/**
 * Output directory manager for Meshy generation tasks.
 *
 * Organizes all downloaded files under {cwd}/meshy_output/ with:
 *   - Per-project folders: {YYYYMMDD_HHmmss}_{prompt_slug}_{task_id_prefix}/
 *   - Auto-downloaded thumbnails
 *   - Per-project metadata.json tracking task chains
 *   - Global history.json index
 */
export interface TaskRecord {
    task_id: string;
    task_type: string;
    stage: string;
    prompt?: string;
    status: string;
    files: string[];
    created_at: string;
}
/**
 * Infer a human-readable stage name from task type and API response type field.
 */
export declare function inferStage(taskType: string, apiType?: string): string;
/**
 * Resolve (or create) the project directory for a task.
 *
 * For chained tasks (refine → preview, rig → source), pass parentTaskId
 * to place the output in the same project folder as the parent.
 */
export declare function resolveProjectDir(taskId: string, taskType: string, prompt?: string, parentTaskId?: string, createdAt?: string | number): string;
/**
 * Generate the file path for a model download within a project directory.
 * Returns: /path/to/project/stage.ext (e.g., preview.glb, refined.glb)
 */
export declare function getFilePath(projectDir: string, stage: string, format: string): string;
/**
 * Generate texture file path within a project directory.
 * Returns: /path/to/project/stage_texType.ext (e.g., refined_base_color.png)
 */
export declare function getTextureFilePath(projectDir: string, stage: string, textureType: string, url: string): string;
/**
 * Record a completed task into the project's metadata.json.
 */
export declare function recordTask(projectDir: string, record: TaskRecord): void;
/**
 * Download and save thumbnail to the project directory.
 * Silently skips on failure.
 */
export declare function saveThumbnail(projectDir: string, thumbnailUrl: string): Promise<string | null>;
/**
 * Get the output root path (for display purposes).
 */
export declare function getOutputRootPath(): string;