#!/usr/bin/env python

import os
import threading
import tempfile
import time

class PanelDesignManagerClient:
	
	CUSTOM_FILE="99_custom_panel_conf.setting"
	DCONF_DB_PATH="/etc/dconf/db/lliurex.d/"
	DCONF_DB_FILE=DCONF_DB_PATH+CUSTOM_FILE
	
	DOCK_SKEL="\
[org/mate/desktop/session/required-components]\n\
dock='%s'\n\
windowmanager='marco'\n\
filemanager='caja'\n\n"
	
	def __init__(self):
		
		pass
		
	#def init


	def startup(self,options):
		
		t = threading.Thread(target=self._startup)
		t.daemon = True
		t.start()
		
	#def startup


	def _startup(self):
		
		try:
			
			if objects.has_key("VariablesManager"):
				objects["VariablesManager"].register_trigger("PANELDESIGNMANAGER","PanelDesignManagerClient",self.design_trigger)
			
			self.get_value_and_execute()
			
		except Exception as e:
			print str(e)
			
	#def _startup
	

	def get_value_and_execute(self):

		# Making sure we're able to read PANELDESIGNMANAGER var from server
		tries=10
		var=None
		for x in range(0,tries):
			var=objects["VariablesManager"].get_variable("PANELDESIGNMANAGER")
			
			if var != None:
				self.design_trigger(var)
				break
			else:
				time.sleep(1)
				
	#def get_value
	

	def design_trigger(self,data):
		
		if data["status"] and data["replicate"]:
			self._write_dconf_file(data)
		else:
			self._delete_dconf_file()

	#def design_trigger
	
	
	def _write_dconf_file(self,data):
		content=data["dconf"]
		dock=""
		if data["plank"]:
			dock="plank"
		content+=PanelDesignManagerClient.DOCK_SKEL%(dock)
		
		if os.path.exists(PanelDesignManagerClient.DCONF_DB_FILE):
			f=open(PanelDesignManagerClient.DCONF_DB_FILE)
			lines=f.readlines()
			f.close()
			current_content="".join(lines)
			if current_content==content:
				return True
			else:
				self._delete_dconf_file()
		
		f=open(PanelDesignManagerClient.DCONF_DB_FILE,"w")
		f.write(content)
		f.close()
		
		os.system("dconf update")
		
	#def _write_dconf_file


	def _delete_dconf_file(self):
		
		if os.path.exists(PanelDesignManagerClient.DCONF_DB_FILE):
			os.remove(PanelDesignManagerClient.DCONF_DB_FILE)
			os.system("dconf update")
			
		
	#def _delete_dconf_file