"""
Copyright 2008, 2009 Free Software Foundation, Inc.
This file is part of GNU Radio

GNU Radio Companion 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 2
of the License, or (at your option) any later version.

GNU Radio Companion 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
"""

from __future__ import absolute_import, print_function

import os
import sys

from ..core.Platform import Platform as CorePlatform

from .Config import Config
from .Block import Block
from .Connection import Connection
from .FlowGraph import FlowGraph
from .Param import Param
from .Port import Port


class Platform(CorePlatform):

    def __init__(self, *args, **kwargs):
        CorePlatform.__init__(self, *args, **kwargs)

        # Ensure conf directories
        gui_prefs_file = self.config.gui_prefs_file
        if not os.path.exists(os.path.dirname(gui_prefs_file)):
            os.mkdir(os.path.dirname(gui_prefs_file))

        self._move_old_pref_file()

    def get_prefs_file(self):
        return self.config.gui_prefs_file

    def _move_old_pref_file(self):
        gui_prefs_file = self.config.gui_prefs_file
        old_gui_prefs_file = os.environ.get(
            'GRC_PREFS_PATH', os.path.expanduser('~/.grc'))
        if gui_prefs_file == old_gui_prefs_file:
            return  # prefs file overridden with env var
        if os.path.exists(old_gui_prefs_file) and not os.path.exists(gui_prefs_file):
            try:
                import shutil
                shutil.move(old_gui_prefs_file, gui_prefs_file)
            except Exception as e:
                print(e, file=sys.stderr)

    ##############################################
    # Factories
    ##############################################
    Config = Config
    FlowGraph = FlowGraph
    Connection = Connection
    block_classes = {key: Block.make_cls_with_base(cls)
                     for key, cls in CorePlatform.block_classes.items()}
    port_classes = {key: Port.make_cls_with_base(cls)
                    for key, cls in CorePlatform.port_classes.items()}
    param_classes = {key: Param.make_cls_with_base(cls)
                     for key, cls in CorePlatform.param_classes.items()}