// Copyright 2024 Florian Beisel
//
// 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 auth

import (
	"time"

	"git.beisel.it/florian/hostname-service/config"
	"github.com/dgrijalva/jwt-go"
)

func GenerateToken(username string) (string, error) {
	jwtKeyBytes := []byte(config.GlobalConfig.JwtKey)

	expirationTime := time.Now().Add(1 * time.Hour)
	claims := &jwt.StandardClaims{
		Subject:   username,
		ExpiresAt: expirationTime.Unix(),
	}
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
	tokenString, err := token.SignedString(jwtKeyBytes)

	return tokenString, err
}