package exchange

import (
	"github.com/streadway/amqp"
	"log"
	"skcks.cn/study/rabbitmq/types"
)

const DefaultDirectExchangeName = "direct_exchange"

func DeclareDirect(channel *amqp.Channel, name string, options ...types.DeclareOptionFunc) error {
	defaultOption := &types.DeclareOption{
		Name:       name,
		Kind:       "direct",
		Durable:    true,
		AutoDelete: false, //auto-deleted
		Internal:   false, //internal
		NoWait:     false, //noWait
		Args:       nil,
	}

	option := types.MergeExchangeOptionsWithDefault(defaultOption, options)

	// 声明 exchange
	if err := channel.ExchangeDeclare(
		option.Name,       //name
		option.Kind,       //exchangeType
		option.Durable,    //durable
		option.AutoDelete, //auto-deleted
		option.Internal,   //internal
		option.NoWait,     //noWait
		option.Args,       // ,         //arguments
	); err != nil {
		log.Println("Failed to declare a exchange:", err.Error())
		return err
	}
	return nil
}