package seo

import (
	"context"

	"git.golem15.com/golem15/summercms/modules/backpack"
	"git.golem15.com/golem15/summercms/modules/pact"
)

// listen subscribes to the framework's record events (D-92): a deleted
// record of a content type loses its SEO entries (kept in history), and a
// created one gets its address snapshot. Listener errors are logged by the
// bus and never fail the write that fired them.
func (p *Plugin) listen(app *backpack.App) {
	if app == nil || app.Events == nil {
		return
	}
	app.Events.Listen("golem15.seo", func(ctx context.Context, ev *pact.RecordDeleted) error {
		svc := p.Service()
		if svc == nil {
			return nil
		}
		return svc.RecordDeleted(ctx, ev)
	})
	app.Events.Listen("golem15.seo", func(ctx context.Context, ev *pact.RecordSaved) error {
		svc := p.Service()
		if svc == nil || ev == nil || !ev.Created {
			return nil
		}
		return svc.RecordCreated(ctx, ev)
	})
}