/*
Copyright 2023 The K8sGPT 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 analyzer

import (
	"context"

	"github.com/k8sgpt-ai/k8sgpt/pkg/kubernetes"
	v1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

func FetchLatestEvent(ctx context.Context, kubernetesClient *kubernetes.Client, namespace string, name string) (*v1.Event, error) {

	// get the list of events
	events, err := kubernetesClient.GetClient().CoreV1().Events(namespace).List(ctx,
		metav1.ListOptions{
			FieldSelector: "involvedObject.name=" + name,
		})

	if err != nil {
		return nil, err
	}
	// find most recent event
	var latestEvent *v1.Event
	for _, event := range events.Items {
		if latestEvent == nil {
			// this is required, as a pointer to a loop variable would always yield the latest value in the range
			e := event
			latestEvent = &e
		}
		if event.LastTimestamp.After(latestEvent.LastTimestamp.Time) {
			// this is required, as a pointer to a loop variable would always yield the latest value in the range
			e := event
			latestEvent = &e
		}
	}
	return latestEvent, nil
}