package internal

import (
	"errors"
	"fmt"
)

var (
	ErrInvalidStore = errors.New("error: invalid store")
	ErrURLNotFound  = errors.New("error: url not found")
)

type Store interface {
	Merge() error
	Close() error
	Sync() error

	DelURL(hash string) error
	HasURL(hash string) bool
	GetURL(hash string) (*URL, error)
	SetURL(hash string, url *URL) error
	URLCount() int64
	ForEachURL(f func(*URL) error) error
}

func NewStore(store string) (Store, error) {
	u, err := ParseURI(store)
	if err != nil {
		return nil, fmt.Errorf("error parsing store uri: %s", err)
	}

	switch u.Type {
	case "bitcask":
		return newBitcaskStore(u.Path)
	default:
		return nil, ErrInvalidStore
	}
}