package com.tourguide.security;

import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.time.Duration;

@Service
public class TokenSessionService {
    private static final String KEY_PREFIX = "tourguide:auth:session:";
    private final StringRedisTemplate redisTemplate;

    public TokenSessionService(StringRedisTemplate redisTemplate) { this.redisTemplate = redisTemplate; }

    public void save(TokenPayload payload, long expirationSeconds) {
        redisTemplate.opsForValue().set(key(payload), String.valueOf(payload.getUserId()), Duration.ofSeconds(expirationSeconds));
    }

    public boolean isActive(TokenPayload payload) {
        String userId = redisTemplate.opsForValue().get(key(payload));
        return String.valueOf(payload.getUserId()).equals(userId);
    }

    public void remove(TokenPayload payload) { redisTemplate.delete(key(payload)); }

    private String key(TokenPayload payload) {
        return KEY_PREFIX + payload.getClientType().name() + ":" + payload.getTokenId();
    }
}