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* Constants for the asset caching module\n * This file contains all constant values used throughout the asset cache system\n */\n\n// ============================================================================\n// CACHE CONFIGURATION CONSTANTS\n// ============================================================================\n\n/**\n * Default cache name for the Cache Storage API\n */\nexport const DEFAULT_CACHE_NAME = \"asset-cache-v1\";\n\n/**\n * Default time to live for cached assets (in seconds)\n * 7 days\n */\nexport const DEFAULT_CACHE_TTL = 7 * 24 * 60 * 60;\n\n/**\n * Maximum size for cacheable assets (in bytes)\n * 50MB\n */\nexport const MAX_CACHEABLE_SIZE = 50 * 1024 * 1024;\n\n/**\n * Path to the cache manifest file\n */\nexport const CACHE_MANIFEST_PATH = \"/manifest.json\";\n\n// ============================================================================\n// SERVICE WORKER CONSTANTS\n// ============================================================================\n\n/**\n * Default service worker scope\n */\nexport const DEFAULT_SW_SCOPE = \"/\";\n\n// ============================================================================\n// CACHE STRATEGY MAPPINGS\n// ============================================================================\n\n/**\n * Asset types that should use a cache-first strategy\n * These are typically static assets that don't change frequently\n */\nexport const CACHE_FIRST_TYPES = [\n \"image/jpeg\",\n \"image/png\",\n \"image/webp\",\n \"image/gif\",\n \"image/svg+xml\",\n \"font/woff\",\n \"font/woff2\",\n \"font/ttf\",\n \"font/otf\",\n];\n\n/**\n * Asset types that should use a network-first strategy\n * These are typically large media files that benefit from fresh content\n */\nexport const NETWORK_FIRST_TYPES = [\n \"video/mp4\",\n \"video/webm\",\n \"audio/mpeg\",\n \"audio/ogg\",\n];\n\n/**\n * Asset types that should use a stale-while-revalidate strategy\n * These are assets that can be served stale while being updated in background\n */\nexport const STALE_WHILE_REVALIDATE_TYPES = [\n \"application/javascript\",\n \"text/css\",\n \"application/json\",\n];\n\n// ============================================================================\n// FILE TYPE MAPPINGS\n// ============================================================================\n\n/**\n * File extensions to MIME type mapping\n * Used to determine the correct content type for cached assets\n */\nexport const FILE_EXTENSION_TO_ASSET_TYPE: Record = {\n // Images\n jpg: \"image/jpeg\",\n jpeg: \"image/jpeg\",\n png: \"image/png\",\n gif: \"image/gif\",\n webp: \"image/webp\",\n svg: \"image/svg+xml\",\n ico: \"image/x-icon\",\n avif: \"image/avif\",\n bmp: \"image/bmp\",\n\n // Fonts\n woff: \"font/woff\",\n woff2: \"font/woff2\",\n ttf: \"font/ttf\",\n otf: \"font/otf\",\n eot: \"application/vnd.ms-fontobject\",\n\n // Videos\n mp4: \"video/mp4\",\n webm: \"video/webm\",\n ogg: \"video/ogg\",\n avi: \"video/x-msvideo\",\n mov: \"video/quicktime\",\n\n // Audio\n mp3: \"audio/mpeg\",\n wav: \"audio/wav\",\n oga: \"audio/ogg\",\n flac: \"audio/flac\",\n aac: \"audio/aac\",\n\n // Scripts and Styles\n js: \"application/javascript\",\n mjs: \"application/javascript\",\n css: \"text/css\",\n json: \"application/json\",\n\n // Documents\n pdf: \"application/pdf\",\n txt: \"text/plain\",\n html: \"text/html\",\n xml: \"application/xml\",\n};\n","/**\n * Asset Cache Default Configuration\n * This file contains default configuration values for the simplified asset cache system\n */\n\nimport {\n DEFAULT_CACHE_NAME,\n DEFAULT_CACHE_TTL,\n MAX_CACHEABLE_SIZE,\n} from \"./constants\";\nimport type { AssetCacheConfig } from \"./types\";\n\n// ============================================================================\n// DEFAULT CONFIGURATION VALUES\n// ============================================================================\n\n/**\n * Get default asset cache configuration\n * This provides sensible defaults for all implemented configuration options\n */\nexport function getDefaultAssetCacheConfig(): Required {\n return {\n enabled: true,\n version: \"1.0.0\",\n debug: false,\n storageName: DEFAULT_CACHE_NAME,\n maxSize: MAX_CACHEABLE_SIZE, // 50 MB\n maxAge: DEFAULT_CACHE_TTL, // 7 days\n serviceWorkerEnabled: true,\n serviceWorkerPath: \"/sw.js\",\n manifestPath: \"/manifest.json\",\n };\n}\n","/**\n * Asset Cache Type Definitions\n * Centralized type definitions for the entire asset cache system\n */\n\n// ============================================================================\n// CORE ASSET TYPES\n// ============================================================================\n\n/**\n * Asset types that can be cached\n */\nexport enum AssetType {\n IMAGE = \"image\",\n VIDEO = \"video\",\n FONT = \"font\",\n AUDIO = \"audio\",\n OTHER = \"other\",\n}\n\n// ============================================================================\n// CACHE OPERATION TYPES\n// ============================================================================\n\n/**\n * Options for asset cache operations\n */\nexport interface CacheOptions {\n ttl?: number; // Time to live in seconds\n revalidate?: boolean; // Whether to revalidate on access\n tags?: string[]; // Cache tags for invalidation\n priority?: \"high\" | \"medium\" | \"low\"; // Priority for preloading\n}\n\n/**\n * Cache entry with metadata\n */\nexport interface CacheEntry {\n data: T;\n timestamp: number;\n expires?: number;\n type: AssetType;\n tags?: string[];\n version?: string;\n}\n\n/**\n * Result of a cache operation\n */\nexport interface CacheResult {\n success: boolean;\n data?: T;\n fromCache: boolean;\n error?: Error;\n}\n\n/**\n * Asset metadata for cache manifest\n */\nexport interface AssetMetadata {\n url: string;\n type: AssetType;\n version: string;\n lastModified: string;\n size?: number;\n tags?: string[];\n}\n\n/**\n * Cache manifest structure\n */\nexport interface CacheManifest {\n version: string;\n generatedAt: string;\n assets: Record;\n}\n\n// ============================================================================\n// SERVICE WORKER TYPES\n// ============================================================================\n\n/**\n * Service worker message types\n */\nexport enum ServiceWorkerMessageType {\n CACHE_ASSET = \"CACHE_ASSET\",\n INVALIDATE_ASSET = \"INVALIDATE_ASSET\",\n INVALIDATE_TAG = \"INVALIDATE_TAG\",\n CLEAR_CACHE = \"CLEAR_CACHE\",\n UPDATE_MANIFEST = \"UPDATE_MANIFEST\",\n CHECK_ASSET = \"CHECK_ASSET\",\n}\n\n// Service Worker Global Scope Types (simplified to avoid DOM conflicts)\nexport interface ExtendableEvent extends Event {\n waitUntil(promise: Promise): void;\n}\n\nexport interface FetchEvent extends ExtendableEvent {\n request: Request;\n respondWith(response: Promise | Response): void;\n}\n\nexport interface ExtendableMessageEvent extends ExtendableEvent {\n data: any;\n source: Client | MessagePort | ServiceWorker | null;\n}\n\nexport interface ServiceWorkerGlobalScope {\n caches: CacheStorage;\n clients: Clients;\n registration: ServiceWorkerRegistration;\n location: Location;\n addEventListener(\n type: \"install\",\n listener: (event: ExtendableEvent) => void\n ): void;\n addEventListener(\n type: \"activate\",\n listener: (event: ExtendableEvent) => void\n ): void;\n addEventListener(type: \"fetch\", listener: (event: FetchEvent) => void): void;\n addEventListener(\n type: \"message\",\n listener: (event: ExtendableMessageEvent) => void\n ): void;\n skipWaiting(): Promise;\n}\n\nexport interface Client {\n id: string;\n type: \"window\" | \"worker\" | \"sharedworker\";\n url: string;\n postMessage(message: any, transfer?: Transferable[]): void;\n}\n\nexport interface Clients {\n get(id: string): Promise;\n matchAll(options?: ClientQueryOptions): Promise;\n openWindow(url: string): Promise;\n claim(): Promise;\n}\n\nexport interface ClientQueryOptions {\n includeUncontrolled?: boolean;\n type?: \"window\" | \"worker\" | \"sharedworker\" | \"all\";\n}\n\nexport interface WindowClient extends Client {\n focused: boolean;\n visibilityState: \"hidden\" | \"visible\" | \"prerender\" | \"unloaded\";\n focus(): Promise;\n navigate(url: string): Promise;\n}\n\n// ============================================================================\n// CONFIGURATION TYPES\n// ============================================================================\n\n/**\n * Asset Cache Configuration Interface\n * Simplified configuration interface containing only implemented features\n */\nexport interface AssetCacheConfig {\n /** Enable or disable the asset cache system */\n enabled?: boolean;\n /** Cache version for invalidation */\n version?: string;\n /** Enable debug logging */\n debug?: boolean;\n /**\n * Name of the cache storage (used with browser Cache API)\n * Should be a unique identifier for your application's cache\n * Examples: \"my-app-cache-v1\", \"storefront-assets\", \"asset-cache-prod\"\n */\n storageName?: string;\n /** Maximum cache size in MB */\n maxSize?: number;\n /** Maximum age for cached assets in seconds */\n maxAge?: number;\n /** Enable service worker for caching */\n serviceWorkerEnabled?: boolean;\n /** Service worker file path */\n serviceWorkerPath?: string;\n /** Cache manifest file path */\n manifestPath?: string;\n}\n\n/**\n * Asset loader configuration\n */\nexport interface AssetLoaderConfig {\n cacheName?: string;\n defaultTTL?: number;\n maxSize?: number; // Maximum size in bytes for cacheable assets\n enableServiceWorker?: boolean;\n manifestPath?: string;\n debug?: boolean;\n}\n","/**\n * Asset Cache Configuration\n * This file contains configuration utility functions\n */\n\nimport type { AssetCacheConfig } from \"./types\";\n\n// ============================================================================\n// CONFIGURATION UTILITY FUNCTIONS\n// ============================================================================\n\n/**\n * Merge user configuration with defaults\n * Simple merge of user-provided configuration with default values\n */\nexport function mergeAssetCacheConfig(\n userConfig: AssetCacheConfig = {}\n): Required {\n // Validate user configuration first\n validateAssetCacheConfig(userConfig);\n\n // Import defaults here to avoid circular dependency\n const { getDefaultAssetCacheConfig } = require(\"./defaults\");\n const defaults = getDefaultAssetCacheConfig();\n\n return {\n ...defaults,\n ...userConfig,\n };\n}\n\n/**\n * Validate asset cache configuration\n * Validates user-provided configuration and throws errors for invalid values\n */\nexport function validateAssetCacheConfig(config: AssetCacheConfig): void {\n // Validate numeric values\n if (config.maxSize !== undefined && config.maxSize <= 0) {\n throw new Error(\"maxSize must be greater than 0\");\n }\n\n if (config.maxAge !== undefined && config.maxAge <= 0) {\n throw new Error(\"maxAge must be greater than 0\");\n }\n}\n","/**\n * Asset Cache Configuration Module\n * Centralized exports for all configuration-related functionality\n */\n\n// ============================================================================\n// TYPE DEFINITIONS\n// ============================================================================\n\nexport * from \"./types\";\n\n// ============================================================================\n// CONFIGURATION INTERFACES AND FUNCTIONS\n// ============================================================================\n\nexport * from \"./config\";\n\n// ============================================================================\n// DEFAULT CONFIGURATIONS AND PRESETS\n// ============================================================================\n\nexport * from \"./defaults\";\n\n// ============================================================================\n// CONSTANTS AND MAPPINGS\n// ============================================================================\n\nexport * from \"./constants\";\n\n// ============================================================================\n// EXPLICIT TYPE EXPORTS (for better IDE support)\n// ============================================================================\n\nexport type {\n AssetCacheConfig,\n // Core types\n AssetType,\n\n // Cache operation types\n CacheOptions,\n CacheEntry,\n CacheResult,\n AssetMetadata,\n CacheManifest,\n\n // Service worker types\n ServiceWorkerMessageType,\n\n // Asset loader configuration\n AssetLoaderConfig,\n} from \"./types\";\n\n// ============================================================================\n// UTILITY FUNCTIONS\n// ============================================================================\n\nexport { mergeAssetCacheConfig, validateAssetCacheConfig } from \"./config\";\n\nexport { getDefaultAssetCacheConfig } from \"./defaults\";\n"]}