@clduab11/gemini-flow/src/services/google-services/infrastructure/multimedia-storage.ts

Revolutionary AI agent swarm coordination platform with Google Services integration, multimedia processing, and production-ready monitoring. Features 8 Google AI services, quantum computing capabilities, and enterprise-grade security.

/**
 * Multimedia Storage Manager Infrastructure
 *
 * Advanced multimedia storage system with multi-cloud support,
 * intelligent caching, and content optimization.
 */

import { EventEmitter } from "events";
import { Logger } from "../../../utils/logger.js";
import {
  MultimediaStorageConfig,
  ServiceResponse,
  ServiceError,
  PerformanceMetrics,
} from "../interfaces.js";

export interface StorageProvider {
  name: string;
  type: "local" | "cloud" | "hybrid";
  endpoint: string;
  credentials: ProviderCredentials;
  features: ProviderFeatures;
  limits: ProviderLimits;
}

export interface ProviderCredentials {
  accessKey?: string;
  secretKey?: string;
  token?: string;
  region?: string;
  project?: string;
}

export interface ProviderFeatures {
  encryption: boolean;
  versioning: boolean;
  lifecycle: boolean;
  caching: boolean;
  streaming: boolean;
  transcoding: boolean;
}

export interface ProviderLimits {
  maxFileSize: number; // bytes
  maxBandwidth: number; // bytes/sec
  maxRequests: number; // per hour
  storageQuota: number; // bytes
}

export interface MultimediaFile {
  id: string;
  name: string;
  type: "image" | "video" | "audio" | "document" | "other";
  format: string;
  size: number;
  checksum: string;
  metadata: FileMetadata;
  storage: StorageLocation[];
  status: "uploading" | "stored" | "processing" | "error";
}

export interface FileMetadata {
  created: Date;
  modified: Date;
  accessed: Date;
  contentType: string;
  encoding?: string;
  duration?: number; // for media files
  dimensions?: Dimensions;
  quality?: QualityInfo;
  tags: string[];
  description?: string;
}

export interface Dimensions {
  width: number;
  height: number;
  depth?: number;
}

export interface QualityInfo {
  bitrate?: number;
  sampleRate?: number;
  colorDepth?: number;
  compression?: string;
}

export interface StorageLocation {
  provider: string;
  bucket: string;
  key: string;
  region: string;
  url: string;
  replicated: boolean;
}

export interface UploadRequest {
  file: File | Buffer | ReadableStream;
  name: string;
  type: string;
  metadata?: Partial<FileMetadata>;
  options?: UploadOptions;
}

export interface UploadOptions {
  providers?: string[];
  encryption?: boolean;
  compression?: boolean;
  transcoding?: TranscodingOptions;
  caching?: CachingOptions;
  validation?: ValidationOptions;
}

export interface TranscodingOptions {
  enabled: boolean;
  formats: TranscodingFormat[];
  quality: TranscodingQuality[];
  optimization: TranscodingOptimization;
}

export interface TranscodingFormat {
  format: string;
  container: string;
  codec: string;
  preset: string;
}

export interface TranscodingQuality {
  name: string;
  bitrate: number;
  resolution?: Dimensions;
  framerate?: number;
}

export interface TranscodingOptimization {
  adaptive: boolean;
  multipass: boolean;
  hardware: boolean;
  efficiency: "speed" | "quality" | "size";
}

export interface CachingOptions {
  enabled: boolean;
  ttl: number;
  regions: string[];
  strategy: "push" | "pull" | "hybrid";
}

export interface ValidationOptions {
  checksum: boolean;
  virus: boolean;
  content: boolean;
  metadata: boolean;
}

export interface DownloadRequest {
  fileId: string;
  format?: string;
  quality?: string;
  region?: string;
  options?: DownloadOptions;
}

export interface DownloadOptions {
  range?: ByteRange;
  streaming?: boolean;
  cache?: boolean;
  transformation?: TransformationOptions;
}

export interface ByteRange {
  start: number;
  end: number;
}

export interface TransformationOptions {
  resize?: ResizeOptions;
  crop?: CropOptions;
  rotate?: number;
  filter?: FilterOptions;
}

export interface ResizeOptions {
  width: number;
  height: number;
  mode: "fit" | "fill" | "stretch" | "crop";
  quality: number;
}

export interface CropOptions {
  x: number;
  y: number;
  width: number;
  height: number;
}

export interface FilterOptions {
  brightness?: number;
  contrast?: number;
  saturation?: number;
  blur?: number;
  sharpen?: number;
}

export interface StorageStats {
  totalFiles: number;
  totalSize: number;
  byType: TypeStats[];
  byProvider: ProviderStats[];
  byRegion: RegionStats[];
  bandwidth: BandwidthStats;
}

export interface TypeStats {
  type: string;
  files: number;
  size: number;
  percentage: number;
}

export interface ProviderStats {
  provider: string;
  files: number;
  size: number;
  cost: number;
  performance: ProviderPerformance;
}

export interface ProviderPerformance {
  uploadSpeed: number;
  downloadSpeed: number;
  availability: number;
  latency: number;
}

export interface RegionStats {
  region: string;
  files: number;
  size: number;
  providers: string[];
}

export interface BandwidthStats {
  upload: BandwidthUsage;
  download: BandwidthUsage;
  total: BandwidthUsage;
}

export interface BandwidthUsage {
  current: number;
  peak: number;
  average: number;
  limit: number;
}

export class MultimediaStorageManager extends EventEmitter {
  private logger: Logger;
  private config: MultimediaStorageConfig;
  private providers: Map<string, StorageProvider> = new Map();
  private files: Map<string, MultimediaFile> = new Map();
  private uploadManager: UploadManager;
  private downloadManager: DownloadManager;
  private replicationManager: ReplicationManager;
  private lifecycleManager: LifecycleManager;
  private performanceMonitor: StoragePerformanceMonitor;
  private securityManager: StorageSecurityManager;

  constructor(config: MultimediaStorageConfig) {
    super();
    this.config = config;
    this.logger = new Logger("MultimediaStorageManager");

    this.initializeComponents();
    this.setupEventHandlers();
  }

  /**
   * Initializes the storage manager
   */
  async initialize(): Promise<void> {
    try {
      this.logger.info("Initializing Multimedia Storage Manager");

      // Initialize providers
      await this.initializeProviders();

      // Initialize managers
      await this.uploadManager.initialize();
      await this.downloadManager.initialize();
      await this.replicationManager.initialize();
      await this.lifecycleManager.initialize();

      // Start monitoring
      await this.performanceMonitor.start();

      // Initialize security
      await this.securityManager.initialize();

      this.emit("initialized");
    } catch (error) {
      this.logger.error("Failed to initialize storage manager", error);
      throw error;
    }
  }

  /**
   * Uploads a multimedia file
   */
  async uploadFile(
    request: UploadRequest,
  ): Promise<ServiceResponse<MultimediaFile>> {
    const startTime = Date.now();

    try {
      this.logger.info("Uploading file", {
        name: request.name,
        type: request.type,
        size: this.getFileSize(request.file),
      });

      // Validate request
      await this.validateUploadRequest(request);

      // Security scan
      await this.securityManager.scanFile(request.file);

      // Create file record
      const file = await this.createFileRecord(request);

      // Process upload
      const uploadResult = await this.uploadManager.upload(file, request);

      // Update file record
      file.storage = uploadResult.locations;
      file.status = "stored";
      file.metadata.modified = new Date();

      // Store file record
      this.files.set(file.id, file);

      // Start replication if configured
      if (this.config.replication.enabled) {
        await this.replicationManager.replicate(file);
      }

      // Apply lifecycle policies
      await this.lifecycleManager.applyPolicies(file);

      this.emit("file:uploaded", { fileId: file.id, file });

      return {
        success: true,
        data: file,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: Date.now() - startTime,
          region: "local",
        },
      };
    } catch (error) {
      this.logger.error("Failed to upload file", { name: request.name, error });
      return this.createErrorResponse("UPLOAD_FAILED", error.message);
    }
  }

  /**
   * Downloads a multimedia file
   */
  async downloadFile(
    request: DownloadRequest,
  ): Promise<ServiceResponse<ReadableStream>> {
    try {
      this.logger.info("Downloading file", {
        fileId: request.fileId,
        format: request.format,
      });

      const file = this.files.get(request.fileId);
      if (!file) {
        throw new Error(`File not found: ${request.fileId}`);
      }

      // Get optimal storage location
      const location = await this.getOptimalLocation(file, request.region);

      // Download file
      const stream = await this.downloadManager.download(location, request);

      // Update access metadata
      file.metadata.accessed = new Date();

      this.emit("file:downloaded", {
        fileId: request.fileId,
        location: location.provider,
      });

      return {
        success: true,
        data: stream,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: 0,
          region: location.region,
        },
      };
    } catch (error) {
      this.logger.error("Failed to download file", {
        fileId: request.fileId,
        error,
      });
      return this.createErrorResponse("DOWNLOAD_FAILED", error.message);
    }
  }

  /**
   * Gets file metadata
   */
  async getFile(fileId: string): Promise<ServiceResponse<MultimediaFile>> {
    try {
      const file = this.files.get(fileId);
      if (!file) {
        throw new Error(`File not found: ${fileId}`);
      }

      return {
        success: true,
        data: file,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: 0,
          region: "local",
        },
      };
    } catch (error) {
      this.logger.error("Failed to get file", { fileId, error });
      return this.createErrorResponse("FILE_GET_FAILED", error.message);
    }
  }

  /**
   * Lists files with filtering and pagination
   */
  async listFiles(
    filters?: FileFilters,
    pagination?: Pagination,
  ): Promise<ServiceResponse<FileListResult>> {
    try {
      let files = Array.from(this.files.values());

      // Apply filters
      if (filters) {
        files = this.applyFilters(files, filters);
      }

      // Apply pagination
      const result = this.applyPagination(files, pagination);

      return {
        success: true,
        data: result,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: 0,
          region: "local",
        },
      };
    } catch (error) {
      this.logger.error("Failed to list files", error);
      return this.createErrorResponse("FILE_LIST_FAILED", error.message);
    }
  }

  /**
   * Deletes a file
   */
  async deleteFile(fileId: string): Promise<ServiceResponse<void>> {
    try {
      this.logger.info("Deleting file", { fileId });

      const file = this.files.get(fileId);
      if (!file) {
        throw new Error(`File not found: ${fileId}`);
      }

      // Delete from all storage locations
      const deletionPromises = file.storage.map((location) =>
        this.deleteFromLocation(location),
      );

      await Promise.allSettled(deletionPromises);

      // Remove from file registry
      this.files.delete(fileId);

      this.emit("file:deleted", { fileId });

      return {
        success: true,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: 0,
          region: "local",
        },
      };
    } catch (error) {
      this.logger.error("Failed to delete file", { fileId, error });
      return this.createErrorResponse("DELETE_FAILED", error.message);
    }
  }

  /**
   * Gets storage statistics
   */
  async getStats(): Promise<ServiceResponse<StorageStats>> {
    try {
      const stats = await this.calculateStats();

      return {
        success: true,
        data: stats,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: 0,
          region: "local",
        },
      };
    } catch (error) {
      this.logger.error("Failed to get stats", error);
      return this.createErrorResponse("STATS_GET_FAILED", error.message);
    }
  }

  /**
   * Gets performance metrics
   */
  async getMetrics(): Promise<ServiceResponse<PerformanceMetrics>> {
    try {
      const metrics = await this.performanceMonitor.getMetrics();

      return {
        success: true,
        data: metrics,
        metadata: {
          requestId: this.generateRequestId(),
          timestamp: new Date(),
          processingTime: 0,
          region: "local",
        },
      };
    } catch (error) {
      this.logger.error("Failed to get metrics", error);
      return this.createErrorResponse("METRICS_GET_FAILED", error.message);
    }
  }

  // ==================== Private Helper Methods ====================

  private initializeComponents(): void {
    this.uploadManager = new UploadManager(this.config);
    this.downloadManager = new DownloadManager(this.config);
    this.replicationManager = new ReplicationManager(this.config.replication);
    this.lifecycleManager = new LifecycleManager(this.config.lifecycle);
    this.performanceMonitor = new StoragePerformanceMonitor();
    this.securityManager = new StorageSecurityManager();
  }

  private setupEventHandlers(): void {
    this.uploadManager.on(
      "upload:progress",
      this.handleUploadProgress.bind(this),
    );
    this.downloadManager.on(
      "download:progress",
      this.handleDownloadProgress.bind(this),
    );
    this.replicationManager.on(
      "replication:completed",
      this.handleReplicationCompleted.bind(this),
    );
    this.lifecycleManager.on(
      "lifecycle:applied",
      this.handleLifecycleApplied.bind(this),
    );
  }

  private async initializeProviders(): Promise<void> {
    // Initialize storage providers based on configuration
    for (const bucketConfig of this.config.buckets) {
      const provider: StorageProvider = {
        name: bucketConfig.name,
        type: this.getProviderType(bucketConfig.region),
        endpoint: this.getProviderEndpoint(bucketConfig.region),
        credentials: this.getProviderCredentials(bucketConfig.name),
        features: this.getProviderFeatures(bucketConfig.name),
        limits: this.getProviderLimits(bucketConfig.name),
      };

      this.providers.set(provider.name, provider);
    }
  }

  private async validateUploadRequest(request: UploadRequest): Promise<void> {
    // Validate file size
    const fileSize = this.getFileSize(request.file);
    const maxSize = this.getMaxFileSize(request.options?.providers);

    if (fileSize > maxSize) {
      throw new Error(`File size ${fileSize} exceeds maximum ${maxSize}`);
    }

    // Validate file type
    if (!this.isAllowedFileType(request.type)) {
      throw new Error(`File type not allowed: ${request.type}`);
    }

    // Validate providers
    if (request.options?.providers) {
      for (const provider of request.options.providers) {
        if (!this.providers.has(provider)) {
          throw new Error(`Unknown provider: ${provider}`);
        }
      }
    }
  }

  private async createFileRecord(
    request: UploadRequest,
  ): Promise<MultimediaFile> {
    const fileId = this.generateFileId();
    const checksum = await this.calculateChecksum(request.file);

    return {
      id: fileId,
      name: request.name,
      type: this.determineFileType(request.type, request.name),
      format: this.extractFormat(request.name),
      size: this.getFileSize(request.file),
      checksum,
      metadata: {
        created: new Date(),
        modified: new Date(),
        accessed: new Date(),
        contentType: request.type,
        tags: request.metadata?.tags || [],
        description: request.metadata?.description,
        ...request.metadata,
      },
      storage: [],
      status: "uploading",
    };
  }

  private async getOptimalLocation(
    file: MultimediaFile,
    region?: string,
  ): Promise<StorageLocation> {
    // Find best location based on region, performance, and availability
    let bestLocation = file.storage[0];

    if (region) {
      // Prefer locations in the same region
      const regionalLocation = file.storage.find(
        (loc) => loc.region === region,
      );
      if (regionalLocation) {
        bestLocation = regionalLocation;
      }
    }

    // Consider provider performance
    const providerPerf = await this.performanceMonitor.getProviderPerformance(
      bestLocation.provider,
    );

    // Find better performing location if available
    for (const location of file.storage) {
      const perf = await this.performanceMonitor.getProviderPerformance(
        location.provider,
      );
      if (
        perf.downloadSpeed > providerPerf.downloadSpeed &&
        perf.availability > 0.99
      ) {
        bestLocation = location;
      }
    }

    return bestLocation;
  }

  private async deleteFromLocation(location: StorageLocation): Promise<void> {
    const provider = this.providers.get(location.provider);
    if (!provider) {
      throw new Error(`Provider not found: ${location.provider}`);
    }

    // Implementation would use provider-specific deletion
    this.logger.debug("Deleting from location", {
      provider: provider.name,
      key: location.key,
    });
  }

  private async calculateStats(): Promise<StorageStats> {
    const files = Array.from(this.files.values());

    const totalFiles = files.length;
    const totalSize = files.reduce((sum, file) => sum + file.size, 0);

    const byType = this.calculateTypeStats(files);
    const byProvider = await this.calculateProviderStats(files);
    const byRegion = this.calculateRegionStats(files);
    const bandwidth = await this.performanceMonitor.getBandwidthStats();

    return {
      totalFiles,
      totalSize,
      byType,
      byProvider,
      byRegion,
      bandwidth,
    };
  }

  private calculateTypeStats(files: MultimediaFile[]): TypeStats[] {
    const typeMap = new Map<string, { files: number; size: number }>();

    for (const file of files) {
      const existing = typeMap.get(file.type) || { files: 0, size: 0 };
      existing.files++;
      existing.size += file.size;
      typeMap.set(file.type, existing);
    }

    const totalSize = files.reduce((sum, file) => sum + file.size, 0);

    return Array.from(typeMap.entries()).map(([type, stats]) => ({
      type,
      files: stats.files,
      size: stats.size,
      percentage: (stats.size / totalSize) * 100,
    }));
  }

  private async calculateProviderStats(
    files: MultimediaFile[],
  ): Promise<ProviderStats[]> {
    const providerMap = new Map<string, { files: number; size: number }>();

    for (const file of files) {
      for (const location of file.storage) {
        const existing = providerMap.get(location.provider) || {
          files: 0,
          size: 0,
        };
        existing.files++;
        existing.size += file.size;
        providerMap.set(location.provider, existing);
      }
    }

    const results: ProviderStats[] = [];

    for (const [provider, stats] of providerMap.entries()) {
      const performance =
        await this.performanceMonitor.getProviderPerformance(provider);

      results.push({
        provider,
        files: stats.files,
        size: stats.size,
        cost: this.calculateProviderCost(provider, stats.size),
        performance,
      });
    }

    return results;
  }

  private calculateRegionStats(files: MultimediaFile[]): RegionStats[] {
    const regionMap = new Map<
      string,
      { files: number; size: number; providers: Set<string> }
    >();

    for (const file of files) {
      for (const location of file.storage) {
        const existing = regionMap.get(location.region) || {
          files: 0,
          size: 0,
          providers: new Set<string>(),
        };
        existing.files++;
        existing.size += file.size;
        existing.providers.add(location.provider);
        regionMap.set(location.region, existing);
      }
    }

    return Array.from(regionMap.entries()).map(([region, stats]) => ({
      region,
      files: stats.files,
      size: stats.size,
      providers: Array.from(stats.providers),
    }));
  }

  private applyFilters(
    files: MultimediaFile[],
    filters: FileFilters,
  ): MultimediaFile[] {
    return files.filter((file) => {
      if (filters.type && file.type !== filters.type) return false;
      if (filters.format && file.format !== filters.format) return false;
      if (filters.minSize && file.size < filters.minSize) return false;
      if (filters.maxSize && file.size > filters.maxSize) return false;
      if (
        filters.tags &&
        !filters.tags.every((tag) => file.metadata.tags.includes(tag))
      )
        return false;
      return true;
    });
  }

  private applyPagination(
    files: MultimediaFile[],
    pagination?: Pagination,
  ): FileListResult {
    const page = pagination?.page || 1;
    const limit = pagination?.limit || 50;
    const offset = (page - 1) * limit;

    const paginatedFiles = files.slice(offset, offset + limit);

    return {
      files: paginatedFiles,
      total: files.length,
      page,
      limit,
      hasMore: offset + limit < files.length,
    };
  }

  // Utility methods
  private getFileSize(file: File | Buffer | ReadableStream): number {
    if (file instanceof File) return file.size;
    if (Buffer.isBuffer(file)) return file.length;
    return 0; // For streams, size might not be known
  }

  private getMaxFileSize(providers?: string[]): number {
    if (!providers || providers.length === 0) {
      return Math.max(
        ...Array.from(this.providers.values()).map((p) => p.limits.maxFileSize),
      );
    }

    return Math.max(
      ...providers.map((p) => this.providers.get(p)?.limits.maxFileSize || 0),
    );
  }

  private isAllowedFileType(type: string): boolean {
    const allowedTypes = [
      "image/jpeg",
      "image/png",
      "image/gif",
      "image/webp",
      "video/mp4",
      "video/webm",
      "video/avi",
      "video/mov",
      "audio/mp3",
      "audio/wav",
      "audio/ogg",
      "audio/flac",
      "application/pdf",
      "text/plain",
      "application/json",
    ];

    return allowedTypes.includes(type);
  }

  private determineFileType(
    contentType: string,
    filename: string,
  ): "image" | "video" | "audio" | "document" | "other" {
    if (contentType.startsWith("image/")) return "image";
    if (contentType.startsWith("video/")) return "video";
    if (contentType.startsWith("audio/")) return "audio";
    if (contentType.includes("pdf") || contentType.includes("document"))
      return "document";
    return "other";
  }

  private extractFormat(filename: string): string {
    const extension = filename.split(".").pop()?.toLowerCase();
    return extension || "unknown";
  }

  private async calculateChecksum(
    file: File | Buffer | ReadableStream,
  ): Promise<string> {
    // Simplified checksum calculation
    const content = file.toString();
    let hash = 0;
    for (let i = 0; i < content.length; i++) {
      const char = content.charCodeAt(i);
      hash = (hash << 5) - hash + char;
      hash = hash & hash; // Convert to 32-bit integer
    }
    return hash.toString(16);
  }

  private getProviderType(region: string): "local" | "cloud" | "hybrid" {
    if (region === "local") return "local";
    return "cloud";
  }

  private getProviderEndpoint(region: string): string {
    // Provider-specific endpoint logic
    return `https://storage.${region}.example.com`;
  }

  private getProviderCredentials(providerName: string): ProviderCredentials {
    // Credential management logic
    return {};
  }

  private getProviderFeatures(providerName: string): ProviderFeatures {
    // Feature detection logic
    return {
      encryption: true,
      versioning: true,
      lifecycle: true,
      caching: true,
      streaming: true,
      transcoding: false,
    };
  }

  private getProviderLimits(providerName: string): ProviderLimits {
    // Limits configuration logic
    return {
      maxFileSize: 5 * 1024 * 1024 * 1024, // 5GB
      maxBandwidth: 100 * 1024 * 1024, // 100MB/s
      maxRequests: 10000,
      storageQuota: 1000 * 1024 * 1024 * 1024, // 1TB
    };
  }

  private calculateProviderCost(provider: string, size: number): number {
    // Cost calculation logic
    const costPerGB = 0.023; // Example rate
    return (size / (1024 * 1024 * 1024)) * costPerGB;
  }

  private generateFileId(): string {
    return `file_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
  }

  private generateRequestId(): string {
    return `req_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
  }

  private createErrorResponse(
    code: string,
    message: string,
  ): ServiceResponse<any> {
    return {
      success: false,
      error: {
        code,
        message,
        retryable: false,
        timestamp: new Date(),
      },
      metadata: {
        requestId: this.generateRequestId(),
        timestamp: new Date(),
        processingTime: 0,
        region: "local",
      },
    };
  }

  private handleUploadProgress(event: any): void {
    this.logger.debug("Upload progress", event);
    this.emit("upload:progress", event);
  }

  private handleDownloadProgress(event: any): void {
    this.logger.debug("Download progress", event);
    this.emit("download:progress", event);
  }

  private handleReplicationCompleted(event: any): void {
    this.logger.info("Replication completed", event);
    this.emit("replication:completed", event);
  }

  private handleLifecycleApplied(event: any): void {
    this.logger.debug("Lifecycle applied", event);
    this.emit("lifecycle:applied", event);
  }
}

// ==================== Supporting Interfaces ====================

interface FileFilters {
  type?: string;
  format?: string;
  minSize?: number;
  maxSize?: number;
  tags?: string[];
  createdAfter?: Date;
  createdBefore?: Date;
}

interface Pagination {
  page: number;
  limit: number;
}

interface FileListResult {
  files: MultimediaFile[];
  total: number;
  page: number;
  limit: number;
  hasMore: boolean;
}

interface UploadResult {
  locations: StorageLocation[];
  transcoded?: TranscodedFile[];
  cached?: CachedFile[];
}

interface TranscodedFile {
  format: string;
  quality: string;
  size: number;
  location: StorageLocation;
}

interface CachedFile {
  region: string;
  url: string;
  ttl: number;
}

// ==================== Supporting Classes ====================
// (Abbreviated implementations for brevity)

class UploadManager extends EventEmitter {
  private config: MultimediaStorageConfig;
  private logger: Logger;

  constructor(config: MultimediaStorageConfig) {
    super();
    this.config = config;
    this.logger = new Logger("UploadManager");
  }

  async initialize(): Promise<void> {
    this.logger.info("Initializing upload manager");
  }

  async upload(
    file: MultimediaFile,
    request: UploadRequest,
  ): Promise<UploadResult> {
    // Upload implementation
    return {
      locations: [
        {
          provider: "default",
          bucket: "multimedia",
          key: `${file.id}/${file.name}`,
          region: "us-east-1",
          url: `https://example.com/${file.id}/${file.name}`,
          replicated: false,
        },
      ],
    };
  }
}

class DownloadManager extends EventEmitter {
  private config: MultimediaStorageConfig;
  private logger: Logger;

  constructor(config: MultimediaStorageConfig) {
    super();
    this.config = config;
    this.logger = new Logger("DownloadManager");
  }

  async initialize(): Promise<void> {
    this.logger.info("Initializing download manager");
  }

  async download(
    location: StorageLocation,
    request: DownloadRequest,
  ): Promise<ReadableStream> {
    // Download implementation
    return new ReadableStream();
  }
}

class ReplicationManager extends EventEmitter {
  private config: any;
  private logger: Logger;

  constructor(config: any) {
    super();
    this.config = config;
    this.logger = new Logger("ReplicationManager");
  }

  async initialize(): Promise<void> {
    this.logger.info("Initializing replication manager");
  }

  async replicate(file: MultimediaFile): Promise<void> {
    // Replication implementation
  }
}

class LifecycleManager extends EventEmitter {
  private config: any;
  private logger: Logger;

  constructor(config: any) {
    super();
    this.config = config;
    this.logger = new Logger("LifecycleManager");
  }

  async initialize(): Promise<void> {
    this.logger.info("Initializing lifecycle manager");
  }

  async applyPolicies(file: MultimediaFile): Promise<void> {
    // Lifecycle policy implementation
  }
}

class StoragePerformanceMonitor {
  private logger: Logger;

  constructor() {
    this.logger = new Logger("StoragePerformanceMonitor");
  }

  async start(): Promise<void> {
    this.logger.info("Starting storage performance monitor");
  }

  async getMetrics(): Promise<PerformanceMetrics> {
    return {
      latency: { mean: 0, p50: 0, p95: 0, p99: 0, max: 0 },
      throughput: {
        requestsPerSecond: 0,
        bytesPerSecond: 0,
        operationsPerSecond: 0,
      },
      utilization: { cpu: 0, memory: 0, disk: 0, network: 0 },
      errors: { rate: 0, percentage: 0, types: {} },
    };
  }

  async getProviderPerformance(provider: string): Promise<ProviderPerformance> {
    return {
      uploadSpeed: 10 * 1024 * 1024, // 10 MB/s
      downloadSpeed: 50 * 1024 * 1024, // 50 MB/s
      availability: 0.999,
      latency: 50, // ms
    };
  }

  async getBandwidthStats(): Promise<BandwidthStats> {
    return {
      upload: { current: 0, peak: 0, average: 0, limit: 0 },
      download: { current: 0, peak: 0, average: 0, limit: 0 },
      total: { current: 0, peak: 0, average: 0, limit: 0 },
    };
  }
}

class StorageSecurityManager {
  private logger: Logger;

  constructor() {
    this.logger = new Logger("StorageSecurityManager");
  }

  async initialize(): Promise<void> {
    this.logger.info("Initializing storage security manager");
  }

  async scanFile(file: File | Buffer | ReadableStream): Promise<void> {
    // Security scanning implementation
  }
}