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

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""

kallithea.controllers.admin.repos

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Repositories controller for Kallithea

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Apr 7, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import logging

import traceback

import formencode

from formencode import htmlfill

from webob.exc import HTTPInternalServerError, HTTPForbidden, HTTPNotFound

from pylons import request, tmpl_context as c, url

from pylons.controllers.util import redirect

from pylons.i18n.translation import _

from sqlalchemy.sql.expression import func

from kallithea.lib import helpers as h

from kallithea.lib.auth import LoginRequired, HasPermissionAllDecorator, \

    HasRepoPermissionAllDecorator, NotAnonymous,HasPermissionAny, \

    HasRepoGroupPermissionAny, HasRepoPermissionAnyDecorator

from kallithea.lib.base import BaseRepoController, render

from kallithea.lib.utils import action_logger, repo_name_slug, jsonify

from kallithea.lib.vcs import RepositoryError

from kallithea.model.meta import Session

from kallithea.model.db import User, Repository, UserFollowing, RepoGroup,\

    Setting, RepositoryField

from kallithea.model.forms import RepoForm, RepoFieldForm, RepoPermsForm

from kallithea.model.scm import ScmModel, RepoGroupList, RepoList

from kallithea.model.repo import RepoModel

from kallithea.lib.compat import json

from kallithea.lib.exceptions import AttachedForksError

from kallithea.lib.utils2 import safe_int

log = logging.getLogger(__name__)

class ReposController(BaseRepoController):

    """

    REST Controller styled on the Atom Publishing Protocol"""

    # To properly map this controller, ensure your config/routing.py

    # file has a resource setup:

    #     map.resource('repo', 'repos')

    @LoginRequired()

    def __before__(self):

        super(ReposController, self).__before__()

    def _load_repo(self, repo_name):

        repo_obj = Repository.get_by_repo_name(repo_name)

        if repo_obj is None:

            h.not_mapped_error(repo_name)

            return redirect(url('repos'))

        return repo_obj

    def __load_defaults(self, repo=None):

        acl_groups = RepoGroupList(RepoGroup.query().all(),

                               perm_set=['group.write', 'group.admin'])

        c.repo_groups = RepoGroup.groups_choices(groups=acl_groups)

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

        # in case someone no longer have a group.write access to a repository

        # pre fill the list with this entry, we don't care if this is the same

        # but it will allow saving repo data properly.

        repo_group = None

        if repo:

            repo_group = repo.group

        if repo_group and unicode(repo_group.group_id) not in c.repo_groups_choices:

            c.repo_groups_choices.append(unicode(repo_group.group_id))

            c.repo_groups.append(RepoGroup._generate_choice(repo_group))

        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:

        """

        c.repo_info = self._load_repo(repo_name)

        self.__load_defaults(c.repo_info)

        ##override defaults for exact repo info here git/hg etc

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

        c.landing_revs_choices = choices

        defaults = RepoModel()._get_defaults(repo_name)

        return defaults

    def index(self, format='html'):

        """GET /repos: All items in the collection"""

        # url('repos')

        _list = Repository.query()\

                        .order_by(func.lower(Repository.repo_name))\

                        .all()

        c.repos_list = RepoList(_list, perm_set=['repository.admin'])

        repos_data = RepoModel().get_repos_as_dict(repos_list=c.repos_list,

                                                   admin=True,

                                                   super_user_actions=True)

        #json used to render the grid

        c.data = json.dumps(repos_data)

        return render('admin/repos/repos.html')

    @NotAnonymous()

    def create(self):

        """

        POST /repos: Create a new item"""

        # url('repos')

        self.__load_defaults()

        form_result = {}

        task_id = None

        try:

            # CanWriteToGroup validators checks permissions of this POST

            form_result = RepoForm(repo_groups=c.repo_groups_choices,

                                   landing_revs=c.landing_revs_choices)()\

                            .to_python(dict(request.POST))

            # create is done sometimes async on celery, db transaction

            # management is handled there.

            task = RepoModel().create(form_result, self.authuser.user_id)

            from celery.result import BaseAsyncResult

            if isinstance(task, BaseAsyncResult):

                task_id = task.task_id

        except formencode.Invalid, errors:

            return htmlfill.render(

                render('admin/repos/repo_add.html'),

                defaults=errors.value,

                errors=errors.error_dict or {},

                prefix_error=False,

                force_defaults=False,

                encoding="UTF-8")

        except Exception:

            log.error(traceback.format_exc())

            msg = (_('Error creating repository %s')

                   % form_result.get('repo_name'))

            h.flash(msg, category='error')

            return redirect(url('home'))

        return redirect(h.url('repo_creating_home',

                              repo_name=form_result['repo_name_full'],

                              task_id=task_id))

    @NotAnonymous()

    def create_repository(self):

        """GET /_admin/create_repository: Form to create a new item"""

        new_repo = request.GET.get('repo', '')

        parent_group = request.GET.get('parent_group')

        if not HasPermissionAny('hg.admin', 'hg.create.repository')():

            #you're not super admin nor have global create permissions,

            #but maybe you have at least write permission to a parent group ?

            _gr = RepoGroup.get(parent_group)

            gr_name = _gr.group_name if _gr else None

            # create repositories with write permission on group is set to true

            create_on_write = HasPermissionAny('hg.create.write_on_repogroup.true')()

            group_admin = HasRepoGroupPermissionAny('group.admin')(group_name=gr_name)

            group_write = HasRepoGroupPermissionAny('group.write')(group_name=gr_name)

            if not (group_admin or (group_write and create_on_write)):

                raise HTTPForbidden

        acl_groups = RepoGroupList(RepoGroup.query().all(),

                               perm_set=['group.write', 'group.admin'])

        c.repo_groups = RepoGroup.groups_choices(groups=acl_groups)

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

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

        c.new_repo = repo_name_slug(new_repo)

        ## apply the defaults from defaults page

        defaults = Setting.get_default_repo_settings(strip_prefix=True)

        if parent_group:

            defaults.update({'repo_group': parent_group})

        return htmlfill.render(

            render('admin/repos/repo_add.html'),

            defaults=defaults,

            errors={},

            prefix_error=False,

            encoding="UTF-8",

            force_defaults=False)

    @LoginRequired()

    @NotAnonymous()

    def repo_creating(self, repo_name):

        c.repo = repo_name

        c.task_id = request.GET.get('task_id')

        if not c.repo:

            raise HTTPNotFound()

        return render('admin/repos/repo_creating.html')

    @LoginRequired()

    @NotAnonymous()

    @jsonify

    def repo_check(self, repo_name):

        c.repo = repo_name

        task_id = request.GET.get('task_id')

        if task_id and task_id not in ['None']:

            from kallithea import CELERY_ON

            from celery.result import AsyncResult

            if CELERY_ON:

                task = AsyncResult(task_id)

                if task.failed():

                    raise HTTPInternalServerError(task.traceback)

        repo = Repository.get_by_repo_name(repo_name)

        if repo and repo.repo_state == Repository.STATE_CREATED:

            if repo.clone_uri:

                clone_uri = repo.clone_uri_hidden

                h.flash(_('Created repository %s from %s')

                        % (repo.repo_name, clone_uri), category='success')

            else:

                repo_url = h.link_to(repo.repo_name,

                                     h.url('summary_home',

                                           repo_name=repo.repo_name))

                fork = repo.fork

                if fork:

                    fork_name = fork.repo_name

                    h.flash(h.literal(_('Forked repository %s as %s')

                            % (fork_name, repo_url)), category='success')

                else:

                    h.flash(h.literal(_('Created repository %s') % repo_url),

                            category='success')

            return {'result': True}

        return {'result': False}

    @HasRepoPermissionAllDecorator('repository.admin')

    def update(self, repo_name):

        """

        PUT /repos/repo_name: Update an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="PUT" />

        # Or using helpers:

        #    h.form(url('repo', repo_name=ID),

        #           method='put')

        # url('repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        c.active = 'settings'

        c.repo_fields = RepositoryField.query()\

            .filter(RepositoryField.repository == c.repo_info).all()

        self.__load_defaults(c.repo_info)

        repo_model = RepoModel()

        changed_name = repo_name

        #override the choices with extracted revisions !

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

        c.landing_revs_choices = choices

        repo = Repository.get_by_repo_name(repo_name)

        old_data = {

            'repo_name': repo_name,

            'repo_group': repo.group.get_dict() if repo.group else {},

            'repo_type': repo.repo_type,

        }

        _form = RepoForm(edit=True, old_data=old_data,

                         repo_groups=c.repo_groups_choices,

                         landing_revs=c.landing_revs_choices)()

        try:

            form_result = _form.to_python(dict(request.POST))

            repo = repo_model.update(repo_name, **form_result)

            ScmModel().mark_for_invalidation(repo_name)

            h.flash(_('Repository %s updated successfully') % repo_name,

                    category='success')

            changed_name = repo.repo_name

            action_logger(self.authuser, 'admin_updated_repo',

                              changed_name, self.ip_addr, self.sa)

            Session().commit()

        except formencode.Invalid, errors:

            defaults = self.__load_data(repo_name)

            defaults.update(errors.value)

            return htmlfill.render(

                render('admin/repos/repo_edit.html'),

                defaults=defaults,

                errors=errors.error_dict or {},

                prefix_error=False,

                encoding="UTF-8",

                force_defaults=False)

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('Error occurred during update of repository %s') \

                    % repo_name, category='error')

        return redirect(url('edit_repo', repo_name=changed_name))

    @HasRepoPermissionAllDecorator('repository.admin')

    def delete(self, repo_name):

        """

        DELETE /repos/repo_name: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('repo', repo_name=ID),

        #           method='delete')

        # url('repo', repo_name=ID)

        repo_model = RepoModel()

        repo = repo_model.get_by_repo_name(repo_name)

        if not repo:

            h.not_mapped_error(repo_name)

            return redirect(url('repos'))

        try:

            _forks = repo.forks.count()

            handle_forks = None

            if _forks and request.POST.get('forks'):

                do = request.POST['forks']

                if do == 'detach_forks':

                    handle_forks = 'detach'

                    h.flash(_('Detached %s forks') % _forks, category='success')

                elif do == 'delete_forks':

                    handle_forks = 'delete'

                    h.flash(_('Deleted %s forks') % _forks, category='success')

            repo_model.delete(repo, forks=handle_forks)

            action_logger(self.authuser, 'admin_deleted_repo',

                  repo_name, self.ip_addr, self.sa)

            ScmModel().mark_for_invalidation(repo_name)

            h.flash(_('Deleted repository %s') % repo_name, category='success')

            Session().commit()

        except AttachedForksError:

            h.flash(_('Cannot delete %s it still contains attached forks')

                        % repo_name, category='warning')

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during deletion of %s') % repo_name,

                    category='error')

        if repo.group:

            return redirect(url('repos_group_home', group_name=repo.group.group_name))

        return redirect(url('repos'))

    @HasPermissionAllDecorator('hg.admin')

    def show(self, repo_name, format='html'):

        """GET /repos/repo_name: Show a specific item"""

        # url('repo', repo_name=ID)

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        defaults = self.__load_data(repo_name)

        if 'clone_uri' in defaults:

            del defaults['clone_uri']

        c.repo_fields = RepositoryField.query()\

            .filter(RepositoryField.repository == c.repo_info).all()

        c.active = 'settings'

        return htmlfill.render(

            render('admin/repos/repo_edit.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False)

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_permissions(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.user_groups_array = repo_model.get_user_groups_js()

        c.active = 'permissions'

        defaults = RepoModel()._get_defaults(repo_name)

        return htmlfill.render(

            render('admin/repos/repo_edit.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False)

    def edit_permissions_update(self, repo_name):

        form = RepoPermsForm()().to_python(request.POST)

        RepoModel()._update_permissions(repo_name, form['perms_new'],

                                        form['perms_updates'])

        #TODO: implement this

        #action_logger(self.authuser, 'admin_changed_repo_permissions',

        #              repo_name, self.ip_addr, self.sa)

        Session().commit()

        h.flash(_('Repository permissions updated'), category='success')

        return redirect(url('edit_repo_perms', repo_name=repo_name))

    def edit_permissions_revoke(self, repo_name):

        try:

            obj_type = request.POST.get('obj_type')

            obj_id = None

            if obj_type == 'user':

                obj_id = safe_int(request.POST.get('user_id'))

            elif obj_type == 'user_group':

                obj_id = safe_int(request.POST.get('user_group_id'))

            if obj_type == 'user':

                RepoModel().revoke_user_permission(repo=repo_name, user=obj_id)

            elif obj_type == 'user_group':

                RepoModel().revoke_user_group_permission(

                    repo=repo_name, group_name=obj_id

                )

            #TODO: implement this

            #action_logger(self.authuser, 'admin_revoked_repo_permissions',

            #              repo_name, self.ip_addr, self.sa)

            Session().commit()

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during revoking of permission'),

                    category='error')

            raise HTTPInternalServerError()

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_fields(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        c.repo_fields = RepositoryField.query()\

            .filter(RepositoryField.repository == c.repo_info).all()

        c.active = 'fields'

        if request.POST:

            return redirect(url('repo_edit_fields'))

        return render('admin/repos/repo_edit.html')

    @HasRepoPermissionAllDecorator('repository.admin')

    def create_repo_field(self, repo_name):

        try:

            form_result = RepoFieldForm()().to_python(dict(request.POST))

            new_field = RepositoryField()

            new_field.repository = Repository.get_by_repo_name(repo_name)

            new_field.field_key = form_result['new_field_key']

            new_field.field_type = form_result['new_field_type']  # python type

            new_field.field_value = form_result['new_field_value']  # set initial blank value

            new_field.field_desc = form_result['new_field_desc']

            new_field.field_label = form_result['new_field_label']

            Session().add(new_field)

            Session().commit()

        except Exception, e:

            log.error(traceback.format_exc())

            msg = _('An error occurred during creation of field')

            if isinstance(e, formencode.Invalid):

                msg += ". " + e.msg

            h.flash(msg, category='error')

        return redirect(url('edit_repo_fields', repo_name=repo_name))

    @HasRepoPermissionAllDecorator('repository.admin')

    def delete_repo_field(self, repo_name, field_id):

        field = RepositoryField.get_or_404(field_id)

        try:

            Session().delete(field)

            Session().commit()

        except Exception, e:

            log.error(traceback.format_exc())

            msg = _('An error occurred during removal of field')

            h.flash(msg, category='error')

        return redirect(url('edit_repo_fields', repo_name=repo_name))

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_advanced(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        c.default_user_id = User.get_default_user().user_id

        c.in_public_journal = UserFollowing.query()\

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

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

        _repos = Repository.query().order_by(Repository.repo_name).all()

        read_access_repos = RepoList(_repos)

        c.repos_list = [(None, _('-- Not a fork --'))]

        c.repos_list += [(x.repo_id, x.repo_name)

                         for x in read_access_repos

                         if x.repo_id != c.repo_info.repo_id]

        defaults = {

            'id_fork_of': c.repo_info.fork.repo_id if c.repo_info.fork else ''

        }

        c.active = 'advanced'

        if request.POST:

            return redirect(url('repo_edit_advanced'))

        return htmlfill.render(

            render('admin/repos/repo_edit.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False)

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_advanced_journal(self, repo_name):

        """

        Sets this repository to be visible in public journal,

        in other words asking default user to follow this repo

        :param repo_name:

        """

        try:

            repo_id = Repository.get_by_repo_name(repo_name).repo_id

            user_id = User.get_default_user().user_id

            self.scm_model.toggle_following_repo(repo_id, user_id)

            h.flash(_('Updated repository visibility in public journal'),

                    category='success')

            Session().commit()

        except Exception:

            h.flash(_('An error occurred during setting this'

                      ' repository in public journal'),

                    category='error')

        return redirect(url('edit_repo_advanced', repo_name=repo_name))

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_advanced_fork(self, repo_name):

        """

        Mark given repository as a fork of another

        :param repo_name:

        """

        try:

            fork_id = request.POST.get('id_fork_of')

            repo = ScmModel().mark_as_fork(repo_name, fork_id,

                                           self.authuser.username)

            fork = repo.fork.repo_name if repo.fork else _('Nothing')

            Session().commit()

            h.flash(_('Marked repo %s as fork of %s') % (repo_name, fork),

                    category='success')

        except RepositoryError, e:

            log.error(traceback.format_exc())

            h.flash(str(e), category='error')

        except Exception, e:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during this operation'),

                    category='error')

        return redirect(url('edit_repo_advanced', repo_name=repo_name))

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_advanced_locking(self, repo_name):

        """

        Unlock repository when it is locked !

        :param repo_name:

        """

        try:

            repo = Repository.get_by_repo_name(repo_name)

            if request.POST.get('set_lock'):

                Repository.lock(repo, c.authuser.user_id)

                h.flash(_('Locked repository'), category='success')

            elif request.POST.get('set_unlock'):

                Repository.unlock(repo)

                h.flash(_('Unlocked repository'), category='success')

        except Exception, e:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during unlocking'),

                    category='error')

        return redirect(url('edit_repo_advanced', repo_name=repo_name))

    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')

    def toggle_locking(self, repo_name):

        """

        Toggle locking of repository by simple GET call to url

        :param repo_name:

        """

        try:

            repo = Repository.get_by_repo_name(repo_name)

            if repo.enable_locking:

                if repo.locked[0]:

                    Repository.unlock(repo)

                    action = _('Unlocked')

                else:

                    Repository.lock(repo, c.authuser.user_id)

                    action = _('Locked')

                h.flash(_('Repository has been %s') % action,

                        category='success')

        except Exception, e:

            log.error(traceback.format_exc())

            h.flash(_('An error occurred during unlocking'),

                    category='error')

        return redirect(url('summary_home', repo_name=repo_name))

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_caches(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        c.active = 'caches'

        if request.POST:

            try:

                ScmModel().mark_for_invalidation(repo_name, delete=True)

                Session().commit()

                h.flash(_('Cache invalidation successful'),

                        category='success')

            except Exception, e:

                log.error(traceback.format_exc())

                h.flash(_('An error occurred during cache invalidation'),

                        category='error')

            return redirect(url('edit_repo_caches', repo_name=c.repo_name))

        return render('admin/repos/repo_edit.html')

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_remote(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        c.active = 'remote'

        if request.POST:

            try:

                ScmModel().pull_changes(repo_name, self.authuser.username)

                h.flash(_('Pulled from remote location'), category='success')

            except Exception, e:

                log.error(traceback.format_exc())

                h.flash(_('An error occurred during pull from remote location'),

                        category='error')

            return redirect(url('edit_repo_remote', repo_name=c.repo_name))

        return render('admin/repos/repo_edit.html')

    @HasRepoPermissionAllDecorator('repository.admin')

    def edit_statistics(self, repo_name):

        """GET /repo_name/settings: Form to edit an existing item"""

        # url('edit_repo', repo_name=ID)

        c.repo_info = self._load_repo(repo_name)

        repo = c.repo_info.scm_instance

        if c.repo_info.stats:

            # this is on what revision we ended up so we add +1 for count

            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)

        c.active = 'statistics'

        if request.POST:

            try:

                RepoModel().delete_stats(repo_name)

                Session().commit()

            except Exception, e:

                log.error(traceback.format_exc())

                h.flash(_('An error occurred during deletion of repository stats'),

                        category='error')

            return redirect(url('edit_repo_statistics', repo_name=c.repo_name))

        return render('admin/repos/repo_edit.html')

    if ($comments.length > 0) {

        $firstlinks.html('<a href="#{0}">First comment</a>'.format($comments.attr('id')));

    }

    if ($comments.length <= 1) {

        return;

    }

    $comments.each(function(i, e){

            var prev = '';

            if (i > 0){

                var prev_anchor = $($comments.get(i-1)).attr('id');

                prev = '<a href="#{0}">Previous comment</a>'.format(prev_anchor);

            }

            var next = '';

            if (i+1 < $comments.length){

                var next_anchor = $($comments.get(i+1)).attr('id');

                next = '<a href="#{0}">Next comment</a>'.format(next_anchor);

            }

            $(this).find('.comment-prev-next-links').html(

                '<div class="prev-comment">{0}</div>'.format(prev) +

                '<div class="next-comment">{0}</div>'.format(next));

        });

}

/* activate files.html stuff */

var fileBrowserListeners = function(current_url, node_list_url, url_base){

    var current_url_branch = "?branch=__BRANCH__";

    $('#stay_at_branch').on('click',function(e){

        if(e.currentTarget.checked){

            var uri = current_url_branch;

            uri = uri.replace('__BRANCH__',e.currentTarget.value);

            window.location = uri;

        }

        else{

            window.location = current_url;

        }

    })

    var $node_filter = $('#node_filter');

    var filterTimeout = null;

    var nodes = null;

    var initFilter = function(){

        $('#node_filter_box_loading').show();

        $('#search_activate_id').hide();

        $('#add_node_id').hide();

        $.ajax({url: node_list_url, headers: {'X-PARTIAL-XHR': '1'}, cache: false})

            .done(function(json) {

                    nodes = json.nodes;

                    $('#node_filter_box_loading').hide();

                    $('#node_filter_box').show();

                    $node_filter.focus();

                    if($node_filter.hasClass('init')){

                        $node_filter.val('');

                        $node_filter.removeClass('init');

                    }

                })

            .fail(function() {

                    console.log('fileBrowserListeners initFilter failed to load');

                })

        ;

    }

    var updateFilter = function(e) {

        return function(){

            // Reset timeout

            filterTimeout = null;

            var query = e.currentTarget.value.toLowerCase();

            var match = [];

            var matches = 0;

            var matches_max = 20;

            if (query != ""){

                for(var i=0;i<nodes.length;i++){

                    var pos = nodes[i].name.toLowerCase().indexOf(query)

                    if(query && pos != -1){

                        matches++

                        //show only certain amount to not kill browser

                        if (matches > matches_max){

                            break;

                        }

                        var n = nodes[i].name;

                        var t = nodes[i].type;

                        var n_hl = n.substring(0,pos)

                          +"<b>{0}</b>".format(n.substring(pos,pos+query.length))

                          +n.substring(pos+query.length)

                        var new_url = url_base.replace('__FPATH__',n);

                        match.push('<tr><td><a class="browser-{0}" href="{1}">{2}</a></td><td colspan="5"></td></tr>'.format(t,new_url,n_hl));

                    }

                    if(match.length >= matches_max){

                        match.push('<tr><td>{0}</td><td colspan="5"></td></tr>'.format(_TM['Search truncated']));

                        break;

                    }

                }

            }

            if(query != ""){

                $('#tbody').hide();

                $('#tbody_filtered').show();

                if (match.length==0){

                  match.push('<tr><td>{0}</td><td colspan="5"></td></tr>'.format(_TM['No matching files']));

                }

                $('#tbody_filtered').html(match.join(""));

            }

            else{

                $('#tbody').show();

                $('#tbody_filtered').hide();

            }

        }

    };

    $('#filter_activate').click(function(){

            initFilter();

        });

    $node_filter.click(function(){

            if($node_filter.hasClass('init')){

                $node_filter.val('');

                $node_filter.removeClass('init');

            }

        });

    $node_filter.keyup(function(e){

            clearTimeout(filterTimeout);

            filterTimeout = setTimeout(updateFilter(e),600);

        });

};

var initCodeMirror = function(textarea_id, resetUrl){

    var myCodeMirror = CodeMirror.fromTextArea($('#' + textarea_id)[0], {

            mode: "null",

            lineNumbers: true,

            indentUnit: 4,

            autofocus: true

        });

    CodeMirror.modeURL = "/codemirror/mode/%N/%N.js";

    $('#reset').click(function(e){

            window.location=resetUrl;

        });

    $('#file_enable').click(function(){

            $('#editor_container').show();

            $('#upload_file_container').hide();

            $('#filename_container').show();

            $('#set_mode_header').show();

        });

    $('#upload_file_enable').click(function(){

            $('#editor_container').hide();

            $('#upload_file_container').show();

            $('#filename_container').hide();

            $('#set_mode_header').hide();

        });

    return myCodeMirror

};

var setCodeMirrorMode = function(codeMirrorInstance, mode) {

    CodeMirror.autoLoadMode(codeMirrorInstance, mode);

}

var _getIdentNode = function(n){

    //iterate thrugh nodes until matching interesting node

    if (typeof n == 'undefined'){

        return -1

    }

    if(typeof n.id != "undefined" && n.id.match('L[0-9]+')){

        return n

    }

    else{

        return _getIdentNode(n.parentNode);

    }

};

/* generate links for multi line selects that can be shown by files.html page_highlights.

 * This is a mouseup handler for hlcode from CodeHtmlFormatter and pygmentize */

var getSelectionLink = function(e) {

    //get selection from start/to nodes

    if (typeof window.getSelection != "undefined") {

        s = window.getSelection();

        var from = _getIdentNode(s.anchorNode);

        var till = _getIdentNode(s.focusNode);

        var f_int = parseInt(from.id.replace('L',''));

        var t_int = parseInt(till.id.replace('L',''));

        var yoffset = 35;

        var ranges = [parseInt(from.id.replace('L','')), parseInt(till.id.replace('L',''))];

        if (ranges[0] > ranges[1]){