package main

import (
	"flag"
	"os"

	gozap "go.uber.org/zap"
	cmv1 "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
	"k8s.io/apimachinery/pkg/runtime"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/healthz"
	"sigs.k8s.io/controller-runtime/pkg/log/zap"
	gwapiv1 "sigs.k8s.io/gateway-api/apis/v1"

	"github.com/example/gateway-cert-operator/internal/controller"
)

var scheme = runtime.NewScheme()

func init() {
	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
	utilruntime.Must(cmv1.AddToScheme(scheme))
	utilruntime.Must(gwapiv1.Install(scheme))
}

func main() {
	var metricsAddr string
	var probeAddr string

	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metrics endpoint binds to.")
	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
	flag.Parse()

	ctrl.SetLogger(zap.New(
		zap.UseDevMode(true),
		func(o *zap.Options) {
			o.ZapOpts = append(o.ZapOpts, gozap.AddCaller())
		},
	))
	log := ctrl.Log.WithName("setup")

	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
		Scheme:                 scheme,
		HealthProbeBindAddress: probeAddr,
	})
	if err != nil {
		log.Error(err, "unable to create manager")
		os.Exit(1)
	}

	if err := controller.SetupCertificateReconciler(mgr); err != nil {
		log.Error(err, "unable to setup certificate controller")
		os.Exit(1)
	}

	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
		log.Error(err, "unable to set up health check")
		os.Exit(1)
	}
	if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
		log.Error(err, "unable to set up ready check")
		os.Exit(1)
	}

	log.Info("starting manager")
	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
		log.Error(err, "problem running manager")
		os.Exit(1)
	}
}