package evio

import (
	"context"
	"sync/atomic"
)

var defaultEvio atomic.Pointer[simple]

func init() {
	evio := New(NewMatcher).(*simple)
	defaultEvio.Store(evio)
}

func Default() Evio {
	return defaultEvio.Load()
}

func Call(topic string, data any) {
	Default().Call(topic, data)
}

func Publish(topic string, data any) error {
	return Default().Publish(topic, data)
}

func Subscribe(topic string, handler Handler, opts ...SubscribeOption) (func() bool, error) {
	return Default().Subscribe(topic, handler, opts...)
}

func Listen(topic string) (stop func(), data <-chan any, err error) {
	return Default().Listen(topic)
}

func Start(ctx context.Context) error {
	select {
	case <-ctx.Done():
		return ctx.Err()
	default:
		return Default().Start()
	}
}

func Stop() error {
	return Default().Stop()
}