package sitemap

import (
	"context"

	"git.golem15.com/golem15/sm-sitemap-plugin/classes"
	"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 saved
// record of a content type moves the lastmod of its addresses when the
// save changed something real, a deleted one leaves the files, and both
// queue a debounced rebuild (classes.RecordSaved, classes.RecordDeleted).
// 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.sitemap", func(ctx context.Context, ev *pact.RecordSaved) error {
		return classes.RecordSaved(ctx, p.app, ev)
	})
	app.Events.Listen("golem15.sitemap", func(ctx context.Context, ev *pact.RecordDeleted) error {
		return classes.RecordDeleted(ctx, p.app, ev)
	})
}