/*
Copyright 2020 The Flux authors

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package main

import (
	"context"
	"fmt"

	"github.com/manifoldco/promptui"
	"github.com/spf13/cobra"
	"k8s.io/apimachinery/pkg/types"

	"github.com/fluxcd/flux2/internal/utils"
	notificationv1 "github.com/fluxcd/notification-controller/api/v1beta1"
)

var deleteAlertCmd = &cobra.Command{
	Use:   "alert [name]",
	Short: "Delete a Alert resource",
	Long:  "The delete alert command removes the given Alert from the cluster.",
	Example: `  # Delete an Alert and the Kubernetes resources created by it
  flux delete alert main
`,
	RunE: deleteAlertCmdRun,
}

func init() {
	deleteCmd.AddCommand(deleteAlertCmd)
}

func deleteAlertCmdRun(cmd *cobra.Command, args []string) error {
	if len(args) < 1 {
		return fmt.Errorf("alert name is required")
	}
	name := args[0]

	ctx, cancel := context.WithTimeout(context.Background(), timeout)
	defer cancel()

	kubeClient, err := utils.KubeClient(kubeconfig, kubecontext)
	if err != nil {
		return err
	}

	namespacedName := types.NamespacedName{
		Namespace: namespace,
		Name:      name,
	}

	var alert notificationv1.Alert
	err = kubeClient.Get(ctx, namespacedName, &alert)
	if err != nil {
		return err
	}

	if !deleteSilent {
		prompt := promptui.Prompt{
			Label:     "Are you sure you want to delete this Alert",
			IsConfirm: true,
		}
		if _, err := prompt.Run(); err != nil {
			return fmt.Errorf("aborting")
		}
	}

	logger.Actionf("deleting alert %s in %s namespace", name, namespace)
	err = kubeClient.Delete(ctx, &alert)
	if err != nil {
		return err
	}
	logger.Successf("alert deleted")

	return nil
}
