"""cubicweb on appengine plugins for cubicweb-ctl

:organization: Logilab
:copyright: 2008-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
"""
__docformat__ = "restructuredtext en"

from os.path import exists, join, split, basename, normpath, abspath

from logilab.common.clcommands import register_commands

from cubicweb import CW_SOFTWARE_ROOT, BadCommandUsage
from cubicweb.toolsutils import (Command, copy_skeleton, create_symlink,
                                 create_dir)
from cubicweb.cwconfig import CubicWebConfiguration

from logilab import common as lgc
from logilab import constraint as lgcstr
from logilab import mtconverter as lgmtc
import rql, yams, yapps, simplejson, dateutil, vobject, docutils, roman

SLINK_DIRECTORIES = (
    (lgc.__path__[0], 'logilab/common'),
    (lgmtc.__path__[0], 'logilab/mtconverter'),
    (lgcstr.__path__[0], 'logilab/constraint'),
    (rql.__path__[0], 'rql'),
    (simplejson.__path__[0], 'simplejson'),
    (yams.__path__[0], 'yams'),
    (yapps.__path__[0], 'yapps'),
    (dateutil.__path__[0], 'dateutil'),
    (vobject.__path__[0], 'vobject'),
    (docutils.__path__[0], 'docutils'),
    (roman.__file__.replace('.pyc', '.py'), 'roman.py'),

    (join(CW_SOFTWARE_ROOT, 'embedded', 'mx'), 'mx'),
    ('/usr/share/fckeditor/', 'fckeditor'),

    (join(CW_SOFTWARE_ROOT, 'web', 'data'), join('cubes', 'shared', 'data')),
    (join(CW_SOFTWARE_ROOT, 'web', 'wdoc'), join('cubes', 'shared', 'wdoc')),
    (join(CW_SOFTWARE_ROOT, 'i18n'), join('cubes', 'shared', 'i18n')),
    (join(CW_SOFTWARE_ROOT, 'goa', 'tools'), 'tools'),
    (join(CW_SOFTWARE_ROOT, 'goa', 'bin'), 'bin'),
    )

COPY_CW_FILES = (
    '__init__.py',
    '__pkginfo__.py',
    '_exceptions.py',
    'appobject.py',
    'dbapi.py',
    'cwvreg.py',
    'cwconfig.py',
    'entity.py',
    'interfaces.py',
    'rset.py',
    'schema.py',
    'schemaviewer.py',
    'selectors.py',
    'utils.py',
    'vregistry.py',
    'view.py',

    'common/mail.py',
    'common/migration.py',
    'common/mixins.py',
    'common/mttransforms.py',
    'common/uilib.py',

    'ext/html4zope.py',
    'ext/rest.py',

    'server/hookhelper.py',
    'server/hooksmanager.py',
    'server/hooks.py',
    'server/migractions.py',
    'server/pool.py',
    'server/querier.py',
    'server/repository.py',
    'server/rqlrewrite.py',
    'server/securityhooks.py',
    'server/session.py',
    'server/serverconfig.py',
    'server/ssplanner.py',
    'server/utils.py',
    'server/sources/__init__.py',

    'entities/__init__.py',
    'entities/authobjs.py',
    'entities/lib.py',
    'entities/schemaobjs.py',
    'entities/wfobjs.py',

    'sobjects/__init__.py',
    'sobjects/notification.py',

# XXX would be necessary for goa.testlib but require more stuff to be added
#     such as server.serverconfig and so on (check devtools.__init__)
#    'devtools/__init__.py',
#    'devtools/fake.py',

    'web/__init__.py',
    'web/_exceptions.py',
    'web/action.py',
    'web/application.py',
    'web/box.py',
    'web/component.py',
    'web/controller.py',
    'web/form.py',
    'web/htmlwidgets.py',
    'web/httpcache.py',
    'web/request.py',
    'web/webconfig.py',
    'web/widgets.py',

    'web/views/__init__.py',
    'web/views/actions.py',
    'web/views/basecomponents.py',
    'web/views/basecontrollers.py',
    'web/views/baseforms.py',
    'web/views/basetemplates.py',
    'web/views/baseviews.py',
    'web/views/boxes.py',
    'web/views/calendar.py',
    'web/views/error.py',
    'web/views/editcontroller.py',
    'web/views/ibreadcrumbs.py',
    'web/views/idownloadable.py',
    'web/views/magicsearch.py',
    'web/views/management.py',
    'web/views/navigation.py',
    'web/views/startup.py',
    'web/views/vcard.py',
    'web/views/wdoc.py',
    'web/views/urlpublishing.py',
    'web/views/urlrewrite.py',
    'web/views/xbel.py',

    'wsgi/__init__.py',
    'wsgi/handler.py',
    'wsgi/request.py',

    'goa/__init__.py',
    'goa/db.py',
    'goa/dbinit.py',
    'goa/dbmyams.py',
    'goa/goaconfig.py',
    'goa/goavreg.py',
    'goa/gaesource.py',
    'goa/rqlinterpreter.py',
    'goa/appobjects/__init__.py',
    'goa/appobjects/components.py',
    'goa/appobjects/dbmgmt.py',
    'goa/appobjects/gauthservice.py',
    'goa/appobjects/sessions.py',

    'schemas/bootstrap.py',
    'schemas/base.py',
    )

OVERRIDEN_FILES = (
    ('toolsutils.py', 'toolsutils.py'),
    ('mttransforms.py', 'common/mttransforms.py'),
    ('server__init__.py', 'server/__init__.py'),
    ('rqlannotation.py', 'server/rqlannotation.py'),
    )


def create_init_file(pkgdir, pkgname):
    open(join(pkgdir, '__init__.py'), 'w').write('"""%s pkg"""' % pkgname)


class NewGoogleAppCommand(Command):
    """Create a new google appengine instance.

    <instance directory>
      the path to the appengine instance directory
    """
    name = 'newgapp'
    arguments = '<instance directory>'

    def run(self, args):
        if len(args) != 1:
            raise BadCommandUsage("exactly one argument is expected")
        appldir, = args
        appldir = normpath(abspath(appldir))
        appid = basename(appldir)
        context = {'appname': appid}
        # goa instance'skeleton
        copy_skeleton(join(CW_SOFTWARE_ROOT, 'goa', 'skel'),
                      appldir, context, askconfirm=True)
        # cubicweb core dependancies
        for directory, subdirectory in SLINK_DIRECTORIES:
            subdirectory = join(appldir, subdirectory)
            if not exists(split(subdirectory)[0]):
                create_dir(split(subdirectory)[0])
            create_symlink(directory, join(appldir, subdirectory))
        create_init_file(join(appldir, 'logilab'), 'logilab')
        # copy supported part of cubicweb
        create_dir(join(appldir, 'cubicweb'))
        for fpath in COPY_CW_FILES:
            target = join(appldir, 'cubicweb', fpath)
            if not exists(split(target)[0]):
                create_dir(split(target)[0])
            create_symlink(join(CW_SOFTWARE_ROOT, fpath), target)
        # overriden files
        create_init_file(join(appldir, 'cubicweb/common'), 'cubicweb.common')
        for fpath, subfpath in OVERRIDEN_FILES:
            create_symlink(join(CW_SOFTWARE_ROOT, 'goa', 'overrides', fpath),
                           join(appldir, 'cubicweb', subfpath))
        # link every supported components
        packagesdir = join(appldir, 'cubes')
        create_init_file(join(appldir, 'cubes'), 'cubes')
        for include in ('addressbook','basket', 'blog','folder',
                        'tag', 'comment', 'file', 'link',
                        'mailinglist', 'person', 'task', 'zone',
                        ):
            create_symlink(CubicWebConfiguration.cube_dir(include),
                           join(packagesdir, include))
        # generate sample config
        from cubicweb.goa.goaconfig import GAEConfiguration
        from cubicweb.common.migration import MigrationHelper
        config = GAEConfiguration(appid, appldir)
        if exists(config.main_config_file()):
            mih = MigrationHelper(config)
            mih.rewrite_configuration()
        else:
            config.save()


register_commands((NewGoogleAppCommand,
                   ))