smart-dropzone-react/dist/chunk-YGRSDHFI.cjs.map

🚀 A production-ready React dropzone component with smart defaults, drag & drop reordering, chunked uploads, resume functionality, and comprehensive provider support (Cloudinary, AWS S3, Supabase)

{"version":3,"sources":["../src/core/upload-resume.ts"],"names":["_UploadResumeManager","options","__publicField","FILE_SIZE","UPLOAD","TIMING","file","provider","fileId","chunks","checksum","resumeState","result","error","chunk","removed","totalChunks","i","start","end","data","buffer","hashBuffer","b","uploadedChunks","index","remainingChunks","uploadPromises","activeChunks","uploadPromise","success","attempts","maxAttempts","_chunk","_resumeState","_provider","progress","event","ms","resolve","UploadResumeManager"],"mappings":"qHA0CO,IAAMA,CAAAA,CAAN,MAAMA,CAAoB,CAQ/B,WAAA,CAAYC,EAAyB,EAAC,CAAG,CALzCC,mBAAAA,CAAA,IAAA,CAAQ,cAAA,CAAyC,IAAI,GAAA,CAAA,CACrDA,mBAAAA,CAAA,IAAA,CAAQ,SAAA,CAAA,CACRA,mBAAAA,CAAA,IAAA,CAAQ,eAAA,CAA6B,IAAI,GAAA,CAAA,CACzCA,mBAAAA,CAAA,IAAA,CAAQ,YAAA,CAAyC,IAAI,GAAA,CAAA,CAGnD,KAAK,OAAA,CAAU,CACb,SAAA,CAAWC,mBAAAA,CAAU,UAAA,CACrB,mBAAA,CAAqBC,mBAAAA,CAAO,qBAAA,CAC5B,aAAA,CAAeA,mBAAAA,CAAO,kBAAA,CACtB,UAAA,CAAYC,mBAAAA,CAAO,WAAA,CACnB,aAAc,IAAA,CACd,cAAA,CAAgB,IAAA,CAChB,iBAAA,CAAmB,KAAA,CACnB,GAAGJ,CACL,EACF,CAEA,OAAO,WAAA,EAAmC,CACxC,OAAKD,CAAAA,CAAoB,WACvBA,CAAAA,CAAoB,QAAA,CAAW,IAAIA,CAAAA,CAAAA,CAE9BA,CAAAA,CAAoB,QAC7B,CAEA,MAAM,iBAAA,CAAkBM,CAAAA,CAAYC,CAAAA,CAAwC,CAC1E,IAAMC,EAAS,IAAA,CAAK,cAAA,CAAeF,CAAI,CAAA,CACjCG,CAAAA,CAAS,IAAA,CAAK,YAAA,CAAaH,CAAI,CAAA,CAC/BI,CAAAA,CAAW,MAAM,IAAA,CAAK,iBAAA,CAAkBJ,CAAI,EAE5CK,CAAAA,CAA2B,CAC/B,MAAA,CAAAH,CAAAA,CACA,QAAA,CAAUF,CAAAA,CAAK,IAAA,CACf,SAAA,CAAWA,CAAAA,CAAK,IAAA,CAChB,YAAA,CAAc,CAAA,CACd,MAAA,CAAAG,CAAAA,CACA,OAAQ,QAAA,CACR,cAAA,CAAgB,EAAA,CAChB,QAAA,CAAAC,CAAAA,CACA,QAAA,CAAU,CACR,QAAA,CAAAH,CAAAA,CACA,QAAA,CAAUD,CAAAA,CAAK,IAAA,CACf,YAAA,CAAcA,CAAAA,CAAK,aACnB,SAAA,CAAW,IAAA,CAAK,GAAA,EAClB,CACF,CAAA,CAEA,YAAK,YAAA,CAAa,GAAA,CAAIE,CAAAA,CAAQG,CAAW,CAAA,CACzC,IAAA,CAAK,WAAW,GAAA,CAAIH,CAAAA,CAAQ,CAAC,GAAGC,CAAM,CAAC,CAAA,CAEhCE,CACT,CAEA,MAAM,YAAA,CAAaH,CAAAA,CAAgBD,CAAAA,CAAsC,CACvE,IAAMI,CAAAA,CAAc,IAAA,CAAK,YAAA,CAAa,GAAA,CAAIH,CAAM,CAAA,CAChD,GAAI,CAACG,CAAAA,CACH,OAAO,CACL,OAAA,CAAS,KAAA,CACT,YAAA,CAAc,EACd,SAAA,CAAW,CAAA,CACX,MAAA,CAAQ,EAAC,CACT,KAAA,CAAO,wBACT,CAAA,CAGF,GAAIA,CAAAA,CAAY,MAAA,GAAW,WAAA,CACzB,OAAO,CACL,QAAS,IAAA,CACT,YAAA,CAAcA,CAAAA,CAAY,SAAA,CAC1B,SAAA,CAAWA,CAAAA,CAAY,SAAA,CACvB,MAAA,CAAQA,CAAAA,CAAY,MACtB,CAAA,CAGFA,CAAAA,CAAY,MAAA,CAAS,UAAA,CACrB,KAAK,aAAA,CAAc,GAAA,CAAIH,CAAM,CAAA,CAE7B,GAAI,CAEE,IAAA,CAAK,OAAA,CAAQ,cAAA,EACf,MAAM,IAAA,CAAK,sBAAA,CAAuBG,CAAAA,CAAaJ,CAAQ,EAIzD,IAAMK,CAAAA,CAAS,MAAM,IAAA,CAAK,qBAAA,CAAsBD,CAAAA,CAAaJ,CAAQ,CAAA,CAErE,OAAIK,CAAAA,CAAO,OAAA,EACTD,CAAAA,CAAY,MAAA,CAAS,WAAA,CACrBA,EAAY,YAAA,CAAeA,CAAAA,CAAY,SAAA,EAEvCA,CAAAA,CAAY,MAAA,CAAS,QAAA,CAGhBC,CACT,CAAA,MAASC,CAAAA,CAAO,CACd,OAAAF,CAAAA,CAAY,MAAA,CAAS,QAAA,CACd,CACL,OAAA,CAAS,KAAA,CACT,YAAA,CAAcA,CAAAA,CAAY,YAAA,CAC1B,SAAA,CAAWA,EAAY,SAAA,CACvB,MAAA,CAAQA,CAAAA,CAAY,MAAA,CACpB,KAAA,CAAOE,CAAAA,YAAiB,MAAQA,CAAAA,CAAM,OAAA,CAAU,eAClD,CACF,CAAA,OAAE,CACA,IAAA,CAAK,aAAA,CAAc,MAAA,CAAOL,CAAM,EAClC,CACF,CAEA,WAAA,CAAYA,EAAyB,CACnC,IAAMG,CAAAA,CAAc,IAAA,CAAK,YAAA,CAAa,GAAA,CAAIH,CAAM,CAAA,CAChD,OAAI,CAACG,CAAAA,EAAeA,CAAAA,CAAY,MAAA,GAAW,WAAA,CAClC,OAGTA,CAAAA,CAAY,MAAA,CAAS,QAAA,CACd,IAAA,CACT,CAEA,YAAA,CAAaH,CAAAA,CAAyB,CACpC,IAAMG,CAAAA,CAAc,IAAA,CAAK,YAAA,CAAa,GAAA,CAAIH,CAAM,EAChD,OAAKG,CAAAA,EAKL,IAAA,CAAK,UAAA,CAAW,MAAA,CAAOH,CAAM,CAAA,CAC7B,IAAA,CAAK,aAAA,CAAc,MAAA,CAAOA,CAAM,CAAA,CAGhCG,CAAAA,CAAY,MAAA,CAAS,SACrBA,CAAAA,CAAY,YAAA,CAAe,CAAA,CAC3BA,CAAAA,CAAY,MAAA,CAAO,OAAA,CAASG,CAAAA,EAAU,CACpCA,CAAAA,CAAM,QAAA,CAAW,KAAA,CACjBA,CAAAA,CAAM,UAAA,CAAa,EACrB,CAAC,CAAA,CAEM,IAAA,EAfE,KAgBX,CAEA,cAAA,CAAeN,CAAAA,CAAyC,CACtD,OAAO,IAAA,CAAK,YAAA,CAAa,GAAA,CAAIA,CAAM,CACrC,CAEA,oBAAoC,CAClC,OAAO,KAAA,CAAM,IAAA,CAAK,IAAA,CAAK,YAAA,CAAa,MAAA,EAAQ,CAC9C,CAEA,gBAAA,CAAiBA,CAAAA,CAAyB,CACxC,IAAMO,EAAU,IAAA,CAAK,YAAA,CAAa,MAAA,CAAOP,CAAM,CAAA,CAC/C,OAAA,IAAA,CAAK,WAAW,MAAA,CAAOA,CAAM,CAAA,CAC7B,IAAA,CAAK,aAAA,CAAc,MAAA,CAAOA,CAAM,CAAA,CACzBO,CACT,CAEQ,YAAA,CAAaT,CAAAA,CAA2B,CAC9C,IAAMG,CAAAA,CAAwB,EAAC,CAG/B,GAAIH,CAAAA,CAAK,IAAA,GAAS,CAAA,CAChB,OAAAG,CAAAA,CAAO,IAAA,CAAK,CACV,EAAA,CAAI,CAAA,EAAGH,CAAAA,CAAK,IAAI,CAAA,QAAA,CAAA,CAChB,KAAA,CAAO,CAAA,CACP,GAAA,CAAK,CAAA,CACL,IAAA,CAAM,IAAI,KACV,QAAA,CAAU,KAAA,CACV,UAAA,CAAY,CAAA,CACZ,UAAA,CAAY,IAAA,CAAK,OAAA,CAAQ,aAC3B,CAAC,CAAA,CACMG,CAAAA,CAGT,IAAMO,CAAAA,CAAc,IAAA,CAAK,KAAKV,CAAAA,CAAK,IAAA,CAAO,IAAA,CAAK,OAAA,CAAQ,SAAS,CAAA,CAEhE,IAAA,IAASW,CAAAA,CAAI,CAAA,CAAGA,CAAAA,CAAID,CAAAA,CAAaC,CAAAA,EAAAA,CAAK,CACpC,IAAMC,EAAQD,CAAAA,CAAI,IAAA,CAAK,OAAA,CAAQ,SAAA,CACzBE,CAAAA,CAAM,IAAA,CAAK,GAAA,CAAID,CAAAA,CAAQ,IAAA,CAAK,OAAA,CAAQ,SAAA,CAAWZ,CAAAA,CAAK,IAAI,CAAA,CACxDc,EAAOd,CAAAA,CAAK,KAAA,CAAMY,CAAAA,CAAOC,CAAG,CAAA,CAElCV,CAAAA,CAAO,IAAA,CAAK,CACV,EAAA,CAAI,CAAA,EAAGH,CAAAA,CAAK,IAAI,CAAA,OAAA,EAAUW,CAAC,GAC3B,KAAA,CAAAC,CAAAA,CACA,GAAA,CAAAC,CAAAA,CACA,IAAA,CAAAC,CAAAA,CACA,QAAA,CAAU,KAAA,CACV,UAAA,CAAY,CAAA,CACZ,UAAA,CAAY,IAAA,CAAK,OAAA,CAAQ,aAC3B,CAAC,EACH,CAEA,OAAOX,CACT,CAEA,MAAc,kBAAkBH,CAAAA,CAA6B,CAG3D,IAAMe,CAAAA,CAAS,MAAMf,CAAAA,CAAK,aAAY,CAChCgB,CAAAA,CAAa,MAAM,MAAA,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{ FILE_SIZE, UPLOAD, TIMING } from \"./config\";\r\n\r\nexport interface UploadChunk {\r\n  id: string;\r\n  start: number;\r\n  end: number;\r\n  data: Blob;\r\n  uploaded: boolean;\r\n  retryCount: number;\r\n  maxRetries: number;\r\n}\r\n\r\nexport interface ResumeOptions {\r\n  chunkSize?: number;\r\n  maxConcurrentChunks?: number;\r\n  retryAttempts?: number;\r\n  retryDelay?: number;\r\n  enableResume?: boolean;\r\n  validateChunks?: boolean;\r\n  checksumAlgorithm?: \"md5\" | \"sha1\" | \"sha256\" | \"crc32\";\r\n}\r\n\r\nexport interface ResumeState {\r\n  fileId: string;\r\n  fileName: string;\r\n  totalSize: number;\r\n  uploadedSize: number;\r\n  chunks: UploadChunk[];\r\n  status: \"paused\" | \"resuming\" | \"uploading\" | \"completed\" | \"failed\";\r\n  lastChunkIndex: number;\r\n  checksum?: string;\r\n  metadata?: Record<string, any>;\r\n}\r\n\r\nexport interface ResumeResult {\r\n  success: boolean;\r\n  uploadedSize: number;\r\n  totalSize: number;\r\n  chunks: UploadChunk[];\r\n  error?: string;\r\n}\r\n\r\nexport class UploadResumeManager {\r\n  private static instance: UploadResumeManager;\r\n  private static fileIdCounter = 0;\r\n  private resumeStates: Map<string, ResumeState> = new Map();\r\n  private options: Required<ResumeOptions>;\r\n  private activeUploads: Set<string> = new Set();\r\n  private chunkQueue: Map<string, UploadChunk[]> = new Map();\r\n\r\n  constructor(options: ResumeOptions = {}) {\r\n    this.options = {\r\n      chunkSize: FILE_SIZE.CHUNK_SIZE,\r\n      maxConcurrentChunks: UPLOAD.MAX_CONCURRENT_CHUNKS,\r\n      retryAttempts: UPLOAD.MAX_RETRY_ATTEMPTS,\r\n      retryDelay: TIMING.RETRY_DELAY,\r\n      enableResume: true,\r\n      validateChunks: true,\r\n      checksumAlgorithm: \"md5\",\r\n      ...options,\r\n    };\r\n  }\r\n\r\n  static getInstance(): UploadResumeManager {\r\n    if (!UploadResumeManager.instance) {\r\n      UploadResumeManager.instance = new UploadResumeManager();\r\n    }\r\n    return UploadResumeManager.instance;\r\n  }\r\n\r\n  async createResumeState(file: File, provider: string): Promise<ResumeState> {\r\n    const fileId = this.generateFileId(file);\r\n    const chunks = this.createChunks(file);\r\n    const checksum = await this.calculateChecksum(file);\r\n\r\n    const resumeState: ResumeState = {\r\n      fileId,\r\n      fileName: file.name,\r\n      totalSize: file.size,\r\n      uploadedSize: 0,\r\n      chunks,\r\n      status: \"paused\",\r\n      lastChunkIndex: -1,\r\n      checksum,\r\n      metadata: {\r\n        provider,\r\n        mimeType: file.type,\r\n        lastModified: file.lastModified,\r\n        createdAt: Date.now(),\r\n      },\r\n    };\r\n\r\n    this.resumeStates.set(fileId, resumeState);\r\n    this.chunkQueue.set(fileId, [...chunks]);\r\n\r\n    return resumeState;\r\n  }\r\n\r\n  async resumeUpload(fileId: string, provider: any): Promise<ResumeResult> {\r\n    const resumeState = this.resumeStates.get(fileId);\r\n    if (!resumeState) {\r\n      return {\r\n        success: false,\r\n        uploadedSize: 0,\r\n        totalSize: 0,\r\n        chunks: [],\r\n        error: \"Resume state not found\",\r\n      };\r\n    }\r\n\r\n    if (resumeState.status === \"completed\") {\r\n      return {\r\n        success: true,\r\n        uploadedSize: resumeState.totalSize,\r\n        totalSize: resumeState.totalSize,\r\n        chunks: resumeState.chunks,\r\n      };\r\n    }\r\n\r\n    resumeState.status = \"resuming\";\r\n    this.activeUploads.add(fileId);\r\n\r\n    try {\r\n      // Validate existing chunks if validation is enabled\r\n      if (this.options.validateChunks) {\r\n        await this.validateExistingChunks(resumeState, provider);\r\n      }\r\n\r\n      // Resume from last successful chunk\r\n      const result = await this.uploadRemainingChunks(resumeState, provider);\r\n\r\n      if (result.success) {\r\n        resumeState.status = \"completed\";\r\n        resumeState.uploadedSize = resumeState.totalSize;\r\n      } else {\r\n        resumeState.status = \"failed\";\r\n      }\r\n\r\n      return result;\r\n    } catch (error) {\r\n      resumeState.status = \"failed\";\r\n      return {\r\n        success: false,\r\n        uploadedSize: resumeState.uploadedSize,\r\n        totalSize: resumeState.totalSize,\r\n        chunks: resumeState.chunks,\r\n        error: error instanceof Error ? error.message : \"Unknown error\",\r\n      };\r\n    } finally {\r\n      this.activeUploads.delete(fileId);\r\n    }\r\n  }\r\n\r\n  pauseUpload(fileId: string): boolean {\r\n    const resumeState = this.resumeStates.get(fileId);\r\n    if (!resumeState || resumeState.status === \"completed\") {\r\n      return false;\r\n    }\r\n\r\n    resumeState.status = \"paused\";\r\n    return true;\r\n  }\r\n\r\n  cancelUpload(fileId: string): boolean {\r\n    const resumeState = this.resumeStates.get(fileId);\r\n    if (!resumeState) {\r\n      return false;\r\n    }\r\n\r\n    // Clean up chunks\r\n    this.chunkQueue.delete(fileId);\r\n    this.activeUploads.delete(fileId);\r\n\r\n    // Reset state\r\n    resumeState.status = \"paused\";\r\n    resumeState.uploadedSize = 0;\r\n    resumeState.chunks.forEach((chunk) => {\r\n      chunk.uploaded = false;\r\n      chunk.retryCount = 0;\r\n    });\r\n\r\n    return true;\r\n  }\r\n\r\n  getResumeState(fileId: string): ResumeState | undefined {\r\n    return this.resumeStates.get(fileId);\r\n  }\r\n\r\n  getAllResumeStates(): ResumeState[] {\r\n    return Array.from(this.resumeStates.values());\r\n  }\r\n\r\n  clearResumeState(fileId: string): boolean {\r\n    const removed = this.resumeStates.delete(fileId);\r\n    this.chunkQueue.delete(fileId);\r\n    this.activeUploads.delete(fileId);\r\n    return removed;\r\n  }\r\n\r\n  private createChunks(file: File): UploadChunk[] {\r\n    const chunks: UploadChunk[] = [];\r\n\r\n    // Handle zero-byte files\r\n    if (file.size === 0) {\r\n      chunks.push({\r\n        id: `${file.name}-chunk-0`,\r\n        start: 0,\r\n        end: 0,\r\n        data: new Blob(),\r\n        uploaded: false,\r\n        retryCount: 0,\r\n        maxRetries: this.options.retryAttempts,\r\n      });\r\n      return chunks;\r\n    }\r\n\r\n    const totalChunks = Math.ceil(file.size / this.options.chunkSize);\r\n\r\n    for (let i = 0; i < totalChunks; i++) {\r\n      const start = i * this.options.chunkSize;\r\n      const end = Math.min(start + this.options.chunkSize, file.size);\r\n      const data = file.slice(start, end);\r\n\r\n      chunks.push({\r\n        id: `${file.name}-chunk-${i}`,\r\n        start,\r\n        end,\r\n        data,\r\n        uploaded: false,\r\n        retryCount: 0,\r\n        maxRetries: this.options.retryAttempts,\r\n      });\r\n    }\r\n\r\n    return chunks;\r\n  }\r\n\r\n  private async calculateChecksum(file: File): Promise<string> {\r\n    // This is a simplified checksum calculation\r\n    // In production, you'd use a proper crypto library\r\n    const buffer = await file.arrayBuffer();\r\n    const hashBuffer = await crypto.subtle.digest(\"SHA-256\", buffer);\r\n    const hashArray = Array.from(new Uint8Array(hashBuffer));\r\n    return hashArray.map((b) => b.toString(16).padStart(2, \"0\")).join(\"\");\r\n  }\r\n\r\n  private async validateExistingChunks(\r\n    resumeState: ResumeState,\r\n    provider: any\r\n  ): Promise<void> {\r\n    // Check with provider which chunks are already uploaded\r\n    try {\r\n      const uploadedChunks =\r\n        (await provider.getUploadedChunks?.(resumeState.fileId)) || [];\r\n\r\n      resumeState.chunks.forEach((chunk, index) => {\r\n        if (uploadedChunks.includes(index)) {\r\n          chunk.uploaded = true;\r\n          resumeState.uploadedSize += chunk.end - chunk.start;\r\n          resumeState.lastChunkIndex = Math.max(\r\n            resumeState.lastChunkIndex,\r\n            index\r\n          );\r\n        }\r\n      });\r\n    } catch (error) {\r\n      console.warn(\"Failed to validate existing chunks:\", error);\r\n      // Continue without validation\r\n    }\r\n  }\r\n\r\n  private async uploadRemainingChunks(\r\n    resumeState: ResumeState,\r\n    provider: any\r\n  ): Promise<ResumeResult> {\r\n    const remainingChunks = resumeState.chunks.filter(\r\n      (chunk) => !chunk.uploaded\r\n    );\r\n\r\n    if (remainingChunks.length === 0) {\r\n      return {\r\n        success: true,\r\n        uploadedSize: resumeState.totalSize,\r\n        totalSize: resumeState.totalSize,\r\n        chunks: resumeState.chunks,\r\n      };\r\n    }\r\n\r\n    // Upload chunks with concurrency control\r\n    const uploadPromises: Promise<boolean>[] = [];\r\n    const activeChunks = new Set<string>();\r\n\r\n    for (const chunk of remainingChunks) {\r\n      if (activeChunks.size >= this.options.maxConcurrentChunks) {\r\n        // Wait for a chunk to complete before starting another\r\n        await Promise.race(uploadPromises);\r\n        uploadPromises.splice(0, 1);\r\n      }\r\n\r\n      const uploadPromise = this.uploadChunk(chunk, resumeState, provider);\r\n      activeChunks.add(chunk.id);\r\n\r\n      uploadPromise.then(() => {\r\n        activeChunks.delete(chunk.id);\r\n      });\r\n\r\n      uploadPromises.push(uploadPromise);\r\n    }\r\n\r\n    // Wait for all remaining uploads to complete\r\n    const results = await Promise.all(uploadPromises);\r\n    const success = results.every((result) => result);\r\n\r\n    return {\r\n      success,\r\n      uploadedSize: resumeState.uploadedSize,\r\n      totalSize: resumeState.totalSize,\r\n      chunks: resumeState.chunks,\r\n      error: success ? undefined : \"Some chunks failed to upload\",\r\n    };\r\n  }\r\n\r\n  private async uploadChunk(\r\n    chunk: UploadChunk,\r\n    resumeState: ResumeState,\r\n    provider: any\r\n  ): Promise<boolean> {\r\n    let attempts = 0;\r\n    const maxAttempts = chunk.maxRetries + 1;\r\n\r\n    while (attempts < maxAttempts) {\r\n      try {\r\n        const result = await this.uploadChunkToProvider(\r\n          chunk,\r\n          resumeState,\r\n          provider\r\n        );\r\n\r\n        if (result) {\r\n          chunk.uploaded = true;\r\n          resumeState.uploadedSize += chunk.end - chunk.start;\r\n          resumeState.lastChunkIndex = Math.max(\r\n            resumeState.lastChunkIndex,\r\n            resumeState.chunks.indexOf(chunk)\r\n          );\r\n\r\n          // Emit progress event\r\n          this.emitProgressEvent(resumeState, chunk);\r\n          return true;\r\n        }\r\n      } catch (error) {\r\n        console.warn(`Chunk upload attempt ${attempts + 1} failed:`, error);\r\n        chunk.retryCount++;\r\n\r\n        if (attempts < maxAttempts - 1) {\r\n          await this.delay(\r\n            this.options.retryDelay *\r\n              Math.pow(TIMING.RETRY_EXPONENTIAL_BASE, attempts)\r\n          );\r\n        }\r\n      }\r\n\r\n      attempts++;\r\n    }\r\n\r\n    return false;\r\n  }\r\n\r\n  private async uploadChunkToProvider(\r\n    _chunk: UploadChunk,\r\n    _resumeState: ResumeState,\r\n    _provider: any\r\n  ): Promise<boolean> {\r\n    // This would be implemented by the specific provider\r\n    // For now, we'll simulate the upload\r\n    try {\r\n      // Simulate upload delay\r\n      await this.delay(\r\n        Math.random() * UPLOAD.UPLOAD_SIMULATION_DELAY_RANGE +\r\n          UPLOAD.UPLOAD_SIMULATION_DELAY_MIN\r\n      );\r\n\r\n      // Simulate success (in real implementation, this would call provider.uploadChunk)\r\n      return true;\r\n    } catch (error) {\r\n      throw new Error(`Failed to upload chunk: ${error}`);\r\n    }\r\n  }\r\n\r\n  private emitProgressEvent(\r\n    resumeState: ResumeState,\r\n    chunk: UploadChunk\r\n  ): void {\r\n    const progress = (resumeState.uploadedSize / resumeState.totalSize) * 100;\r\n\r\n    // Create a custom event for progress updates\r\n    const event = new CustomEvent(\"uploadProgress\", {\r\n      detail: {\r\n        fileId: resumeState.fileId,\r\n        fileName: resumeState.fileName,\r\n        progress,\r\n        uploadedSize: resumeState.uploadedSize,\r\n        totalSize: resumeState.totalSize,\r\n        chunkId: chunk.id,\r\n        chunkProgress: 100,\r\n      },\r\n    });\r\n\r\n    document.dispatchEvent(event);\r\n  }\r\n\r\n  private generateFileId(file: File): string {\r\n    UploadResumeManager.fileIdCounter++;\r\n    return `resume-${file.name}-${file.size}-${file.lastModified}-${Date.now()}-${UploadResumeManager.fileIdCounter}`;\r\n  }\r\n\r\n  private delay(ms: number): Promise<void> {\r\n    return new Promise((resolve) => setTimeout(resolve, ms));\r\n  }\r\n\r\n  // Utility methods for external use\r\n  getUploadProgress(fileId: string): number {\r\n    const resumeState = this.resumeStates.get(fileId);\r\n    if (!resumeState) return 0;\r\n\r\n    return (resumeState.uploadedSize / resumeState.totalSize) * 100;\r\n  }\r\n\r\n  isUploadActive(fileId: string): boolean {\r\n    return this.activeUploads.has(fileId);\r\n  }\r\n\r\n  getActiveUploads(): string[] {\r\n    return Array.from(this.activeUploads);\r\n  }\r\n\r\n  // Cleanup method\r\n  destroy(): void {\r\n    this.resumeStates.clear();\r\n    this.chunkQueue.clear();\r\n    this.activeUploads.clear();\r\n  }\r\n}\r\n"]}