import { Asset, AssetManagerConfig, AssetManifest, DownloadProgress, EventCallback, NetworkConditions, StorageInfo } from '../types/index';
/**
 * Main Toast Asset Manager class for intelligent asset downloading and management
 */
export declare class ToastAssetManager {
    private config;
    private manifest?;
    private networkMonitor;
    private storageManager;
    private downloadManager;
    private strategy;
    private downloadQueue;
    private processing;
    private destroyed;
    private currentNetworkConditions?;
    private progressCallback?;
    private gameReadyCallback?;
    private networkChangeCallback?;
    constructor(config: Partial<AssetManagerConfig>);
    /**
     * Start the complete asset management process - initialize, load manifest, and begin downloads
     */
    start(manifest?: AssetManifest): Promise<void>;
    /**
     * Initialize the asset manager
     */
    private initialize;
    /**
     * Load asset manifest - either from parameter or from configured URL
     */
    private loadManifest;
    /**
     * Fetch manifest from the configured URL with app version and language parameters
     */
    private fetchManifestFromUrl;
    /**
     * Start downloading assets based on current strategy
     */
    private startDownloads;
    /**
     * Check if game is ready to play (all default assets downloaded)
     */
    isGameReadyToPlay(): Promise<boolean>;
    /**
     * Get path to a specific asset
     */
    getAssetPath(asset: Asset): string;
    /**
     * Get asset by ID
     */
    getAsset(assetId: string): Asset | undefined;
    /**
     * Get storage information
     */
    getStorageInfo(): Promise<StorageInfo>;
    /**
     * Get hash-based deduplication statistics
     */
    getDeduplicationStats(): Promise<{
        totalAssets: number;
        uniqueFiles: number;
        savedSpace: number;
        dedupRatio: number;
        savedSpaceMB: number;
    }>;
    /**
     * Get the actual file path for an asset by ID (resolves hash-based references)
     */
    getAssetPathById(assetId: string): Promise<string | null>;
    /**
     * Cleanup old assets
     */
    cleanup(): Promise<number>;
    /**
     * Set progress callback for download updates
     */
    onProgress(callback: EventCallback<DownloadProgress>): void;
    /**
     * Set game ready callback
     */
    onGameReady(callback: EventCallback<boolean>): void;
    /**
     * Set network change callback
     */
    onNetworkChange(callback: EventCallback<NetworkConditions>): void;
    /**
     * Destroy the asset manager and cleanup resources
     */
    destroy(): Promise<void>;
    /**
     * Manually flush all pending storage operations to disk
     * Useful before critical operations or app shutdown
     */
    flushStorage(): Promise<void>;
    /**
     * Get storage batching statistics
     * Useful for monitoring and debugging performance
     */
    getStorageBatchingStats(): {
        pendingAssetUpdates: number;
        pendingHashUpdates: number;
        hasPendingTimer: boolean;
    };
    /**
     * Queue a bundle for download
     */
    private queueDownload;
    /**
     * Process download queue with concurrency control
     */
    private processDownloadQueue;
    /**
     * Start downloading a bundle
     */
    private startBundleDownload;
    /**
     * Get bundle priority
     */
    private getBundlePriority;
    /**
     * Find asset by ID across all bundles
     */
    private findAssetById;
    /**
     * Handle network condition changes
     */
    private handleNetworkChange;
    /**
     * Start automatic cleanup
     */
    private startAutoCleanup;
    /**
     * Log message if logging is enabled
     */
    private log;
}