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

"""

    rhodecode.controllers.summary

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

    Summary controller for Rhodecode

    :created_on: Apr 18, 2010

    :author: marcink

    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>

    :license: GPLv3, see COPYING for more details.

"""

# 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/>.

import traceback

import calendar

import logging

import urllib

from time import mktime

from datetime import timedelta, date

from urlparse import urlparse

from pylons import tmpl_context as c, request, url, config

from pylons.i18n.translation import _

from webob.exc import HTTPBadRequest

from beaker.cache import cache_region, region_invalidate

from rhodecode.lib.compat import product

from rhodecode.lib.vcs.exceptions import ChangesetError, EmptyRepositoryError, \

    NodeDoesNotExistError

from rhodecode.config.conf import ALL_READMES, ALL_EXTS, LANGUAGES_EXTENSIONS_MAP

from rhodecode.model.db import Statistics, CacheInvalidation

from rhodecode.lib.utils import jsonify

from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator,\

    NotAnonymous

from rhodecode.lib.base import BaseRepoController, render

from rhodecode.lib.vcs.backends.base import EmptyChangeset

from rhodecode.lib.markup_renderer import MarkupRenderer

from rhodecode.lib.celerylib import run_task

from rhodecode.lib.celerylib.tasks import get_commits_stats

from rhodecode.lib.helpers import RepoPage

from rhodecode.lib.compat import json, OrderedDict

from rhodecode.lib.vcs.nodes import FileNode

log = logging.getLogger(__name__)

README_FILES = [''.join([x[0][0], x[1][0]]) for x in

                    sorted(list(product(ALL_READMES, ALL_EXTS)),

                           key=lambda y:y[0][1] + y[1][1])]

class SummaryController(BaseRepoController):

    @LoginRequired()

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

                                   'repository.admin')

    def __before__(self):

        super(SummaryController, self).__before__()

    def index(self, repo_name):

        c.dbrepo = dbrepo = c.rhodecode_db_repo

        def url_generator(**kw):

            return url('shortlog_home', repo_name=repo_name, size=10, **kw)

        c.repo_changesets = RepoPage(c.rhodecode_repo, page=1,

                                     items_per_page=10, url=url_generator)

        page_revisions = [x.raw_id for x in list(c.repo_changesets)]

        c.statuses = c.rhodecode_db_repo.statuses(page_revisions)

        if self.rhodecode_user.username == 'default':

            # for default(anonymous) user we don't need to pass credentials

            username = ''

            password = ''

        else:

            username = str(self.rhodecode_user.username)

            password = '@'

        parsed_url = urlparse(url.current(qualified=True))

        default_clone_uri = '{scheme}://{user}{pass}{netloc}{path}'

        uri_tmpl = config.get('clone_uri', default_clone_uri)

        uri_tmpl = uri_tmpl.replace('{', '%(').replace('}', ')s')

        decoded_path = safe_unicode(urllib.unquote(parsed_url.path))

        uri_dict = {

           'user': urllib.quote(username),

           'pass': password,

           'scheme': parsed_url.scheme,

           'netloc': parsed_url.netloc,

        }

        # generate another clone url by id

        uri_dict.update(

         {'path': decoded_path.replace(repo_name, '_%s' % c.dbrepo.repo_id)}

        )

        uri_id = uri_tmpl % uri_dict

        c.clone_repo_url = uri

        c.clone_repo_url_id = uri_id

        c.repo_tags = OrderedDict()

        for name, hash_ in c.rhodecode_repo.tags.items()[:10]:

            try:

                c.repo_tags[name] = c.rhodecode_repo.get_changeset(hash_)

            except ChangesetError:

                c.repo_tags[name] = EmptyChangeset(hash_)

        c.repo_branches = OrderedDict()

        for name, hash_ in c.rhodecode_repo.branches.items()[:10]:

            try:

                c.repo_branches[name] = c.rhodecode_repo.get_changeset(hash_)

            except ChangesetError:

                c.repo_branches[name] = EmptyChangeset(hash_)

        td = date.today() + timedelta(days=1)

        td_1m = td - timedelta(days=calendar.mdays[td.month])

        td_1y = td - timedelta(days=365)

        ts_min_m = mktime(td_1m.timetuple())

        ts_min_y = mktime(td_1y.timetuple())

        ts_max_y = mktime(td.timetuple())

        if dbrepo.enable_statistics:

            c.show_stats = True

            c.no_data_msg = _('No data loaded yet')

            recurse_limit = 500  # don't recurse more than 500 times when parsing

            run_task(get_commits_stats, c.dbrepo.repo_name, ts_min_y,

                     ts_max_y, recurse_limit)

        else:

            c.show_stats = False

            c.no_data_msg = _('Statistics are disabled for this repository')

        c.ts_min = ts_min_m

        c.ts_max = ts_max_y

        stats = self.sa.query(Statistics)\

            .filter(Statistics.repository == dbrepo)\

            .scalar()

        c.stats_percentage = 0

        if stats and stats.languages:

            c.no_data = False is dbrepo.enable_statistics

            lang_stats_d = json.loads(stats.languages)

            c.commit_data = stats.commit_activity

            c.overview_data = stats.commit_activity_combined

            lang_stats = ((x, {"count": y,

                               "desc": LANGUAGES_EXTENSIONS_MAP.get(x)})

                          for x, y in lang_stats_d.items())

            c.trending_languages = json.dumps(

                sorted(lang_stats, reverse=True, key=lambda k: k[1])[:10]

            )

            last_rev = stats.stat_on_revision + 1

            c.repo_last_rev = c.rhodecode_repo.count()\

                if c.rhodecode_repo.revisions else 0

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

                pass

            else:

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

                                                c.repo_last_rev) * 100)

        else:

            c.commit_data = json.dumps({})

            c.overview_data = json.dumps([[ts_min_y, 0], [ts_max_y, 10]])

            c.trending_languages = json.dumps({})

            c.no_data = True

        c.enable_downloads = dbrepo.enable_downloads

        if c.enable_downloads:

            c.download_options = self._get_download_links(c.rhodecode_repo)

        c.readme_data, c.readme_file = \

            self.__get_readme_data(c.rhodecode_db_repo)

        return render('summary/summary.html')

    @NotAnonymous()

    @jsonify

    def repo_size(self, repo_name):

        if request.is_xhr:

            return c.rhodecode_db_repo._repo_size()

        else:

            raise HTTPBadRequest()

    def __get_readme_data(self, db_repo):

        repo_name = db_repo.repo_name

        @cache_region('long_term')

        def _get_readme_from_cache(key):

            readme_data = None

            readme_file = None

            log.debug('Looking for README file')

            try:

                # get's the landing revision! or tip if fails

                cs = db_repo.get_landing_changeset()

                if isinstance(cs, EmptyChangeset):

                    raise EmptyRepositoryError()

                renderer = MarkupRenderer()

                for f in README_FILES:

                    try:

                        readme = cs.get_node(f)

                        if not isinstance(readme, FileNode):

                            continue

                        readme_file = f

                        log.debug('Found README file `%s` rendering...' %

                                  readme_file)

                        readme_data = renderer.render(readme.content, f)

                        break

                    except NodeDoesNotExistError:

                        continue

            except ChangesetError:

                log.error(traceback.format_exc())

                pass

            except EmptyRepositoryError:

                pass

            except Exception:

                log.error(traceback.format_exc())

            return readme_data, readme_file

        key = repo_name + '_README'

        inv = CacheInvalidation.invalidate(key)

        if inv is not None:

            region_invalidate(_get_readme_from_cache, None, key)

            CacheInvalidation.set_valid(inv.cache_key)

        return _get_readme_from_cache(key)

    def _get_download_links(self, repo):

        download_l = []

        branches_group = ([], _("Branches"))

        tags_group = ([], _("Tags"))

        for name, chs in c.rhodecode_repo.branches.items():

            #chs = chs.split(':')[-1]

            branches_group[0].append((chs, name),)

        download_l.append(branches_group)

        for name, chs in c.rhodecode_repo.tags.items():

            #chs = chs.split(':')[-1]

            tags_group[0].append((chs, name),)

        download_l.append(tags_group)

        return download_l

<%inherit file="/base/base.html"/>

<%def name="title()">

    ${_('%s Summary') % c.repo_name} · ${c.rhodecode_name}

</%def>

<%def name="breadcrumbs_links()">

    ${_('Summary')}

</%def>

<%def name="page_nav()">

    ${self.menu('repositories')}

</%def>

<%def name="head_extra()">

<link href="${h.url('atom_feed_home',repo_name=c.dbrepo.repo_name,api_key=c.rhodecode_user.api_key)}" rel="alternate" title="${_('repo %s ATOM feed') % c.repo_name}" type="application/atom+xml" />

<link href="${h.url('rss_feed_home',repo_name=c.dbrepo.repo_name,api_key=c.rhodecode_user.api_key)}" rel="alternate" title="${_('repo %s RSS feed') % c.repo_name}" type="application/rss+xml" />

</%def>

<%def name="main()">

${self.context_bar('summary')}

    <%

    summary = lambda n:{False:'summary-short'}.get(n)

    %>

    %if c.show_stats:

        <div class="box box-left">

    %else:

        <div class="box">

    %endif

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}

    </div>

    <!-- end box / title -->

    <div class="form">

      <div id="summary" class="fields">

             <div class="field">

              <div class="label-summary">

                  <label>${_('Name')}:</label>

              </div>

              <div class="input ${summary(c.show_stats)}">

                   ## locking icon

                    %if c.rhodecode_db_repo.enable_locking:

                      %if c.rhodecode_db_repo.locked[0]:

                        <span class="locking_locked tooltip" title="${_('Repository locked by %s') % h.person_by_id(c.rhodecode_db_repo.locked[0])}"></span>

                      %else:

                        <span class="locking_unlocked tooltip" title="${_('Repository unlocked')}"></span>

                      %endif

                    %endif

                 ##REPO TYPE

                 %if h.is_hg(c.dbrepo):

                   <img style="margin-bottom:2px" class="icon" title="${_('Mercurial repository')}" alt="${_('Mercurial repository')}" src="${h.url('/images/icons/hgicon.png')}"/>

                 %endif

                 %if h.is_git(c.dbrepo):

                   <img style="margin-bottom:2px" class="icon" title="${_('Git repository')}" alt="${_('Git repository')}" src="${h.url('/images/icons/giticon.png')}"/>

                 %endif

                 ##PUBLIC/PRIVATE

                 %if c.dbrepo.private:

                    <img style="margin-bottom:2px" class="icon" title="${_('private repository')}" alt="${_('private repository')}" src="${h.url('/images/icons/lock.png')}"/>

                 %else:

                    <img style="margin-bottom:2px" class="icon" title="${_('public repository')}" alt="${_('public repository')}" src="${h.url('/images/icons/lock_open.png')}"/>

                 %endif

                  ##REPO NAME

                  <span class="repo_name" title="${_('Non changable ID %s') % c.dbrepo.repo_id}">${h.repo_link(c.dbrepo.groups_and_repo)}</span>

                  ##FORK

                  %if c.dbrepo.fork:

                    <div style="margin-top:5px;clear:both">

                    <a href="${h.url('summary_home',repo_name=c.dbrepo.fork.repo_name)}"><img class="icon" alt="${_('public')}" title="${_('Fork of')} ${c.dbrepo.fork.repo_name}" src="${h.url('/images/icons/arrow_divide.png')}"/>

                        ${_('Fork of')} ${c.dbrepo.fork.repo_name}

                    </a>

                    </div>

                  %endif

                  ##REMOTE

                  %if c.dbrepo.clone_uri:

                    <div style="margin-top:5px;clear:both">

                    <a href="${h.url(str(h.hide_credentials(c.dbrepo.clone_uri)))}"><img class="icon" alt="${_('remote clone')}" title="${_('Clone from')} ${h.hide_credentials(c.dbrepo.clone_uri)}" src="${h.url('/images/icons/connect.png')}"/>

                        ${_('Clone from')} ${h.hide_credentials(c.dbrepo.clone_uri)}

                    </a>

                    </div>

                  %endif

              </div>

             </div>

             <div class="field">

              <div class="label-summary">

                  <label>${_('Description')}:</label>

              </div>

              %if c.visual.stylify_metatags:

                <div class="input ${summary(c.show_stats)} desc">${h.urlify_text(h.desc_stylize(c.dbrepo.description))}</div>

              %else:

                <div class="input ${summary(c.show_stats)} desc">${h.urlify_text(c.dbrepo.description)}</div>

              %endif

             </div>

             <div class="field">

              <div class="label-summary">

                  <label>${_('Contact')}:</label>

              </div>

              <div class="input ${summary(c.show_stats)}">

                  <div class="gravatar">

                      <img alt="gravatar" src="${h.gravatar_url(c.dbrepo.user.email)}"/>

                  </div>

                      ${_('Username')}: ${c.dbrepo.user.username}<br/>

                      ${_('Name')}: ${c.dbrepo.user.name} ${c.dbrepo.user.lastname}<br/>

                      ${_('Email')}: <a href="mailto:${c.dbrepo.user.email}">${c.dbrepo.user.email}</a>

              </div>

             </div>

             <div class="field">

              <div class="label-summary">

                  <label>${_('Clone url')}:</label>

              </div>

              <div class="input ${summary(c.show_stats)}">

                  <div style="display:none" id="clone_by_name" class="ui-btn clone">${_('Show by Name')}</div>

                  <div id="clone_by_id" class="ui-btn clone">${_('Show by ID')}</div>

              </div>

             </div>

             <div class="field">

              <div class="label-summary">

                  <label>${_('Trending files')}:</label>

              </div>

              <div class="input ${summary(c.show_stats)}">

                %if c.show_stats:

                <div id="lang_stats"></div>

                %else:

                   ${_('Statistics are disabled for this repository')}

                   %if h.HasPermissionAll('hg.admin')('enable stats on from summary'):

                        ${h.link_to(_('enable'),h.url('edit_repo',repo_name=c.repo_name),class_="ui-btn")}

                   %endif

                %endif

              </div>

             </div>

             <div class="field">

              <div class="label-summary">

                  <label>${_('Download')}:</label>

              </div>

              <div class="input ${summary(c.show_stats)}">

                %if len(c.rhodecode_repo.revisions) == 0:

                  ${_('There are no downloads yet')}

                %elif not c.enable_downloads:

                  ${_('Downloads are disabled for this repository')}

                    %if h.HasPermissionAll('hg.admin')('enable downloads on from summary'):

                        ${h.link_to(_('enable'),h.url('edit_repo',repo_name=c.repo_name),class_="ui-btn")}

                    %endif

                %else:

                    ${h.select('download_options',c.rhodecode_repo.get_changeset().raw_id,c.download_options)}

                         <span id="${'zip_link'}">${h.link_to(_('Download as zip'), h.url('files_archive_home',repo_name=c.dbrepo.repo_name,fname='tip.zip'),class_="archive_icon ui-btn")}</span>

                    <span style="vertical-align: bottom">

                        <input id="archive_subrepos" type="checkbox" name="subrepos" />

                        <label for="archive_subrepos" class="tooltip" title="${h.tooltip(_('Check this to download archive with subrepos'))}" >${_('with subrepos')}</label>

                    </span>

                %endif

              </div>

             </div>

        </div>

        <div id="summary-menu-stats">

          <ul>

            <li>

               <a class="followers" title="${_('Followers')}" href="${h.url('repo_followers_home',repo_name=c.repo_name)}">

                ${_('Followers')}

                <span style="float:right" id="current_followers_count">${c.repository_followers}</span>

              </a>

            </li>

            <li>

              <a class="forks" title="${_('Forks')}" href="${h.url('repo_forks_home',repo_name=c.repo_name)}">

                ${_('Forks')}

                <span style="float:right">${c.repository_forks}</span>

              </a>

            </li>

             %if h.HasRepoPermissionAll('repository.admin')(c.repo_name):

             <li>

                  ${h.link_to(_('Settings'),h.url('edit_repo',repo_name=c.repo_name),class_='settings')}

            </li>

            %endif

            <li>

            %if c.rhodecode_user.username != 'default':

              ${h.link_to(_('Feed'),h.url('atom_feed_home',repo_name=c.dbrepo.repo_name,api_key=c.rhodecode_user.api_key),class_='feed')}

            %else:

              ${h.link_to(_('Feed'),h.url('atom_feed_home',repo_name=c.dbrepo.repo_name),class_='feed')}

            %endif

            </li>

            %if c.rhodecode_user.username != 'default':

            <li class="repo_size">

              <a href="#" class="repo-size" onclick="javascript:showRepoSize('repo_size_2','${c.dbrepo.repo_name}','${str(h.get_token())}')">${_('Repository Size')}</a>

              <span id="repo_size_2"></span>

            </li>

            %endif

          </ul>

        </div>

    </div>

</div>

%if c.show_stats:

<div class="box box-right"  style="min-height:455px">

    <!-- box / title -->

    <div class="title">

        <h5>${_('Commit activity by day / author')}</h5>

    </div>

    <div class="graph">

         <div style="padding:0 10px 10px 17px;">

         %if c.no_data:

           ${c.no_data_msg}

           %if h.HasPermissionAll('hg.admin')('enable stats on from summary'):

                ${h.link_to(_('enable'),h.url('edit_repo',repo_name=c.repo_name),class_="ui-btn")}

           %endif

        %else:

            ${_('Stats gathered: ')} ${c.stats_percentage}%

        %endif

        </div>

        <div id="commit_history" style="width:450px;height:300px;float:left"></div>

        <div style="clear: both;height: 10px"></div>

        <div id="overview" style="width:450px;height:100px;float:left"></div>

        <div id="legend_data" style="clear:both;margin-top:10px;">

            <div id="legend_container"></div>

            <div id="legend_choices">

                <table id="legend_choices_tables" class="noborder" style="font-size:smaller;color:#545454"></table>

            </div>

        </div>

    </div>

</div>

%endif

<div class="box">

    <div class="title">

        <div class="breadcrumbs">

        %if c.repo_changesets:

            ${h.link_to(_('Latest changes'),h.url('changelog_home',repo_name=c.repo_name))}

        %else:

            ${_('Quick start')}

         %endif

        </div>

    </div>

    <div class="table">

        <div id="shortlog_data">

            <%include file='../shortlog/shortlog_data.html'/>

        </div>

    </div>

</div>

%if c.readme_data:

<div id="readme" class="anchor">

<div class="box" style="background-color: #FAFAFA">

    <div class="title" title="${_("Readme file at revision '%s'" % c.rhodecode_db_repo.landing_rev)}">

        <div class="breadcrumbs">

            <a href="${h.url('files_home',repo_name=c.repo_name,revision='tip',f_path=c.readme_file)}">${c.readme_file}</a>

            <a class="permalink" href="#readme" title="${_('Permalink to this readme')}">&para;</a>

        </div>

    </div>

    <div class="readme">

      <div class="readme_box">

        ${c.readme_data|n}

      </div>

    </div>

</div>

</div>

%endif

<script type="text/javascript">

var clone_url = 'clone_url';

YUE.on(clone_url,'click',function(e){

    if(YUD.hasClass(clone_url,'selected')){

        return

    }

    else{

        YUD.addClass(clone_url,'selected');

        YUD.get(clone_url).select();

    }

})

YUE.on('clone_by_name','click',function(e){

    // show url by name and hide name button

    YUD.setStyle('clone_url','display','');

    YUD.setStyle('clone_by_name','display','none');

    // hide url by id and show name button

    YUD.setStyle('clone_by_id','display','');

    YUD.setStyle('clone_url_id','display','none');

})

YUE.on('clone_by_id','click',function(e){

    // show url by id and hide id button

    YUD.setStyle('clone_by_id','display','none');

    YUD.setStyle('clone_url_id','display','');

    // hide url by name and show id button

    YUD.setStyle('clone_by_name','display','');

    YUD.setStyle('clone_url','display','none');

})

var tmpl_links = {};

%for cnt,archive in enumerate(c.rhodecode_repo._get_archives()):

  tmpl_links["${archive['type']}"] = '${h.link_to('__NAME__', h.url('files_archive_home',repo_name=c.dbrepo.repo_name, fname='__CS__'+archive['extension'],subrepos='__SUB__'),class_='archive_icon ui-btn')}';

%endfor

YUE.on(['download_options','archive_subrepos'],'change',function(e){

   var sm = YUD.get('download_options');

   var new_cs = sm.options[sm.selectedIndex];

   for(k in tmpl_links){

       var s = YUD.get(k+'_link');

       if(s){

         var title_tmpl = "${_('Download %s as %s') % ('__CS_NAME__','__CS_EXT__')}";

         title_tmpl= title_tmpl.replace('__CS_NAME__',new_cs.text);

         title_tmpl = title_tmpl.replace('__CS_EXT__',k);

         var url = tmpl_links[k].replace('__CS__',new_cs.value);

         var subrepos = YUD.get('archive_subrepos').checked;

         url = url.replace('__SUB__',subrepos);

         url = url.replace('__NAME__',title_tmpl);

         s.innerHTML = url

       }

   }

});

</script>

%if c.show_stats:

<script type="text/javascript">

var data = ${c.trending_languages|n};

var total = 0;

var no_data = true;

var tbl = document.createElement('table');

tbl.setAttribute('class','trending_language_tbl');

var cnt = 0;

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

    total+= data[i][1].count;

}

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

    cnt += 1;

    no_data = false;

    var hide = cnt>2;

    var tr = document.createElement('tr');

    if (hide){

        tr.setAttribute('style','display:none');

        tr.setAttribute('class','stats_hidden');

    }

    var k = data[i][0];

    var obj = data[i][1];

    var percentage = Math.round((obj.count/total*100),2);

    var td1 = document.createElement('td');

    td1.width = 150;

    var trending_language_label = document.createElement('div');

    trending_language_label.innerHTML = obj.desc+" ("+k+")";

    td1.appendChild(trending_language_label);

    var td2 = document.createElement('td');

    td2.setAttribute('style','padding-right:14px !important');

    var trending_language = document.createElement('div');

    var nr_files = obj.count+" ${_('files')}";

    trending_language.title = k+" "+nr_files;

    if (percentage>22){

        trending_language.innerHTML = "<b style='font-size:0.8em'>"+percentage+"% "+nr_files+ "</b>";

    }

    else{

        trending_language.innerHTML = "<b style='font-size:0.8em'>"+percentage+"%</b>";

    }

    trending_language.setAttribute("class", 'trending_language top-right-rounded-corner bottom-right-rounded-corner');

    trending_language.style.width=percentage+"%";

    td2.appendChild(trending_language);

    tr.appendChild(td1);

    tr.appendChild(td2);

    tbl.appendChild(tr);

    if(cnt == 3){

        var show_more = document.createElement('tr');

        var td = document.createElement('td');

        lnk = document.createElement('a');

        lnk.href='#';

        lnk.innerHTML = "${_('show more')}";

        lnk.id='code_stats_show_more';

        td.appendChild(lnk);

        show_more.appendChild(td);

        show_more.appendChild(document.createElement('td'));

        tbl.appendChild(show_more);

    }

}

YUD.get('lang_stats').appendChild(tbl);

YUE.on('code_stats_show_more','click',function(){

    l = YUD.getElementsByClassName('stats_hidden')

    for (e in l){

        YUD.setStyle(l[e],'display','');

    };

    YUD.setStyle(YUD.get('code_stats_show_more'),

            'display','none');

});

</script>

<script type="text/javascript">

/**

 * Plots summary graph

 *

 * @class SummaryPlot

 * @param {from} initial from for detailed graph

 * @param {to} initial to for detailed graph

 * @param {dataset}

 * @param {overview_dataset}

 */

function SummaryPlot(from,to,dataset,overview_dataset) {

    var initial_ranges = {

        "xaxis":{

            "from":from,

            "to":to,

        },

    };

    var dataset = dataset;

    var overview_dataset = [overview_dataset];

    var choiceContainer = YUD.get("legend_choices");

    var choiceContainerTable = YUD.get("legend_choices_tables");

    var plotContainer = YUD.get('commit_history');

    var overviewContainer = YUD.get('overview');

    var plot_options = {

        bars: {show:true,align:'center',lineWidth:4},

        legend: {show:true, container:"legend_container"},

        points: {show:true,radius:0,fill:false},

        yaxis: {tickDecimals:0,},

        xaxis: {

            mode: "time",

            timeformat: "%d/%m",

            min:from,

            max:to,

        },

        grid: {

            hoverable: true,

            clickable: true,

            autoHighlight:true,

            color: "#999"

        },

        //selection: {mode: "x"}

    };

    var overview_options = {

        legend:{show:false},

        bars: {show:true,barWidth: 2,},

        shadowSize: 0,

        xaxis: {mode: "time", timeformat: "%d/%m/%y",},

        yaxis: {ticks: 3, min: 0,tickDecimals:0,},

        grid: {color: "#999",},

        selection: {mode: "x"}

    };

    /**

    *get dummy data needed in few places

    */

    function getDummyData(label){

        return {"label":label,

         "data":[{"time":0,

             "commits":0,

                 "added":0,

                 "changed":0,

                 "removed":0,

            }],

            "schema":["commits"],

            "color":'#ffffff',

        }

    }

    /**

     * generate checkboxes accordindly to data

     * @param keys

     * @returns

     */

    function generateCheckboxes(data) {

        //append checkboxes

        var i = 0;

        choiceContainerTable.innerHTML = '';

        for(var pos in data) {

            data[pos].color = i;

            i++;

            if(data[pos].label != ''){

                choiceContainerTable.innerHTML +=

                    '<tr><td><input type="checkbox" id="id_user_{0}" name="{0}" checked="checked" /> \

                     <label for="id_user_{0}">{0}</label></td></tr>'.format(data[pos].label);

            }

        }

    }

    /**

     * ToolTip show

     */

    function showTooltip(x, y, contents) {

        var div=document.getElementById('tooltip');

        if(!div) {

            div = document.createElement('div');

            div.id="tooltip";

            div.style.position="absolute";

            div.style.border='1px solid #fdd';

            div.style.padding='2px';

            div.style.backgroundColor='#fee';

            document.body.appendChild(div);

        }

        YUD.setStyle(div, 'opacity', 0);

        div.innerHTML = contents;

        div.style.top=(y + 5) + "px";

        div.style.left=(x + 5) + "px";

        var anim = new YAHOO.util.Anim(div, {opacity: {to: 0.8}}, 0.2);

        anim.animate();

    }

    /**

     * This function will detect if selected period has some changesets

       for this user if it does this data is then pushed for displaying

       Additionally it will only display users that are selected by the checkbox

    */

    function getDataAccordingToRanges(ranges) {

        var data = [];

        var new_dataset = {};

        var keys = [];

        var max_commits = 0;

        for(var key in dataset){

            for(var ds in dataset[key].data){

                commit_data = dataset[key].data[ds];

                if (commit_data.time >= ranges.xaxis.from && commit_data.time <= ranges.xaxis.to){

                    if(new_dataset[key] === undefined){

                        new_dataset[key] = {data:[],schema:["commits"],label:key};

                    }

                    new_dataset[key].data.push(commit_data);

                }

            }

            if (new_dataset[key] !== undefined){

                data.push(new_dataset[key]);

            }

        }

        if (data.length > 0){

            return data;

        }

        else{

            //just return dummy data for graph to plot itself

            return [getDummyData('')];

        }

    }

    /**

    * redraw using new checkbox data

    */

    function plotchoiced(e,args){

        var cur_data = args[0];

        var cur_ranges = args[1];

        var new_data = [];

        var inputs = choiceContainer.getElementsByTagName("input");

        //show only checked labels

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

            var checkbox_key = inputs[i].name;

            if(inputs[i].checked){

                for(var d in cur_data){

                    if(cur_data[d].label == checkbox_key){

                        new_data.push(cur_data[d]);

                    }

                }

            }

            else{

                //push dummy data to not hide the label

                new_data.push(getDummyData(checkbox_key));

            }

        }

        var new_options = YAHOO.lang.merge(plot_options, {

            xaxis: {

                min: cur_ranges.xaxis.from,

                max: cur_ranges.xaxis.to,

                mode:"time",

                timeformat: "%d/%m",

            },

        });

        if (!new_data){

            new_data = [[0,1]];

        }

        // do the zooming

       plot = YAHOO.widget.Flot(plotContainer, new_data, new_options);

       plot.subscribe("plotselected", plotselected);

       //resubscribe plothover

       plot.subscribe("plothover", plothover);

       // don't fire event on the overview to prevent eternal loop

       overview.setSelection(cur_ranges, true);

    }