package session

import (
	"crypto/rand"
	"encoding/base64"
	"sync"
	"time"
)

type Store struct {
	sessions sync.Map
	cleanup  *time.Ticker
}

func NewStore() *Store {
	s := &Store{
		cleanup: time.NewTicker(1 * time.Minute),
	}

	// Background cleanup of expired sessions
	go func() {
		for range s.cleanup.C {
			s.cleanupExpired()
		}
	}()

	return s
}

func (s *Store) Delete(id string) {
	s.sessions.Delete(id)
}
func (s *Store) cleanupExpired() {
	s.sessions.Range(func(key, value any) bool {
		session := value.(*RegistrationSession)
		if time.Now().After(session.ExpiresAt) {
			s.sessions.Delete(key)
		}
		return true
	})
}
func generateID() string {
	b := make([]byte, 32)
	rand.Read(b)
	return base64.RawURLEncoding.EncodeToString(b)
}