package store

import (
	"errors"
	"fmt"

	"codeberg.org/danjones000/combluotion/config"
)

var ErrNoFactory = errors.New("unknown factory")

type StoreFactory func(config.Store) (Store, error)

var factories map[string]StoreFactory

func init() {
	factories = make(map[string]StoreFactory)
}

func AddFactory(name string, f StoreFactory) {
	factories[name] = f
}

func GetFactory(name string) StoreFactory {
	return factories[name]
}

func MakeStore(name string, conf config.Config) (Store, error) {
	st, err := conf.Store(name)
	if err != nil {
		return nil, err
	}

	if name == "" {
		name = st.Name()
	}

	f, ok := factories[name]
	if !ok {
		return nil, fmt.Errorf("%w: %s", ErrNoFactory, name)
	}
	return f(st)
}