Chunking data

chunks.swift

//: Playground - noun: a place where people can play

import UIKit

struct ChunkedData{
  let chunkCount:Int
  let chunkSize:Int
  let byteCount:Int
  let originalData:Data
  let chunks:[Data]

  init(data:Data,chunkSizeInBytes:Int){
    self.originalData = data

    self.byteCount = data.count

    self.chunkSize = chunkSizeInBytes

    self.chunkCount = byteCount/chunkSize

    var chunksForData:[Data] = []
    //todo

    self.chunks = chunksForData
  }

}


struct ChunkMessage{
  let chunk:Data
  let index:Int
}


///locate this in your bluetooth communication file
extension Data{

  //Used to send a specific chunk
  func sendChunk(to:String,chunkIndexMetadata:Int){
    let msg = ChunkMessage(chunk:self, index:chunkIndexMetadata)
      //implement bluetooth send
  }


}

///locate this in hyour bluetooth communication file
extension ChunkedData{
  func resendChunks(to destination:String,chunkIndicies:[Int]){
    for i in chunkIndicies{
      chunks[i].sendChunk(to: destination, chunkIndexMetadata: i)
    }
  }
}



let s = "aoisdjofaidsjfsfdijfoaisjfdoafisjdfoiajsfosdijfaosidfjsoafijoifj"

let data = s.data(using: .utf8)!

let chunks = ChunkedData(data: data, chunkSizeInBytes: 10).chunks

chunks.map { chunk in
  let string = String(decoding: chunk, as: UTF8.self)
  print("\(string) is a chunk")
}