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// Copyright 2022 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 tuf
import (
"fmt"
"strings"
)
type UsageKind int
const (
UnknownUsage UsageKind = iota
Fulcio
Rekor
CTFE
)
var toUsageString = map[UsageKind]string{
UnknownUsage: "Unknown",
Fulcio: "Fulcio",
Rekor: "Rekor",
CTFE: "CTFE",
}
func (u UsageKind) String() string {
return toUsageString[u]
}
func (u UsageKind) MarshalText() ([]byte, error) {
str := u.String()
if len(str) == 0 {
return nil, fmt.Errorf("error while marshalling, int(UsageKind)=%d not valid", int(u))
}
return []byte(u.String()), nil
}
func (u *UsageKind) UnmarshalText(text []byte) error {
switch strings.ToLower(string(text)) {
case "unknown":
*u = UnknownUsage
case "fulcio":
*u = Fulcio
case "rekor":
*u = Rekor
case "ctfe":
*u = CTFE
default:
return fmt.Errorf("error while unmarshalling, UsageKind=%v not valid", string(text))
}
return nil
}
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