/*
Copyright 2025 The KubeFleet 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 v1beta1

import (
	"flag"
	"path/filepath"
	"testing"

	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
	"k8s.io/client-go/kubernetes/scheme"
	"k8s.io/client-go/rest"
	"k8s.io/klog/v2"
	"k8s.io/klog/v2/textlogger"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/envtest"
	"sigs.k8s.io/controller-runtime/pkg/manager"
	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
	workv1alpha1 "sigs.k8s.io/work-api/pkg/apis/v1alpha1"

	clusterv1beta1 "go.goms.io/fleet/apis/cluster/v1beta1"
	placementv1beta1 "go.goms.io/fleet/apis/placement/v1beta1"
)

var (
	cfg       *rest.Config
	mgr       manager.Manager
	k8sClient client.Client
	testEnv   *envtest.Environment
)

func TestMemberCluster(t *testing.T) {
	RegisterFailHandler(Fail)
	RunSpecs(t, "MemberCluster Controller Integration Test Suite")
}

var _ = BeforeSuite(func() {
	done := make(chan interface{})
	go func() {
		By("Setup klog")
		fs := flag.NewFlagSet("klog", flag.ContinueOnError)
		klog.InitFlags(fs)
		Expect(fs.Parse([]string{"--v", "5", "-add_dir_header", "true"})).Should(Succeed())

		By("bootstrapping test environment")
		testEnv = &envtest.Environment{
			CRDDirectoryPaths:     []string{filepath.Join("../../../../", "config", "crd", "bases")},
			ErrorIfCRDPathMissing: true,
		}
		var err error
		cfg, err = testEnv.Start()
		Expect(err).NotTo(HaveOccurred())
		Expect(cfg).NotTo(BeNil())

		err = placementv1beta1.AddToScheme(scheme.Scheme)
		Expect(err).NotTo(HaveOccurred())
		err = clusterv1beta1.AddToScheme(scheme.Scheme)
		Expect(err).NotTo(HaveOccurred())
		err = workv1alpha1.AddToScheme(scheme.Scheme)
		Expect(err).NotTo(HaveOccurred())

		//+kubebuilder:scaffold:scheme
		By("construct the k8s client")
		k8sClient, err = client.New(cfg, client.Options{Scheme: scheme.Scheme})
		Expect(err).NotTo(HaveOccurred())
		Expect(k8sClient).NotTo(BeNil())

		By("Starting the controller manager")
		klog.InitFlags(flag.CommandLine)
		mgr, err = ctrl.NewManager(cfg, ctrl.Options{
			Scheme: scheme.Scheme,
			Metrics: metricsserver.Options{
				BindAddress: "0",
			},
			Logger: textlogger.NewLogger(textlogger.NewConfig(textlogger.Verbosity(4))),
		})
		Expect(err).ToNot(HaveOccurred())

		close(done)
	}()
	Eventually(done, 60).Should(BeClosed())
})

var _ = AfterSuite(func() {
	By("tearing down the test environment")
	err := testEnv.Stop()
	Expect(err).NotTo(HaveOccurred())
})
