package com.zhitan.config.mqtt;

import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.mqtt.core.DefaultMqttPahoClientFactory;
import org.springframework.integration.mqtt.core.MqttPahoClientFactory;

@Configuration
public class MqttConfig {

    @Value("${spring.mqtt.broker-url}")
    private String brokerUrl;

    @Value("${spring.mqtt.username}")
    private String username;

    @Value("${spring.mqtt.password}")
    private String password;

    @Value("${spring.mqtt.timeout}")
    private int timeout;

    @Value("${spring.mqtt.keep-alive}")
    private int keepAlive;

    // 配置MQTT客户端工厂
    @Bean
    public MqttPahoClientFactory mqttClientFactory() {
        DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
        MqttConnectOptions options = new MqttConnectOptions();
        options.setServerURIs(new String[]{brokerUrl});
        options.setUserName(username);
        options.setPassword(password.toCharArray());
        options.setConnectionTimeout(timeout);
        options.setKeepAliveInterval(keepAlive);
        options.setAutomaticReconnect(true); // 自动重连
        factory.setConnectionOptions(options);
        return factory;
    }
}