#

# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description:

#

## 

# @author Teemu Rytkonen

import re

import logging

import simplejson

""" cone specific imports """

from cone.public import persistence, exceptions, api, utils, container

from cone.carbon import model

MODEL                    = model

def dumps(obj, indent=True):

    """ Make sure that the object is mapped to an object in this model """

    mobj = obj._get_mapper('carbon').map_object(obj)

    writer = get_writer_for_class(mobj.__class__.__name__)

    dict = writer.dumps(mobj)

    # Return the data as dict, as it is urlencoded by client

    return dict

def loads(jsonstr):

    return CarbonReader().loads(jsonstr)

class ResourceListReader(persistence.ConeReader):

    """

    """ 

    def loads(self, jsonstr):

        """

        @param jsonstr: The json string to read. 

        """

        reslist = model.ResourceList()

        datadict = simplejson.loads(jsonstr)

        for configuration in datadict.get('configurations', []):

            reslist.add_resource(model.ConfigurationResource(**configuration))

        for featurelist in datadict.get('featurelists', []):

            reslist.add_resource(model.FeatureListResource(**featurelist))

        return reslist

class HasResourceReader(persistence.ConeReader):

    """

    """ 

    def loads(self, jsonstr):

        """

        @param jsonstr: The json string to read. 

        """

        try:

            datadict = simplejson.loads(jsonstr)

            return datadict.get('has_resource',False)

        except ValueError,e:

            logging.getLogger('cone').error("Failed to parser json from %s" % jsonstr)

            raise e

class CarbonWriter(persistence.ConeWriter):

    """

    """ 

    def dumps(self, obj):

        """

        @param obj: The object 

        """

        """ Make sure that the object is mapped to an object in this model """

        mobj = obj._get_mapper('carbon').map_object(obj)

        writer = get_writer_for_class(mobj.__class__.__name__)

        return writer.dumps(obj)

class CarbonReader(persistence.ConeReader):

    """

    """ 

    def loads(self, jsonstr):

        """

        @param xml: The xml which to read. reads only the first object. 

        """

        try:

            datadict = simplejson.loads(jsonstr)

            for key in datadict:

                reader = get_reader_for_elem(key)

                return reader.loads(datadict[key])

        except (SyntaxError, ValueError),e:

            utils.log_exception(logging.getLogger('cone'), "Json string parse raised exception: %s!" % (e))

            raise exceptions.ParseError("Json string %s parse raised exception: %s!" % (jsonstr,e))

class ConfigurationCreateWriter(CarbonWriter):

    @classmethod

    def supported_class(cls, classname):

        """

        Class method to determine if this CarbonWriter supports writing

        of the given class name

        """

        return False

    def dumps(self, obj):

        """

        @param obj: The Configuration object 

        """

        featurelists = []

        included = []

        # Remove the featurelists and configurations from the creation phase

#        resmapper = CarbonResourceMapper()

#        for confpath in obj.list_configurations():

#            config = obj.get_configuration(confpath)

#            if config.meta and config.meta.get('type') == 'featurelist':

#                featurelists.append(resmapper.map_confml_resource('featurelist',confpath))

#            elif config.meta and config.meta.get('type'):

#                included.append(resmapper.map_confml_resource(config.meta.get('type'),confpath))

#            else:

#                # ignore configs that are not carbon configs

#                pass

        configuration_dict = {'name' : obj.name,

                              'parent_path' : '',

                              'included' : included,

                              'description' : obj.desc or 'Needs description',

                              'configuration_type' : 'carbon',

                              'resource_type' : 'configuration',

                              'feature_lists' : featurelists, 

                               }

        return configuration_dict

class ConfigurationWriter(CarbonWriter):

    @classmethod

    def supported_class(cls, classname):

        """

        Class method to determine if this CarbonWriter supports writing

        of the given class name

        """

        if classname=="CarbonConfiguration":

            return True

        else:

            return False

    def dumps(self, obj):

        if obj.meta:

            if obj.meta.get('type') == 'configurationroot':

                return self.dumps_root(obj)

            elif obj.meta.get('type') == 'configurationlayer':

                return self.dumps_layer(obj)

        raise Exception("Not supported CarbonConfigruration, %s" % obj)

    def dumps_root(self, obj):

        """

        @param obj: The Configuration object 

        """

        featurelists = []

        included = []

        resmapper = CarbonResourceMapper()

        for confpath in obj.list_configurations():

            config = obj.get_configuration(confpath)

            if config.meta:

                if config.meta.get('type') == 'featurelist':

                    featurelists.append(resmapper.map_confml_resource('featurelist',confpath))

                else:

                    included.append(resmapper.map_confml_resource(config.meta.get('type'),confpath))

            else:

                # This default case could also be identified as error

                included.append(confpath)

        configuration_dict = {'feature_lists': featurelists,

                             'parent_config': None, 

                             'configuration_name': obj.name, 

                             'version_identifier': obj.version_identifier, 

                             'included': included, 

                             'ref': obj.ref}

        return configuration_dict

    def dumps_layer(self, obj):

        """

        @param obj: The Configuration object 

        """

        configuration_dict = {'version_identifier': obj.version_identifier}

        datawriter = DataWriter()

        data = datawriter.dumps(obj)

        configuration_dict['data'] =  data

        return configuration_dict

class ConfigurationRootReader(CarbonReader):

    """

    """ 

    @classmethod

    def supported_elem(cls, elemname, parent=None):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given elem name

        """

        if elemname=="configurationroot":

            return True

        else:

            return False

    def __init__(self):

        pass

    def loads(self, dict):

        """

        @param obj: The Configuration object 

        """

        name = dict.get('configuration_name')

        path = name + ".confml"

        conf = model.CarbonConfiguration(dict.get('ref'), path=path, type='configurationroot')

        conf.name = name

        conf.version = dict.get('version_identifier')

        resmapper = CarbonResourceMapper()

        """ Read the featurelists as included configurations """

        for fealist in dict.get('feature_lists',[]):

            conf.include_configuration(resmapper.map_carbon_resource(fealist))

        """ Read the included configurations """

        for includedconfig in dict.get('included',[]):

            conf.include_configuration(resmapper.map_carbon_resource(includedconfig))

        return conf

class ConfigurationLayerReader(CarbonReader):

    """

    """ 

    @classmethod

    def supported_elem(cls, elemname, parent=None):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given elem name

        """

        if elemname=="configurationlayer":

            return True

        else:

            return False

    def __init__(self):

        pass

    def loads(self, dict):

        """

        @param obj: The Configuration object 

        """

        name = dict.get('configuration_name')

        conf = model.CarbonConfiguration(dict.get('ref'), path=path, type='configurationlayer')

        conf.name = name

        conf.version = dict.get('version_identifier')

        """ Last read the data of this configuration and add it as a configuration """

        data_reader = DataReader()

        datacont = data_reader.loads(dict.get('data', {}))

        return conf

class FeatureListCreateWriter(CarbonWriter):

    @classmethod

    def supported_class(cls, classname):

        """

        Feature list create writer is supported only explicitly

        """

        return False

    def dumps(self, obj):

        """

        @param obj: The FeatureList object 

        """

        """ Make sure that the object is mapped to an object in this model """

        mobj = obj._get_mapper('carbon').map_object(obj)

        featurelist_dict = {'type' : 'featurelist',

                            'flv_description' : mobj.desc or 'Needs description',

                            'version_identifier' : mobj.version_identifier

                            }

        if hasattr(mobj, 'responsible'):

            featurelist_dict['responsible'] = mobj.responsible

        return featurelist_dict

class FeatureListWriter(CarbonWriter):

    @classmethod

    def supported_class(cls, classname):

        """

        Feature list create writer is supported only explicitly

        """

        if classname == 'FeatureList':

            return True

        else:

            return False

    def dumps(self, obj):

        """

        @param obj: The FeatureList object 

        """

        featurelist_dict = {

                            'type' : 'featurelist',

                            'name' : obj.name,

                            'flv_description' : obj.desc or 'Needs description',

                            'path' : obj.path,

                            'features' : []

                            }

        if obj.meta.get('version_identifier'):

            featurelist_dict['version_identifier'] = obj.meta.get('version_identifier')

        # add all features of the featurelist

        for fearef in obj.list_features():

            feature = obj.get_feature(fearef)

            writer = FeatureWriter()

            feadict = writer.dumps(feature)

            featurelist_dict['features'].append(feadict)

        return featurelist_dict

class FeatureListReader(CarbonReader):

    """

    """ 

    @classmethod

    def supported_elem(cls, elemname, parent=None):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given elem name

        """

        if elemname=="featurelist":

            return True

        else:

            return False

    def __init__(self):

        pass

    def loads(self, dict):

        """

        @param obj: The Configuration object 

        """

        fealist_expanded            = dict.get('expanded')

        fealist_version             = dict.get('version_identifier')

        fealist_is_latest_version   = dict.get('is_latest_version')

        fealist_list_id             = dict.get('list_id')

        fealist_path                = dict.get('path')

        fealist_version_title       = dict.get('version_title')

        fealist_can_be_released     = dict.get('can_be_released')

        fealist_type                = dict.get('type')

        fealist_has_external_relations = dict.get('is_latest_version')

        # Create a configuration object from the featurelist

        conf = model.FeatureList(path='featurelists/'+fealist_version_title+'.confml')

        conf.meta.add('version_identifier', fealist_version)

        for feature in dict.get('features'):

            reader = FeatureReader()

            fea = reader.loads(feature)

            if fea != None:

                conf.add_feature(fea)

        for feafqr in conf.list_all_features():

            # Add empty data object to featurelist configuration

            conf.add_data(api.Data(fqr=feafqr))

        return conf

class FeatureWriter(CarbonWriter):

    CONFML_TO_CARBON_TYPE = {

                             'boolean'   : 'BOOLEAN',

                             'int'       : 'INTEGER',

                             'selection' : 'SELECTION',

                             'string'    : 'STRING',

                             None : None,

                             '' : ''

                             }

    @classmethod

    def supported_class(cls, classname):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given class name

        """

        if classname=="Feature" or\

            classname=="CarbonBooleanSetting" or\

            classname=="CarbonIntSetting" or\

            classname=="CarbonStringSetting" or\

            classname=="CarbonSelectSetting"or\

            classname=="CarbonSetting":

            return True

        else:

            return False

    def dumps(self, obj):

        """

        @param obj: The Feature object 

        """

        """ Make sure that the object is mapped to an object in this model """

        mobj = obj._get_mapper('carbon').map_object(obj)

        featuredict = {'type' : 'feature',

                       'status' : 'APPROVED',

                       'title' : mobj.name,

                       'ref' : mobj.ref,

                       'description' : mobj.desc or 'Needs description',

                       'responsible' : None,

                       'value_type' : self.CONFML_TO_CARBON_TYPE[mobj.type],

                       'children' : []}

        if featuredict['value_type'] != None:

        if mobj.type == 'selection':

            featuredict['options'] = mobj.options.keys() 

        writer = FeatureWriter()

        for fearef in mobj.list_features():

            feaobj = obj.get_feature(fearef)

            childdict = writer.dumps(feaobj)

            featuredict['children'].append(childdict)

        return featuredict

class FeatureReader(CarbonReader):

    """

    """ 

    @classmethod

    def supported_elem(cls, elemname, parent=None):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given elem name

        """

        if elemname=="features":

            return True

        else:

            return False

    def __init__(self):

        pass

    def loads(self, dict):

        """

        @param obj: The Configuration object 

        """

        id = dict.get('id')

        name = dict.get('title')

        ref = dict.get('ref')

        ref = utils.resourceref.to_objref(ref)

        status = dict.get('status')

        value_type = dict.get('value_type')

        description = dict.get('description')

        if value_type == 'boolean':

            fea = model.CarbonBooleanSetting(ref, type=value_type)

        elif value_type == 'integer':

            fea = model.CarbonIntSetting(ref, type=value_type)

        elif value_type == 'string':

            fea = model.CarbonStringSetting(ref, type=value_type)

        elif value_type == 'selection':

            fea = model.CarbonSelectionSetting(ref, type=value_type)

        elif value_type == '':

            fea = model.CarbonFeature(ref, type=value_type)

        else:

            fea = model.CarbonFeature(ref)

        fea.name = name

        fea.status = status

        fea.desc = description

        for childdict in dict.get('children',[]):

            reader = FeatureReader()

            subfea = reader.loads(childdict)

            if subfea != None:

                fea.add_feature(subfea)

        return fea

class DataWriter(CarbonWriter):

    @classmethod

    def supported_class(cls, classname):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given class name

        """

        if  classname=="Data" or \

            classname=="DataContainer":

            return True

        else:

            return False

    def dumps(self, obj):

        """

        @param obj: The DataContainer object 

        """

        datadict = {}

        for dataelem in obj._traverse(type=api.Data):

            if dataelem.get_value() != None:

                datadict[dataelem.get_fearef()] = map_confml2carbon_value(dataelem.get_value())

        return datadict

class DataReader(CarbonReader):

    """

    """ 

    @classmethod

    def supported_elem(cls, elemname, parent=None):

        """

        Class method to determine if this ConfmlWriter supports writing

        of the given elem name

        """

        if elemname=="data":

            return True

        else:

            return False

    def __init__(self):

        pass

    def loads(self, dict):

        """

        @param obj: The Configuration object 

        """

        datacont  = api.Configuration('confml/data.confml')

        for dataref in dict.keys():

            # Ignore null values