External function to get service data

Signed-off-by: Valentin Popov <info@valentineus.link>

externallib.php

@@ -24,6 +24,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
+require_once($CFG->dirroot . '/local/webhooks/lib.php');
 require_once($CFG->libdir . '/externallib.php');
 
 /**
@@ -34,4 +35,67 @@ require_once($CFG->libdir . '/externallib.php');
  * @package   local_webhooks
  */
 class local_webhooks_external extends external_api {
+    /**
+     * Returns description of method parameters.
+     *
+     * @return \external_function_parameters
+     *
+     * @since Moodle 2.2
+     * @since Moodle 2.9 Options available
+     */
+    public static function get_service_parameters() {
+        return new external_function_parameters(
+            array(
+                'serviceid' => new external_value(PARAM_INT, 'Service ID.'),
+            )
+        );
+    }
+
+    /**
+     * Get information about the service.
+     *
+     * @param $serviceid
+     *
+     * @return array
+     *
+     * @since Moodle 2.2
+     * @since Moodle 2.9 Options available
+     *
+     * @throws \dml_exception
+     * @throws \invalid_parameter_exception
+     * @throws \moodle_exception
+     * @throws \restricted_context_exception
+     */
+    public static function get_service($serviceid) {
+        $parameters = self::validate_parameters(self::get_service_parameters(), array('serviceid' => $serviceid));
+
+        $context = context_system::instance();
+        self::validate_context($context);
+
+        return (array) local_webhooks_api::get_service($parameters['serviceid']);
+    }
+
+    /**
+     * Returns description of method result value.
+     *
+     * @return \external_single_structure
+     *
+     * @since Moodle 2.2
+     * @since Moodle 2.9 Options available
+     */
+    public static function get_service_returns() {
+        return new external_single_structure(
+            array(
+                'id'     => new external_value(PARAM_INT, 'Service ID.'),
+                'header' => new external_value(PARAM_RAW, 'Type of outgoing header.'),
+                'name'   => new external_value(PARAM_RAW, 'Name of the service.'),
+                'point'  => new external_value(PARAM_URL, 'Point of delivery of notifications.'),
+                'status' => new external_value(PARAM_BOOL, 'Current status of the service.'),
+                'token'  => new external_value(PARAM_RAW, 'Token for verification of requests.'),
+                'events' => new external_multiple_structure(
+                    new external_value(PARAM_RAW, 'Event name.'), 'List of events.'
+                ),
+            )
+        );
+    }
 }