#ifndef AUTH_H
#define AUTH_H

#include <Arduino.h>
#include <map>

struct Session {
    String username;
    unsigned long lastActivity;
    unsigned long timeout; // en millisecondes
};

class AuthManager {
private:
    String username;
    String passwordHash;
    std::map<String, Session> sessions;
    unsigned long sessionTimeout; // en minutes

public:
    AuthManager();
    void setCredentials(const String& user, const String& passHash);
    void setSessionTimeout(unsigned long timeout);
    
    bool authenticate(const String& user, const String& password);
    String createSession(const String& user);
    bool validateSession(const String& sessionId);
    void updateSessionActivity(const String& sessionId);
    void removeSession(const String& sessionId);
    void cleanExpiredSessions();
    
    String getUsername() { return username; }
};

extern AuthManager authManager;

#endif