/// <reference types="node" />
/// <reference types="node" />
/**
 * Asset types supported by the manager
 */
export declare enum AssetType {
    LOTTIE = "lottie",
    IMAGE = "image",
    VIDEO = "video"
}
/**
 * Asset quality levels for prioritization
 */
export declare enum AssetQuality {
    MEDIUM = "720p",
    HIGH = "1080p"
}
/**
 * Download priorities
 */
export declare enum DownloadPriority {
    CRITICAL = 0,
    HIGH = 1,
    MEDIUM = 2,
    LOW = 3,
    BACKGROUND = 4
}
/**
 * Network connection types
 */
export declare enum NetworkType {
    WIFI = "wifi",
    CELLULAR = "cellular",
    ETHERNET = "ethernet",
    UNKNOWN = "unknown"
}
/**
 * Download strategies
 */
export declare enum DownloadStrategy {
    DEFAULT = "default",
    NETWORK_AWARE = "network-aware",
    DEVICE_AWARE = "device-aware",
    HYBRID = "hybrid",
    BANDWIDTH_OPTIMIZED = "bandwidth-optimized"
}
/**
 * Strategy configuration for hybrid/composite strategies
 */
export interface StrategyConfig {
    /** Primary strategy to use */
    primary: DownloadStrategy;
    /** Secondary strategy to combine with primary (for hybrid mode) */
    secondary?: DownloadStrategy;
    /** Strategy-specific configurations */
    networkAware?: {
        enableMeteredDownloads?: boolean;
        lowEndDeviceSizeThreshold?: number;
        maxConcurrentDownloads?: {
            low: number;
            medium: number;
            high: number;
        };
    };
    deviceAware?: {
        enableBatteryAwareness?: boolean;
        enableThermalManagement?: boolean;
        enableMemoryManagement?: boolean;
        batteryThreshold?: number;
        memoryThreshold?: number;
    };
    /** Weight for primary strategy when combining (0-1, default 0.7) */
    primaryWeight?: number;
}
/**
 * Individual asset definition
 */
export interface Asset {
    /** Unique identifier for the asset */
    id: string;
    /** Asset type (lottie, image, video) */
    type: AssetType;
    /** Asset quality level */
    quality: AssetQuality;
    /** Download priority */
    priority: DownloadPriority;
    /** ETag for cache validation */
    etag: string;
    /** Download URL */
    url: string;
    /** Sub-path where asset should be stored */
    key: string;
    /** File size in bytes */
    size: number;
    /** Is this asset required for game launch? */
    isDefault: boolean;
    /** Expected file hash for integrity validation */
    hash?: string;
    /** Additional metadata */
    metadata?: Record<string, any>;
}
/**
 * Asset bundle/zip definition
 */
export interface AssetBundle {
    /** Bundle identifier */
    id: string;
    /** Bundle version */
    version: string;
    /** Bundle ETag */
    etag: string;
    /** Download URL for the zip */
    url: string;
    /** List of assets contained in this bundle */
    assets: Asset[];
    /** Bundle size in bytes */
    size: number;
    /** Is this bundle critical for game launch? */
    isCritical: boolean;
    /** Bundle hash for integrity validation */
    hash?: string;
}
/**
 * Complete asset manifest
 */
export interface AssetManifest {
    /** Manifest version */
    version: string;
    /** List of asset bundles */
    bundles: AssetBundle[];
    /** Default assets required for game launch */
    defaultAssets: string[];
    /** Manifest metadata */
    metadata?: {
        totalSize: number;
        bundleCount: number;
        assetCount: number;
        [key: string]: any;
    };
}
/**
 * Network conditions
 */
export interface NetworkConditions {
    /** Connection type */
    type: NetworkType;
    /** Is connected to internet */
    isConnected: boolean;
    /** Connection speed in Mbps */
    speed?: number;
    /** Network ping in milliseconds */
    ping?: number;
    /** Is connection metered */
    isMetered?: boolean;
}
/**
 * Download progress information
 */
export interface DownloadProgress {
    /** Asset or bundle ID */
    id: string;
    /** Download type */
    type: 'asset' | 'bundle';
    /** Progress percentage (0-100) */
    progress: number;
    /** Downloaded bytes */
    downloadedBytes: number;
    /** Total bytes */
    totalBytes: number;
    /** Download speed in bytes/sec */
    speed: number;
    /** Estimated time remaining in seconds */
    eta?: number;
    /** Current status */
    status: DownloadStatus;
    /** Error message if failed */
    error?: string;
}
/**
 * Download status
 */
export declare enum DownloadStatus {
    PENDING = "pending",
    DOWNLOADING = "downloading",
    EXTRACTING = "extracting",
    COMPLETED = "completed",
    FAILED = "failed",
    CANCELLED = "cancelled",
    PAUSED = "paused"
}
/**
 * Asset manager configuration
 */
export interface AssetManagerConfig {
    /** Base path for asset storage */
    basePath: string;
    /** Download strategy configuration */
    strategy: DownloadStrategy | StrategyConfig;
    /** Maximum concurrent downloads (can be overridden by strategy) */
    maxConcurrentDownloads: number;
    /** Enable automatic network condition detection */
    enableNetworkDetection: boolean;
    /** Network ping timeout in milliseconds */
    pingTimeout: number;
    /** Ping target URLs for network latency measurement */
    pingTargets?: string[];
    /** Retry attempts for failed downloads */
    retryAttempts: number;
    /** Retry delay in milliseconds */
    retryDelay: number;
    /** Enable integrity validation */
    enableIntegrityCheck: boolean;
    /** Auto-cleanup old assets */
    enableAutoCleanup: boolean;
    /** App version for manifest fetching */
    appVersion?: string;
    /** Manifest URL for dynamic loading */
    manifestUrl?: string;
    /** App language for localized manifest */
    appLanguage?: string;
    /** Cache size limit in bytes */
    cacheLimit?: number;
    /** Custom headers for downloads */
    customHeaders?: Record<string, string>;
    /** Enable logging */
    enableLogging: boolean;
}
/**
 * Asset download queue item
 */
export interface QueueItem {
    /** Bundle to download */
    bundle: AssetBundle;
    /** Priority level */
    priority: DownloadPriority;
    /** Retry count */
    retryCount: number;
    /** Added to queue timestamp */
    queuedAt: number;
    /** Download started timestamp */
    startedAt?: number;
    /** Download completed timestamp */
    completedAt?: number;
}
/**
 * Memory statistics
 */
export interface MemoryStats {
    /** Total memory used by asset manager */
    totalMemory: number;
    /** Memory used by downloads */
    downloadMemory: number;
    /** Memory used by extracted assets */
    assetMemory: number;
    /** Memory used by cache */
    cacheMemory: number;
    /** Number of active downloads */
    activeDownloads: number;
    /** Queue size */
    queueSize: number;
}
/**
 * Asset validation result
 */
export interface ValidationResult {
    /** Is asset valid */
    isValid: boolean;
    /** Validation error message */
    error?: string;
    /** Asset size */
    size?: number;
    /** Asset hash */
    hash?: string;
}
/**
 * Storage information and statistics
 */
export interface StorageInfo {
    /** Total number of assets managed */
    totalAssets: number;
    /** Number of unique files stored (after deduplication) */
    uniqueFiles: number;
    /** Original total size if no deduplication was used */
    totalOriginalSize: number;
    /** Actual storage space used after deduplication */
    actualStorageUsed: number;
    /** Space saved through deduplication */
    spaceSaved: number;
    /** Deduplication ratio as percentage */
    deduplicationRatio: number;
}
/**
 * Event types for asset manager
 */
export declare enum AssetManagerEvent {
    DOWNLOAD_STARTED = "download_started",
    DOWNLOAD_PROGRESS = "download_progress",
    DOWNLOAD_COMPLETED = "download_completed",
    DOWNLOAD_FAILED = "download_failed",
    EXTRACTION_STARTED = "extraction_started",
    EXTRACTION_COMPLETED = "extraction_completed",
    EXTRACTION_FAILED = "extraction_failed",
    GAME_READY = "game_ready",
    MANIFEST_LOADED = "manifest_loaded",
    MANIFEST_FAILED = "manifest_failed",
    NETWORK_CHANGED = "network_changed",
    STORAGE_WARNING = "storage_warning",
    CLEANUP_COMPLETED = "cleanup_completed"
}
/**
 * Event listener callback type
 */
export type EventCallback<T = any> = (data: T) => void;
/**
 * Download strategy interface
 */
export interface IDownloadStrategy {
    /** Strategy name */
    name: string;
    /** Determine optimal asset quality based on network conditions */
    getOptimalQuality(conditions: NetworkConditions): AssetQuality;
    /** Sort bundles by download priority */
    prioritizeBundles(bundles: AssetBundle[], conditions: NetworkConditions): AssetBundle[];
    /** Determine if download should proceed based on conditions */
    shouldDownload(bundle: AssetBundle, conditions: NetworkConditions): boolean;
    /** Get maximum concurrent downloads for current conditions */
    getMaxConcurrentDownloads(conditions: NetworkConditions): number;
}
/**
 * Network monitor interface
 */
export interface INetworkMonitor {
    /** Get current network conditions */
    getCurrentConditions(): Promise<NetworkConditions>;
    /** Start monitoring network changes */
    startMonitoring(callback: (conditions: NetworkConditions) => void): void;
    /** Stop monitoring */
    stopMonitoring(): void;
    /** Measure network ping */
    measurePing(): Promise<number>;
    /** Cleanup resources */
    destroy?(): void;
}
/**
 * Storage manager interface
 */
export interface IStorageManager {
    /** Get storage information */
    getStorageInfo(): Promise<StorageInfo>;
    /** Check if asset exists locally */
    assetExists(assetPath: string, etag?: string): Promise<boolean>;
    /** Save asset to storage */
    saveAsset(data: Buffer, path: string): Promise<void>;
    /** Delete asset from storage */
    deleteAsset(path: string): Promise<void>;
    /** Cleanup old/unused assets */
    cleanup(options?: {
        maxAge?: number;
        maxSize?: number;
    }): Promise<number>;
    /** Validate asset integrity */
    validateAsset(path: string, expectedHash?: string): Promise<ValidationResult>;
    /** Cleanup resources */
    destroy?(): void;
}