<?php
# MantisBT - A PHP based bugtracking system

# MantisBT 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 2 of the License, or
# (at your option) any later version.
#
# MantisBT 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 MantisBT.  If not, see <http://www.gnu.org/licenses/>.

/**
 * A webservice interface to Mantis Bug Tracker
 *
 * @package MantisBT
 * @copyright Copyright MantisBT Team - mantisbt-dev@lists.sourceforge.net
 * @link http://www.mantisbt.org
 */

require_once( dirname( __DIR__, 2 ) . '/soap/mc_filter_api.php'  );

use Mantis\Exceptions\ClientException;
use Slim\Http\Request as SlimRequest;
use Slim\Http\Response as SlimResponse;

/** @global Slim\App $g_app */
$g_app->group('/filters', function() use ( $g_app ) {
	$g_app->get( '', 'rest_filter_get' );
	$g_app->get( '/', 'rest_filter_get' );
	$g_app->get( '/{id}', 'rest_filter_get' );
	$g_app->get( '/{id}/', 'rest_filter_get' );
	$g_app->delete( '/{id}', 'rest_filter_delete' );
	$g_app->delete( '/{id}/', 'rest_filter_delete' );
});

/**
 * A method that does the work to handle getting filters via REST API.
 * If a project id is specified, the filters applicable to such project is returned,
 * otherwise all filters are returned.
 *
 * @param SlimRequest  $p_request  The request.
 * @param SlimResponse $p_response The response.
 * @param array        $p_args     Arguments
 *
 * @return SlimResponse The augmented response.
 * @throws ClientException
 */
function rest_filter_get( SlimRequest $p_request, SlimResponse $p_response, array $p_args ) {
	# Filter id will be null if not provided.
	$t_filter_id = $p_args['id'] ?? $p_request->getParam( 'id' );

	$t_project_id = $p_request->getParam( 'project_id' );
	if( $t_project_id !== null && (int)$t_project_id != ALL_PROJECTS && !project_exists( $t_project_id ) ) {
		$t_message = "Project '$t_project_id' doesn't exist";
		return $p_response->withStatus( HTTP_STATUS_NOT_FOUND, $t_message );
	}

	$t_filters = mc_filter_get( '', '', $t_project_id, $t_filter_id );
	$t_result = array( 'filters' => $t_filters );

	return $p_response->withStatus( HTTP_STATUS_SUCCESS )->withJson( $t_result );
}

/**
 * Delete a filter given its id.
 *
 * @param SlimRequest  $p_request  The request.
 * @param SlimResponse $p_response The response.
 * @param array        $p_args     Arguments.
 *
 * @return SlimResponse The augmented response.
 */
function rest_filter_delete( SlimRequest $p_request, SlimResponse $p_response, array $p_args ) {
	$t_filter_id = $p_args['id'] ?? $p_request->getParam( 'id' );

	$t_result = mci_filter_delete( $t_filter_id );
	if( ApiObjectFactory::isFault( $t_result ) ) {
		return $p_response->withStatus( $t_result->status_code, $t_result->fault_string );
	}

	return $p_response->withStatus( HTTP_STATUS_NO_CONTENT );
}
