#-*- coding: utf-8 -*-

# Copyright 2010 Mir Calculate Ltd. http://www.calculate-linux.org
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
from cl_install import cl_install, InstallError, __app__, __version__
from cl_opt import opt
from cl_share_cmd import share_cmd
import sys

from cl_lang import lang
lang().setLanguage(sys.modules[__name__])

DESCRIPTION = _("Utility for installation and configuration of Calculate Linux")
CMD_OPTIONS = [{'shortOption':"T",
                'longOption':"template",
                'optVal':"TEMPLATE", 'help':_("process template")
               },
               {'shortOption':"l",
                'longOption':"lang",
                'optVal':"LANG",
                'help':_("set language")
               },
               {'shortOption':"d",
                'longOption':"disk",
                'optVal':"DISK",
                'help':_("the disk for installation")
               },
               {'shortOption':"s",
                'longOption':"os",
                'optVal':"SYSTEM",
                'type':'choice',
                'choices':['cld','cds','cls','css','cldg','cldx'],
                'help':_("select operation system")
               },
               {'shortOption':"b",
                'longOption':"build",
                'help':_("installation for assembling")
               }]

class install_cmd(cl_install,opt,share_cmd):
    """Class for work with cl_install by console"""
    def __init__(self):
        opt.__init__(self,
            package=__app__,
            version=__version__,
            description=DESCRIPTION,
            option_list= CMD_OPTIONS + opt.variable_control +
                        opt.color_control,
            check_values=self.checkOpts)
        cl_install.__init__(self)

    def checkOpts(self, values, args):
        """Check values all specified options."""
        if len(args) > 0:
            self.error(_("unrecognized option") + ": %s"% "".join(args))
        if values.T is None and \
           values.vars is None and \
           values.d is None:
            self.error(_("need specify disk by '-d' option"))
        if values.s:
            choices = ['cld','cds','cls','css','cldg','cldx']
            if not values.s.lower() in choices:
                choices = ", ".join(map(repr, choices))
                self.error(
                    _("option %s: invalid choice: %r (choose from %s)")
                        % (opt, values.s, choices))
        if values.b:
            self.error(_("builder mode yet hasn`t supported"))
        if not values.T in [None,"all"]:
            self.error(
                _("defenition of a particular template yet is not supported"))
        # check syntax --set
        self.checkVarSyntax(values)
        return (values, args)

    def setLang(self,lang):
        """Process set locales by lang"""
        if self.setAllLocaleByLang(lang):
            return True
        else:
            self.printERROR(_("specified lang %s is unsupported")%lang)
            return False

    def setVars(self,options):
        """Process setting values for variables"""
        if options.set:
            for vals in options.set:
                for val in vals.split(','):
                    k,o,v = val.partition('=')
                    if self.clVars.exists(k):
                        if not self.clVars.SetWriteVar(k,v):
                            return False
                    else:
                        self.printERROR(_('variable %s not found')%k)
                        return False
        if options.d:
            if not options.d in self.clVars.Get('os_disk_dev'):
                self.error(_("Wrong target drive name %s"%options.d))
            else:
                osdiskload = filter(lambda x: x[1] and x[0] == options.d,
                        zip(self.clVars.Get('os_disk_dev'),
                            self.clVars.Get('os_disk_load')))
                if len(osdiskload) > 0:
                    self.error(
                        _("Specified drive '%s' mounted to '%s' on loaded system"%
                                (options.d,osdiskload[0][1])))
                else:
                    self.clVars.Set('os_root_dev',options.d,True)
        if options.s:
            self.old_os_linux_name = self.clVars.Get('os_linux_shortname')
            self.old_os_linux_ver = self.clVars.Get('os_linux_ver')
            self.clVars.Set('os_linux_shortname',options.s.upper(),True)
        return True

    def displayVars(self,vars):
        """Process displaying variables"""
        terms = vars.split(",")
        # if value of vars is "all" print all variables
        if terms == ["all"]:
            self.clVars.printVars()
        # print only specified variables
        else:
            self.clVars.printVars(terms)

    def templateSelect(self,template):
        """Process template appling"""
        if self.applyTemplatesForSystem():
            return True
        else:
            return False

    def installSystem(self):
        if cl_install.installSystem(self,buildermode=self.values.b):
            print "installation complete"
            return True
        else:
            return False