#!/usr/bin/env python
# -*- mode: python; coding: utf-8; -*-
# ---------------------------------------------------------------------------##
#
#  Copyright (C) 1998-2003 Markus Franz Xaver Johannes Oberhumer
#  Copyright (C) 2003 Mt. Hood Playing Card Co.
#  Copyright (C) 2005-2009 Skomoroh
#
#  This program 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.
#
#  This program 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, see <http://www.gnu.org/licenses/>.
#
# ---------------------------------------------------------------------------##

import gettext
import locale
import os
import subprocess
import sys

try:
    import jnius
except ImportError:
    jnius = None

import pysollib.settings

# ************************************************************************
# * init
# ************************************************************************


def init():

    if 'LANG' not in os.environ:
        if os.name == 'nt':
            lang_tuple = locale.getlocale()
            lang = lang_tuple[0] if lang_tuple and lang_tuple[0] else 'en_US'
            os.environ['LANG'] = lang
        elif jnius:  # android
            Locale = jnius.autoclass('java.util.Locale')
            os.environ['LANG'] = Locale.getDefault().getLanguage()
    locale.setlocale(locale.LC_ALL, '')

    # install gettext
    locale_locations = (
        # locale/ next to the pysol.py script
        sys.path[0],
        # locale/ next to library.zip (py2exe)
        os.path.dirname(sys.path[0]),
        # locale/ in curdir (works for e.g. py2app)
        os.curdir)
    # leaving the domain unbound means sys.prefix+'/share/locale'

    for par in locale_locations:
        locale_dir = os.path.join(par, 'locale')
        if os.path.isdir(locale_dir):
            gettext.bindtextdomain('pysol', locale_dir)
            break

    gettext.textdomain('pysol')

    # debug
    if 'PYSOL_CHECK_GAMES' in os.environ or 'PYSOL_DEBUG' in os.environ:
        pysollib.settings.CHECK_GAMES = True
        print('PySol debugging: set CHECK_GAMES to True')
    if 'PYSOL_DEBUG' in os.environ:
        try:
            pysollib.settings.DEBUG = int(os.environ['PYSOL_DEBUG'])
        except Exception:
            pysollib.settings.DEBUG = 1
        print(('PySol debugging: set DEBUG to', pysollib.settings.DEBUG))

    if '--version' in sys.argv:
        print("PySol FC version {}".format(pysollib.settings.VERSION))
        sys.exit(0)

    # init toolkit
    if '--gtk' in sys.argv:
        pysollib.settings.TOOLKIT = 'gtk'
        sys.argv.remove('--gtk')
    elif '--tk' in sys.argv:
        pysollib.settings.TOOLKIT = 'tk'
        pysollib.settings.USE_TILE = False
        sys.argv.remove('--tk')
    elif '--tile' in sys.argv:
        pysollib.settings.TOOLKIT = 'tk'
        pysollib.settings.USE_TILE = True
        sys.argv.remove('--tile')
    elif '--kivy' in sys.argv:
        pysollib.settings.TOOLKIT = 'kivy'
        pysollib.settings.USE_TILE = False
        pysollib.settings.SELECT_GAME_MENU = False
        sys.argv.remove('--kivy')

    if pysollib.settings.TOOLKIT == 'tk':
        import tkinter
        root = tkinter.Tk(className=pysollib.settings.TITLE)
        root.withdraw()
        if tkinter.TkVersion < 8.4:
            # we need unicode support
            sys.exit("%s needs Tcl/Tk 8.4 or better (you have %s)" %
                     (pysollib.settings.TITLE, str(tkinter.TkVersion)))
        pysollib.settings.WIN_SYSTEM = root.tk.call('tk', 'windowingsystem')
        #
        if pysollib.settings.USE_TILE == 'auto':
            # check Tile
            pysollib.settings.USE_TILE = False
            try:
                root.tk.eval('package require tile 0.7.8')
            except tkinter.TclError:
                pass
            else:
                pysollib.settings.USE_TILE = True
        # "can't invoke event <<ThemeChanged>>: application has been destroyed"
        root.destroy()
        tkinter._default_root = None

    # check FreeCell-Solver
    pysollib.settings.USE_FREECELL_SOLVER = False
    if os.name == 'nt':
        if sys.path[0] and not os.path.isdir(sys.path[0]):  # i.e. library.zip
            d = os.path.dirname(sys.path[0])
            os.chdir(d)                 # for read presets
            fcs_command = os.path.join(
                'freecell-solver', 'bin', 'fc-solve.exe')
            pysollib.settings.FCS_COMMAND = fcs_command
            f = os.path.join('freecell-solver', 'presetrc')
            os.environ['FREECELL_SOLVER_PRESETRC'] = f
    if os.name in ('posix', 'nt'):
        try:
            try:
                import freecell_solver
                fc_solve_lib_obj = freecell_solver.FreecellSolver()
                assert fc_solve_lib_obj
                pysollib.settings.USE_FREECELL_SOLVER = True
            except Exception:
                pass
            if not pysollib.settings.USE_FREECELL_SOLVER:
                kw = {'shell': True,
                      'stdout': subprocess.PIPE,
                      'stderr': subprocess.PIPE,
                      'stdin': subprocess.PIPE, }
                if os.name != 'nt':
                    kw['close_fds'] = True
                p = subprocess.Popen(
                    pysollib.settings.FCS_COMMAND+' --help', **kw)
                p.stdin.close()
                line = p.stdout.readline()
                if sys.version_info >= (3,):
                    line = line.decode("utf-8")
                if line.startswith('fc-solve'):
                    pysollib.settings.USE_FREECELL_SOLVER = True
                if os.name == 'posix':
                    os.wait()               # kill zombi
        except Exception:
            # traceback.print_exc()
            pass
    os.environ['FREECELL_SOLVER_QUIET'] = '1'

    # run app without games menus (more fast start)
    if '--no-games-menu' in sys.argv:
        sys.argv.remove('--no-games-menu')
        pysollib.settings.SELECT_GAME_MENU = False
