/*
Copyright 2015 The Kubernetes 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 store

import (
	networking "k8s.io/api/networking/v1beta1"
	"k8s.io/client-go/tools/cache"
	"k8s.io/ingress-nginx/internal/ingress"
)

// IngressLister makes a Store that lists Ingress.
type IngressLister struct {
	cache.Store
}

// ByKey returns the Ingress matching key in the local Ingress Store.
func (il IngressLister) ByKey(key string) (*networking.Ingress, error) {
	i, exists, err := il.GetByKey(key)
	if err != nil {
		return nil, err
	}
	if !exists {
		return nil, NotExistsError(key)
	}
	return i.(*networking.Ingress), nil
}

// FilterIngresses returns the list of Ingresses
func FilterIngresses(ingresses []*ingress.Ingress, filterFunc IngressFilterFunc) []*ingress.Ingress {
	afterFilter := make([]*ingress.Ingress, 0)
	for _, ingress := range ingresses {
		if !filterFunc(ingress) {
			afterFilter = append(afterFilter, ingress)
		}
	}

	sortIngressSlice(afterFilter)
	return afterFilter
}
