import { Context, h, Logger, Session } from "koishi";
import { StickerConfig } from "./index";
interface StickerRecord {
    id: string;
    category: string;
    filePath: string;
    source: {
        platform: string;
        channelId: string;
        userId: string;
        messageId: string;
    };
    createdAt: Date;
}
declare const TableName = "yesimbot.stickers";
declare module "koishi" {
    interface Tables {
        [TableName]: StickerRecord;
    }
}
export declare class StickerService {
    private ctx;
    private config;
    logger: Logger;
    private static tablesRegistered;
    isReady: boolean;
    constructor(ctx: Context, config: StickerConfig);
    private start;
    whenReady(): Promise<void>;
    private registerPromptSnippet;
    private initStorage;
    private registerModels;
    /**
     * 偷取表情包
     * @param image_id string
     * @param session
     * @returns
     */
    stealSticker(image_id: string, session: Session): Promise<StickerRecord>;
    private classifySticker;
    /**
     * 从外部文件夹导入表情包
     * @param sourceDir 源文件夹路径
     * @param session 会话对象（用于日志记录）
     * @returns 导入结果统计信息
     */
    importFromDirectory(sourceDir: string, session: Session): Promise<ImportStats>;
    /** 获取有效的子目录列表 */
    private getValidSubdirectories;
    /** 获取目录下的所有图片文件 */
    private getImageFiles;
    /** 校验文件类型 */
    private isValidImageType;
    /** 计算文件哈希值 */
    private calculateFileHash;
    private saveImageToLocal;
    /**
     * 规范化 emojihub-bili URL
     * 处理特定格式的部分 URL
     */
    private normalizeEmojiHubUrl;
    /** 检查目录是否存在 */
    private dirExists;
    getCategories(): Promise<string[]>;
    getRandomSticker(category: string): Promise<h>;
    getStickersByCategory(category: string): Promise<StickerRecord[]>;
    importEmojiHubTxt(filePath: string, category: string, session: Session): Promise<ImportStats>;
    /**
     * 根据Content-Type获取文件扩展名
     */
    private getExtensionFromContentType;
    /**
     * 自定义 fetch 方法，带超时控制
     */
    private fetchWithTimeout;
    /**
     * 清理临时目录
     */
    private cleanupTempDir;
    /**
     * 增强版 importSingleSticker 方法
     */
    private importSingleSticker;
    /**
     * 增强版文件类型验证
     */
    private isValidImageFile;
    renameCategory(oldName: string, newName: string): Promise<number>;
    deleteCategory(category: string): Promise<number>;
    /**
     * 合并两个分类
     */
    mergeCategories(sourceCategory: string, targetCategory: string): Promise<number>;
    /**
     * 移动表情包到新分类
     */
    moveSticker(stickerId: string, newCategory: string): Promise<number>;
    /**
     * 获取分类中的表情包数量
     */
    getStickerCount(category: string): Promise<number>;
    /**
     * 获取指定表情包
     */
    getSticker(stickerId: string): Promise<StickerRecord | null>;
    /**
     * 清理未使用的表情包
     */
    cleanupUnreferenced(): Promise<number>;
}
interface ImportStats {
    total: number;
    success: number;
    failed: number;
    skipped: number;
    failedFiles?: string[];
    failedUrls?: {
        url: string;
        error: string;
    }[];
}
export {};