ViewController.swift

//
//  ViewController.swift
//  fun facts
//
//  Created by Gustavo Pares on 1/21/17.
//  Copyright © 2017 Gustavo Pares. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

  @IBOutlet weak var funFactLabel: UILabel!
  @IBOutlet weak var factBtn: UIButton!
  @IBOutlet weak var viewBG: UIView!
  
  let funFacts: [String] = ["this is awesome", "woot", "woot woot", "wooting is rough"]
  
  
  override func viewDidLoad() {
    super.viewDidLoad()
    funFactLabel.text = "An interesting fact"
    funFactLabel.textColor = UIColor.white
    factBtn.setTitleColor(.white, for: .normal)
    factBtn.setTitle("Click for an interesting fact", for: .normal)
    factBtn.backgroundColor = colorSelect(red: 100, green: 200, blue: 130)
    viewBG.backgroundColor =  colorSelect(red: 204, green: 102, blue: 255)
    }

  override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
  }

 
  @IBAction func factBtnClick(_ sender: UIButton) {
    sender.setTitle("More very interesting facts await..", for: .normal)
    funFactLabel.text = randomFact()
    viewBG.backgroundColor =  randomColor()

  }
  
  func randomFact() -> String {
    let factPosition = arc4random_uniform(UInt32(funFacts.count))
    let fact = funFacts[Int(factPosition)]
    return fact
  }
  
  func randomColor() -> UIColor {
    let green = arc4random_uniform(255)
    let red   = arc4random_uniform(255)
    let blue  = arc4random_uniform(255)
    return UIColor.init(colorLiteralRed: Float(red)/255, green: Float(green)/255, blue: Float(blue)/255, alpha: 1)
  }

  func colorSelect(red: Float, green: Float, blue: Float) -> UIColor {
    return UIColor.init(colorLiteralRed: red/255, green: green/255, blue: blue/255, alpha: 1)
  }
  
  
}