dolar/internal/adapter/nats/nats.go

package nats

import (
	"encoding/json"
	"fmt"
	"log/slog"

	"git.maximotejeda.com/maximo/dolar/internal/application/core/domain"
	"github.com/nats-io/nats.go"

)

type Adapter struct {
	conn *nats.Conn
	log  *slog.Logger
}

func NewAdapter(dataSourceURL string) (*Adapter, error) {
	log := slog.Default()
	log = log.With("adapter", "nats")
	conn, err := nats.Connect(dataSourceURL)
	if err != nil {
		log.Error("connecting nats", "error", err)
		return nil, err
	}
	return &Adapter{conn: conn, log: log}, nil
}

func (a Adapter) ChangeRegistered(change *domain.Message) error {
	if change == nil {
		return fmt.Errorf("nil structure")
	}
	data, err := json.Marshal(change)
	if err != nil {
		return fmt.Errorf("marshaling struct: %w", err)
	}
	err  = a.conn.Publish("dolar-crawler", data)
	if err != nil {
		a.log.Error(err.Error())
	}
	err = a.conn.Publish("dolar-bot-change", data)
	if err != nil {
		a.log.Error(err.Error())
	}
	return nil
}

func (a Adapter) NewInstRegistered(change *domain.Message) error {
	if change == nil {
		return fmt.Errorf("nil structure")
	}
	data, err := json.Marshal(change)
	if err != nil {
		return fmt.Errorf("marshaling struct: %w", err)
	}
	err = a.conn.Publish("dolar-crawler", data)
	if err != nil {
		a.log.Error(err.Error())
	}
	err = a.conn.Publish("dolar-bot-change", data)
	if err != nil {
		a.log.Error(err.Error())
	}
	return nil
}