/**
 * Copyright © 2016-2018 The Thingsboard 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 org.thingsboard.server.common.transport.quota.tenant;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.stereotype.Component;
import org.thingsboard.server.common.transport.quota.inmemory.IntervalRegistryLogger;

import java.util.Map;
import java.util.concurrent.TimeUnit;

@Slf4j
@Component
@ConditionalOnProperty(prefix = "quota.rule.tenant", value = "enabled", havingValue = "true", matchIfMissing = false)
public class TenantIntervalRegistryLogger extends IntervalRegistryLogger {

    private final long logIntervalMin;

    public TenantIntervalRegistryLogger(@Value("${quota.rule.tenant.log.topSize}") int topSize,
                                        @Value("${quota.rule.tenant.log.intervalMin}") long logIntervalMin,
                                        TenantMsgsIntervalRegistry intervalRegistry) {
        super(topSize, logIntervalMin, intervalRegistry);
        this.logIntervalMin = logIntervalMin;
    }

    protected void log(Map<String, Long> top, int uniqHosts, long requestsCount) {
        long rps = requestsCount / TimeUnit.MINUTES.toSeconds(logIntervalMin);
        StringBuilder builder = new StringBuilder("Tenant Quota Statistic : ");
        builder.append("uniqTenants : ").append(uniqHosts).append("; ");
        builder.append("requestsCount : ").append(requestsCount).append("; ");
        builder.append("RPS : ").append(rps).append(" ");
        builder.append("top -> ");
        for (Map.Entry<String, Long> host : top.entrySet()) {
            builder.append(host.getKey()).append(" : ").append(host.getValue()).append("; ");
        }

        log.info(builder.toString());
    }
}
