package procedure

import (
	"context"
	"testing"

	cpv1beta1 "github.com/crossplane/provider-aws/apis/eks/v1beta1"
	. "github.com/onsi/gomega"
	eksv1alpha1 "github.com/tidbcloud/eks-provider/api/v1alpha1"
	appsv1 "k8s.io/api/apps/v1"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/client-go/kubernetes/scheme"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/client/fake"
)

const (
	fakeFrpsImageURL = "fake.repository.io/frp/frps"
)

var (
	fakeFrpsDeployInfo ProcedureInfo
	fakeFrpsDeployKey  types.NamespacedName
)

func init() {
	fakeFrpsDeployInfo.Region = "us-west-2"
	fakeFrpsDeployInfo.Cluster = "eks1"
	fakeFrpsDeployInfo.ProviderConfigRef = "123456789012"
	fakeFrpsDeployInfo.eksConnection = &eksv1alpha1.EKSConnection{}
	fakeFrpsDeployInfo.namespace = ProcedureNamespace
	fakeFrpsDeployKey = ResourceKey(fakeFrpsDeployInfo, frpsDeployName)
}

func TestFrpsDeploymentDeploy(t *testing.T) {
	cases := map[string]struct {
		info      ProcedureInfo
		objs      []client.Object
		expectErr bool
	}{
		"create-success": {
			info:      fakeFrpsDeployInfo,
			expectErr: false,
		},
		"deployment-already-exist": {
			info: fakeFrpsDeployInfo,
			objs: []client.Object{
				&appsv1.Deployment{
					ObjectMeta: metav1.ObjectMeta{
						Name:      fakeFrpsDeployKey.Name,
						Namespace: fakeFrpsDeployKey.Namespace,
					},
				},
			},
			expectErr: false,
		},
	}
	for name, tc := range cases {
		t.Run(name, func(t *testing.T) {
			g := NewGomegaWithT(t)
			s := runtime.NewScheme()
			g.Expect(scheme.AddToScheme(s)).To(Succeed())
			g.Expect(cpv1beta1.SchemeBuilder.AddToScheme(s)).To(Succeed())
			cli := fake.NewClientBuilder().WithScheme(s).WithObjects(tc.objs...).Build()
			g.Expect(SetConfigWithKey(context.TODO(), cli, tc.info, frpsImageKey, fakeFrpsImageURL)).To(Succeed())
			p := NewFrpsDeploy()
			err := p.Deploy(context.TODO(), cli, cli, tc.info)
			if !tc.expectErr {
				g.Expect(err).To(Succeed())
			} else {
				g.Expect(err).NotTo(Succeed())
			}
		})
	}
}

func TestFrpsDeploymentStatus(t *testing.T) {
	addCondition := func(deploy *appsv1.Deployment, cond appsv1.DeploymentCondition) *appsv1.Deployment {
		deploy.Status.Conditions = append(deploy.Status.Conditions, cond)
		return deploy
	}
	cases := map[string]struct {
		info        ProcedureInfo
		objs        []client.Object
		expectReady bool
		expectErr   bool
	}{
		"not-exist": {
			info:        fakeFrpsDeployInfo,
			expectErr:   true,
			expectReady: false,
		},
		"deploy-ready": {
			info: fakeFrpsDeployInfo,
			objs: []client.Object{
				addCondition(
					getFrpsDeployment(fakeFrpsDeployInfo, fakeFrpsImageURL),
					appsv1.DeploymentCondition{
						Type:   appsv1.DeploymentAvailable,
						Status: corev1.ConditionTrue,
					},
				),
			},
			expectErr:   false,
			expectReady: true,
		},
		"deploy-not-ready": {
			info: fakeFrpsDeployInfo,
			objs: []client.Object{
				addCondition(
					getFrpsDeployment(fakeFrpsDeployInfo, fakeFrpsImageURL),
					appsv1.DeploymentCondition{
						Type:   appsv1.DeploymentAvailable,
						Status: corev1.ConditionFalse,
					},
				),
			},
			expectErr:   false,
			expectReady: false,
		},
	}
	for name, tc := range cases {
		t.Run(name, func(t *testing.T) {
			g := NewGomegaWithT(t)
			s := runtime.NewScheme()
			g.Expect(scheme.AddToScheme(s)).To(Succeed())
			g.Expect(cpv1beta1.SchemeBuilder.AddToScheme(s)).To(Succeed())
			cli := fake.NewClientBuilder().WithScheme(s).WithObjects(tc.objs...).Build()
			g.Expect(SetConfigWithKey(context.TODO(), cli, tc.info, frpsImageKey, fakeFrpsImageURL)).To(Succeed())
			p := NewFrpsDeploy()
			ready, err := p.Status(context.TODO(), cli, cli, tc.info)
			if !tc.expectErr {
				g.Expect(err).To(Succeed())
			} else {
				g.Expect(err).NotTo(Succeed())
				return
			}
			g.Expect(ready).To(Equal(tc.expectReady))
		})
	}
}