package cn.slienceme.gulimall.order.config;

import org.springframework.amqp.core.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;

/**
 * 自动创建相关交换机和队列
 */
@Configuration
public class MyRabbitmqConfig {

    /**
     * String name 队列名字
     * boolean durable 是否持久化
     * boolean autoDelete 是否自动删除
     */
    @Bean
    public Exchange orderEventExchange() {
        return new TopicExchange("order-event-exchange", true, false);
    }

    /**
     * 延迟队列
     *
     * @return
     */
    @Bean
    public Queue orderDelayQueue() {

        /**
         * String name 队列名字
         * boolean durable 是否持久化
         * boolean exclusive 是否排他
         * boolean autoDelete 是否自动删除
         * Map<String, Object> arguments 属性
         * x-dead-letter-exchange: 死信交换机
         * x-dead-letter-routing-key: 死信路由键
         * x-message-ttl: 消息过期时间(ms) 60000=1分钟
         */
        HashMap<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", "order-event-exchange");
        arguments.put("x-dead-letter-routing-key", "order.release.order");
        arguments.put("x-message-ttl", 600000);
        return new Queue("order.delay.queue", true, false, false, arguments);
    }

    /**
     * 普通队列
     *
     * @return
     */
    @Bean
    public Queue orderReleaseQueue() {

        Queue queue = new Queue("order.release.order.queue", true, false, false);

        return queue;
    }

    /**
     * 创建订单的binding
     *
     * @return
     */
    @Bean
    public Binding orderCreateBinding() {
        /**
         * String destination, 目的地（队列名或者交换机名字）
         * DestinationType destinationType, 目的地类型（Queue、Exhcange）
         * String exchange,
         * String routingKey,
         * Map<String, Object> arguments
         * */
        return new Binding("order.delay.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.create.order",
                null);
    }

    @Bean
    public Binding orderReleaseBinding() {
        return new Binding("order.release.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.order",
                null);
    }


    @Bean
    public Binding orderReleaseOrderBinding() {
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.other.#",
                null);
    }

    @Bean
    public Binding orderReleaseOther() {
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.other.#",
                null);
    }


    /**
     * 商品秒杀队列
     *
     * @return
     */
    @Bean
    public Queue orderSecKillOrrderQueue() {
        Queue queue = new Queue("order.seckill.order.queue", true, false, false);
        return queue;
    }

    @Bean
    public Binding orderSecKillOrrderQueueBinding() {
        //String destination, DestinationType destinationType, String exchange, String routingKey,
        // 			Map<String, Object> arguments
        Binding binding = new Binding(
                "order.seckill.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.seckill.order",
                null);

        return binding;
    }


}
