package main

import (
	"github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes"
	appsv1 "github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes/apps/v1"
	corev1 "github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes/core/v1"
	metav1 "github.com/pulumi/pulumi-kubernetes/sdk/v4/go/kubernetes/meta/v1"
	"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
)

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		// Connects to the on-prem managed cluster via the current kubeconfig
		// (context selected by `kubectl config use-context <name>`).
		cluster, err := kubernetes.NewProvider(ctx, "onprem", &kubernetes.ProviderArgs{})
		if err != nil {
			return err
		}

		// Namespace for all DESI Explorer resources.
		ns, err := corev1.NewNamespace(ctx, "desi-explorer", &corev1.NamespaceArgs{
			Metadata: &metav1.ObjectMetaArgs{Name: pulumi.String("desi-explorer")},
		}, pulumi.Provider(cluster))
		if err != nil {
			return err
		}

		// Placeholder Deployment so `pulumi up` has something to deploy.
		// TODO: replace with the actual DESI Explorer image (web build served
		// behind the data repository API).
		app, err := appsv1.NewDeployment(ctx, "desi-explorer", &appsv1.DeploymentArgs{
			Metadata: &metav1.ObjectMetaArgs{
				Namespace: ns.Metadata.Name(),
			},
			Spec: &appsv1.DeploymentSpecArgs{
				Selector: &metav1.LabelSelectorArgs{
					MatchLabels: pulumi.ToStringMap(map[string]string{"app": "desi-explorer"}),
				},
				Replicas: pulumi.Int(1),
				Template: &corev1.PodTemplateSpecArgs{
					Metadata: &metav1.ObjectMetaArgs{
						Labels: pulumi.ToStringMap(map[string]string{"app": "desi-explorer"}),
					},
					Spec: &corev1.PodSpecArgs{
						Containers: corev1.ContainerArray{
							&corev1.ContainerArgs{
								Name:  pulumi.String("desi-explorer"),
								Image: pulumi.String("nginx:alpine"),
								Ports: corev1.ContainerPortArray{
									&corev1.ContainerPortArgs{ContainerPort: pulumi.Int(80)},
								},
							},
						},
					},
				},
			},
		}, pulumi.Provider(cluster))
		if err != nil {
			return err
		}

		ctx.Export("namespace", ns.Metadata.Name())
		ctx.Export("deployment", app.Metadata.Name())

		return nil
	})
}