package view

import (
	"strings"

	"github.com/derailed/k9s/internal/config"
	"github.com/derailed/k9s/internal/dao"
	"github.com/rs/zerolog/log"
	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
	"k8s.io/apimachinery/pkg/runtime"
)

var aliases = config.NewAliases()

func ToResource(o *unstructured.Unstructured, obj interface{}) error {
	return runtime.DefaultUnstructuredConverter.FromUnstructured(o.Object, &obj)
}

func showCRD(app *App, ns, resource, selection string) {
	log.Debug().Msgf("Launching CRD %q -- %q -- %q", ns, resource, selection)
	tokens := strings.Split(selection, ".")
	_ = tokens
	panic("NYI")
	// if !app.gotoResource(tokens[0]) {
	// 	app.Flash().Errf("Goto %s failed", tokens[0])
	// }
}

func loadAliases() error {
	if err := aliases.Load(); err != nil {
		return err
	}
	for _, gvr := range dao.AllGVRs() {
		meta, err := dao.MetaFor(gvr)
		if err != nil {
			return err
		}
		if _, ok := aliases.Alias[meta.Kind]; ok {
			continue
		}
		aliases.Define(string(gvr), strings.ToLower(meta.Kind), meta.Name)
		if meta.SingularName != "" {
			aliases.Define(string(gvr), meta.SingularName)
		}
		if meta.ShortNames != nil {
			aliases.Define(string(gvr), meta.ShortNames...)
		}
	}

	return nil
}

func loadCustomViewers() MetaViewers {
	m := make(MetaViewers, 30)

	coreRes(m)
	miscRes(m)
	appsRes(m)
	rbacRes(m)
	extRes(m)
	netRes(m)
	batchRes(m)

	return m
}

func coreRes(vv MetaViewers) {
	vv["v1/namespaces"] = MetaViewer{
		viewerFn: NewNamespace,
	}
	vv["v1/pods"] = MetaViewer{
		viewerFn: NewPod,
	}
	vv["v1/services"] = MetaViewer{
		viewerFn: NewService,
	}
	vv["v1/nodes"] = MetaViewer{
		viewerFn: NewNode,
	}
	vv["v1/secrets"] = MetaViewer{
		viewerFn: NewSecret,
	}

	// vv["v1/serviceaccounts"] = MetaViewer{
	// 	listFn:  resource.NewServiceAccountList,
	// 	enterFn: showSAPolicy,
	// }
	// vv["v1/configmaps"] = MetaViewer{
	// 	listFn: resource.NewConfigMapList,
	// }
	// vv["v1/persistentvolumes"] = MetaViewer{
	// 	listFn: resource.NewPersistentVolumeList,
	// }
	// vv["v1/persistentvolumeclaims"] = MetaViewer{
	// 	listFn: resource.NewPersistentVolumeClaimList,
	// }
	// vv["v1/endpoints"] = MetaViewer{
	// 	listFn: resource.NewEndpointsList,
	// }
	// vv["v1/events"] = MetaViewer{
	// 	listFn: resource.NewEventList,
	// }
	// vv["v1/replicationcontrollers"] = MetaViewer{
	// 	viewFn: NewReplicationController,
	// 	listFn: resource.NewReplicationControllerList,
	// }
}

func miscRes(vv MetaViewers) {
	vv["contexts"] = MetaViewer{
		viewerFn: NewContext,
	}
	vv["containers"] = MetaViewer{
		viewerFn: NewContainer,
	}
	vv["portforwards"] = MetaViewer{
		viewerFn: NewPortForward,
	}
	vv["screendumps"] = MetaViewer{
		viewerFn: NewScreenDump,
	}

	// vv["storage.k8s.io/v1/storageclasses"] = MetaViewer{
	// 	listFn: resource.NewStorageClassList,
	// }
	// vv["users"] = MetaViewer{
	// 	viewFn: NewSubject,
	// }
	// vv["groups"] = MetaViewer{
	// 	viewFn: NewSubject,
	// }
	vv["benchmarks"] = MetaViewer{
		viewerFn: NewBenchmark,
	}
	vv["aliases"] = MetaViewer{
		viewerFn: NewAlias,
	}
}

func appsRes(vv MetaViewers) {
	vv["apps/v1/deployments"] = MetaViewer{
		viewerFn: NewDeploy,
	}
	vv["apps/v1/replicasets"] = MetaViewer{
		viewerFn: NewReplicaSet,
	}
	vv["apps/v1/statefulsets"] = MetaViewer{
		viewerFn: NewStatefulSet,
	}
	vv["apps/v1/daemonsets"] = MetaViewer{
		viewerFn: NewDaemonSet,
	}
	vv["extensions/v1beta1/daemonsets"] = MetaViewer{
		viewerFn: NewDaemonSet,
	}
}

func rbacRes(vv MetaViewers) {
	vv["rbac"] = MetaViewer{
		enterFn: showRBAC,
	}
	vv["rbac.authorization.k8s.io/v1/clusterroles"] = MetaViewer{
		enterFn: showRBAC,
	}
	vv["rbac.authorization.k8s.io/v1/roles"] = MetaViewer{
		enterFn: showRBAC,
	}
	vv["rbac.authorization.k8s.io/v1/clusterrolebindings"] = MetaViewer{
		enterFn: showRBAC,
	}
	vv["rbac.authorization.k8s.io/v1/rolebindings"] = MetaViewer{
		enterFn: showRBAC,
	}
}

func extRes(vv MetaViewers) {
	// vv["apiextensions.k8s.io/v1/customresourcedefinitions"] = MetaViewer{
	// 	listFn:  resource.NewCustomResourceDefinitionList,
	// 	enterFn: showCRD,
	// }
	// vv["apiextensions.k8s.io/v1beta1/customresourcedefinitions"] = MetaViewer{
	// 	listFn:  resource.NewCustomResourceDefinitionList,
	// 	enterFn: showCRD,
	// }
}

func netRes(vv MetaViewers) {
	// vv["networking.k8s.io/v1/networkpolicies"] = MetaViewer{
	// 	listFn: resource.NewNetworkPolicyList,
	// }
	// vv["extensions/v1beta1/ingresses"] = MetaViewer{
	// 	listFn: resource.NewIngressList,
	// }
}

func batchRes(vv MetaViewers) {
	vv["batch/v1beta1/cronjobs"] = MetaViewer{
		viewerFn: NewCronJob,
	}
	vv["batch/v1/jobs"] = MetaViewer{
		viewerFn: NewJob,
	}
}

// BOZO!!
// func policyRes(vv MetaViewers) {
// 	vv["policy/v1beta1/poddisruptionbudgets"] = MetaViewer{
// 		listFn: resource.NewPDBList,
// 	}
// }

// func autoscalingRes(vv MetaViewers) {
// 	vv["autoscaling/v1/horizontalpodautoscalers"] = MetaViewer{
// 		listFn: resource.NewHorizontalPodAutoscalerV1List,
// 	}
// }