/*
Copyright 2018 The KubeSphere Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package db

import (
	"k8s.io/klog"
)

// EventReceiver is a sentinel EventReceiver; use it if the caller doesn't supply one
type EventReceiver struct{}

// Event receives a simple notification when various events occur
func (n *EventReceiver) Event(eventName string) {

}

// EventKv receives a notification when various events occur along with
// optional key/value data
func (n *EventReceiver) EventKv(eventName string, kvs map[string]string) {
}

// EventErr receives a notification of an error if one occurs
func (n *EventReceiver) EventErr(eventName string, err error) error {
	return err
}

// EventErrKv receives a notification of an error if one occurs along with
// optional key/value data
func (n *EventReceiver) EventErrKv(eventName string, err error, kvs map[string]string) error {
	klog.Errorf("%+v", err)
	klog.Errorf("%s: %+v", eventName, kvs)
	return err
}

// Timing receives the time an event took to happen
func (n *EventReceiver) Timing(eventName string, nanoseconds int64) {

}

// TimingKv receives the time an event took to happen along with optional key/value data
func (n *EventReceiver) TimingKv(eventName string, nanoseconds int64, kvs map[string]string) {
	// TODO: Change logger level to debug
	klog.Infof("%s spend %.2fms: %+v", eventName, float32(nanoseconds)/1000000, kvs)
}
