import java.util.GregorianCalendar;

/*
 * Pehr Hovey
 * MAT259 Project 1  Winter 2009
 * 
 * Graph Checkout duration, collection code and time in 2D
 * 
 * Transaction.java - represent one library transaction. 
 * Store only fields needed for this visualization
 * 
 * Based on course code from Angus
 * 
 */
public class Transaction {
	
	  String itemNumber; //Unique identifier
	  String ckodate;
	  String ckotime;
	  String ckidate;
	  String ckitime;
	  String collcode;
	  String itemtype;
	  String title;
	  long ckoduration; //this field is calculated from check-in, check-out date/time
	  long ckitimestamp;
	  
	  //Plot-related info that will be mutated as data is sorted, etc
	  float x,x_b,y; //x_b is different x for when buttons are shown
	  float x_equal, x_b_equal;
	  float duration_height_lin; //height of duration rect in log and linear scale
	  float duration_height_log;
	  String label; //what is the x-label for the current view?
	  boolean on_boundary; //if sorting twice, does this trans appear on a boundary between chunks?
	 
	  public Transaction(){
		  x=0;
		  x_b = 0;
		  x_equal = 0;
		  x_b_equal = 0;
		  y=0;
		  duration_height_log=0;
		  duration_height_lin=0;
		  on_boundary=false;
	  }
	  
	 public Transaction(Transaction t){ //make a copy. Do it the long way to try to get a deep copy
		 x_equal = t.x_equal;
		 x_b_equal = t.x_b_equal;
		 x_b = t.x_b;
		 x = t.x;
		 y = t.y;
		 duration_height_lin = t.duration_height_lin;
		 duration_height_log = t.duration_height_log;
		 on_boundary = t.on_boundary;
		 itemNumber = t.itemNumber;
		 ckodate = t.ckodate;
		 ckotime = t.ckotime;
		 ckidate = t.ckidate;
		 ckitime = t.ckitime;
		 collcode = t.collcode;
		 itemtype = t.itemtype;
		 title = t.title;
		 ckoduration = t.ckoduration;
		 ckitimestamp = t.ckitimestamp;
		 label = t.label;
	 }
	  
	  public String toString()
	  { 
	    String str = "";

	    //str += "\"" + title + "\" checked out at " + ckotime + " on " + ckodate + " then checked in at " + ckitime + " on " + ckidate;  
	   str+=itemNumber+" "+ckodate+" "+ckotime+" "+ckidate+" "+ckitime+" "+collcode+" "+itemtype+" "+title+" cko_duration: "+ckoduration;
	    return str;
	  }
	  
	  public void calculateDuration(){ //calc checkout duration and store in this obj
		  //GregorianCalendar(int year, int month, int dayOfMonth, int hourOfDay, int minute, int second) 
		  java.util.GregorianCalendar checkin = TransactionUtils.getGCFromString(ckidate, ckitime);
		  java.util.GregorianCalendar checkout = TransactionUtils.getGCFromString(ckodate, ckotime);
		  ckoduration  = TransactionUtils.getTimeDifferenceInMillis(checkout, checkin);
		  
	  }
	  
	  public void calculateTimeStamp(){ //this makes it easier to sort by check in time
		  java.util.GregorianCalendar checkin = TransactionUtils.getGCFromString(ckidate, ckitime);
		  ckitimestamp = checkin.getTimeInMillis();
	  }

	


}