import java.awt.image.IndexColorModel;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.Calendar;
import java.util.Scanner;
import java.util.Stack;
import java.util.Vector;

import javax.swing.plaf.basic.BasicInternalFrameTitlePane.IconifyAction;

public class Interpreter {

	Vector<Variable> var=new Vector<Variable>();
	Vector<String[]> store=new Vector<String[]>();
	Vector<Vector<String[]>> store_total=new Vector<Vector<String[]>>();
	Stack<Vector<String[]>> s_while=new Stack<Vector<String[]>>();

//	Vector
	boolean store_start=false;

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Interpreter interpreter=new Interpreter();
		interpreter.run();

     }
	public void run() {

		System.out.println("Please input something...");
		try {
		String filePath="E:\\test.txt";
		File file=new File(filePath);
		  if(file.isFile() && file.exists()) {
		      InputStreamReader isr = new InputStreamReader(new FileInputStream(file), "utf-8");
		      BufferedReader br = new BufferedReader(isr);
		      String lineTxt = null;

		       int times=0;

		      while ((lineTxt = br.readLine()) != null) {
		        System.out.println(lineTxt);
		        String line=lineTxt.replace(";", " ");
		        line=line.trim();                     //delete space in the front of the line
		        String[] word=line.split("\\s+");    //\s means space(+ one or more space)



		         if(word[0].equals("while"))
		         {
		        	 findwhile(word);
		        	 store_start=true;
		        	 continue;
		         }


		         if(word[0].equals("end"))
		         {

		        	 Vector<String[]> store=s_while.peek();
		        	 	System.out.println("*****the top of stack*****");
		        	 for(int i=0;i<store.size();i++)       //print one part of while
		        	 {
		        		 for(String ss:store.get(i))
		        		 {

		        			 System.out.print(ss);
		        		 }
		        		 System.out.println();

		        	 }

		             s_while.pop();
		             if(s_while.empty())
		             {
		            	 store_start=false;

		                 operate(0);


		             }


		         }

		          if(store_start==true&&!word[0].equals("end"))
		 		{

		        	 Vector<String[]> store=s_while.peek();
		 		     store.addElement(word);

		 		}

		         if(store_start==false)
			 		{
		        	 if(word[0].equals("clear"))
			         {
			 //X       	 System.out.println(word[1]);
			        	 clear(word[1]);
			        	 System.out.println(getX(word[1]));
			         }
			         if(word[0].equals("incr"))
			         {
			        	 Incr(word[1]);
			        	 System.out.println(getX(word[1]));
			         }
			         if(word[0].equals("decr"))
			         {
			        	 System.out.println(store_start);
			        	 decr(word[1]);
			        	 System.out.println(getX(word[1]));
			         }
			 		}

		         for(int i=0;i<var.size();i++)
		         {
		        	 Variable x=var.get(i);
		        	 System.out.println(x.getname()+":  "+x.getvalue());
		         }


		      }
		      br.close();
		    } else {
		      System.out.println("file doesn't exist.");
		    }

		}catch (Exception e) {
			// TODO: handle exception
			  System.out.println("can't read.");
		}

	}



	public void findwhile(String[] word)
	{
		if(s_while.empty())
		{
		 Vector<String[]> store=new Vector<String[]>();
		 store.addElement(word);
    	// store.addElement(word);
    	 s_while.push(store);
    	 store_total.addElement(store);            //start store syntax from while
    	 }
		else
		{
			 s_while.peek().addElement(word);
			 Vector<String[]> store=new Vector<String[]>();
			 store.addElement(word);
			 s_while.push(store);
			 store_total.addElement(store);
		}



	}


	public void operate(int x) {               //run the syntax in the evey while (and run ? times)
		// TODO Auto-generated method stub
		Vector<String[]> vs=store_total.get(x);     //in order
		for(int i=0;i<store_total.size();i++)
		{
			System.out.println("store_total 储存顺序");
			 System.out.println(store_total.get(i).get(0)[1]);
			                                                 //print store_total
		}


		String cc=vs.get(0)[1];
		int w_time=match(vs.get(0)[1]).getvalue();

		System.out.println("debug"+w_time+"   "+cc);

		for(int j=0;j<w_time;j++)
		{
			for(int i=1;i<vs.size();i++)
			{

		        if(vs.get(i)[0].equals("clear"))
		         {
		        	 clear(vs.get(i)[1]);
		        	 System.out.println(getX(vs.get(i)[1]));
		         }
		         if(vs.get(i)[0].equals("incr"))
		         {
		        	 Incr(vs.get(i)[1]);
		        	 System.out.println(getX(vs.get(i)[1]));
		         }
		         if(vs.get(i)[0].equals("decr"))
		         {
		        	 decr(vs.get(i)[1]);
		        	 System.out.println(getX(vs.get(i)[1]));
		         }
		         if(vs.get(i)[0].equals("while"))
		         {
		        	 System.out.println("while");
		        	 for(int i1=1;i1<store_total.size();i1++)
		        	 {
		        		 operate(i1);
		        	 }

		         }
			}

		}
		 for(int i=0;i<var.size();i++)
         {
        	 Variable x1=var.get(i);
        	 System.out.println(x1.getname()+":  "+x1.getvalue());
         }
	}
	public int while_o(String s_ver) {
		// TODO Auto-generated method stub

			return getX(s_ver);

		}
/*	public void while_o(String s_ver1, String s_ver3) {
		// TODO Auto-generated method stub
		int num=Integer.parseInt(s_ver3);
		int x=getX();
		while(x<num)
		{

		}
	}*/
	public void decr(String s_ver) {
		// TODO Auto-generated method stub
		Variable var=match(s_ver);
		int x=var.getvalue()-1;
		var.setvalue(x);

	}
	public void Incr(String s_ver) {
		// TODO Auto-generated method stub
	    	Variable var=match(s_ver);
			int x=var.getvalue()+1;
			var.setvalue(x);


	}
	public void clear(String s_ver) {
		// TODO Auto-generated method stub
			setX(s_ver,0);

	}
	public void setX(String s_ver,int x)     //set a value
	{
		Variable var=match(s_ver);
		var.setvalue(x);
	}
	public int getX(String s_ver)
	{
		Variable var=match(s_ver);
		return var.getvalue();
	}


	public Variable match(String s_ver)
	{
		for(int i=0;i<var.size();i++)
		{
			if(var.get(i).getname().equals(s_ver))
			{
				return var.get(i);
			}


		}
		System.out.println("creat a new variable "+s_ver);
		Variable X=new Variable(s_ver);
		var.addElement(X);
		return X;


	}


   }