import os
import re
import lxml.etree

import net.Lliurex.JClic.Library
import net.Lliurex.Base

import locale
import gettext

locale.textdomain("lliurex-recursos")
gettext.textdomain("lliurex-recursos")
_=gettext.gettext 


class Settings(net.Lliurex.Base.Base):
	conf_file=".edu.xtec.properties"
	lib_conf_file=".lliurex-recursos.conf"
	
	jclics = []
	
	
	
	def __init__(self):
		self.info("Settings.__init__")
		
		self.is_configured = False
		self.is_lib_configured = False
		self.path = ""
		self.libraries=[]
		
		self.lib_path=None
		self.must_save = False
		
		
		
	def look_up_settings(self):
		user_home = os.environ["HOME"]
		if os.path.exists(user_home + os.sep + Settings.conf_file):
			self.is_configured = True
			
			file = open(user_home + os.sep + Settings.conf_file)
			
			for line in file:
				match=re.match("JClic=.*$",line)
				if not match==None:
					tmp=line.split("=")
					self.path=tmp[1].rstrip('\n')
					
					self.info(("JClic path:") +  tmp[1])
					break
		
		
	def read_settings(self):
		if not self.is_configured:
			return

		if not os.path.exists(self.path + os.sep + "jclic.cfg"):
			self.is_configured = False
			return
			
			
		document = lxml.etree.parse(self.path + os.sep + "jclic.cfg")
		root = document.getroot()
		
		for node in root:
			if node.tag=="libraryManager":
				for pnode in node:
					if pnode.tag=="library":
						name = pnode.get("name")
						path = pnode.get("path")
						
						self.info(("Library" ) +" " + name+ "->"+path) 
						library = net.Lliurex.JClic.Library.Library(name,path)
						library.load()
						self.libraries.append(library)
						
		

	def read_lib_config(self):
		user_home = os.environ["HOME"]
		
		if os.path.exists(user_home + os.sep + Settings.lib_conf_file):
			f = open(user_home + os.sep + Settings.lib_conf_file)
			for line in f.readlines():
				tmp = line.split("=")
				#this may ensure a tuple 'variable'='value' has been found
				if len(tmp)==2:
					if tmp[0]=="lib_path":
						self.lib_path = tmp[1]
						self.is_lib_configured=True
						
						self.info("lib_path"+tmp[1])
					
			
			f.close()
			
	def get_current_installed(self):
		tmp = self.lib_path.split(".")
		
		for lib in self.libraries:
			if lib.name==tmp[0]:
				for current in lib.get_current_installed(tmp[1]):
					self.jclics.append(current)
				
				

	def sync_dir(self):
		tmp = self.lib_path.split(".")
		
		for lib in self.libraries:
			if lib.name==tmp[0]:
				lib.sync_dir(tmp[1])

	def get_is_configured(self):
		return self.is_configured
		
	def get_is_lib_configured(self):
		return self.is_lib_configured
		
	def get_path(self):
		return self.path	
		
		
	def get_libraries(self):
		return self.libraries

	def set_lib_path(self,path):
		self.must_save = True
		self.lib_path=path
		self.is_lib_configured = True
		
		
		
	def save_lib_settings(self):
		if self.must_save:
			user_home = os.environ["HOME"]
			f = open(user_home + os.sep + Settings.lib_conf_file,"w")
			f.writelines("lib_path="+self.lib_path)
			f.close()