from " + tableName + " where EventTime=@eventTime";

        //    try
        //    {
        //        if (DBConnection())
        //        {
        //            Comm = new MySqlCommand(courseSql, RemoteConn);
        //            Comm.Parameters.AddWithValue("@eventTime", eventTime);
        //            DataReader = Comm.ExecuteReader();

        //            List<byte> jsonList = new List<byte>();
        //            //开始读数据
        //            while (DataReader.Read())
        //            {
        //                byte[] blob;
        //                blob = (byte[])DataReader["JsonFile"];
        //                if (blob.Length == 0)
        //                    break;
        //                jsonList.AddRange(blob);
        //            }

        //            string jsonPath = savePath + saveName + ".json";

        //            int len = SaveBinaryFile(jsonPath, jsonList.ToArray());
        //            if (len == jsonList.Count)
        //            {
        //                return jsonList.Count;
        //            }
        //            return -1;
        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        throw ex;
        //    }
        //    finally
        //    {
        //        this.Dispose();
        //    }
        //    return -1;
        //}
        ///// <summary>
        ///// 下载波形文件
        ///// </summary>
        ///// <param name="eventTime">事件时间</param>
        ///// <param name="savePath">保存路径</param>
        ///// <param name="saveName">保存名称</param>
        ///// <param name="tableName">表名</param>
        ///// <returns></returns>
        //public int DownLoadWavedata(string eventTime, string savePath, string saveName, string tableName)
        //{
        //    string courseSql = @"select WaveData from " + tableName + " where EventTime=@eventTime";
        //    try
        //    {
        //        if (DBConnection())
        //        {
        //            Comm = new MySqlCommand(courseSql, RemoteConn);
        //            Comm.Parameters.AddWithValue("@eventTime", eventTime);
        //            DataReader = Comm.ExecuteReader();

        //            List<byte> wds = new List<byte>();
        //            //开始读数据
        //            while (DataReader.Read())
        //            {
        //                byte[] blob;
        //                blob = (byte[])DataReader["wavedata"];
        //                Console.WriteLine(blob.Length);
        //                if (blob.Length == 0)
        //                    break;
        //                wds.AddRange(blob);
        //            }
        //            string mseedPath = savePath + saveName + ".mseed";
        //            int len = SaveBinaryFile(mseedPath, wds.ToArray());
        //            if (len == wds.Count)
        //            {
        //                return wds.Count;
        //            }
        //            return -1;
        //        }
        //    }
        //    catch (Exception ex)
        //    {
        //        throw ex;
        //    }
        //    finally
        //    {
        //        this.Dispose();
        //    }
        //    return -1;
        //}
        ///// <summary>
        ///// 保存二级制文件
        ///// </summary>
        ///// <param name="fn"></param>
        ///// <param name="datas"></param>
        ///// <returns></returns>
        //public int SaveBinaryFile(string fn, byte[] datas)
        //{
        //    FileStream fs = new FileStream(fn, FileMode.OpenOrCreate);
        //    BinaryWriter binWriter = new BinaryWriter(fs);
        //    binWriter.Write(datas);
        //    binWriter.Close();
        //    fs.Close();
        //    return (int)new FileInfo(fn).Length;
        //}
        //private bool DBConnection()
        //{
        //    string connStr = ConfigurationManager.ConnectionStrings["NasMySQL"].ConnectionString;
        //    if (RemoteConn == null)
        //        RemoteConn = new MySqlConnection(connStr);
        //    try
        //    {
        //        if (RemoteConn.State != ConnectionState.Open)
        //        {
        //            RemoteConn.Open();
        //        }
        //        return true;
        //    }
        //    catch
        //    {
        //        return false;
        //    }
        //}
        //private void Dispose()
        //{
        //    if (Adap != null)
        //    {
        //        Adap.Dispose();
        //        Adap = null;
        //    }
        //    if (DataReader != null)
        //    {
        //        DataReader.Dispose();
        //        DataReader = null;
        //    }
        //    if (Comm != null)
        //    {
        //        Comm.Dispose();
        //        Comm = null;
        //    }
        //    if (RemoteConn != null)
        //    {
        //        RemoteConn.Close();
        //        RemoteConn.Dispose();
        //        RemoteConn = null;
        //    }
        //}
    }
}