package rabbit

import (
	"context"
	"datart/config"

	"github.com/Azure/go-amqp"
	rmq "github.com/rabbitmq/rabbitmq-amqp-go-client/pkg/rabbitmqamqp"
)

type XQK struct {
	Exchange string `json:"exchange" yaml:"exchange"`
	Queue    string `json:"queue" yaml:"queue"`
	Key      string `json:"key" yaml:"key"`
	QueueCap int64  `json:"queuecap" yaml:"queuecap"`
}

var client *rabbitClient

func init() {
	endpoints, err := genEndpoints("default")
	if err != nil {
		panic(err)
	}

	client = new(rabbitClient)
	client.env = rmq.NewClusterEnvironment(endpoints)
	conn, err := client.env.NewConnection(context.Background())
	if err != nil {
		panic(err)
	}
	client.conn = conn
}

func Close(ctx context.Context) error {
	return client.Close(ctx)
}

func genEndpoints(tag string) ([]rmq.Endpoint, error) {
	confs := config.Conf().RabbitConf(tag)
	endpoints := make([]rmq.Endpoint, len(confs))

	for i, conf := range confs {
		tlsConfig, err := conf.GetTLS().GenTLSConfig(tag)
		if err != nil {
			return nil, err
		}

		var options *rmq.AmqpConnOptions
		var tls bool
		if tlsConfig != nil {
			options = &rmq.AmqpConnOptions{
				SASLType:  amqp.SASLTypeExternal(""),
				TLSConfig: tlsConfig}
			tls = true
		}

		endpoints[i].Address = conf.GenAddress(tls)
		endpoints[i].Options = options
	}

	return endpoints, nil
}