import { Http } from "../../utils/http";
/**
 * 视频号分片上传配置
 */
interface UploadConfig {
    chunkSize?: number;
    concurrentLimit?: number;
    singleFileSize?: number;
    http?: Http;
    timeout?: number;
    retries?: number;
    retryDelay?: number;
}
/**
 * 上传进度回调
 */
type ProgressCallback = (progress: {
    uploadedChunks: number;
    totalChunks: number;
    percent: number;
    speed?: number;
}) => void;
/**
 * 视频号分片上传器
 * 参考前端代码逻辑实现
 */
export declare class VideoChannelUploader {
    private chunkSize;
    private concurrentLimit;
    private singleFileSize;
    private http;
    private reqOptions;
    private uploadTaskId;
    private partInfo;
    private md5;
    private chunkCount;
    private uploadedChunks;
    private startTime;
    private uploadSpeed;
    private speedRecords;
    private speedInterval?;
    constructor(config?: UploadConfig);
    /**
     * 计算 Buffer MD5（前 5MB）
     */
    private calculateMd5;
    /**
     * 计算分片 MD5（完整分片）
     */
    private calculateChunkMd5;
    /**
     * 生成 UUID
     */
    private generateUUID;
    /**
     * 获取图片尺寸
     */
    private getImageSize;
    /**
     * 读取文件为 Buffer
     */
    private readFile;
    /**
     * 获取上传认证参数（UploadID）
     */
    private getUploadId; /**
     * 上传单个分片
     */
    private uploadChunk; /**
     * 确认分片上传（用于断点续传检查）
     */
    private confirmChunks;
    /**
     * 完成上传
     */
    private completeUpload;
    /**
     * 并发控制执行器
     */
    private asyncPool;
    /**
     * 开始上传（核心方法）
     */
    upload(imagePath: string, uin: number, authKey: string, options?: {
        onProgress?: ProgressCallback;
        transFlag?: string;
    }): Promise<{
        downloadUrl: string;
        width: number;
        height: number;
        fileSize: number;
        md5: string;
    }>;
    /**
     * 更新进度
     */
    private updateProgress;
    /**
     * 启动速度监控
     */
    private startSpeedWatch;
    /**
     * 停止速度监控
     */
    private stopSpeedWatch;
}
export {};