// Copyright © 2023 Ory Corp
// SPDX-License-Identifier: Apache-2.0

package controllers_test

import (
	"context"
	"path/filepath"
	"testing"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"

	"k8s.io/client-go/kubernetes/scheme"
	"k8s.io/client-go/rest"
	"k8s.io/client-go/util/retry"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/envtest"
	logf "sigs.k8s.io/controller-runtime/pkg/log"
	"sigs.k8s.io/controller-runtime/pkg/log/zap"
	"sigs.k8s.io/controller-runtime/pkg/manager"
	"sigs.k8s.io/controller-runtime/pkg/reconcile"
	// +kubebuilder:scaffold:imports
)

// These tests use Ginkgo (BDD-style Go testing framework). Refer to
// http://onsi.github.io/ginkgo/ to learn more about Ginkgo.

var cfg *rest.Config
var k8sClient client.Client
var testEnv *envtest.Environment

func TestAPIs(t *testing.T) {
	RegisterFailHandler(Fail)

	RunSpecsWithDefaultAndCustomReporters(t,
		"Controller Suite",
		[]Reporter{})
}

var _ = BeforeSuite(func(done Done) {
	logf.SetLogger(zap.New(zap.UseDevMode(true), zap.WriteTo(GinkgoWriter)))

	By("bootstrapping test environment")
	testEnv = &envtest.Environment{
		CRDDirectoryPaths: []string{filepath.Join("..", "config", "crd", "bases")},
	}

	var err error
	cfg, err = testEnv.Start()
	Expect(err).ToNot(HaveOccurred())
	Expect(cfg).ToNot(BeNil())

	// +kubebuilder:scaffold:scheme

	k8sClient, err = client.New(cfg, client.Options{Scheme: scheme.Scheme})
	Expect(err).ToNot(HaveOccurred())
	Expect(k8sClient).ToNot(BeNil())

	close(done)
}, 60)

var _ = AfterSuite(func() {
	By("tearing down the test environment")

	// Need to retry a bit if the first stop fails due to a bug:
	// https://github.com/kubernetes-sigs/controller-runtime/issues/1571
	err := retry.OnError(retry.DefaultBackoff, func(err error) bool {
		return true
	}, func() error {
		return testEnv.Stop()
	})
	Expect(err).NotTo(HaveOccurred())
})

// SetupTestReconcile returns a reconcile.Reconcile implementation that delegates to inner and
// writes the request to requests after Reconcile is finished.
func SetupTestReconcile(inner reconcile.Reconciler) (reconcile.Reconciler, chan reconcile.Request) {
	requests := make(chan reconcile.Request)
	fn := reconcile.Func(func(ctx context.Context, req reconcile.Request) (reconcile.Result, error) {
		result, err := inner.Reconcile(ctx, req)
		requests <- req
		return result, err
	})
	return fn, requests
}

// StartTestManager adds recFn
func StartTestManager(mgr manager.Manager) context.Context {
	ctx := context.Background()

	go func() {
		defer GinkgoRecover()
		defer ctx.Done()
		Expect(mgr.Start(ctx)).NotTo(HaveOccurred())
	}()
	return ctx
}