/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.airavata.agent.connection.service;

import java.util.Map;
import org.apache.airavata.model.security.AuthzToken;

public class UserContext {

    private static final ThreadLocal<AuthzToken> AUTHZ_TOKEN = new ThreadLocal<>();

    public static AuthzToken authzToken() {
        return AUTHZ_TOKEN.get();
    }

    public static void setAuthzToken(AuthzToken token) {
        AUTHZ_TOKEN.set(token);
    }

    public static String username() {
        return getClaim("userName");
    }

    public static String gatewayId() {
        return getClaim("gatewayID");
    }

    private static String getClaim(String claimId) {
        return AUTHZ_TOKEN.get().getClaimsMap().entrySet().stream()
                .filter(entry -> entry.getKey().equalsIgnoreCase(claimId))
                .map(Map.Entry::getValue)
                .findFirst()
                .orElseThrow(() ->
                        new IllegalArgumentException("Missing '" + claimId + "' claim in the authentication token"));
    }
}
