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//
//  PlaySoundViewControlerViewController.swift
//  Record Teen
//
//  Created by abdelrahman mohamed on 7/16/15.
//  Copyright (c) 2015 abdelrahman mohamed. All rights reserved.
//

import UIKit
import AVFoundation

class PlaySoundViewControlerViewController: UIViewController {
    
    var audioPlayer = AVAudioPlayer()
    var isPlaying = false
    var timer = NSTimer()
    var secondsTime = 0
    var audioLengthSeconds: Float = 0.0
    
    @IBOutlet weak var audioPlayerBar: UISlider!

    @IBOutlet weak var timeViewer: UILabel!
    
    func nsTimerToSeconds(NSTime: NSTimeInterval) -> Int{
        return Int(NSTime) % 60
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // handling the audio attachment
        var filePath = NSBundle.mainBundle().URLForResource("movie_quote", withExtension: "mp3")
        var error:NSError?
        
        audioPlayer = AVAudioPlayer(contentsOfURL: filePath!, error: &error)
        audioPlayer.enableRate = true
        
        // handling the playbar limits
        
        audioLengthSeconds = Float(nsTimerToSeconds(audioPlayer.duration))
        audioPlayerBar.maximumValue = audioLengthSeconds
        audioPlayerBar.minimumValue = 0.0
        audioPlayerBar.value = 0.0
        
        //setting time viewer
        timeViewer.text = "0.0 / \(audioLengthSeconds)"

        // Do any additional setup after loading the view.
    }


    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    func playRate(rate:Float) -> Void{
    
        audioPlayer.rate = rate
        audioPlayer.play()
        
        // starting timer 
        timer = NSTimer.scheduledTimerWithTimeInterval(0.1, target:self, selector: Selector("updateSlider"), userInfo: nil, repeats: true)
    }
    
    func updateSlider(){
        let currentTime = Float(nsTimerToSeconds(audioPlayer.currentTime))
        audioPlayerBar.value = currentTime
        timeViewer.text = "\(currentTime) / \(audioLengthSeconds)"
    }
    
    @IBAction func playSlowSound(sender: AnyObject) {
        playRate(0.5)
    }

    @IBAction func playFastSound(sender: AnyObject) {
        playRate(2.0)
    }
    
    @IBAction func stopPlayingAudio(sender: AnyObject) {
        audioPlayer.stop()
    }

    @IBAction func SliderChange(sender: UISlider) {
        audioPlayer.stop()
        var newTime = audioPlayerBar.value
        audioPlayer.currentTime = NSTimeInterval(newTime)
        audioPlayer.play()
        
        
    }
    

}