package com.miyzh.config;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;

/**
 * @Description: RabbitConfig
 * @Author: lyt
 * @Date: 2019/6/21 11:21
 */
@Configuration
public class RabbitConfig {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Value("${spring.rabbitmq.host}")
    private String host;

    @Value("${spring.rabbitmq.port}")
    private int port;

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

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



    public static final String EXCHANGE_SETTLE = "settexchange";



    public static final String QUEUE_SETTLE = "confirmSettle";
    public static final String QUEUE_PRESETTLE = "preSettle";


    public static final String ROUTINGKEY_CONFIRM = "confirmSettle";
    public static final String ROUTINGKEY_PRE = "preSettle";

    @Bean
    public ConnectionFactory connectionFactory() {
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory(host,port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        connectionFactory.setVirtualHost("/");
        connectionFactory.setPublisherConfirms(true);
        return connectionFactory;
    }

    @Bean
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    //必须是prototype类型
    public RabbitTemplate rabbitTemplate() {
        RabbitTemplate template = new RabbitTemplate(connectionFactory());
        return template;
    }

    /**
     * 针对消费者配置
     * 1. 设置交换机类型
     * 2. 将队列绑定到交换机
     FanoutExchange: 将消息分发到所有的绑定队列，无routingkey的概念
     HeadersExchange ：通过添加属性key-value匹配
     DirectExchange:按照routingkey分发到指定队列
     TopicExchange:多关键字匹配
     */

    @Bean
    public DirectExchange directExchange() {
        return new DirectExchange(EXCHANGE_SETTLE);
    }

    /**
     * 获取队列Pre
     * @return
     */
    @Bean
    public Queue queuePre() {
        //队列持久
        return new Queue(QUEUE_PRESETTLE, true);
    }
    @Bean
    public Binding bindingPre() {

        return BindingBuilder.bind(queuePre()).to(directExchange()).with(RabbitConfig.ROUTINGKEY_PRE);
    }
    /**
     * 获取队列confirm
     * @return
     */
    @Bean
    public Queue queueConfirm() {
        //队列持久
        return new Queue(QUEUE_SETTLE, true);
    }
    @Bean
    public Binding binding() {

        return BindingBuilder.bind(queueConfirm()).to(directExchange()).with(RabbitConfig.ROUTINGKEY_CONFIRM);
    }
}