class ForksController(BaseRepoController):

    @LoginRequired()

    def __before__(self):

        super(ForksController, self).__before__()

    def __load_defaults(self):

        c.repo_groups = RepoGroup.groups_choices(check_perms=True)

        c.repo_groups_choices = map(lambda k: unicode(k[0]), c.repo_groups)

        choices, c.landing_revs = ScmModel().get_repo_landing_revs()

        c.landing_revs_choices = choices

    def __load_data(self, repo_name=None):

        """

        Load defaults settings for edit, and update

        :param repo_name:

        """

        self.__load_defaults()

        c.repo_info = db_repo = Repository.get_by_repo_name(repo_name)

        repo = db_repo.scm_instance

        if c.repo_info is None:

            h.not_mapped_error(repo_name)

            return redirect(url('repos'))

        c.default_user_id = User.get_by_username('default').user_id

        c.in_public_journal = UserFollowing.query()\

            .filter(UserFollowing.user_id == c.default_user_id)\

            .filter(UserFollowing.follows_repository == c.repo_info).scalar()

        if c.repo_info.stats:

            last_rev = c.repo_info.stats.stat_on_revision+1

        else:

            last_rev = 0

        c.stats_revision = last_rev

        c.repo_last_rev = repo.count() if repo.revisions else 0

        if last_rev == 0 or c.repo_last_rev == 0:

            c.stats_percentage = 0

        else:

            c.stats_percentage = '%.2f' % ((float((last_rev)) /

                                            c.repo_last_rev) * 100)

        defaults = RepoModel()._get_defaults(repo_name)

        # add suffix to fork

        defaults['repo_name'] = '%s-fork' % defaults['repo_name']

        return defaults

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def forks(self, repo_name):

        p = safe_int(request.params.get('page', 1), 1)

        repo_id = c.rhodecode_db_repo.repo_id

        d = []

        for r in Repository.get_repo_forks(repo_id):

            if not HasRepoPermissionAny(

                'repository.read', 'repository.write', 'repository.admin'

            )(r.repo_name, 'get forks check'):

                continue

            d.append(r)

        c.forks_pager = Page(d, page=p, items_per_page=20)

        c.forks_data = render('/forks/forks_data.html')

        if request.environ.get('HTTP_X_PARTIAL_XHR'):

            return c.forks_data

        return render('/forks/forks.html')

    @NotAnonymous()

    @HasPermissionAnyDecorator('hg.admin', 'hg.fork.repository')

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def fork(self, repo_name):

        c.repo_info = Repository.get_by_repo_name(repo_name)

        if not c.repo_info:

            h.not_mapped_error(repo_name)

            return redirect(url('home'))

        defaults = self.__load_data(repo_name)

        return htmlfill.render(

            render('forks/fork.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False

        )

    @NotAnonymous()

    @HasPermissionAnyDecorator('hg.admin', 'hg.fork.repository')

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def fork_create(self, repo_name):

        self.__load_defaults()