/*
 * Copyright 2020-2030 码匠君<herodotus@aliyun.com>
 *
 * ThingsBrain 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.
 *
 * ThingsBrain 是 Dante Cloud 系统生态产品，采用 APACHE LICENSE 2.0 开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1. 请不要删除和修改根目录下的LICENSE文件。
 * 2. 请不要删除和修改 ThingsBrain 源码头部的版权声明。
 * 3. 请保留源码和相关描述文件的项目出处，作者声明等。
 * 4. 分发源码时候，请注明软件出处 <https://gitee.com/dromara/dante-cloud>
 * 5. 在修改包名，模块名称，项目代码等时，请注明软件出处 <https://gitee.com/dromara/dante-cloud>
 * 6. 若您的项目无法满足以上几点，可申请商业授权
 */

package cn.herodotus.thingsbrain.platform.authentication.emqx;

import cn.herodotus.dante.message.emqx.definition.domain.AbstractEmqxDomain;
import cn.herodotus.thingsbrain.persistence.commons.domain.DeviceConnection;
import cn.herodotus.thingsbrain.persistence.commons.manager.IdentifierManager;
import cn.herodotus.thingsbrain.platform.authentication.mqtt.MqttIdentificationHandler;
import cn.herodotus.thingsbrain.platform.commons.domain.MqttClientIdFactory;
import org.apache.commons.lang3.ObjectUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.core.convert.converter.Converter;

/**
 * <p>Description: Emqx 客户端上线通用代码提取抽象类 </p>
 *
 * @author : gengwei.zheng
 * @date : 2025/7/2 14:50
 */
abstract class AbstractEmqxConnectedListener<D extends AbstractEmqxDomain, E extends ApplicationEvent> implements ApplicationListener<E> {

    private static final Logger log = LoggerFactory.getLogger(AbstractEmqxConnectedListener.class);

    private final IdentifierManager identifierManager;
    private final MqttIdentificationHandler mqttIdentificationHandler;
    private final Converter<D, DeviceConnection> toDeviceConnection;

    protected AbstractEmqxConnectedListener(IdentifierManager identifierManager, MqttIdentificationHandler mqttIdentificationHandler, Converter<D, DeviceConnection> toDeviceConnection) {
        this.identifierManager = identifierManager;
        this.mqttIdentificationHandler = mqttIdentificationHandler;
        this.toDeviceConnection = toDeviceConnection;
    }

    protected void connected(D data) {
        String mqttClientId = data.getClientId();
        String mqttUsername = data.getUsername();

        log.debug("[ThingsBrain] |- Mqtt client [{}] connected.", mqttClientId);

        MqttClientIdFactory factory = MqttClientIdFactory.of(mqttClientId).parse();

        // 如果 clientId 是签名形式，则认为是一机一密或者一型一密的注册认证。因为正常连接使用 ProductKey、DeviceName和 DeviceSecret 不在需要签名
        if (factory.getSignature()) {
            if (ObjectUtils.isNotEmpty(factory.getAuthType())) {
                log.info("[ThingsBrain] |- PROCESSING mqtt per product identification (registration and authentication).");
                mqttIdentificationHandler.identifyPerProduct(factory.getClientId(), mqttUsername, factory.getAuthType());
            } else {
                log.info("[ThingsBrain] |- PROCESSING mqtt per device identification (registration and authentication).");
                mqttIdentificationHandler.identifyPerDevice(factory.getClientId());
            }
        } else {
            DeviceConnection deviceConnection = toDeviceConnection.convert(data);
            identifierManager.connected(factory.getClientId(), deviceConnection);
        }
    }
}
