All files / src/utils chunk-size.ts

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export function totalChunks(fileSize: number) {
  const chunkSize = 4096
  const hashesPerChunk = 128
 
  function chunksAtLevel(chunkCount: number): number {
    if (chunkCount <= 1) {
      return chunkCount
    }
    const upperLevelChunks = Math.ceil(chunkCount / hashesPerChunk)
 
    return chunkCount + chunksAtLevel(upperLevelChunks)
  }
 
  const baseLevelChunks = Math.ceil(fileSize / chunkSize)
 
  return chunksAtLevel(baseLevelChunks)
}