Airgapped broadcast protocol

broadcastProtocol.ts

/**
 * Air gapped broadcast protocol for Heat Wallet.
 */
const RECIPIENT_ADDRESS = 0
const RECIPIENT_ADDRESS_TYPE = 1
const BLOCKCHAIN_NUM = 2
const ASSET_TYPE_NUM = 3
const ASSET_ID = 4
const TRANSACTION_TYPE_ID = 5
const TRANSACTION_HEX = 6
const SENDER_ADDRESS = 7
const SENDER_ADDRESS_TYPE = 8
const AMOUNT = 9
const FEE = 10
const MESSAGE = 11
const MESSAGE_IS_PRIVATE = 12
const NONCE = 13
const GASPRICE = 14
const GASLIMIT = 15
const CHAINID = 16
const CHANGE_ADDRESS = 17
const PERIOD = 18

export class BroadcastProtocolBuilder {
  private buffer: Array<any> = []

  set recipient_address(val:any) { this.buffer[RECIPIENT_ADDRESS] = val }
  set recipient_address_type(val:any) { this.buffer[RECIPIENT_ADDRESS_TYPE] = val }
  set blockchain_num(val:any) { this.buffer[BLOCKCHAIN_NUM] = val }
  set asset_type_num(val:any) { this.buffer[ASSET_TYPE_NUM] = val }
  set asset_id(val:any) { this.buffer[ASSET_ID] = val }
  set transaction_type_id(val:any) { this.buffer[TRANSACTION_TYPE_ID] = val }
  set transaction_hex(val:string) { this.buffer[TRANSACTION_HEX] = val.toUpperCase() }
  set sender_address(val:any) { this.buffer[SENDER_ADDRESS] = val }
  set sender_address_type(val:any) { this.buffer[SENDER_ADDRESS_TYPE] = val }
  set amount(val:any) { this.buffer[AMOUNT] = val }
  set fee(val:any) { this.buffer[FEE] = val }
  set message(val:any) { this.buffer[MESSAGE] = val }
  set message_is_private(val:any) { this.buffer[MESSAGE_IS_PRIVATE] = val ? 1 : 0 }
  set nonce(val:any) { this.buffer[NONCE] = val }
  set gasprice(val:any) { this.buffer[GASPRICE] = val }
  set gaslimit(val:any) { this.buffer[GASLIMIT] = val }
  set chainid(val:any) { this.buffer[CHAINID] = val }
  set change_address(val:any) { this.buffer[CHANGE_ADDRESS] = val }
  set period(val:any) { this.buffer[PERIOD] = val }

  public toString(): string {
    let str = ''
    this.buffer.forEach((val,index) => {
      let asString = `${val}`
      if (asString.indexOf('/') != -1) {
        throw new Error(`Value at index ${index} contains "/" character`)
      }
      str += `${val}/`
    })
    return str
  }
}