#!/usr/bin/env python

import cgi
import sys
import stitchcode
import time
import hashlib

pixels_per_millimeter = 10

def main():
	
	data = cgi.FieldStorage();	
	xarr = data.getlist("x[]")
	yarr = data.getlist("y[]")
	jarr = data.getlist("j[]")	
	
	if len(xarr) == len(yarr) == len(jarr) and len(xarr) > 1:
		emb = stitchcode.Embroidery()

		lx = -99999999
		ly = -99999999
		
		fid = str(int(time.time() * 1000))
		#sys.stderr.write(hashlib.sha1(str(time.time())).hexdigest())
			
		for i in range(0, len(xarr)):
			x = float(xarr[i])
			y = float(yarr[i])*-1;
			if jarr[i] == "true":
				j = True
			else:
				j = False
				
			if not(x == lx and y == ly):
				emb.addStitch(stitchcode.Point(x,y,j))
			lx = x
			ly = y
			
		emb.translate_to_origin()	
		emb.flatten()
		emb.scale(27.80/pixels_per_millimeter)
		emb.add_endstitches_to_jumps(10)
		#emb.to_triple_stitches()	
		emb.save_as_png("files/%s.png" % fid,True)
		emb.save_as_exp("files/%s.exp" % fid)
		
		print "Content-Disposition: attachment; filename=%s.exp" % fid	
		print "Content-Type: application/octet-stream\n"
		print emb.export_melco()
	
	else:
		print "Content-Type: text/html\n"		
		print "Error: no points or incomplete data request"

main()