/* wrapper that simulates popcorn.js because

   popcorn is a bit unstable at the time */

IriSP.PopcornReplacement = {  

};

/** base class for our popcorn-compatible players.

 */

IriSP.PopcornReplacement.player = function(container, options) {

  /* the jwplayer calls the callbacks in the global space so we need to 

     preserve them this way */

    var _this = this;

  this.callbacks = {

      onReady:  IriSP._.bind(this.__initApi, this),

      onTime:   IriSP._.bind(this.__timeHandler, this),

      onPlay:   IriSP._.bind(this.__playHandler, this),

      onPause:  IriSP._.bind(this.__pauseHandler, this),

      onSeek:   IriSP._.bind(this.__seekHandler, this) 

  };

  this.media = { 

    "paused": true,

    "muted": false

  };

  this.container = container.slice(1); //eschew the '#'

  this.msgPump = {}; /* dictionnary used to receive and send messages */

  this.__codes = []; /* used to schedule the execution of a piece of code in 

                        a segment (similar to the popcorn.code plugin). */

  this._options = options;

};

IriSP.PopcornReplacement.player.prototype.listen = function(msg, callback) {

  if (!this.msgPump.hasOwnProperty(msg))

    this.msgPump[msg] = [];

  this.msgPump[msg].push(callback);

};

IriSP.PopcornReplacement.player.prototype.trigger = function(msg, params) {

  if (!this.msgPump.hasOwnProperty(msg))

    return;

  var d = this.msgPump[msg];

  for(var i = 0; i < d.length; i++) {

    d[i].call(window, params);

  }

};

IriSP.PopcornReplacement.player.prototype.guid = function(prefix) {

  var str = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {

      var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);

      return v.toString(16);

   });

  return prefix + str;

};

/** init the api after that flash player has been setup - called by the callback

    defined by the embedded flash player 

*/

IriSP.PopcornReplacement.player.prototype.__initApi = function() {

  this.trigger("loadedmetadata"); // we've done more than loading metadata of course,

                                                      // but popcorn doesn't need to know more.

  this.media.muted = this.playerFns.getMute();

  /* some programmed segments are supposed to be run at the beginning */

  var i = 0;

  for(i = 0; i < this.__codes.length; i++) {

    var c = this.__codes[i];

    if (0 == c.start) {

      c.onStart();

    }

    if (0 == c.end) {

      c.onEnd();

    }

  }

};

IriSP.PopcornReplacement.player.prototype.currentTime = function(time) {

  if (typeof(time) === "undefined") {        

      return this.playerFns.getPosition();            

  } else {

     var currentTime = +time;

     this.playerFns.seek(currentTime);              

     return currentTime;

  }

};

IriSP.PopcornReplacement.player.prototype.play = function() {

  this.media.paused = false;

  this.trigger("play");

  //IriSP.PopcornReplacement.trigger("playing");

  this.playerFns.play();

};

IriSP.PopcornReplacement.player.prototype.pause = function() {

//  if ( !this.media.paused ) {

    this.media.paused = true;

    this.trigger( "pause" );

    this.playerFns.pause();

//  }

};

IriSP.PopcornReplacement.player.prototype.muted = function(val) {

  if (typeof(val) !== "undefined") {

    if (this.playerFns.getMute() !== val) {

      if (val) {

        this.playerFns.setMute(true);

        this.media.muted = true;

      } else {

        this.playerFns.setMute(false);

        this.media.muted = false;

      }

      this.trigger( "volumechange" );

    }

    return this.playerFns.getMute();

  } else {

    return this.playerFns.getMute();

  }

};

IriSP.PopcornReplacement.player.prototype.volume = function(val) {

    if (typeof this.playerFns.getVolume == "undefined" || typeof this.playerFns.setVolume == "undefined") {

        return false;

    }

    var _vol = this.playerFns.getVolume();

    if (typeof(val) !== "undefined" && parseFloat(val) !== NaN) {

        val = Math.max(0, Math.min(1, val));

        if (parseFloat(val) != parseFloat(_vol)) {

            this.playerFns.setVolume(val);

            this.trigger("volumechange");

            _vol = this.playerFns.getVolume();

        }

    }

    return _vol;

};

IriSP.PopcornReplacement.player.prototype.mute = IriSP.PopcornReplacement.player.prototype.muted;

IriSP.PopcornReplacement.player.prototype.code = function(options) {

  this.__codes.push(options);

  return this;

};

/* called everytime the player updates itself 

   (onTime event)

 */

IriSP.PopcornReplacement.player.prototype.__timeHandler = function(event) {

  var pos = event.position;

  var i = 0;

  for(i = 0; i < this.__codes.length; i++) {

     var c = this.__codes[i];

     if (pos >= c.start && pos < c.end && 

         pos - 1 <= c.start) {       

        c.onStart();

     }

     if (pos > c.start && pos > c.end && 

         pos - 1 <= c.end) {

         c.onEnd();

     }

  }

  this.trigger("timeupdate");

};

IriSP.PopcornReplacement.player.prototype.__seekHandler = function(event) {

  var i = 0;

  for(i = 0; i < this.__codes.length; i++) {

     var c = this.__codes[i];

     if (event.position >= c.start && event.position < c.end) {        

        c.onEnd();

     }         

   }

   for(i = 0; i < this.__codes.length; i++) {

     var c = this.__codes[i];

     if (typeof(event.offset) === "undefined")

       event.offset = 0;

     if (event.offset >= c.start && event.offset < c.end) { 

       c.onStart();

     }

   }

  /* this signal sends as an extra argument the position in the video.

     As far as I know, this argument is not provided by popcorn */

  this.trigger("seeked", event.offset);  

};

IriSP.PopcornReplacement.player.prototype.__playHandler = function(event) {

  this.media.paused = false;

  this.trigger("play");

};

IriSP.PopcornReplacement.player.prototype.__pauseHandler = function(event) {

  this.media.paused = true;

  this.trigger("pause");

};

IriSP.PopcornReplacement.player.prototype.roundTime = function() {

  var currentTime = this.currentTime();

  return Math.round(currentTime);

};