##    Fonty Python Copyright (C) 2006, 2007, 2008 Donn.C.Ingle
##    Contact: donn.ingle@gmail.com - I hope this email lasts.
##
##    This file is part of Fonty Python.
##    Fonty Python is free software: you can redistribute it and/or modify
##    it under the terms of the GNU General Public License as published by
##    the Free Software Foundation, either version 3 of the License, or
##    (at your option) any later version.
##
##    Fonty Python is distributed in the hope that it will be useful,
##    but WITHOUT ANY WARRANTY; without even the implied warranty of
##    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
##    GNU General Public License for more details.
##
##    You should have received a copy of the GNU General Public License
##    along with Fonty Python.  If not, see <http://www.gnu.org/licenses/>.

import os

class PathControl:
    """
    1. Makes the .fontypython path
    2. Provide paths for fontypython on Linux
    3. Provide list of pog names (without the .pog extension)
    4. Provide a list of pog FILE names (with .pog extension)
    
    * All these vars contain/return BYTE STRING paths and files.
    """
    
    def __init__(self):
        ## __HOME will be a BYTE STRING
        self.__HOME = os.environ['HOME']
        
        self.__fphomepath = self.__HOME + "/.fontypython/" # byte string
        self.__fpconffile = self.__HOME + "/.fontypython/fp.conf" # byte string
        
        ## Is there a .fonts folder ?
        if not os.path.exists(self.__HOME + "/.fonts"):
            ## We gotta make it.
            try:
                os.mkdir(self.__HOME + "/.fonts")
            except:
                print _("""
Couldn't make the .fonts folder in %s
Please check your write permissions and try again.""") % self.__HOME
                raise SystemExit
        self.__userfontpath = self.__HOME + "/.fonts"
        
        ## Make ~/.fontypython
        if not os.path.exists(self.__fphomepath):
            try:
                os.makedirs(self.__fphomepath) #using makedirs - just in case.
            except:
                print _("""
Couldn't make the folder in %s
Please check your write permissions and try again.""") % self.__fphomepath
                raise SystemExit
            
    def appPath(self): 
        """ Kind of spastic, but I was in a get/set mode"""
        return self.__fphomepath
        
    def appConf(self): 
        return self.__fpconffile
        
    def getPogNames(self): 
        ## We pass a byte string path to os.listdir therefore this function
        ## return a LIST OF BYTE STRINGS.
        return [ f[0:-4] for f in os.listdir(self.__fphomepath) if f.endswith(".pog") ]

    def userFontPath(self): 
        return self.__userfontpath
        
    def home(self) : 
        return self.__HOME