package ixee.cryptopals.solvers

import scala.io.Source
import ixee.cryptopals.utils.ByteUtils._
import ixee.cryptopals.utils.ConversionUtils._
import ixee.cryptopals.utils.FunctionUtils._
import ixee.cryptopals.utils._
import io.github.marklister.base64.Base64._

object Challenge6 {
  val path = "./data/6.txt"

  lazy val ciphertext =
    Source
      .fromFile(path)
      .getLines()
      .toSeq
      .flatten
      .mkString
      .toByteArray

  def run = {
    XorDecrypt.crackForMultiByteKey(ciphertext)
  }

  def findKey: Seq[Byte] =
    XorDecrypt.findBestMultiByteKey(ciphertext)

  val expectation =
    """|I'm back and I'm ringin' the bell 
       |A rockin' on the mike while the fly girls yell 
       |In ecstasy in the back of me 
       |Well that's my DJ Deshay cuttin' all them Z's 
       |Hittin' hard and the girlies goin' crazy 
       |Vanilla's on the mike, man I'm not lazy. 
       |
       |I'm lettin' my drug kick in 
       |It controls my mouth and I begin 
       |To just let it flow, let my concepts go 
       |My posse's to the side yellin', Go Vanilla Go! 
       |
       |Smooth 'cause that's the way I will be 
       |And if you don't give a damn, then 
       |Why you starin' at me 
       |So get off 'cause I control the stage 
       |There's no dissin' allowed 
       |I'm in my own phase 
       |The girlies sa y they love me and that is ok 
       |And I can dance better than any kid n' play 
       |
       |Stage 2 -- Yea the one ya' wanna listen to 
       |It's off my head so let the beat play through 
       |So I can funk it up and make it sound good 
       |1-2-3 Yo -- Knock on some wood 
       |For good luck, I like my rhymes atrocious 
       |Supercalafragilisticexpialidocious 
       |I'm an effect and that you can bet 
       |I can take a fly girl and make her wet. 
       |
       |I'm like Samson -- Samson to Delilah 
       |There's no denyin', You can try to hang 
       |But you'll keep tryin' to get my style 
       |Over and over, practice makes perfect 
       |But not if you're a loafer. 
       |
       |You'll get nowhere, no place, no time, no girls 
       |Soon -- Oh my God, homebody, you probably eat 
       |Spaghetti with a spoon! Come on and say it! 
       |
       |VIP. Vanilla Ice yep, yep, I'm comin' hard like a rhino 
       |Intoxicating so you stagger like a wino 
       |So punks stop trying and girl stop cryin' 
       |Vanilla Ice is sellin' and you people are buyin' 
       |'Cause why the freaks are jockin' like Crazy Glue 
       |Movin' and groovin' trying to sing along 
       |All through the ghetto groovin' this here song 
       |Now you're amazed by the VIP posse. 
       |
       |Steppin' so hard like a German Nazi 
       |Startled by the bases hittin' ground 
       |There's no trippin' on mine, I'm just gettin' down 
       |Sparkamatic, I'm hangin' tight like a fanatic 
       |You trapped me once and I thought that 
       |You might have it 
       |So step down and lend me your ear 
       |'89 in my time! You, '90 is my year. 
       |
       |You're weakenin' fast, YO! and I can tell it 
       |Your body's gettin' hot, so, so I can smell it 
       |So don't be mad and don't be sad 
       |'Cause the lyrics belong to ICE, You can call me Dad 
       |You're pitchin' a fit, so step back and endure 
       |Let the witch doctor, Ice, do the dance to cure 
       |So come up close and don't be square 
       |You wanna battle me -- Anytime, anywhere 
       |
       |You thought that I was weak, Boy, you're dead wrong 
       |So come on, everybody and sing this song 
       |
       |Say -- Play that funky music Say, go white boy, go white boy go 
       |play that funky music Go white boy, go white boy, go 
       |Lay down and boogie and play that funky music till you die. 
       |
       |Play that funky music Come on, Come on, let me hear 
       |Play that funky music white boy you say it, say it 
       |Play that funky music A little louder now 
       |Play that funky music, white boy Come on, Come on, Come on 
       |Play that funky music 
       |""".stripMargin
}