import traceback

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

from pylons.i18n.translation import _

from pylons.controllers.util import redirect

import rhodecode.lib.helpers as h

from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator

from rhodecode.lib.base import BaseController, render

from rhodecode.lib.utils import EmptyChangeset

from rhodecode.model.scm import ScmModel

from vcs.exceptions import RepositoryError, ChangesetError, \

ChangesetDoesNotExistError

from vcs.nodes import FileNode

from vcs.utils import diffs as differ

from vcs.utils.ordered_dict import OrderedDict

log = logging.getLogger(__name__)

class ChangesetController(BaseController):

    @LoginRequired()

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

                                   'repository.admin')

    def __before__(self):

        super(ChangesetController, self).__before__()

    def index(self, revision):

        hg_model = ScmModel()

        def wrap_to_table(str):

            return '''<table class="code-difftable">

                        <tr class="line">

                        <td class="lineno new"></td>

                        <td class="code"><pre>%s</pre></td>

                        </tr>

                      </table>''' % str

        #get ranges of revisions if preset

        rev_range = revision.split('...')[:2]

        range_limit = 50

        try:

            repo = hg_model.get_repo(c.repo_name)

            if len(rev_range) == 2:

                rev_start = rev_range[0]

                rev_end = rev_range[1]

                                                       range_limit)

            else:

                rev_ranges = [repo.get_changeset(revision)]

            c.cs_ranges = list(rev_ranges)

        except (RepositoryError, ChangesetDoesNotExistError, Exception), e:

            log.error(traceback.format_exc())

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

            return redirect(url('home'))

        c.changes = OrderedDict()

        c.sum_added = 0

        c.sum_removed = 0

        for changeset in c.cs_ranges:

            c.changes[changeset.raw_id] = []

            try:

                changeset_parent = changeset.parents[0]

            except IndexError:

                changeset_parent = None

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

            # ADDED FILES

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

            for node in changeset.added:

                filenode_old = FileNode(node.path, '', EmptyChangeset())

                if filenode_old.is_binary or node.is_binary:

                    diff = wrap_to_table(_('binary file'))

                else:

                    c.sum_added += node.size

                    if c.sum_added < self.cut_off_limit:

                        f_udiff = differ.get_udiff(filenode_old, node)

                        diff = differ.DiffProcessor(f_udiff).as_html()

                    else:

                        diff = wrap_to_table(_('Changeset is to big and was cut'

                                            ' off, see raw changeset instead'))

                cs1 = None

                cs2 = node.last_changeset.raw_id

                c.changes[changeset.raw_id].append(('added', node, diff, cs1, cs2))

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

            # CHANGED FILES

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

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():

        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,

                revision=rev), title=tooltip(message(rev)),

                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="#more">%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),

                title=message(rev), class_='tooltip')

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

        return cs_links

    def get_fork_name():

        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)

    map = {'user_deleted_repo':(_('User [deleted] repository'), None),

           'user_created_repo':(_('User [created] repository'), None),

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

           'user_updated_repo':(_('User [updated] repository'), None),

           'admin_deleted_repo':(_('Admin [delete] repository'), None),

           'admin_created_repo':(_('Admin [created] repository'), None),

           'admin_forked_repo':(_('Admin [forked] repository'), None),

           'admin_updated_repo':(_('Admin [updated] repository'), None),

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

           'pull':(_('[Pulled]'), None),

           'started_following_repo':(_('User [started following] repository'), None),

           'stopped_following_repo':(_('User [stopped following] repository'), None),

            }

    action_str = map.get(action, action)

    action = action_str[0].replace('[', '<span class="journal_highlight">')\

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

    if action_str[1] is not None:

        action = action + " " + action_str[1]()

    return literal(action)

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',

overflow:hidden;

border-top:1px solid #DDD;

text-align:left;

margin:0;

padding:10px 0 0 150px;

}

#register div.form div.fields div.buttons div.highlight input.ui-button {

background:url("../images/button_highlight.png") repeat-x scroll 0 0 #4E85BB;

color:#FFF;

border-color:#5C91A4 #2B7089 #1A6480 #2A6F89;

border-style:solid;

border-width:1px;

}

#register div.form div.activation_msg {

padding-top:4px;

padding-bottom:4px;

}

#journal .journal_day{

font-size:20px;

padding:10px 0px;

border-bottom:2px solid #DDD;

margin-left:10px;

margin-right:10px;

}

#journal .journal_action{

padding-top:4px;

min-height:15px;

}

#journal .journal_icon{

float: left;

padding-top: 4px;

padding-left:12px;

}

#journal .journal_repo{

margin-left: 38px;

padding-top: 5px;

}

#journal .journal_repo .journal_repo_name{

font-weight: bold;

font-size: 1.1em;

}

.trending_language_tbl,.trending_language_tbl td {

border:0 !important;

margin:0 !important;

padding:0 !important;

}

.trending_language {

background-color:#003367;

color:#FFF;

display:block;

min-width:20px;

text-decoration:none;

height:12px;

margin-bottom:4px;

margin-left:5px;

white-space:pre;

padding:3px;

}

h3.files_location {

font-size:1.8em;

font-weight:700;

border-bottom:none !important;

margin:10px 0 !important;

}

#files_data dl dt {

float:left;

width:115px;

margin:0 !important;

padding:5px;

}

#files_data dl dd {

margin:0 !important;

padding:5px !important;

}

#changeset_content {

border:1px solid #CCC;

padding:5px;

}

#changeset_content .container {

min-height:120px;

font-size:1.2em;

overflow:hidden;

}