package view

import (
	"sigs.k8s.io/yaml"

	"github.com/derailed/k9s/internal/dao"
	"github.com/derailed/k9s/internal/ui"
	"github.com/gdamore/tcell"
	v1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
	"k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime"
)

// Secret presents a secret viewer.
type Secret struct {
	ResourceViewer
}

// NewSecrets returns a new viewer.
func NewSecret(gvr dao.GVR) ResourceViewer {
	s := Secret{
		ResourceViewer: NewBrowser(gvr),
	}
	s.SetBindKeysFn(s.bindKeys)

	return &s
}

func (s *Secret) bindKeys(aa ui.KeyActions) {
	aa.Add(ui.KeyActions{
		tcell.KeyCtrlX: ui.NewKeyAction("Decode", s.decodeCmd, true),
	})
}

func (s *Secret) decodeCmd(evt *tcell.EventKey) *tcell.EventKey {
	path := s.GetTable().GetSelectedItem()
	if path == "" {
		return evt
	}

	o, err := s.App().factory.Get("v1/secrets", path, labels.Everything())
	if err != nil {
		s.App().Flash().Err(err)
		return nil
	}

	var secret v1.Secret
	err = runtime.DefaultUnstructuredConverter.FromUnstructured(o.(*unstructured.Unstructured).Object, &secret)
	if err != nil {
		s.App().Flash().Err(err)
		return nil
	}

	d := make(map[string]string, len(secret.Data))
	for k, val := range secret.Data {
		d[k] = string(val)
	}
	raw, err := yaml.Marshal(d)
	if err != nil {
		s.App().Flash().Errf("Error decoding secret %s", err)
		return nil
	}

	details := NewDetails("Decoder")
	details.SetSubject(path)
	details.SetTextColor(s.App().Styles.FgColor())
	details.SetText(colorizeYAML(s.App().Styles.Views().Yaml, string(raw)))
	details.ScrollToBeginning()
	s.App().inject(details)

	return nil
}