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/**
 * Copyright © 2014-2021 The SiteWhere 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 com.sitewhere.microservice.security;

import com.sitewhere.spi.microservice.IMicroservice;

import io.sitewhere.k8s.crd.tenant.SiteWhereTenant;

/**
 * {@link ThreadLocal} which tracks the credentials for the authenticated user.
 */
public class UserContext {

    /** Thread local variable */
    private static final ThreadLocal CONTEXT = new ThreadLocal<>();

    public static void clearContext() {
	CONTEXT.remove();
    }

    public static SiteWhereAuthentication getCurrentUser() {
	return CONTEXT.get();
    }

    public static SiteWhereTenant getCurrentTenant(IMicroservice microservice) {
	SiteWhereAuthentication auth = getCurrentUser();
	if (auth == null) {
	    return null;
	}
	return microservice.getSiteWhereKubernetesClient()
		.getTenantForToken(microservice.getInstanceSettings().getKubernetesNamespace(), auth.getTenantToken());
    }

    public static String getCurrentTenantId() {
	SiteWhereAuthentication auth = getCurrentUser();
	return auth != null ? auth.getTenantToken() : null;
    }

    public static void setContext(SiteWhereAuthentication context) {
	CONTEXT.set(context);
    }
}