package test

import (
	"fmt"
	"github.com/nats-io/nats-server/v2/server"
	"github.com/nats-io/nats.go"
	"testing"
	"time"
)

func TestNats_server(t *testing.T) {
	opts := &server.Options{
		ServerName: "Yunlot-nats-server",
		Port:       6503,
	}

	// Initialize new server with options
	ns, err := server.NewServer(opts)

	if err != nil {
		panic(any(err))
	}

	// Start the server via goroutine
	go ns.Start()

	// Wait for server to be ready for connections
	if !ns.ReadyForConnections(4 * time.Second) {
		panic(any("not ready for connection"))
	}

	// Connect to server
	nc, err := nats.Connect(ns.ClientURL())

	if err != nil {
		panic(any(err))
	}

	subject := "my-subject"

	// Subscribe to the subject
	nc.Subscribe(subject, func(msg *nats.Msg) {
		// Print message data
		data := string(msg.Data)
		fmt.Println(data)

		// Shutdown the server (optional)
		ns.Shutdown()
	})

	// Publish data to the subject
	nc.Publish(subject, []byte("Hello embedded NATS!"))

	// Wait for server shutdown
	ns.WaitForShutdown()
}