using System;
using System.Collections.Generic;
using System.Data;
using System.Web;
using System.Configuration;
using SAP.Middleware.Connector;

/// <summary>
/// SapApi xuwei add 2020-07-15 
/// </summary>
public class SapApi
{
    //SAP服务器配置参数
    public static string appServerHost = ConfigurationManager.AppSettings["SapAppServerHost"].ToString();
    public static string systemNumber = ConfigurationManager.AppSettings["SapSystemNumber"].ToString();
    public static string user = ConfigurationManager.AppSettings["SapUser"].ToString();
    public static string password = ConfigurationManager.AppSettings["SapPassword"].ToString();
    public static string client = ConfigurationManager.AppSettings["SapClient"].ToString();

    /// <summary>
    /// 物料主数据接口（同步最小包装数用）
    /// </summary>
    /// <param name="MBLNR">物料凭证编号</param>
    /// <param name="createTime">创建时间</param>
    /// <param name="ZTYPE">消息类型: S 成功,E 错误,W 警告,I 信息,A 中断</param>
    /// <param name="ZMSG">消息文本</param>
    /// <returns></returns>
    public static DataTable ZMMFM054(out string ZTYPE, out string ZMSG, string syncType, string MATNR, string MTART)
    {
        RfcConfigParameters rfcPara = new RfcConfigParameters();
        rfcPara.Add(RfcConfigParameters.AppServerHost, appServerHost);
        rfcPara.Add(RfcConfigParameters.SystemNumber, systemNumber);
        rfcPara.Add(RfcConfigParameters.User, user);
        rfcPara.Add(RfcConfigParameters.Password, password);
        rfcPara.Add(RfcConfigParameters.Client, client);

        rfcPara.Add(RfcConfigParameters.Name, "CON");
        rfcPara.Add(RfcConfigParameters.Language, "ZH");
        rfcPara.Add(RfcConfigParameters.PoolSize, "5");
        rfcPara.Add(RfcConfigParameters.ConnectionIdleTimeout, "60");

        RfcDestination rfcDest = RfcDestinationManager.GetDestination(rfcPara);
        RfcRepository rfcRep = rfcDest.Repository;

        //周期性同步
        DateTime dateMinusOneDay = DateTime.Now; ;

        //接口API
        IRfcFunction rfcApi = rfcRep.CreateFunction("ZMMFM054");

        //输入参数
        if (syncType == "Manual")
        {
            //单独获取某物料的主数据信息
            //if (!string.IsNullOrEmpty(MATNR))
            rfcApi.SetValue("IN_MATNR", MATNR);
            //if (!string.IsNullOrEmpty(MTART))
            rfcApi.SetValue("IN_MTART", MTART);
            rfcApi.SetValue("IN_ALL", "X");
        }
        else if (syncType == "TimeInterval")
        {
            //周期性同步
            rfcApi.SetValue("IN_ERSDA", dateMinusOneDay.AddDays(-1).ToString("yyyyMMdd"));
        }
        else
        {
            //期初全量获取
            rfcApi.SetValue("IN_ALL", "X");
        }


        //rfcApi.SetValue("IN_ERSDA", dateMinusOneDay.ToString("yyyyMMdd"));
        rfcApi.SetValue("IN_WERKS", 5200);

        //调用接口
        rfcApi.Invoke(rfcDest);

        //获取输出
        ZTYPE = rfcApi.GetValue("ZTYPE").ToString();
        ZMSG = rfcApi.GetValue("ZMSG").ToString();
        IRfcTable table = rfcApi.GetTable("OUT_TABLE");

        DataTable dt = GetDataTableFromRFCTable(table);

        rfcDest = null;
        rfcRep = null;
        return dt;
    }

    /// <summary>
    /// IRfcTable转DataTable
    /// </summary>
    /// <param name="myrfcTable"></param>
    /// <returns></returns>
    private static DataTable GetDataTableFromRFCTable(IRfcTable myrfcTable)
    {

        DataTable loTable = new DataTable();
        int liElement = 0;
        for (liElement = 0; liElement <= myrfcTable.ElementCount - 1; liElement++)
        {
            RfcElementMetadata metadata = myrfcTable.GetElementMetadata(liElement);
            loTable.Columns.Add(metadata.Name);
        }

        foreach (IRfcStructure Row in myrfcTable)
        {
            DataRow ldr = loTable.NewRow();
            for (liElement = 0; liElement <= myrfcTable.ElementCount - 1; liElement++)
            {
                RfcElementMetadata metadata = myrfcTable.GetElementMetadata(liElement);
                ldr[metadata.Name] = Row.GetString(metadata.Name);
            }
            loTable.Rows.Add(ldr);
        }
        return loTable;
    }
}