//go:build unit || all
// +build unit all

package procedure

import (
	"context"
	"testing"

	cpv1beta1 "github.com/crossplane-contrib/provider-aws/apis/eks/v1beta1"
	lambdav1alpha1 "github.com/crossplane-contrib/provider-aws/apis/lambda/v1alpha1"
	cpv1 "github.com/crossplane/crossplane-runtime/apis/common/v1"
	. "github.com/onsi/gomega"
	eksv1alpha1 "github.com/tidbcloud/eks-provider/api/v1alpha1"
	"github.com/tidbcloud/infra-provider/pkg/namer"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/client-go/kubernetes/scheme"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/client/fake"
)

const (
	fakeS3FuncBucket = "fake-s3-func-bucket"
	fakeS3FuncObject = "fake-s3-func-object"
)

var (
	fakeLambdaFuncInfo ProcedureInfo
	fakeLambdaFuncName string
)

func init() {
	fakeLambdaFuncInfo.Region = "us-west-2"
	fakeLambdaFuncInfo.Cluster = "eks1"
	fakeLambdaFuncInfo.ProviderConfigRef = "123456789012"
	fakeLambdaFuncInfo.SubnetIDs = []string{"subnet1", "subnet2"}
	fakeLambdaFuncInfo.eksConnection = &eksv1alpha1.EKSConnection{}
	fakeLambdaFuncInfo.namespace = ProcedureNamespace
	fakeLambdaFuncName = namer.UniqueIdentifier(fakeLambdaFuncInfo.eksConnection.ObjectMeta)
}

func TestLambdaFuncDeploy(t *testing.T) {
	cases := map[string]struct {
		info      ProcedureInfo
		objs      []client.Object
		expectErr bool
	}{
		"create-success": {
			info:      fakeLambdaFuncInfo,
			expectErr: false,
		},
		"function-already-exist": {
			info: fakeLambdaFuncInfo,
			objs: []client.Object{
				&lambdav1alpha1.Function{
					ObjectMeta: metav1.ObjectMeta{
						Name: fakeLambdaFuncName,
					},
				},
			},
			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())
			g.Expect(eksv1alpha1.SchemeBuilder.AddToScheme(s)).To(Succeed())
			g.Expect(lambdav1alpha1.SchemeBuilder.AddToScheme(s)).To(Succeed())
			cli := fake.NewClientBuilder().WithScheme(s).WithObjects(tc.objs...).Build()
			g.Expect(SetConfigWithKey(context.TODO(), cli, tc.info, lambdaFuncBucketKey, fakeS3FuncBucket)).To(Succeed())
			g.Expect(SetConfigWithKey(context.TODO(), cli, tc.info, lambdaFuncObjectKey, fakeS3FuncObject)).To(Succeed())
			p := NewLambdaFunc(s)
			err := p.Deploy(context.TODO(), cli, cli, tc.info)
			if !tc.expectErr {
				g.Expect(err).To(Succeed())
			} else {
				g.Expect(err).NotTo(Succeed())
			}
		})
	}
}

func TestLambdaFuncStatus(t *testing.T) {
	addCondition := func(obj *lambdav1alpha1.Function, cond cpv1.Condition) *lambdav1alpha1.Function {
		obj.Status.ConditionedStatus.SetConditions(cond)
		return obj
	}
	cases := map[string]struct {
		info        ProcedureInfo
		objs        []client.Object
		expectReady bool
		expectErr   bool
	}{
		"not-exist": {
			info:        fakeLambdaFuncInfo,
			expectErr:   true,
			expectReady: false,
		},
		"function-ready": {
			info: fakeLambdaFuncInfo,
			objs: []client.Object{
				addCondition(
					getLambdaFunc(fakeLambdaFuncInfo, fakeS3FuncBucket, fakeS3FuncObject),
					cpv1.Condition{
						Type:   cpv1.TypeReady,
						Status: corev1.ConditionTrue,
					},
				),
			},
			expectErr:   false,
			expectReady: true,
		},
		"function-not-ready": {
			info: fakeLambdaFuncInfo,
			objs: []client.Object{
				addCondition(
					getLambdaFunc(fakeLambdaFuncInfo, fakeS3FuncBucket, fakeS3FuncObject),
					cpv1.Condition{
						Type:   cpv1.TypeReady,
						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())
			g.Expect(eksv1alpha1.SchemeBuilder.AddToScheme(s)).To(Succeed())
			g.Expect(lambdav1alpha1.SchemeBuilder.AddToScheme(s)).To(Succeed())
			cli := fake.NewClientBuilder().WithScheme(s).WithObjects(tc.objs...).Build()
			g.Expect(SetConfigWithKey(context.TODO(), cli, tc.info, lambdaFuncBucketKey, fakeS3FuncBucket)).To(Succeed())
			g.Expect(SetConfigWithKey(context.TODO(), cli, tc.info, lambdaFuncObjectKey, fakeS3FuncObject)).To(Succeed())
			p := NewLambdaFunc(s)
			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))
		})
	}
}