/*
Copyright 2022 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/fluxcd/flux2/internal/oci"
	"github.com/fluxcd/flux2/pkg/printers"
	"github.com/spf13/cobra"
)

var listArtifactsCmd = &cobra.Command{
	Use:   "artifacts",
	Short: "list artifacts",
	Long: `The list command fetches the tags and their metadata from a remote OCI repository.
The list command uses the credentials from '~/.docker/config.json'.`,
	Example: `# list the artifacts stored in an OCI repository
flux list artifact ghcr.io/org/manifests/app
`,
	RunE: listArtifactsCmdRun,
}

func init() {
	listCmd.AddCommand(listArtifactsCmd)
}

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

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

	metas, err := oci.List(ctx, url)
	if err != nil {
		return err
	}

	var rows [][]string
	for _, meta := range metas {
		rows = append(rows, []string{meta.URL, meta.Digest, meta.Source, meta.Revision})
	}

	err = printers.TablePrinter([]string{"artifact", "digest", "source", "revision"}).Print(cmd.OutOrStdout(), rows)
	if err != nil {
		return err
	}

	return nil

}