"""additional cubicweb-ctl commands and command handlers for cubicweb and cubicweb's

cubes development

:organization: Logilab

:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

"""

__docformat__ = "restructuredtext en"

import sys

from os import walk, mkdir, chdir, listdir

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

from logilab.common import STD_BLACKLIST

from logilab.common.modutils import get_module_files

from logilab.common.textutils import get_csv

from cubicweb import CW_SOFTWARE_ROOT as BASEDIR

from cubicweb.__pkginfo__ import version as cubicwebversion

from cubicweb import BadCommandUsage

from cubicweb.toolsutils import Command, register_commands, confirm, copy_skeleton

from cubicweb.web.webconfig import WebConfiguration

from cubicweb.server.serverconfig import ServerConfiguration

class DevConfiguration(ServerConfiguration, WebConfiguration):

    """dummy config to get full library schema and entities"""

    creating = True

    def __init__(self, appid=None, cube=None):

        self._cube = cube

        super(DevConfiguration, self).__init__(appid)

        if self._cube is None:

            self._cubes = ()

        else:

            self._cubes = self.expand_cubes(self.cube_dependencies(self._cube))

#    def adjust_sys_path(self):

#        # update python path if necessary

#        if not self.cubes_dir() in sys.path:

#            sys.path.insert(0, self.cubes_dir())

    @property

    def apphome(self):

        return self.appid

    def init_log(self, debug=None):

        pass

    def load_configuration(self):

        pass

    cubicweb_vobject_path = ServerConfiguration.cubicweb_vobject_path | WebConfiguration.cubicweb_vobject_path

    cube_vobject_path = ServerConfiguration.cube_vobject_path | WebConfiguration.cube_vobject_path

def generate_schema_pot(w, cubedir=None):

    """generate a pot file with schema specific i18n messages

    notice that relation definitions description and static vocabulary

    should be marked using '_' and extracted using xgettext

    """

    from cubicweb.cwvreg import CubicWebRegistry

    cube = cubedir and split(cubedir)[-1]

    config = DevConfiguration(join(BASEDIR, 'web'), cube)

    if cubedir:

        libschema = config.load_schema()

        config = DevConfiguration(cubedir, cube)

        schema = config.load_schema()

    else:

        schema = config.load_schema()

        libschema = None

        config.cleanup_interface_sobjects = False

    vreg = CubicWebRegistry(config)

    vreg.set_schema(schema)

    vreg.register_objects(config.vregistry_path())

    w(DEFAULT_POT_HEAD)

    _generate_schema_pot(w, vreg, schema, libschema=libschema,

                         cube=cube)

    # cleanup sys.modules, required when we're updating multiple cubes

    for name, mod in sys.modules.items():

        if mod is None:

            # duh ? logilab.common.os for instance

            del sys.modules[name]

            continue

        if not hasattr(mod, '__file__'):

            continue

        for path in config.vregistry_path():

            if mod.__file__.startswith(path):

                del sys.modules[name]

                break

def _generate_schema_pot(w, vreg, schema, libschema=None, cube=None):

    from mx.DateTime import now

    from cubicweb.common.i18n import add_msg

    w('# schema pot file, generated on %s\n' % now().strftime('%Y-%m-%d %H:%M:%S'))

    w('# \n')

    w('# singular and plural forms for each entity type\n')

    w('\n')

    if libschema is not None:

        entities = [e for e in schema.entities() if not e in libschema]

    else:

        entities = schema.entities()

    done = set()

    for eschema in sorted(entities):

        etype = eschema.type

        add_msg(w, etype)

        add_msg(w, '%s_plural' % etype)

        if not eschema.is_final():

            add_msg(w, 'This %s' % etype)

            add_msg(w, 'New %s' % etype)

            add_msg(w, 'add a %s' % etype)

            add_msg(w, 'remove this %s' % etype)

        if eschema.description and not eschema.description in done:

            done.add(eschema.description)

            add_msg(w, eschema.description)

    w('# subject and object forms for each relation type\n')

    w('# (no object form for final relation types)\n')

    w('\n')

    if libschema is not None:

        relations = [r for r in schema.relations() if not r in libschema]

    else:

        relations = schema.relations()

    for rschema in sorted(set(relations)):

        rtype = rschema.type

        add_msg(w, rtype)

        if not (schema.rschema(rtype).is_final() or rschema.symetric):

            add_msg(w, '%s_object' % rtype)

        if rschema.description and rschema.description not in done:

            done.add(rschema.description)

            add_msg(w, rschema.description)

    w('# add related box generated message\n')

    w('\n')

    for eschema in schema.entities():

        if eschema.is_final():

            continue

        entity = vreg.etype_class(eschema)(None, None)

        for x, rschemas in (('subject', eschema.subject_relations()),

                            ('object', eschema.object_relations())):

            for rschema in rschemas:

                if rschema.is_final():

                    continue

                for teschema in rschema.targets(eschema, x):

                    if defined_in_library(libschema, eschema, rschema, teschema, x):

                        continue

                    if entity.relation_mode(rschema.type, teschema.type, x) == 'create':

                        if x == 'subject':

                            label = 'add %s %s %s %s' % (eschema, rschema, teschema, x)

                            label2 = "creating %s (%s %%(linkto)s %s %s)" % (teschema, eschema, rschema, teschema)

                        else:

                            label = 'add %s %s %s %s' % (teschema, rschema, eschema, x)

                            label2 = "creating %s (%s %s %s %%(linkto)s)" % (teschema, teschema, rschema, eschema)

                        add_msg(w, label)

                        add_msg(w, label2)

    cube = (cube or 'cubicweb') + '.'

    done = set()

    for reg, objdict in vreg.items():

        for objects in objdict.values():

            for obj in objects:

                objid = '%s_%s' % (reg, obj.id)

                if objid in done:

                    continue

                if obj.__module__.startswith(cube) and obj.property_defs:

                    add_msg(w, '%s_description' % objid)

                    add_msg(w, objid)

                    done.add(objid)

def defined_in_library(libschema, etype, rtype, tetype, x):

    """return true if the given relation definition exists in cubicweb's library"""

    if libschema is None:

        return False

    if x == 'subject':

        subjtype, objtype = etype, tetype

    else:

        subjtype, objtype = tetype, etype

    try:

        return libschema.rschema(rtype).has_rdef(subjtype, objtype)

    except KeyError:

        return False

LANGS = ('en', 'fr')

I18NDIR = join(BASEDIR, 'i18n')

DEFAULT_POT_HEAD = r'''msgid ""

msgstr ""

"Project-Id-Version: cubicweb %s\n"

"PO-Revision-Date: 2008-03-28 18:14+0100\n"

"Last-Translator: Logilab Team <contact@logilab.fr>\n"

"Language-Team: fr <contact@logilab.fr>\n"

"MIME-Version: 1.0\n"

"Content-Type: text/plain; charset=UTF-8\n"

"Content-Transfer-Encoding: 8bit\n"

"Generated-By: cubicweb-devtools\n"

"Plural-Forms: nplurals=2; plural=(n > 1);\n"

''' % cubicwebversion

class UpdateCubicWebCatalogCommand(Command):

    """Update i18n catalogs for cubicweb library.

    It will regenerate cubicweb/i18n/xx.po files. You'll have then to edit those

    files to add translations of newly added messages.

    """

    name = 'i18nlibupdate'

    def run(self, args):

        """run the command with its specific arguments"""

        if args:

            raise BadCommandUsage('Too much arguments')

        import shutil

        from tempfile import mktemp

        import yams

        from logilab.common.fileutils import ensure_fs_mode

        from logilab.common.shellutils import find, rm

        from cubicweb.common.i18n import extract_from_tal, execute

        tempdir = mktemp()

        mkdir(tempdir)

        potfiles = [join(I18NDIR, 'entities.pot')]

        print '******** extract schema messages'

        schemapot = join(tempdir, 'schema.pot')

        potfiles.append(schemapot)

        # explicit close necessary else the file may not be yet flushed when

        # we'll using it below

        schemapotstream = file(schemapot, 'w')

        generate_schema_pot(schemapotstream.write, cubedir=None)

        schemapotstream.close()

        print '******** extract TAL messages'

        tali18nfile = join(tempdir, 'tali18n.py')

        extract_from_tal(find(join(BASEDIR, 'web'), ('.py', '.pt')), tali18nfile)

        print '******** .pot files generation'

        for id, files, lang in [('cubicweb', get_module_files(BASEDIR) + find(join(BASEDIR, 'misc', 'migration'), '.py'), None),

                                ('schemadescr', find(join(BASEDIR, 'schemas'), '.py'), None),

                                ('yams', get_module_files(yams.__path__[0]), None),

                                ('tal', [tali18nfile], None),

                                ('js', find(join(BASEDIR, 'web'), '.js'), 'java'),

                                ]:

            cmd = 'xgettext --no-location --omit-header -k_ -o %s %s'

            if lang is not None:

                cmd += ' -L %s' % lang

            potfiles.append(join(tempdir, '%s.pot' % id))

            execute(cmd % (potfiles[-1], ' '.join(files)))

        print '******** merging .pot files'

        cubicwebpot = join(tempdir, 'cubicweb.pot')

        execute('msgcat %s > %s' % (' '.join(potfiles), cubicwebpot))

        print '******** merging main pot file with existing translations'

        chdir(I18NDIR)

        toedit = []

        for lang in LANGS:

            target = '%s.po' % lang

            execute('msgmerge -N --sort-output  %s %s > %snew' % (target, cubicwebpot, target))

            ensure_fs_mode(target)

            shutil.move('%snew' % target, target)

            toedit.append(abspath(target))

        # cleanup

        rm(tempdir)

        # instructions pour la suite

        print '*' * 72

        print 'you can now edit the following files:'

        print '* ' + '\n* '.join(toedit)

        print

        print "then you'll have to update cubes catalogs using the i18nupdate command"

class UpdateTemplateCatalogCommand(Command):

    """Update i18n catalogs for cubes. If no cube is specified, update

    catalogs of all registered cubes.

    """

    name = 'i18nupdate'

    arguments = '[<cube>...]'

    def run(self, args):

        """run the command with its specific arguments"""

        CUBEDIR = DevConfiguration.cubes_dir()

        if args:

            cubes = [join(CUBEDIR, app) for app in args]

        else:

            cubes = [join(CUBEDIR, app) for app in listdir(CUBEDIR)

                         if exists(join(CUBEDIR, app, 'i18n'))]

        update_cubes_catalogs(cubes)

def update_cubes_catalogs(cubes):

    import shutil

    from tempfile import mktemp

    from logilab.common.fileutils import ensure_fs_mode

    from logilab.common.shellutils import find, rm

    from cubicweb.common.i18n import extract_from_tal, execute

    toedit = []

    for cubedir in cubes:

        cube = basename(normpath(cubedir))

        if not isdir(cubedir):

            print 'unknown cube', cube

            continue

        tempdir = mktemp()

        mkdir(tempdir)

        print '*' * 72

        print 'updating %s cube...' % cube

        chdir(cubedir)

        potfiles = [join('i18n', scfile) for scfile in ('entities.pot',)

                    if exists(join('i18n', scfile))]

        print '******** extract schema messages'

        schemapot = join(tempdir, 'schema.pot')

        potfiles.append(schemapot)

        # explicit close necessary else the file may not be yet flushed when

        # we'll using it below

        schemapotstream = file(schemapot, 'w')

        generate_schema_pot(schemapotstream.write, cubedir)

        schemapotstream.close()

        print '******** extract TAL messages'

        tali18nfile = join(tempdir, 'tali18n.py')

        extract_from_tal(find('.', ('.py', '.pt'), blacklist=STD_BLACKLIST+('test',)), tali18nfile)

        print '******** extract Javascript messages'

        jsfiles =  find('.', '.js')

        if jsfiles:

            tmppotfile = join(tempdir, 'js.pot')

            execute('xgettext --no-location --omit-header -k_ -L java --from-code=utf-8 -o %s %s'

                    % (tmppotfile, ' '.join(jsfiles)))

            # no pot file created if there are no string to translate

            if exists(tmppotfile): 

                potfiles.append(tmppotfile)

        print '******** create cube specific catalog'

        tmppotfile = join(tempdir, 'generated.pot')

        cubefiles = find('.', '.py', blacklist=STD_BLACKLIST+('test',))

        cubefiles.append(tali18nfile)

        execute('xgettext --no-location --omit-header -k_ -o %s %s'

                % (tmppotfile, ' '.join(cubefiles)))

        if exists(tmppotfile): # doesn't exists of no translation string found

            potfiles.append(tmppotfile)

        potfile = join(tempdir, 'cube.pot')

        print '******** merging .pot files'

        execute('msgcat %s > %s' % (' '.join(potfiles), potfile))

        print '******** merging main pot file with existing translations'

        chdir('i18n')

        for lang in LANGS:

            print '****', lang

            cubepo = '%s.po' % lang

            if not exists(cubepo):

                shutil.copy(potfile, cubepo)

            else:

                execute('msgmerge -N -s %s %s > %snew' % (cubepo, potfile, cubepo))

                ensure_fs_mode(cubepo)

                shutil.move('%snew' % cubepo, cubepo)

            toedit.append(abspath(cubepo))

        # cleanup

        rm(tempdir)

    # instructions pour la suite

    print '*' * 72

    print 'you can now edit the following files:'

    print '* ' + '\n* '.join(toedit)

class LiveServerCommand(Command):

    """Run a server from within a cube directory.

    """

    name = 'live-server'

    arguments = ''

    options = ()

    def run(self, args):

        """run the command with its specific arguments"""

        from cubicweb.devtools.livetest import runserver

        runserver()

class NewTemplateCommand(Command):

    """Create a new cube.

    <cubename>

      the name of the new cube

    """

    name = 'newcube'

    arguments = '<cubename>'

    def run(self, args):

        if len(args) != 1:

            raise BadCommandUsage("exactly one argument (cube name) is expected")

        cubename, = args

        if ServerConfiguration.mode != "dev":

            self.fail("you can only create new cubes in development mode")

        cubedir = ServerConfiguration.CUBES_DIR

        if not isdir(cubedir):

            print "creating apps directory", cubedir

            try:

                mkdir(cubedir)

            except OSError, err:

                self.fail("failed to create directory %r\n(%s)" % (cubedir, err))

        cubedir = join(cubedir, cubename)

        if exists(cubedir):