//
// Copyright 2021 The Sigstore 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 app

import (
	"fmt"

	"github.com/sigstore/fulcio/pkg/server"
	"github.com/spf13/cobra"
)

type versionOptions struct {
	json bool
}

var versionOpts = &versionOptions{}

func newVersionCmd() *cobra.Command {
	cmd := &cobra.Command{
		Use:   "version",
		Short: "print build version",
		RunE: func(cmd *cobra.Command, args []string) error {
			return runVersion(versionOpts)
		},
	}

	cmd.Flags().BoolVarP(&versionOpts.json, "json", "j", false, "print JSON instead of text")

	return cmd
}

func runVersion(opts *versionOptions) error {
	v := server.VersionInfo()
	res := v.String()

	if opts.json {
		j, err := v.JSONString()
		if err != nil {
			return fmt.Errorf("unable to generate JSON from version info: %w", err)
		}
		res = j
	}

	fmt.Println(res)
	return nil
}
