package com.xly.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;

/**
 * 业务审计：写操作 / SQL 的不可变留痕（谁、何时、什么动作、目标、结果）。
 * 记账失败绝不阻断主流程（审计是旁路）。
 */
@Service
public class AuditService {

    private static final Logger log = LoggerFactory.getLogger(AuditService.class);

    private final JdbcTemplate jdbc;

    public AuditService(JdbcTemplate jdbc) {
        this.jdbc = jdbc;
    }

    public void log(String userId, String conversationId, String action,
                    String target, String detail, boolean ok, String resultMsg) {
        try {
            jdbc.update(
                    "INSERT INTO ai_audit_log(tTime,sUserId,sConversationId,sAction,sTarget,sDetail,sResult,sResultMsg) " +
                            "VALUES(NOW(),?,?,?,?,?,?,?)",
                    userId, conversationId, action, trunc(target, 200), trunc(detail, 60000),
                    ok ? "ok" : "fail", trunc(resultMsg, 500));
        } catch (Exception e) {
            log.warn("audit write failed (action={}): {}", action, e.getMessage());
        }
    }

    private static String trunc(String s, int max) {
        if (s == null) {
            return null;
        }
        return s.length() > max ? s.substring(0, max) : s;
    }
}