/*
Copyright 2018 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 backendprotocol

import (
	"testing"

	api "k8s.io/api/core/v1"
	networking "k8s.io/api/networking/v1beta1"
	meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
	"k8s.io/ingress-nginx/internal/ingress/resolver"

	"k8s.io/apimachinery/pkg/util/intstr"
)

func buildIngress() *networking.Ingress {
	return &networking.Ingress{
		ObjectMeta: meta_v1.ObjectMeta{
			Name:      "foo",
			Namespace: api.NamespaceDefault,
		},
		Spec: networking.IngressSpec{
			Backend: &networking.IngressBackend{
				ServiceName: "default-backend",
				ServicePort: intstr.FromInt(80),
			},
		},
	}
}
func TestParseInvalidAnnotations(t *testing.T) {
	ing := buildIngress()

	// Test no annotations set
	i, err := NewParser(&resolver.Mock{}).Parse(ing)
	if err != nil {
		t.Errorf("unexpected error parsing ingress with backend-protocol")
	}
	val, ok := i.(string)
	if !ok {
		t.Errorf("expected a string type")
	}
	if val != "HTTP" {
		t.Errorf("expected HTTPS but %v returned", val)
	}

	data := map[string]string{}
	ing.SetAnnotations(data)

	// Test with empty annotations
	i, err = NewParser(&resolver.Mock{}).Parse(ing)
	if err != nil {
		t.Errorf("unexpected error parsing ingress with backend-protocol")
	}
	val, ok = i.(string)
	if !ok {
		t.Errorf("expected a string type")
	}
	if val != "HTTP" {
		t.Errorf("expected HTTPS but %v returned", val)
	}

	// Test invalid annotation set
	data[parser.GetAnnotationWithPrefix("backend-protocol")] = "INVALID"
	ing.SetAnnotations(data)

	i, err = NewParser(&resolver.Mock{}).Parse(ing)
	if err != nil {
		t.Errorf("unexpected error parsing ingress with backend-protocol")
	}
	val, ok = i.(string)
	if !ok {
		t.Errorf("expected a string type")
	}
	if val != "HTTP" {
		t.Errorf("expected HTTPS but %v returned", val)
	}
}

func TestParseAnnotations(t *testing.T) {
	ing := buildIngress()

	data := map[string]string{}
	data[parser.GetAnnotationWithPrefix("backend-protocol")] = "HTTPS"
	ing.SetAnnotations(data)

	i, err := NewParser(&resolver.Mock{}).Parse(ing)
	if err != nil {
		t.Errorf("unexpected error parsing ingress with backend-protocol")
	}
	val, ok := i.(string)
	if !ok {
		t.Errorf("expected a string type")
	}
	if val != "HTTPS" {
		t.Errorf("expected HTTPS but %v returned", val)
	}
}
