"""Helper functions

Consists of functions to typically be used within templates, but also

available to Controllers. This module is available to both as 'h'.

"""

import random

import hashlib

from pygments.formatters import HtmlFormatter

from pygments import highlight as code_highlight

from pylons import url, app_globals as g

from pylons.i18n.translation import _, ungettext

from vcs.utils.annotate import annotate_highlight

from webhelpers.html import literal, HTML, escape

from webhelpers.html.tools import *

from webhelpers.html.builder import make_tag

from webhelpers.html.tags import auto_discovery_link, checkbox, css_classes, \

    end_form, file, form, hidden, image, javascript_link, link_to, link_to_if, \

    link_to_unless, ol, required_legend, select, stylesheet_link, submit, text, \

    password, textarea, title, ul, xml_declaration, radio

from webhelpers.html.tools import auto_link, button_to, highlight, js_obfuscate, \

    mail_to, strip_links, strip_tags, tag_re

from webhelpers.number import format_byte_size, format_bit_size

from webhelpers.pylonslib import Flash as _Flash

from webhelpers.pylonslib.secure_form import secure_form

from webhelpers.text import chop_at, collapse, convert_accented_entities, \

    convert_misc_entities, lchop, plural, rchop, remove_formatting, \

    replace_whitespace, urlify, truncate, wrap_paragraphs

from webhelpers.date import time_ago_in_words

from webhelpers.html.tags import _set_input_attrs, _set_id_attr, \

    convert_boolean_attrs, NotGiven

def _reset(name, value=None, id=NotGiven, type="reset", **attrs):

    """Reset button

    """

    _set_input_attrs(attrs, type, name, value)

    _set_id_attr(attrs, id, name)

    convert_boolean_attrs(attrs, ["disabled"])

    return HTML.input(**attrs)

reset = _reset

def get_token():

    """Return the current authentication token, creating one if one doesn't

    already exist.

    """

    token_key = "_authentication_token"

    from pylons import session

    if not token_key in session:

        try:

            token = hashlib.sha1(str(random.getrandbits(128))).hexdigest()

        except AttributeError: # Python < 2.4

            token = hashlib.sha1(str(random.randrange(2 ** 128))).hexdigest()

        session[token_key] = token

        if hasattr(session, 'save'):

            session.save()

    return session[token_key]

class _GetError(object):

    """Get error from form_errors, and represent it as span wrapped error

    message

    :param field_name: field to fetch errors for

    :param form_errors: form errors dict

    """

    def __call__(self, field_name, form_errors):

        tmpl = """<span class="error_msg">%s</span>"""

        if form_errors and form_errors.has_key(field_name):

            return literal(tmpl % form_errors.get(field_name))

get_error = _GetError()

def recursive_replace(str, replace=' '):

    """Recursive replace of given sign to just one instance

    :param str: given string

    :param replace: char to find and replace multiple instances

    Examples::

    >>> recursive_replace("Mighty---Mighty-Bo--sstones",'-')

    'Mighty-Mighty-Bo-sstones'

    """

    if str.find(replace * 2) == -1:

        return str

    else:

        str = str.replace(replace * 2, replace)

        return recursive_replace(str, replace)

class _ToolTip(object):

    def __call__(self, tooltip_title, trim_at=50):

        """

        Special function just to wrap our text into nice formatted autowrapped

        text

        :param tooltip_title:

        """

        return wrap_paragraphs(escape(tooltip_title), trim_at)\

                       .replace('\n', '<br/>')

    def activate(self):

        """

        js = '''

        YAHOO.util.Event.onDOMReady(function(){

            function toolTipsId(){

                var ids = [];

                var tts = YAHOO.util.Dom.getElementsByClassName('tooltip');

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

                    if (!tts[i].id){

                        tts[i].id='tt'+i*100;

                    }

                    ids.push(tts[i].id);

                }

                return ids        

            };

            var myToolTips = new YAHOO.widget.Tooltip("tooltip", { 

                context: toolTipsId(),

                monitorresize:false,

                xyoffset :[0,0],

                autodismissdelay:300000,

                hidedelay:5,

                showdelay:20,

            });

            // Set the text for the tooltip just before we display it. Lazy method

            myToolTips.contextTriggerEvent.subscribe( 

                 function(type, args) { 

                        var context = args[0]; 

                        // positioning of tooltip

                        var context_w = context.offsetWidth;

                        var context_h = context.offsetHeight;

                        var pos_x = YAHOO.util.Dom.getX(context);

                        var pos_y = YAHOO.util.Dom.getY(context);

                        var xy_pos = [0,0];

                        switch (display_strategy){

                            case 'top':

                                var cur_x = (pos_x+context_w/2)-(tt_w/2);

                                xy_pos = [cur_x,cur_y];                                

                                break;

                            case 'bottom':

                                var cur_x = (pos_x+context_w/2)-(tt_w/2);

                                var cur_y = pos_y+context_h+4;

                                xy_pos = [cur_x,cur_y];                                

                                break;

                            case 'left':

                                var cur_x = (pos_x-tt_w-4);

                                var cur_y = pos_y-((tt_h/2)-context_h/2);

                                xy_pos = [cur_x,cur_y];                                

                                break;

                            case 'right':

                                var cur_x = (pos_x+context_w+4);

                                var cur_y = pos_y-((tt_h/2)-context_h/2);

                                xy_pos = [cur_x,cur_y];                                

                                break;

                             default:

                                var cur_x = (pos_x+context_w/2)-(tt_w/2);

                                var cur_y = pos_y-tt_h-4;

                                xy_pos = [cur_x,cur_y];                                

                                break;                             

                        }

                        this.cfg.setProperty("xy",xy_pos);

                  });

            //Mouse out 

            myToolTips.contextMouseOutEvent.subscribe(

                function(type, args) {

                    var context = args[0];

                });

        });

        '''

        return literal(js)

tooltip = _ToolTip()

class _FilesBreadCrumbs(object):

    def __call__(self, repo_name, rev, paths):

        url_l = [link_to(repo_name, url('files_home',

                                        repo_name=repo_name,

                                        revision=rev, f_path=''))]

        paths_l = paths.split('/')

        for cnt, p in enumerate(paths_l):

            if p != '':

                url_l.append(link_to(p, url('files_home',

                                            repo_name=repo_name,

                                            revision=rev,

                                            f_path='/'.join(paths_l[:cnt + 1]))))

        return literal('/'.join(url_l))

files_breadcrumbs = _FilesBreadCrumbs()

class CodeHtmlFormatter(HtmlFormatter):

    def wrap(self, source, outfile):

        return self._wrap_div(self._wrap_pre(self._wrap_code(source)))

    def _wrap_code(self, source):

        for cnt, it in enumerate(source):

            i, t = it

            t = '<div id="#S-%s">%s</div>' % (cnt + 1, t)

            yield i, t

def pygmentize(filenode, **kwargs):

    """pygmentize function using pygments

    :param filenode:

    """

    return literal(code_highlight(filenode.content,

                                  filenode.lexer, CodeHtmlFormatter(**kwargs)))

def pygmentize_annotation(filenode, **kwargs):

    """pygmentize function for annotation

    :param filenode:

    """

    color_dict = {}

    def gen_color():

        """generator for getting 10k of evenly distibuted colors using hsv color

        and golden ratio.

        """

        import colorsys

        n = 10000

        golden_ratio = 0.618033988749895

        h = 0.22717784590367374

        #generate 10k nice web friendly colors in the same order

        for c in xrange(n):

            h += golden_ratio

            h %= 1

            HSV_tuple = [h, 0.95, 0.95]

            RGB_tuple = colorsys.hsv_to_rgb(*HSV_tuple)

            yield map(lambda x:str(int(x * 256)), RGB_tuple)

    cgenerator = gen_color()

    def get_color_string(cs):

        if color_dict.has_key(cs):

            col = color_dict[cs]

        else:

            col = color_dict[cs] = cgenerator.next()

        return "color: rgb(%s)! important;" % (', '.join(col))

    def url_func(changeset):

        tooltip_html = "<div style='font-size:0.8em'><b>Author:</b>" + \

        " %s<br/><b>Date:</b> %s</b><br/><b>Message:</b> %s<br/></div>"

        tooltip_html = tooltip_html % (changeset.author,

                                               changeset.date,

                                               tooltip(changeset.message))

        lnk_format = '%5s:%s' % ('r%s' % changeset.revision,

                                 short_id(changeset.raw_id))

        uri = link_to(

                lnk_format,

                url('changeset_home', repo_name=changeset.repository.name,

                    revision=changeset.raw_id),

                style=get_color_string(changeset.raw_id),

                class_='tooltip',

              )

        uri += '\n'

        return uri

    return literal(annotate_highlight(filenode, url_func, **kwargs))

def repo_name_slug(value):

    """Return slug of name of repository

    This function is called on each creation/modification

    of repository to prevent bad names in repo

    """

    slug = remove_formatting(value)

    slug = strip_tags(slug)

    for c in """=[]\;'"<>,/~!@#$%^&*()+{}|: """:

        slug = slug.replace(c, '-')

    slug = recursive_replace(slug, '-')

    slug = collapse(slug, '-')

    return slug

def get_changeset_safe(repo, rev):

    from vcs.backends.base import BaseRepository

    from vcs.exceptions import RepositoryError

    if not isinstance(repo, BaseRepository):

        raise Exception('You must pass an Repository '

                        'object as first argument got %s', type(repo))

    try:

        cs = repo.get_changeset(rev)

    except RepositoryError:

        from rhodecode.lib.utils import EmptyChangeset

        cs = EmptyChangeset()

    return cs

flash = _Flash()

#==============================================================================

# MERCURIAL FILTERS available via h.

#==============================================================================

from mercurial import util

from mercurial.templatefilters import person as _person

def _age(curdate):

    """turns a datetime into an age string."""

    if not curdate:

        return ''

    from datetime import timedelta, datetime

    agescales = [("year", 3600 * 24 * 365),

                 ("month", 3600 * 24 * 30),

                 ("day", 3600 * 24),

                 ("hour", 3600),

                 ("minute", 60),

                 ("second", 1), ]

    age = datetime.now() - curdate

    age_seconds = (age.days * agescales[2][1]) + age.seconds

    pos = 1

    for scale in agescales:

        if scale[1] <= age_seconds:

            if pos == 6:pos = 5

            return time_ago_in_words(curdate, agescales[pos][0]) + ' ' + _('ago')

        pos += 1

    return _('just now')

age = lambda  x:_age(x)

capitalize = lambda x: x.capitalize()

email = util.email

email_or_none = lambda x: util.email(x) if util.email(x) != x else None

person = lambda x: _person(x)

short_id = lambda x: x[:12]

def bool2icon(value):

    """Returns True/False values represented as small html image of true/false

    icons

    :param value: bool value

    """

    if value is True:

        return HTML.tag('img', src="/images/icons/accept.png", alt=_('True'))

    if value is False:

        return HTML.tag('img', src="/images/icons/cancel.png", alt=_('False'))

    return value

def action_parser(user_log):

    """This helper will map the specified string action into translated

    fancy names with icons and links

    :param user_log: user log instance

    """

    action = user_log.action

    action_params = ' '

    x = action.split(':')

    if len(x) > 1:

        action, action_params = x

    def get_cs_links():

        if action == 'push':

            revs_limit = 5 #display this amount always

            revs_top_limit = 50 #show upto this amount of changesets hidden

            revs = action_params.split(',')

            repo_name = user_log.repository.repo_name

            from rhodecode.model.scm import ScmModel

            message = lambda rev: get_changeset_safe(ScmModel().get(repo_name),

                                                     rev).message

            cs_links = " " + ', '.join ([link_to(rev,

                    url('changeset_home',

                    repo_name=repo_name,

                    class_='tooltip') for rev in revs[:revs_limit] ])

            if len(revs) > revs_limit:

                uniq_id = revs[0]

                html_tmpl = ('<span> %s '

                '<a class="show_more" id="_%s" href="#">%s</a> '

                '%s</span>')

                cs_links += html_tmpl % (_('and'), uniq_id, _('%s more') \

                                            % (len(revs) - revs_limit),

                                            _('revisions'))

                html_tmpl = '<span id="%s" style="display:none"> %s </span>'

                cs_links += html_tmpl % (uniq_id, ', '.join([link_to(rev,

                    url('changeset_home',

                    repo_name=repo_name, revision=rev),

                    for rev in revs[revs_limit:revs_top_limit]]))

            return cs_links

        return ''

    def get_fork_name():

        if action == 'user_forked_repo':

            from rhodecode.model.scm import ScmModel

            repo_name = action_params

            repo = ScmModel().get(repo_name)

            if repo is None:

                return repo_name

            return link_to(action_params, url('summary_home',

                                              repo_name=repo.name,),

                                              title=repo.dbrepo.description)

        return ''

    map = {'user_deleted_repo':_('User [deleted] repository'),

           'user_created_repo':_('User [created] repository'),

           'user_forked_repo':_('User [forked] repository as: %s') % get_fork_name(),

           'user_updated_repo':_('User [updated] repository'),

           'admin_deleted_repo':_('Admin [delete] repository'),

           'admin_created_repo':_('Admin [created] repository'),

           'admin_forked_repo':_('Admin [forked] repository'),

           'admin_updated_repo':_('Admin [updated] repository'),

           'push':_('[Pushed] %s') % get_cs_links(),

           'pull':_('[Pulled]'),

           'started_following_repo':_('User [started following] repository'),

           'stopped_following_repo':_('User [stopped following] repository'),

            }

    action_str = map.get(action, action)

    return literal(action_str.replace('[', '<span class="journal_highlight">')\

                   .replace(']', '</span>'))

def action_parser_icon(user_log):

    action = user_log.action

    action_params = None

    x = action.split(':')

    if len(x) > 1:

        action, action_params = x

    tmpl = """<img src="/images/icons/%s" alt="%s"/>"""

    map = {'user_deleted_repo':'database_delete.png',

           'user_created_repo':'database_add.png',

           'user_forked_repo':'arrow_divide.png',

           'user_updated_repo':'database_edit.png',

           'admin_deleted_repo':'database_delete.png',

           'admin_created_repo':'database_add.png',

           'admin_forked_repo':'arrow_divide.png',

           'admin_updated_repo':'database_edit.png',

           'push':'script_add.png',

           'pull':'down_16.png',

           'started_following_repo':'heart_add.png',

           'stopped_following_repo':'heart_delete.png',

            }

    return literal(tmpl % (map.get(action, action), action))

#==============================================================================

# PERMS

#==============================================================================

from rhodecode.lib.auth import HasPermissionAny, HasPermissionAll, \

HasRepoPermissionAny, HasRepoPermissionAll

#==============================================================================

# GRAVATAR URL

#==============================================================================

import hashlib

import urllib

from pylons import request

def gravatar_url(email_address, size=30):

    ssl_enabled = 'https' == request.environ.get('HTTP_X_URL_SCHEME')

    default = 'identicon'

    baseurl_nossl = "http://www.gravatar.com/avatar/"

    baseurl_ssl = "https://secure.gravatar.com/avatar/"

    baseurl = baseurl_ssl if ssl_enabled else baseurl_nossl

    # construct the url

    gravatar_url = baseurl + hashlib.md5(email_address.lower()).hexdigest() + "?"

    gravatar_url += urllib.urlencode({'d':default, 's':str(size)})

    return gravatar_url

def safe_unicode(str):

    """safe unicode function. In case of UnicodeDecode error we try to return

    unicode with errors replace, if this failes we return unicode with 

    string_escape decoding """

    try:

        u_str = unicode(str)

    except UnicodeDecodeError:

        try:

            u_str = unicode(str, 'utf-8', 'replace')

        except UnicodeDecodeError:

            #incase we have a decode error just represent as byte string

            u_str = unicode(str(str).encode('string_escape'))

    return u_str

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

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

<%def name="title()">

    ${_('Permissions administration')} - ${c.rhodecode_name}

</%def>

<%def name="breadcrumbs_links()">

    ${h.link_to(_('Admin'),h.url('admin_home'))} 

    »

    ${_('Permissions')}    

</%def>

<%def name="page_nav()">

	${self.menu('admin')}

</%def>

<%def name="main()">

<div class="box">

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}       

    </div>

    <h3>${_('Default permissions')}</h3>

    ${h.form(url('permission', id='default'),method='put')}

    <div class="form">

        <!-- fields -->

        <div class="fields">

            <div class="field">

                <div class="label label-checkbox">

                    <label for="anonymous">${_('Anonymous access')}:</label>

                </div>

                <div class="checkboxes">

                    <div class="checkbox">

                        ${h.checkbox('anonymous',True)}

                    </div>

                </div>

            </div>        

			<div class="field">

				<div class="label label-select">

					<label for="default_perm">${_('Repository permission')}:</label>

				</div>

				<div class="select">

					${h.select('default_perm','',c.perms_choices)}

		                ${h.checkbox('overwrite_default','true')}

		                <label for="overwrite_default">

		                <span class="tooltip" 

		                ${_('overwrite existing settings')}</span> </label>

				</div>		                

			</div>   

			<div class="field">

		        <div class="label">

		            <label for="default_register">${_('Registration')}:</label>

		        </div>

				<div class="select">

					${h.select('default_register','',c.register_choices)}

				</div>

			</div> 		

             <div class="field">

                <div class="label">

                    <label for="default_create">${_('Repository creation')}:</label>

                </div>

				<div class="select">

					${h.select('default_create','',c.create_choices)}

				</div>

             </div>	

	        <div class="buttons">

	        ${h.submit('set','set',class_="ui-button")}

	        </div>	                                                               

        </div>

    </div>  

    ${h.end_form()}

</div>

</%def>    

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

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

<%def name="title()">

    ${_('Repositories administration')} - ${c.rhodecode_name}

</%def>

<%def name="breadcrumbs_links()">

    ${h.link_to(_('Admin'),h.url('admin_home'))} » ${_('Repositories')}

</%def>

<%def name="page_nav()">

	${self.menu('admin')}

</%def>

<%def name="main()">

<div class="box">

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}

        <ul class="links">

          <li>

            <span>${h.link_to(u'ADD NEW REPOSITORY',h.url('new_repo'))}</span>

          </li>          

        </ul>        

    </div>

    <!-- end box / title -->

    <div class="table">

        <table class="table_disp">

        <tr class="header">

	        <th class="left">${_('Name')}</th>

	        <th class="left">${_('Description')}</th>

	        <th class="left">${_('Last change')}</th>

	        <th class="left">${_('Tip')}</th>

	        <th class="left">${_('Contact')}</th>

            <th class="left">${_('action')}</th>

        </tr>

            %for cnt,repo in enumerate(c.repos_list):

            <tr class="parity${cnt%2}">

                 <td>

                 ## TYPE OF REPO

                 %if repo['repo'].dbrepo.repo_type =='hg':

                   <img class="icon" title="${_('Mercurial repository')}" alt="${_('Mercurial repository')}" src="/images/icons/hgicon.png"/>

                 %elif repo['repo'].dbrepo.repo_type =='git':

                   <img class="icon" title="${_('Git repository')}" alt="${_('Git repository')}" src="/images/icons/giticon.png"/>

                 %else:

                 %endif

                 ## PRIVATE/PUBLIC REPO                  

                 %if repo['repo'].dbrepo.private:

                    <img alt="${_('private')}" src="/images/icons/lock.png"/>

                 %else:

                    <img alt="${_('public')}" src="/images/icons/lock_open.png"/>

                 %endif         

                ${h.link_to(repo['name'],h.url('edit_repo',repo_name=repo['name']))}

	            %if repo['repo'].dbrepo.fork:

	            	<a href="${h.url('summary_home',repo_name=repo['repo'].dbrepo.fork.repo_name)}">

	            	<img class="icon" alt="${_('public')}"

	            	title="${_('Fork of')} ${repo['repo'].dbrepo.fork.repo_name}" 

	            	src="/images/icons/arrow_divide.png"/></a>

	            %endif                

                </td>

				<td title="${repo['description']}">${h.truncate(repo['description'],60)}</td>

	            <td>${h.age(repo['last_change'])}</td>

	            <td>

	            	%if repo['rev']>=0:

	            	${h.link_to('r%s:%s' % (repo['rev'],h.short_id(repo['tip'])),

	                h.url('changeset_home',repo_name=repo['name'],revision=repo['tip']),

	                class_="tooltip",

	            	%else:

	            		${_('No changesets yet')}

	            	%endif    

	            </td>

	            <td title="${repo['contact']}">${h.person(repo['contact'])}</td>

                <td>

                  ${h.form(url('repo', repo_name=repo['name']),method='delete')}

                    ${h.submit('remove_%s' % repo['name'],'delete',class_="delete_icon action_button",onclick="return confirm('Confirm to delete this repository');")}

                  ${h.end_form()}

                </td>

            </tr>

            %endfor

        </table>

    </div>

</div> 

</%def>    

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

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

<%def name="title()">

    ${_('Settings administration')} - ${c.rhodecode_name}

</%def>

<%def name="breadcrumbs_links()">

    ${h.link_to(_('Admin'),h.url('admin_home'))} » ${_('Settings')}

</%def>

<%def name="page_nav()">

	${self.menu('admin')}

</%def>

<%def name="main()">

<div class="box">

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}       

    </div>

    <!-- end box / title -->

    <h3>${_('Remap and rescan repositories')}</h3>

    ${h.form(url('admin_setting', setting_id='mapping'),method='put')}

    <div class="form">

        <!-- fields -->

        <div class="fields">

			<div class="field">

		        <div class="label label-checkbox">

		            <label for="destroy">${_('rescan option')}:</label>

		        </div>

		        <div class="checkboxes">

		            <div class="checkbox">

		                ${h.checkbox('destroy',True)}

		                <label for="checkbox-1">

		                ${_('destroy old data')}</span> </label>

		            </div>

		        </div>

			</div>

            <div class="buttons">

            ${h.submit('rescan','Rescan repositories',class_="ui-button")}

            </div>                                                          

        </div>

    </div>  

    ${h.end_form()}

    <h3>${_('Whoosh indexing')}</h3>

    ${h.form(url('admin_setting', setting_id='whoosh'),method='put')}

    <div class="form">

        <!-- fields -->

        <div class="fields">

            <div class="field">

                <div class="label label-checkbox">

                    <label for="destroy">${_('index build option')}:</label>

                </div>

                <div class="checkboxes">

                    <div class="checkbox">

                        ${h.checkbox('full_index',True)}

                        <label for="checkbox-1">${_('build from scratch')}</label>

                    </div>

                </div>

            </div>

            <div class="buttons">

            ${h.submit('reindex','Reindex',class_="ui-button")}

            </div>                                                          

        </div>

    </div>  

    ${h.end_form()}

    <h3>${_('Global application settings')}</h3> 

    ${h.form(url('admin_setting', setting_id='global'),method='put')}

    <div class="form">

        <!-- fields -->

        <div class="fields">

             <div class="field">

                <div class="label">

                    <label for="rhodecode_title">${_('Application name')}:</label>

                </div>

                <div class="input">

                    ${h.text('rhodecode_title',size=30)}

                </div>

             </div>

            <div class="field">

                <div class="label">

                    <label for="rhodecode_realm">${_('Realm text')}:</label>

                </div>