#!/Python27/python.exe
#/usr/bin/python

import downloader
import filenamer
import inventnamer
import fieldstorager

print "Content-Type: text/html"
print
print ""

nametag = "imDither"

MAIN_DIRECTORY = ""
#BIN_CONVERT = "/usr/bin/convert"
#BIN_IDENTIFY = "/usr/bin/identify"
#BIN_COMPOSITE = "/usr/bin/composite"
BIN_CONVERT = "convert"
BIN_IDENTIFY = "identify"
BIN_COMPOSITE = "composite"

PARAM_LIST = "theurl, thedither, username, format"

form = cgi.FieldStorage()
newvalues = fieldstorager.fieldstorage(PARAM_LIST, form)
thekeys = PARAM_LIST.split()
for key in thekeys:
  globals()[key] = newvalues[key]

if username == None:
	username = ""

format = format
if format == None:
	format = "png"	

class Dither():
	def file_size (self, file)
		return os.stat(file)[6]
	def identify(self, thefile):
		ident = Popen([BIN_IDENTIFY, thefile], stdout=PIPE).communicate()[0]
		partz = ident.split(" ")
		self.dimensions = partz[2].split("x")
	def makeCanvas(self, dimensions, thefile):
		os.system(BIN_CONVERT+" "-size "+self.dimensions[0]+"x"+self.dimensions[1]+" canvas:transparent"+thefile)
	def makeMask(self, themask, thedither, thebackground):
		os.system(BIN_CONVERT+"  -tile "+thedither+"   "+thebackground+"  "+themask)
		os.system("rm "+thebackground)
	def fuseMask(self, themask, theimage):
		os.system(BIN_CONVERT+" "+themask+" null: "+theimage+" -matte -compose DstIn -layers composite "+theimage)
		os.system("rm "+themask)
	def init(self, theurl, thedither, username):
		self.mainfile = filenamer.filename(theurl, "imDither", username)
		filepaths = hexdirer.hexdir
		self.privatepath = filepaths[0]
		self.publicpath = filepaths[1]
		downloader.download(theurl, self.mainfile, self.privatepath)
		self.canvasfile = inventnamer.inventname("png", "canvasfile")
		self.dimensions = self.identify(self.mainfile)
		self.makeCanvas(self.dimensions, self.canvasfile)
		self.theMask = inventnamer.inventname("png", "maskfile")
		self.makeMask(self.theMask, thedither, self.canvasfile)
		self.fuseMask(self.theMask, self.mainfile)
		#self.mainfile = self.mainfile.replace(, do something with s3)
		print self.mainfile
		print self.file_size(self.mainfile)
		print 'width: '+self.dimensions[0]+'px'
		print 'height: '+self.dimensions[1]+'px'
daddy = Dither(theurl, thedither, username)