//ConsoleWindow.java 
  
import  java.io.*; 

public class shell extends VMachine
{
	String shhname;
	boolean initialrun;
	String initialworker;

	public shell ()
	{// Used when new instance created
	}

	public shell (String name, String worker)
	{// Used when creating a shell and executing a worker
	 // Also used for initial startup

		shhname = name;
		initialworker = worker;
		initialrun = true;
		
	}
  
	public shell (String name)
	{// Used when creating new shell
		ConsoleWindow console = new ConsoleWindow(name);
	}

	public void run () 
	{ 
		try {
		sysapi.Write(OUT,"% ");
		String str = sysapi.Read(IN);
		String exitstr = str.toLowerCase();

		Parser line = new Parser();
		Command dennis = new Command();
//		dennis.init();
		
		while(exitstr.compareTo("exit") != 0)//console.Active())
		{ 
			CommandArray inputLine = new CommandArray();
			try { inputLine = line.Parse(str); }
			catch (Exception e) {}
		try {
//			dennis = inputLine.Commands[0];
//			int i=0;
//			while (dennis.command != null)
//			{ 
//  			  sysapi.Write(OUT, inputLine.count+" command: "+dennis.command+"\n"); 
//			  if (dennis.args[0] != null) 
//			    { 
//				int temp = 0;
//				sysapi.Write(OUT, "argcount: "+dennis.argcount+"\n"); 
//				while (dennis.args[temp] != null){
//				  sysapi.Write(OUT, "arg: "+dennis.args[temp]+"\n"); 
//				  temp++;
//				}
//			    }
//			  if (dennis.in_flag != 0) 
//			    { sysapi.Write(OUT, "input redirection: "+dennis.input+"\n"); }
//			  if (dennis.out_flag != 0) 
//			    { sysapi.Write(OUT, "output redirection: "+dennis.output+"\n"); }
//
//			  execute(dennis);
					
			  if(sysapi.findUser(owner).isClosing)
			  {
				break;
			  }				
					
//			  i++;
//			  dennis = inputLine.Commands[i];
//			}//end while dennis
		}//end try
		catch (Exception e){
//			sysapi.Write(OUT,"Command not recognized or not found.\n");
		}//catch
			execute(inputLine);

			sysapi.Write(OUT,"% ");
			str = sysapi.Read(IN);
			exitstr = str.toLowerCase();

		}//while not exit
		
		sysapi.Exit(vmh,owner);
	}//try
	catch (Exception e) {}
	
		//console.dispose();
		//console.Always_Wait_For_Finish(); 
		//System.exit(0); 
	}//run  
	
	public void execute(CommandArray inputLine)
//Command dennis)
//String strworker)
	{
//				try { sysapi.Write(OUT,"command size: " + inputLine.count + "\n");	}
//				catch (Exception e) {}

		FileClassLoader fileclass = null;
		fileclass = new FileClassLoader();
		fileclass.bindir = "C:\\java\\OSVM\\bin\\";
		Class newclass = null;
	
		int argstart;
	

		int i=0;
		Command dennis = new Command();
		dennis = inputLine.Commands[0];
		while (i < inputLine.count)
		{ 
//	try { sysapi.Write(OUT,"command in loop: " + dennis.command + "\n");	}
//	catch (Exception e) {}
			VMachine vm1 = null;

			Handle current_in;
			Handle current_out;
			if (dennis.in_flag != 0) 
			{ current_in = sysapi.OpenFile(dennis.input); }
			else
			{ current_in = IN; }
			if (dennis.out_flag != 0) 
			{ current_out = sysapi.OpenFile(dennis.output); }
			else
			{ current_out = OUT; }
	
//				try { sysapi.Write(OUT,"command " + i + " in loop: " + dennis.command + "\n");	}
//				catch (Exception e) {}

			String[] cmdargs = new String[dennis.argcount];	// Arguments Passed to Workers
			int tempargcount = 0;
			for (tempargcount = 0; tempargcount < dennis.argcount; tempargcount++)
			{ cmdargs[tempargcount] = dennis.args[tempargcount]; }

			try {
			newclass = fileclass.loadCmd(dennis.command); //strworker);
			} catch(Exception ex)
			{
				try { sysapi.Write(OUT,"Command not recognized or not found.\n");	}
				catch (Exception e) {}
			}

			try
			{
				Handle vmh1 = sysapi.CreateVM(current_in,current_out,newclass,owner,cmdargs,this,null,0);
				sysapi.findUser(owner).addHandle(vmh1);
			} catch(Exception e)
			{
//				try { sysapi.Write(OUT,"Program could not execute.\n"); }
//				catch (Exception ex) {}
			}

//				try { sysapi.Write(OUT,"again command: " + dennis.command + "\n"); }
//				catch (Exception e) {}

			i++;
			dennis = inputLine.Commands[i];
		}//end while
		sysapi.Compute(vmh);
//				try { sysapi.Write(OUT,"out of loop\n");	}
//				catch (Exception e) {}

//		return;
	}//end execute
};