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

# Copyright (C) 2011-2018 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# 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 Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/

import logging
import urllib
from pyramid.view import view_config
from webhelpers.util import update_params

from rhodecode.apps._base import BaseAppView, RepoAppView
from rhodecode.lib.auth import (LoginRequired, HasRepoPermissionAnyDecorator)
from rhodecode.lib.helpers import Page
from rhodecode.lib.utils2 import safe_str
from rhodecode.lib.index import searcher_from_config
from rhodecode.model import validation_schema
from rhodecode.model.validation_schema.schemas import search_schema

log = logging.getLogger(__name__)


def search(request, tmpl_context, repo_name):
    searcher = searcher_from_config(request.registry.settings)
    formatted_results = []
    execution_time = ''

    schema = search_schema.SearchParamsSchema()

    search_params = {}
    errors = []
    try:
        search_params = schema.deserialize(
            dict(
                search_query=request.GET.get('q'),
                search_type=request.GET.get('type'),
                search_sort=request.GET.get('sort'),
                search_max_lines=request.GET.get('max_lines'),
                page_limit=request.GET.get('page_limit'),
                requested_page=request.GET.get('page'),
             )
        )
    except validation_schema.Invalid as e:
        errors = e.children

    def url_generator(**kw):
        q = urllib.quote(safe_str(search_query))
        return update_params(
            "?q=%s&type=%s&max_lines=%s" % (q, safe_str(search_type), search_max_lines), **kw)

    c = tmpl_context
    search_query = search_params.get('search_query')
    search_type = search_params.get('search_type')
    search_sort = search_params.get('search_sort')
    search_max_lines = search_params.get('search_max_lines')
    if search_params.get('search_query'):
        page_limit = search_params['page_limit']
        requested_page = search_params['requested_page']

        try:
            search_result = searcher.search(
                search_query, search_type, c.auth_user, repo_name,
                requested_page, page_limit, search_sort)

            formatted_results = Page(
                search_result['results'], page=requested_page,
                item_count=search_result['count'],
                items_per_page=page_limit, url=url_generator)
        finally:
            searcher.cleanup()

        if not search_result['error']:
            execution_time = '%s results (%.3f seconds)' % (
                search_result['count'],
                search_result['runtime'])
        elif not errors:
            node = schema['search_query']
            errors = [
                validation_schema.Invalid(node, search_result['error'])]

    c.perm_user = c.auth_user
    c.repo_name = repo_name
    c.sort = search_sort
    c.url_generator = url_generator
    c.errors = errors
    c.formatted_results = formatted_results
    c.runtime = execution_time
    c.cur_query = search_query
    c.search_type = search_type
    c.searcher = searcher


class SearchView(BaseAppView):
    def load_default_context(self):
        c = self._get_local_tmpl_context()

        return c

    @LoginRequired()
    @view_config(
        route_name='search', request_method='GET',
        renderer='rhodecode:templates/search/search.mako')
    def search(self):
        c = self.load_default_context()
        search(self.request, c, repo_name=None)
        return self._get_template_context(c)


class SearchRepoView(RepoAppView):
    def load_default_context(self):
        c = self._get_local_tmpl_context()

        return c

    @LoginRequired()
    @HasRepoPermissionAnyDecorator(
        'repository.read', 'repository.write', 'repository.admin')
    @view_config(
        route_name='search_repo', request_method='GET',
        renderer='rhodecode:templates/search/search.mako')
    def search_repo(self):
        c = self.load_default_context()
        search(self.request, c, repo_name=self.db_repo_name)
        return self._get_template_context(c)