package com.identityMine.filereader
{

import flash.filesystem.*;
import flash.display.MovieClip;

// The extention here is to make it so that I can independently test these routines
 public class FILEREADER extends MovieClip {


// Constructor - loads in the input file we are reading
    public function FILEREADER(){
	// Create a file object and let our app know where the file
 	// exists 
	
		// have we seen the "Begin Surface" command yet?
		var inSurface : Boolean = false;
		var inTrace : Boolean = false;
		var inSpider : Boolean = false;
		var inMove : Boolean = false;
	
		// This is the file we are reading
		var myFile:File = File.applicationDirectory;
	 	myFile = myFile.resolvePath("mySampleFile.txt");
	
		var fileStream : FileStream = new FileStream();
		fileStream.open(myFile, FileMode.READ);

		// Everything inside our file
		var fileContents : String = fileStream.readUTFBytes(fileStream.bytesAvailable);
		
		// Split our entire file based on newlines
		var splitString = fileContents.split("\n");
		
		// this prints out everything in my fileContents string
		// trace (splitString);
		
		// iterate through each element in the array
		// each represents a piece of information necessary to construct our 
		// visualization
		
		// looping variable
		var i : int;
		// splitting variable
		var split_val : int;
		
		// Regular Expression for matching a string of 1 or more digits
		var re1 = new RegExp("[0-9]+");
		
		// Regular Expression for matching a sequence of alph characters
		var re2 = new RegExp("[a-z]*[A-Z]*");
		var re3 = new RegExp("[//s]*LegAttach");
		
		var SubVals;
		
		for (i = 0; i < splitString.length; i++){
			
			// pass over comments, which begin with a "//" 
			if (splitString[i].substr(0,2) == "//"){
				continue;
			}
			
			// If we hit the "Begin Surface" command.
			split_val = "Begin Surface".length;
			if (splitString[i].substr(0,split_val) == "Begin Surface"){
				inSurface = true;
				
				// The very next line must be our surface coordinates, 
				// so we can skip it and call our surface generation function
				
				// generateSurface(num_1, num_2, num_3, num_4); /// Not Written YET
				
				// Advance past our next line
				i = i + 1;
				continue;				
			}
			

			
			// If our line starts with integers and we are in the surface description portion of 
			// our code
			
			if ((re1.test(splitString[i]) == true) && (inSurface == true)){
				
				// Get all the subValues from here
				// 1st - number 
				// 2nd - number
				// 3rd - index will be a unique way of referring to this DNA piece
				//     - should it always be a number? I'll ask Mark how he wants to handle this
				// 4th - species - probably a string describing it 
				
				// 1st & 2nd are the only really important ones now, 3rd & 4th can wait. 
				SubVals = splitString[i].split(',');
				
				// call our DNA placement method 
				// 
				// generateDNA(SubVals[0], SubVals[1], SubVals[2], SubVals[3]); /// Not Written Yet 
				// 
				continue;
			}
			
			split_val = "End Surface".length;
			if (splitString[i].substr(0,split_val) == "End Surface"){
				inSurface = false;
				continue;
			}

			split_val = "Begin Trace".length;
			if (splitString[i].substr(0,split_val) == "Begin Trace"){
				inTrace = true;
				continue;
			}
			
			split_val = "Begin Spider".length;
			if (splitString[i].substr(0,split_val) == "Begin Spider"){
				inSpider = true;
				continue;
			}
			
			split_val = "End Spider".length;
			if ((splitString[i].substr(0,split_val) == "End Spider") && (inSpider == true)){
				inSpider = false;
				continue;
			}
			
			if ((re2.test(splitString[i]) == true) && (inSpider == true)){
				
				SubVals = splitString[i].split(',');
				// Make our spider with the different components of this line
				// generateSpider(SubVals[0], SubVals[1], SubVals[2]); /// Not Written Yet
				continue;
			}
			
			
			split_val = "Body Move".length;	
			if (splitString[i].substr(0,split_val) == "Body Move"){
				inMove = true;
				continue;
			}
			
			split_val = "Spider Detach".length;
			if ((splitString[i].substr(0,split_val) == "Spider Detach") && (inMove == true) && (inTrace == true)){
				inMove = false;
				continue;
			}
			
			split_val = "End Trace".length;
			if((splitString[i].substr(0, split_val) == "End Trace") && (inTrace == true))
			{
				inTrace = false;
				continue;
			}
			
			split_val = "LegAttach".length;
			if((re3.test(splitString[1]) == true) && (inTrace == true) && (inMove == true)){
			
				SubVals = splitString[i].split(',');
				/// Call spider leg attach method
				/// legAttach(SubVals[0], SubVals[1], SubVals[2]); /// Not Written Yet
				continue;
			}
			
			// Trace what we have left to handle
			trace(splitString[i]);
			
		}
		
		
		fileStream.close();
	
}


 }
}