package gen

import java.util
import java.util.{ArrayList, List, LinkedList}

class Frame {
  private def addSymbol(beginIndex: Int, lastIndex: Int) {
    var index = beginIndex
    while (index <= lastIndex) {
      symbol.add(index.toChar)
      index += 1
    }
  }

  var queue: util.Queue[Character] = new LinkedList()

  var symbol: List[Character] = new util.ArrayList[Character]();

  private def generateSymbolArray() {
    symbol = new ArrayList()
    addSymbol(65, 90)
    addSymbol(97, 122)
    val number = "0123456789"
    for (i <- 0 until 10) {
      symbol.add(number.charAt(i))
    }
  }

  def getRandomSymbol(): Char = {
    symbol.get((Math.random() * symbol.size).toInt)
  }

  def addSymbolQueue() {
    synchronized {
      queue.synchronized {
        if (queue.size < 50) {
          queue.add(getRandomSymbol)
        }
      }
    }
  }

  def getQueueSize(): Int = queue.size

  generateSymbolArray()
}