/**
 * Safety Engine — 四层风控引擎
 *
 * 1. 内容安全审核（敏感词 + AI 审核）
 * 2. 频率限制（滑动窗口限速）
 * 3. 平台合规校验
 * 4. 反封策略（随机延迟 + 活跃时段 + 冷却机制）
 */
import type { SafetyEngineConfig, SafetyCheckResult, ViolationType, SafetyLevel, RateLimit, RateLimitResult, PlatformRule, PlatformCheckResult } from "./types.js";
export declare class SafetyEngine {
    private config;
    private sensitiveWords;
    private whitelistWords;
    private platformRules;
    private rateLimits;
    private antiBlock;
    /** 频率计数器: key → { timestamps } */
    private rateCounters;
    /** 每日发布计数 */
    private dailyPublishCount;
    private lastResetDate;
    /** 连续失败计数器 */
    private consecutiveFailures;
    constructor(config?: Partial<SafetyEngineConfig>);
    /**
     * 全面内容安全检查
     * 包括敏感词、违规内容、个人信息等
     */
    checkContent(content: string, title?: string): SafetyCheckResult;
    /**
     * 过滤/替换内容中的违规部分
     * 返回清理后的内容
     */
    sanitizeContent(content: string): {
        cleaned: string;
        replacements: number;
    };
    /**
     * 检查频率是否允许
     */
    checkRateLimit(platform: string, action: RateLimit["action"]): RateLimitResult;
    /** 记录一次操作（用于频率计数） */
    recordAction(platform: string, action: RateLimit["action"]): void;
    /**
     * 校验内容是否符合平台规则
     */
    checkPlatformRules(platform: string, data: {
        title?: string;
        content?: string;
        tags?: string[];
        images?: string[];
    }): PlatformCheckResult;
    /** 获取平台规则 */
    getPlatformRule(platform: string): PlatformRule | undefined;
    /** 列出所有平台规则 */
    listPlatformRules(): PlatformRule[];
    /**
     * 获取发布前需要等待的随机延迟（毫秒）
     */
    getRandomDelay(): number;
    /**
     * 检查当前时间是否在活跃时段
     */
    isActiveHour(): boolean;
    /**
     * 检查是否超过每日发布上限
     */
    checkDailyLimit(): {
        allowed: boolean;
        remaining: number;
    };
    /**
     * 记录失败并检查是否需要冷却
     */
    recordFailure(platform: string): {
        needsCooldown: boolean;
        cooldownMs: number;
    };
    /** 重置失败计数 */
    resetFailure(platform: string): void;
    /**
     * 综合预发布检查
     * 集成所有安全层，返回最终决策
     */
    prePublishCheck(platform: string, data: {
        title?: string;
        content?: string;
        tags?: string[];
        images?: string[];
    }): Promise<{
        allowed: boolean;
        reasons: string[];
        delayMs: number;
        contentCheck: SafetyCheckResult;
        platformCheck: PlatformCheckResult;
        rateCheck: RateLimitResult;
        dailyCheck: {
            allowed: boolean;
            remaining: number;
        };
    }>;
    /** 获取风控状态摘要 */
    getStatus(): {
        level: SafetyLevel;
        sensitiveWordCount: number;
        platformRuleCount: number;
        rateLimitCount: number;
        dailyPublishCount: number;
        dailyPublishLimit: number;
        activeHours: [number, number];
    };
    /** 添加自定义敏感词 */
    addSensitiveWord(word: string, type?: ViolationType): void;
    /** 添加白名单词 */
    addWhitelistWord(word: string): void;
    private getSeverity;
    private getTypeName;
    private calculateRiskScore;
    private determineAction;
    private generateSuggestions;
    private escapeRegex;
}
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