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

# Copyright 2010 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.

__version__ = "2.2.0.1"
__app__ = "calculate-assemble"

import os
import re
import sys
import traceback
from os import path
from cl_template import template
from cl_utils import process,pathJoin,getRunCommands,getTupleVersion
from subprocess import STDOUT,PIPE
from cl_print import color_print
from cl_datavars import DataVars
from cl_distr import IsoDistributive, DirectoryDistributive, \
                    DistributiveError
from cl_vars_share import varsShare

from cl_lang import lang
from server.utils import dialogYesNo
import cl_overriding

class printNoColor:
    def colorPrint(self,attr,fg,bg,string):
        sys.stdout.write(string)

class AssembleError(Exception):
    """Installation Error"""
    assemble_errors = ""

    def installExit(self,*args,**kwars):
        raise AssembleError(self.__class__.assemble_errors)

    def overprintERROR(self,error):
        self.__class__.assemble_errors += str(error) + "\n"

    def getAssembleErrors(self):
        return self.__class__.assemble_errors

    def popAssembleErrors(self):
        res = self.__class__.assemble_errors
        self.__class__.assemble_errors = ""
        return res

    def getOverrideMethods(self):
        return self.installExit, self.overprintERROR

cl_overriding.exit, cl_overriding.printERROR = \
    AssembleError().getOverrideMethods()

class DataVarsAssemble(DataVars):
    """Variable class for assemble"""

    def importAssemble(self, **args):
        '''Get variables for assemble'''
        # section name in calculate.env
        envSection = "assemble"
        # import assemble variables
        self.importData(envSection, ('cl_vars_assemble','cl_fill_assemble'))

class cl_assemble(color_print):
    """Primary class for assemble actions"""

    def __init__(self):
        self.clVars = None
        self.startMessage = ""
        self.lenStartMessage = 0
        self.clTempl = None
        self.force = False

    def setNoColor(self):
        self.color = False

    def initVars(self):
        """Primary initialization of variables"""
        self.clVars = DataVarsAssemble()
        self.clVars.importAssemble()
        self.clVars.flIniFile()

    def applyTemplatesForSquash(self,directory):
        """Apply templates for root of system."""
        #self.clVars.Set("cl_root_path","/", True)
        self.clVars.Set("cl_action","squash", True)
        self.clVars.Set("cl_chroot_path",directory, True)
        self.clTempl = template(self.clVars)
        dirsFiles = self.clTempl.applyTemplates()
        self.clTempl.closeFiles()
        if self.clTempl.getError():
            raise AssembleError(self.clTempl.getError())
        else:
            return dirsFiles

    def printMessageForTest(self, message, lenMsg=False):
        """Print waiting message and OK or Error by func result"""
        message = "%s ..." % message
        self.printSUCCESS(message,printBR=False)
        self.startMessage = message
        if lenMsg:
            self.lenStartMessage = lenMsg
        else:
            self.lenStartMessage = self.lenString(self.startMessage)

    def printOnlyNotOK(self, string, offsetL=0, printBR=True):
        """Вывод на печать в случае сбоя"""
        self._printSysOut = sys.stdout
        self.printLine((('', string),),
                       (('blueBr','['),
                        ('redBr',' !! '),
                        ('blueBr',']'),
                       ), offsetL, printBR)

    def printByResult(self,result,failMessage=None):
        if self.startMessage:
            offset = 3
            if result:
                self.printOnlyOK(" ", self.lenStartMessage + offset)
            else:
                self.printOnlyNotOK(" ", self.lenStartMessage + offset)
                if failMessage:
                    self.printERROR(failMessage)
            self.startMessage = ""
            self.lenStartMessage = 0

    def make(self,logicFunc,*argv):
        """Make iso image by variables"""
        self.sourceDistr = None
        self.targetDistr = None
        error = None
        try:
            if not logicFunc(*argv):
                return False
        except (EOFError), e:
            error = e
        except (AssembleError,DistributiveError),e:
            error = e
        except (Exception),e:
            error = ""
            for i in apply(traceback.format_exception, sys.exc_info()):
                error += i
        except KeyboardInterrupt,e:
            self.printByResult(False)
            self.printWARNING("Interrupting the system assembling")
            error = _("System assembling manually interrupt")
        if error:
            self.printByResult(False)
        try:
            if self.clTempl:
                self.clTempl.closeFiles()
            if self.sourceDistr:
                self.printMessageForTest(_("Releasing source data"))
                self.sourceDistr.close()
                self.printByResult(True)
            if self.targetDistr:
                self.printMessageForTest(_("Unmount assembling volume"))
                self.targetDistr.close()
                self.printByResult(True)
        except (AssembleError,DistributiveError),e:
            error = "%s\n%s" % (str(error),_("Unmounting error"))
        except KeyboardInterrupt,e:
            pass
        if error:
            self.printByResult(False)
        if error:
            for line in filter(lambda x: x,str(error).split('\n')):
                self.printERROR(line)
            self.printERROR(_("System assembling failed"))
            return False
        self.printSUCCESS(_("System was have assembled successfully"))
        return True