package com.shallowan.seckill.rabbitmq;

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

import java.util.HashMap;
import java.util.Map;


/**
 * @author ShallowAn
 */
@Configuration
public class MQConfig {
    public static final String SECKILL_QUEUE = "seckill.queue";
    public static final String QUEUE = "queue";
    public static final String HEADER_QUEUE = "header.queue";
    public static final String TOPIC_QUEUE1 = "topic.queue1";
    public static final String TOPIC_QUEUE2 = "topic.queue2";
    public static final String TOPIC_EXCHANGE = "topicExchage";
    public static final String FANOUT_EXCHANGE = "fanoutExchage";
    public static final String HEADERS_EXCHANGE = "headersExchage";


    @Bean
    public Queue seckillQueue() {
        return new Queue(SECKILL_QUEUE, true);
    }

    /**
     * Direct模式 交换机Exchange
     */
    @Bean
    public Queue queue() {
        return new Queue(QUEUE, true);
    }

    /**
     * Topic模式 交换机Exchange
     */

    @Bean
    public Queue topicQueue1() {
        return new Queue(TOPIC_QUEUE1, true);
    }

    @Bean
    public Queue topicQueue2() {
        return new Queue(TOPIC_QUEUE2, true);
    }

    @Bean
    public TopicExchange topicExchange() {
        return new TopicExchange(TOPIC_EXCHANGE);
    }

    @Bean
    public Binding topicBinding1() {
        return BindingBuilder.bind(topicQueue1()).to(topicExchange()).with("topic.key1");
    }

    @Bean
    public Binding topicBinding2() {
        return BindingBuilder.bind(topicQueue2()).to(topicExchange()).with("topic.#");
    }

    /**
     * Fanout模式 交换机Exchange
     */
    @Bean
    public FanoutExchange fanoutExchange() {
        return new FanoutExchange(FANOUT_EXCHANGE);
    }

    @Bean
    public Binding fanoutBinding1() {
        return BindingBuilder.bind(topicQueue1()).to(fanoutExchange());
    }

    @Bean
    public Binding fanoutBinding2() {
        return BindingBuilder.bind(topicQueue2()).to(fanoutExchange());
    }

    /**
     * Header 交换机Exchange
     */
    @Bean
    public HeadersExchange headersExchange() {
        return new HeadersExchange(HEADERS_EXCHANGE);
    }

    @Bean
    public Queue headerQueue() {
        return new Queue(HEADER_QUEUE, true);
    }

    @Bean
    public Binding headersBinding() {
        Map<String, Object> map = new HashMap<>();
        map.put("header1", "value1");
        map.put("header2", "value2");
        return BindingBuilder.bind(headerQueue()).to(headersExchange()).whereAll(map).match();
    }
}
