package com.qianwen.mdc.utils;


import org.eclipse.swt.ole.win32.OleAutomation;
import org.eclipse.swt.ole.win32.Variant;

public class Lsv2Util {
  public static final String lsv2Ctrl3ProgId = "{F9EE051D-C65D-4480-8E35-76F10FAB15C6}";
  
  private static Variant execute(OleAutomation oleAutomation, String methodName) {
    return execute(oleAutomation, methodName, null);
  }
  
  private static Variant execute(OleAutomation oleAutomation, String methodName, Variant[] args) {
    int mid = getID(oleAutomation, methodName);
    return execute(oleAutomation, mid, args);
  }
  
  private static Variant execute(OleAutomation oleAutomation, int mid, Variant[] args) {
    Variant rtnv;
    if (mid < 0)
      return null; 
    if (args == null) {
      rtnv = oleAutomation.invoke(mid);
    } else {
      rtnv = oleAutomation.invoke(mid, args);
    } 
    return rtnv;
  }
  
  private static int getID(OleAutomation oleAutomation, String name) {
    try {
      int[] ids = oleAutomation.getIDsOfNames(new String[] { name });
      if (ids == null)
        return -1; 
      return ids[0];
    } catch (RuntimeException e) {
      e.printStackTrace();
      return -1;
    } 
  }
  
  public static String getLastError(OleAutomation oleAutomation) {
    String methodName = "LastError";
    return execute(oleAutomation, methodName).getString();
  }
  
  public static String getLastErrorString(OleAutomation oleAutomation) {
    String methodName = "LastErrorString";
    return execute(oleAutomation, methodName).getString();
  }
  
  public static boolean connect(OleAutomation oleAutomation) {
    String methodName = "Connect";
    return execute(oleAutomation, methodName).getBoolean();
  }
  
  public static boolean testConnection(OleAutomation oleAutomation) {
    String methodName = "TestConnection";
    Variant[] args = { new Variant(2) };
    return execute(oleAutomation, methodName, args).getBoolean();
  }
  
  public static boolean disConnect(OleAutomation oleAutomation) {
    String methodName = "DisConnect";
    return execute(oleAutomation, methodName).getBoolean();
  }
  
  public static boolean reConnect(OleAutomation oleAutomation) {
    String methodName = "ReConnect";
    return execute(oleAutomation, methodName).getBoolean();
  }
  
  public static void setMedium(OleAutomation oleAutomation, int medium) {
    String methodName = "Medium";
    Variant[] args = { new Variant(medium) };
    execute(oleAutomation, methodName, args);
  }
  
  public static void setIPAddress(OleAutomation oleAutomation, String ipAddress) {
    String methodName = "IPAddress";
    Variant[] args = { new Variant(ipAddress) };
    execute(oleAutomation, methodName, args);
  }
  
  public static void setPort(OleAutomation oleAutomation) {
    String methodName = "Port";
    execute(oleAutomation, methodName);
  }
  
  public static void setTransferMode(OleAutomation oleAutomation, Integer mode) {
    String methodName = "TransferMode";
    Variant[] args = { new Variant(mode.intValue()) };
    execute(oleAutomation, methodName, args);
  }
  
  public static void setHostFunction(OleAutomation oleAutomation, Boolean hostFunction) {
    String methodName = "HostFunction";
    Variant[] args = { new Variant(hostFunction.booleanValue()) };
    execute(oleAutomation, methodName, args);
  }
  
  public static String getVersionTNC(OleAutomation oleAutomation) {
    String methodName = "VersionTNC";
    return execute(oleAutomation, methodName).getString();
  }
  
  public static String getProgramName(OleAutomation oleAutomation) {
    String methodName = "ReceiveDNCInfo";
    short type = 3;
    int InfoPara = 0;
    Variant[] args = { new Variant(type), new Variant(InfoPara) };
    return execute(oleAutomation, methodName, args).getString();
  }
  
  public static String receiveMemBlock(OleAutomation oleAutomation, short type, short address, short count) {
    String methodName = "ReceiveMemBlock";
    Variant[] args = { new Variant(type), new Variant(address), new Variant(count) };
    return execute(oleAutomation, methodName, args).getString();
  }
}