//
//  ViewController.swift
//  Improve Your Typing

import UIKit
import AVFoundation

class ViewController: UIViewController {

    // *********************************
    // *********************************
    // *********************************
    // We will define our global variables
    // below (instance variables)
    // *********************************
    // *********************************
    // *********************************

    let synth = AVSpeechSynthesizer() // for speach
    
    
    // FINISH ME
    // create a variable called timer
    var ???? =  Timer()
    
    var timerInterval = 0.03
    
    // defines a variable for the screen size
    let screenSize:CGRect = UIScreen.main.bounds
    
    
    // defines variables for the screen height and screen width
    
    // FINISH ME
    // create a variable caled screenHeight
    var ?????? = CGFloat(0)
    
    
    // FINISH ME
    // create a variable caled screenWidth
    var ?????? = CGFloat(0)
    
    
    // FINISH ME
    // create a variable called gameOver and assign
    // it a value of true
    var ???? = ????
    
    
    // FINISH ME
    // create a variable called score and assign
    // it a value of 0
    var ???? = ?
    
    let wordSpeed = CGFloat(3)

	// FINISH ME
	// make sure that you have an image called explosion.png
	// in your project
    // we load the image of an explosion to be used later
    let explosionImage = UIImage(named: "explosion.png");
    
    
    // FINISH ME
    // create a variable called words
    // to refer to the list of all the words
    var ????? = [UILabel]()
    
    
    // FINISH ME
    // create a variable called listOfWords
    // to refer to the list of all the words to be used for the Labels
    var ?????? = [String]()

    
    // FINISH ME
    // create a variable called explosions
    // to refer to the list of all the explosions
    var ????????? = [UIImageView]()
    
    
    // FINISH ME
    // create a variable called explosionsTimes
    // to refer to the list of all the explosionsTimes
    // a list of all the explosions time  left on screen
    var ???????? = [Double]()
    
    
    // *********************************
    // *********************************
    // *********************************
    // We will connect our IBOutlet variables
    // below (instance variables, reference
    // variables)
    // *********************************
    // *********************************
    // *********************************
    
    // FINISH ME
    // this defines the variable nightSky
    // connect it to your UIImage object
    @IBOutlet weak var nightSky: UIImageView!

    
    // FINISH ME
    // this defines the variable scoreLabel
    // connect it to your Label object
    // that is on the UIViewController which
    // says "Score: 0" on it.
    @IBOutlet weak var scoreLabel: UILabel!
    
    
    // FINISH ME
    // this defines the variable word1
    // connect it to your UILabel object
    // that is on the UIViewController
    @IBOutlet weak var word1: UILabel!
    
    
    // FINISH ME
    // this defines the variable word2
    // connect it to your UILabel object
    // that is on the UIViewController
    @IBOutlet weak var word2: UILabel!
    
    
    // FINISH ME
    // this defines the variable word3
    // connect it to your UILabel object
    // that is on the UIViewController
    @IBOutlet weak var word3: UILabel!
    
    
    // FINISH ME
    // this defines the variable wordTextField
    // connect it to your UITextField object
    // that is on the UIViewController
    @IBOutlet weak var wordTextField: UITextField!
    
    
    // FINISH ME
    // this defines the variable startButton
    // connect it to your UIButton object
    // that is on the UIViewController
    @IBOutlet weak var startButton: UIButton!
    
    
    // FINISH ME
    // this defines the variable stopButton
    // connect it to your UIButton object
    // that is on the UIViewController
    @IBOutlet weak var stopButton: UIButton!
    

    // *********************************
    // *********************************
    // *********************************
    // Here come the functions!!!!!!!!!!
    // *********************************
    // *********************************
    // *********************************

    func speak(_ message:String)
    {
        let speech = AVSpeechUtterance(string: message)
        synth.speak(speech)
    }
    

    // FINISH ME
    // this defines the function moveSkyNightLeft
    func moveSkyNightLeft()
    {
        // FINISH ME
        // this gets the x and y value of the UIImageView
        var x = nightSky.frame.?????.? - 0.2
        
        let y = nightSky.frame.?????.?
        
        
        // FINISH ME
        // check to see if x is less than -200
        ?? ???????
        {
            // FINISH ME
            // set x by 0
            ????
        }
        
        
        // FINISH ME
        // this gets the width and height value of the UIImageView
        let width = nightSky.frame.????.????
        let height = nightSky.frame.?????.?????
        
        
        // this resets the frame of the UIImageView object
        nightSky.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }
    
    
    // this defines the function resetSkyNight
    func resetSkyNight()
    {
        let x = CGFloat(0)
        
        let y = CGFloat(50)
        
        let width = screenWidth * 2
        let height = screenHeight
        
        
        // this resets the frame of the UIImageView object
        nightSky.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }
    
    
    
    // FINISH ME
    // this defines the function resetStartButton
    func resetStartButton()
    {
        // FINISH ME
        // this gets the x and y value of the Button
        let x = wordTextField.frame.?????.?
        
        let y = CGFloat(screenHeight) - stopButton.frame.size.height - 50

        
        // FINISH ME
        // this gets the width and height value of the startButton
        let width = startButton.frame.?????.????
        let height = startButton.frame.????.????
        
        
        // this resets the frame of the UIImageView object
        startButton.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }
    

    
    // this defines the function resetStopButton
    func resetStopButton()
    {
        // this gets the x and y value of the UIImageView
        let x = wordTextField.frame.origin.x + wordTextField.frame.size.width - stopButton.frame.size.width + 20 //(20 padding)

        let y = CGFloat(screenHeight) - stopButton.frame.size.height - 50
        
        // FINISH ME
        // this gets the width and height value of the startButton
        let width = stopButton.??????.????.????
        let height = stopButton.??????.????.????
        
        
        // this resets the frame of the UIImageView object
        stopButton.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }

    
    // this defines the function resetScoreLabelPosition
    func resetScoreLabelPosition()
    {
        // this gets the x and y value of the scoreLabel
        let x = screenWidth/2 - scoreLabel.frame.size.width/2 //(20 padding)
        
        let y = CGFloat(screenHeight) - stopButton.frame.size.height - 50

        // FINISH ME
        // this gets the width and height value of the scoreLabel
        let width = scoreLabel.??????.????.????
        let height = scoreLabel.??????.????.????
        
        
        // this resets the frame of the scoreLabel object
        scoreLabel.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }

    

    // this defines the function randomlySelectWord
    func randomlySelectWord() -> String
    {
        // gets a random x value from 0 to listOfWords.count-1
        let x = Int(arc4random_uniform(UInt32(listOfWords.count)))
        if x >= 0 && x < listOfWords.count
        {
            return listOfWords[x]
        }
        else
        {
            return listOfWords[0]
        }
    }
    

    // this defines the function resetWordLocation()
    func resetWordTextFieldLocation()
    {
        let width = wordTextField.frame.size.width
        let height = wordTextField.frame.size.height
        
        // this gets the x and y value of the UITextField
        let x = screenWidth * 0.5 - width/2
        
        let y = CGFloat(screenHeight) - wordTextField.frame.size.height - startButton.frame.size.height - 100
        
        // this resets the frame of the UIImageView object
        wordTextField.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }
    

    func moveWordDown(_ word:UILabel)
    {
        // FINISH ME
        // get the x and y values from the
        // word's frame
        let x = word.??????.????.?
        var y = word.??????.????.?
        
        
        let width = word.frame.size.width
        let height = word.frame.size.height
        
        // FINISH ME
        // increase y by wordSpeed
        y = ???????
        
        word.frame = CGRect(x: x, y: y, width: width, height: height)

    }
    

    func moveWordOffTopOfScreen(_ word:UILabel)
    {
        // FINISH ME
        // get the x and y values from the
        // word's frame
        var x = word.??????.????.?
        var y = word.??????.????.?
        let width = word.frame.size.width
        let height = word.frame.size.height
        
        // gets a random x value from 0 to screenWidth
        x = CGFloat(arc4random_uniform(UInt32(screenWidth))) - width
        if x < 0
        {
            x = 0
        }
        // FINISH ME
        // set y to -350
        y = ????
        
        word.frame = CGRect(x: x, y: y, width: width, height: height)
        
        word.text = randomlySelectWord()
    }
    
    func checkWordForMatch(_ word:UILabel) -> Bool
    {
        let wordFromLabel = word.text!
        let wordFromTextField = wordTextField.text!

        if wordFromLabel == wordFromTextField
        {
            // they typed in the correct word
            // so create an explosion
            createAnExplosion(word)
            
            // FINISH ME
            // move the word off the top of the screen
            // call a function
            ????????????(word)
            
            return true
        }
        
        return false
    }
    

    // explosions and explosionsTimes
    func updateAndRemoveExplosionsIfTimeIsUp()
    {
        // FINISH ME
        // create a variable called i and set to 0
        var ? = ?
        
        // FINISH ME
        // loop through each explosion
        // i must be less than explosions.count
        while i < ????????
        {
            let explosion = explosions[i]
            
            explosionsTimes[i] = explosionsTimes[i] - timerInterval
            
            let explosionTime = explosionsTimes[i]
            
            // FINISH ME
            // see if the explosionTime is less than or equal to 0
            ???????????
            {
                
                explosion.removeFromSuperview()
                
                explosions.remove(at:i)
                
                explosionsTimes.remove(at:i)
                
            }
            else
            {
                // FINISH ME
                // increase i by adding 1
                ???????
            }
        }
    } // end of method removeAlienBulletsGoingOffTheScreen()
    
    
    
    func removeWordsGoingOffTheScreen()
    {
        // FINISH ME
        // loop through each word
        // and check for going off the screen
        for ???? in words
        {
            // see if the word goes off the screen
            if word.frame.origin.y > screenHeight
            {
                // FINISH ME
                // move this word off the top of the screen
                // hint: call a method and send it the word
                ???????????(word)
                
                // FINISH ME
                // subtract 5 from your score
                score = ???????
                
            }
        }
        
    }
    

    // we will increase the size of the explosion
    func moveExplosion(_ explosion:UIImageView)
    {
        // get the object's coordinates and
        // adjust them
        let x = explosion.frame.origin.x - 0.1
        let y = explosion.frame.origin.y - 0.1
        let width = explosion.frame.size.width + 0.2
        let height = explosion.frame.size.height + 0.2
        
        // this resets the frame of the UIImageView object
        explosion.frame = CGRect(x: x, y: y, width: width, height: height)
        
    }
    
    
    func moveExplosions()
    {
        // FINISH ME
        // loop through all explosions
        for explosion in ???????
        {
            // FINISH ME
            // Move the explosion by increasing the size
            // HINT: Call a method and
            // send to it the explosion
            ?????????(explosion)
        }
    }
    


    func moveWordsDown()
    {
        // FINISH ME
        // loop through all words
        for word in ???????
        {
            // FINISH ME
            // word is referring to 1 word from the words list
            // each time through the loop
            // Move this word down
            // HINT: Call a method (function)
            // and send to it word
            ????????(word)
        }
    }
    

    // creates an explosion object
    // over the sent object and
    // adds it the explosions list
    func createAnExplosion(_ object:UILabel)
    {
        // get the object's coordinates
        let x = object.frame.origin.x
        let y = object.frame.origin.y
        let width = object.frame.size.width
        let height = object.frame.size.height
        
        let explosion = UIImageView(frame: CGRect(x:x, y:y, width:width, height:height))
        
        explosion.image = explosionImage
        
        self.view.addSubview(explosion)
        
        // FINISH ME
        // append (add) this explosion to
        // explosions
        explosions.?????(???????)
        
        
        // FINISH ME
        // append (add) 1.0 to
        // explosionsTimes
        explosionsTimes.??????(???)
    }
    
    

    // ******************************
    // ******************************
    // ******************************
    // main timer loop (event)
    // this gets called every 0.01 seconds
    // i.e it runs every 0.01 seconds
    // ******************************
    // ******************************
    // ******************************
    @objc func timerAction()
    {
        // FINISH ME
        // here we check to see if the gameOver variable
        // is true
        if gameOver == ????
        {
            return // exits (quits) the function
        }
        
        
        // *********************************
        // *********************************
        // *********************************
        // We will move things below
        // remove stuff
        // and create stuff below
        // *********************************
        // *********************************
        // *********************************
        
        
        moveSkyNightLeft()
        
        moveExplosions()
        
        updateAndRemoveExplosionsIfTimeIsUp()
        
        
        
        // FINISH ME
        // move the words down
        // HINT: Call a method (function)
        ??????
        
        
        // FINISH ME
        // Remove words going off the screen
        // HINT: Call a method (function)
        ????????
        


        // *********************************
        // *********************************
        // *********************************
        // We will check for a win or a loss
        // and update the screen below
        // *********************************
        // *********************************
        // *********************************
        
        for word in words
        {
            if checkWordForMatch(word)
            {
                // FINISH ME
                // add 10 to your score
                score = ???????
                
                // FINISH ME
                // clear the wordTextField (set it to "")
                wordTextField.???? = ""
            }
        }
        
        
        // FINISH ME
        // update the scoreLabel
        // set scoreLabel.text to "Score:\(score)"
        scoreLabel.???? = ????????
        
        
        
        // FINISH ME
        // check to see if the score is less than or
        // equal to -50
        ????????
        {
            // FINISH ME
            // set the variable gameOver to true
            gameOver = ????
            
            
            // FINISH ME
            // set the scoreLabel.text to "You Lose"
            scoreLabel.???? = ??????
            
            speak("Ouch!  You Lose!")

            // we will stop the animation (timer)
            timer.invalidate()
            
            return
        }
        
        
        
        // FINISH ME
        // check to see if the score is greater than or
        // equal to 50
        ??????????
        {
            // FINISH ME
            // set the variable gameOver to true
            gameOver = ?????
            
            
            // FINISH ME
            // set the scoreLabel.text to "You Win"
            scoreLabel.???? = ???????
            
            speak("Yeah!  You Win!")
                
            // this shuts down the timer
            timer.invalidate()
            
            return
        }
        
        
    }
    
    
    func resetGame()
    {
        // FINISH ME
        // set the score to 0
        ???????
        
        
        resetSkyNight()
        
        resetWordTextFieldLocation()
        
        // FINISH ME
        // clear the wordTextField (set it to "")
        wordTextField.???? = ??


        // FINISH ME
        // set your score to 0
        ??????
        
        
        scoreLabel.text = "Score:\(score)"
        
        
        // FINISH ME
        // set the scoreLabel to "Score:\(score)"
        // notice that we are using interpolation to show
        // the value of the variable score
        scoreLabel.???? = ??????
        
        
        // FINISH ME
        // reset the words on the screen
        // for each word,
        // set the word.isHidden field to the value true
        for ???? in words
        {
            // FINISH ME
            word.?????? = ????
        }
        
        
        // remove each explosion from the apple draw list
        for explosion in explosions
        {
            explosion.removeFromSuperview()
        }
        
        
        // FINISH ME
        // remove all explosions from the explosions list
        ?????????.removeAll()
        
        
        
        
        // FINISH ME
        // remove all explosionsTimes from the explosionsTimes list
        ???????.removeAll()
        
        
        // FINISH ME
        // set the variable gameOver to the value true
        gameOver = ????
    }
    
    
    // FINISH ME
    // connect your StartButton here
    // Control + drag
    @IBAction func startButtonEvent(_ sender: UIButton)
    {
        timer.invalidate() // just in case this button is tapped multiple times
        
        resetGame()
        
        
        // FINISH ME
        // loop through each word in the list words
        for word in ?????
        {
            // FINISH ME
            // set the word isHidden property to false
            word.?????? = ?????
        }
        
        
        // FINISH ME
        // loop through each word in the list words
        for word in ?????
        {
            // FINISH ME
            // Move this word off the top of the screen
            // HINT: call a method
            ?????????(word)
        }
        
        
        // FINISH ME
        // set the variable gameOver to false
        gameOver = ?????
        
        
        // start the timer
        // and call timerAction() every 0.02 seconds
        timer = Timer.scheduledTimer(timeInterval: timerInterval, target: self, selector: #selector(timerAction), userInfo: nil, repeats: true)
        
    }
    
    
    // FINISH ME
    // connect your StopButton here
    // Control + drag
    @IBAction func stopButtonEvent(_ sender: UIButton)
    {
        // we turn the timer off
        timer.invalidate()
        
        resetGame()
    }
    
    

    
    
    
    
    
    
    
    
    
    
    // DO NOT ERASE THIS FUNCTION
    // APPLE CREATED IT FOR YOU
    override func viewDidLoad()
    {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        // get the width and height of the screen
        screenWidth = CGFloat(screenSize.width)
        screenHeight = CGFloat(screenSize.height)
        
        self.view.sendSubviewToBack(nightSky)
        
        resetSkyNight()
        
        resetStartButton()
        resetStopButton()
        resetScoreLabelPosition()
        
        // these must be in order from bottom up
        resetWordTextFieldLocation()
        

        words.append(word1)
        words.append(word2)
        words.append(word3)


        listOfWords.append("cat")
        listOfWords.append("dog")
        listOfWords.append("hat")
        listOfWords.append("shoe")
        listOfWords.append("good")
        listOfWords.append("bye")
        listOfWords.append("hello")
        listOfWords.append("mouse")

        
        // FINISH ME
        // here we get a random word from listOfWords
        // by calling the function randomlySelectWord()
        word1.text = randomlySelectWord()
        word2.text = randomlySelectWord()
        word3.text = randomlySelectWord()
        

        
    } // end of viewDidLoad()


} // end of class