// Copyright 2025 Google LLC
//
// 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 jwtsignatureconfig provides an instance of the Config for JWT Signature primitives.
package jwtsignatureconfig

import (
	"fmt"

	"github.com/tink-crypto/tink-go/v2/internal/config"
	"github.com/tink-crypto/tink-go/v2/internal/internalapi"
	"github.com/tink-crypto/tink-go/v2/jwt"
)

var configV0 = mustCreateConfigV0()

func mustCreateConfigV0() config.Config {
	builder := config.NewBuilder()
	if err := jwt.RegisterJWTECDSAPrimitiveConstructor(builder, internalapi.Token{}); err != nil {
		panic(fmt.Sprintf("mustCreateConfigV0() failed to register JWT ECDSA: %v", err))
	}
	if err := jwt.RegisterJWTRSASSAPKCS1PrimitiveConstructor(builder, internalapi.Token{}); err != nil {
		panic(fmt.Sprintf("mustCreateConfigV0() failed to register JWT RSA SSA PKCS1: %v", err))
	}
	if err := jwt.RegisterJWTRSASSAPSSPrimitiveConstructor(builder, internalapi.Token{}); err != nil {
		panic(fmt.Sprintf("mustCreateConfigV0() failed to register JWT RSA SSA PSS: %v", err))
	}
	return builder.Build()
}

// V0 returns an instance of the ConfigV0 for JWT Signature primitives.
func V0() config.Config { return configV0 }