import type { MeetMediaAttachment } from "./types.js";
export declare function setMediaDebugLogger(log: (msg: string) => void, error: (msg: string) => void): void;
/**
 * 获取文件下载 URL
 */
export declare function getFileAccessUrl(params: {
    accountId: string;
    sessionInfo: {
        firstId: number;
        secondId: number;
        sessionType: number;
        companyId?: number;
    };
    seqId: number;
    fileId: string | number;
    ossProcess?: string;
}): Promise<string | null>;
/**
 * 媒体信息（下载并保存后的结果）
 */
export type ResolvedMedia = {
    path: string;
    contentType?: string;
    placeholder: string;
    url?: string;
};
/**
 * 下载媒体文件到本地 media store
 * 与 Discord 保持一致的处理流程
 */
export declare function downloadAndSaveMedia(params: {
    accountId: string;
    attachment: MeetMediaAttachment;
    sessionInfo: {
        firstId: number;
        secondId: number;
        sessionType: number;
        companyId?: number;
    };
    seqId: number;
    maxBytes?: number;
}): Promise<ResolvedMedia | null>;
/**
 * 批量处理媒体附件
 */
export declare function resolveMediaAttachments(params: {
    accountId: string;
    attachments: MeetMediaAttachment[];
    sessionInfo: {
        firstId: number;
        secondId: number;
        sessionType: number;
        companyId?: number;
    };
    seqId: number;
    maxBytes?: number;
}): Promise<ResolvedMedia[]>;