package memory

import "sync"

type Memory struct {
	passwords map[string]struct{}
	mu        sync.RWMutex
}

func New() *Memory {
	mem := Memory{
		passwords: make(map[string]struct{}, 16),
		mu:        sync.RWMutex{},
	}
	return &mem
}

func (m *Memory) SavePassword(password string) error {
	m.mu.Lock()
	defer m.mu.Unlock()

	m.passwords[password] = struct{}{}

	return nil
}

func (m *Memory) PasswordExists(password string) (bool, error) {
	m.mu.RLock()
	defer m.mu.RUnlock()

	if _, ok := m.passwords[password]; ok {
		return true, nil
	}
	return false, nil
}