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# Copyright (C) 2014 Red Hat, Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# The views and conclusions contained in the software and documentation are
# those of the authors and should not be interpreted as representing official
# policies, either expressed or implied, of the FreeBSD Project.
#
# Authors: Vitezslav Crhonek <vcrhonek@redhat.com>
#
"""
System locale management.

Usage:
    %(cmd)s show [(--locale | --vc-keyboard | --x11-keymap)]
    %(cmd)s set-locale (<locale> <value>) ...
    %(cmd)s set-vc-keyboard [--convert] <keymap> [<keymap-toggle>]
    %(cmd)s set-x11-keymap [--convert] <layouts> [<model> <variant> <options>]

Commands:
    show              Show detailed information about system locale
                      cathegory (locale variables, key mapping on the
                      virtual console, default key mapping of
                      the X11 server).
                      If no cathegory is provided via option, all
                      locale information is displayed.

    set-locale        Set locale variables.

    set-vc-keyboard   Set the key mapping on the virtual console.

    set-x11-keymap    Set the default key mapping of the X11 server.

Show options:
    --locale          Display locale variables.
    --vc-keyboard     Display key mapping on the virtual console.
    --x11-keymap      Display default key mapping of the X11 server.

Set options:
    --convert         Try to set the nearest console keyboard/X11 keyboard
                      setting for the chosen X11 keyboard/console keyboard
                      setting.
"""

from lmi.scripts import locale as loc
from lmi.scripts.common import command

class Show(command.LmiShowInstance):
    DYNAMIC_PROPERTIES = True
    columns = {
        'all': ('Lang', 'LCCType', 'LCNumeric', 'LCTime', 'LCCollate',
                'LCMonetary', 'LCMessages', 'LCPaper', 'LCName', 'LCAddress',
                'LCTelephone', 'LCMeasurement', 'LCIdentification',
                'VConsoleKeymap', 'VConsoleKeymapToggle',
                'X11Layouts', 'X11Model', 'X11Variant', 'X11Options'
        ),
        'locale': ('Lang', 'LCCType', 'LCNumeric', 'LCTime', 'LCCollate',
                   'LCMonetary', 'LCMessages', 'LCPaper', 'LCName', 'LCAddress',
                   'LCTelephone', 'LCMeasurement', 'LCIdentification'
        ),
        'vc_keyboard': ('VConsoleKeymap', 'VConsoleKeymapToggle'),
        'x11_keymap': ('X11Layouts', 'X11Model', 'X11Variant', 'X11Options'),
    }

    def execute(self, ns, _locale, _vc_keyboard, _x11_keymap):
         cathegory = 'all'
         if _locale:
             cathegory = 'locale'
         elif _vc_keyboard:
             cathegory = 'vc_keyboard'
         elif _x11_keymap:
             cathegory = 'x11_keymap'
         return self.columns[cathegory], loc.get_locale(ns)

class SetLocale(command.LmiCheckResult):
    EXPECT = None

    def transform_options(self, options):
        """
        Rename 'locale' and 'value' options to 'locales' and 'values'  parameter
        name for better readability.
        """
        options['<locales>'] = options.pop('<locale>')
        options['<values>'] = options.pop('<value>')

    def execute(self, ns, locales, values):
        loc.set_locale(ns, locales, values)

class SetX11Keymap(command.LmiCheckResult):
    EXPECT = None

    def execute(self, ns, layouts, model, variant, options, _convert=False):
        if not model:
            model = ''
        if not variant:
            variant = ''
        if not options:
            options = ''
        loc.set_x11_keymap(ns, layouts, model, variant, options, _convert)

class SetVCKeyboard(command.LmiCheckResult):
    EXPECT = None

    def execute(self, ns, keymap, keymap_toggle, _convert=False):
        if not keymap_toggle:
            keymap_toggle = ''
        loc.set_vc_keyboard(ns, keymap, keymap_toggle, _convert)

Locale = command.register_subcommands(
        'Locale', __doc__,
        { 'show' : Show,
          'set-locale' : SetLocale,
          'set-x11-keymap' : SetX11Keymap,
          'set-vc-keyboard' : SetVCKeyboard,
        },
    )