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angular.module('my.cordova.plugins', ['ionic'])

// for media plugin : http://plugins.cordova.io/#/package/org.apache.cordova.media
.factory('MediaSrv', function($q, $ionicPlatform, $window){
  var service = {
    loadMedia: loadMedia,
    getStatusMessage: getStatusMessage,
    getErrorMessage: getErrorMessage
  };

  function loadMedia(src, onStop, onError, onStatus){
    var defer = $q.defer();
    $ionicPlatform.ready(function(){
      var mediaStatus = {
        code: 0,
        text: getStatusMessage(0)
      };
      var mediaSuccess = function(){
        mediaStatus.code = 4;
        mediaStatus.text = getStatusMessage(4);
        if(onStop){onStop();}
      };
      var mediaError = function(err){
        _logError(src, err);
        if(onError){onError(err);}
      };
      var mediaStatus = function(status){
        mediaStatus.code = status;
        mediaStatus.text = getStatusMessage(status);
        if(onStatus){onStatus(status);}
      };

      if($ionicPlatform.is('android')){src = '/android_asset/www/' + src;}
      var media = new $window.Media(src, mediaSuccess, mediaError, mediaStatus);
      media.status = mediaStatus;
      defer.resolve(media);
    });
    return defer.promise;
  }

  function _logError(src, err){
    console.error('MediaSrv error', {
      code: err.code,
      text: getErrorMessage(err.code)
    });
  }

  function getStatusMessage(status){
    if(status === 0){return 'Media.MEDIA_NONE';}
    else if(status === 1){return 'Media.MEDIA_STARTING';}
    else if(status === 2){return 'Media.MEDIA_RUNNING';}
    else if(status === 3){return 'Media.MEDIA_PAUSED';}
    else if(status === 4){return 'Media.MEDIA_STOPPED';}
    else {return 'Unknown status <'+status+'>';}
  }

  function getErrorMessage(code){
    if(code === 1){return 'MediaError.MEDIA_ERR_ABORTED';}
    else if(code === 2){return 'MediaError.MEDIA_ERR_NETWORK';}
    else if(code === 3){return 'MediaError.MEDIA_ERR_DECODE';}
    else if(code === 4){return 'MediaError.MEDIA_ERR_NONE_SUPPORTED';}
    else {return 'Unknown code <'+code+'>';}
  }

  return service;
});

angular.module('app', ['ionic', 'my.cordova.plugins'])

.controller('PlayCtrl', function($scope, MediaSrv){
  var myMedia = null;
  MediaSrv.loadMedia('sounds/mysound.mp3').then(function(media){
    myMedia = media;
  });

  $scope.play = function(){
    myMedia.play();
  };
})

.controller('PlayLoopCtrl', function($scope, MediaSrv){
  var shouldPlay = false;
  var myMedia = null;
  function onStop(){
    if(myMedia !== null && shouldPlay){
      myMedia.play();
    }
  }
  MediaSrv.loadMedia('sounds/1023.mp3', onStop).then(function(media){
    myMedia = media;
  });

  function playStart(){
    shouldPlay = true;
    onStop();
  }
  function playStop(){
    shouldPlay = false;
    myMedia.stop();
  }
})

.controller('PlayLoopMultiCtrl', function($scope, MediaSrv){
  var shouldPlay = false;
  var soundFiles = ['sounds/1.mp3', 'sounds/2.mp3', 'sounds/3.mp3'];
  var playingMediaIndex = null;
  var mediaInstances = [];
  var onStop = function(){
    if(shouldPlay){
      if(playingMediaIndex === null){
        playingMediaIndex = 0;
      } else {
        playingMediaIndex = (playingMediaIndex+1) % mediaInstances.length;
      }
      mediaInstances[playingMediaIndex].play();
    }
  };
  for(var i in soundFiles){
    MediaSrv.loadMedia(soundFiles[i], onStop).then(function(media){
      mediaInstances.push(media);
    });
  }

  function playStart(){
    shouldPlay = true;
    onStop();
  }
  function playStop(){
    shouldPlay = false;
    mediaInstances[playingMediaIndex].stop();
  }
});

// browser mocking for media plugin : http://plugins.cordova.io/#/package/org.apache.cordova.media
window.Media = function(src, mediaSuccess, mediaError, mediaStatus){
  // src: A URI containing the audio content. (DOMString)
  // mediaSuccess: (Optional) The callback that executes after a Media object has completed the current play, record, or stop action. (Function)
  // mediaError: (Optional) The callback that executes if an error occurs. (Function)
  // mediaStatus: (Optional) The callback that executes to indicate status changes. (Function)

  if (typeof Audio !== "function" && typeof Audio !== "object") {
    console.warn("HTML5 Audio is not supported in this browser");
  }
  var sound = new Audio();
  sound.src = src;
  sound.addEventListener("ended", mediaSuccess, false);
  sound.load();

  return {
    // Returns the current position within an audio file (in seconds).
    getCurrentPosition: function(mediaSuccess, mediaError){ mediaSuccess(sound.currentTime); },
    // Returns the duration of an audio file (in seconds) or -1.
    getDuration: function(){ return isNaN(sound.duration) ? -1 : sound.duration; },
    // Start or resume playing an audio file.
    play: function(){ sound.play(); },
    // Pause playback of an audio file.
    pause: function(){ sound.pause(); },
    // Releases the underlying operating system's audio resources. Should be called on a ressource when it's no longer needed !
    release: function(){},
    // Moves the position within the audio file.
    seekTo: function(milliseconds){}, // TODO
    // Set the volume for audio playback (between 0.0 and 1.0).
    setVolume: function(volume){ sound.volume = volume; },
    // Start recording an audio file.
    startRecord: function(){},
    // Stop recording an audio file.
    stopRecord: function(){},
    // Stop playing an audio file.
    stop: function(){ sound.pause(); if(mediaSuccess){mediaSuccess();} } // TODO
  };
};