/* 
    Copyright (c) 2011 Microsoft Corporation.  All rights reserved.
    Use of this sample source code is subject to the terms of the Microsoft license 
    agreement under which you licensed this sample source code and is provided AS-IS.
    If you did not accept the terms of the license agreement, you are not authorized 
    to use this sample source code.  For the terms of the license, please see the 
    license agreement between you and Microsoft.
  
    To see all Code Samples for Windows Phone, visit http://go.microsoft.com/fwlink/?LinkID=219604 
  
*/
using System;
using System.Windows;
using System.Windows.Media;
using Microsoft.Phone.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.BackgroundAudio;
using System.Windows.Media.Imaging;
using System.Windows.Threading;
using System.Collections.Generic;

namespace sdkBackgroundAudioPlayerCS
{
    

    public partial class MainPage : PhoneApplicationPage
    {
        // Constructor
        public MainPage()
        {
            InitializeComponent();
            Loaded += new RoutedEventHandler(MainPage_Loaded);
        }

        void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            BackgroundAudioPlayer.Instance.PlayStateChanged += new EventHandler(Instance_PlayStateChanged);
            webBrowserTesto.Navigate(new Uri("Pirandello.htm", UriKind.Relative));
           
        }

        private DispatcherTimer timer = new DispatcherTimer();

        /// <summary>
        /// Checks to see if the BackgroundAudioPlayer is already playing.
        /// Initializes the UI controls accordingly.
        /// </summary>
        /// <param name="e"></param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            if (PlayState.Playing == BackgroundAudioPlayer.Instance.PlayerState)
            {
                //playButton.Content = "| |";     // Change to pause button
                txtCurrentTrack.Text = BackgroundAudioPlayer.Instance.Track.Title +
                                       " di " +
                                       BackgroundAudioPlayer.Instance.Track.Artist;
                     webBrowserTesto.Navigate(new Uri(BackgroundAudioPlayer.Instance.Track.Title + ".htm", UriKind.Relative));

                
                
            }

            else
            {
                //playButton.Content = ">";     // Change to play button
                txtCurrentTrack.Text = "";
            }

            StartTimer();
            
        }

        protected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e)
        {
            timer.Stop();
            timer.Tick -= new EventHandler(timer_tick);
            BackgroundAudioPlayer.Instance.PlayStateChanged -= new EventHandler(Instance_PlayStateChanged);
        }


        /// <summary>
        /// Updates the UI with the current song data.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void Instance_PlayStateChanged(object sender, EventArgs e)
        {
            switch (BackgroundAudioPlayer.Instance.PlayerState)
            {
                case PlayState.Playing:
                    PlayBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/pause.png", UriKind.Relative));
                    PrevBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/dietro.png", UriKind.Relative));
                    NextBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/avanti.png", UriKind.Relative));
                    break;

                case PlayState.Paused:
             
                case PlayState.Stopped:
                    PlayBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/PalyerBtn.png", UriKind.Relative));
                    break;
            }

            if (null != BackgroundAudioPlayer.Instance.Track)
            {
                txtCurrentTrack.Text = BackgroundAudioPlayer.Instance.Track.Title +
                                       " di " +
                                       BackgroundAudioPlayer.Instance.Track.Artist;

                webBrowserTesto.Navigate(new Uri(BackgroundAudioPlayer.Instance.Track.Title + ".htm", UriKind.Relative));

                slider1.Minimum = 0;
                slider1.Maximum = BackgroundAudioPlayer.Instance.Track.Duration.TotalMilliseconds;
                string text = BackgroundAudioPlayer.Instance.Track.Duration.ToString();
                EndTextBlock.Text = text.Substring(0, 8);
            }

      


        }


        #region Button Click Event Handlers

        /// <summary>
        /// Tells the background audio agent to skip to the previous track.
        /// </summary>
        /// <param name="sender">The button</param>
        /// <param name="e">Click event args</param>
        private void prevButton_Click(object sender, RoutedEventArgs e)
        {
            BackgroundAudioPlayer.Instance.SkipPrevious();
            slider1.Value = 0;

            // Prevent the user from repeatedly pressing the button and causing 
            // a backlong of button presses to be handled. This button is re-eneabled 
            // in the TrackReady Playstate handler.
            // prevButton.IsEnabled = false;
        }


        /// <summary>
        /// Tells the background audio agent to play the current 
        /// track or to pause if we're already playing.
        /// </summary>
        /// <param name="sender">The button</param>
        /// <param name="e">Click event args</param>
        private void playButton_Click(object sender, RoutedEventArgs e)
        {
            if (PlayState.Playing == BackgroundAudioPlayer.Instance.PlayerState)
            {
                BackgroundAudioPlayer.Instance.Pause();
                
            }
            else
            {
                BackgroundAudioPlayer.Instance.Play();
            }

        }

        /// <summary>
        /// Tells the background audio agent to skip to the next track.
        /// </summary>
        /// <param name="sender">The button</param>
        /// <param name="e">Click event args</param>
        private void nextButton_Click(object sender, RoutedEventArgs e)
        {
            
            BackgroundAudioPlayer.Instance.SkipNext();
            slider1.Value = 0;

            // Prevent the user from repeatedly pressing the button and causing 
            // a backlong of button presses to be handled. This button is re-eneabled 
            // in the TrackReady Playstate handler.
           // nextButton.IsEnabled = false;
        }

        #endregion Button Click Event Handlers

        private void PlayBtn_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            if (PlayState.Playing == BackgroundAudioPlayer.Instance.PlayerState)
            {
                BackgroundAudioPlayer.Instance.Pause();
                PlayBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/PalyerBtn.png", UriKind.Relative));
            }
            else
            {
                BackgroundAudioPlayer.Instance.Play();
                PlayBtn.Source =new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/Pause.png", UriKind.Relative));
            }

        }

        private void image1_ImageFailed(object sender, ExceptionRoutedEventArgs e)
        {

        }

        private void NextBtn_ImageFailed(object sender, ExceptionRoutedEventArgs e)
        {

        }
 

        private void NextBtn_ImageFailed_1(object sender, ExceptionRoutedEventArgs e)
        {
           
        }

        private void PrevBtn_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
                BackgroundAudioPlayer.Instance.SkipPrevious();

                // Prevent the user from repeatedly pressing the button and causing 
                // a backlong of button presses to be handled. This button is re-eneabled 
                // in the TrackReady Playstate handler.

            
                
                /*
                if (this.webBrowserTesto.Source.Equals("Candelora Capitolo 1.htm"))
                {
                    webBrowserTesto.Navigate(new Uri("Pirandello.htm", UriKind.Relative));
                    
                    
                }
                else if (this.webBrowserTesto.Source.Equals("Candelora Capitolo 2.htm"))
                {
                    webBrowserTesto.Navigate(new Uri("Candelora Capitolo 1.htm", UriKind.Relative));
                    
                }
                else if (this.webBrowserTesto.Source.Equals("Candelora Capitolo 3.htm"))
                {
                    webBrowserTesto.Navigate(new Uri("Candelora Capitolo 2.htm", UriKind.Relative));
                    
                }*/
        }

        private void PrevBtn_ImageFailed(object sender, ExceptionRoutedEventArgs e)
        {

        }

        private void NextBtn_MouseLeftButtonUp_1(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
             BackgroundAudioPlayer.Instance.SkipNext();

                // Prevent the user from repeatedly pressing the button and causing 
                // a backlong of button presses to be handled. This button is re-eneabled 
                // in the TrackReady Playstate handler.
            

                
            /*if(this.webBrowserTesto.Source.Equals("Pirandello.htm")){
                 webBrowserTesto.Navigate(new Uri("Candelora Capitolo 1.htm",UriKind.Relative));
                }
            else if (this.webBrowserTesto.Source.Equals("Candelora Capitolo 1.htm")) {
                webBrowserTesto.Navigate(new Uri("Candelora Capitolo 2.htm", UriKind.Relative));
            }
            else if (this.webBrowserTesto.Source.Equals("Candelora Capitolo 2.htm"))
            {
                webBrowserTesto.Navigate(new Uri("Candelora Capitolo 3.htm", UriKind.Relative));
            }*/
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            if (indexCanvas.Visibility == System.Windows.Visibility.Collapsed)
            {
                indexCanvas.Visibility = System.Windows.Visibility.Visible;
            }
            else indexCanvas.Visibility = System.Windows.Visibility.Collapsed;
         
        }

        private void linkPag0_Click(object sender, RoutedEventArgs e)
        {
            
            webBrowserTesto.Navigate(new Uri("Pirandello.htm", UriKind.Relative));
            indexCanvas.Visibility = System.Windows.Visibility.Collapsed;
            BackgroundAudioPlayer.Instance.Stop();
            slider1.Value = 0;
            BackgroundAudioPlayer.Instance.Track = MyAudioPlaybackAgent.AudioPlayer._playList[0];
            
        }

        private void linkPag1_Click(object sender, RoutedEventArgs e)
        {
            
            webBrowserTesto.Navigate(new Uri("Candelora Capitolo 1.htm", UriKind.Relative));
            indexCanvas.Visibility = System.Windows.Visibility.Collapsed;
            BackgroundAudioPlayer.Instance.Stop();
            slider1.Value = 0;
            BackgroundAudioPlayer.Instance.Track = MyAudioPlaybackAgent.AudioPlayer._playList[0];
            
        }

        private void linkPag2_Click(object sender, RoutedEventArgs e)
        {
           
            webBrowserTesto.Navigate(new Uri("Candelora Capitolo 2.htm", UriKind.Relative));
            indexCanvas.Visibility = System.Windows.Visibility.Collapsed;
            BackgroundAudioPlayer.Instance.Stop();
            slider1.Value = 0;
            BackgroundAudioPlayer.Instance.Track = MyAudioPlaybackAgent.AudioPlayer._playList[1];
            
        }

        private void linkPag3_Click(object sender, RoutedEventArgs e)
        {
            webBrowserTesto.Navigate(new Uri("Candelora Capitolo 3.htm", UriKind.Relative));
            indexCanvas.Visibility = System.Windows.Visibility.Collapsed;
            BackgroundAudioPlayer.Instance.Stop();
            slider1.Value = 0;
            BackgroundAudioPlayer.Instance.Track = MyAudioPlaybackAgent.AudioPlayer._playList[2];
            
        }

       
        private void enter_click_prevMouse(object sender, System.Windows.Input.MouseEventArgs e)
        {
            PrevBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/indietrodisable.png", UriKind.Relative));
        
        }

        private void leave_click_prevMouse(object sender, System.Windows.Input.MouseEventArgs e)
        {
            PrevBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/dietro.png", UriKind.Relative));
        
        }

        private void enter_click_nextMouse(object sender, System.Windows.Input.MouseEventArgs e)
        {
            NextBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/avantidisable.png", UriKind.Relative));
                
        }

        private void leave_click_nextMouse(object sender, System.Windows.Input.MouseEventArgs e)
        {
            NextBtn.Source = new BitmapImage(new Uri("/AudioBookCandeloraCS;component/Images/avanti.png", UriKind.Relative));
             
        }

        private void slider1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
           
            
        }

        public void StartTimer() {
            
            timer.Interval = new TimeSpan(0, 0, 0, 0, 500);
            timer.Tick += new EventHandler(timer_tick);
            timer.Start();
        }
        
        
        private void timer_tick(object sender, EventArgs e) {
            if (PlayState.Playing == BackgroundAudioPlayer.Instance.PlayerState) {
                slider1.Minimum = 0;
                slider1.Value = BackgroundAudioPlayer.Instance.Position.TotalMilliseconds;
                slider1.Maximum = BackgroundAudioPlayer.Instance.Track.Duration.TotalMilliseconds;

                string text = BackgroundAudioPlayer.Instance.Position.ToString();
                StartTextBlock.Text = text.Substring(0, 8);
                text = BackgroundAudioPlayer.Instance.Track.Duration.ToString();
                EndTextBlock.Text = text.Substring(0, 8);
            }
        }

        private void soundSlider_manipulationCompleted(object sender, System.Windows.Input.ManipulationCompletedEventArgs e)
        {
            // get slider value
            int sliderValue = (int)slider1.Value;
            // create timespan object with milliseconds (from slider value)
            TimeSpan timeSpan = new TimeSpan(0, 0, 0, 0, sliderValue);
            // set a new position of the song
            BackgroundAudioPlayer.Instance.Position = timeSpan;

        }

        private void hyperlinkButton1_Click(object sender, RoutedEventArgs e)
        {
            webBrowserTesto.Navigate(new Uri("http://it.wikipedia.org/wiki/Luigi_Pirandello",UriKind.RelativeOrAbsolute));
        }

       


        

 
    }
}