# -*- coding: utf-8 -*-
"""
    rhodecode.controllers.pullrequests
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    pull requests controller for rhodecode for initializing pull requests

    :created_on: May 7, 2012
    :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 logging
import traceback

from pylons import request, response, session, tmpl_context as c, url
from pylons.controllers.util import abort, redirect
from pylons.i18n.translation import _

from rhodecode.lib.base import BaseRepoController, render
from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator
from rhodecode.lib import helpers as h
from rhodecode.model.db import User, PullRequest
from rhodecode.model.pull_request import PullRequestModel
from rhodecode.model.meta import Session

log = logging.getLogger(__name__)


class PullrequestsController(BaseRepoController):

    @LoginRequired()
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                   'repository.admin')
    def __before__(self):
        super(PullrequestsController, self).__before__()

    def _get_repo_refs(self, repo):
        hist_l = []

        branches_group = ([('branch:' + k, k) for k in repo.branches.keys()],
                          _("Branches"))
        bookmarks_group = ([('book:' + k, k) for k in repo.bookmarks.keys()],
                           _("Bookmarks"))
        tags_group = ([('tag:' + k, k) for k in repo.tags.keys()],
                      _("Tags"))

        hist_l.append(bookmarks_group)
        hist_l.append(branches_group)
        hist_l.append(tags_group)

        return hist_l

    def index(self):
        org_repo = c.rhodecode_db_repo
        c.org_refs = self._get_repo_refs(c.rhodecode_repo)
        c.org_repos = []
        c.other_repos = []
        c.org_repos.append((org_repo.repo_name, '%s/%s' % (
                                org_repo.user.username, c.repo_name))
                           )

        c.other_refs = c.org_refs
        c.other_repos.extend(c.org_repos)
        c.default_pull_request = org_repo.repo_name
        #gather forks and add to this list
        for fork in org_repo.forks:
            c.other_repos.append((fork.repo_name, '%s/%s' % (
                                    fork.user.username, fork.repo_name))
                                 )
        #add parents of this fork also
        if org_repo.parent:
            c.default_pull_request = org_repo.parent.repo_name
            c.other_repos.append((org_repo.parent.repo_name, '%s/%s' % (
                                        org_repo.parent.user.username,
                                        org_repo.parent.repo_name))
                                     )

        #TODO: maybe the owner should be default ?
        c.review_members = []
        c.available_members = []
        for u in User.query().filter(User.username != 'default').all():
            uname = u.username
            if org_repo.user == u:
                uname = _('%s (owner)' % u.username)
                # auto add owner to pull-request recipients
                c.review_members.append([u.user_id, uname])
            c.available_members.append([u.user_id, uname])
        return render('/pullrequests/pullrequest.html')

    def create(self, repo_name):
        req_p = request.POST
        org_repo = req_p['org_repo']
        org_ref = req_p['org_ref']
        other_repo = req_p['other_repo']
        other_ref = req_p['other_ref']
        revisions = req_p.getall('revisions')
        reviewers = req_p.getall('review_members')
        #TODO: wrap this into a FORM !!!

        title = req_p['pullrequest_title']
        description = req_p['pullrequest_desc']

        try:
            model = PullRequestModel()
            model.create(self.rhodecode_user.user_id, org_repo,
                         org_ref, other_repo, other_ref, revisions,
                         reviewers, title, description)
            Session.commit()
            h.flash(_('Pull request send'), category='success')
        except Exception:
            raise
            h.flash(_('Error occured during sending pull request'),
                    category='error')
            log.error(traceback.format_exc())

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

    def show(self, repo_name, pull_request_id):
        c.pull_request = PullRequest.get(pull_request_id)
        return render('/pullrequests/pullrequest_show.html')