package optional

import (
	"embed"
	"io/fs"

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

//go:embed config
var configFS embed.FS

// Plugin is the golem15.optional plugin. Greeter may use it without importing this package.
type Plugin struct{}

func (p *Plugin) ID() string         { return "golem15.optional" }
func (p *Plugin) Requires() []string { return nil }

func (p *Plugin) Register(app *backpack.App) error {
	if app == nil {
		return nil
	}
	return app.Publish[pact.OptionalMessage](extra{})
}

func (p *Plugin) Boot(*backpack.App) error { return nil }

func (p *Plugin) ConfigFS() fs.FS { return configFS }

type extra struct{}

func (extra) Message() string { return "hello-from-optional" }

var (
	_ pact.HasConfig       = (*Plugin)(nil)
	_ pact.OptionalMessage = extra{}
)

func init() {
	party.Register(&Plugin{})
}