// Package automc wires automc-specific extensions onto upstream mc-router.
//
// All behavior is opt-in via env vars; when AUTOMC_DSN is unset, Wire is a no-op
// and the binary behaves exactly like upstream itzg/mc-router.
package automc

import (
	"context"
	"os"

	"github.com/sirupsen/logrus"
)

func Wire(ctx context.Context) error {
	dsn := os.Getenv("AUTOMC_DSN")
	if dsn == "" {
		return nil
	}
	waker := newWakerConfig(os.Getenv("AUTOMC_WAKER_URL"), os.Getenv("AUTOMC_WAKER_TOKEN"))
	s := newSyncer(dsn, waker)
	go s.run(ctx)
	logrus.Info("automc: pg route sync started")

	// Operator UI on a separate port — upstream's API_BINDING stays
	// JSON-only and untouched. Enable by setting AUTOMC_UI_BINDING (e.g.
	// ":8082"); leave unset to skip and behave exactly like upstream.
	if uiBinding := os.Getenv("AUTOMC_UI_BINDING"); uiBinding != "" {
		bus := NewLogBus(500)
		logrus.AddHook(&logrusBusHook{bus: bus})
		startUI(ctx, uiBinding, bus)
	}
	return nil
}