// A global callback for youtube... that makes me angry

var onYouTubePlayerReady = function( containerId ) {

  onYouTubePlayerReady[ containerId ] && onYouTubePlayerReady[ containerId ]();

};

onYouTubePlayerReady.stateChangeEventHandler = {};

Popcorn.player( "youtube", {

  _setup: function( options ) {

    var media = this,

        youtubeObject,

        container = document.createElement( "div" ),

        currentTime = 0,

        seekTime = 0,

        seeking = false,

        dataLoaded = false,

        // state code for volume changed polling

        volumeChanged = false,

        lastMuted = false,

        lastVolume = 0;

    container.id = media.id + Popcorn.guid();

    media.appendChild( container );

    var youtubeInit = function() {

      var flashvars,

          params,

          attributes,

          src;

      // expose a callback to this scope, that is called from the global callback youtube calls

      onYouTubePlayerReady[ container.id ] = function() {

        youtubeObject = document.getElementById( container.id );

        // more youtube callback nonsense

        onYouTubePlayerReady.stateChangeEventHandler[ container.id ] = function( state ) {

          // playing is state 1

          // paused is state 2

          if ( state === 1 ) {

            media.paused && media.play();

          // youtube fires paused events while seeking

          // this is the only way to get seeking events

          } else if ( state === 2 ) {

            // silly logic forced on me by the youtube API

            // calling youtube.seekTo triggers multiple events

            // with the second events getCurrentTime being the old time

            if ( seeking && seekTime === currentTime && seekTime !== youtubeObject.getCurrentTime() ) {

              seeking = false;

              youtubeObject.seekTo( currentTime );

              return;

            }

            currentTime = youtubeObject.getCurrentTime();

            media.dispatchEvent( "timeupdate" );

            !media.paused && media.pause();

          }

        };

        // youtube requires callbacks to be a string to a function path from the global scope

        youtubeObject.addEventListener( "onStateChange", "onYouTubePlayerReady.stateChangeEventHandler." + container.id );

        var timeupdate = function() {

          if ( !media.paused ) {

            currentTime = youtubeObject.getCurrentTime();

            media.dispatchEvent( "timeupdate" );

            setTimeout( timeupdate, 10 );

          }

        };

        var volumeupdate = function() {

          if ( lastMuted !== youtubeObject.isMuted() ) {

            lastMuted = youtubeObject.isMuted();

            media.dispatchEvent( "volumechange" );

          }

          if ( lastVolume !== youtubeObject.getVolume() ) {

            lastVolume = youtubeObject.getVolume();

            media.dispatchEvent( "volumechange" );

          }

          setTimeout( volumeupdate, 250 );

        };

        media.play = function() {

          media.paused = false;

          media.dispatchEvent( "play" );

          if ( dataLoaded ) {

            media.dispatchEvent( "loadeddata" );

            dataLoaded = false;

          }

          media.dispatchEvent( "playing" );

          timeupdate();

          youtubeObject.playVideo();

        };

        media.pause = function() {

          if ( !media.paused ) {

            media.paused = true;

            media.dispatchEvent( "pause" );

            youtubeObject.pauseVideo();

          }

        };

        Popcorn.player.defineProperty( media, "currentTime", {

          set: function( val ) {

            // make sure val is a number

            currentTime = seekTime = +val;

            seeking = true;

            media.dispatchEvent( "seeked" );

            media.dispatchEvent( "timeupdate" );

            youtubeObject.seekTo( currentTime );

            return currentTime;

          },

          get: function() {

            return currentTime;

          }

        });

        Popcorn.player.defineProperty( media, "muted", {

          set: function( val ) {

            if ( youtubeObject.isMuted() !== val ) {

              if ( val ) {

                youtubeObject.mute();

              } else {

                youtubeObject.unMute();

              }

              lastMuted = youtubeObject.isMuted();

              media.dispatchEvent( "volumechange" );

            }

            return youtubeObject.isMuted();

          },

          get: function() {

            return youtubeObject.isMuted();

          }

        });

        Popcorn.player.defineProperty( media, "volume", {

          set: function( val ) {

            if ( youtubeObject.getVolume() !== val ) {

              youtubeObject.setVolume( val );

              lastVolume = youtubeObject.getVolume();

              media.dispatchEvent( "volumechange" );

            }

            return youtubeObject.getVolume();

          },

          get: function() {

            return youtubeObject.getVolume();

          }

        });

        media.readyState = 4;

        media.dispatchEvent( "load" );

        dataLoaded = true;

        media.duration = youtubeObject.getDuration();

        media.dispatchEvent( "durationchange" );

        volumeupdate();

        if ( !media.paused ) {

          media.play();

        }

        media.paused && media.dispatchEvent( "loadeddata" );

      };

      options.controls = +options.controls === 0 || +options.controls === 1 ? options.controls : 1;

      options.annotations = +options.annotations === 1 || +options.annotations === 3 ? options.annotations : 1;

      flashvars = {

        playerapiid: container.id,

        controls: options.controls,

        iv_load_policy: options.annotations

      };

      params = {

        wmode: "transparent",

        allowScriptAccess: "always"

      };

      attributes = {

        id: container.id

      };

      src = /^.*[\/=](.{11})/.exec( media.src )[ 1 ];

      swfobject.embedSWF( "http://www.youtube.com/e/" + src + "?enablejsapi=1&playerapiid=" + container.id + "&version=3",

                          container.id, media.offsetWidth, media.offsetHeight, "8", null,

                          flashvars, params, attributes );

    };

    if ( !window.swfobject ) {

      Popcorn.getScript( "http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js", youtubeInit );

    } else {

      youtubeInit();

    }

  }

});