'use strict';

angular.module('multiVideo',[])
  .directive('multiVideo', function ($compile,$sce,$rootScope,$interval,$window) {

    var templateWrapperProgressBar = '<div class="progress-wrapper">'+
                                          '<div class="progress-overlay"></div>'+
                                      '</div>';

    var templateProgressBar       =   '<div class="progress-play" ></div>'+
                                      '<div round-progress max="100"'+
                                        'current="progress" color="#45ccce"'+
                                        'bgcolor="#eaeaea" radius="70" stroke="5"'+
                                        'semi="false" rounded="false"'+
                                        'clockwise="true" responsive="true"'+
                                        'iterations="100" animation="easeInSine"'+
                                        'class="pointer" ng-click="clickProgress()">'+
                                      '</div>';

    var templateAnguVideo = '<div anguvideo ng-model="src"></div>';
    var templateClappr    = '<clappr src="src"></clappr>';
    var templateLightBox  = '<angular-master-lightbox images="src">' +
                            '</angular-master-lightbox>';

    var switchDirectives = function(val){
        var  htmlDirective;
        var extension = val.substring(val.length - 4);

        if( extension === ".mp4"){
          htmlDirective = templateClappr;
        }
        else if(extension === ".jpg" || extension === ".png" || extension === ".gif"){
          htmlDirective = templateLightBox;
        }
        else{
          htmlDirective = templateAnguVideo;
        }

        return htmlDirective;
    }

    return {
      restrict: 'E',
      transclude: true,
      scope:{
        src: '=src',
        clickProgress: '&',
        watchedMinPercentage: '&',
        allowEmmitWatchedMinPercentageEvent: '=',
        automaticNextVideo: '=automaticNextVideo'
      },
      link: function(scope,element,attrs,ctrl,transclude){

        scope.interval = null;
        scope.$watch('src', watchScopeSrc(element,scope));
        scope.$on("multiVideo:finishVideo", actionMultiVideoFinish(element,transclude,scope));
        var multiVideoFinish = function(){
            return $rootScope.$broadcast("multiVideo:finishVideo");
        };
        var multiVideoWatchedMinPercentage = function(){
          if(scope.allowEmmitWatchedMinPercentageEvent){
            scope.watchedMinPercentage();
          }
        };
        $window.addEventListener('visibilitychange',callbackVisibilitychange);

        function callbackVisibilitychange() {
          if(document.hidden){
            scope.$broadcast("pause");
          }else{
            scope.$broadcast("play");
          }
        }
        scope.$on("clappr:finishVideo", multiVideoFinish);
        scope.$on("anguvideo:finishVideo", multiVideoFinish);
        scope.$on("$destroy", function() {
          $window.RemoveEventListener('visibilitychange',callbackVisibilitychange);
        });
        element.$on("$destroy", function() {
          $window.RemoveEventListener('visibilitychange',callbackVisibilitychange);
        });
        scope.$on("clappr:watchedMinPercentage", multiVideoWatchedMinPercentage);
        scope.$on("anguvideo:watchedMinPercentage", multiVideoWatchedMinPercentage)
      }

    };

    function clearIntervalProgressBar(scope){
      return function(){
        $interval.cancel(scope.interval);
        scope.interval = undefined;
        scope.progress = 0;


        var mediaElement = angular.element('video')[0];
        if(mediaElement){
          mediaElement.pause();
          mediaElement.src='';
        }

        return false;
      }
    }

    function watchScopeSrc(element,scope) {
        return function(newVal){
          if (!newVal)
            return;

           $(".progress-wrapper").hide();
           clearIntervalProgressBar(scope)();
           element.html(switchDirectives(newVal)).show();
           $compile(element.contents())(scope);
        }

    }

    function incrementCurrentProgress(scope){
      return function(){
        scope.progress += 0.5;
        if(scope.progress >= 100){
          $rootScope.$broadcast("multiVideo:finishProgressbar");
          clearIntervalProgressBar(scope)();
          return false;
        }
      }
    }

    function actionMultiVideoFinish(element,transclude,scope) {
      return function(){

        element.html(templateWrapperProgressBar);

        if(scope.automaticNextVideo){
          angular.element(".progress-overlay").append(templateProgressBar);
          scope.progress = 0;
          scope.interval = $interval(incrementCurrentProgress(scope), 50);
        }
        angular.element(".progress-overlay").after(transclude());
        $compile(element.contents())(scope);
        $(".progress-wrapper").show();
      }
    }

  });